Add first tests
Change-Id: I7ef95cef912feb2b997e1c7da5eb5a369cbe56b1
diff --git a/tests/data/wpd19_10000.rocksdb/000003.log b/tests/data/wpd19_10000.rocksdb/000003.log
new file mode 100644
index 0000000..a876bdc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/000003.log
Binary files differ
diff --git a/tests/data/wpd19_10000.rocksdb/CURRENT b/tests/data/wpd19_10000.rocksdb/CURRENT
new file mode 100644
index 0000000..7ed683d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/CURRENT
@@ -0,0 +1 @@
+MANIFEST-000001
diff --git a/tests/data/wpd19_10000.rocksdb/IDENTITY b/tests/data/wpd19_10000.rocksdb/IDENTITY
new file mode 100644
index 0000000..33fc00a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/IDENTITY
@@ -0,0 +1 @@
+1f960fe0-3f8e-41bc-a2b8-c87ead2dd25b
diff --git a/tests/data/wpd19_10000.rocksdb/LOCK b/tests/data/wpd19_10000.rocksdb/LOCK
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOCK
diff --git a/tests/data/wpd19_10000.rocksdb/LOG b/tests/data/wpd19_10000.rocksdb/LOG
new file mode 100644
index 0000000..c4e921e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG
@@ -0,0 +1,186 @@
+2021/03/14-09:02:42.575559 7f559c0c3a80 RocksDB version: 5.11.3
+2021/03/14-09:02:42.575613 7f559c0c3a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:02:42.575615 7f559c0c3a80 Compile date Mar 13 2021
+2021/03/14-09:02:42.575619 7f559c0c3a80 DB SUMMARY
+2021/03/14-09:02:42.575808 7f559c0c3a80 CURRENT file: CURRENT
+2021/03/14-09:02:42.575810 7f559c0c3a80 IDENTITY file: IDENTITY
+2021/03/14-09:02:42.575828 7f559c0c3a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:02:42.575829 7f559c0c3a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:02:42.575830 7f559c0c3a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:02:42.575837 7f559c0c3a80 Options.error_if_exists: 0
+2021/03/14-09:02:42.575837 7f559c0c3a80 Options.create_if_missing: 1
+2021/03/14-09:02:42.575838 7f559c0c3a80 Options.paranoid_checks: 1
+2021/03/14-09:02:42.575839 7f559c0c3a80 Options.env: 0x7f559ca7d080
+2021/03/14-09:02:42.575839 7f559c0c3a80 Options.info_log: 0x20a6c90
+2021/03/14-09:02:42.575840 7f559c0c3a80 Options.max_file_opening_threads: 16
+2021/03/14-09:02:42.575840 7f559c0c3a80 Options.statistics: (nil)
+2021/03/14-09:02:42.575841 7f559c0c3a80 Options.use_fsync: 0
+2021/03/14-09:02:42.575842 7f559c0c3a80 Options.max_log_file_size: 0
+2021/03/14-09:02:42.575842 7f559c0c3a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:02:42.575843 7f559c0c3a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:02:42.575843 7f559c0c3a80 Options.keep_log_file_num: 1000
+2021/03/14-09:02:42.575844 7f559c0c3a80 Options.recycle_log_file_num: 0
+2021/03/14-09:02:42.575845 7f559c0c3a80 Options.allow_fallocate: 1
+2021/03/14-09:02:42.575845 7f559c0c3a80 Options.allow_mmap_reads: 0
+2021/03/14-09:02:42.575846 7f559c0c3a80 Options.allow_mmap_writes: 0
+2021/03/14-09:02:42.575846 7f559c0c3a80 Options.use_direct_reads: 0
+2021/03/14-09:02:42.575847 7f559c0c3a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:02:42.575847 7f559c0c3a80 Options.create_missing_column_families: 0
+2021/03/14-09:02:42.575848 7f559c0c3a80 Options.db_log_dir:
+2021/03/14-09:02:42.575849 7f559c0c3a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:02:42.575849 7f559c0c3a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:02:42.575850 7f559c0c3a80 Options.max_subcompactions: 1
+2021/03/14-09:02:42.575850 7f559c0c3a80 Options.max_background_flushes: -1
+2021/03/14-09:02:42.575851 7f559c0c3a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:02:42.575852 7f559c0c3a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:02:42.575852 7f559c0c3a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:02:42.575853 7f559c0c3a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:02:42.575853 7f559c0c3a80 Options.advise_random_on_open: 1
+2021/03/14-09:02:42.575854 7f559c0c3a80 Options.db_write_buffer_size: 0
+2021/03/14-09:02:42.575854 7f559c0c3a80 Options.write_buffer_manager: 0x208eb90
+2021/03/14-09:02:42.575855 7f559c0c3a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:02:42.575856 7f559c0c3a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:02:42.575856 7f559c0c3a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:02:42.575857 7f559c0c3a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:02:42.575857 7f559c0c3a80 Options.rate_limiter: (nil)
+2021/03/14-09:02:42.575859 7f559c0c3a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:02:42.575866 7f559c0c3a80 Options.wal_recovery_mode: 2
+2021/03/14-09:02:42.575867 7f559c0c3a80 Options.enable_thread_tracking: 0
+2021/03/14-09:02:42.575868 7f559c0c3a80 Options.enable_pipelined_write: 0
+2021/03/14-09:02:42.575868 7f559c0c3a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:02:42.575869 7f559c0c3a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:02:42.575869 7f559c0c3a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:02:42.575870 7f559c0c3a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:02:42.575871 7f559c0c3a80 Options.row_cache: None
+2021/03/14-09:02:42.575871 7f559c0c3a80 Options.wal_filter: None
+2021/03/14-09:02:42.575872 7f559c0c3a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:02:42.575872 7f559c0c3a80 Options.allow_ingest_behind: 0
+2021/03/14-09:02:42.575873 7f559c0c3a80 Options.preserve_deletes: 0
+2021/03/14-09:02:42.575873 7f559c0c3a80 Options.two_write_queues: 0
+2021/03/14-09:02:42.575874 7f559c0c3a80 Options.manual_wal_flush: 0
+2021/03/14-09:02:42.575875 7f559c0c3a80 Options.max_background_jobs: 16
+2021/03/14-09:02:42.575876 7f559c0c3a80 Options.max_background_compactions: -1
+2021/03/14-09:02:42.575876 7f559c0c3a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:02:42.575877 7f559c0c3a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:02:42.575877 7f559c0c3a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:02:42.575878 7f559c0c3a80 Options.max_total_wal_size: 0
+2021/03/14-09:02:42.575879 7f559c0c3a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:02:42.575879 7f559c0c3a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:02:42.575880 7f559c0c3a80 Options.max_open_files: -1
+2021/03/14-09:02:42.575880 7f559c0c3a80 Options.bytes_per_sync: 0
+2021/03/14-09:02:42.575881 7f559c0c3a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:02:42.575882 7f559c0c3a80 Options.compaction_readahead_size: 0
+2021/03/14-09:02:42.575882 7f559c0c3a80 Compression algorithms supported:
+2021/03/14-09:02:42.575883 7f559c0c3a80 Snappy supported: 1
+2021/03/14-09:02:42.575883 7f559c0c3a80 Zlib supported: 1
+2021/03/14-09:02:42.575884 7f559c0c3a80 Bzip supported: 1
+2021/03/14-09:02:42.575884 7f559c0c3a80 LZ4 supported: 1
+2021/03/14-09:02:42.575885 7f559c0c3a80 ZSTDNotFinal supported: 1
+2021/03/14-09:02:42.575889 7f559c0c3a80 ZSTD supported: 1
+2021/03/14-09:02:42.575892 7f559c0c3a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:02:42.575893 7f559c0c3a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:02:42.575985 7f559c0c3a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:02:42.576038 7f559c0c3a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:02:42.576039 7f559c0c3a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:02:42.576040 7f559c0c3a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:02:42.576041 7f559c0c3a80 Options.compaction_filter: None
+2021/03/14-09:02:42.576041 7f559c0c3a80 Options.compaction_filter_factory: None
+2021/03/14-09:02:42.576042 7f559c0c3a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:02:42.576043 7f559c0c3a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:02:42.576059 7f559c0c3a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x209e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2083c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:02:42.576065 7f559c0c3a80 Options.write_buffer_size: 134217728
+2021/03/14-09:02:42.576065 7f559c0c3a80 Options.max_write_buffer_number: 6
+2021/03/14-09:02:42.576066 7f559c0c3a80 Options.compression[0]: NoCompression
+2021/03/14-09:02:42.576067 7f559c0c3a80 Options.compression[1]: NoCompression
+2021/03/14-09:02:42.576068 7f559c0c3a80 Options.compression[2]: Snappy
+2021/03/14-09:02:42.576068 7f559c0c3a80 Options.compression[3]: Snappy
+2021/03/14-09:02:42.576069 7f559c0c3a80 Options.compression[4]: Snappy
+2021/03/14-09:02:42.576069 7f559c0c3a80 Options.compression[5]: Snappy
+2021/03/14-09:02:42.576070 7f559c0c3a80 Options.compression[6]: Snappy
+2021/03/14-09:02:42.576070 7f559c0c3a80 Options.bottommost_compression: Disabled
+2021/03/14-09:02:42.576071 7f559c0c3a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:02:42.576072 7f559c0c3a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:02:42.576072 7f559c0c3a80 Options.num_levels: 7
+2021/03/14-09:02:42.576073 7f559c0c3a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:02:42.576074 7f559c0c3a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:02:42.576074 7f559c0c3a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:02:42.576075 7f559c0c3a80 Options.compression_opts.level: -1
+2021/03/14-09:02:42.576075 7f559c0c3a80 Options.compression_opts.strategy: 0
+2021/03/14-09:02:42.576076 7f559c0c3a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:02:42.576076 7f559c0c3a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:02:42.576077 7f559c0c3a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:02:42.576078 7f559c0c3a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:02:42.576078 7f559c0c3a80 Options.target_file_size_base: 67108864
+2021/03/14-09:02:42.576079 7f559c0c3a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:02:42.576079 7f559c0c3a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:02:42.576080 7f559c0c3a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:02:42.576080 7f559c0c3a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:02:42.576082 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:02:42.576090 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:02:42.576091 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:02:42.576091 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:02:42.576092 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:02:42.576092 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:02:42.576093 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:02:42.576093 7f559c0c3a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:02:42.576094 7f559c0c3a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:02:42.576095 7f559c0c3a80 Options.arena_block_size: 16777216
+2021/03/14-09:02:42.576095 7f559c0c3a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:02:42.576096 7f559c0c3a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:02:42.576096 7f559c0c3a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:02:42.576097 7f559c0c3a80 Options.disable_auto_compactions: 0
+2021/03/14-09:02:42.576099 7f559c0c3a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:02:42.576099 7f559c0c3a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:02:42.576100 7f559c0c3a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:02:42.576101 7f559c0c3a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:02:42.576101 7f559c0c3a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:02:42.576102 7f559c0c3a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:02:42.576102 7f559c0c3a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:02:42.576103 7f559c0c3a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:02:42.576104 7f559c0c3a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:02:42.576105 7f559c0c3a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:02:42.576105 7f559c0c3a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:02:42.576106 7f559c0c3a80 Options.table_properties_collectors:
+2021/03/14-09:02:42.576106 7f559c0c3a80 Options.inplace_update_support: 0
+2021/03/14-09:02:42.576107 7f559c0c3a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:02:42.576107 7f559c0c3a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:02:42.576108 7f559c0c3a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:02:42.576109 7f559c0c3a80 Options.bloom_locality: 0
+2021/03/14-09:02:42.576109 7f559c0c3a80 Options.max_successive_merges: 0
+2021/03/14-09:02:42.576110 7f559c0c3a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:02:42.576110 7f559c0c3a80 Options.paranoid_file_checks: 0
+2021/03/14-09:02:42.576111 7f559c0c3a80 Options.force_consistency_checks: 0
+2021/03/14-09:02:42.576112 7f559c0c3a80 Options.report_bg_io_stats: 0
+2021/03/14-09:02:42.576482 7f559c0c3a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:02:42.576484 7f559c0c3a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:02:42.576661 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708962576650, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:02:42.576666 7f559c0c3a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:02:43.279911 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708963279908, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615664307069573 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615664307069573
new file mode 100644
index 0000000..76c1639
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615664307069573
@@ -0,0 +1,182 @@
+2021/03/13-19:40:53.815054 7f28b47f7a40 RocksDB version: 5.10.0
+2021/03/13-19:40:53.815209 7f28b47f7a40 Git sha rocksdb_build_git_sha:b010116d8263db1ba3f6ea5b30f9886243320a59
+2021/03/13-19:40:53.815214 7f28b47f7a40 Compile date Jan 11 2018
+2021/03/13-19:40:53.815222 7f28b47f7a40 DB SUMMARY
+2021/03/13-19:40:53.815639 7f28b47f7a40 SST files in models/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-19:40:53.815650 7f28b47f7a40 Write Ahead Log file in models/wpd19_10000.rocksdb:
+2021/03/13-19:40:53.815655 7f28b47f7a40 Options.error_if_exists: 0
+2021/03/13-19:40:53.815658 7f28b47f7a40 Options.create_if_missing: 1
+2021/03/13-19:40:53.815660 7f28b47f7a40 Options.paranoid_checks: 1
+2021/03/13-19:40:53.815663 7f28b47f7a40 Options.env: 0x91ce80
+2021/03/13-19:40:53.815665 7f28b47f7a40 Options.info_log: 0x1c1a2b0
+2021/03/13-19:40:53.815668 7f28b47f7a40 Options.max_file_opening_threads: 16
+2021/03/13-19:40:53.815671 7f28b47f7a40 Options.statistics: (nil)
+2021/03/13-19:40:53.815673 7f28b47f7a40 Options.use_fsync: 0
+2021/03/13-19:40:53.815675 7f28b47f7a40 Options.max_log_file_size: 0
+2021/03/13-19:40:53.815678 7f28b47f7a40 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-19:40:53.815680 7f28b47f7a40 Options.log_file_time_to_roll: 0
+2021/03/13-19:40:53.815683 7f28b47f7a40 Options.keep_log_file_num: 1000
+2021/03/13-19:40:53.815685 7f28b47f7a40 Options.recycle_log_file_num: 0
+2021/03/13-19:40:53.815687 7f28b47f7a40 Options.allow_fallocate: 1
+2021/03/13-19:40:53.815689 7f28b47f7a40 Options.allow_mmap_reads: 0
+2021/03/13-19:40:53.815692 7f28b47f7a40 Options.allow_mmap_writes: 0
+2021/03/13-19:40:53.815694 7f28b47f7a40 Options.use_direct_reads: 0
+2021/03/13-19:40:53.815696 7f28b47f7a40 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-19:40:53.815698 7f28b47f7a40 Options.create_missing_column_families: 0
+2021/03/13-19:40:53.815701 7f28b47f7a40 Options.db_log_dir:
+2021/03/13-19:40:53.815703 7f28b47f7a40 Options.wal_dir: models/wpd19_10000.rocksdb
+2021/03/13-19:40:53.815706 7f28b47f7a40 Options.table_cache_numshardbits: 6
+2021/03/13-19:40:53.815708 7f28b47f7a40 Options.max_subcompactions: 1
+2021/03/13-19:40:53.815710 7f28b47f7a40 Options.max_background_flushes: -1
+2021/03/13-19:40:53.815713 7f28b47f7a40 Options.WAL_ttl_seconds: 0
+2021/03/13-19:40:53.815715 7f28b47f7a40 Options.WAL_size_limit_MB: 0
+2021/03/13-19:40:53.815717 7f28b47f7a40 Options.manifest_preallocation_size: 4194304
+2021/03/13-19:40:53.815720 7f28b47f7a40 Options.is_fd_close_on_exec: 1
+2021/03/13-19:40:53.815722 7f28b47f7a40 Options.advise_random_on_open: 1
+2021/03/13-19:40:53.815724 7f28b47f7a40 Options.db_write_buffer_size: 0
+2021/03/13-19:40:53.815726 7f28b47f7a40 Options.write_buffer_manager: 0x1c1a310
+2021/03/13-19:40:53.815729 7f28b47f7a40 Options.access_hint_on_compaction_start: 1
+2021/03/13-19:40:53.815731 7f28b47f7a40 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-19:40:53.815733 7f28b47f7a40 Options.random_access_max_buffer_size: 1048576
+2021/03/13-19:40:53.815736 7f28b47f7a40 Options.use_adaptive_mutex: 0
+2021/03/13-19:40:53.815738 7f28b47f7a40 Options.rate_limiter: (nil)
+2021/03/13-19:40:53.815741 7f28b47f7a40 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-19:40:53.815743 7f28b47f7a40 Options.wal_recovery_mode: 2
+2021/03/13-19:40:53.815745 7f28b47f7a40 Options.enable_thread_tracking: 0
+2021/03/13-19:40:53.815747 7f28b47f7a40 Options.enable_pipelined_write: 0
+2021/03/13-19:40:53.815755 7f28b47f7a40 Options.allow_concurrent_memtable_write: 1
+2021/03/13-19:40:53.815758 7f28b47f7a40 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-19:40:53.815760 7f28b47f7a40 Options.write_thread_max_yield_usec: 100
+2021/03/13-19:40:53.815763 7f28b47f7a40 Options.write_thread_slow_yield_usec: 3
+2021/03/13-19:40:53.815765 7f28b47f7a40 Options.row_cache: None
+2021/03/13-19:40:53.815771 7f28b47f7a40 Options.wal_filter: None
+2021/03/13-19:40:53.815774 7f28b47f7a40 Options.avoid_flush_during_recovery: 0
+2021/03/13-19:40:53.815776 7f28b47f7a40 Options.allow_ingest_behind: 0
+2021/03/13-19:40:53.815779 7f28b47f7a40 Options.preserve_deletes: 0
+2021/03/13-19:40:53.815781 7f28b47f7a40 Options.two_write_queues: 0
+2021/03/13-19:40:53.815783 7f28b47f7a40 Options.manual_wal_flush: 0
+2021/03/13-19:40:53.815786 7f28b47f7a40 Options.max_background_jobs: 16
+2021/03/13-19:40:53.815788 7f28b47f7a40 Options.max_background_compactions: -1
+2021/03/13-19:40:53.815790 7f28b47f7a40 Options.avoid_flush_during_shutdown: 0
+2021/03/13-19:40:53.815793 7f28b47f7a40 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-19:40:53.815795 7f28b47f7a40 Options.delayed_write_rate : 16777216
+2021/03/13-19:40:53.815798 7f28b47f7a40 Options.max_total_wal_size: 0
+2021/03/13-19:40:53.815800 7f28b47f7a40 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-19:40:53.815802 7f28b47f7a40 Options.stats_dump_period_sec: 600
+2021/03/13-19:40:53.815805 7f28b47f7a40 Options.max_open_files: -1
+2021/03/13-19:40:53.815807 7f28b47f7a40 Options.bytes_per_sync: 0
+2021/03/13-19:40:53.815809 7f28b47f7a40 Options.wal_bytes_per_sync: 0
+2021/03/13-19:40:53.815812 7f28b47f7a40 Options.compaction_readahead_size: 0
+2021/03/13-19:40:53.815814 7f28b47f7a40 Compression algorithms supported:
+2021/03/13-19:40:53.815817 7f28b47f7a40 Snappy supported: 1
+2021/03/13-19:40:53.815819 7f28b47f7a40 Zlib supported: 1
+2021/03/13-19:40:53.815822 7f28b47f7a40 Bzip supported: 1
+2021/03/13-19:40:53.815824 7f28b47f7a40 LZ4 supported: 1
+2021/03/13-19:40:53.815826 7f28b47f7a40 ZSTDNotFinal supported: 1
+2021/03/13-19:40:53.815840 7f28b47f7a40 ZSTD supported: 1
+2021/03/13-19:40:53.815846 7f28b47f7a40 Fast CRC32 supported: Not supported on x86
+2021/03/13-19:40:53.818294 7f28b47f7a40 [db/db_impl_open.cc:227] Creating manifest 1
+2021/03/13-19:40:53.834674 7f28b47f7a40 [db/version_set.cc:2834] Recovering from manifest file: MANIFEST-000001
+2021/03/13-19:40:53.835486 7f28b47f7a40 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-19:40:53.835498 7f28b47f7a40 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-19:40:53.835504 7f28b47f7a40 Options.merge_operator: UInt64AddOperator
+2021/03/13-19:40:53.835507 7f28b47f7a40 Options.compaction_filter: None
+2021/03/13-19:40:53.835510 7f28b47f7a40 Options.compaction_filter_factory: None
+2021/03/13-19:40:53.835512 7f28b47f7a40 Options.memtable_factory: SkipListFactory
+2021/03/13-19:40:53.835515 7f28b47f7a40 Options.table_factory: BlockBasedTable
+2021/03/13-19:40:53.835591 7f28b47f7a40 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1c14870)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1c148b0
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0,000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+ enable_index_compression: 1
+2021/03/13-19:40:53.835627 7f28b47f7a40 Options.write_buffer_size: 134217728
+2021/03/13-19:40:53.835631 7f28b47f7a40 Options.max_write_buffer_number: 6
+2021/03/13-19:40:53.835635 7f28b47f7a40 Options.compression[0]: NoCompression
+2021/03/13-19:40:53.835638 7f28b47f7a40 Options.compression[1]: NoCompression
+2021/03/13-19:40:53.835641 7f28b47f7a40 Options.compression[2]: Snappy
+2021/03/13-19:40:53.835643 7f28b47f7a40 Options.compression[3]: Snappy
+2021/03/13-19:40:53.835646 7f28b47f7a40 Options.compression[4]: Snappy
+2021/03/13-19:40:53.835648 7f28b47f7a40 Options.compression[5]: Snappy
+2021/03/13-19:40:53.835650 7f28b47f7a40 Options.compression[6]: Snappy
+2021/03/13-19:40:53.835653 7f28b47f7a40 Options.bottommost_compression: Disabled
+2021/03/13-19:40:53.835656 7f28b47f7a40 Options.prefix_extractor: nullptr
+2021/03/13-19:40:53.835658 7f28b47f7a40 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-19:40:53.835660 7f28b47f7a40 Options.num_levels: 7
+2021/03/13-19:40:53.835662 7f28b47f7a40 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-19:40:53.835664 7f28b47f7a40 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-19:40:53.835667 7f28b47f7a40 Options.compression_opts.window_bits: -14
+2021/03/13-19:40:53.835669 7f28b47f7a40 Options.compression_opts.level: -1
+2021/03/13-19:40:53.835671 7f28b47f7a40 Options.compression_opts.strategy: 0
+2021/03/13-19:40:53.835673 7f28b47f7a40 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-19:40:53.835675 7f28b47f7a40 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-19:40:53.835677 7f28b47f7a40 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-19:40:53.835679 7f28b47f7a40 Options.level0_stop_writes_trigger: 36
+2021/03/13-19:40:53.835681 7f28b47f7a40 Options.target_file_size_base: 67108864
+2021/03/13-19:40:53.835684 7f28b47f7a40 Options.target_file_size_multiplier: 1
+2021/03/13-19:40:53.835686 7f28b47f7a40 Options.max_bytes_for_level_base: 536870912
+2021/03/13-19:40:53.835688 7f28b47f7a40 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-19:40:53.835690 7f28b47f7a40 Options.max_bytes_for_level_multiplier: 10,000000
+2021/03/13-19:40:53.835696 7f28b47f7a40 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-19:40:53.835698 7f28b47f7a40 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-19:40:53.835700 7f28b47f7a40 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-19:40:53.835703 7f28b47f7a40 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-19:40:53.835705 7f28b47f7a40 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-19:40:53.835707 7f28b47f7a40 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-19:40:53.835709 7f28b47f7a40 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-19:40:53.835711 7f28b47f7a40 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-19:40:53.835714 7f28b47f7a40 Options.max_compaction_bytes: 1677721600
+2021/03/13-19:40:53.835716 7f28b47f7a40 Options.arena_block_size: 16777216
+2021/03/13-19:40:53.835718 7f28b47f7a40 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-19:40:53.835720 7f28b47f7a40 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-19:40:53.835723 7f28b47f7a40 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-19:40:53.835725 7f28b47f7a40 Options.disable_auto_compactions: 0
+2021/03/13-19:40:53.835728 7f28b47f7a40 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-19:40:53.835730 7f28b47f7a40 Options.compaction_pri: kByCompensatedSize
+2021/03/13-19:40:53.835733 7f28b47f7a40 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-19:40:53.835735 7f28b47f7a40 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-19:40:53.835737 7f28b47f7a40 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-19:40:53.835739 7f28b47f7a40 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-19:40:53.835742 7f28b47f7a40 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-19:40:53.835744 7f28b47f7a40 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-19:40:53.835746 7f28b47f7a40 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-19:40:53.835749 7f28b47f7a40 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-19:40:53.835751 7f28b47f7a40 Options.compaction_options_fifo.ttl: 0
+2021/03/13-19:40:53.835753 7f28b47f7a40 Options.table_properties_collectors:
+2021/03/13-19:40:53.835755 7f28b47f7a40 Options.inplace_update_support: 0
+2021/03/13-19:40:53.835758 7f28b47f7a40 Options.inplace_update_num_locks: 10000
+2021/03/13-19:40:53.835760 7f28b47f7a40 Options.memtable_prefix_bloom_size_ratio: 0,000000
+2021/03/13-19:40:53.835763 7f28b47f7a40 Options.memtable_huge_page_size: 0
+2021/03/13-19:40:53.835765 7f28b47f7a40 Options.bloom_locality: 0
+2021/03/13-19:40:53.835767 7f28b47f7a40 Options.max_successive_merges: 0
+2021/03/13-19:40:53.835769 7f28b47f7a40 Options.optimize_filters_for_hits: 0
+2021/03/13-19:40:53.835771 7f28b47f7a40 Options.paranoid_file_checks: 0
+2021/03/13-19:40:53.835774 7f28b47f7a40 Options.force_consistency_checks: 0
+2021/03/13-19:40:53.835776 7f28b47f7a40 Options.report_bg_io_stats: 0
+2021/03/13-19:40:53.838596 7f28b47f7a40 [db/version_set.cc:3100] Recovered from manifest file:models/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-19:40:53.838613 7f28b47f7a40 [db/version_set.cc:3108] Column family [default] (ID 0), log number is 0
+2021/03/13-19:40:53.850121 7f28b47f7a40 [db/db_impl_open.cc:1165] DB pointer 0x1c19630
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615664352846677 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615664352846677
new file mode 100644
index 0000000..46cd4a0
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615664352846677
@@ -0,0 +1,186 @@
+2021/03/13-20:38:27.069980 7f68b1fd8a80 RocksDB version: 5.11.3
+2021/03/13-20:38:27.070057 7f68b1fd8a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-20:38:27.070059 7f68b1fd8a80 Compile date Mar 13 2021
+2021/03/13-20:38:27.070063 7f68b1fd8a80 DB SUMMARY
+2021/03/13-20:38:27.070087 7f68b1fd8a80 CURRENT file: CURRENT
+2021/03/13-20:38:27.070088 7f68b1fd8a80 IDENTITY file: IDENTITY
+2021/03/13-20:38:27.070091 7f68b1fd8a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-20:38:27.070093 7f68b1fd8a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-20:38:27.070094 7f68b1fd8a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-20:38:27.070095 7f68b1fd8a80 Options.error_if_exists: 0
+2021/03/13-20:38:27.070096 7f68b1fd8a80 Options.create_if_missing: 1
+2021/03/13-20:38:27.070097 7f68b1fd8a80 Options.paranoid_checks: 1
+2021/03/13-20:38:27.070097 7f68b1fd8a80 Options.env: 0x7f68b2992080
+2021/03/13-20:38:27.070098 7f68b1fd8a80 Options.info_log: 0x1fbcad0
+2021/03/13-20:38:27.070099 7f68b1fd8a80 Options.max_file_opening_threads: 16
+2021/03/13-20:38:27.070099 7f68b1fd8a80 Options.statistics: (nil)
+2021/03/13-20:38:27.070100 7f68b1fd8a80 Options.use_fsync: 0
+2021/03/13-20:38:27.070101 7f68b1fd8a80 Options.max_log_file_size: 0
+2021/03/13-20:38:27.070102 7f68b1fd8a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-20:38:27.070102 7f68b1fd8a80 Options.log_file_time_to_roll: 0
+2021/03/13-20:38:27.070103 7f68b1fd8a80 Options.keep_log_file_num: 1000
+2021/03/13-20:38:27.070104 7f68b1fd8a80 Options.recycle_log_file_num: 0
+2021/03/13-20:38:27.070104 7f68b1fd8a80 Options.allow_fallocate: 1
+2021/03/13-20:38:27.070105 7f68b1fd8a80 Options.allow_mmap_reads: 0
+2021/03/13-20:38:27.070106 7f68b1fd8a80 Options.allow_mmap_writes: 0
+2021/03/13-20:38:27.070106 7f68b1fd8a80 Options.use_direct_reads: 0
+2021/03/13-20:38:27.070107 7f68b1fd8a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-20:38:27.070107 7f68b1fd8a80 Options.create_missing_column_families: 0
+2021/03/13-20:38:27.070108 7f68b1fd8a80 Options.db_log_dir:
+2021/03/13-20:38:27.070109 7f68b1fd8a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-20:38:27.070109 7f68b1fd8a80 Options.table_cache_numshardbits: 6
+2021/03/13-20:38:27.070110 7f68b1fd8a80 Options.max_subcompactions: 1
+2021/03/13-20:38:27.070111 7f68b1fd8a80 Options.max_background_flushes: -1
+2021/03/13-20:38:27.070111 7f68b1fd8a80 Options.WAL_ttl_seconds: 0
+2021/03/13-20:38:27.070112 7f68b1fd8a80 Options.WAL_size_limit_MB: 0
+2021/03/13-20:38:27.070113 7f68b1fd8a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-20:38:27.070113 7f68b1fd8a80 Options.is_fd_close_on_exec: 1
+2021/03/13-20:38:27.070114 7f68b1fd8a80 Options.advise_random_on_open: 1
+2021/03/13-20:38:27.070115 7f68b1fd8a80 Options.db_write_buffer_size: 0
+2021/03/13-20:38:27.070115 7f68b1fd8a80 Options.write_buffer_manager: 0x1fa4e70
+2021/03/13-20:38:27.070116 7f68b1fd8a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-20:38:27.070116 7f68b1fd8a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-20:38:27.070117 7f68b1fd8a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-20:38:27.070118 7f68b1fd8a80 Options.use_adaptive_mutex: 0
+2021/03/13-20:38:27.070118 7f68b1fd8a80 Options.rate_limiter: (nil)
+2021/03/13-20:38:27.070120 7f68b1fd8a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-20:38:27.070128 7f68b1fd8a80 Options.wal_recovery_mode: 2
+2021/03/13-20:38:27.070129 7f68b1fd8a80 Options.enable_thread_tracking: 0
+2021/03/13-20:38:27.070130 7f68b1fd8a80 Options.enable_pipelined_write: 0
+2021/03/13-20:38:27.070130 7f68b1fd8a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-20:38:27.070131 7f68b1fd8a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-20:38:27.070132 7f68b1fd8a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-20:38:27.070132 7f68b1fd8a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-20:38:27.070133 7f68b1fd8a80 Options.row_cache: None
+2021/03/13-20:38:27.070134 7f68b1fd8a80 Options.wal_filter: None
+2021/03/13-20:38:27.070134 7f68b1fd8a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-20:38:27.070135 7f68b1fd8a80 Options.allow_ingest_behind: 0
+2021/03/13-20:38:27.070135 7f68b1fd8a80 Options.preserve_deletes: 0
+2021/03/13-20:38:27.070136 7f68b1fd8a80 Options.two_write_queues: 0
+2021/03/13-20:38:27.070137 7f68b1fd8a80 Options.manual_wal_flush: 0
+2021/03/13-20:38:27.070138 7f68b1fd8a80 Options.max_background_jobs: 16
+2021/03/13-20:38:27.070139 7f68b1fd8a80 Options.max_background_compactions: -1
+2021/03/13-20:38:27.070139 7f68b1fd8a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-20:38:27.070140 7f68b1fd8a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-20:38:27.070141 7f68b1fd8a80 Options.delayed_write_rate : 16777216
+2021/03/13-20:38:27.070141 7f68b1fd8a80 Options.max_total_wal_size: 0
+2021/03/13-20:38:27.070142 7f68b1fd8a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-20:38:27.070143 7f68b1fd8a80 Options.stats_dump_period_sec: 600
+2021/03/13-20:38:27.070143 7f68b1fd8a80 Options.max_open_files: -1
+2021/03/13-20:38:27.070144 7f68b1fd8a80 Options.bytes_per_sync: 0
+2021/03/13-20:38:27.070144 7f68b1fd8a80 Options.wal_bytes_per_sync: 0
+2021/03/13-20:38:27.070145 7f68b1fd8a80 Options.compaction_readahead_size: 0
+2021/03/13-20:38:27.070146 7f68b1fd8a80 Compression algorithms supported:
+2021/03/13-20:38:27.070146 7f68b1fd8a80 Snappy supported: 1
+2021/03/13-20:38:27.070147 7f68b1fd8a80 Zlib supported: 1
+2021/03/13-20:38:27.070148 7f68b1fd8a80 Bzip supported: 1
+2021/03/13-20:38:27.070148 7f68b1fd8a80 LZ4 supported: 1
+2021/03/13-20:38:27.070149 7f68b1fd8a80 ZSTDNotFinal supported: 1
+2021/03/13-20:38:27.070151 7f68b1fd8a80 ZSTD supported: 1
+2021/03/13-20:38:27.070155 7f68b1fd8a80 Fast CRC32 supported: Supported on x86
+2021/03/13-20:38:27.070156 7f68b1fd8a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-20:38:27.070335 7f68b1fd8a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-20:38:27.070398 7f68b1fd8a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-20:38:27.070400 7f68b1fd8a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-20:38:27.070401 7f68b1fd8a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-20:38:27.070402 7f68b1fd8a80 Options.compaction_filter: None
+2021/03/13-20:38:27.070402 7f68b1fd8a80 Options.compaction_filter_factory: None
+2021/03/13-20:38:27.070403 7f68b1fd8a80 Options.memtable_factory: SkipListFactory
+2021/03/13-20:38:27.070404 7f68b1fd8a80 Options.table_factory: BlockBasedTable
+2021/03/13-20:38:27.070423 7f68b1fd8a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fb4800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fb8600
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-20:38:27.070431 7f68b1fd8a80 Options.write_buffer_size: 134217728
+2021/03/13-20:38:27.070431 7f68b1fd8a80 Options.max_write_buffer_number: 6
+2021/03/13-20:38:27.070432 7f68b1fd8a80 Options.compression[0]: NoCompression
+2021/03/13-20:38:27.070433 7f68b1fd8a80 Options.compression[1]: NoCompression
+2021/03/13-20:38:27.070434 7f68b1fd8a80 Options.compression[2]: Snappy
+2021/03/13-20:38:27.070434 7f68b1fd8a80 Options.compression[3]: Snappy
+2021/03/13-20:38:27.070435 7f68b1fd8a80 Options.compression[4]: Snappy
+2021/03/13-20:38:27.070435 7f68b1fd8a80 Options.compression[5]: Snappy
+2021/03/13-20:38:27.070436 7f68b1fd8a80 Options.compression[6]: Snappy
+2021/03/13-20:38:27.070437 7f68b1fd8a80 Options.bottommost_compression: Disabled
+2021/03/13-20:38:27.070438 7f68b1fd8a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-20:38:27.070438 7f68b1fd8a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-20:38:27.070439 7f68b1fd8a80 Options.num_levels: 7
+2021/03/13-20:38:27.070440 7f68b1fd8a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-20:38:27.070440 7f68b1fd8a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-20:38:27.070441 7f68b1fd8a80 Options.compression_opts.window_bits: -14
+2021/03/13-20:38:27.070442 7f68b1fd8a80 Options.compression_opts.level: -1
+2021/03/13-20:38:27.070442 7f68b1fd8a80 Options.compression_opts.strategy: 0
+2021/03/13-20:38:27.070443 7f68b1fd8a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-20:38:27.070443 7f68b1fd8a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-20:38:27.070444 7f68b1fd8a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-20:38:27.070445 7f68b1fd8a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-20:38:27.070445 7f68b1fd8a80 Options.target_file_size_base: 67108864
+2021/03/13-20:38:27.070446 7f68b1fd8a80 Options.target_file_size_multiplier: 1
+2021/03/13-20:38:27.070447 7f68b1fd8a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-20:38:27.070447 7f68b1fd8a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-20:38:27.070448 7f68b1fd8a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-20:38:27.070450 7f68b1fd8a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-20:38:27.070460 7f68b1fd8a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-20:38:27.070461 7f68b1fd8a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-20:38:27.070462 7f68b1fd8a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-20:38:27.070462 7f68b1fd8a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-20:38:27.070463 7f68b1fd8a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-20:38:27.070464 7f68b1fd8a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-20:38:27.070464 7f68b1fd8a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-20:38:27.070465 7f68b1fd8a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-20:38:27.070466 7f68b1fd8a80 Options.arena_block_size: 16777216
+2021/03/13-20:38:27.070466 7f68b1fd8a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-20:38:27.070467 7f68b1fd8a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-20:38:27.070467 7f68b1fd8a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-20:38:27.070468 7f68b1fd8a80 Options.disable_auto_compactions: 0
+2021/03/13-20:38:27.070470 7f68b1fd8a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-20:38:27.070471 7f68b1fd8a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-20:38:27.070471 7f68b1fd8a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-20:38:27.070472 7f68b1fd8a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-20:38:27.070473 7f68b1fd8a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-20:38:27.070473 7f68b1fd8a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-20:38:27.070474 7f68b1fd8a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-20:38:27.070475 7f68b1fd8a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-20:38:27.070476 7f68b1fd8a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-20:38:27.070476 7f68b1fd8a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-20:38:27.070477 7f68b1fd8a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-20:38:27.070478 7f68b1fd8a80 Options.table_properties_collectors:
+2021/03/13-20:38:27.070478 7f68b1fd8a80 Options.inplace_update_support: 0
+2021/03/13-20:38:27.070479 7f68b1fd8a80 Options.inplace_update_num_locks: 10000
+2021/03/13-20:38:27.070480 7f68b1fd8a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-20:38:27.070481 7f68b1fd8a80 Options.memtable_huge_page_size: 0
+2021/03/13-20:38:27.070481 7f68b1fd8a80 Options.bloom_locality: 0
+2021/03/13-20:38:27.070482 7f68b1fd8a80 Options.max_successive_merges: 0
+2021/03/13-20:38:27.070482 7f68b1fd8a80 Options.optimize_filters_for_hits: 0
+2021/03/13-20:38:27.070483 7f68b1fd8a80 Options.paranoid_file_checks: 0
+2021/03/13-20:38:27.070484 7f68b1fd8a80 Options.force_consistency_checks: 0
+2021/03/13-20:38:27.070484 7f68b1fd8a80 Options.report_bg_io_stats: 0
+2021/03/13-20:38:27.070979 7f68b1fd8a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-20:38:27.070982 7f68b1fd8a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-20:38:27.071055 7f68b1fd8a80 EVENT_LOG_v1 {"time_micros": 1615664307071044, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-20:38:27.071067 7f68b1fd8a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-20:38:27.741752 7f68b1fd8a80 EVENT_LOG_v1 {"time_micros": 1615664307741748, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615665745156802 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665745156802
new file mode 100644
index 0000000..82ba27b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665745156802
@@ -0,0 +1,186 @@
+2021/03/13-20:39:12.847077 7f5498be7a80 RocksDB version: 5.11.3
+2021/03/13-20:39:12.847160 7f5498be7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-20:39:12.847162 7f5498be7a80 Compile date Mar 13 2021
+2021/03/13-20:39:12.847166 7f5498be7a80 DB SUMMARY
+2021/03/13-20:39:12.847192 7f5498be7a80 CURRENT file: CURRENT
+2021/03/13-20:39:12.847193 7f5498be7a80 IDENTITY file: IDENTITY
+2021/03/13-20:39:12.847196 7f5498be7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-20:39:12.847198 7f5498be7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-20:39:12.847199 7f5498be7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-20:39:12.847201 7f5498be7a80 Options.error_if_exists: 0
+2021/03/13-20:39:12.847201 7f5498be7a80 Options.create_if_missing: 1
+2021/03/13-20:39:12.847202 7f5498be7a80 Options.paranoid_checks: 1
+2021/03/13-20:39:12.847203 7f5498be7a80 Options.env: 0x7f54995a1080
+2021/03/13-20:39:12.847204 7f5498be7a80 Options.info_log: 0x19ecad0
+2021/03/13-20:39:12.847204 7f5498be7a80 Options.max_file_opening_threads: 16
+2021/03/13-20:39:12.847205 7f5498be7a80 Options.statistics: (nil)
+2021/03/13-20:39:12.847206 7f5498be7a80 Options.use_fsync: 0
+2021/03/13-20:39:12.847207 7f5498be7a80 Options.max_log_file_size: 0
+2021/03/13-20:39:12.847207 7f5498be7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-20:39:12.847208 7f5498be7a80 Options.log_file_time_to_roll: 0
+2021/03/13-20:39:12.847209 7f5498be7a80 Options.keep_log_file_num: 1000
+2021/03/13-20:39:12.847209 7f5498be7a80 Options.recycle_log_file_num: 0
+2021/03/13-20:39:12.847210 7f5498be7a80 Options.allow_fallocate: 1
+2021/03/13-20:39:12.847211 7f5498be7a80 Options.allow_mmap_reads: 0
+2021/03/13-20:39:12.847212 7f5498be7a80 Options.allow_mmap_writes: 0
+2021/03/13-20:39:12.847212 7f5498be7a80 Options.use_direct_reads: 0
+2021/03/13-20:39:12.847213 7f5498be7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-20:39:12.847214 7f5498be7a80 Options.create_missing_column_families: 0
+2021/03/13-20:39:12.847214 7f5498be7a80 Options.db_log_dir:
+2021/03/13-20:39:12.847215 7f5498be7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-20:39:12.847216 7f5498be7a80 Options.table_cache_numshardbits: 6
+2021/03/13-20:39:12.847216 7f5498be7a80 Options.max_subcompactions: 1
+2021/03/13-20:39:12.847217 7f5498be7a80 Options.max_background_flushes: -1
+2021/03/13-20:39:12.847218 7f5498be7a80 Options.WAL_ttl_seconds: 0
+2021/03/13-20:39:12.847218 7f5498be7a80 Options.WAL_size_limit_MB: 0
+2021/03/13-20:39:12.847219 7f5498be7a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-20:39:12.847220 7f5498be7a80 Options.is_fd_close_on_exec: 1
+2021/03/13-20:39:12.847220 7f5498be7a80 Options.advise_random_on_open: 1
+2021/03/13-20:39:12.847221 7f5498be7a80 Options.db_write_buffer_size: 0
+2021/03/13-20:39:12.847222 7f5498be7a80 Options.write_buffer_manager: 0x19d4e70
+2021/03/13-20:39:12.847222 7f5498be7a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-20:39:12.847223 7f5498be7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-20:39:12.847224 7f5498be7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-20:39:12.847224 7f5498be7a80 Options.use_adaptive_mutex: 0
+2021/03/13-20:39:12.847225 7f5498be7a80 Options.rate_limiter: (nil)
+2021/03/13-20:39:12.847227 7f5498be7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-20:39:12.847236 7f5498be7a80 Options.wal_recovery_mode: 2
+2021/03/13-20:39:12.847237 7f5498be7a80 Options.enable_thread_tracking: 0
+2021/03/13-20:39:12.847249 7f5498be7a80 Options.enable_pipelined_write: 0
+2021/03/13-20:39:12.847250 7f5498be7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-20:39:12.847250 7f5498be7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-20:39:12.847251 7f5498be7a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-20:39:12.847252 7f5498be7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-20:39:12.847253 7f5498be7a80 Options.row_cache: None
+2021/03/13-20:39:12.847253 7f5498be7a80 Options.wal_filter: None
+2021/03/13-20:39:12.847254 7f5498be7a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-20:39:12.847255 7f5498be7a80 Options.allow_ingest_behind: 0
+2021/03/13-20:39:12.847255 7f5498be7a80 Options.preserve_deletes: 0
+2021/03/13-20:39:12.847256 7f5498be7a80 Options.two_write_queues: 0
+2021/03/13-20:39:12.847257 7f5498be7a80 Options.manual_wal_flush: 0
+2021/03/13-20:39:12.847258 7f5498be7a80 Options.max_background_jobs: 16
+2021/03/13-20:39:12.847259 7f5498be7a80 Options.max_background_compactions: -1
+2021/03/13-20:39:12.847260 7f5498be7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-20:39:12.847260 7f5498be7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-20:39:12.847261 7f5498be7a80 Options.delayed_write_rate : 16777216
+2021/03/13-20:39:12.847262 7f5498be7a80 Options.max_total_wal_size: 0
+2021/03/13-20:39:12.847263 7f5498be7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-20:39:12.847263 7f5498be7a80 Options.stats_dump_period_sec: 600
+2021/03/13-20:39:12.847264 7f5498be7a80 Options.max_open_files: -1
+2021/03/13-20:39:12.847265 7f5498be7a80 Options.bytes_per_sync: 0
+2021/03/13-20:39:12.847265 7f5498be7a80 Options.wal_bytes_per_sync: 0
+2021/03/13-20:39:12.847266 7f5498be7a80 Options.compaction_readahead_size: 0
+2021/03/13-20:39:12.847267 7f5498be7a80 Compression algorithms supported:
+2021/03/13-20:39:12.847267 7f5498be7a80 Snappy supported: 1
+2021/03/13-20:39:12.847268 7f5498be7a80 Zlib supported: 1
+2021/03/13-20:39:12.847269 7f5498be7a80 Bzip supported: 1
+2021/03/13-20:39:12.847269 7f5498be7a80 LZ4 supported: 1
+2021/03/13-20:39:12.847270 7f5498be7a80 ZSTDNotFinal supported: 1
+2021/03/13-20:39:12.847272 7f5498be7a80 ZSTD supported: 1
+2021/03/13-20:39:12.847276 7f5498be7a80 Fast CRC32 supported: Supported on x86
+2021/03/13-20:39:12.847278 7f5498be7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-20:39:12.847422 7f5498be7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-20:39:12.847488 7f5498be7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-20:39:12.847490 7f5498be7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-20:39:12.847491 7f5498be7a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-20:39:12.847492 7f5498be7a80 Options.compaction_filter: None
+2021/03/13-20:39:12.847492 7f5498be7a80 Options.compaction_filter_factory: None
+2021/03/13-20:39:12.847493 7f5498be7a80 Options.memtable_factory: SkipListFactory
+2021/03/13-20:39:12.847494 7f5498be7a80 Options.table_factory: BlockBasedTable
+2021/03/13-20:39:12.847513 7f5498be7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x19e4800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x19e8600
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-20:39:12.847522 7f5498be7a80 Options.write_buffer_size: 134217728
+2021/03/13-20:39:12.847523 7f5498be7a80 Options.max_write_buffer_number: 6
+2021/03/13-20:39:12.847524 7f5498be7a80 Options.compression[0]: NoCompression
+2021/03/13-20:39:12.847524 7f5498be7a80 Options.compression[1]: NoCompression
+2021/03/13-20:39:12.847525 7f5498be7a80 Options.compression[2]: Snappy
+2021/03/13-20:39:12.847526 7f5498be7a80 Options.compression[3]: Snappy
+2021/03/13-20:39:12.847527 7f5498be7a80 Options.compression[4]: Snappy
+2021/03/13-20:39:12.847527 7f5498be7a80 Options.compression[5]: Snappy
+2021/03/13-20:39:12.847528 7f5498be7a80 Options.compression[6]: Snappy
+2021/03/13-20:39:12.847529 7f5498be7a80 Options.bottommost_compression: Disabled
+2021/03/13-20:39:12.847530 7f5498be7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-20:39:12.847530 7f5498be7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-20:39:12.847531 7f5498be7a80 Options.num_levels: 7
+2021/03/13-20:39:12.847532 7f5498be7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-20:39:12.847533 7f5498be7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-20:39:12.847533 7f5498be7a80 Options.compression_opts.window_bits: -14
+2021/03/13-20:39:12.847534 7f5498be7a80 Options.compression_opts.level: -1
+2021/03/13-20:39:12.847535 7f5498be7a80 Options.compression_opts.strategy: 0
+2021/03/13-20:39:12.847535 7f5498be7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-20:39:12.847536 7f5498be7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-20:39:12.847537 7f5498be7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-20:39:12.847537 7f5498be7a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-20:39:12.847538 7f5498be7a80 Options.target_file_size_base: 67108864
+2021/03/13-20:39:12.847539 7f5498be7a80 Options.target_file_size_multiplier: 1
+2021/03/13-20:39:12.847539 7f5498be7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-20:39:12.847540 7f5498be7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-20:39:12.847541 7f5498be7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-20:39:12.847543 7f5498be7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-20:39:12.847552 7f5498be7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-20:39:12.847553 7f5498be7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-20:39:12.847554 7f5498be7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-20:39:12.847555 7f5498be7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-20:39:12.847555 7f5498be7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-20:39:12.847556 7f5498be7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-20:39:12.847557 7f5498be7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-20:39:12.847557 7f5498be7a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-20:39:12.847558 7f5498be7a80 Options.arena_block_size: 16777216
+2021/03/13-20:39:12.847559 7f5498be7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-20:39:12.847559 7f5498be7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-20:39:12.847560 7f5498be7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-20:39:12.847561 7f5498be7a80 Options.disable_auto_compactions: 0
+2021/03/13-20:39:12.847562 7f5498be7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-20:39:12.847563 7f5498be7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-20:39:12.847564 7f5498be7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-20:39:12.847565 7f5498be7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-20:39:12.847565 7f5498be7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-20:39:12.847566 7f5498be7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-20:39:12.847567 7f5498be7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-20:39:12.847568 7f5498be7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-20:39:12.847568 7f5498be7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-20:39:12.847569 7f5498be7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-20:39:12.847570 7f5498be7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-20:39:12.847570 7f5498be7a80 Options.table_properties_collectors:
+2021/03/13-20:39:12.847571 7f5498be7a80 Options.inplace_update_support: 0
+2021/03/13-20:39:12.847572 7f5498be7a80 Options.inplace_update_num_locks: 10000
+2021/03/13-20:39:12.847572 7f5498be7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-20:39:12.847573 7f5498be7a80 Options.memtable_huge_page_size: 0
+2021/03/13-20:39:12.847574 7f5498be7a80 Options.bloom_locality: 0
+2021/03/13-20:39:12.847575 7f5498be7a80 Options.max_successive_merges: 0
+2021/03/13-20:39:12.847575 7f5498be7a80 Options.optimize_filters_for_hits: 0
+2021/03/13-20:39:12.847576 7f5498be7a80 Options.paranoid_file_checks: 0
+2021/03/13-20:39:12.847577 7f5498be7a80 Options.force_consistency_checks: 0
+2021/03/13-20:39:12.847577 7f5498be7a80 Options.report_bg_io_stats: 0
+2021/03/13-20:39:12.848090 7f5498be7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-20:39:12.848093 7f5498be7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-20:39:12.848149 7f5498be7a80 EVENT_LOG_v1 {"time_micros": 1615664352848140, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-20:39:12.848156 7f5498be7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-20:39:13.554520 7f5498be7a80 EVENT_LOG_v1 {"time_micros": 1615664353554516, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615665847473289 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665847473289
new file mode 100644
index 0000000..b3f0f2a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665847473289
@@ -0,0 +1,186 @@
+2021/03/13-21:02:25.157086 7f002b4f9a80 RocksDB version: 5.11.3
+2021/03/13-21:02:25.157148 7f002b4f9a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:02:25.157149 7f002b4f9a80 Compile date Mar 13 2021
+2021/03/13-21:02:25.157152 7f002b4f9a80 DB SUMMARY
+2021/03/13-21:02:25.157175 7f002b4f9a80 CURRENT file: CURRENT
+2021/03/13-21:02:25.157176 7f002b4f9a80 IDENTITY file: IDENTITY
+2021/03/13-21:02:25.157179 7f002b4f9a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:02:25.157181 7f002b4f9a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:02:25.157182 7f002b4f9a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:02:25.157183 7f002b4f9a80 Options.error_if_exists: 0
+2021/03/13-21:02:25.157184 7f002b4f9a80 Options.create_if_missing: 1
+2021/03/13-21:02:25.157185 7f002b4f9a80 Options.paranoid_checks: 1
+2021/03/13-21:02:25.157185 7f002b4f9a80 Options.env: 0x7f002beb3080
+2021/03/13-21:02:25.157186 7f002b4f9a80 Options.info_log: 0x2e10ca0
+2021/03/13-21:02:25.157187 7f002b4f9a80 Options.max_file_opening_threads: 16
+2021/03/13-21:02:25.157187 7f002b4f9a80 Options.statistics: (nil)
+2021/03/13-21:02:25.157188 7f002b4f9a80 Options.use_fsync: 0
+2021/03/13-21:02:25.157189 7f002b4f9a80 Options.max_log_file_size: 0
+2021/03/13-21:02:25.157189 7f002b4f9a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:02:25.157190 7f002b4f9a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:02:25.157191 7f002b4f9a80 Options.keep_log_file_num: 1000
+2021/03/13-21:02:25.157191 7f002b4f9a80 Options.recycle_log_file_num: 0
+2021/03/13-21:02:25.157192 7f002b4f9a80 Options.allow_fallocate: 1
+2021/03/13-21:02:25.157193 7f002b4f9a80 Options.allow_mmap_reads: 0
+2021/03/13-21:02:25.157193 7f002b4f9a80 Options.allow_mmap_writes: 0
+2021/03/13-21:02:25.157194 7f002b4f9a80 Options.use_direct_reads: 0
+2021/03/13-21:02:25.157194 7f002b4f9a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:02:25.157195 7f002b4f9a80 Options.create_missing_column_families: 0
+2021/03/13-21:02:25.157196 7f002b4f9a80 Options.db_log_dir:
+2021/03/13-21:02:25.157196 7f002b4f9a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:02:25.157197 7f002b4f9a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:02:25.157198 7f002b4f9a80 Options.max_subcompactions: 1
+2021/03/13-21:02:25.157198 7f002b4f9a80 Options.max_background_flushes: -1
+2021/03/13-21:02:25.157199 7f002b4f9a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:02:25.157200 7f002b4f9a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:02:25.157200 7f002b4f9a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:02:25.157201 7f002b4f9a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:02:25.157201 7f002b4f9a80 Options.advise_random_on_open: 1
+2021/03/13-21:02:25.157202 7f002b4f9a80 Options.db_write_buffer_size: 0
+2021/03/13-21:02:25.157203 7f002b4f9a80 Options.write_buffer_manager: 0x2df8b90
+2021/03/13-21:02:25.157203 7f002b4f9a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:02:25.157204 7f002b4f9a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:02:25.157204 7f002b4f9a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:02:25.157205 7f002b4f9a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:02:25.157206 7f002b4f9a80 Options.rate_limiter: (nil)
+2021/03/13-21:02:25.157207 7f002b4f9a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:02:25.157215 7f002b4f9a80 Options.wal_recovery_mode: 2
+2021/03/13-21:02:25.157216 7f002b4f9a80 Options.enable_thread_tracking: 0
+2021/03/13-21:02:25.157216 7f002b4f9a80 Options.enable_pipelined_write: 0
+2021/03/13-21:02:25.157217 7f002b4f9a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:02:25.157218 7f002b4f9a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:02:25.157218 7f002b4f9a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:02:25.157219 7f002b4f9a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:02:25.157220 7f002b4f9a80 Options.row_cache: None
+2021/03/13-21:02:25.157220 7f002b4f9a80 Options.wal_filter: None
+2021/03/13-21:02:25.157221 7f002b4f9a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:02:25.157222 7f002b4f9a80 Options.allow_ingest_behind: 0
+2021/03/13-21:02:25.157222 7f002b4f9a80 Options.preserve_deletes: 0
+2021/03/13-21:02:25.157223 7f002b4f9a80 Options.two_write_queues: 0
+2021/03/13-21:02:25.157223 7f002b4f9a80 Options.manual_wal_flush: 0
+2021/03/13-21:02:25.157225 7f002b4f9a80 Options.max_background_jobs: 16
+2021/03/13-21:02:25.157225 7f002b4f9a80 Options.max_background_compactions: -1
+2021/03/13-21:02:25.157226 7f002b4f9a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:02:25.157226 7f002b4f9a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:02:25.157227 7f002b4f9a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:02:25.157228 7f002b4f9a80 Options.max_total_wal_size: 0
+2021/03/13-21:02:25.157228 7f002b4f9a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:02:25.157229 7f002b4f9a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:02:25.157230 7f002b4f9a80 Options.max_open_files: -1
+2021/03/13-21:02:25.157230 7f002b4f9a80 Options.bytes_per_sync: 0
+2021/03/13-21:02:25.157231 7f002b4f9a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:02:25.157232 7f002b4f9a80 Options.compaction_readahead_size: 0
+2021/03/13-21:02:25.157232 7f002b4f9a80 Compression algorithms supported:
+2021/03/13-21:02:25.157233 7f002b4f9a80 Snappy supported: 1
+2021/03/13-21:02:25.157233 7f002b4f9a80 Zlib supported: 1
+2021/03/13-21:02:25.157234 7f002b4f9a80 Bzip supported: 1
+2021/03/13-21:02:25.157235 7f002b4f9a80 LZ4 supported: 1
+2021/03/13-21:02:25.157235 7f002b4f9a80 ZSTDNotFinal supported: 1
+2021/03/13-21:02:25.157237 7f002b4f9a80 ZSTD supported: 1
+2021/03/13-21:02:25.157248 7f002b4f9a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:02:25.157249 7f002b4f9a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:02:25.157356 7f002b4f9a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:02:25.157411 7f002b4f9a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:02:25.157413 7f002b4f9a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:02:25.157414 7f002b4f9a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:02:25.157415 7f002b4f9a80 Options.compaction_filter: None
+2021/03/13-21:02:25.157415 7f002b4f9a80 Options.compaction_filter_factory: None
+2021/03/13-21:02:25.157416 7f002b4f9a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:02:25.157417 7f002b4f9a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:02:25.157431 7f002b4f9a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2e08520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2dedc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:02:25.157432 7f002b4f9a80 Options.write_buffer_size: 134217728
+2021/03/13-21:02:25.157433 7f002b4f9a80 Options.max_write_buffer_number: 6
+2021/03/13-21:02:25.157433 7f002b4f9a80 Options.compression[0]: NoCompression
+2021/03/13-21:02:25.157434 7f002b4f9a80 Options.compression[1]: NoCompression
+2021/03/13-21:02:25.157435 7f002b4f9a80 Options.compression[2]: Snappy
+2021/03/13-21:02:25.157436 7f002b4f9a80 Options.compression[3]: Snappy
+2021/03/13-21:02:25.157436 7f002b4f9a80 Options.compression[4]: Snappy
+2021/03/13-21:02:25.157437 7f002b4f9a80 Options.compression[5]: Snappy
+2021/03/13-21:02:25.157437 7f002b4f9a80 Options.compression[6]: Snappy
+2021/03/13-21:02:25.157438 7f002b4f9a80 Options.bottommost_compression: Disabled
+2021/03/13-21:02:25.157439 7f002b4f9a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:02:25.157440 7f002b4f9a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:02:25.157440 7f002b4f9a80 Options.num_levels: 7
+2021/03/13-21:02:25.157441 7f002b4f9a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:02:25.157442 7f002b4f9a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:02:25.157442 7f002b4f9a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:02:25.157443 7f002b4f9a80 Options.compression_opts.level: -1
+2021/03/13-21:02:25.157444 7f002b4f9a80 Options.compression_opts.strategy: 0
+2021/03/13-21:02:25.157444 7f002b4f9a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:02:25.157445 7f002b4f9a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:02:25.157445 7f002b4f9a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:02:25.157446 7f002b4f9a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:02:25.157447 7f002b4f9a80 Options.target_file_size_base: 67108864
+2021/03/13-21:02:25.157447 7f002b4f9a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:02:25.157448 7f002b4f9a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:02:25.157449 7f002b4f9a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:02:25.157449 7f002b4f9a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:02:25.157451 7f002b4f9a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:02:25.157459 7f002b4f9a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:02:25.157460 7f002b4f9a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:02:25.157461 7f002b4f9a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:02:25.157461 7f002b4f9a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:02:25.157462 7f002b4f9a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:02:25.157463 7f002b4f9a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:02:25.157463 7f002b4f9a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:02:25.157464 7f002b4f9a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:02:25.157464 7f002b4f9a80 Options.arena_block_size: 16777216
+2021/03/13-21:02:25.157465 7f002b4f9a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:02:25.157466 7f002b4f9a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:02:25.157466 7f002b4f9a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:02:25.157467 7f002b4f9a80 Options.disable_auto_compactions: 0
+2021/03/13-21:02:25.157468 7f002b4f9a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:02:25.157469 7f002b4f9a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:02:25.157470 7f002b4f9a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:02:25.157470 7f002b4f9a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:02:25.157471 7f002b4f9a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:02:25.157472 7f002b4f9a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:02:25.157472 7f002b4f9a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:02:25.157473 7f002b4f9a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:02:25.157474 7f002b4f9a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:02:25.157474 7f002b4f9a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:02:25.157475 7f002b4f9a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:02:25.157476 7f002b4f9a80 Options.table_properties_collectors:
+2021/03/13-21:02:25.157476 7f002b4f9a80 Options.inplace_update_support: 0
+2021/03/13-21:02:25.157477 7f002b4f9a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:02:25.157478 7f002b4f9a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:02:25.157479 7f002b4f9a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:02:25.157479 7f002b4f9a80 Options.bloom_locality: 0
+2021/03/13-21:02:25.157480 7f002b4f9a80 Options.max_successive_merges: 0
+2021/03/13-21:02:25.157480 7f002b4f9a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:02:25.157481 7f002b4f9a80 Options.paranoid_file_checks: 0
+2021/03/13-21:02:25.157482 7f002b4f9a80 Options.force_consistency_checks: 0
+2021/03/13-21:02:25.157482 7f002b4f9a80 Options.report_bg_io_stats: 0
+2021/03/13-21:02:25.157974 7f002b4f9a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:02:25.157978 7f002b4f9a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:02:25.158042 7f002b4f9a80 EVENT_LOG_v1 {"time_micros": 1615665745158031, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:02:25.158048 7f002b4f9a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:02:25.980256 7f002b4f9a80 EVENT_LOG_v1 {"time_micros": 1615665745980253, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615665886204213 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665886204213
new file mode 100644
index 0000000..2d6ae54
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665886204213
@@ -0,0 +1,186 @@
+2021/03/13-21:04:07.473562 7f615261aa80 RocksDB version: 5.11.3
+2021/03/13-21:04:07.473624 7f615261aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:04:07.473626 7f615261aa80 Compile date Mar 13 2021
+2021/03/13-21:04:07.473628 7f615261aa80 DB SUMMARY
+2021/03/13-21:04:07.473652 7f615261aa80 CURRENT file: CURRENT
+2021/03/13-21:04:07.473653 7f615261aa80 IDENTITY file: IDENTITY
+2021/03/13-21:04:07.473656 7f615261aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:04:07.473657 7f615261aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:04:07.473658 7f615261aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:04:07.473660 7f615261aa80 Options.error_if_exists: 0
+2021/03/13-21:04:07.473660 7f615261aa80 Options.create_if_missing: 1
+2021/03/13-21:04:07.473661 7f615261aa80 Options.paranoid_checks: 1
+2021/03/13-21:04:07.473662 7f615261aa80 Options.env: 0x7f6152fd4080
+2021/03/13-21:04:07.473662 7f615261aa80 Options.info_log: 0x1104ca0
+2021/03/13-21:04:07.473663 7f615261aa80 Options.max_file_opening_threads: 16
+2021/03/13-21:04:07.473664 7f615261aa80 Options.statistics: (nil)
+2021/03/13-21:04:07.473664 7f615261aa80 Options.use_fsync: 0
+2021/03/13-21:04:07.473665 7f615261aa80 Options.max_log_file_size: 0
+2021/03/13-21:04:07.473666 7f615261aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:04:07.473666 7f615261aa80 Options.log_file_time_to_roll: 0
+2021/03/13-21:04:07.473667 7f615261aa80 Options.keep_log_file_num: 1000
+2021/03/13-21:04:07.473668 7f615261aa80 Options.recycle_log_file_num: 0
+2021/03/13-21:04:07.473668 7f615261aa80 Options.allow_fallocate: 1
+2021/03/13-21:04:07.473669 7f615261aa80 Options.allow_mmap_reads: 0
+2021/03/13-21:04:07.473670 7f615261aa80 Options.allow_mmap_writes: 0
+2021/03/13-21:04:07.473670 7f615261aa80 Options.use_direct_reads: 0
+2021/03/13-21:04:07.473671 7f615261aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:04:07.473671 7f615261aa80 Options.create_missing_column_families: 0
+2021/03/13-21:04:07.473672 7f615261aa80 Options.db_log_dir:
+2021/03/13-21:04:07.473673 7f615261aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:04:07.473673 7f615261aa80 Options.table_cache_numshardbits: 6
+2021/03/13-21:04:07.473674 7f615261aa80 Options.max_subcompactions: 1
+2021/03/13-21:04:07.473675 7f615261aa80 Options.max_background_flushes: -1
+2021/03/13-21:04:07.473675 7f615261aa80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:04:07.473676 7f615261aa80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:04:07.473677 7f615261aa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:04:07.473677 7f615261aa80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:04:07.473678 7f615261aa80 Options.advise_random_on_open: 1
+2021/03/13-21:04:07.473678 7f615261aa80 Options.db_write_buffer_size: 0
+2021/03/13-21:04:07.473679 7f615261aa80 Options.write_buffer_manager: 0x10ecb90
+2021/03/13-21:04:07.473680 7f615261aa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:04:07.473680 7f615261aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:04:07.473681 7f615261aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:04:07.473682 7f615261aa80 Options.use_adaptive_mutex: 0
+2021/03/13-21:04:07.473682 7f615261aa80 Options.rate_limiter: (nil)
+2021/03/13-21:04:07.473683 7f615261aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:04:07.473691 7f615261aa80 Options.wal_recovery_mode: 2
+2021/03/13-21:04:07.473692 7f615261aa80 Options.enable_thread_tracking: 0
+2021/03/13-21:04:07.473692 7f615261aa80 Options.enable_pipelined_write: 0
+2021/03/13-21:04:07.473693 7f615261aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:04:07.473694 7f615261aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:04:07.473694 7f615261aa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:04:07.473695 7f615261aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:04:07.473696 7f615261aa80 Options.row_cache: None
+2021/03/13-21:04:07.473696 7f615261aa80 Options.wal_filter: None
+2021/03/13-21:04:07.473697 7f615261aa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:04:07.473698 7f615261aa80 Options.allow_ingest_behind: 0
+2021/03/13-21:04:07.473698 7f615261aa80 Options.preserve_deletes: 0
+2021/03/13-21:04:07.473699 7f615261aa80 Options.two_write_queues: 0
+2021/03/13-21:04:07.473699 7f615261aa80 Options.manual_wal_flush: 0
+2021/03/13-21:04:07.473701 7f615261aa80 Options.max_background_jobs: 16
+2021/03/13-21:04:07.473701 7f615261aa80 Options.max_background_compactions: -1
+2021/03/13-21:04:07.473702 7f615261aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:04:07.473702 7f615261aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:04:07.473703 7f615261aa80 Options.delayed_write_rate : 16777216
+2021/03/13-21:04:07.473704 7f615261aa80 Options.max_total_wal_size: 0
+2021/03/13-21:04:07.473704 7f615261aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:04:07.473705 7f615261aa80 Options.stats_dump_period_sec: 600
+2021/03/13-21:04:07.473706 7f615261aa80 Options.max_open_files: -1
+2021/03/13-21:04:07.473706 7f615261aa80 Options.bytes_per_sync: 0
+2021/03/13-21:04:07.473707 7f615261aa80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:04:07.473707 7f615261aa80 Options.compaction_readahead_size: 0
+2021/03/13-21:04:07.473708 7f615261aa80 Compression algorithms supported:
+2021/03/13-21:04:07.473709 7f615261aa80 Snappy supported: 1
+2021/03/13-21:04:07.473709 7f615261aa80 Zlib supported: 1
+2021/03/13-21:04:07.473710 7f615261aa80 Bzip supported: 1
+2021/03/13-21:04:07.473711 7f615261aa80 LZ4 supported: 1
+2021/03/13-21:04:07.473711 7f615261aa80 ZSTDNotFinal supported: 1
+2021/03/13-21:04:07.473713 7f615261aa80 ZSTD supported: 1
+2021/03/13-21:04:07.473716 7f615261aa80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:04:07.473717 7f615261aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:04:07.473836 7f615261aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:04:07.473888 7f615261aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:04:07.473890 7f615261aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:04:07.473891 7f615261aa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:04:07.473891 7f615261aa80 Options.compaction_filter: None
+2021/03/13-21:04:07.473892 7f615261aa80 Options.compaction_filter_factory: None
+2021/03/13-21:04:07.473893 7f615261aa80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:04:07.473893 7f615261aa80 Options.table_factory: BlockBasedTable
+2021/03/13-21:04:07.473908 7f615261aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10fc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x10e1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:04:07.473909 7f615261aa80 Options.write_buffer_size: 134217728
+2021/03/13-21:04:07.473909 7f615261aa80 Options.max_write_buffer_number: 6
+2021/03/13-21:04:07.473910 7f615261aa80 Options.compression[0]: NoCompression
+2021/03/13-21:04:07.473911 7f615261aa80 Options.compression[1]: NoCompression
+2021/03/13-21:04:07.473912 7f615261aa80 Options.compression[2]: Snappy
+2021/03/13-21:04:07.473912 7f615261aa80 Options.compression[3]: Snappy
+2021/03/13-21:04:07.473913 7f615261aa80 Options.compression[4]: Snappy
+2021/03/13-21:04:07.473914 7f615261aa80 Options.compression[5]: Snappy
+2021/03/13-21:04:07.473914 7f615261aa80 Options.compression[6]: Snappy
+2021/03/13-21:04:07.473915 7f615261aa80 Options.bottommost_compression: Disabled
+2021/03/13-21:04:07.473916 7f615261aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:04:07.473916 7f615261aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:04:07.473917 7f615261aa80 Options.num_levels: 7
+2021/03/13-21:04:07.473918 7f615261aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:04:07.473918 7f615261aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:04:07.473919 7f615261aa80 Options.compression_opts.window_bits: -14
+2021/03/13-21:04:07.473920 7f615261aa80 Options.compression_opts.level: -1
+2021/03/13-21:04:07.473920 7f615261aa80 Options.compression_opts.strategy: 0
+2021/03/13-21:04:07.473921 7f615261aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:04:07.473922 7f615261aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:04:07.473922 7f615261aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:04:07.473923 7f615261aa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:04:07.473923 7f615261aa80 Options.target_file_size_base: 67108864
+2021/03/13-21:04:07.473924 7f615261aa80 Options.target_file_size_multiplier: 1
+2021/03/13-21:04:07.473925 7f615261aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:04:07.473926 7f615261aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:04:07.473926 7f615261aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:04:07.473928 7f615261aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:04:07.473936 7f615261aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:04:07.473936 7f615261aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:04:07.473937 7f615261aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:04:07.473938 7f615261aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:04:07.473938 7f615261aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:04:07.473939 7f615261aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:04:07.473940 7f615261aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:04:07.473940 7f615261aa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:04:07.473941 7f615261aa80 Options.arena_block_size: 16777216
+2021/03/13-21:04:07.473941 7f615261aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:04:07.473942 7f615261aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:04:07.473943 7f615261aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:04:07.473943 7f615261aa80 Options.disable_auto_compactions: 0
+2021/03/13-21:04:07.473944 7f615261aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:04:07.473945 7f615261aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:04:07.473946 7f615261aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:04:07.473946 7f615261aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:04:07.473947 7f615261aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:04:07.473948 7f615261aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:04:07.473948 7f615261aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:04:07.473949 7f615261aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:04:07.473950 7f615261aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:04:07.473950 7f615261aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:04:07.473951 7f615261aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:04:07.473952 7f615261aa80 Options.table_properties_collectors:
+2021/03/13-21:04:07.473952 7f615261aa80 Options.inplace_update_support: 0
+2021/03/13-21:04:07.473953 7f615261aa80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:04:07.473954 7f615261aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:04:07.473954 7f615261aa80 Options.memtable_huge_page_size: 0
+2021/03/13-21:04:07.473955 7f615261aa80 Options.bloom_locality: 0
+2021/03/13-21:04:07.473956 7f615261aa80 Options.max_successive_merges: 0
+2021/03/13-21:04:07.473956 7f615261aa80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:04:07.473957 7f615261aa80 Options.paranoid_file_checks: 0
+2021/03/13-21:04:07.473957 7f615261aa80 Options.force_consistency_checks: 0
+2021/03/13-21:04:07.473958 7f615261aa80 Options.report_bg_io_stats: 0
+2021/03/13-21:04:07.474381 7f615261aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:04:07.474384 7f615261aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:04:07.474438 7f615261aa80 EVENT_LOG_v1 {"time_micros": 1615665847474430, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:04:07.474443 7f615261aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:04:08.165705 7f615261aa80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615665937600457 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665937600457
new file mode 100644
index 0000000..b17a222
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665937600457
@@ -0,0 +1,186 @@
+2021/03/13-21:04:46.204517 7f02ebcc2a80 RocksDB version: 5.11.3
+2021/03/13-21:04:46.204579 7f02ebcc2a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:04:46.204581 7f02ebcc2a80 Compile date Mar 13 2021
+2021/03/13-21:04:46.204583 7f02ebcc2a80 DB SUMMARY
+2021/03/13-21:04:46.204607 7f02ebcc2a80 CURRENT file: CURRENT
+2021/03/13-21:04:46.204608 7f02ebcc2a80 IDENTITY file: IDENTITY
+2021/03/13-21:04:46.204611 7f02ebcc2a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:04:46.204612 7f02ebcc2a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:04:46.204613 7f02ebcc2a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:04:46.204615 7f02ebcc2a80 Options.error_if_exists: 0
+2021/03/13-21:04:46.204616 7f02ebcc2a80 Options.create_if_missing: 1
+2021/03/13-21:04:46.204616 7f02ebcc2a80 Options.paranoid_checks: 1
+2021/03/13-21:04:46.204617 7f02ebcc2a80 Options.env: 0x7f02ec67c080
+2021/03/13-21:04:46.204617 7f02ebcc2a80 Options.info_log: 0x147cca0
+2021/03/13-21:04:46.204618 7f02ebcc2a80 Options.max_file_opening_threads: 16
+2021/03/13-21:04:46.204619 7f02ebcc2a80 Options.statistics: (nil)
+2021/03/13-21:04:46.204619 7f02ebcc2a80 Options.use_fsync: 0
+2021/03/13-21:04:46.204620 7f02ebcc2a80 Options.max_log_file_size: 0
+2021/03/13-21:04:46.204621 7f02ebcc2a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:04:46.204621 7f02ebcc2a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:04:46.204622 7f02ebcc2a80 Options.keep_log_file_num: 1000
+2021/03/13-21:04:46.204623 7f02ebcc2a80 Options.recycle_log_file_num: 0
+2021/03/13-21:04:46.204623 7f02ebcc2a80 Options.allow_fallocate: 1
+2021/03/13-21:04:46.204624 7f02ebcc2a80 Options.allow_mmap_reads: 0
+2021/03/13-21:04:46.204624 7f02ebcc2a80 Options.allow_mmap_writes: 0
+2021/03/13-21:04:46.204625 7f02ebcc2a80 Options.use_direct_reads: 0
+2021/03/13-21:04:46.204626 7f02ebcc2a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:04:46.204626 7f02ebcc2a80 Options.create_missing_column_families: 0
+2021/03/13-21:04:46.204627 7f02ebcc2a80 Options.db_log_dir:
+2021/03/13-21:04:46.204627 7f02ebcc2a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:04:46.204628 7f02ebcc2a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:04:46.204629 7f02ebcc2a80 Options.max_subcompactions: 1
+2021/03/13-21:04:46.204629 7f02ebcc2a80 Options.max_background_flushes: -1
+2021/03/13-21:04:46.204630 7f02ebcc2a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:04:46.204631 7f02ebcc2a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:04:46.204631 7f02ebcc2a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:04:46.204632 7f02ebcc2a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:04:46.204632 7f02ebcc2a80 Options.advise_random_on_open: 1
+2021/03/13-21:04:46.204633 7f02ebcc2a80 Options.db_write_buffer_size: 0
+2021/03/13-21:04:46.204634 7f02ebcc2a80 Options.write_buffer_manager: 0x1464b90
+2021/03/13-21:04:46.204634 7f02ebcc2a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:04:46.204635 7f02ebcc2a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:04:46.204635 7f02ebcc2a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:04:46.204636 7f02ebcc2a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:04:46.204637 7f02ebcc2a80 Options.rate_limiter: (nil)
+2021/03/13-21:04:46.204638 7f02ebcc2a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:04:46.204648 7f02ebcc2a80 Options.wal_recovery_mode: 2
+2021/03/13-21:04:46.204649 7f02ebcc2a80 Options.enable_thread_tracking: 0
+2021/03/13-21:04:46.204650 7f02ebcc2a80 Options.enable_pipelined_write: 0
+2021/03/13-21:04:46.204652 7f02ebcc2a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:04:46.204652 7f02ebcc2a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:04:46.204653 7f02ebcc2a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:04:46.204654 7f02ebcc2a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:04:46.204655 7f02ebcc2a80 Options.row_cache: None
+2021/03/13-21:04:46.204656 7f02ebcc2a80 Options.wal_filter: None
+2021/03/13-21:04:46.204657 7f02ebcc2a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:04:46.204658 7f02ebcc2a80 Options.allow_ingest_behind: 0
+2021/03/13-21:04:46.204659 7f02ebcc2a80 Options.preserve_deletes: 0
+2021/03/13-21:04:46.204660 7f02ebcc2a80 Options.two_write_queues: 0
+2021/03/13-21:04:46.204661 7f02ebcc2a80 Options.manual_wal_flush: 0
+2021/03/13-21:04:46.204662 7f02ebcc2a80 Options.max_background_jobs: 16
+2021/03/13-21:04:46.204664 7f02ebcc2a80 Options.max_background_compactions: -1
+2021/03/13-21:04:46.204664 7f02ebcc2a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:04:46.204665 7f02ebcc2a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:04:46.204666 7f02ebcc2a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:04:46.204667 7f02ebcc2a80 Options.max_total_wal_size: 0
+2021/03/13-21:04:46.204668 7f02ebcc2a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:04:46.204669 7f02ebcc2a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:04:46.204670 7f02ebcc2a80 Options.max_open_files: -1
+2021/03/13-21:04:46.204671 7f02ebcc2a80 Options.bytes_per_sync: 0
+2021/03/13-21:04:46.204672 7f02ebcc2a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:04:46.204673 7f02ebcc2a80 Options.compaction_readahead_size: 0
+2021/03/13-21:04:46.204674 7f02ebcc2a80 Compression algorithms supported:
+2021/03/13-21:04:46.204675 7f02ebcc2a80 Snappy supported: 1
+2021/03/13-21:04:46.204676 7f02ebcc2a80 Zlib supported: 1
+2021/03/13-21:04:46.204677 7f02ebcc2a80 Bzip supported: 1
+2021/03/13-21:04:46.204678 7f02ebcc2a80 LZ4 supported: 1
+2021/03/13-21:04:46.204679 7f02ebcc2a80 ZSTDNotFinal supported: 1
+2021/03/13-21:04:46.204681 7f02ebcc2a80 ZSTD supported: 1
+2021/03/13-21:04:46.204685 7f02ebcc2a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:04:46.204687 7f02ebcc2a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:04:46.204853 7f02ebcc2a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:04:46.204928 7f02ebcc2a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:04:46.204930 7f02ebcc2a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:04:46.204932 7f02ebcc2a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:04:46.204933 7f02ebcc2a80 Options.compaction_filter: None
+2021/03/13-21:04:46.204935 7f02ebcc2a80 Options.compaction_filter_factory: None
+2021/03/13-21:04:46.204936 7f02ebcc2a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:04:46.204937 7f02ebcc2a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:04:46.204961 7f02ebcc2a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1474520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1459c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:04:46.204963 7f02ebcc2a80 Options.write_buffer_size: 134217728
+2021/03/13-21:04:46.204964 7f02ebcc2a80 Options.max_write_buffer_number: 6
+2021/03/13-21:04:46.204965 7f02ebcc2a80 Options.compression[0]: NoCompression
+2021/03/13-21:04:46.204967 7f02ebcc2a80 Options.compression[1]: NoCompression
+2021/03/13-21:04:46.204968 7f02ebcc2a80 Options.compression[2]: Snappy
+2021/03/13-21:04:46.204969 7f02ebcc2a80 Options.compression[3]: Snappy
+2021/03/13-21:04:46.204971 7f02ebcc2a80 Options.compression[4]: Snappy
+2021/03/13-21:04:46.204972 7f02ebcc2a80 Options.compression[5]: Snappy
+2021/03/13-21:04:46.204973 7f02ebcc2a80 Options.compression[6]: Snappy
+2021/03/13-21:04:46.204975 7f02ebcc2a80 Options.bottommost_compression: Disabled
+2021/03/13-21:04:46.204976 7f02ebcc2a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:04:46.204977 7f02ebcc2a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:04:46.204979 7f02ebcc2a80 Options.num_levels: 7
+2021/03/13-21:04:46.204980 7f02ebcc2a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:04:46.204981 7f02ebcc2a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:04:46.204982 7f02ebcc2a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:04:46.204984 7f02ebcc2a80 Options.compression_opts.level: -1
+2021/03/13-21:04:46.204985 7f02ebcc2a80 Options.compression_opts.strategy: 0
+2021/03/13-21:04:46.204986 7f02ebcc2a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:04:46.204987 7f02ebcc2a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:04:46.204989 7f02ebcc2a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:04:46.204990 7f02ebcc2a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:04:46.204991 7f02ebcc2a80 Options.target_file_size_base: 67108864
+2021/03/13-21:04:46.204993 7f02ebcc2a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:04:46.204994 7f02ebcc2a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:04:46.204995 7f02ebcc2a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:04:46.204996 7f02ebcc2a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:04:46.204999 7f02ebcc2a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:04:46.205010 7f02ebcc2a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:04:46.205012 7f02ebcc2a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:04:46.205013 7f02ebcc2a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:04:46.205014 7f02ebcc2a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:04:46.205016 7f02ebcc2a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:04:46.205017 7f02ebcc2a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:04:46.205018 7f02ebcc2a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:04:46.205019 7f02ebcc2a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:04:46.205021 7f02ebcc2a80 Options.arena_block_size: 16777216
+2021/03/13-21:04:46.205022 7f02ebcc2a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:04:46.205023 7f02ebcc2a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:04:46.205025 7f02ebcc2a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:04:46.205026 7f02ebcc2a80 Options.disable_auto_compactions: 0
+2021/03/13-21:04:46.205027 7f02ebcc2a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:04:46.205029 7f02ebcc2a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:04:46.205030 7f02ebcc2a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:04:46.205031 7f02ebcc2a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:04:46.205033 7f02ebcc2a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:04:46.205034 7f02ebcc2a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:04:46.205035 7f02ebcc2a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:04:46.205037 7f02ebcc2a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:04:46.205038 7f02ebcc2a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:04:46.205039 7f02ebcc2a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:04:46.205040 7f02ebcc2a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:04:46.205042 7f02ebcc2a80 Options.table_properties_collectors:
+2021/03/13-21:04:46.205043 7f02ebcc2a80 Options.inplace_update_support: 0
+2021/03/13-21:04:46.205044 7f02ebcc2a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:04:46.205045 7f02ebcc2a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:04:46.205047 7f02ebcc2a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:04:46.205048 7f02ebcc2a80 Options.bloom_locality: 0
+2021/03/13-21:04:46.205049 7f02ebcc2a80 Options.max_successive_merges: 0
+2021/03/13-21:04:46.205050 7f02ebcc2a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:04:46.205052 7f02ebcc2a80 Options.paranoid_file_checks: 0
+2021/03/13-21:04:46.205053 7f02ebcc2a80 Options.force_consistency_checks: 0
+2021/03/13-21:04:46.205054 7f02ebcc2a80 Options.report_bg_io_stats: 0
+2021/03/13-21:04:46.205587 7f02ebcc2a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:04:46.205591 7f02ebcc2a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:04:46.205661 7f02ebcc2a80 EVENT_LOG_v1 {"time_micros": 1615665886205649, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:04:46.205669 7f02ebcc2a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:04:46.912234 7f02ebcc2a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615665986219514 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665986219514
new file mode 100644
index 0000000..38deeed
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615665986219514
@@ -0,0 +1,186 @@
+2021/03/13-21:05:37.600753 7fba8f756a80 RocksDB version: 5.11.3
+2021/03/13-21:05:37.600818 7fba8f756a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:05:37.600819 7fba8f756a80 Compile date Mar 13 2021
+2021/03/13-21:05:37.600822 7fba8f756a80 DB SUMMARY
+2021/03/13-21:05:37.600847 7fba8f756a80 CURRENT file: CURRENT
+2021/03/13-21:05:37.600849 7fba8f756a80 IDENTITY file: IDENTITY
+2021/03/13-21:05:37.600852 7fba8f756a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:05:37.600853 7fba8f756a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:05:37.600854 7fba8f756a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:05:37.600855 7fba8f756a80 Options.error_if_exists: 0
+2021/03/13-21:05:37.600856 7fba8f756a80 Options.create_if_missing: 1
+2021/03/13-21:05:37.600857 7fba8f756a80 Options.paranoid_checks: 1
+2021/03/13-21:05:37.600857 7fba8f756a80 Options.env: 0x7fba90110080
+2021/03/13-21:05:37.600858 7fba8f756a80 Options.info_log: 0x18a6ca0
+2021/03/13-21:05:37.600859 7fba8f756a80 Options.max_file_opening_threads: 16
+2021/03/13-21:05:37.600859 7fba8f756a80 Options.statistics: (nil)
+2021/03/13-21:05:37.600860 7fba8f756a80 Options.use_fsync: 0
+2021/03/13-21:05:37.600861 7fba8f756a80 Options.max_log_file_size: 0
+2021/03/13-21:05:37.600861 7fba8f756a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:05:37.600862 7fba8f756a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:05:37.600863 7fba8f756a80 Options.keep_log_file_num: 1000
+2021/03/13-21:05:37.600863 7fba8f756a80 Options.recycle_log_file_num: 0
+2021/03/13-21:05:37.600864 7fba8f756a80 Options.allow_fallocate: 1
+2021/03/13-21:05:37.600865 7fba8f756a80 Options.allow_mmap_reads: 0
+2021/03/13-21:05:37.600865 7fba8f756a80 Options.allow_mmap_writes: 0
+2021/03/13-21:05:37.600866 7fba8f756a80 Options.use_direct_reads: 0
+2021/03/13-21:05:37.600867 7fba8f756a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:05:37.600867 7fba8f756a80 Options.create_missing_column_families: 0
+2021/03/13-21:05:37.600868 7fba8f756a80 Options.db_log_dir:
+2021/03/13-21:05:37.600868 7fba8f756a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:05:37.600869 7fba8f756a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:05:37.600870 7fba8f756a80 Options.max_subcompactions: 1
+2021/03/13-21:05:37.600870 7fba8f756a80 Options.max_background_flushes: -1
+2021/03/13-21:05:37.600871 7fba8f756a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:05:37.600872 7fba8f756a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:05:37.600872 7fba8f756a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:05:37.600873 7fba8f756a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:05:37.600874 7fba8f756a80 Options.advise_random_on_open: 1
+2021/03/13-21:05:37.600874 7fba8f756a80 Options.db_write_buffer_size: 0
+2021/03/13-21:05:37.600875 7fba8f756a80 Options.write_buffer_manager: 0x188eb90
+2021/03/13-21:05:37.600876 7fba8f756a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:05:37.600876 7fba8f756a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:05:37.600877 7fba8f756a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:05:37.600877 7fba8f756a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:05:37.600878 7fba8f756a80 Options.rate_limiter: (nil)
+2021/03/13-21:05:37.600879 7fba8f756a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:05:37.600888 7fba8f756a80 Options.wal_recovery_mode: 2
+2021/03/13-21:05:37.600889 7fba8f756a80 Options.enable_thread_tracking: 0
+2021/03/13-21:05:37.600889 7fba8f756a80 Options.enable_pipelined_write: 0
+2021/03/13-21:05:37.600890 7fba8f756a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:05:37.600891 7fba8f756a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:05:37.600891 7fba8f756a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:05:37.600892 7fba8f756a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:05:37.600892 7fba8f756a80 Options.row_cache: None
+2021/03/13-21:05:37.600893 7fba8f756a80 Options.wal_filter: None
+2021/03/13-21:05:37.600894 7fba8f756a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:05:37.600894 7fba8f756a80 Options.allow_ingest_behind: 0
+2021/03/13-21:05:37.600895 7fba8f756a80 Options.preserve_deletes: 0
+2021/03/13-21:05:37.600895 7fba8f756a80 Options.two_write_queues: 0
+2021/03/13-21:05:37.600896 7fba8f756a80 Options.manual_wal_flush: 0
+2021/03/13-21:05:37.600897 7fba8f756a80 Options.max_background_jobs: 16
+2021/03/13-21:05:37.600898 7fba8f756a80 Options.max_background_compactions: -1
+2021/03/13-21:05:37.600898 7fba8f756a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:05:37.600899 7fba8f756a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:05:37.600900 7fba8f756a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:05:37.600900 7fba8f756a80 Options.max_total_wal_size: 0
+2021/03/13-21:05:37.600901 7fba8f756a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:05:37.600902 7fba8f756a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:05:37.600902 7fba8f756a80 Options.max_open_files: -1
+2021/03/13-21:05:37.600903 7fba8f756a80 Options.bytes_per_sync: 0
+2021/03/13-21:05:37.600904 7fba8f756a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:05:37.600904 7fba8f756a80 Options.compaction_readahead_size: 0
+2021/03/13-21:05:37.600905 7fba8f756a80 Compression algorithms supported:
+2021/03/13-21:05:37.600905 7fba8f756a80 Snappy supported: 1
+2021/03/13-21:05:37.600906 7fba8f756a80 Zlib supported: 1
+2021/03/13-21:05:37.600907 7fba8f756a80 Bzip supported: 1
+2021/03/13-21:05:37.600907 7fba8f756a80 LZ4 supported: 1
+2021/03/13-21:05:37.600908 7fba8f756a80 ZSTDNotFinal supported: 1
+2021/03/13-21:05:37.600910 7fba8f756a80 ZSTD supported: 1
+2021/03/13-21:05:37.600913 7fba8f756a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:05:37.600914 7fba8f756a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:05:37.601037 7fba8f756a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:05:37.601091 7fba8f756a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:05:37.601093 7fba8f756a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:05:37.601094 7fba8f756a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:05:37.601095 7fba8f756a80 Options.compaction_filter: None
+2021/03/13-21:05:37.601095 7fba8f756a80 Options.compaction_filter_factory: None
+2021/03/13-21:05:37.601096 7fba8f756a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:05:37.601096 7fba8f756a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:05:37.601111 7fba8f756a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x189e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1883c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:05:37.601112 7fba8f756a80 Options.write_buffer_size: 134217728
+2021/03/13-21:05:37.601113 7fba8f756a80 Options.max_write_buffer_number: 6
+2021/03/13-21:05:37.601114 7fba8f756a80 Options.compression[0]: NoCompression
+2021/03/13-21:05:37.601114 7fba8f756a80 Options.compression[1]: NoCompression
+2021/03/13-21:05:37.601115 7fba8f756a80 Options.compression[2]: Snappy
+2021/03/13-21:05:37.601116 7fba8f756a80 Options.compression[3]: Snappy
+2021/03/13-21:05:37.601116 7fba8f756a80 Options.compression[4]: Snappy
+2021/03/13-21:05:37.601117 7fba8f756a80 Options.compression[5]: Snappy
+2021/03/13-21:05:37.601117 7fba8f756a80 Options.compression[6]: Snappy
+2021/03/13-21:05:37.601118 7fba8f756a80 Options.bottommost_compression: Disabled
+2021/03/13-21:05:37.601119 7fba8f756a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:05:37.601120 7fba8f756a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:05:37.601120 7fba8f756a80 Options.num_levels: 7
+2021/03/13-21:05:37.601121 7fba8f756a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:05:37.601122 7fba8f756a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:05:37.601122 7fba8f756a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:05:37.601123 7fba8f756a80 Options.compression_opts.level: -1
+2021/03/13-21:05:37.601124 7fba8f756a80 Options.compression_opts.strategy: 0
+2021/03/13-21:05:37.601124 7fba8f756a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:05:37.601125 7fba8f756a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:05:37.601126 7fba8f756a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:05:37.601126 7fba8f756a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:05:37.601127 7fba8f756a80 Options.target_file_size_base: 67108864
+2021/03/13-21:05:37.601128 7fba8f756a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:05:37.601128 7fba8f756a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:05:37.601129 7fba8f756a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:05:37.601129 7fba8f756a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:05:37.601131 7fba8f756a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:05:37.601140 7fba8f756a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:05:37.601141 7fba8f756a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:05:37.601141 7fba8f756a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:05:37.601142 7fba8f756a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:05:37.601143 7fba8f756a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:05:37.601143 7fba8f756a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:05:37.601144 7fba8f756a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:05:37.601144 7fba8f756a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:05:37.601145 7fba8f756a80 Options.arena_block_size: 16777216
+2021/03/13-21:05:37.601146 7fba8f756a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:05:37.601146 7fba8f756a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:05:37.601147 7fba8f756a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:05:37.601148 7fba8f756a80 Options.disable_auto_compactions: 0
+2021/03/13-21:05:37.601149 7fba8f756a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:05:37.601149 7fba8f756a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:05:37.601150 7fba8f756a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:05:37.601151 7fba8f756a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:05:37.601151 7fba8f756a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:05:37.601152 7fba8f756a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:05:37.601153 7fba8f756a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:05:37.601153 7fba8f756a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:05:37.601154 7fba8f756a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:05:37.601155 7fba8f756a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:05:37.601155 7fba8f756a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:05:37.601156 7fba8f756a80 Options.table_properties_collectors:
+2021/03/13-21:05:37.601157 7fba8f756a80 Options.inplace_update_support: 0
+2021/03/13-21:05:37.601157 7fba8f756a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:05:37.601158 7fba8f756a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:05:37.601159 7fba8f756a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:05:37.601159 7fba8f756a80 Options.bloom_locality: 0
+2021/03/13-21:05:37.601160 7fba8f756a80 Options.max_successive_merges: 0
+2021/03/13-21:05:37.601161 7fba8f756a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:05:37.601161 7fba8f756a80 Options.paranoid_file_checks: 0
+2021/03/13-21:05:37.601162 7fba8f756a80 Options.force_consistency_checks: 0
+2021/03/13-21:05:37.601163 7fba8f756a80 Options.report_bg_io_stats: 0
+2021/03/13-21:05:37.601601 7fba8f756a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:05:37.601604 7fba8f756a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:05:37.601659 7fba8f756a80 EVENT_LOG_v1 {"time_micros": 1615665937601650, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:05:37.601665 7fba8f756a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:05:38.304523 7fba8f756a80 EVENT_LOG_v1 {"time_micros": 1615665938304520, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666076517361 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666076517361
new file mode 100644
index 0000000..30c45dd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666076517361
@@ -0,0 +1,186 @@
+2021/03/13-21:06:26.219805 7f598b1aba80 RocksDB version: 5.11.3
+2021/03/13-21:06:26.219870 7f598b1aba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:06:26.219872 7f598b1aba80 Compile date Mar 13 2021
+2021/03/13-21:06:26.219874 7f598b1aba80 DB SUMMARY
+2021/03/13-21:06:26.219900 7f598b1aba80 CURRENT file: CURRENT
+2021/03/13-21:06:26.219901 7f598b1aba80 IDENTITY file: IDENTITY
+2021/03/13-21:06:26.219904 7f598b1aba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:06:26.219905 7f598b1aba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:06:26.219906 7f598b1aba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:06:26.219908 7f598b1aba80 Options.error_if_exists: 0
+2021/03/13-21:06:26.219909 7f598b1aba80 Options.create_if_missing: 1
+2021/03/13-21:06:26.219909 7f598b1aba80 Options.paranoid_checks: 1
+2021/03/13-21:06:26.219910 7f598b1aba80 Options.env: 0x7f598bb65080
+2021/03/13-21:06:26.219911 7f598b1aba80 Options.info_log: 0x2448ca0
+2021/03/13-21:06:26.219911 7f598b1aba80 Options.max_file_opening_threads: 16
+2021/03/13-21:06:26.219912 7f598b1aba80 Options.statistics: (nil)
+2021/03/13-21:06:26.219913 7f598b1aba80 Options.use_fsync: 0
+2021/03/13-21:06:26.219913 7f598b1aba80 Options.max_log_file_size: 0
+2021/03/13-21:06:26.219914 7f598b1aba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:06:26.219915 7f598b1aba80 Options.log_file_time_to_roll: 0
+2021/03/13-21:06:26.219915 7f598b1aba80 Options.keep_log_file_num: 1000
+2021/03/13-21:06:26.219916 7f598b1aba80 Options.recycle_log_file_num: 0
+2021/03/13-21:06:26.219917 7f598b1aba80 Options.allow_fallocate: 1
+2021/03/13-21:06:26.219917 7f598b1aba80 Options.allow_mmap_reads: 0
+2021/03/13-21:06:26.219918 7f598b1aba80 Options.allow_mmap_writes: 0
+2021/03/13-21:06:26.219918 7f598b1aba80 Options.use_direct_reads: 0
+2021/03/13-21:06:26.219919 7f598b1aba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:06:26.219920 7f598b1aba80 Options.create_missing_column_families: 0
+2021/03/13-21:06:26.219920 7f598b1aba80 Options.db_log_dir:
+2021/03/13-21:06:26.219921 7f598b1aba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:06:26.219922 7f598b1aba80 Options.table_cache_numshardbits: 6
+2021/03/13-21:06:26.219922 7f598b1aba80 Options.max_subcompactions: 1
+2021/03/13-21:06:26.219923 7f598b1aba80 Options.max_background_flushes: -1
+2021/03/13-21:06:26.219924 7f598b1aba80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:06:26.219924 7f598b1aba80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:06:26.219925 7f598b1aba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:06:26.219926 7f598b1aba80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:06:26.219926 7f598b1aba80 Options.advise_random_on_open: 1
+2021/03/13-21:06:26.219927 7f598b1aba80 Options.db_write_buffer_size: 0
+2021/03/13-21:06:26.219927 7f598b1aba80 Options.write_buffer_manager: 0x2430b90
+2021/03/13-21:06:26.219928 7f598b1aba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:06:26.219929 7f598b1aba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:06:26.219929 7f598b1aba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:06:26.219930 7f598b1aba80 Options.use_adaptive_mutex: 0
+2021/03/13-21:06:26.219931 7f598b1aba80 Options.rate_limiter: (nil)
+2021/03/13-21:06:26.219932 7f598b1aba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:06:26.219940 7f598b1aba80 Options.wal_recovery_mode: 2
+2021/03/13-21:06:26.219941 7f598b1aba80 Options.enable_thread_tracking: 0
+2021/03/13-21:06:26.219941 7f598b1aba80 Options.enable_pipelined_write: 0
+2021/03/13-21:06:26.219942 7f598b1aba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:06:26.219942 7f598b1aba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:06:26.219943 7f598b1aba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:06:26.219944 7f598b1aba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:06:26.219944 7f598b1aba80 Options.row_cache: None
+2021/03/13-21:06:26.219945 7f598b1aba80 Options.wal_filter: None
+2021/03/13-21:06:26.219946 7f598b1aba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:06:26.219946 7f598b1aba80 Options.allow_ingest_behind: 0
+2021/03/13-21:06:26.219947 7f598b1aba80 Options.preserve_deletes: 0
+2021/03/13-21:06:26.219947 7f598b1aba80 Options.two_write_queues: 0
+2021/03/13-21:06:26.219948 7f598b1aba80 Options.manual_wal_flush: 0
+2021/03/13-21:06:26.219949 7f598b1aba80 Options.max_background_jobs: 16
+2021/03/13-21:06:26.219950 7f598b1aba80 Options.max_background_compactions: -1
+2021/03/13-21:06:26.219951 7f598b1aba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:06:26.219951 7f598b1aba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:06:26.219952 7f598b1aba80 Options.delayed_write_rate : 16777216
+2021/03/13-21:06:26.219952 7f598b1aba80 Options.max_total_wal_size: 0
+2021/03/13-21:06:26.219953 7f598b1aba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:06:26.219954 7f598b1aba80 Options.stats_dump_period_sec: 600
+2021/03/13-21:06:26.219954 7f598b1aba80 Options.max_open_files: -1
+2021/03/13-21:06:26.219955 7f598b1aba80 Options.bytes_per_sync: 0
+2021/03/13-21:06:26.219956 7f598b1aba80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:06:26.219956 7f598b1aba80 Options.compaction_readahead_size: 0
+2021/03/13-21:06:26.219957 7f598b1aba80 Compression algorithms supported:
+2021/03/13-21:06:26.219958 7f598b1aba80 Snappy supported: 1
+2021/03/13-21:06:26.219958 7f598b1aba80 Zlib supported: 1
+2021/03/13-21:06:26.219959 7f598b1aba80 Bzip supported: 1
+2021/03/13-21:06:26.219959 7f598b1aba80 LZ4 supported: 1
+2021/03/13-21:06:26.219960 7f598b1aba80 ZSTDNotFinal supported: 1
+2021/03/13-21:06:26.219962 7f598b1aba80 ZSTD supported: 1
+2021/03/13-21:06:26.219965 7f598b1aba80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:06:26.219966 7f598b1aba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:06:26.220067 7f598b1aba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:06:26.220121 7f598b1aba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:06:26.220123 7f598b1aba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:06:26.220123 7f598b1aba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:06:26.220124 7f598b1aba80 Options.compaction_filter: None
+2021/03/13-21:06:26.220125 7f598b1aba80 Options.compaction_filter_factory: None
+2021/03/13-21:06:26.220125 7f598b1aba80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:06:26.220126 7f598b1aba80 Options.table_factory: BlockBasedTable
+2021/03/13-21:06:26.220140 7f598b1aba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2440520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2425c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:06:26.220141 7f598b1aba80 Options.write_buffer_size: 134217728
+2021/03/13-21:06:26.220142 7f598b1aba80 Options.max_write_buffer_number: 6
+2021/03/13-21:06:26.220143 7f598b1aba80 Options.compression[0]: NoCompression
+2021/03/13-21:06:26.220144 7f598b1aba80 Options.compression[1]: NoCompression
+2021/03/13-21:06:26.220144 7f598b1aba80 Options.compression[2]: Snappy
+2021/03/13-21:06:26.220145 7f598b1aba80 Options.compression[3]: Snappy
+2021/03/13-21:06:26.220146 7f598b1aba80 Options.compression[4]: Snappy
+2021/03/13-21:06:26.220146 7f598b1aba80 Options.compression[5]: Snappy
+2021/03/13-21:06:26.220147 7f598b1aba80 Options.compression[6]: Snappy
+2021/03/13-21:06:26.220148 7f598b1aba80 Options.bottommost_compression: Disabled
+2021/03/13-21:06:26.220148 7f598b1aba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:06:26.220149 7f598b1aba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:06:26.220150 7f598b1aba80 Options.num_levels: 7
+2021/03/13-21:06:26.220150 7f598b1aba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:06:26.220151 7f598b1aba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:06:26.220152 7f598b1aba80 Options.compression_opts.window_bits: -14
+2021/03/13-21:06:26.220152 7f598b1aba80 Options.compression_opts.level: -1
+2021/03/13-21:06:26.220153 7f598b1aba80 Options.compression_opts.strategy: 0
+2021/03/13-21:06:26.220153 7f598b1aba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:06:26.220154 7f598b1aba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:06:26.220155 7f598b1aba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:06:26.220155 7f598b1aba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:06:26.220156 7f598b1aba80 Options.target_file_size_base: 67108864
+2021/03/13-21:06:26.220157 7f598b1aba80 Options.target_file_size_multiplier: 1
+2021/03/13-21:06:26.220157 7f598b1aba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:06:26.220158 7f598b1aba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:06:26.220158 7f598b1aba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:06:26.220160 7f598b1aba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:06:26.220168 7f598b1aba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:06:26.220169 7f598b1aba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:06:26.220170 7f598b1aba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:06:26.220170 7f598b1aba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:06:26.220171 7f598b1aba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:06:26.220171 7f598b1aba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:06:26.220172 7f598b1aba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:06:26.220173 7f598b1aba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:06:26.220173 7f598b1aba80 Options.arena_block_size: 16777216
+2021/03/13-21:06:26.220174 7f598b1aba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:06:26.220175 7f598b1aba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:06:26.220175 7f598b1aba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:06:26.220176 7f598b1aba80 Options.disable_auto_compactions: 0
+2021/03/13-21:06:26.220177 7f598b1aba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:06:26.220178 7f598b1aba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:06:26.220178 7f598b1aba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:06:26.220179 7f598b1aba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:06:26.220180 7f598b1aba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:06:26.220180 7f598b1aba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:06:26.220181 7f598b1aba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:06:26.220182 7f598b1aba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:06:26.220182 7f598b1aba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:06:26.220183 7f598b1aba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:06:26.220184 7f598b1aba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:06:26.220184 7f598b1aba80 Options.table_properties_collectors:
+2021/03/13-21:06:26.220185 7f598b1aba80 Options.inplace_update_support: 0
+2021/03/13-21:06:26.220186 7f598b1aba80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:06:26.220186 7f598b1aba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:06:26.220187 7f598b1aba80 Options.memtable_huge_page_size: 0
+2021/03/13-21:06:26.220188 7f598b1aba80 Options.bloom_locality: 0
+2021/03/13-21:06:26.220188 7f598b1aba80 Options.max_successive_merges: 0
+2021/03/13-21:06:26.220189 7f598b1aba80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:06:26.220190 7f598b1aba80 Options.paranoid_file_checks: 0
+2021/03/13-21:06:26.220190 7f598b1aba80 Options.force_consistency_checks: 0
+2021/03/13-21:06:26.220191 7f598b1aba80 Options.report_bg_io_stats: 0
+2021/03/13-21:06:26.220621 7f598b1aba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:06:26.220624 7f598b1aba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:06:26.220683 7f598b1aba80 EVENT_LOG_v1 {"time_micros": 1615665986220674, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:06:26.220689 7f598b1aba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:06:26.910789 7f598b1aba80 EVENT_LOG_v1 {"time_micros": 1615665986910786, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666291599681 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666291599681
new file mode 100644
index 0000000..2de49d7
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666291599681
@@ -0,0 +1,186 @@
+2021/03/13-21:07:56.517654 7f8b06eb7a80 RocksDB version: 5.11.3
+2021/03/13-21:07:56.517720 7f8b06eb7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:07:56.517722 7f8b06eb7a80 Compile date Mar 13 2021
+2021/03/13-21:07:56.517724 7f8b06eb7a80 DB SUMMARY
+2021/03/13-21:07:56.517751 7f8b06eb7a80 CURRENT file: CURRENT
+2021/03/13-21:07:56.517752 7f8b06eb7a80 IDENTITY file: IDENTITY
+2021/03/13-21:07:56.517755 7f8b06eb7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:07:56.517756 7f8b06eb7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:07:56.517757 7f8b06eb7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:07:56.517759 7f8b06eb7a80 Options.error_if_exists: 0
+2021/03/13-21:07:56.517760 7f8b06eb7a80 Options.create_if_missing: 1
+2021/03/13-21:07:56.517760 7f8b06eb7a80 Options.paranoid_checks: 1
+2021/03/13-21:07:56.517761 7f8b06eb7a80 Options.env: 0x7f8b07871080
+2021/03/13-21:07:56.517762 7f8b06eb7a80 Options.info_log: 0x2faeca0
+2021/03/13-21:07:56.517763 7f8b06eb7a80 Options.max_file_opening_threads: 16
+2021/03/13-21:07:56.517763 7f8b06eb7a80 Options.statistics: (nil)
+2021/03/13-21:07:56.517764 7f8b06eb7a80 Options.use_fsync: 0
+2021/03/13-21:07:56.517765 7f8b06eb7a80 Options.max_log_file_size: 0
+2021/03/13-21:07:56.517765 7f8b06eb7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:07:56.517766 7f8b06eb7a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:07:56.517767 7f8b06eb7a80 Options.keep_log_file_num: 1000
+2021/03/13-21:07:56.517767 7f8b06eb7a80 Options.recycle_log_file_num: 0
+2021/03/13-21:07:56.517768 7f8b06eb7a80 Options.allow_fallocate: 1
+2021/03/13-21:07:56.517769 7f8b06eb7a80 Options.allow_mmap_reads: 0
+2021/03/13-21:07:56.517769 7f8b06eb7a80 Options.allow_mmap_writes: 0
+2021/03/13-21:07:56.517770 7f8b06eb7a80 Options.use_direct_reads: 0
+2021/03/13-21:07:56.517770 7f8b06eb7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:07:56.517771 7f8b06eb7a80 Options.create_missing_column_families: 0
+2021/03/13-21:07:56.517772 7f8b06eb7a80 Options.db_log_dir:
+2021/03/13-21:07:56.517772 7f8b06eb7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:07:56.517773 7f8b06eb7a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:07:56.517774 7f8b06eb7a80 Options.max_subcompactions: 1
+2021/03/13-21:07:56.517774 7f8b06eb7a80 Options.max_background_flushes: -1
+2021/03/13-21:07:56.517775 7f8b06eb7a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:07:56.517776 7f8b06eb7a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:07:56.517776 7f8b06eb7a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:07:56.517777 7f8b06eb7a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:07:56.517778 7f8b06eb7a80 Options.advise_random_on_open: 1
+2021/03/13-21:07:56.517778 7f8b06eb7a80 Options.db_write_buffer_size: 0
+2021/03/13-21:07:56.517779 7f8b06eb7a80 Options.write_buffer_manager: 0x2f96b90
+2021/03/13-21:07:56.517780 7f8b06eb7a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:07:56.517780 7f8b06eb7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:07:56.517781 7f8b06eb7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:07:56.517781 7f8b06eb7a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:07:56.517782 7f8b06eb7a80 Options.rate_limiter: (nil)
+2021/03/13-21:07:56.517783 7f8b06eb7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:07:56.517792 7f8b06eb7a80 Options.wal_recovery_mode: 2
+2021/03/13-21:07:56.517793 7f8b06eb7a80 Options.enable_thread_tracking: 0
+2021/03/13-21:07:56.517793 7f8b06eb7a80 Options.enable_pipelined_write: 0
+2021/03/13-21:07:56.517794 7f8b06eb7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:07:56.517795 7f8b06eb7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:07:56.517795 7f8b06eb7a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:07:56.517796 7f8b06eb7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:07:56.517797 7f8b06eb7a80 Options.row_cache: None
+2021/03/13-21:07:56.517797 7f8b06eb7a80 Options.wal_filter: None
+2021/03/13-21:07:56.517798 7f8b06eb7a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:07:56.517798 7f8b06eb7a80 Options.allow_ingest_behind: 0
+2021/03/13-21:07:56.517799 7f8b06eb7a80 Options.preserve_deletes: 0
+2021/03/13-21:07:56.517800 7f8b06eb7a80 Options.two_write_queues: 0
+2021/03/13-21:07:56.517800 7f8b06eb7a80 Options.manual_wal_flush: 0
+2021/03/13-21:07:56.517802 7f8b06eb7a80 Options.max_background_jobs: 16
+2021/03/13-21:07:56.517802 7f8b06eb7a80 Options.max_background_compactions: -1
+2021/03/13-21:07:56.517803 7f8b06eb7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:07:56.517803 7f8b06eb7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:07:56.517804 7f8b06eb7a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:07:56.517805 7f8b06eb7a80 Options.max_total_wal_size: 0
+2021/03/13-21:07:56.517805 7f8b06eb7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:07:56.517806 7f8b06eb7a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:07:56.517807 7f8b06eb7a80 Options.max_open_files: -1
+2021/03/13-21:07:56.517807 7f8b06eb7a80 Options.bytes_per_sync: 0
+2021/03/13-21:07:56.517808 7f8b06eb7a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:07:56.517809 7f8b06eb7a80 Options.compaction_readahead_size: 0
+2021/03/13-21:07:56.517809 7f8b06eb7a80 Compression algorithms supported:
+2021/03/13-21:07:56.517810 7f8b06eb7a80 Snappy supported: 1
+2021/03/13-21:07:56.517811 7f8b06eb7a80 Zlib supported: 1
+2021/03/13-21:07:56.517811 7f8b06eb7a80 Bzip supported: 1
+2021/03/13-21:07:56.517812 7f8b06eb7a80 LZ4 supported: 1
+2021/03/13-21:07:56.517812 7f8b06eb7a80 ZSTDNotFinal supported: 1
+2021/03/13-21:07:56.517814 7f8b06eb7a80 ZSTD supported: 1
+2021/03/13-21:07:56.517817 7f8b06eb7a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:07:56.517819 7f8b06eb7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:07:56.517921 7f8b06eb7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:07:56.517976 7f8b06eb7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:07:56.517978 7f8b06eb7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:07:56.517979 7f8b06eb7a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:07:56.517980 7f8b06eb7a80 Options.compaction_filter: None
+2021/03/13-21:07:56.517981 7f8b06eb7a80 Options.compaction_filter_factory: None
+2021/03/13-21:07:56.517981 7f8b06eb7a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:07:56.517982 7f8b06eb7a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:07:56.517997 7f8b06eb7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2fa6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2f8bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:07:56.517998 7f8b06eb7a80 Options.write_buffer_size: 134217728
+2021/03/13-21:07:56.517998 7f8b06eb7a80 Options.max_write_buffer_number: 6
+2021/03/13-21:07:56.517999 7f8b06eb7a80 Options.compression[0]: NoCompression
+2021/03/13-21:07:56.518000 7f8b06eb7a80 Options.compression[1]: NoCompression
+2021/03/13-21:07:56.518001 7f8b06eb7a80 Options.compression[2]: Snappy
+2021/03/13-21:07:56.518001 7f8b06eb7a80 Options.compression[3]: Snappy
+2021/03/13-21:07:56.518002 7f8b06eb7a80 Options.compression[4]: Snappy
+2021/03/13-21:07:56.518002 7f8b06eb7a80 Options.compression[5]: Snappy
+2021/03/13-21:07:56.518003 7f8b06eb7a80 Options.compression[6]: Snappy
+2021/03/13-21:07:56.518004 7f8b06eb7a80 Options.bottommost_compression: Disabled
+2021/03/13-21:07:56.518005 7f8b06eb7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:07:56.518005 7f8b06eb7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:07:56.518006 7f8b06eb7a80 Options.num_levels: 7
+2021/03/13-21:07:56.518007 7f8b06eb7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:07:56.518007 7f8b06eb7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:07:56.518008 7f8b06eb7a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:07:56.518009 7f8b06eb7a80 Options.compression_opts.level: -1
+2021/03/13-21:07:56.518009 7f8b06eb7a80 Options.compression_opts.strategy: 0
+2021/03/13-21:07:56.518010 7f8b06eb7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:07:56.518010 7f8b06eb7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:07:56.518011 7f8b06eb7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:07:56.518012 7f8b06eb7a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:07:56.518012 7f8b06eb7a80 Options.target_file_size_base: 67108864
+2021/03/13-21:07:56.518013 7f8b06eb7a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:07:56.518014 7f8b06eb7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:07:56.518014 7f8b06eb7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:07:56.518015 7f8b06eb7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:07:56.518017 7f8b06eb7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:07:56.518025 7f8b06eb7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:07:56.518026 7f8b06eb7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:07:56.518027 7f8b06eb7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:07:56.518027 7f8b06eb7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:07:56.518028 7f8b06eb7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:07:56.518029 7f8b06eb7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:07:56.518029 7f8b06eb7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:07:56.518030 7f8b06eb7a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:07:56.518030 7f8b06eb7a80 Options.arena_block_size: 16777216
+2021/03/13-21:07:56.518031 7f8b06eb7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:07:56.518032 7f8b06eb7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:07:56.518032 7f8b06eb7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:07:56.518033 7f8b06eb7a80 Options.disable_auto_compactions: 0
+2021/03/13-21:07:56.518034 7f8b06eb7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:07:56.518035 7f8b06eb7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:07:56.518036 7f8b06eb7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:07:56.518036 7f8b06eb7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:07:56.518037 7f8b06eb7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:07:56.518038 7f8b06eb7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:07:56.518038 7f8b06eb7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:07:56.518039 7f8b06eb7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:07:56.518040 7f8b06eb7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:07:56.518040 7f8b06eb7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:07:56.518041 7f8b06eb7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:07:56.518042 7f8b06eb7a80 Options.table_properties_collectors:
+2021/03/13-21:07:56.518042 7f8b06eb7a80 Options.inplace_update_support: 0
+2021/03/13-21:07:56.518043 7f8b06eb7a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:07:56.518043 7f8b06eb7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:07:56.518044 7f8b06eb7a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:07:56.518045 7f8b06eb7a80 Options.bloom_locality: 0
+2021/03/13-21:07:56.518046 7f8b06eb7a80 Options.max_successive_merges: 0
+2021/03/13-21:07:56.518046 7f8b06eb7a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:07:56.518047 7f8b06eb7a80 Options.paranoid_file_checks: 0
+2021/03/13-21:07:56.518047 7f8b06eb7a80 Options.force_consistency_checks: 0
+2021/03/13-21:07:56.518048 7f8b06eb7a80 Options.report_bg_io_stats: 0
+2021/03/13-21:07:56.518495 7f8b06eb7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:07:56.518498 7f8b06eb7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:07:56.518553 7f8b06eb7a80 EVENT_LOG_v1 {"time_micros": 1615666076518545, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:07:56.518559 7f8b06eb7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:07:57.231493 7f8b06eb7a80 EVENT_LOG_v1 {"time_micros": 1615666077231489, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666340593253 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666340593253
new file mode 100644
index 0000000..1fbb1ce
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666340593253
@@ -0,0 +1,186 @@
+2021/03/13-21:11:31.600179 7f374d8efa80 RocksDB version: 5.11.3
+2021/03/13-21:11:31.600306 7f374d8efa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:11:31.600309 7f374d8efa80 Compile date Mar 13 2021
+2021/03/13-21:11:31.600313 7f374d8efa80 DB SUMMARY
+2021/03/13-21:11:31.600355 7f374d8efa80 CURRENT file: CURRENT
+2021/03/13-21:11:31.600357 7f374d8efa80 IDENTITY file: IDENTITY
+2021/03/13-21:11:31.600362 7f374d8efa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:11:31.600364 7f374d8efa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:11:31.600365 7f374d8efa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:11:31.600368 7f374d8efa80 Options.error_if_exists: 0
+2021/03/13-21:11:31.600369 7f374d8efa80 Options.create_if_missing: 1
+2021/03/13-21:11:31.600370 7f374d8efa80 Options.paranoid_checks: 1
+2021/03/13-21:11:31.600371 7f374d8efa80 Options.env: 0x7f374e2a9080
+2021/03/13-21:11:31.600372 7f374d8efa80 Options.info_log: 0x2058ca0
+2021/03/13-21:11:31.600373 7f374d8efa80 Options.max_file_opening_threads: 16
+2021/03/13-21:11:31.600373 7f374d8efa80 Options.statistics: (nil)
+2021/03/13-21:11:31.600374 7f374d8efa80 Options.use_fsync: 0
+2021/03/13-21:11:31.600375 7f374d8efa80 Options.max_log_file_size: 0
+2021/03/13-21:11:31.600376 7f374d8efa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:11:31.600377 7f374d8efa80 Options.log_file_time_to_roll: 0
+2021/03/13-21:11:31.600378 7f374d8efa80 Options.keep_log_file_num: 1000
+2021/03/13-21:11:31.600379 7f374d8efa80 Options.recycle_log_file_num: 0
+2021/03/13-21:11:31.600380 7f374d8efa80 Options.allow_fallocate: 1
+2021/03/13-21:11:31.600381 7f374d8efa80 Options.allow_mmap_reads: 0
+2021/03/13-21:11:31.600381 7f374d8efa80 Options.allow_mmap_writes: 0
+2021/03/13-21:11:31.600382 7f374d8efa80 Options.use_direct_reads: 0
+2021/03/13-21:11:31.600383 7f374d8efa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:11:31.600384 7f374d8efa80 Options.create_missing_column_families: 0
+2021/03/13-21:11:31.600385 7f374d8efa80 Options.db_log_dir:
+2021/03/13-21:11:31.600386 7f374d8efa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:11:31.600387 7f374d8efa80 Options.table_cache_numshardbits: 6
+2021/03/13-21:11:31.600387 7f374d8efa80 Options.max_subcompactions: 1
+2021/03/13-21:11:31.600388 7f374d8efa80 Options.max_background_flushes: -1
+2021/03/13-21:11:31.600389 7f374d8efa80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:11:31.600390 7f374d8efa80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:11:31.600391 7f374d8efa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:11:31.600392 7f374d8efa80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:11:31.600393 7f374d8efa80 Options.advise_random_on_open: 1
+2021/03/13-21:11:31.600393 7f374d8efa80 Options.db_write_buffer_size: 0
+2021/03/13-21:11:31.600394 7f374d8efa80 Options.write_buffer_manager: 0x2040b90
+2021/03/13-21:11:31.600395 7f374d8efa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:11:31.600396 7f374d8efa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:11:31.600397 7f374d8efa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:11:31.600398 7f374d8efa80 Options.use_adaptive_mutex: 0
+2021/03/13-21:11:31.600399 7f374d8efa80 Options.rate_limiter: (nil)
+2021/03/13-21:11:31.600401 7f374d8efa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:11:31.600412 7f374d8efa80 Options.wal_recovery_mode: 2
+2021/03/13-21:11:31.600413 7f374d8efa80 Options.enable_thread_tracking: 0
+2021/03/13-21:11:31.600414 7f374d8efa80 Options.enable_pipelined_write: 0
+2021/03/13-21:11:31.600415 7f374d8efa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:11:31.600416 7f374d8efa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:11:31.600417 7f374d8efa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:11:31.600418 7f374d8efa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:11:31.600419 7f374d8efa80 Options.row_cache: None
+2021/03/13-21:11:31.600419 7f374d8efa80 Options.wal_filter: None
+2021/03/13-21:11:31.600420 7f374d8efa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:11:31.600421 7f374d8efa80 Options.allow_ingest_behind: 0
+2021/03/13-21:11:31.600422 7f374d8efa80 Options.preserve_deletes: 0
+2021/03/13-21:11:31.600423 7f374d8efa80 Options.two_write_queues: 0
+2021/03/13-21:11:31.600424 7f374d8efa80 Options.manual_wal_flush: 0
+2021/03/13-21:11:31.600426 7f374d8efa80 Options.max_background_jobs: 16
+2021/03/13-21:11:31.600426 7f374d8efa80 Options.max_background_compactions: -1
+2021/03/13-21:11:31.600427 7f374d8efa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:11:31.600428 7f374d8efa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:11:31.600429 7f374d8efa80 Options.delayed_write_rate : 16777216
+2021/03/13-21:11:31.600430 7f374d8efa80 Options.max_total_wal_size: 0
+2021/03/13-21:11:31.600431 7f374d8efa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:11:31.600432 7f374d8efa80 Options.stats_dump_period_sec: 600
+2021/03/13-21:11:31.600433 7f374d8efa80 Options.max_open_files: -1
+2021/03/13-21:11:31.600434 7f374d8efa80 Options.bytes_per_sync: 0
+2021/03/13-21:11:31.600434 7f374d8efa80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:11:31.600435 7f374d8efa80 Options.compaction_readahead_size: 0
+2021/03/13-21:11:31.600436 7f374d8efa80 Compression algorithms supported:
+2021/03/13-21:11:31.600437 7f374d8efa80 Snappy supported: 1
+2021/03/13-21:11:31.600438 7f374d8efa80 Zlib supported: 1
+2021/03/13-21:11:31.600439 7f374d8efa80 Bzip supported: 1
+2021/03/13-21:11:31.600440 7f374d8efa80 LZ4 supported: 1
+2021/03/13-21:11:31.600440 7f374d8efa80 ZSTDNotFinal supported: 1
+2021/03/13-21:11:31.600443 7f374d8efa80 ZSTD supported: 1
+2021/03/13-21:11:31.600448 7f374d8efa80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:11:31.600450 7f374d8efa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:11:31.600614 7f374d8efa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:11:31.600700 7f374d8efa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:11:31.600702 7f374d8efa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:11:31.600703 7f374d8efa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:11:31.600704 7f374d8efa80 Options.compaction_filter: None
+2021/03/13-21:11:31.600705 7f374d8efa80 Options.compaction_filter_factory: None
+2021/03/13-21:11:31.600706 7f374d8efa80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:11:31.600707 7f374d8efa80 Options.table_factory: BlockBasedTable
+2021/03/13-21:11:31.600729 7f374d8efa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2050520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2035c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:11:31.600730 7f374d8efa80 Options.write_buffer_size: 134217728
+2021/03/13-21:11:31.600731 7f374d8efa80 Options.max_write_buffer_number: 6
+2021/03/13-21:11:31.600732 7f374d8efa80 Options.compression[0]: NoCompression
+2021/03/13-21:11:31.600733 7f374d8efa80 Options.compression[1]: NoCompression
+2021/03/13-21:11:31.600734 7f374d8efa80 Options.compression[2]: Snappy
+2021/03/13-21:11:31.600735 7f374d8efa80 Options.compression[3]: Snappy
+2021/03/13-21:11:31.600736 7f374d8efa80 Options.compression[4]: Snappy
+2021/03/13-21:11:31.600737 7f374d8efa80 Options.compression[5]: Snappy
+2021/03/13-21:11:31.600737 7f374d8efa80 Options.compression[6]: Snappy
+2021/03/13-21:11:31.600738 7f374d8efa80 Options.bottommost_compression: Disabled
+2021/03/13-21:11:31.600739 7f374d8efa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:11:31.600740 7f374d8efa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:11:31.600741 7f374d8efa80 Options.num_levels: 7
+2021/03/13-21:11:31.600742 7f374d8efa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:11:31.600743 7f374d8efa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:11:31.600744 7f374d8efa80 Options.compression_opts.window_bits: -14
+2021/03/13-21:11:31.600745 7f374d8efa80 Options.compression_opts.level: -1
+2021/03/13-21:11:31.600746 7f374d8efa80 Options.compression_opts.strategy: 0
+2021/03/13-21:11:31.600747 7f374d8efa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:11:31.600748 7f374d8efa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:11:31.600748 7f374d8efa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:11:31.600749 7f374d8efa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:11:31.600750 7f374d8efa80 Options.target_file_size_base: 67108864
+2021/03/13-21:11:31.600751 7f374d8efa80 Options.target_file_size_multiplier: 1
+2021/03/13-21:11:31.600752 7f374d8efa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:11:31.600753 7f374d8efa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:11:31.600754 7f374d8efa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:11:31.600756 7f374d8efa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:11:31.600768 7f374d8efa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:11:31.600769 7f374d8efa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:11:31.600770 7f374d8efa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:11:31.600771 7f374d8efa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:11:31.600772 7f374d8efa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:11:31.600772 7f374d8efa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:11:31.600773 7f374d8efa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:11:31.600774 7f374d8efa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:11:31.600775 7f374d8efa80 Options.arena_block_size: 16777216
+2021/03/13-21:11:31.600776 7f374d8efa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:11:31.600777 7f374d8efa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:11:31.600778 7f374d8efa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:11:31.600779 7f374d8efa80 Options.disable_auto_compactions: 0
+2021/03/13-21:11:31.600781 7f374d8efa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:11:31.600782 7f374d8efa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:11:31.600783 7f374d8efa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:11:31.600784 7f374d8efa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:11:31.600784 7f374d8efa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:11:31.600785 7f374d8efa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:11:31.600786 7f374d8efa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:11:31.600788 7f374d8efa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:11:31.600789 7f374d8efa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:11:31.600789 7f374d8efa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:11:31.600790 7f374d8efa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:11:31.600791 7f374d8efa80 Options.table_properties_collectors:
+2021/03/13-21:11:31.600792 7f374d8efa80 Options.inplace_update_support: 0
+2021/03/13-21:11:31.600793 7f374d8efa80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:11:31.600794 7f374d8efa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:11:31.600795 7f374d8efa80 Options.memtable_huge_page_size: 0
+2021/03/13-21:11:31.600796 7f374d8efa80 Options.bloom_locality: 0
+2021/03/13-21:11:31.600797 7f374d8efa80 Options.max_successive_merges: 0
+2021/03/13-21:11:31.600798 7f374d8efa80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:11:31.600798 7f374d8efa80 Options.paranoid_file_checks: 0
+2021/03/13-21:11:31.600799 7f374d8efa80 Options.force_consistency_checks: 0
+2021/03/13-21:11:31.600800 7f374d8efa80 Options.report_bg_io_stats: 0
+2021/03/13-21:11:31.601449 7f374d8efa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:11:31.601453 7f374d8efa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:11:31.601548 7f374d8efa80 EVENT_LOG_v1 {"time_micros": 1615666291601535, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:11:31.601557 7f374d8efa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:11:32.719278 7f374d8efa80 EVENT_LOG_v1 {"time_micros": 1615666292719275, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666592113403 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666592113403
new file mode 100644
index 0000000..dab087b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666592113403
@@ -0,0 +1,186 @@
+2021/03/13-21:12:20.593553 7f1dfe451a80 RocksDB version: 5.11.3
+2021/03/13-21:12:20.593613 7f1dfe451a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:12:20.593615 7f1dfe451a80 Compile date Mar 13 2021
+2021/03/13-21:12:20.593618 7f1dfe451a80 DB SUMMARY
+2021/03/13-21:12:20.593646 7f1dfe451a80 CURRENT file: CURRENT
+2021/03/13-21:12:20.593647 7f1dfe451a80 IDENTITY file: IDENTITY
+2021/03/13-21:12:20.593651 7f1dfe451a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:12:20.593652 7f1dfe451a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:12:20.593653 7f1dfe451a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:12:20.593655 7f1dfe451a80 Options.error_if_exists: 0
+2021/03/13-21:12:20.593656 7f1dfe451a80 Options.create_if_missing: 1
+2021/03/13-21:12:20.593656 7f1dfe451a80 Options.paranoid_checks: 1
+2021/03/13-21:12:20.593657 7f1dfe451a80 Options.env: 0x7f1dfee0b080
+2021/03/13-21:12:20.593658 7f1dfe451a80 Options.info_log: 0x1f0aca0
+2021/03/13-21:12:20.593658 7f1dfe451a80 Options.max_file_opening_threads: 16
+2021/03/13-21:12:20.593659 7f1dfe451a80 Options.statistics: (nil)
+2021/03/13-21:12:20.593660 7f1dfe451a80 Options.use_fsync: 0
+2021/03/13-21:12:20.593660 7f1dfe451a80 Options.max_log_file_size: 0
+2021/03/13-21:12:20.593661 7f1dfe451a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:12:20.593662 7f1dfe451a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:12:20.593662 7f1dfe451a80 Options.keep_log_file_num: 1000
+2021/03/13-21:12:20.593663 7f1dfe451a80 Options.recycle_log_file_num: 0
+2021/03/13-21:12:20.593664 7f1dfe451a80 Options.allow_fallocate: 1
+2021/03/13-21:12:20.593664 7f1dfe451a80 Options.allow_mmap_reads: 0
+2021/03/13-21:12:20.593665 7f1dfe451a80 Options.allow_mmap_writes: 0
+2021/03/13-21:12:20.593666 7f1dfe451a80 Options.use_direct_reads: 0
+2021/03/13-21:12:20.593666 7f1dfe451a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:12:20.593667 7f1dfe451a80 Options.create_missing_column_families: 0
+2021/03/13-21:12:20.593667 7f1dfe451a80 Options.db_log_dir:
+2021/03/13-21:12:20.593668 7f1dfe451a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:12:20.593669 7f1dfe451a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:12:20.593669 7f1dfe451a80 Options.max_subcompactions: 1
+2021/03/13-21:12:20.593670 7f1dfe451a80 Options.max_background_flushes: -1
+2021/03/13-21:12:20.593671 7f1dfe451a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:12:20.593671 7f1dfe451a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:12:20.593672 7f1dfe451a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:12:20.593673 7f1dfe451a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:12:20.593673 7f1dfe451a80 Options.advise_random_on_open: 1
+2021/03/13-21:12:20.593674 7f1dfe451a80 Options.db_write_buffer_size: 0
+2021/03/13-21:12:20.593674 7f1dfe451a80 Options.write_buffer_manager: 0x1ef2b90
+2021/03/13-21:12:20.593675 7f1dfe451a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:12:20.593676 7f1dfe451a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:12:20.593676 7f1dfe451a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:12:20.593677 7f1dfe451a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:12:20.593677 7f1dfe451a80 Options.rate_limiter: (nil)
+2021/03/13-21:12:20.593679 7f1dfe451a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:12:20.593687 7f1dfe451a80 Options.wal_recovery_mode: 2
+2021/03/13-21:12:20.593687 7f1dfe451a80 Options.enable_thread_tracking: 0
+2021/03/13-21:12:20.593688 7f1dfe451a80 Options.enable_pipelined_write: 0
+2021/03/13-21:12:20.593689 7f1dfe451a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:12:20.593689 7f1dfe451a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:12:20.593690 7f1dfe451a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:12:20.593691 7f1dfe451a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:12:20.593691 7f1dfe451a80 Options.row_cache: None
+2021/03/13-21:12:20.593692 7f1dfe451a80 Options.wal_filter: None
+2021/03/13-21:12:20.593693 7f1dfe451a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:12:20.593693 7f1dfe451a80 Options.allow_ingest_behind: 0
+2021/03/13-21:12:20.593694 7f1dfe451a80 Options.preserve_deletes: 0
+2021/03/13-21:12:20.593694 7f1dfe451a80 Options.two_write_queues: 0
+2021/03/13-21:12:20.593695 7f1dfe451a80 Options.manual_wal_flush: 0
+2021/03/13-21:12:20.593696 7f1dfe451a80 Options.max_background_jobs: 16
+2021/03/13-21:12:20.593697 7f1dfe451a80 Options.max_background_compactions: -1
+2021/03/13-21:12:20.593697 7f1dfe451a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:12:20.593698 7f1dfe451a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:12:20.593699 7f1dfe451a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:12:20.593699 7f1dfe451a80 Options.max_total_wal_size: 0
+2021/03/13-21:12:20.593700 7f1dfe451a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:12:20.593701 7f1dfe451a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:12:20.593701 7f1dfe451a80 Options.max_open_files: -1
+2021/03/13-21:12:20.593702 7f1dfe451a80 Options.bytes_per_sync: 0
+2021/03/13-21:12:20.593703 7f1dfe451a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:12:20.593703 7f1dfe451a80 Options.compaction_readahead_size: 0
+2021/03/13-21:12:20.593704 7f1dfe451a80 Compression algorithms supported:
+2021/03/13-21:12:20.593704 7f1dfe451a80 Snappy supported: 1
+2021/03/13-21:12:20.593705 7f1dfe451a80 Zlib supported: 1
+2021/03/13-21:12:20.593706 7f1dfe451a80 Bzip supported: 1
+2021/03/13-21:12:20.593706 7f1dfe451a80 LZ4 supported: 1
+2021/03/13-21:12:20.593707 7f1dfe451a80 ZSTDNotFinal supported: 1
+2021/03/13-21:12:20.593709 7f1dfe451a80 ZSTD supported: 1
+2021/03/13-21:12:20.593712 7f1dfe451a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:12:20.593713 7f1dfe451a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:12:20.593815 7f1dfe451a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:12:20.593871 7f1dfe451a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:12:20.593873 7f1dfe451a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:12:20.593874 7f1dfe451a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:12:20.593875 7f1dfe451a80 Options.compaction_filter: None
+2021/03/13-21:12:20.593875 7f1dfe451a80 Options.compaction_filter_factory: None
+2021/03/13-21:12:20.593876 7f1dfe451a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:12:20.593877 7f1dfe451a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:12:20.593892 7f1dfe451a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1f02520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1ee7c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:12:20.593893 7f1dfe451a80 Options.write_buffer_size: 134217728
+2021/03/13-21:12:20.593894 7f1dfe451a80 Options.max_write_buffer_number: 6
+2021/03/13-21:12:20.593895 7f1dfe451a80 Options.compression[0]: NoCompression
+2021/03/13-21:12:20.593895 7f1dfe451a80 Options.compression[1]: NoCompression
+2021/03/13-21:12:20.593896 7f1dfe451a80 Options.compression[2]: Snappy
+2021/03/13-21:12:20.593897 7f1dfe451a80 Options.compression[3]: Snappy
+2021/03/13-21:12:20.593897 7f1dfe451a80 Options.compression[4]: Snappy
+2021/03/13-21:12:20.593898 7f1dfe451a80 Options.compression[5]: Snappy
+2021/03/13-21:12:20.593898 7f1dfe451a80 Options.compression[6]: Snappy
+2021/03/13-21:12:20.593899 7f1dfe451a80 Options.bottommost_compression: Disabled
+2021/03/13-21:12:20.593900 7f1dfe451a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:12:20.593901 7f1dfe451a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:12:20.593901 7f1dfe451a80 Options.num_levels: 7
+2021/03/13-21:12:20.593902 7f1dfe451a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:12:20.593903 7f1dfe451a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:12:20.593903 7f1dfe451a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:12:20.593904 7f1dfe451a80 Options.compression_opts.level: -1
+2021/03/13-21:12:20.593904 7f1dfe451a80 Options.compression_opts.strategy: 0
+2021/03/13-21:12:20.593905 7f1dfe451a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:12:20.593906 7f1dfe451a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:12:20.593906 7f1dfe451a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:12:20.593907 7f1dfe451a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:12:20.593908 7f1dfe451a80 Options.target_file_size_base: 67108864
+2021/03/13-21:12:20.593908 7f1dfe451a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:12:20.593909 7f1dfe451a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:12:20.593910 7f1dfe451a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:12:20.593910 7f1dfe451a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:12:20.593912 7f1dfe451a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:12:20.593920 7f1dfe451a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:12:20.593921 7f1dfe451a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:12:20.593922 7f1dfe451a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:12:20.593922 7f1dfe451a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:12:20.593923 7f1dfe451a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:12:20.593923 7f1dfe451a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:12:20.593924 7f1dfe451a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:12:20.593925 7f1dfe451a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:12:20.593925 7f1dfe451a80 Options.arena_block_size: 16777216
+2021/03/13-21:12:20.593926 7f1dfe451a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:12:20.593927 7f1dfe451a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:12:20.593927 7f1dfe451a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:12:20.593928 7f1dfe451a80 Options.disable_auto_compactions: 0
+2021/03/13-21:12:20.593929 7f1dfe451a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:12:20.593930 7f1dfe451a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:12:20.593930 7f1dfe451a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:12:20.593931 7f1dfe451a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:12:20.593932 7f1dfe451a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:12:20.593932 7f1dfe451a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:12:20.593933 7f1dfe451a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:12:20.593934 7f1dfe451a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:12:20.593934 7f1dfe451a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:12:20.593935 7f1dfe451a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:12:20.593936 7f1dfe451a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:12:20.593936 7f1dfe451a80 Options.table_properties_collectors:
+2021/03/13-21:12:20.593937 7f1dfe451a80 Options.inplace_update_support: 0
+2021/03/13-21:12:20.593938 7f1dfe451a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:12:20.593938 7f1dfe451a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:12:20.593939 7f1dfe451a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:12:20.593940 7f1dfe451a80 Options.bloom_locality: 0
+2021/03/13-21:12:20.593940 7f1dfe451a80 Options.max_successive_merges: 0
+2021/03/13-21:12:20.593941 7f1dfe451a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:12:20.593942 7f1dfe451a80 Options.paranoid_file_checks: 0
+2021/03/13-21:12:20.593942 7f1dfe451a80 Options.force_consistency_checks: 0
+2021/03/13-21:12:20.593943 7f1dfe451a80 Options.report_bg_io_stats: 0
+2021/03/13-21:12:20.594453 7f1dfe451a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:12:20.594457 7f1dfe451a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:12:20.594518 7f1dfe451a80 EVENT_LOG_v1 {"time_micros": 1615666340594509, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:12:20.594524 7f1dfe451a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:12:21.290609 7f1dfe451a80 EVENT_LOG_v1 {"time_micros": 1615666341290605, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666592813471 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666592813471
new file mode 100644
index 0000000..23bf24e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666592813471
@@ -0,0 +1,186 @@
+2021/03/13-21:16:32.113721 7feafd080a80 RocksDB version: 5.11.3
+2021/03/13-21:16:32.113787 7feafd080a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:16:32.113789 7feafd080a80 Compile date Mar 13 2021
+2021/03/13-21:16:32.113792 7feafd080a80 DB SUMMARY
+2021/03/13-21:16:32.113820 7feafd080a80 CURRENT file: CURRENT
+2021/03/13-21:16:32.113821 7feafd080a80 IDENTITY file: IDENTITY
+2021/03/13-21:16:32.113825 7feafd080a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:16:32.113826 7feafd080a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:16:32.113827 7feafd080a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:16:32.113829 7feafd080a80 Options.error_if_exists: 0
+2021/03/13-21:16:32.113829 7feafd080a80 Options.create_if_missing: 1
+2021/03/13-21:16:32.113830 7feafd080a80 Options.paranoid_checks: 1
+2021/03/13-21:16:32.113831 7feafd080a80 Options.env: 0x7feafda3a080
+2021/03/13-21:16:32.113831 7feafd080a80 Options.info_log: 0x1928c80
+2021/03/13-21:16:32.113832 7feafd080a80 Options.max_file_opening_threads: 16
+2021/03/13-21:16:32.113833 7feafd080a80 Options.statistics: (nil)
+2021/03/13-21:16:32.113834 7feafd080a80 Options.use_fsync: 0
+2021/03/13-21:16:32.113834 7feafd080a80 Options.max_log_file_size: 0
+2021/03/13-21:16:32.113835 7feafd080a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:16:32.113836 7feafd080a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:16:32.113836 7feafd080a80 Options.keep_log_file_num: 1000
+2021/03/13-21:16:32.113837 7feafd080a80 Options.recycle_log_file_num: 0
+2021/03/13-21:16:32.113838 7feafd080a80 Options.allow_fallocate: 1
+2021/03/13-21:16:32.113838 7feafd080a80 Options.allow_mmap_reads: 0
+2021/03/13-21:16:32.113839 7feafd080a80 Options.allow_mmap_writes: 0
+2021/03/13-21:16:32.113839 7feafd080a80 Options.use_direct_reads: 0
+2021/03/13-21:16:32.113840 7feafd080a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:16:32.113841 7feafd080a80 Options.create_missing_column_families: 0
+2021/03/13-21:16:32.113841 7feafd080a80 Options.db_log_dir:
+2021/03/13-21:16:32.113842 7feafd080a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:16:32.113842 7feafd080a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:16:32.113843 7feafd080a80 Options.max_subcompactions: 1
+2021/03/13-21:16:32.113844 7feafd080a80 Options.max_background_flushes: -1
+2021/03/13-21:16:32.113844 7feafd080a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:16:32.113845 7feafd080a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:16:32.113846 7feafd080a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:16:32.113846 7feafd080a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:16:32.113847 7feafd080a80 Options.advise_random_on_open: 1
+2021/03/13-21:16:32.113848 7feafd080a80 Options.db_write_buffer_size: 0
+2021/03/13-21:16:32.113848 7feafd080a80 Options.write_buffer_manager: 0x1910b90
+2021/03/13-21:16:32.113849 7feafd080a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:16:32.113849 7feafd080a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:16:32.113850 7feafd080a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:16:32.113851 7feafd080a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:16:32.113851 7feafd080a80 Options.rate_limiter: (nil)
+2021/03/13-21:16:32.113853 7feafd080a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:16:32.113861 7feafd080a80 Options.wal_recovery_mode: 2
+2021/03/13-21:16:32.113862 7feafd080a80 Options.enable_thread_tracking: 0
+2021/03/13-21:16:32.113863 7feafd080a80 Options.enable_pipelined_write: 0
+2021/03/13-21:16:32.113863 7feafd080a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:16:32.113864 7feafd080a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:16:32.113864 7feafd080a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:16:32.113865 7feafd080a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:16:32.113866 7feafd080a80 Options.row_cache: None
+2021/03/13-21:16:32.113866 7feafd080a80 Options.wal_filter: None
+2021/03/13-21:16:32.113867 7feafd080a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:16:32.113868 7feafd080a80 Options.allow_ingest_behind: 0
+2021/03/13-21:16:32.113868 7feafd080a80 Options.preserve_deletes: 0
+2021/03/13-21:16:32.113869 7feafd080a80 Options.two_write_queues: 0
+2021/03/13-21:16:32.113869 7feafd080a80 Options.manual_wal_flush: 0
+2021/03/13-21:16:32.113871 7feafd080a80 Options.max_background_jobs: 16
+2021/03/13-21:16:32.113871 7feafd080a80 Options.max_background_compactions: -1
+2021/03/13-21:16:32.113872 7feafd080a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:16:32.113873 7feafd080a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:16:32.113873 7feafd080a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:16:32.113874 7feafd080a80 Options.max_total_wal_size: 0
+2021/03/13-21:16:32.113874 7feafd080a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:16:32.113875 7feafd080a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:16:32.113876 7feafd080a80 Options.max_open_files: -1
+2021/03/13-21:16:32.113876 7feafd080a80 Options.bytes_per_sync: 0
+2021/03/13-21:16:32.113877 7feafd080a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:16:32.113878 7feafd080a80 Options.compaction_readahead_size: 0
+2021/03/13-21:16:32.113878 7feafd080a80 Compression algorithms supported:
+2021/03/13-21:16:32.113879 7feafd080a80 Snappy supported: 1
+2021/03/13-21:16:32.113880 7feafd080a80 Zlib supported: 1
+2021/03/13-21:16:32.113880 7feafd080a80 Bzip supported: 1
+2021/03/13-21:16:32.113881 7feafd080a80 LZ4 supported: 1
+2021/03/13-21:16:32.113882 7feafd080a80 ZSTDNotFinal supported: 1
+2021/03/13-21:16:32.113886 7feafd080a80 ZSTD supported: 1
+2021/03/13-21:16:32.113890 7feafd080a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:16:32.113891 7feafd080a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:16:32.113996 7feafd080a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:16:32.114057 7feafd080a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:16:32.114059 7feafd080a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:16:32.114060 7feafd080a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:16:32.114061 7feafd080a80 Options.compaction_filter: None
+2021/03/13-21:16:32.114062 7feafd080a80 Options.compaction_filter_factory: None
+2021/03/13-21:16:32.114062 7feafd080a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:16:32.114063 7feafd080a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:16:32.114077 7feafd080a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1920520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1905c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:16:32.114078 7feafd080a80 Options.write_buffer_size: 134217728
+2021/03/13-21:16:32.114079 7feafd080a80 Options.max_write_buffer_number: 6
+2021/03/13-21:16:32.114080 7feafd080a80 Options.compression[0]: NoCompression
+2021/03/13-21:16:32.114080 7feafd080a80 Options.compression[1]: NoCompression
+2021/03/13-21:16:32.114081 7feafd080a80 Options.compression[2]: Snappy
+2021/03/13-21:16:32.114082 7feafd080a80 Options.compression[3]: Snappy
+2021/03/13-21:16:32.114082 7feafd080a80 Options.compression[4]: Snappy
+2021/03/13-21:16:32.114083 7feafd080a80 Options.compression[5]: Snappy
+2021/03/13-21:16:32.114083 7feafd080a80 Options.compression[6]: Snappy
+2021/03/13-21:16:32.114084 7feafd080a80 Options.bottommost_compression: Disabled
+2021/03/13-21:16:32.114085 7feafd080a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:16:32.114086 7feafd080a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:16:32.114087 7feafd080a80 Options.num_levels: 7
+2021/03/13-21:16:32.114087 7feafd080a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:16:32.114088 7feafd080a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:16:32.114088 7feafd080a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:16:32.114089 7feafd080a80 Options.compression_opts.level: -1
+2021/03/13-21:16:32.114090 7feafd080a80 Options.compression_opts.strategy: 0
+2021/03/13-21:16:32.114090 7feafd080a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:16:32.114091 7feafd080a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:16:32.114092 7feafd080a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:16:32.114092 7feafd080a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:16:32.114093 7feafd080a80 Options.target_file_size_base: 67108864
+2021/03/13-21:16:32.114094 7feafd080a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:16:32.114094 7feafd080a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:16:32.114095 7feafd080a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:16:32.114095 7feafd080a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:16:32.114098 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:16:32.114106 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:16:32.114107 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:16:32.114107 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:16:32.114108 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:16:32.114108 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:16:32.114109 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:16:32.114110 7feafd080a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:16:32.114110 7feafd080a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:16:32.114111 7feafd080a80 Options.arena_block_size: 16777216
+2021/03/13-21:16:32.114112 7feafd080a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:16:32.114112 7feafd080a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:16:32.114113 7feafd080a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:16:32.114114 7feafd080a80 Options.disable_auto_compactions: 0
+2021/03/13-21:16:32.114115 7feafd080a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:16:32.114116 7feafd080a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:16:32.114116 7feafd080a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:16:32.114117 7feafd080a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:16:32.114118 7feafd080a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:16:32.114118 7feafd080a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:16:32.114119 7feafd080a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:16:32.114120 7feafd080a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:16:32.114121 7feafd080a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:16:32.114121 7feafd080a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:16:32.114122 7feafd080a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:16:32.114123 7feafd080a80 Options.table_properties_collectors:
+2021/03/13-21:16:32.114123 7feafd080a80 Options.inplace_update_support: 0
+2021/03/13-21:16:32.114124 7feafd080a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:16:32.114124 7feafd080a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:16:32.114125 7feafd080a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:16:32.114126 7feafd080a80 Options.bloom_locality: 0
+2021/03/13-21:16:32.114127 7feafd080a80 Options.max_successive_merges: 0
+2021/03/13-21:16:32.114127 7feafd080a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:16:32.114128 7feafd080a80 Options.paranoid_file_checks: 0
+2021/03/13-21:16:32.114128 7feafd080a80 Options.force_consistency_checks: 0
+2021/03/13-21:16:32.114129 7feafd080a80 Options.report_bg_io_stats: 0
+2021/03/13-21:16:32.114580 7feafd080a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:16:32.114584 7feafd080a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:16:32.114669 7feafd080a80 EVENT_LOG_v1 {"time_micros": 1615666592114647, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:16:32.114678 7feafd080a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:16:32.801987 7feafd080a80 EVENT_LOG_v1 {"time_micros": 1615666592801983, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666883961859 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666883961859
new file mode 100644
index 0000000..5ff930e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666883961859
@@ -0,0 +1,186 @@
+2021/03/13-21:16:32.813747 7feafd080a80 RocksDB version: 5.11.3
+2021/03/13-21:16:32.813804 7feafd080a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:16:32.813806 7feafd080a80 Compile date Mar 13 2021
+2021/03/13-21:16:32.813808 7feafd080a80 DB SUMMARY
+2021/03/13-21:16:32.813835 7feafd080a80 CURRENT file: CURRENT
+2021/03/13-21:16:32.813835 7feafd080a80 IDENTITY file: IDENTITY
+2021/03/13-21:16:32.813838 7feafd080a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:16:32.813839 7feafd080a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:16:32.813840 7feafd080a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:16:32.813842 7feafd080a80 Options.error_if_exists: 0
+2021/03/13-21:16:32.813843 7feafd080a80 Options.create_if_missing: 1
+2021/03/13-21:16:32.813843 7feafd080a80 Options.paranoid_checks: 1
+2021/03/13-21:16:32.813844 7feafd080a80 Options.env: 0x7feafda3a080
+2021/03/13-21:16:32.813844 7feafd080a80 Options.info_log: 0x1928c80
+2021/03/13-21:16:32.813845 7feafd080a80 Options.max_file_opening_threads: 16
+2021/03/13-21:16:32.813846 7feafd080a80 Options.statistics: (nil)
+2021/03/13-21:16:32.813846 7feafd080a80 Options.use_fsync: 0
+2021/03/13-21:16:32.813847 7feafd080a80 Options.max_log_file_size: 0
+2021/03/13-21:16:32.813847 7feafd080a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:16:32.813848 7feafd080a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:16:32.813849 7feafd080a80 Options.keep_log_file_num: 1000
+2021/03/13-21:16:32.813849 7feafd080a80 Options.recycle_log_file_num: 0
+2021/03/13-21:16:32.813850 7feafd080a80 Options.allow_fallocate: 1
+2021/03/13-21:16:32.813850 7feafd080a80 Options.allow_mmap_reads: 0
+2021/03/13-21:16:32.813851 7feafd080a80 Options.allow_mmap_writes: 0
+2021/03/13-21:16:32.813851 7feafd080a80 Options.use_direct_reads: 0
+2021/03/13-21:16:32.813852 7feafd080a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:16:32.813852 7feafd080a80 Options.create_missing_column_families: 0
+2021/03/13-21:16:32.813853 7feafd080a80 Options.db_log_dir:
+2021/03/13-21:16:32.813854 7feafd080a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:16:32.813854 7feafd080a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:16:32.813855 7feafd080a80 Options.max_subcompactions: 1
+2021/03/13-21:16:32.813855 7feafd080a80 Options.max_background_flushes: -1
+2021/03/13-21:16:32.813856 7feafd080a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:16:32.813856 7feafd080a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:16:32.813857 7feafd080a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:16:32.813858 7feafd080a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:16:32.813858 7feafd080a80 Options.advise_random_on_open: 1
+2021/03/13-21:16:32.813859 7feafd080a80 Options.db_write_buffer_size: 0
+2021/03/13-21:16:32.813859 7feafd080a80 Options.write_buffer_manager: 0x1910b90
+2021/03/13-21:16:32.813860 7feafd080a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:16:32.813860 7feafd080a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:16:32.813861 7feafd080a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:16:32.813861 7feafd080a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:16:32.813862 7feafd080a80 Options.rate_limiter: (nil)
+2021/03/13-21:16:32.813863 7feafd080a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:16:32.813871 7feafd080a80 Options.wal_recovery_mode: 2
+2021/03/13-21:16:32.813871 7feafd080a80 Options.enable_thread_tracking: 0
+2021/03/13-21:16:32.813872 7feafd080a80 Options.enable_pipelined_write: 0
+2021/03/13-21:16:32.813872 7feafd080a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:16:32.813873 7feafd080a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:16:32.813873 7feafd080a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:16:32.813874 7feafd080a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:16:32.813875 7feafd080a80 Options.row_cache: None
+2021/03/13-21:16:32.813875 7feafd080a80 Options.wal_filter: None
+2021/03/13-21:16:32.813876 7feafd080a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:16:32.813876 7feafd080a80 Options.allow_ingest_behind: 0
+2021/03/13-21:16:32.813877 7feafd080a80 Options.preserve_deletes: 0
+2021/03/13-21:16:32.813877 7feafd080a80 Options.two_write_queues: 0
+2021/03/13-21:16:32.813878 7feafd080a80 Options.manual_wal_flush: 0
+2021/03/13-21:16:32.813879 7feafd080a80 Options.max_background_jobs: 16
+2021/03/13-21:16:32.813880 7feafd080a80 Options.max_background_compactions: -1
+2021/03/13-21:16:32.813880 7feafd080a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:16:32.813881 7feafd080a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:16:32.813881 7feafd080a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:16:32.813882 7feafd080a80 Options.max_total_wal_size: 0
+2021/03/13-21:16:32.813882 7feafd080a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:16:32.813883 7feafd080a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:16:32.813884 7feafd080a80 Options.max_open_files: -1
+2021/03/13-21:16:32.813884 7feafd080a80 Options.bytes_per_sync: 0
+2021/03/13-21:16:32.813885 7feafd080a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:16:32.813885 7feafd080a80 Options.compaction_readahead_size: 0
+2021/03/13-21:16:32.813886 7feafd080a80 Compression algorithms supported:
+2021/03/13-21:16:32.813886 7feafd080a80 Snappy supported: 1
+2021/03/13-21:16:32.813887 7feafd080a80 Zlib supported: 1
+2021/03/13-21:16:32.813887 7feafd080a80 Bzip supported: 1
+2021/03/13-21:16:32.813888 7feafd080a80 LZ4 supported: 1
+2021/03/13-21:16:32.813889 7feafd080a80 ZSTDNotFinal supported: 1
+2021/03/13-21:16:32.813892 7feafd080a80 ZSTD supported: 1
+2021/03/13-21:16:32.813896 7feafd080a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:16:32.813897 7feafd080a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:16:32.814008 7feafd080a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:16:32.814078 7feafd080a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:16:32.814080 7feafd080a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:16:32.814081 7feafd080a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:16:32.814082 7feafd080a80 Options.compaction_filter: None
+2021/03/13-21:16:32.814082 7feafd080a80 Options.compaction_filter_factory: None
+2021/03/13-21:16:32.814083 7feafd080a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:16:32.814084 7feafd080a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:16:32.814101 7feafd080a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1920520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1905c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:16:32.814104 7feafd080a80 Options.write_buffer_size: 134217728
+2021/03/13-21:16:32.814105 7feafd080a80 Options.max_write_buffer_number: 6
+2021/03/13-21:16:32.814106 7feafd080a80 Options.compression[0]: NoCompression
+2021/03/13-21:16:32.814107 7feafd080a80 Options.compression[1]: NoCompression
+2021/03/13-21:16:32.814108 7feafd080a80 Options.compression[2]: Snappy
+2021/03/13-21:16:32.814109 7feafd080a80 Options.compression[3]: Snappy
+2021/03/13-21:16:32.814110 7feafd080a80 Options.compression[4]: Snappy
+2021/03/13-21:16:32.814110 7feafd080a80 Options.compression[5]: Snappy
+2021/03/13-21:16:32.814111 7feafd080a80 Options.compression[6]: Snappy
+2021/03/13-21:16:32.814112 7feafd080a80 Options.bottommost_compression: Disabled
+2021/03/13-21:16:32.814113 7feafd080a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:16:32.814114 7feafd080a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:16:32.814115 7feafd080a80 Options.num_levels: 7
+2021/03/13-21:16:32.814116 7feafd080a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:16:32.814117 7feafd080a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:16:32.814117 7feafd080a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:16:32.814118 7feafd080a80 Options.compression_opts.level: -1
+2021/03/13-21:16:32.814119 7feafd080a80 Options.compression_opts.strategy: 0
+2021/03/13-21:16:32.814120 7feafd080a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:16:32.814121 7feafd080a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:16:32.814121 7feafd080a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:16:32.814122 7feafd080a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:16:32.814123 7feafd080a80 Options.target_file_size_base: 67108864
+2021/03/13-21:16:32.814124 7feafd080a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:16:32.814125 7feafd080a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:16:32.814126 7feafd080a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:16:32.814127 7feafd080a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:16:32.814129 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:16:32.814140 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:16:32.814141 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:16:32.814142 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:16:32.814142 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:16:32.814143 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:16:32.814144 7feafd080a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:16:32.814145 7feafd080a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:16:32.814146 7feafd080a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:16:32.814147 7feafd080a80 Options.arena_block_size: 16777216
+2021/03/13-21:16:32.814148 7feafd080a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:16:32.814149 7feafd080a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:16:32.814150 7feafd080a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:16:32.814151 7feafd080a80 Options.disable_auto_compactions: 0
+2021/03/13-21:16:32.814153 7feafd080a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:16:32.814154 7feafd080a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:16:32.814155 7feafd080a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:16:32.814156 7feafd080a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:16:32.814157 7feafd080a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:16:32.814158 7feafd080a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:16:32.814159 7feafd080a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:16:32.814160 7feafd080a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:16:32.814161 7feafd080a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:16:32.814162 7feafd080a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:16:32.814163 7feafd080a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:16:32.814165 7feafd080a80 Options.table_properties_collectors:
+2021/03/13-21:16:32.814166 7feafd080a80 Options.inplace_update_support: 0
+2021/03/13-21:16:32.814166 7feafd080a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:16:32.814167 7feafd080a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:16:32.814168 7feafd080a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:16:32.814169 7feafd080a80 Options.bloom_locality: 0
+2021/03/13-21:16:32.814170 7feafd080a80 Options.max_successive_merges: 0
+2021/03/13-21:16:32.814170 7feafd080a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:16:32.814171 7feafd080a80 Options.paranoid_file_checks: 0
+2021/03/13-21:16:32.814171 7feafd080a80 Options.force_consistency_checks: 0
+2021/03/13-21:16:32.814172 7feafd080a80 Options.report_bg_io_stats: 0
+2021/03/13-21:16:32.814604 7feafd080a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:16:32.814607 7feafd080a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:16:32.814666 7feafd080a80 EVENT_LOG_v1 {"time_micros": 1615666592814652, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:16:32.814671 7feafd080a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:16:33.512572 7feafd080a80 EVENT_LOG_v1 {"time_micros": 1615666593512568, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666884671168 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666884671168
new file mode 100644
index 0000000..a74a08b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666884671168
@@ -0,0 +1,186 @@
+2021/03/13-21:21:23.962160 7f9c9f60ba80 RocksDB version: 5.11.3
+2021/03/13-21:21:23.962243 7f9c9f60ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:21:23.962246 7f9c9f60ba80 Compile date Mar 13 2021
+2021/03/13-21:21:23.962253 7f9c9f60ba80 DB SUMMARY
+2021/03/13-21:21:23.962294 7f9c9f60ba80 CURRENT file: CURRENT
+2021/03/13-21:21:23.962296 7f9c9f60ba80 IDENTITY file: IDENTITY
+2021/03/13-21:21:23.962300 7f9c9f60ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:21:23.962302 7f9c9f60ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:21:23.962304 7f9c9f60ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:21:23.962306 7f9c9f60ba80 Options.error_if_exists: 0
+2021/03/13-21:21:23.962307 7f9c9f60ba80 Options.create_if_missing: 1
+2021/03/13-21:21:23.962308 7f9c9f60ba80 Options.paranoid_checks: 1
+2021/03/13-21:21:23.962309 7f9c9f60ba80 Options.env: 0x7f9c9ffc5080
+2021/03/13-21:21:23.962311 7f9c9f60ba80 Options.info_log: 0x1442c80
+2021/03/13-21:21:23.962312 7f9c9f60ba80 Options.max_file_opening_threads: 16
+2021/03/13-21:21:23.962313 7f9c9f60ba80 Options.statistics: (nil)
+2021/03/13-21:21:23.962314 7f9c9f60ba80 Options.use_fsync: 0
+2021/03/13-21:21:23.962315 7f9c9f60ba80 Options.max_log_file_size: 0
+2021/03/13-21:21:23.962316 7f9c9f60ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:21:23.962317 7f9c9f60ba80 Options.log_file_time_to_roll: 0
+2021/03/13-21:21:23.962318 7f9c9f60ba80 Options.keep_log_file_num: 1000
+2021/03/13-21:21:23.962319 7f9c9f60ba80 Options.recycle_log_file_num: 0
+2021/03/13-21:21:23.962320 7f9c9f60ba80 Options.allow_fallocate: 1
+2021/03/13-21:21:23.962321 7f9c9f60ba80 Options.allow_mmap_reads: 0
+2021/03/13-21:21:23.962323 7f9c9f60ba80 Options.allow_mmap_writes: 0
+2021/03/13-21:21:23.962324 7f9c9f60ba80 Options.use_direct_reads: 0
+2021/03/13-21:21:23.962325 7f9c9f60ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:21:23.962326 7f9c9f60ba80 Options.create_missing_column_families: 0
+2021/03/13-21:21:23.962327 7f9c9f60ba80 Options.db_log_dir:
+2021/03/13-21:21:23.962329 7f9c9f60ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:21:23.962330 7f9c9f60ba80 Options.table_cache_numshardbits: 6
+2021/03/13-21:21:23.962331 7f9c9f60ba80 Options.max_subcompactions: 1
+2021/03/13-21:21:23.962332 7f9c9f60ba80 Options.max_background_flushes: -1
+2021/03/13-21:21:23.962334 7f9c9f60ba80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:21:23.962335 7f9c9f60ba80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:21:23.962336 7f9c9f60ba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:21:23.962337 7f9c9f60ba80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:21:23.962339 7f9c9f60ba80 Options.advise_random_on_open: 1
+2021/03/13-21:21:23.962340 7f9c9f60ba80 Options.db_write_buffer_size: 0
+2021/03/13-21:21:23.962341 7f9c9f60ba80 Options.write_buffer_manager: 0x142ab90
+2021/03/13-21:21:23.962342 7f9c9f60ba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:21:23.962344 7f9c9f60ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:21:23.962345 7f9c9f60ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:21:23.962346 7f9c9f60ba80 Options.use_adaptive_mutex: 0
+2021/03/13-21:21:23.962347 7f9c9f60ba80 Options.rate_limiter: (nil)
+2021/03/13-21:21:23.962350 7f9c9f60ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:21:23.962364 7f9c9f60ba80 Options.wal_recovery_mode: 2
+2021/03/13-21:21:23.962365 7f9c9f60ba80 Options.enable_thread_tracking: 0
+2021/03/13-21:21:23.962366 7f9c9f60ba80 Options.enable_pipelined_write: 0
+2021/03/13-21:21:23.962368 7f9c9f60ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:21:23.962369 7f9c9f60ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:21:23.962370 7f9c9f60ba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:21:23.962372 7f9c9f60ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:21:23.962373 7f9c9f60ba80 Options.row_cache: None
+2021/03/13-21:21:23.962374 7f9c9f60ba80 Options.wal_filter: None
+2021/03/13-21:21:23.962376 7f9c9f60ba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:21:23.962377 7f9c9f60ba80 Options.allow_ingest_behind: 0
+2021/03/13-21:21:23.962378 7f9c9f60ba80 Options.preserve_deletes: 0
+2021/03/13-21:21:23.962379 7f9c9f60ba80 Options.two_write_queues: 0
+2021/03/13-21:21:23.962381 7f9c9f60ba80 Options.manual_wal_flush: 0
+2021/03/13-21:21:23.962383 7f9c9f60ba80 Options.max_background_jobs: 16
+2021/03/13-21:21:23.962384 7f9c9f60ba80 Options.max_background_compactions: -1
+2021/03/13-21:21:23.962386 7f9c9f60ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:21:23.962387 7f9c9f60ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:21:23.962388 7f9c9f60ba80 Options.delayed_write_rate : 16777216
+2021/03/13-21:21:23.962390 7f9c9f60ba80 Options.max_total_wal_size: 0
+2021/03/13-21:21:23.962391 7f9c9f60ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:21:23.962392 7f9c9f60ba80 Options.stats_dump_period_sec: 600
+2021/03/13-21:21:23.962394 7f9c9f60ba80 Options.max_open_files: -1
+2021/03/13-21:21:23.962395 7f9c9f60ba80 Options.bytes_per_sync: 0
+2021/03/13-21:21:23.962396 7f9c9f60ba80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:21:23.962397 7f9c9f60ba80 Options.compaction_readahead_size: 0
+2021/03/13-21:21:23.962399 7f9c9f60ba80 Compression algorithms supported:
+2021/03/13-21:21:23.962400 7f9c9f60ba80 Snappy supported: 1
+2021/03/13-21:21:23.962401 7f9c9f60ba80 Zlib supported: 1
+2021/03/13-21:21:23.962403 7f9c9f60ba80 Bzip supported: 1
+2021/03/13-21:21:23.962404 7f9c9f60ba80 LZ4 supported: 1
+2021/03/13-21:21:23.962405 7f9c9f60ba80 ZSTDNotFinal supported: 1
+2021/03/13-21:21:23.962412 7f9c9f60ba80 ZSTD supported: 1
+2021/03/13-21:21:23.962417 7f9c9f60ba80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:21:23.962420 7f9c9f60ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:21:23.962561 7f9c9f60ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:21:23.962646 7f9c9f60ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:21:23.962649 7f9c9f60ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:21:23.962650 7f9c9f60ba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:21:23.962651 7f9c9f60ba80 Options.compaction_filter: None
+2021/03/13-21:21:23.962653 7f9c9f60ba80 Options.compaction_filter_factory: None
+2021/03/13-21:21:23.962654 7f9c9f60ba80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:21:23.962655 7f9c9f60ba80 Options.table_factory: BlockBasedTable
+2021/03/13-21:21:23.962677 7f9c9f60ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x143a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x141fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:21:23.962679 7f9c9f60ba80 Options.write_buffer_size: 134217728
+2021/03/13-21:21:23.962680 7f9c9f60ba80 Options.max_write_buffer_number: 6
+2021/03/13-21:21:23.962682 7f9c9f60ba80 Options.compression[0]: NoCompression
+2021/03/13-21:21:23.962683 7f9c9f60ba80 Options.compression[1]: NoCompression
+2021/03/13-21:21:23.962685 7f9c9f60ba80 Options.compression[2]: Snappy
+2021/03/13-21:21:23.962686 7f9c9f60ba80 Options.compression[3]: Snappy
+2021/03/13-21:21:23.962687 7f9c9f60ba80 Options.compression[4]: Snappy
+2021/03/13-21:21:23.962688 7f9c9f60ba80 Options.compression[5]: Snappy
+2021/03/13-21:21:23.962689 7f9c9f60ba80 Options.compression[6]: Snappy
+2021/03/13-21:21:23.962691 7f9c9f60ba80 Options.bottommost_compression: Disabled
+2021/03/13-21:21:23.962692 7f9c9f60ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:21:23.962693 7f9c9f60ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:21:23.962694 7f9c9f60ba80 Options.num_levels: 7
+2021/03/13-21:21:23.962695 7f9c9f60ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:21:23.962696 7f9c9f60ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:21:23.962697 7f9c9f60ba80 Options.compression_opts.window_bits: -14
+2021/03/13-21:21:23.962698 7f9c9f60ba80 Options.compression_opts.level: -1
+2021/03/13-21:21:23.962699 7f9c9f60ba80 Options.compression_opts.strategy: 0
+2021/03/13-21:21:23.962701 7f9c9f60ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:21:23.962702 7f9c9f60ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:21:23.962703 7f9c9f60ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:21:23.962704 7f9c9f60ba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:21:23.962705 7f9c9f60ba80 Options.target_file_size_base: 67108864
+2021/03/13-21:21:23.962706 7f9c9f60ba80 Options.target_file_size_multiplier: 1
+2021/03/13-21:21:23.962707 7f9c9f60ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:21:23.962708 7f9c9f60ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:21:23.962709 7f9c9f60ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:21:23.962711 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:21:23.962721 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:21:23.962723 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:21:23.962724 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:21:23.962725 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:21:23.962726 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:21:23.962727 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:21:23.962728 7f9c9f60ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:21:23.962729 7f9c9f60ba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:21:23.962730 7f9c9f60ba80 Options.arena_block_size: 16777216
+2021/03/13-21:21:23.962731 7f9c9f60ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:21:23.962732 7f9c9f60ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:21:23.962733 7f9c9f60ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:21:23.962734 7f9c9f60ba80 Options.disable_auto_compactions: 0
+2021/03/13-21:21:23.962736 7f9c9f60ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:21:23.962737 7f9c9f60ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:21:23.962738 7f9c9f60ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:21:23.962739 7f9c9f60ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:21:23.962740 7f9c9f60ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:21:23.962741 7f9c9f60ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:21:23.962742 7f9c9f60ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:21:23.962744 7f9c9f60ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:21:23.962745 7f9c9f60ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:21:23.962747 7f9c9f60ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:21:23.962748 7f9c9f60ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:21:23.962749 7f9c9f60ba80 Options.table_properties_collectors:
+2021/03/13-21:21:23.962751 7f9c9f60ba80 Options.inplace_update_support: 0
+2021/03/13-21:21:23.962752 7f9c9f60ba80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:21:23.962753 7f9c9f60ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:21:23.962755 7f9c9f60ba80 Options.memtable_huge_page_size: 0
+2021/03/13-21:21:23.962756 7f9c9f60ba80 Options.bloom_locality: 0
+2021/03/13-21:21:23.962757 7f9c9f60ba80 Options.max_successive_merges: 0
+2021/03/13-21:21:23.962759 7f9c9f60ba80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:21:23.962760 7f9c9f60ba80 Options.paranoid_file_checks: 0
+2021/03/13-21:21:23.962761 7f9c9f60ba80 Options.force_consistency_checks: 0
+2021/03/13-21:21:23.962763 7f9c9f60ba80 Options.report_bg_io_stats: 0
+2021/03/13-21:21:23.963308 7f9c9f60ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:21:23.963313 7f9c9f60ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:21:23.963400 7f9c9f60ba80 EVENT_LOG_v1 {"time_micros": 1615666883963383, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:21:23.963410 7f9c9f60ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:21:24.659278 7f9c9f60ba80 EVENT_LOG_v1 {"time_micros": 1615666884659274, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666885360670 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666885360670
new file mode 100644
index 0000000..5afa2b1
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666885360670
@@ -0,0 +1,186 @@
+2021/03/13-21:21:24.671462 7f9c9f60ba80 RocksDB version: 5.11.3
+2021/03/13-21:21:24.671520 7f9c9f60ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:21:24.671521 7f9c9f60ba80 Compile date Mar 13 2021
+2021/03/13-21:21:24.671526 7f9c9f60ba80 DB SUMMARY
+2021/03/13-21:21:24.671553 7f9c9f60ba80 CURRENT file: CURRENT
+2021/03/13-21:21:24.671554 7f9c9f60ba80 IDENTITY file: IDENTITY
+2021/03/13-21:21:24.671557 7f9c9f60ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:21:24.671558 7f9c9f60ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:21:24.671559 7f9c9f60ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:21:24.671560 7f9c9f60ba80 Options.error_if_exists: 0
+2021/03/13-21:21:24.671561 7f9c9f60ba80 Options.create_if_missing: 1
+2021/03/13-21:21:24.671561 7f9c9f60ba80 Options.paranoid_checks: 1
+2021/03/13-21:21:24.671562 7f9c9f60ba80 Options.env: 0x7f9c9ffc5080
+2021/03/13-21:21:24.671563 7f9c9f60ba80 Options.info_log: 0x1442c80
+2021/03/13-21:21:24.671563 7f9c9f60ba80 Options.max_file_opening_threads: 16
+2021/03/13-21:21:24.671564 7f9c9f60ba80 Options.statistics: (nil)
+2021/03/13-21:21:24.671564 7f9c9f60ba80 Options.use_fsync: 0
+2021/03/13-21:21:24.671565 7f9c9f60ba80 Options.max_log_file_size: 0
+2021/03/13-21:21:24.671566 7f9c9f60ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:21:24.671566 7f9c9f60ba80 Options.log_file_time_to_roll: 0
+2021/03/13-21:21:24.671567 7f9c9f60ba80 Options.keep_log_file_num: 1000
+2021/03/13-21:21:24.671567 7f9c9f60ba80 Options.recycle_log_file_num: 0
+2021/03/13-21:21:24.671568 7f9c9f60ba80 Options.allow_fallocate: 1
+2021/03/13-21:21:24.671569 7f9c9f60ba80 Options.allow_mmap_reads: 0
+2021/03/13-21:21:24.671569 7f9c9f60ba80 Options.allow_mmap_writes: 0
+2021/03/13-21:21:24.671570 7f9c9f60ba80 Options.use_direct_reads: 0
+2021/03/13-21:21:24.671570 7f9c9f60ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:21:24.671571 7f9c9f60ba80 Options.create_missing_column_families: 0
+2021/03/13-21:21:24.671571 7f9c9f60ba80 Options.db_log_dir:
+2021/03/13-21:21:24.671572 7f9c9f60ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:21:24.671572 7f9c9f60ba80 Options.table_cache_numshardbits: 6
+2021/03/13-21:21:24.671573 7f9c9f60ba80 Options.max_subcompactions: 1
+2021/03/13-21:21:24.671573 7f9c9f60ba80 Options.max_background_flushes: -1
+2021/03/13-21:21:24.671574 7f9c9f60ba80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:21:24.671574 7f9c9f60ba80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:21:24.671575 7f9c9f60ba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:21:24.671576 7f9c9f60ba80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:21:24.671576 7f9c9f60ba80 Options.advise_random_on_open: 1
+2021/03/13-21:21:24.671577 7f9c9f60ba80 Options.db_write_buffer_size: 0
+2021/03/13-21:21:24.671577 7f9c9f60ba80 Options.write_buffer_manager: 0x142ab90
+2021/03/13-21:21:24.671578 7f9c9f60ba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:21:24.671578 7f9c9f60ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:21:24.671579 7f9c9f60ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:21:24.671579 7f9c9f60ba80 Options.use_adaptive_mutex: 0
+2021/03/13-21:21:24.671580 7f9c9f60ba80 Options.rate_limiter: (nil)
+2021/03/13-21:21:24.671581 7f9c9f60ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:21:24.671589 7f9c9f60ba80 Options.wal_recovery_mode: 2
+2021/03/13-21:21:24.671590 7f9c9f60ba80 Options.enable_thread_tracking: 0
+2021/03/13-21:21:24.671590 7f9c9f60ba80 Options.enable_pipelined_write: 0
+2021/03/13-21:21:24.671591 7f9c9f60ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:21:24.671591 7f9c9f60ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:21:24.671592 7f9c9f60ba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:21:24.671592 7f9c9f60ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:21:24.671593 7f9c9f60ba80 Options.row_cache: None
+2021/03/13-21:21:24.671594 7f9c9f60ba80 Options.wal_filter: None
+2021/03/13-21:21:24.671594 7f9c9f60ba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:21:24.671595 7f9c9f60ba80 Options.allow_ingest_behind: 0
+2021/03/13-21:21:24.671595 7f9c9f60ba80 Options.preserve_deletes: 0
+2021/03/13-21:21:24.671596 7f9c9f60ba80 Options.two_write_queues: 0
+2021/03/13-21:21:24.671596 7f9c9f60ba80 Options.manual_wal_flush: 0
+2021/03/13-21:21:24.671597 7f9c9f60ba80 Options.max_background_jobs: 16
+2021/03/13-21:21:24.671598 7f9c9f60ba80 Options.max_background_compactions: -1
+2021/03/13-21:21:24.671599 7f9c9f60ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:21:24.671599 7f9c9f60ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:21:24.671600 7f9c9f60ba80 Options.delayed_write_rate : 16777216
+2021/03/13-21:21:24.671600 7f9c9f60ba80 Options.max_total_wal_size: 0
+2021/03/13-21:21:24.671601 7f9c9f60ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:21:24.671601 7f9c9f60ba80 Options.stats_dump_period_sec: 600
+2021/03/13-21:21:24.671602 7f9c9f60ba80 Options.max_open_files: -1
+2021/03/13-21:21:24.671602 7f9c9f60ba80 Options.bytes_per_sync: 0
+2021/03/13-21:21:24.671603 7f9c9f60ba80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:21:24.671603 7f9c9f60ba80 Options.compaction_readahead_size: 0
+2021/03/13-21:21:24.671604 7f9c9f60ba80 Compression algorithms supported:
+2021/03/13-21:21:24.671605 7f9c9f60ba80 Snappy supported: 1
+2021/03/13-21:21:24.671605 7f9c9f60ba80 Zlib supported: 1
+2021/03/13-21:21:24.671606 7f9c9f60ba80 Bzip supported: 1
+2021/03/13-21:21:24.671606 7f9c9f60ba80 LZ4 supported: 1
+2021/03/13-21:21:24.671607 7f9c9f60ba80 ZSTDNotFinal supported: 1
+2021/03/13-21:21:24.671610 7f9c9f60ba80 ZSTD supported: 1
+2021/03/13-21:21:24.671613 7f9c9f60ba80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:21:24.671614 7f9c9f60ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:21:24.671703 7f9c9f60ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:21:24.671754 7f9c9f60ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:21:24.671756 7f9c9f60ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:21:24.671757 7f9c9f60ba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:21:24.671757 7f9c9f60ba80 Options.compaction_filter: None
+2021/03/13-21:21:24.671758 7f9c9f60ba80 Options.compaction_filter_factory: None
+2021/03/13-21:21:24.671758 7f9c9f60ba80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:21:24.671759 7f9c9f60ba80 Options.table_factory: BlockBasedTable
+2021/03/13-21:21:24.671772 7f9c9f60ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x143a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x141fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:21:24.671773 7f9c9f60ba80 Options.write_buffer_size: 134217728
+2021/03/13-21:21:24.671773 7f9c9f60ba80 Options.max_write_buffer_number: 6
+2021/03/13-21:21:24.671774 7f9c9f60ba80 Options.compression[0]: NoCompression
+2021/03/13-21:21:24.671775 7f9c9f60ba80 Options.compression[1]: NoCompression
+2021/03/13-21:21:24.671775 7f9c9f60ba80 Options.compression[2]: Snappy
+2021/03/13-21:21:24.671776 7f9c9f60ba80 Options.compression[3]: Snappy
+2021/03/13-21:21:24.671776 7f9c9f60ba80 Options.compression[4]: Snappy
+2021/03/13-21:21:24.671777 7f9c9f60ba80 Options.compression[5]: Snappy
+2021/03/13-21:21:24.671778 7f9c9f60ba80 Options.compression[6]: Snappy
+2021/03/13-21:21:24.671778 7f9c9f60ba80 Options.bottommost_compression: Disabled
+2021/03/13-21:21:24.671779 7f9c9f60ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:21:24.671779 7f9c9f60ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:21:24.671780 7f9c9f60ba80 Options.num_levels: 7
+2021/03/13-21:21:24.671781 7f9c9f60ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:21:24.671781 7f9c9f60ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:21:24.671782 7f9c9f60ba80 Options.compression_opts.window_bits: -14
+2021/03/13-21:21:24.671782 7f9c9f60ba80 Options.compression_opts.level: -1
+2021/03/13-21:21:24.671783 7f9c9f60ba80 Options.compression_opts.strategy: 0
+2021/03/13-21:21:24.671783 7f9c9f60ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:21:24.671784 7f9c9f60ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:21:24.671785 7f9c9f60ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:21:24.671785 7f9c9f60ba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:21:24.671786 7f9c9f60ba80 Options.target_file_size_base: 67108864
+2021/03/13-21:21:24.671786 7f9c9f60ba80 Options.target_file_size_multiplier: 1
+2021/03/13-21:21:24.671787 7f9c9f60ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:21:24.671788 7f9c9f60ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:21:24.671788 7f9c9f60ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:21:24.671790 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:21:24.671797 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:21:24.671797 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:21:24.671798 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:21:24.671798 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:21:24.671799 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:21:24.671799 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:21:24.671800 7f9c9f60ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:21:24.671801 7f9c9f60ba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:21:24.671801 7f9c9f60ba80 Options.arena_block_size: 16777216
+2021/03/13-21:21:24.671802 7f9c9f60ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:21:24.671802 7f9c9f60ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:21:24.671803 7f9c9f60ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:21:24.671803 7f9c9f60ba80 Options.disable_auto_compactions: 0
+2021/03/13-21:21:24.671805 7f9c9f60ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:21:24.671806 7f9c9f60ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:21:24.671806 7f9c9f60ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:21:24.671807 7f9c9f60ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:21:24.671807 7f9c9f60ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:21:24.671808 7f9c9f60ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:21:24.671808 7f9c9f60ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:21:24.671809 7f9c9f60ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:21:24.671810 7f9c9f60ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:21:24.671810 7f9c9f60ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:21:24.671811 7f9c9f60ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:21:24.671812 7f9c9f60ba80 Options.table_properties_collectors:
+2021/03/13-21:21:24.671812 7f9c9f60ba80 Options.inplace_update_support: 0
+2021/03/13-21:21:24.671813 7f9c9f60ba80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:21:24.671813 7f9c9f60ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:21:24.671814 7f9c9f60ba80 Options.memtable_huge_page_size: 0
+2021/03/13-21:21:24.671815 7f9c9f60ba80 Options.bloom_locality: 0
+2021/03/13-21:21:24.671815 7f9c9f60ba80 Options.max_successive_merges: 0
+2021/03/13-21:21:24.671816 7f9c9f60ba80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:21:24.671816 7f9c9f60ba80 Options.paranoid_file_checks: 0
+2021/03/13-21:21:24.671817 7f9c9f60ba80 Options.force_consistency_checks: 0
+2021/03/13-21:21:24.671817 7f9c9f60ba80 Options.report_bg_io_stats: 0
+2021/03/13-21:21:24.672207 7f9c9f60ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:21:24.672210 7f9c9f60ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:21:24.672300 7f9c9f60ba80 EVENT_LOG_v1 {"time_micros": 1615666884672290, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:21:24.672305 7f9c9f60ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:21:25.348785 7f9c9f60ba80 EVENT_LOG_v1 {"time_micros": 1615666885348782, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666989919471 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666989919471
new file mode 100644
index 0000000..891e7a4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666989919471
@@ -0,0 +1,186 @@
+2021/03/13-21:21:25.360938 7f9c9f60ba80 RocksDB version: 5.11.3
+2021/03/13-21:21:25.360995 7f9c9f60ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:21:25.360997 7f9c9f60ba80 Compile date Mar 13 2021
+2021/03/13-21:21:25.361001 7f9c9f60ba80 DB SUMMARY
+2021/03/13-21:21:25.361029 7f9c9f60ba80 CURRENT file: CURRENT
+2021/03/13-21:21:25.361030 7f9c9f60ba80 IDENTITY file: IDENTITY
+2021/03/13-21:21:25.361034 7f9c9f60ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:21:25.361035 7f9c9f60ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:21:25.361036 7f9c9f60ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:21:25.361037 7f9c9f60ba80 Options.error_if_exists: 0
+2021/03/13-21:21:25.361038 7f9c9f60ba80 Options.create_if_missing: 1
+2021/03/13-21:21:25.361039 7f9c9f60ba80 Options.paranoid_checks: 1
+2021/03/13-21:21:25.361039 7f9c9f60ba80 Options.env: 0x7f9c9ffc5080
+2021/03/13-21:21:25.361040 7f9c9f60ba80 Options.info_log: 0x1442c80
+2021/03/13-21:21:25.361040 7f9c9f60ba80 Options.max_file_opening_threads: 16
+2021/03/13-21:21:25.361041 7f9c9f60ba80 Options.statistics: (nil)
+2021/03/13-21:21:25.361042 7f9c9f60ba80 Options.use_fsync: 0
+2021/03/13-21:21:25.361042 7f9c9f60ba80 Options.max_log_file_size: 0
+2021/03/13-21:21:25.361043 7f9c9f60ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:21:25.361043 7f9c9f60ba80 Options.log_file_time_to_roll: 0
+2021/03/13-21:21:25.361044 7f9c9f60ba80 Options.keep_log_file_num: 1000
+2021/03/13-21:21:25.361045 7f9c9f60ba80 Options.recycle_log_file_num: 0
+2021/03/13-21:21:25.361045 7f9c9f60ba80 Options.allow_fallocate: 1
+2021/03/13-21:21:25.361046 7f9c9f60ba80 Options.allow_mmap_reads: 0
+2021/03/13-21:21:25.361046 7f9c9f60ba80 Options.allow_mmap_writes: 0
+2021/03/13-21:21:25.361047 7f9c9f60ba80 Options.use_direct_reads: 0
+2021/03/13-21:21:25.361047 7f9c9f60ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:21:25.361048 7f9c9f60ba80 Options.create_missing_column_families: 0
+2021/03/13-21:21:25.361048 7f9c9f60ba80 Options.db_log_dir:
+2021/03/13-21:21:25.361049 7f9c9f60ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:21:25.361050 7f9c9f60ba80 Options.table_cache_numshardbits: 6
+2021/03/13-21:21:25.361050 7f9c9f60ba80 Options.max_subcompactions: 1
+2021/03/13-21:21:25.361051 7f9c9f60ba80 Options.max_background_flushes: -1
+2021/03/13-21:21:25.361051 7f9c9f60ba80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:21:25.361052 7f9c9f60ba80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:21:25.361052 7f9c9f60ba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:21:25.361053 7f9c9f60ba80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:21:25.361053 7f9c9f60ba80 Options.advise_random_on_open: 1
+2021/03/13-21:21:25.361054 7f9c9f60ba80 Options.db_write_buffer_size: 0
+2021/03/13-21:21:25.361054 7f9c9f60ba80 Options.write_buffer_manager: 0x142ab90
+2021/03/13-21:21:25.361055 7f9c9f60ba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:21:25.361056 7f9c9f60ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:21:25.361056 7f9c9f60ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:21:25.361057 7f9c9f60ba80 Options.use_adaptive_mutex: 0
+2021/03/13-21:21:25.361057 7f9c9f60ba80 Options.rate_limiter: (nil)
+2021/03/13-21:21:25.361059 7f9c9f60ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:21:25.361067 7f9c9f60ba80 Options.wal_recovery_mode: 2
+2021/03/13-21:21:25.361068 7f9c9f60ba80 Options.enable_thread_tracking: 0
+2021/03/13-21:21:25.361068 7f9c9f60ba80 Options.enable_pipelined_write: 0
+2021/03/13-21:21:25.361069 7f9c9f60ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:21:25.361069 7f9c9f60ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:21:25.361070 7f9c9f60ba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:21:25.361070 7f9c9f60ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:21:25.361071 7f9c9f60ba80 Options.row_cache: None
+2021/03/13-21:21:25.361071 7f9c9f60ba80 Options.wal_filter: None
+2021/03/13-21:21:25.361072 7f9c9f60ba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:21:25.361073 7f9c9f60ba80 Options.allow_ingest_behind: 0
+2021/03/13-21:21:25.361073 7f9c9f60ba80 Options.preserve_deletes: 0
+2021/03/13-21:21:25.361074 7f9c9f60ba80 Options.two_write_queues: 0
+2021/03/13-21:21:25.361074 7f9c9f60ba80 Options.manual_wal_flush: 0
+2021/03/13-21:21:25.361075 7f9c9f60ba80 Options.max_background_jobs: 16
+2021/03/13-21:21:25.361076 7f9c9f60ba80 Options.max_background_compactions: -1
+2021/03/13-21:21:25.361076 7f9c9f60ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:21:25.361077 7f9c9f60ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:21:25.361078 7f9c9f60ba80 Options.delayed_write_rate : 16777216
+2021/03/13-21:21:25.361078 7f9c9f60ba80 Options.max_total_wal_size: 0
+2021/03/13-21:21:25.361079 7f9c9f60ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:21:25.361079 7f9c9f60ba80 Options.stats_dump_period_sec: 600
+2021/03/13-21:21:25.361080 7f9c9f60ba80 Options.max_open_files: -1
+2021/03/13-21:21:25.361080 7f9c9f60ba80 Options.bytes_per_sync: 0
+2021/03/13-21:21:25.361081 7f9c9f60ba80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:21:25.361082 7f9c9f60ba80 Options.compaction_readahead_size: 0
+2021/03/13-21:21:25.361082 7f9c9f60ba80 Compression algorithms supported:
+2021/03/13-21:21:25.361083 7f9c9f60ba80 Snappy supported: 1
+2021/03/13-21:21:25.361083 7f9c9f60ba80 Zlib supported: 1
+2021/03/13-21:21:25.361084 7f9c9f60ba80 Bzip supported: 1
+2021/03/13-21:21:25.361084 7f9c9f60ba80 LZ4 supported: 1
+2021/03/13-21:21:25.361085 7f9c9f60ba80 ZSTDNotFinal supported: 1
+2021/03/13-21:21:25.361089 7f9c9f60ba80 ZSTD supported: 1
+2021/03/13-21:21:25.361092 7f9c9f60ba80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:21:25.361093 7f9c9f60ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:21:25.361184 7f9c9f60ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:21:25.361237 7f9c9f60ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:21:25.361244 7f9c9f60ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:21:25.361245 7f9c9f60ba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:21:25.361246 7f9c9f60ba80 Options.compaction_filter: None
+2021/03/13-21:21:25.361246 7f9c9f60ba80 Options.compaction_filter_factory: None
+2021/03/13-21:21:25.361247 7f9c9f60ba80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:21:25.361248 7f9c9f60ba80 Options.table_factory: BlockBasedTable
+2021/03/13-21:21:25.361276 7f9c9f60ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x143a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x141fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:21:25.361277 7f9c9f60ba80 Options.write_buffer_size: 134217728
+2021/03/13-21:21:25.361277 7f9c9f60ba80 Options.max_write_buffer_number: 6
+2021/03/13-21:21:25.361278 7f9c9f60ba80 Options.compression[0]: NoCompression
+2021/03/13-21:21:25.361279 7f9c9f60ba80 Options.compression[1]: NoCompression
+2021/03/13-21:21:25.361279 7f9c9f60ba80 Options.compression[2]: Snappy
+2021/03/13-21:21:25.361280 7f9c9f60ba80 Options.compression[3]: Snappy
+2021/03/13-21:21:25.361280 7f9c9f60ba80 Options.compression[4]: Snappy
+2021/03/13-21:21:25.361281 7f9c9f60ba80 Options.compression[5]: Snappy
+2021/03/13-21:21:25.361281 7f9c9f60ba80 Options.compression[6]: Snappy
+2021/03/13-21:21:25.361282 7f9c9f60ba80 Options.bottommost_compression: Disabled
+2021/03/13-21:21:25.361283 7f9c9f60ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:21:25.361283 7f9c9f60ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:21:25.361284 7f9c9f60ba80 Options.num_levels: 7
+2021/03/13-21:21:25.361285 7f9c9f60ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:21:25.361285 7f9c9f60ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:21:25.361286 7f9c9f60ba80 Options.compression_opts.window_bits: -14
+2021/03/13-21:21:25.361286 7f9c9f60ba80 Options.compression_opts.level: -1
+2021/03/13-21:21:25.361287 7f9c9f60ba80 Options.compression_opts.strategy: 0
+2021/03/13-21:21:25.361287 7f9c9f60ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:21:25.361288 7f9c9f60ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:21:25.361288 7f9c9f60ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:21:25.361289 7f9c9f60ba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:21:25.361289 7f9c9f60ba80 Options.target_file_size_base: 67108864
+2021/03/13-21:21:25.361290 7f9c9f60ba80 Options.target_file_size_multiplier: 1
+2021/03/13-21:21:25.361291 7f9c9f60ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:21:25.361291 7f9c9f60ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:21:25.361292 7f9c9f60ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:21:25.361293 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:21:25.361302 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:21:25.361302 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:21:25.361303 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:21:25.361304 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:21:25.361304 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:21:25.361305 7f9c9f60ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:21:25.361305 7f9c9f60ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:21:25.361306 7f9c9f60ba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:21:25.361306 7f9c9f60ba80 Options.arena_block_size: 16777216
+2021/03/13-21:21:25.361307 7f9c9f60ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:21:25.361307 7f9c9f60ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:21:25.361308 7f9c9f60ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:21:25.361308 7f9c9f60ba80 Options.disable_auto_compactions: 0
+2021/03/13-21:21:25.361310 7f9c9f60ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:21:25.361311 7f9c9f60ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:21:25.361311 7f9c9f60ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:21:25.361312 7f9c9f60ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:21:25.361312 7f9c9f60ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:21:25.361313 7f9c9f60ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:21:25.361314 7f9c9f60ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:21:25.361315 7f9c9f60ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:21:25.361315 7f9c9f60ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:21:25.361316 7f9c9f60ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:21:25.361316 7f9c9f60ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:21:25.361317 7f9c9f60ba80 Options.table_properties_collectors:
+2021/03/13-21:21:25.361317 7f9c9f60ba80 Options.inplace_update_support: 0
+2021/03/13-21:21:25.361318 7f9c9f60ba80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:21:25.361319 7f9c9f60ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:21:25.361319 7f9c9f60ba80 Options.memtable_huge_page_size: 0
+2021/03/13-21:21:25.361320 7f9c9f60ba80 Options.bloom_locality: 0
+2021/03/13-21:21:25.361321 7f9c9f60ba80 Options.max_successive_merges: 0
+2021/03/13-21:21:25.361321 7f9c9f60ba80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:21:25.361322 7f9c9f60ba80 Options.paranoid_file_checks: 0
+2021/03/13-21:21:25.361322 7f9c9f60ba80 Options.force_consistency_checks: 0
+2021/03/13-21:21:25.361323 7f9c9f60ba80 Options.report_bg_io_stats: 0
+2021/03/13-21:21:25.361838 7f9c9f60ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:21:25.361840 7f9c9f60ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:21:25.361899 7f9c9f60ba80 EVENT_LOG_v1 {"time_micros": 1615666885361889, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:21:25.361904 7f9c9f60ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:21:26.049291 7f9c9f60ba80 EVENT_LOG_v1 {"time_micros": 1615666886049287, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666990646624 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666990646624
new file mode 100644
index 0000000..2a3b744
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666990646624
@@ -0,0 +1,186 @@
+2021/03/13-21:23:09.919784 7f3e1fd1ea80 RocksDB version: 5.11.3
+2021/03/13-21:23:09.919851 7f3e1fd1ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:23:09.919853 7f3e1fd1ea80 Compile date Mar 13 2021
+2021/03/13-21:23:09.919856 7f3e1fd1ea80 DB SUMMARY
+2021/03/13-21:23:09.919887 7f3e1fd1ea80 CURRENT file: CURRENT
+2021/03/13-21:23:09.919888 7f3e1fd1ea80 IDENTITY file: IDENTITY
+2021/03/13-21:23:09.919892 7f3e1fd1ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:23:09.919893 7f3e1fd1ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:23:09.919895 7f3e1fd1ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:23:09.919896 7f3e1fd1ea80 Options.error_if_exists: 0
+2021/03/13-21:23:09.919897 7f3e1fd1ea80 Options.create_if_missing: 1
+2021/03/13-21:23:09.919898 7f3e1fd1ea80 Options.paranoid_checks: 1
+2021/03/13-21:23:09.919899 7f3e1fd1ea80 Options.env: 0x7f3e206d8080
+2021/03/13-21:23:09.919899 7f3e1fd1ea80 Options.info_log: 0x1924c80
+2021/03/13-21:23:09.919900 7f3e1fd1ea80 Options.max_file_opening_threads: 16
+2021/03/13-21:23:09.919901 7f3e1fd1ea80 Options.statistics: (nil)
+2021/03/13-21:23:09.919901 7f3e1fd1ea80 Options.use_fsync: 0
+2021/03/13-21:23:09.919902 7f3e1fd1ea80 Options.max_log_file_size: 0
+2021/03/13-21:23:09.919903 7f3e1fd1ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:23:09.919903 7f3e1fd1ea80 Options.log_file_time_to_roll: 0
+2021/03/13-21:23:09.919904 7f3e1fd1ea80 Options.keep_log_file_num: 1000
+2021/03/13-21:23:09.919905 7f3e1fd1ea80 Options.recycle_log_file_num: 0
+2021/03/13-21:23:09.919905 7f3e1fd1ea80 Options.allow_fallocate: 1
+2021/03/13-21:23:09.919906 7f3e1fd1ea80 Options.allow_mmap_reads: 0
+2021/03/13-21:23:09.919907 7f3e1fd1ea80 Options.allow_mmap_writes: 0
+2021/03/13-21:23:09.919907 7f3e1fd1ea80 Options.use_direct_reads: 0
+2021/03/13-21:23:09.919908 7f3e1fd1ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:23:09.919909 7f3e1fd1ea80 Options.create_missing_column_families: 0
+2021/03/13-21:23:09.919909 7f3e1fd1ea80 Options.db_log_dir:
+2021/03/13-21:23:09.919910 7f3e1fd1ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:23:09.919911 7f3e1fd1ea80 Options.table_cache_numshardbits: 6
+2021/03/13-21:23:09.919911 7f3e1fd1ea80 Options.max_subcompactions: 1
+2021/03/13-21:23:09.919912 7f3e1fd1ea80 Options.max_background_flushes: -1
+2021/03/13-21:23:09.919913 7f3e1fd1ea80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:23:09.919913 7f3e1fd1ea80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:23:09.919914 7f3e1fd1ea80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:23:09.919915 7f3e1fd1ea80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:23:09.919915 7f3e1fd1ea80 Options.advise_random_on_open: 1
+2021/03/13-21:23:09.919916 7f3e1fd1ea80 Options.db_write_buffer_size: 0
+2021/03/13-21:23:09.919916 7f3e1fd1ea80 Options.write_buffer_manager: 0x190cb90
+2021/03/13-21:23:09.919917 7f3e1fd1ea80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:23:09.919918 7f3e1fd1ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:23:09.919918 7f3e1fd1ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:23:09.919919 7f3e1fd1ea80 Options.use_adaptive_mutex: 0
+2021/03/13-21:23:09.919920 7f3e1fd1ea80 Options.rate_limiter: (nil)
+2021/03/13-21:23:09.919921 7f3e1fd1ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:23:09.919930 7f3e1fd1ea80 Options.wal_recovery_mode: 2
+2021/03/13-21:23:09.919931 7f3e1fd1ea80 Options.enable_thread_tracking: 0
+2021/03/13-21:23:09.919931 7f3e1fd1ea80 Options.enable_pipelined_write: 0
+2021/03/13-21:23:09.919932 7f3e1fd1ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:23:09.919933 7f3e1fd1ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:23:09.919933 7f3e1fd1ea80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:23:09.919934 7f3e1fd1ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:23:09.919935 7f3e1fd1ea80 Options.row_cache: None
+2021/03/13-21:23:09.919935 7f3e1fd1ea80 Options.wal_filter: None
+2021/03/13-21:23:09.919936 7f3e1fd1ea80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:23:09.919937 7f3e1fd1ea80 Options.allow_ingest_behind: 0
+2021/03/13-21:23:09.919937 7f3e1fd1ea80 Options.preserve_deletes: 0
+2021/03/13-21:23:09.919938 7f3e1fd1ea80 Options.two_write_queues: 0
+2021/03/13-21:23:09.919938 7f3e1fd1ea80 Options.manual_wal_flush: 0
+2021/03/13-21:23:09.919940 7f3e1fd1ea80 Options.max_background_jobs: 16
+2021/03/13-21:23:09.919940 7f3e1fd1ea80 Options.max_background_compactions: -1
+2021/03/13-21:23:09.919941 7f3e1fd1ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:23:09.919942 7f3e1fd1ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:23:09.919942 7f3e1fd1ea80 Options.delayed_write_rate : 16777216
+2021/03/13-21:23:09.919943 7f3e1fd1ea80 Options.max_total_wal_size: 0
+2021/03/13-21:23:09.919944 7f3e1fd1ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:23:09.919944 7f3e1fd1ea80 Options.stats_dump_period_sec: 600
+2021/03/13-21:23:09.919945 7f3e1fd1ea80 Options.max_open_files: -1
+2021/03/13-21:23:09.919946 7f3e1fd1ea80 Options.bytes_per_sync: 0
+2021/03/13-21:23:09.919946 7f3e1fd1ea80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:23:09.919947 7f3e1fd1ea80 Options.compaction_readahead_size: 0
+2021/03/13-21:23:09.919948 7f3e1fd1ea80 Compression algorithms supported:
+2021/03/13-21:23:09.919948 7f3e1fd1ea80 Snappy supported: 1
+2021/03/13-21:23:09.919949 7f3e1fd1ea80 Zlib supported: 1
+2021/03/13-21:23:09.919950 7f3e1fd1ea80 Bzip supported: 1
+2021/03/13-21:23:09.919950 7f3e1fd1ea80 LZ4 supported: 1
+2021/03/13-21:23:09.919951 7f3e1fd1ea80 ZSTDNotFinal supported: 1
+2021/03/13-21:23:09.919956 7f3e1fd1ea80 ZSTD supported: 1
+2021/03/13-21:23:09.919959 7f3e1fd1ea80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:23:09.919961 7f3e1fd1ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:23:09.920069 7f3e1fd1ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:23:09.920130 7f3e1fd1ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:23:09.920132 7f3e1fd1ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:23:09.920133 7f3e1fd1ea80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:23:09.920134 7f3e1fd1ea80 Options.compaction_filter: None
+2021/03/13-21:23:09.920135 7f3e1fd1ea80 Options.compaction_filter_factory: None
+2021/03/13-21:23:09.920135 7f3e1fd1ea80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:23:09.920136 7f3e1fd1ea80 Options.table_factory: BlockBasedTable
+2021/03/13-21:23:09.920151 7f3e1fd1ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x191c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1901c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:23:09.920152 7f3e1fd1ea80 Options.write_buffer_size: 134217728
+2021/03/13-21:23:09.920153 7f3e1fd1ea80 Options.max_write_buffer_number: 6
+2021/03/13-21:23:09.920154 7f3e1fd1ea80 Options.compression[0]: NoCompression
+2021/03/13-21:23:09.920154 7f3e1fd1ea80 Options.compression[1]: NoCompression
+2021/03/13-21:23:09.920155 7f3e1fd1ea80 Options.compression[2]: Snappy
+2021/03/13-21:23:09.920156 7f3e1fd1ea80 Options.compression[3]: Snappy
+2021/03/13-21:23:09.920157 7f3e1fd1ea80 Options.compression[4]: Snappy
+2021/03/13-21:23:09.920157 7f3e1fd1ea80 Options.compression[5]: Snappy
+2021/03/13-21:23:09.920158 7f3e1fd1ea80 Options.compression[6]: Snappy
+2021/03/13-21:23:09.920159 7f3e1fd1ea80 Options.bottommost_compression: Disabled
+2021/03/13-21:23:09.920160 7f3e1fd1ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:23:09.920160 7f3e1fd1ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:23:09.920161 7f3e1fd1ea80 Options.num_levels: 7
+2021/03/13-21:23:09.920162 7f3e1fd1ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:23:09.920162 7f3e1fd1ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:23:09.920163 7f3e1fd1ea80 Options.compression_opts.window_bits: -14
+2021/03/13-21:23:09.920164 7f3e1fd1ea80 Options.compression_opts.level: -1
+2021/03/13-21:23:09.920164 7f3e1fd1ea80 Options.compression_opts.strategy: 0
+2021/03/13-21:23:09.920165 7f3e1fd1ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:23:09.920166 7f3e1fd1ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:23:09.920166 7f3e1fd1ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:23:09.920167 7f3e1fd1ea80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:23:09.920167 7f3e1fd1ea80 Options.target_file_size_base: 67108864
+2021/03/13-21:23:09.920168 7f3e1fd1ea80 Options.target_file_size_multiplier: 1
+2021/03/13-21:23:09.920169 7f3e1fd1ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:23:09.920170 7f3e1fd1ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:23:09.920170 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:23:09.920172 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:23:09.920180 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:23:09.920181 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:23:09.920182 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:23:09.920182 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:23:09.920183 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:23:09.920184 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:23:09.920184 7f3e1fd1ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:23:09.920185 7f3e1fd1ea80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:23:09.920186 7f3e1fd1ea80 Options.arena_block_size: 16777216
+2021/03/13-21:23:09.920186 7f3e1fd1ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:23:09.920187 7f3e1fd1ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:23:09.920188 7f3e1fd1ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:23:09.920188 7f3e1fd1ea80 Options.disable_auto_compactions: 0
+2021/03/13-21:23:09.920190 7f3e1fd1ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:23:09.920191 7f3e1fd1ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:23:09.920191 7f3e1fd1ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:23:09.920192 7f3e1fd1ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:23:09.920193 7f3e1fd1ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:23:09.920193 7f3e1fd1ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:23:09.920194 7f3e1fd1ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:23:09.920195 7f3e1fd1ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:23:09.920196 7f3e1fd1ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:23:09.920196 7f3e1fd1ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:23:09.920197 7f3e1fd1ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:23:09.920198 7f3e1fd1ea80 Options.table_properties_collectors:
+2021/03/13-21:23:09.920198 7f3e1fd1ea80 Options.inplace_update_support: 0
+2021/03/13-21:23:09.920199 7f3e1fd1ea80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:23:09.920200 7f3e1fd1ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:23:09.920201 7f3e1fd1ea80 Options.memtable_huge_page_size: 0
+2021/03/13-21:23:09.920201 7f3e1fd1ea80 Options.bloom_locality: 0
+2021/03/13-21:23:09.920202 7f3e1fd1ea80 Options.max_successive_merges: 0
+2021/03/13-21:23:09.920202 7f3e1fd1ea80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:23:09.920203 7f3e1fd1ea80 Options.paranoid_file_checks: 0
+2021/03/13-21:23:09.920204 7f3e1fd1ea80 Options.force_consistency_checks: 0
+2021/03/13-21:23:09.920204 7f3e1fd1ea80 Options.report_bg_io_stats: 0
+2021/03/13-21:23:09.920627 7f3e1fd1ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:23:09.920630 7f3e1fd1ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:23:09.920699 7f3e1fd1ea80 EVENT_LOG_v1 {"time_micros": 1615666989920688, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:23:09.920705 7f3e1fd1ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:23:10.634897 7f3e1fd1ea80 EVENT_LOG_v1 {"time_micros": 1615666990634893, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615666991373152 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666991373152
new file mode 100644
index 0000000..35434dc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615666991373152
@@ -0,0 +1,186 @@
+2021/03/13-21:23:10.646913 7f3e1fd1ea80 RocksDB version: 5.11.3
+2021/03/13-21:23:10.646971 7f3e1fd1ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:23:10.646973 7f3e1fd1ea80 Compile date Mar 13 2021
+2021/03/13-21:23:10.646975 7f3e1fd1ea80 DB SUMMARY
+2021/03/13-21:23:10.647003 7f3e1fd1ea80 CURRENT file: CURRENT
+2021/03/13-21:23:10.647004 7f3e1fd1ea80 IDENTITY file: IDENTITY
+2021/03/13-21:23:10.647007 7f3e1fd1ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:23:10.647009 7f3e1fd1ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:23:10.647010 7f3e1fd1ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:23:10.647012 7f3e1fd1ea80 Options.error_if_exists: 0
+2021/03/13-21:23:10.647012 7f3e1fd1ea80 Options.create_if_missing: 1
+2021/03/13-21:23:10.647013 7f3e1fd1ea80 Options.paranoid_checks: 1
+2021/03/13-21:23:10.647013 7f3e1fd1ea80 Options.env: 0x7f3e206d8080
+2021/03/13-21:23:10.647014 7f3e1fd1ea80 Options.info_log: 0x1924c80
+2021/03/13-21:23:10.647015 7f3e1fd1ea80 Options.max_file_opening_threads: 16
+2021/03/13-21:23:10.647015 7f3e1fd1ea80 Options.statistics: (nil)
+2021/03/13-21:23:10.647016 7f3e1fd1ea80 Options.use_fsync: 0
+2021/03/13-21:23:10.647017 7f3e1fd1ea80 Options.max_log_file_size: 0
+2021/03/13-21:23:10.647017 7f3e1fd1ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:23:10.647018 7f3e1fd1ea80 Options.log_file_time_to_roll: 0
+2021/03/13-21:23:10.647018 7f3e1fd1ea80 Options.keep_log_file_num: 1000
+2021/03/13-21:23:10.647019 7f3e1fd1ea80 Options.recycle_log_file_num: 0
+2021/03/13-21:23:10.647020 7f3e1fd1ea80 Options.allow_fallocate: 1
+2021/03/13-21:23:10.647020 7f3e1fd1ea80 Options.allow_mmap_reads: 0
+2021/03/13-21:23:10.647021 7f3e1fd1ea80 Options.allow_mmap_writes: 0
+2021/03/13-21:23:10.647021 7f3e1fd1ea80 Options.use_direct_reads: 0
+2021/03/13-21:23:10.647022 7f3e1fd1ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:23:10.647022 7f3e1fd1ea80 Options.create_missing_column_families: 0
+2021/03/13-21:23:10.647023 7f3e1fd1ea80 Options.db_log_dir:
+2021/03/13-21:23:10.647023 7f3e1fd1ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:23:10.647024 7f3e1fd1ea80 Options.table_cache_numshardbits: 6
+2021/03/13-21:23:10.647024 7f3e1fd1ea80 Options.max_subcompactions: 1
+2021/03/13-21:23:10.647025 7f3e1fd1ea80 Options.max_background_flushes: -1
+2021/03/13-21:23:10.647026 7f3e1fd1ea80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:23:10.647026 7f3e1fd1ea80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:23:10.647027 7f3e1fd1ea80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:23:10.647027 7f3e1fd1ea80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:23:10.647028 7f3e1fd1ea80 Options.advise_random_on_open: 1
+2021/03/13-21:23:10.647028 7f3e1fd1ea80 Options.db_write_buffer_size: 0
+2021/03/13-21:23:10.647029 7f3e1fd1ea80 Options.write_buffer_manager: 0x190cb90
+2021/03/13-21:23:10.647030 7f3e1fd1ea80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:23:10.647030 7f3e1fd1ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:23:10.647031 7f3e1fd1ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:23:10.647031 7f3e1fd1ea80 Options.use_adaptive_mutex: 0
+2021/03/13-21:23:10.647032 7f3e1fd1ea80 Options.rate_limiter: (nil)
+2021/03/13-21:23:10.647033 7f3e1fd1ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:23:10.647040 7f3e1fd1ea80 Options.wal_recovery_mode: 2
+2021/03/13-21:23:10.647041 7f3e1fd1ea80 Options.enable_thread_tracking: 0
+2021/03/13-21:23:10.647042 7f3e1fd1ea80 Options.enable_pipelined_write: 0
+2021/03/13-21:23:10.647042 7f3e1fd1ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:23:10.647043 7f3e1fd1ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:23:10.647043 7f3e1fd1ea80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:23:10.647044 7f3e1fd1ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:23:10.647045 7f3e1fd1ea80 Options.row_cache: None
+2021/03/13-21:23:10.647045 7f3e1fd1ea80 Options.wal_filter: None
+2021/03/13-21:23:10.647046 7f3e1fd1ea80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:23:10.647046 7f3e1fd1ea80 Options.allow_ingest_behind: 0
+2021/03/13-21:23:10.647047 7f3e1fd1ea80 Options.preserve_deletes: 0
+2021/03/13-21:23:10.647047 7f3e1fd1ea80 Options.two_write_queues: 0
+2021/03/13-21:23:10.647048 7f3e1fd1ea80 Options.manual_wal_flush: 0
+2021/03/13-21:23:10.647049 7f3e1fd1ea80 Options.max_background_jobs: 16
+2021/03/13-21:23:10.647050 7f3e1fd1ea80 Options.max_background_compactions: -1
+2021/03/13-21:23:10.647050 7f3e1fd1ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:23:10.647051 7f3e1fd1ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:23:10.647051 7f3e1fd1ea80 Options.delayed_write_rate : 16777216
+2021/03/13-21:23:10.647052 7f3e1fd1ea80 Options.max_total_wal_size: 0
+2021/03/13-21:23:10.647052 7f3e1fd1ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:23:10.647053 7f3e1fd1ea80 Options.stats_dump_period_sec: 600
+2021/03/13-21:23:10.647054 7f3e1fd1ea80 Options.max_open_files: -1
+2021/03/13-21:23:10.647054 7f3e1fd1ea80 Options.bytes_per_sync: 0
+2021/03/13-21:23:10.647055 7f3e1fd1ea80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:23:10.647055 7f3e1fd1ea80 Options.compaction_readahead_size: 0
+2021/03/13-21:23:10.647056 7f3e1fd1ea80 Compression algorithms supported:
+2021/03/13-21:23:10.647056 7f3e1fd1ea80 Snappy supported: 1
+2021/03/13-21:23:10.647057 7f3e1fd1ea80 Zlib supported: 1
+2021/03/13-21:23:10.647057 7f3e1fd1ea80 Bzip supported: 1
+2021/03/13-21:23:10.647058 7f3e1fd1ea80 LZ4 supported: 1
+2021/03/13-21:23:10.647059 7f3e1fd1ea80 ZSTDNotFinal supported: 1
+2021/03/13-21:23:10.647062 7f3e1fd1ea80 ZSTD supported: 1
+2021/03/13-21:23:10.647066 7f3e1fd1ea80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:23:10.647067 7f3e1fd1ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:23:10.647162 7f3e1fd1ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:23:10.647215 7f3e1fd1ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:23:10.647217 7f3e1fd1ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:23:10.647218 7f3e1fd1ea80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:23:10.647219 7f3e1fd1ea80 Options.compaction_filter: None
+2021/03/13-21:23:10.647219 7f3e1fd1ea80 Options.compaction_filter_factory: None
+2021/03/13-21:23:10.647220 7f3e1fd1ea80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:23:10.647221 7f3e1fd1ea80 Options.table_factory: BlockBasedTable
+2021/03/13-21:23:10.647234 7f3e1fd1ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x191c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1901c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:23:10.647235 7f3e1fd1ea80 Options.write_buffer_size: 134217728
+2021/03/13-21:23:10.647235 7f3e1fd1ea80 Options.max_write_buffer_number: 6
+2021/03/13-21:23:10.647236 7f3e1fd1ea80 Options.compression[0]: NoCompression
+2021/03/13-21:23:10.647237 7f3e1fd1ea80 Options.compression[1]: NoCompression
+2021/03/13-21:23:10.647242 7f3e1fd1ea80 Options.compression[2]: Snappy
+2021/03/13-21:23:10.647243 7f3e1fd1ea80 Options.compression[3]: Snappy
+2021/03/13-21:23:10.647244 7f3e1fd1ea80 Options.compression[4]: Snappy
+2021/03/13-21:23:10.647245 7f3e1fd1ea80 Options.compression[5]: Snappy
+2021/03/13-21:23:10.647245 7f3e1fd1ea80 Options.compression[6]: Snappy
+2021/03/13-21:23:10.647246 7f3e1fd1ea80 Options.bottommost_compression: Disabled
+2021/03/13-21:23:10.647247 7f3e1fd1ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:23:10.647247 7f3e1fd1ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:23:10.647248 7f3e1fd1ea80 Options.num_levels: 7
+2021/03/13-21:23:10.647248 7f3e1fd1ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:23:10.647249 7f3e1fd1ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:23:10.647249 7f3e1fd1ea80 Options.compression_opts.window_bits: -14
+2021/03/13-21:23:10.647250 7f3e1fd1ea80 Options.compression_opts.level: -1
+2021/03/13-21:23:10.647251 7f3e1fd1ea80 Options.compression_opts.strategy: 0
+2021/03/13-21:23:10.647251 7f3e1fd1ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:23:10.647252 7f3e1fd1ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:23:10.647252 7f3e1fd1ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:23:10.647253 7f3e1fd1ea80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:23:10.647253 7f3e1fd1ea80 Options.target_file_size_base: 67108864
+2021/03/13-21:23:10.647254 7f3e1fd1ea80 Options.target_file_size_multiplier: 1
+2021/03/13-21:23:10.647255 7f3e1fd1ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:23:10.647255 7f3e1fd1ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:23:10.647256 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:23:10.647257 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:23:10.647266 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:23:10.647267 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:23:10.647267 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:23:10.647268 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:23:10.647268 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:23:10.647269 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:23:10.647270 7f3e1fd1ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:23:10.647270 7f3e1fd1ea80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:23:10.647271 7f3e1fd1ea80 Options.arena_block_size: 16777216
+2021/03/13-21:23:10.647271 7f3e1fd1ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:23:10.647272 7f3e1fd1ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:23:10.647273 7f3e1fd1ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:23:10.647273 7f3e1fd1ea80 Options.disable_auto_compactions: 0
+2021/03/13-21:23:10.647275 7f3e1fd1ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:23:10.647275 7f3e1fd1ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:23:10.647276 7f3e1fd1ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:23:10.647277 7f3e1fd1ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:23:10.647277 7f3e1fd1ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:23:10.647278 7f3e1fd1ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:23:10.647278 7f3e1fd1ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:23:10.647279 7f3e1fd1ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:23:10.647280 7f3e1fd1ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:23:10.647280 7f3e1fd1ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:23:10.647281 7f3e1fd1ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:23:10.647282 7f3e1fd1ea80 Options.table_properties_collectors:
+2021/03/13-21:23:10.647282 7f3e1fd1ea80 Options.inplace_update_support: 0
+2021/03/13-21:23:10.647283 7f3e1fd1ea80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:23:10.647283 7f3e1fd1ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:23:10.647284 7f3e1fd1ea80 Options.memtable_huge_page_size: 0
+2021/03/13-21:23:10.647285 7f3e1fd1ea80 Options.bloom_locality: 0
+2021/03/13-21:23:10.647285 7f3e1fd1ea80 Options.max_successive_merges: 0
+2021/03/13-21:23:10.647286 7f3e1fd1ea80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:23:10.647286 7f3e1fd1ea80 Options.paranoid_file_checks: 0
+2021/03/13-21:23:10.647287 7f3e1fd1ea80 Options.force_consistency_checks: 0
+2021/03/13-21:23:10.647287 7f3e1fd1ea80 Options.report_bg_io_stats: 0
+2021/03/13-21:23:10.647664 7f3e1fd1ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:23:10.647666 7f3e1fd1ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:23:10.647727 7f3e1fd1ea80 EVENT_LOG_v1 {"time_micros": 1615666990647717, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:23:10.647732 7f3e1fd1ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:23:11.360671 7f3e1fd1ea80 EVENT_LOG_v1 {"time_micros": 1615666991360667, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615667020703515 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667020703515
new file mode 100644
index 0000000..f9f6899
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667020703515
@@ -0,0 +1,186 @@
+2021/03/13-21:23:11.373432 7f3e1fd1ea80 RocksDB version: 5.11.3
+2021/03/13-21:23:11.373491 7f3e1fd1ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:23:11.373492 7f3e1fd1ea80 Compile date Mar 13 2021
+2021/03/13-21:23:11.373495 7f3e1fd1ea80 DB SUMMARY
+2021/03/13-21:23:11.373523 7f3e1fd1ea80 CURRENT file: CURRENT
+2021/03/13-21:23:11.373524 7f3e1fd1ea80 IDENTITY file: IDENTITY
+2021/03/13-21:23:11.373527 7f3e1fd1ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:23:11.373529 7f3e1fd1ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:23:11.373530 7f3e1fd1ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:23:11.373531 7f3e1fd1ea80 Options.error_if_exists: 0
+2021/03/13-21:23:11.373532 7f3e1fd1ea80 Options.create_if_missing: 1
+2021/03/13-21:23:11.373533 7f3e1fd1ea80 Options.paranoid_checks: 1
+2021/03/13-21:23:11.373533 7f3e1fd1ea80 Options.env: 0x7f3e206d8080
+2021/03/13-21:23:11.373534 7f3e1fd1ea80 Options.info_log: 0x1924c80
+2021/03/13-21:23:11.373535 7f3e1fd1ea80 Options.max_file_opening_threads: 16
+2021/03/13-21:23:11.373535 7f3e1fd1ea80 Options.statistics: (nil)
+2021/03/13-21:23:11.373536 7f3e1fd1ea80 Options.use_fsync: 0
+2021/03/13-21:23:11.373536 7f3e1fd1ea80 Options.max_log_file_size: 0
+2021/03/13-21:23:11.373537 7f3e1fd1ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:23:11.373538 7f3e1fd1ea80 Options.log_file_time_to_roll: 0
+2021/03/13-21:23:11.373538 7f3e1fd1ea80 Options.keep_log_file_num: 1000
+2021/03/13-21:23:11.373539 7f3e1fd1ea80 Options.recycle_log_file_num: 0
+2021/03/13-21:23:11.373539 7f3e1fd1ea80 Options.allow_fallocate: 1
+2021/03/13-21:23:11.373540 7f3e1fd1ea80 Options.allow_mmap_reads: 0
+2021/03/13-21:23:11.373541 7f3e1fd1ea80 Options.allow_mmap_writes: 0
+2021/03/13-21:23:11.373541 7f3e1fd1ea80 Options.use_direct_reads: 0
+2021/03/13-21:23:11.373542 7f3e1fd1ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:23:11.373542 7f3e1fd1ea80 Options.create_missing_column_families: 0
+2021/03/13-21:23:11.373543 7f3e1fd1ea80 Options.db_log_dir:
+2021/03/13-21:23:11.373543 7f3e1fd1ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:23:11.373544 7f3e1fd1ea80 Options.table_cache_numshardbits: 6
+2021/03/13-21:23:11.373544 7f3e1fd1ea80 Options.max_subcompactions: 1
+2021/03/13-21:23:11.373545 7f3e1fd1ea80 Options.max_background_flushes: -1
+2021/03/13-21:23:11.373546 7f3e1fd1ea80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:23:11.373546 7f3e1fd1ea80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:23:11.373547 7f3e1fd1ea80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:23:11.373547 7f3e1fd1ea80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:23:11.373548 7f3e1fd1ea80 Options.advise_random_on_open: 1
+2021/03/13-21:23:11.373548 7f3e1fd1ea80 Options.db_write_buffer_size: 0
+2021/03/13-21:23:11.373549 7f3e1fd1ea80 Options.write_buffer_manager: 0x190cb90
+2021/03/13-21:23:11.373550 7f3e1fd1ea80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:23:11.373550 7f3e1fd1ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:23:11.373551 7f3e1fd1ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:23:11.373551 7f3e1fd1ea80 Options.use_adaptive_mutex: 0
+2021/03/13-21:23:11.373552 7f3e1fd1ea80 Options.rate_limiter: (nil)
+2021/03/13-21:23:11.373553 7f3e1fd1ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:23:11.373560 7f3e1fd1ea80 Options.wal_recovery_mode: 2
+2021/03/13-21:23:11.373561 7f3e1fd1ea80 Options.enable_thread_tracking: 0
+2021/03/13-21:23:11.373562 7f3e1fd1ea80 Options.enable_pipelined_write: 0
+2021/03/13-21:23:11.373562 7f3e1fd1ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:23:11.373563 7f3e1fd1ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:23:11.373563 7f3e1fd1ea80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:23:11.373564 7f3e1fd1ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:23:11.373564 7f3e1fd1ea80 Options.row_cache: None
+2021/03/13-21:23:11.373565 7f3e1fd1ea80 Options.wal_filter: None
+2021/03/13-21:23:11.373565 7f3e1fd1ea80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:23:11.373566 7f3e1fd1ea80 Options.allow_ingest_behind: 0
+2021/03/13-21:23:11.373567 7f3e1fd1ea80 Options.preserve_deletes: 0
+2021/03/13-21:23:11.373567 7f3e1fd1ea80 Options.two_write_queues: 0
+2021/03/13-21:23:11.373568 7f3e1fd1ea80 Options.manual_wal_flush: 0
+2021/03/13-21:23:11.373569 7f3e1fd1ea80 Options.max_background_jobs: 16
+2021/03/13-21:23:11.373569 7f3e1fd1ea80 Options.max_background_compactions: -1
+2021/03/13-21:23:11.373570 7f3e1fd1ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:23:11.373570 7f3e1fd1ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:23:11.373571 7f3e1fd1ea80 Options.delayed_write_rate : 16777216
+2021/03/13-21:23:11.373572 7f3e1fd1ea80 Options.max_total_wal_size: 0
+2021/03/13-21:23:11.373572 7f3e1fd1ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:23:11.373573 7f3e1fd1ea80 Options.stats_dump_period_sec: 600
+2021/03/13-21:23:11.373573 7f3e1fd1ea80 Options.max_open_files: -1
+2021/03/13-21:23:11.373574 7f3e1fd1ea80 Options.bytes_per_sync: 0
+2021/03/13-21:23:11.373574 7f3e1fd1ea80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:23:11.373575 7f3e1fd1ea80 Options.compaction_readahead_size: 0
+2021/03/13-21:23:11.373575 7f3e1fd1ea80 Compression algorithms supported:
+2021/03/13-21:23:11.373576 7f3e1fd1ea80 Snappy supported: 1
+2021/03/13-21:23:11.373577 7f3e1fd1ea80 Zlib supported: 1
+2021/03/13-21:23:11.373577 7f3e1fd1ea80 Bzip supported: 1
+2021/03/13-21:23:11.373578 7f3e1fd1ea80 LZ4 supported: 1
+2021/03/13-21:23:11.373578 7f3e1fd1ea80 ZSTDNotFinal supported: 1
+2021/03/13-21:23:11.373582 7f3e1fd1ea80 ZSTD supported: 1
+2021/03/13-21:23:11.373585 7f3e1fd1ea80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:23:11.373586 7f3e1fd1ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:23:11.373680 7f3e1fd1ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:23:11.373733 7f3e1fd1ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:23:11.373735 7f3e1fd1ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:23:11.373736 7f3e1fd1ea80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:23:11.373736 7f3e1fd1ea80 Options.compaction_filter: None
+2021/03/13-21:23:11.373737 7f3e1fd1ea80 Options.compaction_filter_factory: None
+2021/03/13-21:23:11.373738 7f3e1fd1ea80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:23:11.373738 7f3e1fd1ea80 Options.table_factory: BlockBasedTable
+2021/03/13-21:23:11.373752 7f3e1fd1ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x191c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1901c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:23:11.373753 7f3e1fd1ea80 Options.write_buffer_size: 134217728
+2021/03/13-21:23:11.373753 7f3e1fd1ea80 Options.max_write_buffer_number: 6
+2021/03/13-21:23:11.373754 7f3e1fd1ea80 Options.compression[0]: NoCompression
+2021/03/13-21:23:11.373755 7f3e1fd1ea80 Options.compression[1]: NoCompression
+2021/03/13-21:23:11.373755 7f3e1fd1ea80 Options.compression[2]: Snappy
+2021/03/13-21:23:11.373756 7f3e1fd1ea80 Options.compression[3]: Snappy
+2021/03/13-21:23:11.373756 7f3e1fd1ea80 Options.compression[4]: Snappy
+2021/03/13-21:23:11.373757 7f3e1fd1ea80 Options.compression[5]: Snappy
+2021/03/13-21:23:11.373757 7f3e1fd1ea80 Options.compression[6]: Snappy
+2021/03/13-21:23:11.373758 7f3e1fd1ea80 Options.bottommost_compression: Disabled
+2021/03/13-21:23:11.373759 7f3e1fd1ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:23:11.373759 7f3e1fd1ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:23:11.373760 7f3e1fd1ea80 Options.num_levels: 7
+2021/03/13-21:23:11.373761 7f3e1fd1ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:23:11.373761 7f3e1fd1ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:23:11.373762 7f3e1fd1ea80 Options.compression_opts.window_bits: -14
+2021/03/13-21:23:11.373762 7f3e1fd1ea80 Options.compression_opts.level: -1
+2021/03/13-21:23:11.373763 7f3e1fd1ea80 Options.compression_opts.strategy: 0
+2021/03/13-21:23:11.373764 7f3e1fd1ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:23:11.373764 7f3e1fd1ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:23:11.373765 7f3e1fd1ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:23:11.373765 7f3e1fd1ea80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:23:11.373766 7f3e1fd1ea80 Options.target_file_size_base: 67108864
+2021/03/13-21:23:11.373766 7f3e1fd1ea80 Options.target_file_size_multiplier: 1
+2021/03/13-21:23:11.373767 7f3e1fd1ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:23:11.373767 7f3e1fd1ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:23:11.373768 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:23:11.373770 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:23:11.373777 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:23:11.373778 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:23:11.373778 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:23:11.373779 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:23:11.373779 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:23:11.373780 7f3e1fd1ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:23:11.373781 7f3e1fd1ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:23:11.373781 7f3e1fd1ea80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:23:11.373782 7f3e1fd1ea80 Options.arena_block_size: 16777216
+2021/03/13-21:23:11.373782 7f3e1fd1ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:23:11.373783 7f3e1fd1ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:23:11.373784 7f3e1fd1ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:23:11.373784 7f3e1fd1ea80 Options.disable_auto_compactions: 0
+2021/03/13-21:23:11.373786 7f3e1fd1ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:23:11.373786 7f3e1fd1ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:23:11.373787 7f3e1fd1ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:23:11.373788 7f3e1fd1ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:23:11.373788 7f3e1fd1ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:23:11.373789 7f3e1fd1ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:23:11.373789 7f3e1fd1ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:23:11.373790 7f3e1fd1ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:23:11.373791 7f3e1fd1ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:23:11.373791 7f3e1fd1ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:23:11.373792 7f3e1fd1ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:23:11.373793 7f3e1fd1ea80 Options.table_properties_collectors:
+2021/03/13-21:23:11.373793 7f3e1fd1ea80 Options.inplace_update_support: 0
+2021/03/13-21:23:11.373794 7f3e1fd1ea80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:23:11.373794 7f3e1fd1ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:23:11.373795 7f3e1fd1ea80 Options.memtable_huge_page_size: 0
+2021/03/13-21:23:11.373796 7f3e1fd1ea80 Options.bloom_locality: 0
+2021/03/13-21:23:11.373796 7f3e1fd1ea80 Options.max_successive_merges: 0
+2021/03/13-21:23:11.373797 7f3e1fd1ea80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:23:11.373797 7f3e1fd1ea80 Options.paranoid_file_checks: 0
+2021/03/13-21:23:11.373798 7f3e1fd1ea80 Options.force_consistency_checks: 0
+2021/03/13-21:23:11.373799 7f3e1fd1ea80 Options.report_bg_io_stats: 0
+2021/03/13-21:23:11.374158 7f3e1fd1ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:23:11.374160 7f3e1fd1ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:23:11.374219 7f3e1fd1ea80 EVENT_LOG_v1 {"time_micros": 1615666991374209, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:23:11.374224 7f3e1fd1ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:23:12.074371 7f3e1fd1ea80 EVENT_LOG_v1 {"time_micros": 1615666992074368, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615667021434121 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667021434121
new file mode 100644
index 0000000..9654b6f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667021434121
@@ -0,0 +1,186 @@
+2021/03/13-21:23:40.703851 7f8344e21a80 RocksDB version: 5.11.3
+2021/03/13-21:23:40.703915 7f8344e21a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:23:40.703916 7f8344e21a80 Compile date Mar 13 2021
+2021/03/13-21:23:40.703919 7f8344e21a80 DB SUMMARY
+2021/03/13-21:23:40.703951 7f8344e21a80 CURRENT file: CURRENT
+2021/03/13-21:23:40.703952 7f8344e21a80 IDENTITY file: IDENTITY
+2021/03/13-21:23:40.703956 7f8344e21a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:23:40.703957 7f8344e21a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:23:40.703958 7f8344e21a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:23:40.703960 7f8344e21a80 Options.error_if_exists: 0
+2021/03/13-21:23:40.703961 7f8344e21a80 Options.create_if_missing: 1
+2021/03/13-21:23:40.703961 7f8344e21a80 Options.paranoid_checks: 1
+2021/03/13-21:23:40.703962 7f8344e21a80 Options.env: 0x7f83457db080
+2021/03/13-21:23:40.703963 7f8344e21a80 Options.info_log: 0x2840c80
+2021/03/13-21:23:40.703963 7f8344e21a80 Options.max_file_opening_threads: 16
+2021/03/13-21:23:40.703964 7f8344e21a80 Options.statistics: (nil)
+2021/03/13-21:23:40.703965 7f8344e21a80 Options.use_fsync: 0
+2021/03/13-21:23:40.703965 7f8344e21a80 Options.max_log_file_size: 0
+2021/03/13-21:23:40.703966 7f8344e21a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:23:40.703967 7f8344e21a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:23:40.703967 7f8344e21a80 Options.keep_log_file_num: 1000
+2021/03/13-21:23:40.703968 7f8344e21a80 Options.recycle_log_file_num: 0
+2021/03/13-21:23:40.703969 7f8344e21a80 Options.allow_fallocate: 1
+2021/03/13-21:23:40.703969 7f8344e21a80 Options.allow_mmap_reads: 0
+2021/03/13-21:23:40.703970 7f8344e21a80 Options.allow_mmap_writes: 0
+2021/03/13-21:23:40.703970 7f8344e21a80 Options.use_direct_reads: 0
+2021/03/13-21:23:40.703971 7f8344e21a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:23:40.703972 7f8344e21a80 Options.create_missing_column_families: 0
+2021/03/13-21:23:40.703972 7f8344e21a80 Options.db_log_dir:
+2021/03/13-21:23:40.703973 7f8344e21a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:23:40.703973 7f8344e21a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:23:40.703974 7f8344e21a80 Options.max_subcompactions: 1
+2021/03/13-21:23:40.703975 7f8344e21a80 Options.max_background_flushes: -1
+2021/03/13-21:23:40.703975 7f8344e21a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:23:40.703976 7f8344e21a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:23:40.703976 7f8344e21a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:23:40.703977 7f8344e21a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:23:40.703978 7f8344e21a80 Options.advise_random_on_open: 1
+2021/03/13-21:23:40.703978 7f8344e21a80 Options.db_write_buffer_size: 0
+2021/03/13-21:23:40.703979 7f8344e21a80 Options.write_buffer_manager: 0x2828b90
+2021/03/13-21:23:40.703980 7f8344e21a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:23:40.703980 7f8344e21a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:23:40.703981 7f8344e21a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:23:40.703981 7f8344e21a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:23:40.703982 7f8344e21a80 Options.rate_limiter: (nil)
+2021/03/13-21:23:40.703983 7f8344e21a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:23:40.703991 7f8344e21a80 Options.wal_recovery_mode: 2
+2021/03/13-21:23:40.703992 7f8344e21a80 Options.enable_thread_tracking: 0
+2021/03/13-21:23:40.703992 7f8344e21a80 Options.enable_pipelined_write: 0
+2021/03/13-21:23:40.703993 7f8344e21a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:23:40.703993 7f8344e21a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:23:40.703994 7f8344e21a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:23:40.703995 7f8344e21a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:23:40.703995 7f8344e21a80 Options.row_cache: None
+2021/03/13-21:23:40.703996 7f8344e21a80 Options.wal_filter: None
+2021/03/13-21:23:40.703997 7f8344e21a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:23:40.703997 7f8344e21a80 Options.allow_ingest_behind: 0
+2021/03/13-21:23:40.703998 7f8344e21a80 Options.preserve_deletes: 0
+2021/03/13-21:23:40.703998 7f8344e21a80 Options.two_write_queues: 0
+2021/03/13-21:23:40.703999 7f8344e21a80 Options.manual_wal_flush: 0
+2021/03/13-21:23:40.704000 7f8344e21a80 Options.max_background_jobs: 16
+2021/03/13-21:23:40.704001 7f8344e21a80 Options.max_background_compactions: -1
+2021/03/13-21:23:40.704002 7f8344e21a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:23:40.704002 7f8344e21a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:23:40.704003 7f8344e21a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:23:40.704004 7f8344e21a80 Options.max_total_wal_size: 0
+2021/03/13-21:23:40.704004 7f8344e21a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:23:40.704005 7f8344e21a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:23:40.704005 7f8344e21a80 Options.max_open_files: -1
+2021/03/13-21:23:40.704006 7f8344e21a80 Options.bytes_per_sync: 0
+2021/03/13-21:23:40.704007 7f8344e21a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:23:40.704007 7f8344e21a80 Options.compaction_readahead_size: 0
+2021/03/13-21:23:40.704008 7f8344e21a80 Compression algorithms supported:
+2021/03/13-21:23:40.704008 7f8344e21a80 Snappy supported: 1
+2021/03/13-21:23:40.704009 7f8344e21a80 Zlib supported: 1
+2021/03/13-21:23:40.704010 7f8344e21a80 Bzip supported: 1
+2021/03/13-21:23:40.704010 7f8344e21a80 LZ4 supported: 1
+2021/03/13-21:23:40.704011 7f8344e21a80 ZSTDNotFinal supported: 1
+2021/03/13-21:23:40.704015 7f8344e21a80 ZSTD supported: 1
+2021/03/13-21:23:40.704019 7f8344e21a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:23:40.704020 7f8344e21a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:23:40.704123 7f8344e21a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:23:40.704182 7f8344e21a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:23:40.704184 7f8344e21a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:23:40.704185 7f8344e21a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:23:40.704186 7f8344e21a80 Options.compaction_filter: None
+2021/03/13-21:23:40.704186 7f8344e21a80 Options.compaction_filter_factory: None
+2021/03/13-21:23:40.704187 7f8344e21a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:23:40.704188 7f8344e21a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:23:40.704202 7f8344e21a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2838520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x281dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:23:40.704203 7f8344e21a80 Options.write_buffer_size: 134217728
+2021/03/13-21:23:40.704203 7f8344e21a80 Options.max_write_buffer_number: 6
+2021/03/13-21:23:40.704204 7f8344e21a80 Options.compression[0]: NoCompression
+2021/03/13-21:23:40.704205 7f8344e21a80 Options.compression[1]: NoCompression
+2021/03/13-21:23:40.704206 7f8344e21a80 Options.compression[2]: Snappy
+2021/03/13-21:23:40.704206 7f8344e21a80 Options.compression[3]: Snappy
+2021/03/13-21:23:40.704207 7f8344e21a80 Options.compression[4]: Snappy
+2021/03/13-21:23:40.704207 7f8344e21a80 Options.compression[5]: Snappy
+2021/03/13-21:23:40.704208 7f8344e21a80 Options.compression[6]: Snappy
+2021/03/13-21:23:40.704209 7f8344e21a80 Options.bottommost_compression: Disabled
+2021/03/13-21:23:40.704210 7f8344e21a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:23:40.704210 7f8344e21a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:23:40.704211 7f8344e21a80 Options.num_levels: 7
+2021/03/13-21:23:40.704211 7f8344e21a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:23:40.704212 7f8344e21a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:23:40.704213 7f8344e21a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:23:40.704213 7f8344e21a80 Options.compression_opts.level: -1
+2021/03/13-21:23:40.704214 7f8344e21a80 Options.compression_opts.strategy: 0
+2021/03/13-21:23:40.704215 7f8344e21a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:23:40.704215 7f8344e21a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:23:40.704216 7f8344e21a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:23:40.704216 7f8344e21a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:23:40.704217 7f8344e21a80 Options.target_file_size_base: 67108864
+2021/03/13-21:23:40.704218 7f8344e21a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:23:40.704218 7f8344e21a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:23:40.704219 7f8344e21a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:23:40.704219 7f8344e21a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:23:40.704221 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:23:40.704230 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:23:40.704231 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:23:40.704231 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:23:40.704232 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:23:40.704232 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:23:40.704233 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:23:40.704233 7f8344e21a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:23:40.704234 7f8344e21a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:23:40.704235 7f8344e21a80 Options.arena_block_size: 16777216
+2021/03/13-21:23:40.704236 7f8344e21a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:23:40.704236 7f8344e21a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:23:40.704237 7f8344e21a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:23:40.704242 7f8344e21a80 Options.disable_auto_compactions: 0
+2021/03/13-21:23:40.704244 7f8344e21a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:23:40.704245 7f8344e21a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:23:40.704246 7f8344e21a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:23:40.704246 7f8344e21a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:23:40.704247 7f8344e21a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:23:40.704248 7f8344e21a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:23:40.704248 7f8344e21a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:23:40.704249 7f8344e21a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:23:40.704250 7f8344e21a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:23:40.704250 7f8344e21a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:23:40.704251 7f8344e21a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:23:40.704252 7f8344e21a80 Options.table_properties_collectors:
+2021/03/13-21:23:40.704252 7f8344e21a80 Options.inplace_update_support: 0
+2021/03/13-21:23:40.704253 7f8344e21a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:23:40.704254 7f8344e21a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:23:40.704254 7f8344e21a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:23:40.704255 7f8344e21a80 Options.bloom_locality: 0
+2021/03/13-21:23:40.704256 7f8344e21a80 Options.max_successive_merges: 0
+2021/03/13-21:23:40.704256 7f8344e21a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:23:40.704257 7f8344e21a80 Options.paranoid_file_checks: 0
+2021/03/13-21:23:40.704257 7f8344e21a80 Options.force_consistency_checks: 0
+2021/03/13-21:23:40.704258 7f8344e21a80 Options.report_bg_io_stats: 0
+2021/03/13-21:23:40.704703 7f8344e21a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:23:40.704706 7f8344e21a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:23:40.704792 7f8344e21a80 EVENT_LOG_v1 {"time_micros": 1615667020704772, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:23:40.704801 7f8344e21a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:23:41.422310 7f8344e21a80 EVENT_LOG_v1 {"time_micros": 1615667021422306, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615667022157369 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667022157369
new file mode 100644
index 0000000..c7b3607
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667022157369
@@ -0,0 +1,186 @@
+2021/03/13-21:23:41.434426 7f8344e21a80 RocksDB version: 5.11.3
+2021/03/13-21:23:41.434482 7f8344e21a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:23:41.434484 7f8344e21a80 Compile date Mar 13 2021
+2021/03/13-21:23:41.434486 7f8344e21a80 DB SUMMARY
+2021/03/13-21:23:41.434517 7f8344e21a80 CURRENT file: CURRENT
+2021/03/13-21:23:41.434518 7f8344e21a80 IDENTITY file: IDENTITY
+2021/03/13-21:23:41.434526 7f8344e21a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:23:41.434527 7f8344e21a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:23:41.434545 7f8344e21a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:23:41.434547 7f8344e21a80 Options.error_if_exists: 0
+2021/03/13-21:23:41.434548 7f8344e21a80 Options.create_if_missing: 1
+2021/03/13-21:23:41.434548 7f8344e21a80 Options.paranoid_checks: 1
+2021/03/13-21:23:41.434549 7f8344e21a80 Options.env: 0x7f83457db080
+2021/03/13-21:23:41.434550 7f8344e21a80 Options.info_log: 0x2840c80
+2021/03/13-21:23:41.434550 7f8344e21a80 Options.max_file_opening_threads: 16
+2021/03/13-21:23:41.434551 7f8344e21a80 Options.statistics: (nil)
+2021/03/13-21:23:41.434552 7f8344e21a80 Options.use_fsync: 0
+2021/03/13-21:23:41.434552 7f8344e21a80 Options.max_log_file_size: 0
+2021/03/13-21:23:41.434553 7f8344e21a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:23:41.434553 7f8344e21a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:23:41.434554 7f8344e21a80 Options.keep_log_file_num: 1000
+2021/03/13-21:23:41.434554 7f8344e21a80 Options.recycle_log_file_num: 0
+2021/03/13-21:23:41.434555 7f8344e21a80 Options.allow_fallocate: 1
+2021/03/13-21:23:41.434556 7f8344e21a80 Options.allow_mmap_reads: 0
+2021/03/13-21:23:41.434556 7f8344e21a80 Options.allow_mmap_writes: 0
+2021/03/13-21:23:41.434557 7f8344e21a80 Options.use_direct_reads: 0
+2021/03/13-21:23:41.434557 7f8344e21a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:23:41.434558 7f8344e21a80 Options.create_missing_column_families: 0
+2021/03/13-21:23:41.434558 7f8344e21a80 Options.db_log_dir:
+2021/03/13-21:23:41.434559 7f8344e21a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:23:41.434559 7f8344e21a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:23:41.434560 7f8344e21a80 Options.max_subcompactions: 1
+2021/03/13-21:23:41.434561 7f8344e21a80 Options.max_background_flushes: -1
+2021/03/13-21:23:41.434561 7f8344e21a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:23:41.434562 7f8344e21a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:23:41.434562 7f8344e21a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:23:41.434563 7f8344e21a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:23:41.434563 7f8344e21a80 Options.advise_random_on_open: 1
+2021/03/13-21:23:41.434564 7f8344e21a80 Options.db_write_buffer_size: 0
+2021/03/13-21:23:41.434565 7f8344e21a80 Options.write_buffer_manager: 0x2828b90
+2021/03/13-21:23:41.434565 7f8344e21a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:23:41.434566 7f8344e21a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:23:41.434566 7f8344e21a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:23:41.434567 7f8344e21a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:23:41.434567 7f8344e21a80 Options.rate_limiter: (nil)
+2021/03/13-21:23:41.434569 7f8344e21a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:23:41.434576 7f8344e21a80 Options.wal_recovery_mode: 2
+2021/03/13-21:23:41.434577 7f8344e21a80 Options.enable_thread_tracking: 0
+2021/03/13-21:23:41.434577 7f8344e21a80 Options.enable_pipelined_write: 0
+2021/03/13-21:23:41.434578 7f8344e21a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:23:41.434578 7f8344e21a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:23:41.434579 7f8344e21a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:23:41.434579 7f8344e21a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:23:41.434580 7f8344e21a80 Options.row_cache: None
+2021/03/13-21:23:41.434581 7f8344e21a80 Options.wal_filter: None
+2021/03/13-21:23:41.434581 7f8344e21a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:23:41.434582 7f8344e21a80 Options.allow_ingest_behind: 0
+2021/03/13-21:23:41.434582 7f8344e21a80 Options.preserve_deletes: 0
+2021/03/13-21:23:41.434583 7f8344e21a80 Options.two_write_queues: 0
+2021/03/13-21:23:41.434583 7f8344e21a80 Options.manual_wal_flush: 0
+2021/03/13-21:23:41.434584 7f8344e21a80 Options.max_background_jobs: 16
+2021/03/13-21:23:41.434585 7f8344e21a80 Options.max_background_compactions: -1
+2021/03/13-21:23:41.434586 7f8344e21a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:23:41.434586 7f8344e21a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:23:41.434587 7f8344e21a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:23:41.434587 7f8344e21a80 Options.max_total_wal_size: 0
+2021/03/13-21:23:41.434588 7f8344e21a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:23:41.434588 7f8344e21a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:23:41.434589 7f8344e21a80 Options.max_open_files: -1
+2021/03/13-21:23:41.434590 7f8344e21a80 Options.bytes_per_sync: 0
+2021/03/13-21:23:41.434590 7f8344e21a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:23:41.434591 7f8344e21a80 Options.compaction_readahead_size: 0
+2021/03/13-21:23:41.434591 7f8344e21a80 Compression algorithms supported:
+2021/03/13-21:23:41.434592 7f8344e21a80 Snappy supported: 1
+2021/03/13-21:23:41.434592 7f8344e21a80 Zlib supported: 1
+2021/03/13-21:23:41.434593 7f8344e21a80 Bzip supported: 1
+2021/03/13-21:23:41.434593 7f8344e21a80 LZ4 supported: 1
+2021/03/13-21:23:41.434594 7f8344e21a80 ZSTDNotFinal supported: 1
+2021/03/13-21:23:41.434613 7f8344e21a80 ZSTD supported: 1
+2021/03/13-21:23:41.434616 7f8344e21a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:23:41.434617 7f8344e21a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:23:41.434703 7f8344e21a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:23:41.434754 7f8344e21a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:23:41.434755 7f8344e21a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:23:41.434756 7f8344e21a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:23:41.434757 7f8344e21a80 Options.compaction_filter: None
+2021/03/13-21:23:41.434757 7f8344e21a80 Options.compaction_filter_factory: None
+2021/03/13-21:23:41.434758 7f8344e21a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:23:41.434759 7f8344e21a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:23:41.434771 7f8344e21a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2838520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x281dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:23:41.434772 7f8344e21a80 Options.write_buffer_size: 134217728
+2021/03/13-21:23:41.434773 7f8344e21a80 Options.max_write_buffer_number: 6
+2021/03/13-21:23:41.434773 7f8344e21a80 Options.compression[0]: NoCompression
+2021/03/13-21:23:41.434774 7f8344e21a80 Options.compression[1]: NoCompression
+2021/03/13-21:23:41.434775 7f8344e21a80 Options.compression[2]: Snappy
+2021/03/13-21:23:41.434775 7f8344e21a80 Options.compression[3]: Snappy
+2021/03/13-21:23:41.434776 7f8344e21a80 Options.compression[4]: Snappy
+2021/03/13-21:23:41.434776 7f8344e21a80 Options.compression[5]: Snappy
+2021/03/13-21:23:41.434777 7f8344e21a80 Options.compression[6]: Snappy
+2021/03/13-21:23:41.434777 7f8344e21a80 Options.bottommost_compression: Disabled
+2021/03/13-21:23:41.434778 7f8344e21a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:23:41.434779 7f8344e21a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:23:41.434779 7f8344e21a80 Options.num_levels: 7
+2021/03/13-21:23:41.434780 7f8344e21a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:23:41.434780 7f8344e21a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:23:41.434781 7f8344e21a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:23:41.434781 7f8344e21a80 Options.compression_opts.level: -1
+2021/03/13-21:23:41.434782 7f8344e21a80 Options.compression_opts.strategy: 0
+2021/03/13-21:23:41.434783 7f8344e21a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:23:41.434783 7f8344e21a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:23:41.434784 7f8344e21a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:23:41.434784 7f8344e21a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:23:41.434785 7f8344e21a80 Options.target_file_size_base: 67108864
+2021/03/13-21:23:41.434785 7f8344e21a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:23:41.434786 7f8344e21a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:23:41.434786 7f8344e21a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:23:41.434787 7f8344e21a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:23:41.434788 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:23:41.434795 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:23:41.434796 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:23:41.434797 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:23:41.434797 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:23:41.434798 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:23:41.434798 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:23:41.434799 7f8344e21a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:23:41.434799 7f8344e21a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:23:41.434800 7f8344e21a80 Options.arena_block_size: 16777216
+2021/03/13-21:23:41.434801 7f8344e21a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:23:41.434801 7f8344e21a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:23:41.434802 7f8344e21a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:23:41.434802 7f8344e21a80 Options.disable_auto_compactions: 0
+2021/03/13-21:23:41.434804 7f8344e21a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:23:41.434805 7f8344e21a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:23:41.434805 7f8344e21a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:23:41.434806 7f8344e21a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:23:41.434806 7f8344e21a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:23:41.434807 7f8344e21a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:23:41.434807 7f8344e21a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:23:41.434808 7f8344e21a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:23:41.434809 7f8344e21a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:23:41.434810 7f8344e21a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:23:41.434810 7f8344e21a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:23:41.434811 7f8344e21a80 Options.table_properties_collectors:
+2021/03/13-21:23:41.434811 7f8344e21a80 Options.inplace_update_support: 0
+2021/03/13-21:23:41.434812 7f8344e21a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:23:41.434812 7f8344e21a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:23:41.434813 7f8344e21a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:23:41.434814 7f8344e21a80 Options.bloom_locality: 0
+2021/03/13-21:23:41.434814 7f8344e21a80 Options.max_successive_merges: 0
+2021/03/13-21:23:41.434815 7f8344e21a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:23:41.434815 7f8344e21a80 Options.paranoid_file_checks: 0
+2021/03/13-21:23:41.434816 7f8344e21a80 Options.force_consistency_checks: 0
+2021/03/13-21:23:41.434816 7f8344e21a80 Options.report_bg_io_stats: 0
+2021/03/13-21:23:41.435217 7f8344e21a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:23:41.435219 7f8344e21a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:23:41.435311 7f8344e21a80 EVENT_LOG_v1 {"time_micros": 1615667021435284, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:23:41.435316 7f8344e21a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:23:42.145334 7f8344e21a80 EVENT_LOG_v1 {"time_micros": 1615667022145330, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615667069096726 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667069096726
new file mode 100644
index 0000000..2706083
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667069096726
@@ -0,0 +1,186 @@
+2021/03/13-21:23:42.157652 7f8344e21a80 RocksDB version: 5.11.3
+2021/03/13-21:23:42.157710 7f8344e21a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:23:42.157712 7f8344e21a80 Compile date Mar 13 2021
+2021/03/13-21:23:42.157714 7f8344e21a80 DB SUMMARY
+2021/03/13-21:23:42.157745 7f8344e21a80 CURRENT file: CURRENT
+2021/03/13-21:23:42.157746 7f8344e21a80 IDENTITY file: IDENTITY
+2021/03/13-21:23:42.157750 7f8344e21a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:23:42.157751 7f8344e21a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:23:42.157752 7f8344e21a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:23:42.157754 7f8344e21a80 Options.error_if_exists: 0
+2021/03/13-21:23:42.157754 7f8344e21a80 Options.create_if_missing: 1
+2021/03/13-21:23:42.157755 7f8344e21a80 Options.paranoid_checks: 1
+2021/03/13-21:23:42.157755 7f8344e21a80 Options.env: 0x7f83457db080
+2021/03/13-21:23:42.157756 7f8344e21a80 Options.info_log: 0x2840c80
+2021/03/13-21:23:42.157757 7f8344e21a80 Options.max_file_opening_threads: 16
+2021/03/13-21:23:42.157757 7f8344e21a80 Options.statistics: (nil)
+2021/03/13-21:23:42.157758 7f8344e21a80 Options.use_fsync: 0
+2021/03/13-21:23:42.157759 7f8344e21a80 Options.max_log_file_size: 0
+2021/03/13-21:23:42.157759 7f8344e21a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:23:42.157760 7f8344e21a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:23:42.157760 7f8344e21a80 Options.keep_log_file_num: 1000
+2021/03/13-21:23:42.157761 7f8344e21a80 Options.recycle_log_file_num: 0
+2021/03/13-21:23:42.157762 7f8344e21a80 Options.allow_fallocate: 1
+2021/03/13-21:23:42.157762 7f8344e21a80 Options.allow_mmap_reads: 0
+2021/03/13-21:23:42.157763 7f8344e21a80 Options.allow_mmap_writes: 0
+2021/03/13-21:23:42.157763 7f8344e21a80 Options.use_direct_reads: 0
+2021/03/13-21:23:42.157764 7f8344e21a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:23:42.157764 7f8344e21a80 Options.create_missing_column_families: 0
+2021/03/13-21:23:42.157765 7f8344e21a80 Options.db_log_dir:
+2021/03/13-21:23:42.157765 7f8344e21a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:23:42.157766 7f8344e21a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:23:42.157766 7f8344e21a80 Options.max_subcompactions: 1
+2021/03/13-21:23:42.157767 7f8344e21a80 Options.max_background_flushes: -1
+2021/03/13-21:23:42.157768 7f8344e21a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:23:42.157768 7f8344e21a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:23:42.157769 7f8344e21a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:23:42.157769 7f8344e21a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:23:42.157770 7f8344e21a80 Options.advise_random_on_open: 1
+2021/03/13-21:23:42.157770 7f8344e21a80 Options.db_write_buffer_size: 0
+2021/03/13-21:23:42.157771 7f8344e21a80 Options.write_buffer_manager: 0x2828b90
+2021/03/13-21:23:42.157772 7f8344e21a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:23:42.157772 7f8344e21a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:23:42.157773 7f8344e21a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:23:42.157773 7f8344e21a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:23:42.157774 7f8344e21a80 Options.rate_limiter: (nil)
+2021/03/13-21:23:42.157775 7f8344e21a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:23:42.157782 7f8344e21a80 Options.wal_recovery_mode: 2
+2021/03/13-21:23:42.157783 7f8344e21a80 Options.enable_thread_tracking: 0
+2021/03/13-21:23:42.157784 7f8344e21a80 Options.enable_pipelined_write: 0
+2021/03/13-21:23:42.157784 7f8344e21a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:23:42.157785 7f8344e21a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:23:42.157785 7f8344e21a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:23:42.157786 7f8344e21a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:23:42.157786 7f8344e21a80 Options.row_cache: None
+2021/03/13-21:23:42.157787 7f8344e21a80 Options.wal_filter: None
+2021/03/13-21:23:42.157788 7f8344e21a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:23:42.157788 7f8344e21a80 Options.allow_ingest_behind: 0
+2021/03/13-21:23:42.157789 7f8344e21a80 Options.preserve_deletes: 0
+2021/03/13-21:23:42.157789 7f8344e21a80 Options.two_write_queues: 0
+2021/03/13-21:23:42.157790 7f8344e21a80 Options.manual_wal_flush: 0
+2021/03/13-21:23:42.157791 7f8344e21a80 Options.max_background_jobs: 16
+2021/03/13-21:23:42.157792 7f8344e21a80 Options.max_background_compactions: -1
+2021/03/13-21:23:42.157792 7f8344e21a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:23:42.157793 7f8344e21a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:23:42.157793 7f8344e21a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:23:42.157794 7f8344e21a80 Options.max_total_wal_size: 0
+2021/03/13-21:23:42.157794 7f8344e21a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:23:42.157795 7f8344e21a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:23:42.157796 7f8344e21a80 Options.max_open_files: -1
+2021/03/13-21:23:42.157796 7f8344e21a80 Options.bytes_per_sync: 0
+2021/03/13-21:23:42.157797 7f8344e21a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:23:42.157797 7f8344e21a80 Options.compaction_readahead_size: 0
+2021/03/13-21:23:42.157798 7f8344e21a80 Compression algorithms supported:
+2021/03/13-21:23:42.157798 7f8344e21a80 Snappy supported: 1
+2021/03/13-21:23:42.157799 7f8344e21a80 Zlib supported: 1
+2021/03/13-21:23:42.157800 7f8344e21a80 Bzip supported: 1
+2021/03/13-21:23:42.157800 7f8344e21a80 LZ4 supported: 1
+2021/03/13-21:23:42.157801 7f8344e21a80 ZSTDNotFinal supported: 1
+2021/03/13-21:23:42.157805 7f8344e21a80 ZSTD supported: 1
+2021/03/13-21:23:42.157808 7f8344e21a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:23:42.157809 7f8344e21a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:23:42.157897 7f8344e21a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:23:42.157950 7f8344e21a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:23:42.157952 7f8344e21a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:23:42.157952 7f8344e21a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:23:42.157953 7f8344e21a80 Options.compaction_filter: None
+2021/03/13-21:23:42.157954 7f8344e21a80 Options.compaction_filter_factory: None
+2021/03/13-21:23:42.157954 7f8344e21a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:23:42.157955 7f8344e21a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:23:42.157968 7f8344e21a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2838520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x281dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:23:42.157969 7f8344e21a80 Options.write_buffer_size: 134217728
+2021/03/13-21:23:42.157970 7f8344e21a80 Options.max_write_buffer_number: 6
+2021/03/13-21:23:42.157970 7f8344e21a80 Options.compression[0]: NoCompression
+2021/03/13-21:23:42.157971 7f8344e21a80 Options.compression[1]: NoCompression
+2021/03/13-21:23:42.157972 7f8344e21a80 Options.compression[2]: Snappy
+2021/03/13-21:23:42.157972 7f8344e21a80 Options.compression[3]: Snappy
+2021/03/13-21:23:42.157973 7f8344e21a80 Options.compression[4]: Snappy
+2021/03/13-21:23:42.157973 7f8344e21a80 Options.compression[5]: Snappy
+2021/03/13-21:23:42.157974 7f8344e21a80 Options.compression[6]: Snappy
+2021/03/13-21:23:42.157975 7f8344e21a80 Options.bottommost_compression: Disabled
+2021/03/13-21:23:42.157975 7f8344e21a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:23:42.157976 7f8344e21a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:23:42.157976 7f8344e21a80 Options.num_levels: 7
+2021/03/13-21:23:42.157977 7f8344e21a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:23:42.157978 7f8344e21a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:23:42.157978 7f8344e21a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:23:42.157979 7f8344e21a80 Options.compression_opts.level: -1
+2021/03/13-21:23:42.157979 7f8344e21a80 Options.compression_opts.strategy: 0
+2021/03/13-21:23:42.157980 7f8344e21a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:23:42.157981 7f8344e21a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:23:42.157981 7f8344e21a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:23:42.157982 7f8344e21a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:23:42.157982 7f8344e21a80 Options.target_file_size_base: 67108864
+2021/03/13-21:23:42.157983 7f8344e21a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:23:42.157983 7f8344e21a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:23:42.157984 7f8344e21a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:23:42.157985 7f8344e21a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:23:42.157986 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:23:42.157993 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:23:42.157994 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:23:42.157995 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:23:42.157995 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:23:42.157996 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:23:42.157996 7f8344e21a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:23:42.157997 7f8344e21a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:23:42.157997 7f8344e21a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:23:42.157998 7f8344e21a80 Options.arena_block_size: 16777216
+2021/03/13-21:23:42.157999 7f8344e21a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:23:42.157999 7f8344e21a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:23:42.158000 7f8344e21a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:23:42.158000 7f8344e21a80 Options.disable_auto_compactions: 0
+2021/03/13-21:23:42.158002 7f8344e21a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:23:42.158003 7f8344e21a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:23:42.158004 7f8344e21a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:23:42.158004 7f8344e21a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:23:42.158005 7f8344e21a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:23:42.158005 7f8344e21a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:23:42.158006 7f8344e21a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:23:42.158007 7f8344e21a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:23:42.158007 7f8344e21a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:23:42.158008 7f8344e21a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:23:42.158008 7f8344e21a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:23:42.158009 7f8344e21a80 Options.table_properties_collectors:
+2021/03/13-21:23:42.158010 7f8344e21a80 Options.inplace_update_support: 0
+2021/03/13-21:23:42.158010 7f8344e21a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:23:42.158011 7f8344e21a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:23:42.158012 7f8344e21a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:23:42.158012 7f8344e21a80 Options.bloom_locality: 0
+2021/03/13-21:23:42.158013 7f8344e21a80 Options.max_successive_merges: 0
+2021/03/13-21:23:42.158013 7f8344e21a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:23:42.158014 7f8344e21a80 Options.paranoid_file_checks: 0
+2021/03/13-21:23:42.158014 7f8344e21a80 Options.force_consistency_checks: 0
+2021/03/13-21:23:42.158015 7f8344e21a80 Options.report_bg_io_stats: 0
+2021/03/13-21:23:42.158388 7f8344e21a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:23:42.158391 7f8344e21a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:23:42.158451 7f8344e21a80 EVENT_LOG_v1 {"time_micros": 1615667022158438, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:23:42.158456 7f8344e21a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:23:42.868324 7f8344e21a80 EVENT_LOG_v1 {"time_micros": 1615667022868321, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615667069810977 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667069810977
new file mode 100644
index 0000000..b63f2d4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667069810977
@@ -0,0 +1,186 @@
+2021/03/13-21:24:29.097045 7f9bb1a37a80 RocksDB version: 5.11.3
+2021/03/13-21:24:29.097112 7f9bb1a37a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:24:29.097114 7f9bb1a37a80 Compile date Mar 13 2021
+2021/03/13-21:24:29.097120 7f9bb1a37a80 DB SUMMARY
+2021/03/13-21:24:29.097155 7f9bb1a37a80 CURRENT file: CURRENT
+2021/03/13-21:24:29.097156 7f9bb1a37a80 IDENTITY file: IDENTITY
+2021/03/13-21:24:29.097160 7f9bb1a37a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:24:29.097161 7f9bb1a37a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:24:29.097162 7f9bb1a37a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:24:29.097164 7f9bb1a37a80 Options.error_if_exists: 0
+2021/03/13-21:24:29.097165 7f9bb1a37a80 Options.create_if_missing: 1
+2021/03/13-21:24:29.097166 7f9bb1a37a80 Options.paranoid_checks: 1
+2021/03/13-21:24:29.097166 7f9bb1a37a80 Options.env: 0x7f9bb23f1080
+2021/03/13-21:24:29.097167 7f9bb1a37a80 Options.info_log: 0x2d84c80
+2021/03/13-21:24:29.097168 7f9bb1a37a80 Options.max_file_opening_threads: 16
+2021/03/13-21:24:29.097168 7f9bb1a37a80 Options.statistics: (nil)
+2021/03/13-21:24:29.097169 7f9bb1a37a80 Options.use_fsync: 0
+2021/03/13-21:24:29.097170 7f9bb1a37a80 Options.max_log_file_size: 0
+2021/03/13-21:24:29.097170 7f9bb1a37a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:24:29.097171 7f9bb1a37a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:24:29.097172 7f9bb1a37a80 Options.keep_log_file_num: 1000
+2021/03/13-21:24:29.097172 7f9bb1a37a80 Options.recycle_log_file_num: 0
+2021/03/13-21:24:29.097173 7f9bb1a37a80 Options.allow_fallocate: 1
+2021/03/13-21:24:29.097174 7f9bb1a37a80 Options.allow_mmap_reads: 0
+2021/03/13-21:24:29.097174 7f9bb1a37a80 Options.allow_mmap_writes: 0
+2021/03/13-21:24:29.097175 7f9bb1a37a80 Options.use_direct_reads: 0
+2021/03/13-21:24:29.097176 7f9bb1a37a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:24:29.097176 7f9bb1a37a80 Options.create_missing_column_families: 0
+2021/03/13-21:24:29.097177 7f9bb1a37a80 Options.db_log_dir:
+2021/03/13-21:24:29.097177 7f9bb1a37a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:24:29.097178 7f9bb1a37a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:24:29.097179 7f9bb1a37a80 Options.max_subcompactions: 1
+2021/03/13-21:24:29.097179 7f9bb1a37a80 Options.max_background_flushes: -1
+2021/03/13-21:24:29.097180 7f9bb1a37a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:24:29.097181 7f9bb1a37a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:24:29.097181 7f9bb1a37a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:24:29.097182 7f9bb1a37a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:24:29.097183 7f9bb1a37a80 Options.advise_random_on_open: 1
+2021/03/13-21:24:29.097183 7f9bb1a37a80 Options.db_write_buffer_size: 0
+2021/03/13-21:24:29.097184 7f9bb1a37a80 Options.write_buffer_manager: 0x2d6cb90
+2021/03/13-21:24:29.097185 7f9bb1a37a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:24:29.097185 7f9bb1a37a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:24:29.097186 7f9bb1a37a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:24:29.097186 7f9bb1a37a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:24:29.097187 7f9bb1a37a80 Options.rate_limiter: (nil)
+2021/03/13-21:24:29.097189 7f9bb1a37a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:24:29.097197 7f9bb1a37a80 Options.wal_recovery_mode: 2
+2021/03/13-21:24:29.097197 7f9bb1a37a80 Options.enable_thread_tracking: 0
+2021/03/13-21:24:29.097198 7f9bb1a37a80 Options.enable_pipelined_write: 0
+2021/03/13-21:24:29.097199 7f9bb1a37a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:24:29.097199 7f9bb1a37a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:24:29.097200 7f9bb1a37a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:24:29.097200 7f9bb1a37a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:24:29.097201 7f9bb1a37a80 Options.row_cache: None
+2021/03/13-21:24:29.097202 7f9bb1a37a80 Options.wal_filter: None
+2021/03/13-21:24:29.097202 7f9bb1a37a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:24:29.097203 7f9bb1a37a80 Options.allow_ingest_behind: 0
+2021/03/13-21:24:29.097204 7f9bb1a37a80 Options.preserve_deletes: 0
+2021/03/13-21:24:29.097204 7f9bb1a37a80 Options.two_write_queues: 0
+2021/03/13-21:24:29.097205 7f9bb1a37a80 Options.manual_wal_flush: 0
+2021/03/13-21:24:29.097206 7f9bb1a37a80 Options.max_background_jobs: 16
+2021/03/13-21:24:29.097207 7f9bb1a37a80 Options.max_background_compactions: -1
+2021/03/13-21:24:29.097207 7f9bb1a37a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:24:29.097208 7f9bb1a37a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:24:29.097209 7f9bb1a37a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:24:29.097209 7f9bb1a37a80 Options.max_total_wal_size: 0
+2021/03/13-21:24:29.097210 7f9bb1a37a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:24:29.097211 7f9bb1a37a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:24:29.097211 7f9bb1a37a80 Options.max_open_files: -1
+2021/03/13-21:24:29.097212 7f9bb1a37a80 Options.bytes_per_sync: 0
+2021/03/13-21:24:29.097213 7f9bb1a37a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:24:29.097213 7f9bb1a37a80 Options.compaction_readahead_size: 0
+2021/03/13-21:24:29.097214 7f9bb1a37a80 Compression algorithms supported:
+2021/03/13-21:24:29.097214 7f9bb1a37a80 Snappy supported: 1
+2021/03/13-21:24:29.097215 7f9bb1a37a80 Zlib supported: 1
+2021/03/13-21:24:29.097216 7f9bb1a37a80 Bzip supported: 1
+2021/03/13-21:24:29.097216 7f9bb1a37a80 LZ4 supported: 1
+2021/03/13-21:24:29.097217 7f9bb1a37a80 ZSTDNotFinal supported: 1
+2021/03/13-21:24:29.097222 7f9bb1a37a80 ZSTD supported: 1
+2021/03/13-21:24:29.097225 7f9bb1a37a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:24:29.097226 7f9bb1a37a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:24:29.097338 7f9bb1a37a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:24:29.097396 7f9bb1a37a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:24:29.097398 7f9bb1a37a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:24:29.097399 7f9bb1a37a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:24:29.097399 7f9bb1a37a80 Options.compaction_filter: None
+2021/03/13-21:24:29.097400 7f9bb1a37a80 Options.compaction_filter_factory: None
+2021/03/13-21:24:29.097401 7f9bb1a37a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:24:29.097402 7f9bb1a37a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:24:29.097417 7f9bb1a37a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2d7c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2d61c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:24:29.097418 7f9bb1a37a80 Options.write_buffer_size: 134217728
+2021/03/13-21:24:29.097419 7f9bb1a37a80 Options.max_write_buffer_number: 6
+2021/03/13-21:24:29.097419 7f9bb1a37a80 Options.compression[0]: NoCompression
+2021/03/13-21:24:29.097420 7f9bb1a37a80 Options.compression[1]: NoCompression
+2021/03/13-21:24:29.097421 7f9bb1a37a80 Options.compression[2]: Snappy
+2021/03/13-21:24:29.097421 7f9bb1a37a80 Options.compression[3]: Snappy
+2021/03/13-21:24:29.097422 7f9bb1a37a80 Options.compression[4]: Snappy
+2021/03/13-21:24:29.097423 7f9bb1a37a80 Options.compression[5]: Snappy
+2021/03/13-21:24:29.097423 7f9bb1a37a80 Options.compression[6]: Snappy
+2021/03/13-21:24:29.097424 7f9bb1a37a80 Options.bottommost_compression: Disabled
+2021/03/13-21:24:29.097425 7f9bb1a37a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:24:29.097426 7f9bb1a37a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:24:29.097427 7f9bb1a37a80 Options.num_levels: 7
+2021/03/13-21:24:29.097427 7f9bb1a37a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:24:29.097428 7f9bb1a37a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:24:29.097429 7f9bb1a37a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:24:29.097429 7f9bb1a37a80 Options.compression_opts.level: -1
+2021/03/13-21:24:29.097430 7f9bb1a37a80 Options.compression_opts.strategy: 0
+2021/03/13-21:24:29.097431 7f9bb1a37a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:24:29.097431 7f9bb1a37a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:24:29.097432 7f9bb1a37a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:24:29.097433 7f9bb1a37a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:24:29.097433 7f9bb1a37a80 Options.target_file_size_base: 67108864
+2021/03/13-21:24:29.097434 7f9bb1a37a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:24:29.097435 7f9bb1a37a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:24:29.097435 7f9bb1a37a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:24:29.097436 7f9bb1a37a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:24:29.097437 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:24:29.097447 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:24:29.097448 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:24:29.097448 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:24:29.097449 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:24:29.097450 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:24:29.097450 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:24:29.097451 7f9bb1a37a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:24:29.097452 7f9bb1a37a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:24:29.097452 7f9bb1a37a80 Options.arena_block_size: 16777216
+2021/03/13-21:24:29.097453 7f9bb1a37a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:24:29.097454 7f9bb1a37a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:24:29.097454 7f9bb1a37a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:24:29.097455 7f9bb1a37a80 Options.disable_auto_compactions: 0
+2021/03/13-21:24:29.097457 7f9bb1a37a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:24:29.097457 7f9bb1a37a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:24:29.097458 7f9bb1a37a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:24:29.097459 7f9bb1a37a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:24:29.097459 7f9bb1a37a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:24:29.097460 7f9bb1a37a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:24:29.097461 7f9bb1a37a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:24:29.097462 7f9bb1a37a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:24:29.097462 7f9bb1a37a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:24:29.097463 7f9bb1a37a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:24:29.097463 7f9bb1a37a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:24:29.097464 7f9bb1a37a80 Options.table_properties_collectors:
+2021/03/13-21:24:29.097465 7f9bb1a37a80 Options.inplace_update_support: 0
+2021/03/13-21:24:29.097465 7f9bb1a37a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:24:29.097466 7f9bb1a37a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:24:29.097467 7f9bb1a37a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:24:29.097468 7f9bb1a37a80 Options.bloom_locality: 0
+2021/03/13-21:24:29.097468 7f9bb1a37a80 Options.max_successive_merges: 0
+2021/03/13-21:24:29.097469 7f9bb1a37a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:24:29.097470 7f9bb1a37a80 Options.paranoid_file_checks: 0
+2021/03/13-21:24:29.097470 7f9bb1a37a80 Options.force_consistency_checks: 0
+2021/03/13-21:24:29.097471 7f9bb1a37a80 Options.report_bg_io_stats: 0
+2021/03/13-21:24:29.097904 7f9bb1a37a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:24:29.097908 7f9bb1a37a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:24:29.098004 7f9bb1a37a80 EVENT_LOG_v1 {"time_micros": 1615667069097990, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:24:29.098012 7f9bb1a37a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:24:29.798853 7f9bb1a37a80 EVENT_LOG_v1 {"time_micros": 1615667069798849, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615667070527589 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667070527589
new file mode 100644
index 0000000..c6993be
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615667070527589
@@ -0,0 +1,186 @@
+2021/03/13-21:24:29.811276 7f9bb1a37a80 RocksDB version: 5.11.3
+2021/03/13-21:24:29.811333 7f9bb1a37a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:24:29.811335 7f9bb1a37a80 Compile date Mar 13 2021
+2021/03/13-21:24:29.811339 7f9bb1a37a80 DB SUMMARY
+2021/03/13-21:24:29.811372 7f9bb1a37a80 CURRENT file: CURRENT
+2021/03/13-21:24:29.811373 7f9bb1a37a80 IDENTITY file: IDENTITY
+2021/03/13-21:24:29.811377 7f9bb1a37a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:24:29.811378 7f9bb1a37a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:24:29.811379 7f9bb1a37a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:24:29.811381 7f9bb1a37a80 Options.error_if_exists: 0
+2021/03/13-21:24:29.811381 7f9bb1a37a80 Options.create_if_missing: 1
+2021/03/13-21:24:29.811382 7f9bb1a37a80 Options.paranoid_checks: 1
+2021/03/13-21:24:29.811383 7f9bb1a37a80 Options.env: 0x7f9bb23f1080
+2021/03/13-21:24:29.811383 7f9bb1a37a80 Options.info_log: 0x2d84c80
+2021/03/13-21:24:29.811384 7f9bb1a37a80 Options.max_file_opening_threads: 16
+2021/03/13-21:24:29.811384 7f9bb1a37a80 Options.statistics: (nil)
+2021/03/13-21:24:29.811385 7f9bb1a37a80 Options.use_fsync: 0
+2021/03/13-21:24:29.811386 7f9bb1a37a80 Options.max_log_file_size: 0
+2021/03/13-21:24:29.811386 7f9bb1a37a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:24:29.811387 7f9bb1a37a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:24:29.811387 7f9bb1a37a80 Options.keep_log_file_num: 1000
+2021/03/13-21:24:29.811388 7f9bb1a37a80 Options.recycle_log_file_num: 0
+2021/03/13-21:24:29.811389 7f9bb1a37a80 Options.allow_fallocate: 1
+2021/03/13-21:24:29.811389 7f9bb1a37a80 Options.allow_mmap_reads: 0
+2021/03/13-21:24:29.811390 7f9bb1a37a80 Options.allow_mmap_writes: 0
+2021/03/13-21:24:29.811390 7f9bb1a37a80 Options.use_direct_reads: 0
+2021/03/13-21:24:29.811391 7f9bb1a37a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:24:29.811391 7f9bb1a37a80 Options.create_missing_column_families: 0
+2021/03/13-21:24:29.811392 7f9bb1a37a80 Options.db_log_dir:
+2021/03/13-21:24:29.811392 7f9bb1a37a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:24:29.811393 7f9bb1a37a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:24:29.811394 7f9bb1a37a80 Options.max_subcompactions: 1
+2021/03/13-21:24:29.811394 7f9bb1a37a80 Options.max_background_flushes: -1
+2021/03/13-21:24:29.811395 7f9bb1a37a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:24:29.811395 7f9bb1a37a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:24:29.811396 7f9bb1a37a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:24:29.811397 7f9bb1a37a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:24:29.811397 7f9bb1a37a80 Options.advise_random_on_open: 1
+2021/03/13-21:24:29.811398 7f9bb1a37a80 Options.db_write_buffer_size: 0
+2021/03/13-21:24:29.811398 7f9bb1a37a80 Options.write_buffer_manager: 0x2d6cb90
+2021/03/13-21:24:29.811399 7f9bb1a37a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:24:29.811399 7f9bb1a37a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:24:29.811400 7f9bb1a37a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:24:29.811400 7f9bb1a37a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:24:29.811401 7f9bb1a37a80 Options.rate_limiter: (nil)
+2021/03/13-21:24:29.811402 7f9bb1a37a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:24:29.811411 7f9bb1a37a80 Options.wal_recovery_mode: 2
+2021/03/13-21:24:29.811412 7f9bb1a37a80 Options.enable_thread_tracking: 0
+2021/03/13-21:24:29.811413 7f9bb1a37a80 Options.enable_pipelined_write: 0
+2021/03/13-21:24:29.811413 7f9bb1a37a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:24:29.811414 7f9bb1a37a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:24:29.811414 7f9bb1a37a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:24:29.811415 7f9bb1a37a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:24:29.811415 7f9bb1a37a80 Options.row_cache: None
+2021/03/13-21:24:29.811416 7f9bb1a37a80 Options.wal_filter: None
+2021/03/13-21:24:29.811416 7f9bb1a37a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:24:29.811417 7f9bb1a37a80 Options.allow_ingest_behind: 0
+2021/03/13-21:24:29.811418 7f9bb1a37a80 Options.preserve_deletes: 0
+2021/03/13-21:24:29.811418 7f9bb1a37a80 Options.two_write_queues: 0
+2021/03/13-21:24:29.811419 7f9bb1a37a80 Options.manual_wal_flush: 0
+2021/03/13-21:24:29.811420 7f9bb1a37a80 Options.max_background_jobs: 16
+2021/03/13-21:24:29.811420 7f9bb1a37a80 Options.max_background_compactions: -1
+2021/03/13-21:24:29.811421 7f9bb1a37a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:24:29.811421 7f9bb1a37a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:24:29.811422 7f9bb1a37a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:24:29.811423 7f9bb1a37a80 Options.max_total_wal_size: 0
+2021/03/13-21:24:29.811423 7f9bb1a37a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:24:29.811424 7f9bb1a37a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:24:29.811424 7f9bb1a37a80 Options.max_open_files: -1
+2021/03/13-21:24:29.811425 7f9bb1a37a80 Options.bytes_per_sync: 0
+2021/03/13-21:24:29.811425 7f9bb1a37a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:24:29.811426 7f9bb1a37a80 Options.compaction_readahead_size: 0
+2021/03/13-21:24:29.811427 7f9bb1a37a80 Compression algorithms supported:
+2021/03/13-21:24:29.811427 7f9bb1a37a80 Snappy supported: 1
+2021/03/13-21:24:29.811428 7f9bb1a37a80 Zlib supported: 1
+2021/03/13-21:24:29.811428 7f9bb1a37a80 Bzip supported: 1
+2021/03/13-21:24:29.811429 7f9bb1a37a80 LZ4 supported: 1
+2021/03/13-21:24:29.811429 7f9bb1a37a80 ZSTDNotFinal supported: 1
+2021/03/13-21:24:29.811433 7f9bb1a37a80 ZSTD supported: 1
+2021/03/13-21:24:29.811436 7f9bb1a37a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:24:29.811438 7f9bb1a37a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:24:29.811530 7f9bb1a37a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:24:29.811581 7f9bb1a37a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:24:29.811583 7f9bb1a37a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:24:29.811584 7f9bb1a37a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:24:29.811584 7f9bb1a37a80 Options.compaction_filter: None
+2021/03/13-21:24:29.811585 7f9bb1a37a80 Options.compaction_filter_factory: None
+2021/03/13-21:24:29.811585 7f9bb1a37a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:24:29.811586 7f9bb1a37a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:24:29.811600 7f9bb1a37a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2d7c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2d61c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:24:29.811601 7f9bb1a37a80 Options.write_buffer_size: 134217728
+2021/03/13-21:24:29.811601 7f9bb1a37a80 Options.max_write_buffer_number: 6
+2021/03/13-21:24:29.811602 7f9bb1a37a80 Options.compression[0]: NoCompression
+2021/03/13-21:24:29.811603 7f9bb1a37a80 Options.compression[1]: NoCompression
+2021/03/13-21:24:29.811604 7f9bb1a37a80 Options.compression[2]: Snappy
+2021/03/13-21:24:29.811604 7f9bb1a37a80 Options.compression[3]: Snappy
+2021/03/13-21:24:29.811605 7f9bb1a37a80 Options.compression[4]: Snappy
+2021/03/13-21:24:29.811605 7f9bb1a37a80 Options.compression[5]: Snappy
+2021/03/13-21:24:29.811606 7f9bb1a37a80 Options.compression[6]: Snappy
+2021/03/13-21:24:29.811606 7f9bb1a37a80 Options.bottommost_compression: Disabled
+2021/03/13-21:24:29.811607 7f9bb1a37a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:24:29.811608 7f9bb1a37a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:24:29.811608 7f9bb1a37a80 Options.num_levels: 7
+2021/03/13-21:24:29.811609 7f9bb1a37a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:24:29.811609 7f9bb1a37a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:24:29.811610 7f9bb1a37a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:24:29.811611 7f9bb1a37a80 Options.compression_opts.level: -1
+2021/03/13-21:24:29.811611 7f9bb1a37a80 Options.compression_opts.strategy: 0
+2021/03/13-21:24:29.811612 7f9bb1a37a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:24:29.811613 7f9bb1a37a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:24:29.811613 7f9bb1a37a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:24:29.811614 7f9bb1a37a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:24:29.811614 7f9bb1a37a80 Options.target_file_size_base: 67108864
+2021/03/13-21:24:29.811615 7f9bb1a37a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:24:29.811616 7f9bb1a37a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:24:29.811616 7f9bb1a37a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:24:29.811617 7f9bb1a37a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:24:29.811618 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:24:29.811626 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:24:29.811626 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:24:29.811627 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:24:29.811627 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:24:29.811628 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:24:29.811629 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:24:29.811629 7f9bb1a37a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:24:29.811630 7f9bb1a37a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:24:29.811630 7f9bb1a37a80 Options.arena_block_size: 16777216
+2021/03/13-21:24:29.811631 7f9bb1a37a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:24:29.811631 7f9bb1a37a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:24:29.811632 7f9bb1a37a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:24:29.811633 7f9bb1a37a80 Options.disable_auto_compactions: 0
+2021/03/13-21:24:29.811634 7f9bb1a37a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:24:29.811635 7f9bb1a37a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:24:29.811636 7f9bb1a37a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:24:29.811636 7f9bb1a37a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:24:29.811637 7f9bb1a37a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:24:29.811637 7f9bb1a37a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:24:29.811638 7f9bb1a37a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:24:29.811639 7f9bb1a37a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:24:29.811639 7f9bb1a37a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:24:29.811640 7f9bb1a37a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:24:29.811641 7f9bb1a37a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:24:29.811641 7f9bb1a37a80 Options.table_properties_collectors:
+2021/03/13-21:24:29.811642 7f9bb1a37a80 Options.inplace_update_support: 0
+2021/03/13-21:24:29.811642 7f9bb1a37a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:24:29.811643 7f9bb1a37a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:24:29.811644 7f9bb1a37a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:24:29.811644 7f9bb1a37a80 Options.bloom_locality: 0
+2021/03/13-21:24:29.811645 7f9bb1a37a80 Options.max_successive_merges: 0
+2021/03/13-21:24:29.811645 7f9bb1a37a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:24:29.811646 7f9bb1a37a80 Options.paranoid_file_checks: 0
+2021/03/13-21:24:29.811647 7f9bb1a37a80 Options.force_consistency_checks: 0
+2021/03/13-21:24:29.811647 7f9bb1a37a80 Options.report_bg_io_stats: 0
+2021/03/13-21:24:29.812010 7f9bb1a37a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:24:29.812013 7f9bb1a37a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:24:29.812072 7f9bb1a37a80 EVENT_LOG_v1 {"time_micros": 1615667069812062, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:24:29.812077 7f9bb1a37a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:24:30.514579 7f9bb1a37a80 EVENT_LOG_v1 {"time_micros": 1615667070514576, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672236657084 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672236657084
new file mode 100644
index 0000000..fdd720e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672236657084
@@ -0,0 +1,186 @@
+2021/03/13-21:24:30.527883 7f9bb1a37a80 RocksDB version: 5.11.3
+2021/03/13-21:24:30.527940 7f9bb1a37a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-21:24:30.527941 7f9bb1a37a80 Compile date Mar 13 2021
+2021/03/13-21:24:30.527946 7f9bb1a37a80 DB SUMMARY
+2021/03/13-21:24:30.527982 7f9bb1a37a80 CURRENT file: CURRENT
+2021/03/13-21:24:30.527982 7f9bb1a37a80 IDENTITY file: IDENTITY
+2021/03/13-21:24:30.527986 7f9bb1a37a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-21:24:30.527987 7f9bb1a37a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-21:24:30.527988 7f9bb1a37a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-21:24:30.527990 7f9bb1a37a80 Options.error_if_exists: 0
+2021/03/13-21:24:30.527991 7f9bb1a37a80 Options.create_if_missing: 1
+2021/03/13-21:24:30.527992 7f9bb1a37a80 Options.paranoid_checks: 1
+2021/03/13-21:24:30.527992 7f9bb1a37a80 Options.env: 0x7f9bb23f1080
+2021/03/13-21:24:30.527993 7f9bb1a37a80 Options.info_log: 0x2d84c80
+2021/03/13-21:24:30.527993 7f9bb1a37a80 Options.max_file_opening_threads: 16
+2021/03/13-21:24:30.527994 7f9bb1a37a80 Options.statistics: (nil)
+2021/03/13-21:24:30.527995 7f9bb1a37a80 Options.use_fsync: 0
+2021/03/13-21:24:30.527995 7f9bb1a37a80 Options.max_log_file_size: 0
+2021/03/13-21:24:30.527996 7f9bb1a37a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-21:24:30.527997 7f9bb1a37a80 Options.log_file_time_to_roll: 0
+2021/03/13-21:24:30.527997 7f9bb1a37a80 Options.keep_log_file_num: 1000
+2021/03/13-21:24:30.527998 7f9bb1a37a80 Options.recycle_log_file_num: 0
+2021/03/13-21:24:30.527998 7f9bb1a37a80 Options.allow_fallocate: 1
+2021/03/13-21:24:30.527999 7f9bb1a37a80 Options.allow_mmap_reads: 0
+2021/03/13-21:24:30.527999 7f9bb1a37a80 Options.allow_mmap_writes: 0
+2021/03/13-21:24:30.528000 7f9bb1a37a80 Options.use_direct_reads: 0
+2021/03/13-21:24:30.528000 7f9bb1a37a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-21:24:30.528001 7f9bb1a37a80 Options.create_missing_column_families: 0
+2021/03/13-21:24:30.528002 7f9bb1a37a80 Options.db_log_dir:
+2021/03/13-21:24:30.528002 7f9bb1a37a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-21:24:30.528003 7f9bb1a37a80 Options.table_cache_numshardbits: 6
+2021/03/13-21:24:30.528003 7f9bb1a37a80 Options.max_subcompactions: 1
+2021/03/13-21:24:30.528004 7f9bb1a37a80 Options.max_background_flushes: -1
+2021/03/13-21:24:30.528004 7f9bb1a37a80 Options.WAL_ttl_seconds: 0
+2021/03/13-21:24:30.528005 7f9bb1a37a80 Options.WAL_size_limit_MB: 0
+2021/03/13-21:24:30.528006 7f9bb1a37a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-21:24:30.528006 7f9bb1a37a80 Options.is_fd_close_on_exec: 1
+2021/03/13-21:24:30.528007 7f9bb1a37a80 Options.advise_random_on_open: 1
+2021/03/13-21:24:30.528007 7f9bb1a37a80 Options.db_write_buffer_size: 0
+2021/03/13-21:24:30.528008 7f9bb1a37a80 Options.write_buffer_manager: 0x2d6cb90
+2021/03/13-21:24:30.528008 7f9bb1a37a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-21:24:30.528009 7f9bb1a37a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-21:24:30.528010 7f9bb1a37a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-21:24:30.528010 7f9bb1a37a80 Options.use_adaptive_mutex: 0
+2021/03/13-21:24:30.528011 7f9bb1a37a80 Options.rate_limiter: (nil)
+2021/03/13-21:24:30.528012 7f9bb1a37a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-21:24:30.528019 7f9bb1a37a80 Options.wal_recovery_mode: 2
+2021/03/13-21:24:30.528020 7f9bb1a37a80 Options.enable_thread_tracking: 0
+2021/03/13-21:24:30.528020 7f9bb1a37a80 Options.enable_pipelined_write: 0
+2021/03/13-21:24:30.528021 7f9bb1a37a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-21:24:30.528021 7f9bb1a37a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-21:24:30.528022 7f9bb1a37a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-21:24:30.528023 7f9bb1a37a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-21:24:30.528023 7f9bb1a37a80 Options.row_cache: None
+2021/03/13-21:24:30.528024 7f9bb1a37a80 Options.wal_filter: None
+2021/03/13-21:24:30.528024 7f9bb1a37a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-21:24:30.528025 7f9bb1a37a80 Options.allow_ingest_behind: 0
+2021/03/13-21:24:30.528025 7f9bb1a37a80 Options.preserve_deletes: 0
+2021/03/13-21:24:30.528026 7f9bb1a37a80 Options.two_write_queues: 0
+2021/03/13-21:24:30.528026 7f9bb1a37a80 Options.manual_wal_flush: 0
+2021/03/13-21:24:30.528028 7f9bb1a37a80 Options.max_background_jobs: 16
+2021/03/13-21:24:30.528028 7f9bb1a37a80 Options.max_background_compactions: -1
+2021/03/13-21:24:30.528029 7f9bb1a37a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-21:24:30.528029 7f9bb1a37a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-21:24:30.528030 7f9bb1a37a80 Options.delayed_write_rate : 16777216
+2021/03/13-21:24:30.528030 7f9bb1a37a80 Options.max_total_wal_size: 0
+2021/03/13-21:24:30.528031 7f9bb1a37a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-21:24:30.528032 7f9bb1a37a80 Options.stats_dump_period_sec: 600
+2021/03/13-21:24:30.528032 7f9bb1a37a80 Options.max_open_files: -1
+2021/03/13-21:24:30.528033 7f9bb1a37a80 Options.bytes_per_sync: 0
+2021/03/13-21:24:30.528033 7f9bb1a37a80 Options.wal_bytes_per_sync: 0
+2021/03/13-21:24:30.528034 7f9bb1a37a80 Options.compaction_readahead_size: 0
+2021/03/13-21:24:30.528034 7f9bb1a37a80 Compression algorithms supported:
+2021/03/13-21:24:30.528035 7f9bb1a37a80 Snappy supported: 1
+2021/03/13-21:24:30.528036 7f9bb1a37a80 Zlib supported: 1
+2021/03/13-21:24:30.528036 7f9bb1a37a80 Bzip supported: 1
+2021/03/13-21:24:30.528037 7f9bb1a37a80 LZ4 supported: 1
+2021/03/13-21:24:30.528037 7f9bb1a37a80 ZSTDNotFinal supported: 1
+2021/03/13-21:24:30.528041 7f9bb1a37a80 ZSTD supported: 1
+2021/03/13-21:24:30.528044 7f9bb1a37a80 Fast CRC32 supported: Supported on x86
+2021/03/13-21:24:30.528046 7f9bb1a37a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-21:24:30.528135 7f9bb1a37a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-21:24:30.528186 7f9bb1a37a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-21:24:30.528188 7f9bb1a37a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-21:24:30.528188 7f9bb1a37a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-21:24:30.528189 7f9bb1a37a80 Options.compaction_filter: None
+2021/03/13-21:24:30.528190 7f9bb1a37a80 Options.compaction_filter_factory: None
+2021/03/13-21:24:30.528190 7f9bb1a37a80 Options.memtable_factory: SkipListFactory
+2021/03/13-21:24:30.528191 7f9bb1a37a80 Options.table_factory: BlockBasedTable
+2021/03/13-21:24:30.528204 7f9bb1a37a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2d7c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2d61c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-21:24:30.528205 7f9bb1a37a80 Options.write_buffer_size: 134217728
+2021/03/13-21:24:30.528205 7f9bb1a37a80 Options.max_write_buffer_number: 6
+2021/03/13-21:24:30.528206 7f9bb1a37a80 Options.compression[0]: NoCompression
+2021/03/13-21:24:30.528207 7f9bb1a37a80 Options.compression[1]: NoCompression
+2021/03/13-21:24:30.528207 7f9bb1a37a80 Options.compression[2]: Snappy
+2021/03/13-21:24:30.528208 7f9bb1a37a80 Options.compression[3]: Snappy
+2021/03/13-21:24:30.528209 7f9bb1a37a80 Options.compression[4]: Snappy
+2021/03/13-21:24:30.528209 7f9bb1a37a80 Options.compression[5]: Snappy
+2021/03/13-21:24:30.528210 7f9bb1a37a80 Options.compression[6]: Snappy
+2021/03/13-21:24:30.528210 7f9bb1a37a80 Options.bottommost_compression: Disabled
+2021/03/13-21:24:30.528211 7f9bb1a37a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-21:24:30.528212 7f9bb1a37a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-21:24:30.528212 7f9bb1a37a80 Options.num_levels: 7
+2021/03/13-21:24:30.528213 7f9bb1a37a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-21:24:30.528213 7f9bb1a37a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-21:24:30.528214 7f9bb1a37a80 Options.compression_opts.window_bits: -14
+2021/03/13-21:24:30.528214 7f9bb1a37a80 Options.compression_opts.level: -1
+2021/03/13-21:24:30.528215 7f9bb1a37a80 Options.compression_opts.strategy: 0
+2021/03/13-21:24:30.528216 7f9bb1a37a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-21:24:30.528216 7f9bb1a37a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-21:24:30.528217 7f9bb1a37a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-21:24:30.528217 7f9bb1a37a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-21:24:30.528218 7f9bb1a37a80 Options.target_file_size_base: 67108864
+2021/03/13-21:24:30.528219 7f9bb1a37a80 Options.target_file_size_multiplier: 1
+2021/03/13-21:24:30.528219 7f9bb1a37a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-21:24:30.528220 7f9bb1a37a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-21:24:30.528220 7f9bb1a37a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-21:24:30.528222 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-21:24:30.528229 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-21:24:30.528230 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-21:24:30.528231 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-21:24:30.528231 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-21:24:30.528232 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-21:24:30.528232 7f9bb1a37a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-21:24:30.528233 7f9bb1a37a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-21:24:30.528234 7f9bb1a37a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-21:24:30.528234 7f9bb1a37a80 Options.arena_block_size: 16777216
+2021/03/13-21:24:30.528235 7f9bb1a37a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-21:24:30.528235 7f9bb1a37a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-21:24:30.528236 7f9bb1a37a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-21:24:30.528236 7f9bb1a37a80 Options.disable_auto_compactions: 0
+2021/03/13-21:24:30.528251 7f9bb1a37a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-21:24:30.528252 7f9bb1a37a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-21:24:30.528253 7f9bb1a37a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-21:24:30.528253 7f9bb1a37a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-21:24:30.528254 7f9bb1a37a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-21:24:30.528254 7f9bb1a37a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-21:24:30.528255 7f9bb1a37a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-21:24:30.528256 7f9bb1a37a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-21:24:30.528257 7f9bb1a37a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-21:24:30.528257 7f9bb1a37a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-21:24:30.528258 7f9bb1a37a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-21:24:30.528258 7f9bb1a37a80 Options.table_properties_collectors:
+2021/03/13-21:24:30.528259 7f9bb1a37a80 Options.inplace_update_support: 0
+2021/03/13-21:24:30.528259 7f9bb1a37a80 Options.inplace_update_num_locks: 10000
+2021/03/13-21:24:30.528260 7f9bb1a37a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-21:24:30.528261 7f9bb1a37a80 Options.memtable_huge_page_size: 0
+2021/03/13-21:24:30.528261 7f9bb1a37a80 Options.bloom_locality: 0
+2021/03/13-21:24:30.528262 7f9bb1a37a80 Options.max_successive_merges: 0
+2021/03/13-21:24:30.528263 7f9bb1a37a80 Options.optimize_filters_for_hits: 0
+2021/03/13-21:24:30.528263 7f9bb1a37a80 Options.paranoid_file_checks: 0
+2021/03/13-21:24:30.528264 7f9bb1a37a80 Options.force_consistency_checks: 0
+2021/03/13-21:24:30.528264 7f9bb1a37a80 Options.report_bg_io_stats: 0
+2021/03/13-21:24:30.528637 7f9bb1a37a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-21:24:30.528639 7f9bb1a37a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-21:24:30.528703 7f9bb1a37a80 EVENT_LOG_v1 {"time_micros": 1615667070528693, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-21:24:30.528708 7f9bb1a37a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-21:24:31.217090 7f9bb1a37a80 EVENT_LOG_v1 {"time_micros": 1615667071217086, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672237394372 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672237394372
new file mode 100644
index 0000000..c03d861
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672237394372
@@ -0,0 +1,186 @@
+2021/03/13-22:50:36.657417 7f5ec9ce0a80 RocksDB version: 5.11.3
+2021/03/13-22:50:36.657486 7f5ec9ce0a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:50:36.657488 7f5ec9ce0a80 Compile date Mar 13 2021
+2021/03/13-22:50:36.657491 7f5ec9ce0a80 DB SUMMARY
+2021/03/13-22:50:36.657533 7f5ec9ce0a80 CURRENT file: CURRENT
+2021/03/13-22:50:36.657535 7f5ec9ce0a80 IDENTITY file: IDENTITY
+2021/03/13-22:50:36.657539 7f5ec9ce0a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:50:36.657540 7f5ec9ce0a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:50:36.657541 7f5ec9ce0a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:50:36.657543 7f5ec9ce0a80 Options.error_if_exists: 0
+2021/03/13-22:50:36.657544 7f5ec9ce0a80 Options.create_if_missing: 1
+2021/03/13-22:50:36.657545 7f5ec9ce0a80 Options.paranoid_checks: 1
+2021/03/13-22:50:36.657545 7f5ec9ce0a80 Options.env: 0x7f5eca69a080
+2021/03/13-22:50:36.657546 7f5ec9ce0a80 Options.info_log: 0x194eca0
+2021/03/13-22:50:36.657547 7f5ec9ce0a80 Options.max_file_opening_threads: 16
+2021/03/13-22:50:36.657547 7f5ec9ce0a80 Options.statistics: (nil)
+2021/03/13-22:50:36.657548 7f5ec9ce0a80 Options.use_fsync: 0
+2021/03/13-22:50:36.657549 7f5ec9ce0a80 Options.max_log_file_size: 0
+2021/03/13-22:50:36.657549 7f5ec9ce0a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:50:36.657550 7f5ec9ce0a80 Options.log_file_time_to_roll: 0
+2021/03/13-22:50:36.657551 7f5ec9ce0a80 Options.keep_log_file_num: 1000
+2021/03/13-22:50:36.657551 7f5ec9ce0a80 Options.recycle_log_file_num: 0
+2021/03/13-22:50:36.657552 7f5ec9ce0a80 Options.allow_fallocate: 1
+2021/03/13-22:50:36.657553 7f5ec9ce0a80 Options.allow_mmap_reads: 0
+2021/03/13-22:50:36.657553 7f5ec9ce0a80 Options.allow_mmap_writes: 0
+2021/03/13-22:50:36.657554 7f5ec9ce0a80 Options.use_direct_reads: 0
+2021/03/13-22:50:36.657555 7f5ec9ce0a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:50:36.657555 7f5ec9ce0a80 Options.create_missing_column_families: 0
+2021/03/13-22:50:36.657556 7f5ec9ce0a80 Options.db_log_dir:
+2021/03/13-22:50:36.657556 7f5ec9ce0a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:50:36.657557 7f5ec9ce0a80 Options.table_cache_numshardbits: 6
+2021/03/13-22:50:36.657558 7f5ec9ce0a80 Options.max_subcompactions: 1
+2021/03/13-22:50:36.657558 7f5ec9ce0a80 Options.max_background_flushes: -1
+2021/03/13-22:50:36.657559 7f5ec9ce0a80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:50:36.657560 7f5ec9ce0a80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:50:36.657560 7f5ec9ce0a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:50:36.657561 7f5ec9ce0a80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:50:36.657562 7f5ec9ce0a80 Options.advise_random_on_open: 1
+2021/03/13-22:50:36.657562 7f5ec9ce0a80 Options.db_write_buffer_size: 0
+2021/03/13-22:50:36.657563 7f5ec9ce0a80 Options.write_buffer_manager: 0x1936b90
+2021/03/13-22:50:36.657563 7f5ec9ce0a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:50:36.657564 7f5ec9ce0a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:50:36.657565 7f5ec9ce0a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:50:36.657565 7f5ec9ce0a80 Options.use_adaptive_mutex: 0
+2021/03/13-22:50:36.657566 7f5ec9ce0a80 Options.rate_limiter: (nil)
+2021/03/13-22:50:36.657567 7f5ec9ce0a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:50:36.657575 7f5ec9ce0a80 Options.wal_recovery_mode: 2
+2021/03/13-22:50:36.657576 7f5ec9ce0a80 Options.enable_thread_tracking: 0
+2021/03/13-22:50:36.657577 7f5ec9ce0a80 Options.enable_pipelined_write: 0
+2021/03/13-22:50:36.657578 7f5ec9ce0a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:50:36.657578 7f5ec9ce0a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:50:36.657579 7f5ec9ce0a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:50:36.657579 7f5ec9ce0a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:50:36.657580 7f5ec9ce0a80 Options.row_cache: None
+2021/03/13-22:50:36.657581 7f5ec9ce0a80 Options.wal_filter: None
+2021/03/13-22:50:36.657581 7f5ec9ce0a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:50:36.657582 7f5ec9ce0a80 Options.allow_ingest_behind: 0
+2021/03/13-22:50:36.657583 7f5ec9ce0a80 Options.preserve_deletes: 0
+2021/03/13-22:50:36.657583 7f5ec9ce0a80 Options.two_write_queues: 0
+2021/03/13-22:50:36.657584 7f5ec9ce0a80 Options.manual_wal_flush: 0
+2021/03/13-22:50:36.657585 7f5ec9ce0a80 Options.max_background_jobs: 16
+2021/03/13-22:50:36.657586 7f5ec9ce0a80 Options.max_background_compactions: -1
+2021/03/13-22:50:36.657586 7f5ec9ce0a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:50:36.657587 7f5ec9ce0a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:50:36.657588 7f5ec9ce0a80 Options.delayed_write_rate : 16777216
+2021/03/13-22:50:36.657588 7f5ec9ce0a80 Options.max_total_wal_size: 0
+2021/03/13-22:50:36.657589 7f5ec9ce0a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:50:36.657590 7f5ec9ce0a80 Options.stats_dump_period_sec: 600
+2021/03/13-22:50:36.657590 7f5ec9ce0a80 Options.max_open_files: -1
+2021/03/13-22:50:36.657591 7f5ec9ce0a80 Options.bytes_per_sync: 0
+2021/03/13-22:50:36.657592 7f5ec9ce0a80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:50:36.657592 7f5ec9ce0a80 Options.compaction_readahead_size: 0
+2021/03/13-22:50:36.657593 7f5ec9ce0a80 Compression algorithms supported:
+2021/03/13-22:50:36.657593 7f5ec9ce0a80 Snappy supported: 1
+2021/03/13-22:50:36.657594 7f5ec9ce0a80 Zlib supported: 1
+2021/03/13-22:50:36.657595 7f5ec9ce0a80 Bzip supported: 1
+2021/03/13-22:50:36.657595 7f5ec9ce0a80 LZ4 supported: 1
+2021/03/13-22:50:36.657596 7f5ec9ce0a80 ZSTDNotFinal supported: 1
+2021/03/13-22:50:36.657601 7f5ec9ce0a80 ZSTD supported: 1
+2021/03/13-22:50:36.657604 7f5ec9ce0a80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:50:36.657605 7f5ec9ce0a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:50:36.657730 7f5ec9ce0a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:50:36.657791 7f5ec9ce0a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:50:36.657793 7f5ec9ce0a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:50:36.657794 7f5ec9ce0a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:50:36.657795 7f5ec9ce0a80 Options.compaction_filter: None
+2021/03/13-22:50:36.657795 7f5ec9ce0a80 Options.compaction_filter_factory: None
+2021/03/13-22:50:36.657796 7f5ec9ce0a80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:50:36.657797 7f5ec9ce0a80 Options.table_factory: BlockBasedTable
+2021/03/13-22:50:36.657811 7f5ec9ce0a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1946520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x192bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:50:36.657812 7f5ec9ce0a80 Options.write_buffer_size: 134217728
+2021/03/13-22:50:36.657813 7f5ec9ce0a80 Options.max_write_buffer_number: 6
+2021/03/13-22:50:36.657814 7f5ec9ce0a80 Options.compression[0]: NoCompression
+2021/03/13-22:50:36.657815 7f5ec9ce0a80 Options.compression[1]: NoCompression
+2021/03/13-22:50:36.657815 7f5ec9ce0a80 Options.compression[2]: Snappy
+2021/03/13-22:50:36.657816 7f5ec9ce0a80 Options.compression[3]: Snappy
+2021/03/13-22:50:36.657817 7f5ec9ce0a80 Options.compression[4]: Snappy
+2021/03/13-22:50:36.657817 7f5ec9ce0a80 Options.compression[5]: Snappy
+2021/03/13-22:50:36.657818 7f5ec9ce0a80 Options.compression[6]: Snappy
+2021/03/13-22:50:36.657819 7f5ec9ce0a80 Options.bottommost_compression: Disabled
+2021/03/13-22:50:36.657819 7f5ec9ce0a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:50:36.657820 7f5ec9ce0a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:50:36.657821 7f5ec9ce0a80 Options.num_levels: 7
+2021/03/13-22:50:36.657821 7f5ec9ce0a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:50:36.657822 7f5ec9ce0a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:50:36.657823 7f5ec9ce0a80 Options.compression_opts.window_bits: -14
+2021/03/13-22:50:36.657823 7f5ec9ce0a80 Options.compression_opts.level: -1
+2021/03/13-22:50:36.657824 7f5ec9ce0a80 Options.compression_opts.strategy: 0
+2021/03/13-22:50:36.657824 7f5ec9ce0a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:50:36.657825 7f5ec9ce0a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:50:36.657826 7f5ec9ce0a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:50:36.657826 7f5ec9ce0a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:50:36.657827 7f5ec9ce0a80 Options.target_file_size_base: 67108864
+2021/03/13-22:50:36.657828 7f5ec9ce0a80 Options.target_file_size_multiplier: 1
+2021/03/13-22:50:36.657828 7f5ec9ce0a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:50:36.657829 7f5ec9ce0a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:50:36.657830 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:50:36.657831 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:50:36.657840 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:50:36.657841 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:50:36.657841 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:50:36.657842 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:50:36.657843 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:50:36.657843 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:50:36.657844 7f5ec9ce0a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:50:36.657845 7f5ec9ce0a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:50:36.657845 7f5ec9ce0a80 Options.arena_block_size: 16777216
+2021/03/13-22:50:36.657846 7f5ec9ce0a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:50:36.657847 7f5ec9ce0a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:50:36.657847 7f5ec9ce0a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:50:36.657848 7f5ec9ce0a80 Options.disable_auto_compactions: 0
+2021/03/13-22:50:36.657849 7f5ec9ce0a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:50:36.657850 7f5ec9ce0a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:50:36.657851 7f5ec9ce0a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:50:36.657851 7f5ec9ce0a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:50:36.657852 7f5ec9ce0a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:50:36.657853 7f5ec9ce0a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:50:36.657853 7f5ec9ce0a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:50:36.657854 7f5ec9ce0a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:50:36.657855 7f5ec9ce0a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:50:36.657856 7f5ec9ce0a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:50:36.657856 7f5ec9ce0a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:50:36.657857 7f5ec9ce0a80 Options.table_properties_collectors:
+2021/03/13-22:50:36.657857 7f5ec9ce0a80 Options.inplace_update_support: 0
+2021/03/13-22:50:36.657858 7f5ec9ce0a80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:50:36.657859 7f5ec9ce0a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:50:36.657860 7f5ec9ce0a80 Options.memtable_huge_page_size: 0
+2021/03/13-22:50:36.657860 7f5ec9ce0a80 Options.bloom_locality: 0
+2021/03/13-22:50:36.657861 7f5ec9ce0a80 Options.max_successive_merges: 0
+2021/03/13-22:50:36.657861 7f5ec9ce0a80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:50:36.657862 7f5ec9ce0a80 Options.paranoid_file_checks: 0
+2021/03/13-22:50:36.657863 7f5ec9ce0a80 Options.force_consistency_checks: 0
+2021/03/13-22:50:36.657863 7f5ec9ce0a80 Options.report_bg_io_stats: 0
+2021/03/13-22:50:36.658295 7f5ec9ce0a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:50:36.658298 7f5ec9ce0a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:50:36.658366 7f5ec9ce0a80 EVENT_LOG_v1 {"time_micros": 1615672236658352, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:50:36.658372 7f5ec9ce0a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:50:37.381971 7f5ec9ce0a80 EVENT_LOG_v1 {"time_micros": 1615672237381968, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672238120739 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672238120739
new file mode 100644
index 0000000..e2a361a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672238120739
@@ -0,0 +1,186 @@
+2021/03/13-22:50:37.394655 7f5ec9ce0a80 RocksDB version: 5.11.3
+2021/03/13-22:50:37.394713 7f5ec9ce0a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:50:37.394715 7f5ec9ce0a80 Compile date Mar 13 2021
+2021/03/13-22:50:37.394717 7f5ec9ce0a80 DB SUMMARY
+2021/03/13-22:50:37.394756 7f5ec9ce0a80 CURRENT file: CURRENT
+2021/03/13-22:50:37.394757 7f5ec9ce0a80 IDENTITY file: IDENTITY
+2021/03/13-22:50:37.394760 7f5ec9ce0a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:50:37.394761 7f5ec9ce0a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:50:37.394762 7f5ec9ce0a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:50:37.394765 7f5ec9ce0a80 Options.error_if_exists: 0
+2021/03/13-22:50:37.394765 7f5ec9ce0a80 Options.create_if_missing: 1
+2021/03/13-22:50:37.394766 7f5ec9ce0a80 Options.paranoid_checks: 1
+2021/03/13-22:50:37.394767 7f5ec9ce0a80 Options.env: 0x7f5eca69a080
+2021/03/13-22:50:37.394767 7f5ec9ce0a80 Options.info_log: 0x194eca0
+2021/03/13-22:50:37.394768 7f5ec9ce0a80 Options.max_file_opening_threads: 16
+2021/03/13-22:50:37.394768 7f5ec9ce0a80 Options.statistics: (nil)
+2021/03/13-22:50:37.394769 7f5ec9ce0a80 Options.use_fsync: 0
+2021/03/13-22:50:37.394770 7f5ec9ce0a80 Options.max_log_file_size: 0
+2021/03/13-22:50:37.394770 7f5ec9ce0a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:50:37.394771 7f5ec9ce0a80 Options.log_file_time_to_roll: 0
+2021/03/13-22:50:37.394771 7f5ec9ce0a80 Options.keep_log_file_num: 1000
+2021/03/13-22:50:37.394772 7f5ec9ce0a80 Options.recycle_log_file_num: 0
+2021/03/13-22:50:37.394773 7f5ec9ce0a80 Options.allow_fallocate: 1
+2021/03/13-22:50:37.394773 7f5ec9ce0a80 Options.allow_mmap_reads: 0
+2021/03/13-22:50:37.394774 7f5ec9ce0a80 Options.allow_mmap_writes: 0
+2021/03/13-22:50:37.394774 7f5ec9ce0a80 Options.use_direct_reads: 0
+2021/03/13-22:50:37.394775 7f5ec9ce0a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:50:37.394775 7f5ec9ce0a80 Options.create_missing_column_families: 0
+2021/03/13-22:50:37.394776 7f5ec9ce0a80 Options.db_log_dir:
+2021/03/13-22:50:37.394776 7f5ec9ce0a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:50:37.394777 7f5ec9ce0a80 Options.table_cache_numshardbits: 6
+2021/03/13-22:50:37.394778 7f5ec9ce0a80 Options.max_subcompactions: 1
+2021/03/13-22:50:37.394778 7f5ec9ce0a80 Options.max_background_flushes: -1
+2021/03/13-22:50:37.394779 7f5ec9ce0a80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:50:37.394779 7f5ec9ce0a80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:50:37.394780 7f5ec9ce0a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:50:37.394781 7f5ec9ce0a80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:50:37.394781 7f5ec9ce0a80 Options.advise_random_on_open: 1
+2021/03/13-22:50:37.394782 7f5ec9ce0a80 Options.db_write_buffer_size: 0
+2021/03/13-22:50:37.394782 7f5ec9ce0a80 Options.write_buffer_manager: 0x1936b90
+2021/03/13-22:50:37.394783 7f5ec9ce0a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:50:37.394783 7f5ec9ce0a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:50:37.394784 7f5ec9ce0a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:50:37.394784 7f5ec9ce0a80 Options.use_adaptive_mutex: 0
+2021/03/13-22:50:37.394785 7f5ec9ce0a80 Options.rate_limiter: (nil)
+2021/03/13-22:50:37.394786 7f5ec9ce0a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:50:37.394793 7f5ec9ce0a80 Options.wal_recovery_mode: 2
+2021/03/13-22:50:37.394794 7f5ec9ce0a80 Options.enable_thread_tracking: 0
+2021/03/13-22:50:37.394795 7f5ec9ce0a80 Options.enable_pipelined_write: 0
+2021/03/13-22:50:37.394795 7f5ec9ce0a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:50:37.394796 7f5ec9ce0a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:50:37.394796 7f5ec9ce0a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:50:37.394797 7f5ec9ce0a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:50:37.394797 7f5ec9ce0a80 Options.row_cache: None
+2021/03/13-22:50:37.394798 7f5ec9ce0a80 Options.wal_filter: None
+2021/03/13-22:50:37.394799 7f5ec9ce0a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:50:37.394799 7f5ec9ce0a80 Options.allow_ingest_behind: 0
+2021/03/13-22:50:37.394800 7f5ec9ce0a80 Options.preserve_deletes: 0
+2021/03/13-22:50:37.394800 7f5ec9ce0a80 Options.two_write_queues: 0
+2021/03/13-22:50:37.394801 7f5ec9ce0a80 Options.manual_wal_flush: 0
+2021/03/13-22:50:37.394802 7f5ec9ce0a80 Options.max_background_jobs: 16
+2021/03/13-22:50:37.394803 7f5ec9ce0a80 Options.max_background_compactions: -1
+2021/03/13-22:50:37.394803 7f5ec9ce0a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:50:37.394804 7f5ec9ce0a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:50:37.394804 7f5ec9ce0a80 Options.delayed_write_rate : 16777216
+2021/03/13-22:50:37.394805 7f5ec9ce0a80 Options.max_total_wal_size: 0
+2021/03/13-22:50:37.394806 7f5ec9ce0a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:50:37.394806 7f5ec9ce0a80 Options.stats_dump_period_sec: 600
+2021/03/13-22:50:37.394807 7f5ec9ce0a80 Options.max_open_files: -1
+2021/03/13-22:50:37.394807 7f5ec9ce0a80 Options.bytes_per_sync: 0
+2021/03/13-22:50:37.394808 7f5ec9ce0a80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:50:37.394808 7f5ec9ce0a80 Options.compaction_readahead_size: 0
+2021/03/13-22:50:37.394809 7f5ec9ce0a80 Compression algorithms supported:
+2021/03/13-22:50:37.394810 7f5ec9ce0a80 Snappy supported: 1
+2021/03/13-22:50:37.394810 7f5ec9ce0a80 Zlib supported: 1
+2021/03/13-22:50:37.394811 7f5ec9ce0a80 Bzip supported: 1
+2021/03/13-22:50:37.394811 7f5ec9ce0a80 LZ4 supported: 1
+2021/03/13-22:50:37.394812 7f5ec9ce0a80 ZSTDNotFinal supported: 1
+2021/03/13-22:50:37.394815 7f5ec9ce0a80 ZSTD supported: 1
+2021/03/13-22:50:37.394818 7f5ec9ce0a80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:50:37.394820 7f5ec9ce0a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:50:37.394905 7f5ec9ce0a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:50:37.394957 7f5ec9ce0a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:50:37.394959 7f5ec9ce0a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:50:37.394960 7f5ec9ce0a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:50:37.394961 7f5ec9ce0a80 Options.compaction_filter: None
+2021/03/13-22:50:37.394961 7f5ec9ce0a80 Options.compaction_filter_factory: None
+2021/03/13-22:50:37.394962 7f5ec9ce0a80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:50:37.394963 7f5ec9ce0a80 Options.table_factory: BlockBasedTable
+2021/03/13-22:50:37.394976 7f5ec9ce0a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1946520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x192bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:50:37.394977 7f5ec9ce0a80 Options.write_buffer_size: 134217728
+2021/03/13-22:50:37.394977 7f5ec9ce0a80 Options.max_write_buffer_number: 6
+2021/03/13-22:50:37.394978 7f5ec9ce0a80 Options.compression[0]: NoCompression
+2021/03/13-22:50:37.394978 7f5ec9ce0a80 Options.compression[1]: NoCompression
+2021/03/13-22:50:37.394979 7f5ec9ce0a80 Options.compression[2]: Snappy
+2021/03/13-22:50:37.394980 7f5ec9ce0a80 Options.compression[3]: Snappy
+2021/03/13-22:50:37.394980 7f5ec9ce0a80 Options.compression[4]: Snappy
+2021/03/13-22:50:37.394981 7f5ec9ce0a80 Options.compression[5]: Snappy
+2021/03/13-22:50:37.394981 7f5ec9ce0a80 Options.compression[6]: Snappy
+2021/03/13-22:50:37.394982 7f5ec9ce0a80 Options.bottommost_compression: Disabled
+2021/03/13-22:50:37.394983 7f5ec9ce0a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:50:37.394983 7f5ec9ce0a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:50:37.394984 7f5ec9ce0a80 Options.num_levels: 7
+2021/03/13-22:50:37.394984 7f5ec9ce0a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:50:37.394985 7f5ec9ce0a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:50:37.394986 7f5ec9ce0a80 Options.compression_opts.window_bits: -14
+2021/03/13-22:50:37.394986 7f5ec9ce0a80 Options.compression_opts.level: -1
+2021/03/13-22:50:37.394987 7f5ec9ce0a80 Options.compression_opts.strategy: 0
+2021/03/13-22:50:37.394987 7f5ec9ce0a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:50:37.394988 7f5ec9ce0a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:50:37.394988 7f5ec9ce0a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:50:37.394989 7f5ec9ce0a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:50:37.394990 7f5ec9ce0a80 Options.target_file_size_base: 67108864
+2021/03/13-22:50:37.394990 7f5ec9ce0a80 Options.target_file_size_multiplier: 1
+2021/03/13-22:50:37.394991 7f5ec9ce0a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:50:37.394991 7f5ec9ce0a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:50:37.394992 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:50:37.394993 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:50:37.395001 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:50:37.395001 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:50:37.395002 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:50:37.395002 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:50:37.395003 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:50:37.395004 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:50:37.395004 7f5ec9ce0a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:50:37.395005 7f5ec9ce0a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:50:37.395005 7f5ec9ce0a80 Options.arena_block_size: 16777216
+2021/03/13-22:50:37.395006 7f5ec9ce0a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:50:37.395006 7f5ec9ce0a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:50:37.395007 7f5ec9ce0a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:50:37.395008 7f5ec9ce0a80 Options.disable_auto_compactions: 0
+2021/03/13-22:50:37.395009 7f5ec9ce0a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:50:37.395010 7f5ec9ce0a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:50:37.395010 7f5ec9ce0a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:50:37.395011 7f5ec9ce0a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:50:37.395011 7f5ec9ce0a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:50:37.395012 7f5ec9ce0a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:50:37.395013 7f5ec9ce0a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:50:37.395014 7f5ec9ce0a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:50:37.395014 7f5ec9ce0a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:50:37.395015 7f5ec9ce0a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:50:37.395015 7f5ec9ce0a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:50:37.395016 7f5ec9ce0a80 Options.table_properties_collectors:
+2021/03/13-22:50:37.395016 7f5ec9ce0a80 Options.inplace_update_support: 0
+2021/03/13-22:50:37.395017 7f5ec9ce0a80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:50:37.395018 7f5ec9ce0a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:50:37.395018 7f5ec9ce0a80 Options.memtable_huge_page_size: 0
+2021/03/13-22:50:37.395019 7f5ec9ce0a80 Options.bloom_locality: 0
+2021/03/13-22:50:37.395019 7f5ec9ce0a80 Options.max_successive_merges: 0
+2021/03/13-22:50:37.395020 7f5ec9ce0a80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:50:37.395021 7f5ec9ce0a80 Options.paranoid_file_checks: 0
+2021/03/13-22:50:37.395021 7f5ec9ce0a80 Options.force_consistency_checks: 0
+2021/03/13-22:50:37.395022 7f5ec9ce0a80 Options.report_bg_io_stats: 0
+2021/03/13-22:50:37.395398 7f5ec9ce0a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:50:37.395401 7f5ec9ce0a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:50:37.395462 7f5ec9ce0a80 EVENT_LOG_v1 {"time_micros": 1615672237395450, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:50:37.395467 7f5ec9ce0a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:50:38.108306 7f5ec9ce0a80 EVENT_LOG_v1 {"time_micros": 1615672238108302, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672238839662 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672238839662
new file mode 100644
index 0000000..7805a1c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672238839662
@@ -0,0 +1,186 @@
+2021/03/13-22:50:38.121031 7f5ec9ce0a80 RocksDB version: 5.11.3
+2021/03/13-22:50:38.121089 7f5ec9ce0a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:50:38.121090 7f5ec9ce0a80 Compile date Mar 13 2021
+2021/03/13-22:50:38.121093 7f5ec9ce0a80 DB SUMMARY
+2021/03/13-22:50:38.121132 7f5ec9ce0a80 CURRENT file: CURRENT
+2021/03/13-22:50:38.121133 7f5ec9ce0a80 IDENTITY file: IDENTITY
+2021/03/13-22:50:38.121137 7f5ec9ce0a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:50:38.121138 7f5ec9ce0a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:50:38.121139 7f5ec9ce0a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:50:38.121141 7f5ec9ce0a80 Options.error_if_exists: 0
+2021/03/13-22:50:38.121142 7f5ec9ce0a80 Options.create_if_missing: 1
+2021/03/13-22:50:38.121143 7f5ec9ce0a80 Options.paranoid_checks: 1
+2021/03/13-22:50:38.121143 7f5ec9ce0a80 Options.env: 0x7f5eca69a080
+2021/03/13-22:50:38.121144 7f5ec9ce0a80 Options.info_log: 0x194eca0
+2021/03/13-22:50:38.121145 7f5ec9ce0a80 Options.max_file_opening_threads: 16
+2021/03/13-22:50:38.121145 7f5ec9ce0a80 Options.statistics: (nil)
+2021/03/13-22:50:38.121146 7f5ec9ce0a80 Options.use_fsync: 0
+2021/03/13-22:50:38.121146 7f5ec9ce0a80 Options.max_log_file_size: 0
+2021/03/13-22:50:38.121147 7f5ec9ce0a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:50:38.121148 7f5ec9ce0a80 Options.log_file_time_to_roll: 0
+2021/03/13-22:50:38.121148 7f5ec9ce0a80 Options.keep_log_file_num: 1000
+2021/03/13-22:50:38.121149 7f5ec9ce0a80 Options.recycle_log_file_num: 0
+2021/03/13-22:50:38.121149 7f5ec9ce0a80 Options.allow_fallocate: 1
+2021/03/13-22:50:38.121150 7f5ec9ce0a80 Options.allow_mmap_reads: 0
+2021/03/13-22:50:38.121150 7f5ec9ce0a80 Options.allow_mmap_writes: 0
+2021/03/13-22:50:38.121151 7f5ec9ce0a80 Options.use_direct_reads: 0
+2021/03/13-22:50:38.121152 7f5ec9ce0a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:50:38.121152 7f5ec9ce0a80 Options.create_missing_column_families: 0
+2021/03/13-22:50:38.121153 7f5ec9ce0a80 Options.db_log_dir:
+2021/03/13-22:50:38.121153 7f5ec9ce0a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:50:38.121154 7f5ec9ce0a80 Options.table_cache_numshardbits: 6
+2021/03/13-22:50:38.121154 7f5ec9ce0a80 Options.max_subcompactions: 1
+2021/03/13-22:50:38.121155 7f5ec9ce0a80 Options.max_background_flushes: -1
+2021/03/13-22:50:38.121156 7f5ec9ce0a80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:50:38.121156 7f5ec9ce0a80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:50:38.121157 7f5ec9ce0a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:50:38.121157 7f5ec9ce0a80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:50:38.121158 7f5ec9ce0a80 Options.advise_random_on_open: 1
+2021/03/13-22:50:38.121158 7f5ec9ce0a80 Options.db_write_buffer_size: 0
+2021/03/13-22:50:38.121159 7f5ec9ce0a80 Options.write_buffer_manager: 0x1936b90
+2021/03/13-22:50:38.121160 7f5ec9ce0a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:50:38.121160 7f5ec9ce0a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:50:38.121161 7f5ec9ce0a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:50:38.121161 7f5ec9ce0a80 Options.use_adaptive_mutex: 0
+2021/03/13-22:50:38.121162 7f5ec9ce0a80 Options.rate_limiter: (nil)
+2021/03/13-22:50:38.121163 7f5ec9ce0a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:50:38.121170 7f5ec9ce0a80 Options.wal_recovery_mode: 2
+2021/03/13-22:50:38.121171 7f5ec9ce0a80 Options.enable_thread_tracking: 0
+2021/03/13-22:50:38.121172 7f5ec9ce0a80 Options.enable_pipelined_write: 0
+2021/03/13-22:50:38.121172 7f5ec9ce0a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:50:38.121173 7f5ec9ce0a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:50:38.121173 7f5ec9ce0a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:50:38.121174 7f5ec9ce0a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:50:38.121174 7f5ec9ce0a80 Options.row_cache: None
+2021/03/13-22:50:38.121175 7f5ec9ce0a80 Options.wal_filter: None
+2021/03/13-22:50:38.121176 7f5ec9ce0a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:50:38.121176 7f5ec9ce0a80 Options.allow_ingest_behind: 0
+2021/03/13-22:50:38.121177 7f5ec9ce0a80 Options.preserve_deletes: 0
+2021/03/13-22:50:38.121177 7f5ec9ce0a80 Options.two_write_queues: 0
+2021/03/13-22:50:38.121178 7f5ec9ce0a80 Options.manual_wal_flush: 0
+2021/03/13-22:50:38.121179 7f5ec9ce0a80 Options.max_background_jobs: 16
+2021/03/13-22:50:38.121179 7f5ec9ce0a80 Options.max_background_compactions: -1
+2021/03/13-22:50:38.121180 7f5ec9ce0a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:50:38.121180 7f5ec9ce0a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:50:38.121181 7f5ec9ce0a80 Options.delayed_write_rate : 16777216
+2021/03/13-22:50:38.121182 7f5ec9ce0a80 Options.max_total_wal_size: 0
+2021/03/13-22:50:38.121182 7f5ec9ce0a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:50:38.121183 7f5ec9ce0a80 Options.stats_dump_period_sec: 600
+2021/03/13-22:50:38.121183 7f5ec9ce0a80 Options.max_open_files: -1
+2021/03/13-22:50:38.121184 7f5ec9ce0a80 Options.bytes_per_sync: 0
+2021/03/13-22:50:38.121185 7f5ec9ce0a80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:50:38.121185 7f5ec9ce0a80 Options.compaction_readahead_size: 0
+2021/03/13-22:50:38.121186 7f5ec9ce0a80 Compression algorithms supported:
+2021/03/13-22:50:38.121186 7f5ec9ce0a80 Snappy supported: 1
+2021/03/13-22:50:38.121187 7f5ec9ce0a80 Zlib supported: 1
+2021/03/13-22:50:38.121187 7f5ec9ce0a80 Bzip supported: 1
+2021/03/13-22:50:38.121188 7f5ec9ce0a80 LZ4 supported: 1
+2021/03/13-22:50:38.121188 7f5ec9ce0a80 ZSTDNotFinal supported: 1
+2021/03/13-22:50:38.121192 7f5ec9ce0a80 ZSTD supported: 1
+2021/03/13-22:50:38.121195 7f5ec9ce0a80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:50:38.121197 7f5ec9ce0a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:50:38.121299 7f5ec9ce0a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:50:38.121354 7f5ec9ce0a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:50:38.121355 7f5ec9ce0a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:50:38.121356 7f5ec9ce0a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:50:38.121357 7f5ec9ce0a80 Options.compaction_filter: None
+2021/03/13-22:50:38.121357 7f5ec9ce0a80 Options.compaction_filter_factory: None
+2021/03/13-22:50:38.121358 7f5ec9ce0a80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:50:38.121359 7f5ec9ce0a80 Options.table_factory: BlockBasedTable
+2021/03/13-22:50:38.121372 7f5ec9ce0a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1946520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x192bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:50:38.121373 7f5ec9ce0a80 Options.write_buffer_size: 134217728
+2021/03/13-22:50:38.121374 7f5ec9ce0a80 Options.max_write_buffer_number: 6
+2021/03/13-22:50:38.121374 7f5ec9ce0a80 Options.compression[0]: NoCompression
+2021/03/13-22:50:38.121375 7f5ec9ce0a80 Options.compression[1]: NoCompression
+2021/03/13-22:50:38.121376 7f5ec9ce0a80 Options.compression[2]: Snappy
+2021/03/13-22:50:38.121376 7f5ec9ce0a80 Options.compression[3]: Snappy
+2021/03/13-22:50:38.121377 7f5ec9ce0a80 Options.compression[4]: Snappy
+2021/03/13-22:50:38.121377 7f5ec9ce0a80 Options.compression[5]: Snappy
+2021/03/13-22:50:38.121378 7f5ec9ce0a80 Options.compression[6]: Snappy
+2021/03/13-22:50:38.121379 7f5ec9ce0a80 Options.bottommost_compression: Disabled
+2021/03/13-22:50:38.121379 7f5ec9ce0a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:50:38.121380 7f5ec9ce0a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:50:38.121380 7f5ec9ce0a80 Options.num_levels: 7
+2021/03/13-22:50:38.121381 7f5ec9ce0a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:50:38.121382 7f5ec9ce0a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:50:38.121382 7f5ec9ce0a80 Options.compression_opts.window_bits: -14
+2021/03/13-22:50:38.121383 7f5ec9ce0a80 Options.compression_opts.level: -1
+2021/03/13-22:50:38.121383 7f5ec9ce0a80 Options.compression_opts.strategy: 0
+2021/03/13-22:50:38.121384 7f5ec9ce0a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:50:38.121384 7f5ec9ce0a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:50:38.121385 7f5ec9ce0a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:50:38.121386 7f5ec9ce0a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:50:38.121386 7f5ec9ce0a80 Options.target_file_size_base: 67108864
+2021/03/13-22:50:38.121387 7f5ec9ce0a80 Options.target_file_size_multiplier: 1
+2021/03/13-22:50:38.121387 7f5ec9ce0a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:50:38.121388 7f5ec9ce0a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:50:38.121388 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:50:38.121390 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:50:38.121398 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:50:38.121399 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:50:38.121400 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:50:38.121400 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:50:38.121401 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:50:38.121401 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:50:38.121402 7f5ec9ce0a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:50:38.121402 7f5ec9ce0a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:50:38.121403 7f5ec9ce0a80 Options.arena_block_size: 16777216
+2021/03/13-22:50:38.121404 7f5ec9ce0a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:50:38.121404 7f5ec9ce0a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:50:38.121405 7f5ec9ce0a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:50:38.121405 7f5ec9ce0a80 Options.disable_auto_compactions: 0
+2021/03/13-22:50:38.121407 7f5ec9ce0a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:50:38.121408 7f5ec9ce0a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:50:38.121408 7f5ec9ce0a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:50:38.121409 7f5ec9ce0a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:50:38.121409 7f5ec9ce0a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:50:38.121410 7f5ec9ce0a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:50:38.121410 7f5ec9ce0a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:50:38.121411 7f5ec9ce0a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:50:38.121412 7f5ec9ce0a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:50:38.121413 7f5ec9ce0a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:50:38.121413 7f5ec9ce0a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:50:38.121414 7f5ec9ce0a80 Options.table_properties_collectors:
+2021/03/13-22:50:38.121414 7f5ec9ce0a80 Options.inplace_update_support: 0
+2021/03/13-22:50:38.121415 7f5ec9ce0a80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:50:38.121415 7f5ec9ce0a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:50:38.121416 7f5ec9ce0a80 Options.memtable_huge_page_size: 0
+2021/03/13-22:50:38.121417 7f5ec9ce0a80 Options.bloom_locality: 0
+2021/03/13-22:50:38.121417 7f5ec9ce0a80 Options.max_successive_merges: 0
+2021/03/13-22:50:38.121418 7f5ec9ce0a80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:50:38.121418 7f5ec9ce0a80 Options.paranoid_file_checks: 0
+2021/03/13-22:50:38.121419 7f5ec9ce0a80 Options.force_consistency_checks: 0
+2021/03/13-22:50:38.121419 7f5ec9ce0a80 Options.report_bg_io_stats: 0
+2021/03/13-22:50:38.121818 7f5ec9ce0a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:50:38.121821 7f5ec9ce0a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:50:38.121884 7f5ec9ce0a80 EVENT_LOG_v1 {"time_micros": 1615672238121872, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:50:38.121889 7f5ec9ce0a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:50:38.826873 7f5ec9ce0a80 EVENT_LOG_v1 {"time_micros": 1615672238826869, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672407367257 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672407367257
new file mode 100644
index 0000000..5c38e4b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672407367257
@@ -0,0 +1,186 @@
+2021/03/13-22:50:38.839947 7f5ec9ce0a80 RocksDB version: 5.11.3
+2021/03/13-22:50:38.840006 7f5ec9ce0a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:50:38.840007 7f5ec9ce0a80 Compile date Mar 13 2021
+2021/03/13-22:50:38.840009 7f5ec9ce0a80 DB SUMMARY
+2021/03/13-22:50:38.840048 7f5ec9ce0a80 CURRENT file: CURRENT
+2021/03/13-22:50:38.840049 7f5ec9ce0a80 IDENTITY file: IDENTITY
+2021/03/13-22:50:38.840052 7f5ec9ce0a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:50:38.840054 7f5ec9ce0a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:50:38.840054 7f5ec9ce0a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:50:38.840057 7f5ec9ce0a80 Options.error_if_exists: 0
+2021/03/13-22:50:38.840057 7f5ec9ce0a80 Options.create_if_missing: 1
+2021/03/13-22:50:38.840058 7f5ec9ce0a80 Options.paranoid_checks: 1
+2021/03/13-22:50:38.840059 7f5ec9ce0a80 Options.env: 0x7f5eca69a080
+2021/03/13-22:50:38.840059 7f5ec9ce0a80 Options.info_log: 0x194eca0
+2021/03/13-22:50:38.840060 7f5ec9ce0a80 Options.max_file_opening_threads: 16
+2021/03/13-22:50:38.840060 7f5ec9ce0a80 Options.statistics: (nil)
+2021/03/13-22:50:38.840061 7f5ec9ce0a80 Options.use_fsync: 0
+2021/03/13-22:50:38.840062 7f5ec9ce0a80 Options.max_log_file_size: 0
+2021/03/13-22:50:38.840062 7f5ec9ce0a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:50:38.840063 7f5ec9ce0a80 Options.log_file_time_to_roll: 0
+2021/03/13-22:50:38.840063 7f5ec9ce0a80 Options.keep_log_file_num: 1000
+2021/03/13-22:50:38.840064 7f5ec9ce0a80 Options.recycle_log_file_num: 0
+2021/03/13-22:50:38.840065 7f5ec9ce0a80 Options.allow_fallocate: 1
+2021/03/13-22:50:38.840065 7f5ec9ce0a80 Options.allow_mmap_reads: 0
+2021/03/13-22:50:38.840066 7f5ec9ce0a80 Options.allow_mmap_writes: 0
+2021/03/13-22:50:38.840066 7f5ec9ce0a80 Options.use_direct_reads: 0
+2021/03/13-22:50:38.840067 7f5ec9ce0a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:50:38.840067 7f5ec9ce0a80 Options.create_missing_column_families: 0
+2021/03/13-22:50:38.840068 7f5ec9ce0a80 Options.db_log_dir:
+2021/03/13-22:50:38.840068 7f5ec9ce0a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:50:38.840069 7f5ec9ce0a80 Options.table_cache_numshardbits: 6
+2021/03/13-22:50:38.840070 7f5ec9ce0a80 Options.max_subcompactions: 1
+2021/03/13-22:50:38.840070 7f5ec9ce0a80 Options.max_background_flushes: -1
+2021/03/13-22:50:38.840071 7f5ec9ce0a80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:50:38.840071 7f5ec9ce0a80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:50:38.840072 7f5ec9ce0a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:50:38.840072 7f5ec9ce0a80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:50:38.840073 7f5ec9ce0a80 Options.advise_random_on_open: 1
+2021/03/13-22:50:38.840074 7f5ec9ce0a80 Options.db_write_buffer_size: 0
+2021/03/13-22:50:38.840074 7f5ec9ce0a80 Options.write_buffer_manager: 0x1936b90
+2021/03/13-22:50:38.840075 7f5ec9ce0a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:50:38.840075 7f5ec9ce0a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:50:38.840076 7f5ec9ce0a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:50:38.840076 7f5ec9ce0a80 Options.use_adaptive_mutex: 0
+2021/03/13-22:50:38.840077 7f5ec9ce0a80 Options.rate_limiter: (nil)
+2021/03/13-22:50:38.840078 7f5ec9ce0a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:50:38.840086 7f5ec9ce0a80 Options.wal_recovery_mode: 2
+2021/03/13-22:50:38.840086 7f5ec9ce0a80 Options.enable_thread_tracking: 0
+2021/03/13-22:50:38.840087 7f5ec9ce0a80 Options.enable_pipelined_write: 0
+2021/03/13-22:50:38.840088 7f5ec9ce0a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:50:38.840088 7f5ec9ce0a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:50:38.840089 7f5ec9ce0a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:50:38.840089 7f5ec9ce0a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:50:38.840090 7f5ec9ce0a80 Options.row_cache: None
+2021/03/13-22:50:38.840090 7f5ec9ce0a80 Options.wal_filter: None
+2021/03/13-22:50:38.840091 7f5ec9ce0a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:50:38.840092 7f5ec9ce0a80 Options.allow_ingest_behind: 0
+2021/03/13-22:50:38.840092 7f5ec9ce0a80 Options.preserve_deletes: 0
+2021/03/13-22:50:38.840093 7f5ec9ce0a80 Options.two_write_queues: 0
+2021/03/13-22:50:38.840093 7f5ec9ce0a80 Options.manual_wal_flush: 0
+2021/03/13-22:50:38.840094 7f5ec9ce0a80 Options.max_background_jobs: 16
+2021/03/13-22:50:38.840095 7f5ec9ce0a80 Options.max_background_compactions: -1
+2021/03/13-22:50:38.840095 7f5ec9ce0a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:50:38.840096 7f5ec9ce0a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:50:38.840096 7f5ec9ce0a80 Options.delayed_write_rate : 16777216
+2021/03/13-22:50:38.840097 7f5ec9ce0a80 Options.max_total_wal_size: 0
+2021/03/13-22:50:38.840098 7f5ec9ce0a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:50:38.840098 7f5ec9ce0a80 Options.stats_dump_period_sec: 600
+2021/03/13-22:50:38.840099 7f5ec9ce0a80 Options.max_open_files: -1
+2021/03/13-22:50:38.840099 7f5ec9ce0a80 Options.bytes_per_sync: 0
+2021/03/13-22:50:38.840100 7f5ec9ce0a80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:50:38.840100 7f5ec9ce0a80 Options.compaction_readahead_size: 0
+2021/03/13-22:50:38.840101 7f5ec9ce0a80 Compression algorithms supported:
+2021/03/13-22:50:38.840102 7f5ec9ce0a80 Snappy supported: 1
+2021/03/13-22:50:38.840102 7f5ec9ce0a80 Zlib supported: 1
+2021/03/13-22:50:38.840103 7f5ec9ce0a80 Bzip supported: 1
+2021/03/13-22:50:38.840103 7f5ec9ce0a80 LZ4 supported: 1
+2021/03/13-22:50:38.840104 7f5ec9ce0a80 ZSTDNotFinal supported: 1
+2021/03/13-22:50:38.840108 7f5ec9ce0a80 ZSTD supported: 1
+2021/03/13-22:50:38.840111 7f5ec9ce0a80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:50:38.840112 7f5ec9ce0a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:50:38.840200 7f5ec9ce0a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:50:38.840270 7f5ec9ce0a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:50:38.840272 7f5ec9ce0a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:50:38.840273 7f5ec9ce0a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:50:38.840274 7f5ec9ce0a80 Options.compaction_filter: None
+2021/03/13-22:50:38.840274 7f5ec9ce0a80 Options.compaction_filter_factory: None
+2021/03/13-22:50:38.840275 7f5ec9ce0a80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:50:38.840276 7f5ec9ce0a80 Options.table_factory: BlockBasedTable
+2021/03/13-22:50:38.840289 7f5ec9ce0a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1946520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x192bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:50:38.840290 7f5ec9ce0a80 Options.write_buffer_size: 134217728
+2021/03/13-22:50:38.840290 7f5ec9ce0a80 Options.max_write_buffer_number: 6
+2021/03/13-22:50:38.840291 7f5ec9ce0a80 Options.compression[0]: NoCompression
+2021/03/13-22:50:38.840292 7f5ec9ce0a80 Options.compression[1]: NoCompression
+2021/03/13-22:50:38.840292 7f5ec9ce0a80 Options.compression[2]: Snappy
+2021/03/13-22:50:38.840293 7f5ec9ce0a80 Options.compression[3]: Snappy
+2021/03/13-22:50:38.840294 7f5ec9ce0a80 Options.compression[4]: Snappy
+2021/03/13-22:50:38.840294 7f5ec9ce0a80 Options.compression[5]: Snappy
+2021/03/13-22:50:38.840295 7f5ec9ce0a80 Options.compression[6]: Snappy
+2021/03/13-22:50:38.840295 7f5ec9ce0a80 Options.bottommost_compression: Disabled
+2021/03/13-22:50:38.840296 7f5ec9ce0a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:50:38.840297 7f5ec9ce0a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:50:38.840297 7f5ec9ce0a80 Options.num_levels: 7
+2021/03/13-22:50:38.840298 7f5ec9ce0a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:50:38.840298 7f5ec9ce0a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:50:38.840299 7f5ec9ce0a80 Options.compression_opts.window_bits: -14
+2021/03/13-22:50:38.840299 7f5ec9ce0a80 Options.compression_opts.level: -1
+2021/03/13-22:50:38.840300 7f5ec9ce0a80 Options.compression_opts.strategy: 0
+2021/03/13-22:50:38.840301 7f5ec9ce0a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:50:38.840301 7f5ec9ce0a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:50:38.840302 7f5ec9ce0a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:50:38.840302 7f5ec9ce0a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:50:38.840303 7f5ec9ce0a80 Options.target_file_size_base: 67108864
+2021/03/13-22:50:38.840303 7f5ec9ce0a80 Options.target_file_size_multiplier: 1
+2021/03/13-22:50:38.840304 7f5ec9ce0a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:50:38.840305 7f5ec9ce0a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:50:38.840305 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:50:38.840307 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:50:38.840315 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:50:38.840316 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:50:38.840317 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:50:38.840317 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:50:38.840318 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:50:38.840318 7f5ec9ce0a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:50:38.840319 7f5ec9ce0a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:50:38.840319 7f5ec9ce0a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:50:38.840320 7f5ec9ce0a80 Options.arena_block_size: 16777216
+2021/03/13-22:50:38.840320 7f5ec9ce0a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:50:38.840321 7f5ec9ce0a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:50:38.840322 7f5ec9ce0a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:50:38.840322 7f5ec9ce0a80 Options.disable_auto_compactions: 0
+2021/03/13-22:50:38.840324 7f5ec9ce0a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:50:38.840325 7f5ec9ce0a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:50:38.840325 7f5ec9ce0a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:50:38.840326 7f5ec9ce0a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:50:38.840326 7f5ec9ce0a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:50:38.840327 7f5ec9ce0a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:50:38.840328 7f5ec9ce0a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:50:38.840329 7f5ec9ce0a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:50:38.840329 7f5ec9ce0a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:50:38.840330 7f5ec9ce0a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:50:38.840330 7f5ec9ce0a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:50:38.840331 7f5ec9ce0a80 Options.table_properties_collectors:
+2021/03/13-22:50:38.840332 7f5ec9ce0a80 Options.inplace_update_support: 0
+2021/03/13-22:50:38.840332 7f5ec9ce0a80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:50:38.840333 7f5ec9ce0a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:50:38.840334 7f5ec9ce0a80 Options.memtable_huge_page_size: 0
+2021/03/13-22:50:38.840334 7f5ec9ce0a80 Options.bloom_locality: 0
+2021/03/13-22:50:38.840335 7f5ec9ce0a80 Options.max_successive_merges: 0
+2021/03/13-22:50:38.840335 7f5ec9ce0a80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:50:38.840336 7f5ec9ce0a80 Options.paranoid_file_checks: 0
+2021/03/13-22:50:38.840336 7f5ec9ce0a80 Options.force_consistency_checks: 0
+2021/03/13-22:50:38.840337 7f5ec9ce0a80 Options.report_bg_io_stats: 0
+2021/03/13-22:50:38.840714 7f5ec9ce0a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:50:38.840716 7f5ec9ce0a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:50:38.840779 7f5ec9ce0a80 EVENT_LOG_v1 {"time_micros": 1615672238840767, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:50:38.840784 7f5ec9ce0a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:50:39.549929 7f5ec9ce0a80 EVENT_LOG_v1 {"time_micros": 1615672239549926, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672408088398 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672408088398
new file mode 100644
index 0000000..6581001
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672408088398
@@ -0,0 +1,186 @@
+2021/03/13-22:53:27.367561 7f7af842da80 RocksDB version: 5.11.3
+2021/03/13-22:53:27.367622 7f7af842da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:53:27.367623 7f7af842da80 Compile date Mar 13 2021
+2021/03/13-22:53:27.367626 7f7af842da80 DB SUMMARY
+2021/03/13-22:53:27.367665 7f7af842da80 CURRENT file: CURRENT
+2021/03/13-22:53:27.367666 7f7af842da80 IDENTITY file: IDENTITY
+2021/03/13-22:53:27.367670 7f7af842da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:53:27.367671 7f7af842da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:53:27.367672 7f7af842da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:53:27.367675 7f7af842da80 Options.error_if_exists: 0
+2021/03/13-22:53:27.367676 7f7af842da80 Options.create_if_missing: 1
+2021/03/13-22:53:27.367676 7f7af842da80 Options.paranoid_checks: 1
+2021/03/13-22:53:27.367677 7f7af842da80 Options.env: 0x7f7af8de7080
+2021/03/13-22:53:27.367678 7f7af842da80 Options.info_log: 0x1202ca0
+2021/03/13-22:53:27.367679 7f7af842da80 Options.max_file_opening_threads: 16
+2021/03/13-22:53:27.367679 7f7af842da80 Options.statistics: (nil)
+2021/03/13-22:53:27.367680 7f7af842da80 Options.use_fsync: 0
+2021/03/13-22:53:27.367680 7f7af842da80 Options.max_log_file_size: 0
+2021/03/13-22:53:27.367681 7f7af842da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:53:27.367682 7f7af842da80 Options.log_file_time_to_roll: 0
+2021/03/13-22:53:27.367682 7f7af842da80 Options.keep_log_file_num: 1000
+2021/03/13-22:53:27.367683 7f7af842da80 Options.recycle_log_file_num: 0
+2021/03/13-22:53:27.367684 7f7af842da80 Options.allow_fallocate: 1
+2021/03/13-22:53:27.367684 7f7af842da80 Options.allow_mmap_reads: 0
+2021/03/13-22:53:27.367685 7f7af842da80 Options.allow_mmap_writes: 0
+2021/03/13-22:53:27.367686 7f7af842da80 Options.use_direct_reads: 0
+2021/03/13-22:53:27.367686 7f7af842da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:53:27.367687 7f7af842da80 Options.create_missing_column_families: 0
+2021/03/13-22:53:27.367688 7f7af842da80 Options.db_log_dir:
+2021/03/13-22:53:27.367688 7f7af842da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:53:27.367689 7f7af842da80 Options.table_cache_numshardbits: 6
+2021/03/13-22:53:27.367689 7f7af842da80 Options.max_subcompactions: 1
+2021/03/13-22:53:27.367690 7f7af842da80 Options.max_background_flushes: -1
+2021/03/13-22:53:27.367691 7f7af842da80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:53:27.367691 7f7af842da80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:53:27.367692 7f7af842da80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:53:27.367693 7f7af842da80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:53:27.367693 7f7af842da80 Options.advise_random_on_open: 1
+2021/03/13-22:53:27.367694 7f7af842da80 Options.db_write_buffer_size: 0
+2021/03/13-22:53:27.367695 7f7af842da80 Options.write_buffer_manager: 0x11eab90
+2021/03/13-22:53:27.367695 7f7af842da80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:53:27.367696 7f7af842da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:53:27.367696 7f7af842da80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:53:27.367697 7f7af842da80 Options.use_adaptive_mutex: 0
+2021/03/13-22:53:27.367698 7f7af842da80 Options.rate_limiter: (nil)
+2021/03/13-22:53:27.367699 7f7af842da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:53:27.367709 7f7af842da80 Options.wal_recovery_mode: 2
+2021/03/13-22:53:27.367710 7f7af842da80 Options.enable_thread_tracking: 0
+2021/03/13-22:53:27.367710 7f7af842da80 Options.enable_pipelined_write: 0
+2021/03/13-22:53:27.367711 7f7af842da80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:53:27.367712 7f7af842da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:53:27.367712 7f7af842da80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:53:27.367713 7f7af842da80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:53:27.367714 7f7af842da80 Options.row_cache: None
+2021/03/13-22:53:27.367714 7f7af842da80 Options.wal_filter: None
+2021/03/13-22:53:27.367715 7f7af842da80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:53:27.367716 7f7af842da80 Options.allow_ingest_behind: 0
+2021/03/13-22:53:27.367716 7f7af842da80 Options.preserve_deletes: 0
+2021/03/13-22:53:27.367717 7f7af842da80 Options.two_write_queues: 0
+2021/03/13-22:53:27.367717 7f7af842da80 Options.manual_wal_flush: 0
+2021/03/13-22:53:27.367719 7f7af842da80 Options.max_background_jobs: 16
+2021/03/13-22:53:27.367719 7f7af842da80 Options.max_background_compactions: -1
+2021/03/13-22:53:27.367720 7f7af842da80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:53:27.367720 7f7af842da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:53:27.367721 7f7af842da80 Options.delayed_write_rate : 16777216
+2021/03/13-22:53:27.367722 7f7af842da80 Options.max_total_wal_size: 0
+2021/03/13-22:53:27.367722 7f7af842da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:53:27.367723 7f7af842da80 Options.stats_dump_period_sec: 600
+2021/03/13-22:53:27.367724 7f7af842da80 Options.max_open_files: -1
+2021/03/13-22:53:27.367724 7f7af842da80 Options.bytes_per_sync: 0
+2021/03/13-22:53:27.367725 7f7af842da80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:53:27.367726 7f7af842da80 Options.compaction_readahead_size: 0
+2021/03/13-22:53:27.367726 7f7af842da80 Compression algorithms supported:
+2021/03/13-22:53:27.367727 7f7af842da80 Snappy supported: 1
+2021/03/13-22:53:27.367728 7f7af842da80 Zlib supported: 1
+2021/03/13-22:53:27.367728 7f7af842da80 Bzip supported: 1
+2021/03/13-22:53:27.367729 7f7af842da80 LZ4 supported: 1
+2021/03/13-22:53:27.367729 7f7af842da80 ZSTDNotFinal supported: 1
+2021/03/13-22:53:27.367734 7f7af842da80 ZSTD supported: 1
+2021/03/13-22:53:27.367737 7f7af842da80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:53:27.367738 7f7af842da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:53:27.367842 7f7af842da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:53:27.367904 7f7af842da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:53:27.367906 7f7af842da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:53:27.367907 7f7af842da80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:53:27.367908 7f7af842da80 Options.compaction_filter: None
+2021/03/13-22:53:27.367908 7f7af842da80 Options.compaction_filter_factory: None
+2021/03/13-22:53:27.367909 7f7af842da80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:53:27.367910 7f7af842da80 Options.table_factory: BlockBasedTable
+2021/03/13-22:53:27.367924 7f7af842da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x11fa520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x11dfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:53:27.367925 7f7af842da80 Options.write_buffer_size: 134217728
+2021/03/13-22:53:27.367926 7f7af842da80 Options.max_write_buffer_number: 6
+2021/03/13-22:53:27.367926 7f7af842da80 Options.compression[0]: NoCompression
+2021/03/13-22:53:27.367927 7f7af842da80 Options.compression[1]: NoCompression
+2021/03/13-22:53:27.367928 7f7af842da80 Options.compression[2]: Snappy
+2021/03/13-22:53:27.367929 7f7af842da80 Options.compression[3]: Snappy
+2021/03/13-22:53:27.367929 7f7af842da80 Options.compression[4]: Snappy
+2021/03/13-22:53:27.367930 7f7af842da80 Options.compression[5]: Snappy
+2021/03/13-22:53:27.367930 7f7af842da80 Options.compression[6]: Snappy
+2021/03/13-22:53:27.367931 7f7af842da80 Options.bottommost_compression: Disabled
+2021/03/13-22:53:27.367932 7f7af842da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:53:27.367933 7f7af842da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:53:27.367933 7f7af842da80 Options.num_levels: 7
+2021/03/13-22:53:27.367934 7f7af842da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:53:27.367935 7f7af842da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:53:27.367935 7f7af842da80 Options.compression_opts.window_bits: -14
+2021/03/13-22:53:27.367936 7f7af842da80 Options.compression_opts.level: -1
+2021/03/13-22:53:27.367937 7f7af842da80 Options.compression_opts.strategy: 0
+2021/03/13-22:53:27.367937 7f7af842da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:53:27.367938 7f7af842da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:53:27.367939 7f7af842da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:53:27.367939 7f7af842da80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:53:27.367940 7f7af842da80 Options.target_file_size_base: 67108864
+2021/03/13-22:53:27.367941 7f7af842da80 Options.target_file_size_multiplier: 1
+2021/03/13-22:53:27.367941 7f7af842da80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:53:27.367942 7f7af842da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:53:27.367943 7f7af842da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:53:27.367944 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:53:27.367952 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:53:27.367953 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:53:27.367954 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:53:27.367955 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:53:27.367955 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:53:27.367956 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:53:27.367956 7f7af842da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:53:27.367957 7f7af842da80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:53:27.367958 7f7af842da80 Options.arena_block_size: 16777216
+2021/03/13-22:53:27.367958 7f7af842da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:53:27.367959 7f7af842da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:53:27.367960 7f7af842da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:53:27.367960 7f7af842da80 Options.disable_auto_compactions: 0
+2021/03/13-22:53:27.367962 7f7af842da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:53:27.367962 7f7af842da80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:53:27.367963 7f7af842da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:53:27.367964 7f7af842da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:53:27.367964 7f7af842da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:53:27.367965 7f7af842da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:53:27.367966 7f7af842da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:53:27.367967 7f7af842da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:53:27.367967 7f7af842da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:53:27.367968 7f7af842da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:53:27.367969 7f7af842da80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:53:27.367969 7f7af842da80 Options.table_properties_collectors:
+2021/03/13-22:53:27.367970 7f7af842da80 Options.inplace_update_support: 0
+2021/03/13-22:53:27.367970 7f7af842da80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:53:27.367971 7f7af842da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:53:27.367972 7f7af842da80 Options.memtable_huge_page_size: 0
+2021/03/13-22:53:27.367973 7f7af842da80 Options.bloom_locality: 0
+2021/03/13-22:53:27.367973 7f7af842da80 Options.max_successive_merges: 0
+2021/03/13-22:53:27.367974 7f7af842da80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:53:27.367974 7f7af842da80 Options.paranoid_file_checks: 0
+2021/03/13-22:53:27.367975 7f7af842da80 Options.force_consistency_checks: 0
+2021/03/13-22:53:27.367976 7f7af842da80 Options.report_bg_io_stats: 0
+2021/03/13-22:53:27.368516 7f7af842da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:53:27.368519 7f7af842da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:53:27.368598 7f7af842da80 EVENT_LOG_v1 {"time_micros": 1615672407368587, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:53:27.368605 7f7af842da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:53:28.076049 7f7af842da80 EVENT_LOG_v1 {"time_micros": 1615672408076046, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672408794332 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672408794332
new file mode 100644
index 0000000..6be3025
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672408794332
@@ -0,0 +1,186 @@
+2021/03/13-22:53:28.088712 7f7af842da80 RocksDB version: 5.11.3
+2021/03/13-22:53:28.088772 7f7af842da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:53:28.088774 7f7af842da80 Compile date Mar 13 2021
+2021/03/13-22:53:28.088777 7f7af842da80 DB SUMMARY
+2021/03/13-22:53:28.088827 7f7af842da80 CURRENT file: CURRENT
+2021/03/13-22:53:28.088829 7f7af842da80 IDENTITY file: IDENTITY
+2021/03/13-22:53:28.088833 7f7af842da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:53:28.088834 7f7af842da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:53:28.088835 7f7af842da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:53:28.088837 7f7af842da80 Options.error_if_exists: 0
+2021/03/13-22:53:28.088838 7f7af842da80 Options.create_if_missing: 1
+2021/03/13-22:53:28.088839 7f7af842da80 Options.paranoid_checks: 1
+2021/03/13-22:53:28.088839 7f7af842da80 Options.env: 0x7f7af8de7080
+2021/03/13-22:53:28.088840 7f7af842da80 Options.info_log: 0x1202ca0
+2021/03/13-22:53:28.088841 7f7af842da80 Options.max_file_opening_threads: 16
+2021/03/13-22:53:28.088841 7f7af842da80 Options.statistics: (nil)
+2021/03/13-22:53:28.088842 7f7af842da80 Options.use_fsync: 0
+2021/03/13-22:53:28.088842 7f7af842da80 Options.max_log_file_size: 0
+2021/03/13-22:53:28.088843 7f7af842da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:53:28.088844 7f7af842da80 Options.log_file_time_to_roll: 0
+2021/03/13-22:53:28.088844 7f7af842da80 Options.keep_log_file_num: 1000
+2021/03/13-22:53:28.088845 7f7af842da80 Options.recycle_log_file_num: 0
+2021/03/13-22:53:28.088845 7f7af842da80 Options.allow_fallocate: 1
+2021/03/13-22:53:28.088846 7f7af842da80 Options.allow_mmap_reads: 0
+2021/03/13-22:53:28.088847 7f7af842da80 Options.allow_mmap_writes: 0
+2021/03/13-22:53:28.088847 7f7af842da80 Options.use_direct_reads: 0
+2021/03/13-22:53:28.088848 7f7af842da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:53:28.088848 7f7af842da80 Options.create_missing_column_families: 0
+2021/03/13-22:53:28.088849 7f7af842da80 Options.db_log_dir:
+2021/03/13-22:53:28.088849 7f7af842da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:53:28.088850 7f7af842da80 Options.table_cache_numshardbits: 6
+2021/03/13-22:53:28.088850 7f7af842da80 Options.max_subcompactions: 1
+2021/03/13-22:53:28.088851 7f7af842da80 Options.max_background_flushes: -1
+2021/03/13-22:53:28.088852 7f7af842da80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:53:28.088852 7f7af842da80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:53:28.088853 7f7af842da80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:53:28.088853 7f7af842da80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:53:28.088854 7f7af842da80 Options.advise_random_on_open: 1
+2021/03/13-22:53:28.088854 7f7af842da80 Options.db_write_buffer_size: 0
+2021/03/13-22:53:28.088855 7f7af842da80 Options.write_buffer_manager: 0x11eab90
+2021/03/13-22:53:28.088856 7f7af842da80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:53:28.088856 7f7af842da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:53:28.088857 7f7af842da80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:53:28.088857 7f7af842da80 Options.use_adaptive_mutex: 0
+2021/03/13-22:53:28.088858 7f7af842da80 Options.rate_limiter: (nil)
+2021/03/13-22:53:28.088859 7f7af842da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:53:28.088869 7f7af842da80 Options.wal_recovery_mode: 2
+2021/03/13-22:53:28.088869 7f7af842da80 Options.enable_thread_tracking: 0
+2021/03/13-22:53:28.088870 7f7af842da80 Options.enable_pipelined_write: 0
+2021/03/13-22:53:28.088870 7f7af842da80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:53:28.088871 7f7af842da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:53:28.088872 7f7af842da80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:53:28.088872 7f7af842da80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:53:28.088873 7f7af842da80 Options.row_cache: None
+2021/03/13-22:53:28.088873 7f7af842da80 Options.wal_filter: None
+2021/03/13-22:53:28.088874 7f7af842da80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:53:28.088874 7f7af842da80 Options.allow_ingest_behind: 0
+2021/03/13-22:53:28.088875 7f7af842da80 Options.preserve_deletes: 0
+2021/03/13-22:53:28.088876 7f7af842da80 Options.two_write_queues: 0
+2021/03/13-22:53:28.088876 7f7af842da80 Options.manual_wal_flush: 0
+2021/03/13-22:53:28.088877 7f7af842da80 Options.max_background_jobs: 16
+2021/03/13-22:53:28.088878 7f7af842da80 Options.max_background_compactions: -1
+2021/03/13-22:53:28.088878 7f7af842da80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:53:28.088879 7f7af842da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:53:28.088880 7f7af842da80 Options.delayed_write_rate : 16777216
+2021/03/13-22:53:28.088880 7f7af842da80 Options.max_total_wal_size: 0
+2021/03/13-22:53:28.088881 7f7af842da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:53:28.088881 7f7af842da80 Options.stats_dump_period_sec: 600
+2021/03/13-22:53:28.088882 7f7af842da80 Options.max_open_files: -1
+2021/03/13-22:53:28.088882 7f7af842da80 Options.bytes_per_sync: 0
+2021/03/13-22:53:28.088883 7f7af842da80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:53:28.088884 7f7af842da80 Options.compaction_readahead_size: 0
+2021/03/13-22:53:28.088884 7f7af842da80 Compression algorithms supported:
+2021/03/13-22:53:28.088885 7f7af842da80 Snappy supported: 1
+2021/03/13-22:53:28.088885 7f7af842da80 Zlib supported: 1
+2021/03/13-22:53:28.088886 7f7af842da80 Bzip supported: 1
+2021/03/13-22:53:28.088886 7f7af842da80 LZ4 supported: 1
+2021/03/13-22:53:28.088887 7f7af842da80 ZSTDNotFinal supported: 1
+2021/03/13-22:53:28.088891 7f7af842da80 ZSTD supported: 1
+2021/03/13-22:53:28.088894 7f7af842da80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:53:28.088895 7f7af842da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:53:28.088986 7f7af842da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:53:28.089041 7f7af842da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:53:28.089043 7f7af842da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:53:28.089044 7f7af842da80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:53:28.089045 7f7af842da80 Options.compaction_filter: None
+2021/03/13-22:53:28.089045 7f7af842da80 Options.compaction_filter_factory: None
+2021/03/13-22:53:28.089046 7f7af842da80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:53:28.089047 7f7af842da80 Options.table_factory: BlockBasedTable
+2021/03/13-22:53:28.089060 7f7af842da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x11fa520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x11dfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:53:28.089061 7f7af842da80 Options.write_buffer_size: 134217728
+2021/03/13-22:53:28.089062 7f7af842da80 Options.max_write_buffer_number: 6
+2021/03/13-22:53:28.089063 7f7af842da80 Options.compression[0]: NoCompression
+2021/03/13-22:53:28.089063 7f7af842da80 Options.compression[1]: NoCompression
+2021/03/13-22:53:28.089064 7f7af842da80 Options.compression[2]: Snappy
+2021/03/13-22:53:28.089065 7f7af842da80 Options.compression[3]: Snappy
+2021/03/13-22:53:28.089065 7f7af842da80 Options.compression[4]: Snappy
+2021/03/13-22:53:28.089066 7f7af842da80 Options.compression[5]: Snappy
+2021/03/13-22:53:28.089066 7f7af842da80 Options.compression[6]: Snappy
+2021/03/13-22:53:28.089067 7f7af842da80 Options.bottommost_compression: Disabled
+2021/03/13-22:53:28.089068 7f7af842da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:53:28.089068 7f7af842da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:53:28.089069 7f7af842da80 Options.num_levels: 7
+2021/03/13-22:53:28.089069 7f7af842da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:53:28.089070 7f7af842da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:53:28.089071 7f7af842da80 Options.compression_opts.window_bits: -14
+2021/03/13-22:53:28.089071 7f7af842da80 Options.compression_opts.level: -1
+2021/03/13-22:53:28.089072 7f7af842da80 Options.compression_opts.strategy: 0
+2021/03/13-22:53:28.089072 7f7af842da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:53:28.089073 7f7af842da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:53:28.089074 7f7af842da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:53:28.089074 7f7af842da80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:53:28.089075 7f7af842da80 Options.target_file_size_base: 67108864
+2021/03/13-22:53:28.089075 7f7af842da80 Options.target_file_size_multiplier: 1
+2021/03/13-22:53:28.089076 7f7af842da80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:53:28.089077 7f7af842da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:53:28.089077 7f7af842da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:53:28.089079 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:53:28.089086 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:53:28.089087 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:53:28.089087 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:53:28.089088 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:53:28.089089 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:53:28.089089 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:53:28.089090 7f7af842da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:53:28.089090 7f7af842da80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:53:28.089091 7f7af842da80 Options.arena_block_size: 16777216
+2021/03/13-22:53:28.089091 7f7af842da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:53:28.089092 7f7af842da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:53:28.089093 7f7af842da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:53:28.089093 7f7af842da80 Options.disable_auto_compactions: 0
+2021/03/13-22:53:28.089095 7f7af842da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:53:28.089096 7f7af842da80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:53:28.089096 7f7af842da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:53:28.089097 7f7af842da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:53:28.089097 7f7af842da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:53:28.089098 7f7af842da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:53:28.089098 7f7af842da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:53:28.089099 7f7af842da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:53:28.089100 7f7af842da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:53:28.089101 7f7af842da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:53:28.089101 7f7af842da80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:53:28.089102 7f7af842da80 Options.table_properties_collectors:
+2021/03/13-22:53:28.089102 7f7af842da80 Options.inplace_update_support: 0
+2021/03/13-22:53:28.089103 7f7af842da80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:53:28.089103 7f7af842da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:53:28.089104 7f7af842da80 Options.memtable_huge_page_size: 0
+2021/03/13-22:53:28.089105 7f7af842da80 Options.bloom_locality: 0
+2021/03/13-22:53:28.089105 7f7af842da80 Options.max_successive_merges: 0
+2021/03/13-22:53:28.089106 7f7af842da80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:53:28.089107 7f7af842da80 Options.paranoid_file_checks: 0
+2021/03/13-22:53:28.089107 7f7af842da80 Options.force_consistency_checks: 0
+2021/03/13-22:53:28.089108 7f7af842da80 Options.report_bg_io_stats: 0
+2021/03/13-22:53:28.089489 7f7af842da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:53:28.089492 7f7af842da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:53:28.089555 7f7af842da80 EVENT_LOG_v1 {"time_micros": 1615672408089545, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:53:28.089560 7f7af842da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:53:28.781788 7f7af842da80 EVENT_LOG_v1 {"time_micros": 1615672408781785, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672409512501 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672409512501
new file mode 100644
index 0000000..040ab9b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672409512501
@@ -0,0 +1,186 @@
+2021/03/13-22:53:28.794620 7f7af842da80 RocksDB version: 5.11.3
+2021/03/13-22:53:28.794677 7f7af842da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:53:28.794679 7f7af842da80 Compile date Mar 13 2021
+2021/03/13-22:53:28.794681 7f7af842da80 DB SUMMARY
+2021/03/13-22:53:28.794719 7f7af842da80 CURRENT file: CURRENT
+2021/03/13-22:53:28.794720 7f7af842da80 IDENTITY file: IDENTITY
+2021/03/13-22:53:28.794724 7f7af842da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:53:28.794725 7f7af842da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:53:28.794726 7f7af842da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:53:28.794729 7f7af842da80 Options.error_if_exists: 0
+2021/03/13-22:53:28.794729 7f7af842da80 Options.create_if_missing: 1
+2021/03/13-22:53:28.794730 7f7af842da80 Options.paranoid_checks: 1
+2021/03/13-22:53:28.794731 7f7af842da80 Options.env: 0x7f7af8de7080
+2021/03/13-22:53:28.794731 7f7af842da80 Options.info_log: 0x1202ca0
+2021/03/13-22:53:28.794732 7f7af842da80 Options.max_file_opening_threads: 16
+2021/03/13-22:53:28.794732 7f7af842da80 Options.statistics: (nil)
+2021/03/13-22:53:28.794733 7f7af842da80 Options.use_fsync: 0
+2021/03/13-22:53:28.794734 7f7af842da80 Options.max_log_file_size: 0
+2021/03/13-22:53:28.794734 7f7af842da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:53:28.794735 7f7af842da80 Options.log_file_time_to_roll: 0
+2021/03/13-22:53:28.794736 7f7af842da80 Options.keep_log_file_num: 1000
+2021/03/13-22:53:28.794736 7f7af842da80 Options.recycle_log_file_num: 0
+2021/03/13-22:53:28.794737 7f7af842da80 Options.allow_fallocate: 1
+2021/03/13-22:53:28.794737 7f7af842da80 Options.allow_mmap_reads: 0
+2021/03/13-22:53:28.794738 7f7af842da80 Options.allow_mmap_writes: 0
+2021/03/13-22:53:28.794739 7f7af842da80 Options.use_direct_reads: 0
+2021/03/13-22:53:28.794739 7f7af842da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:53:28.794740 7f7af842da80 Options.create_missing_column_families: 0
+2021/03/13-22:53:28.794740 7f7af842da80 Options.db_log_dir:
+2021/03/13-22:53:28.794741 7f7af842da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:53:28.794741 7f7af842da80 Options.table_cache_numshardbits: 6
+2021/03/13-22:53:28.794742 7f7af842da80 Options.max_subcompactions: 1
+2021/03/13-22:53:28.794742 7f7af842da80 Options.max_background_flushes: -1
+2021/03/13-22:53:28.794743 7f7af842da80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:53:28.794744 7f7af842da80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:53:28.794744 7f7af842da80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:53:28.794745 7f7af842da80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:53:28.794745 7f7af842da80 Options.advise_random_on_open: 1
+2021/03/13-22:53:28.794746 7f7af842da80 Options.db_write_buffer_size: 0
+2021/03/13-22:53:28.794747 7f7af842da80 Options.write_buffer_manager: 0x11eab90
+2021/03/13-22:53:28.794747 7f7af842da80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:53:28.794748 7f7af842da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:53:28.794748 7f7af842da80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:53:28.794749 7f7af842da80 Options.use_adaptive_mutex: 0
+2021/03/13-22:53:28.794749 7f7af842da80 Options.rate_limiter: (nil)
+2021/03/13-22:53:28.794751 7f7af842da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:53:28.794758 7f7af842da80 Options.wal_recovery_mode: 2
+2021/03/13-22:53:28.794759 7f7af842da80 Options.enable_thread_tracking: 0
+2021/03/13-22:53:28.794759 7f7af842da80 Options.enable_pipelined_write: 0
+2021/03/13-22:53:28.794760 7f7af842da80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:53:28.794760 7f7af842da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:53:28.794761 7f7af842da80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:53:28.794762 7f7af842da80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:53:28.794762 7f7af842da80 Options.row_cache: None
+2021/03/13-22:53:28.794763 7f7af842da80 Options.wal_filter: None
+2021/03/13-22:53:28.794763 7f7af842da80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:53:28.794764 7f7af842da80 Options.allow_ingest_behind: 0
+2021/03/13-22:53:28.794764 7f7af842da80 Options.preserve_deletes: 0
+2021/03/13-22:53:28.794765 7f7af842da80 Options.two_write_queues: 0
+2021/03/13-22:53:28.794765 7f7af842da80 Options.manual_wal_flush: 0
+2021/03/13-22:53:28.794767 7f7af842da80 Options.max_background_jobs: 16
+2021/03/13-22:53:28.794767 7f7af842da80 Options.max_background_compactions: -1
+2021/03/13-22:53:28.794768 7f7af842da80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:53:28.794768 7f7af842da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:53:28.794769 7f7af842da80 Options.delayed_write_rate : 16777216
+2021/03/13-22:53:28.794770 7f7af842da80 Options.max_total_wal_size: 0
+2021/03/13-22:53:28.794770 7f7af842da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:53:28.794771 7f7af842da80 Options.stats_dump_period_sec: 600
+2021/03/13-22:53:28.794771 7f7af842da80 Options.max_open_files: -1
+2021/03/13-22:53:28.794772 7f7af842da80 Options.bytes_per_sync: 0
+2021/03/13-22:53:28.794772 7f7af842da80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:53:28.794773 7f7af842da80 Options.compaction_readahead_size: 0
+2021/03/13-22:53:28.794774 7f7af842da80 Compression algorithms supported:
+2021/03/13-22:53:28.794774 7f7af842da80 Snappy supported: 1
+2021/03/13-22:53:28.794775 7f7af842da80 Zlib supported: 1
+2021/03/13-22:53:28.794775 7f7af842da80 Bzip supported: 1
+2021/03/13-22:53:28.794776 7f7af842da80 LZ4 supported: 1
+2021/03/13-22:53:28.794776 7f7af842da80 ZSTDNotFinal supported: 1
+2021/03/13-22:53:28.794780 7f7af842da80 ZSTD supported: 1
+2021/03/13-22:53:28.794783 7f7af842da80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:53:28.794785 7f7af842da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:53:28.794877 7f7af842da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:53:28.794933 7f7af842da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:53:28.794935 7f7af842da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:53:28.794936 7f7af842da80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:53:28.794936 7f7af842da80 Options.compaction_filter: None
+2021/03/13-22:53:28.794937 7f7af842da80 Options.compaction_filter_factory: None
+2021/03/13-22:53:28.794938 7f7af842da80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:53:28.794938 7f7af842da80 Options.table_factory: BlockBasedTable
+2021/03/13-22:53:28.794952 7f7af842da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x11fa520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x11dfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:53:28.794953 7f7af842da80 Options.write_buffer_size: 134217728
+2021/03/13-22:53:28.794953 7f7af842da80 Options.max_write_buffer_number: 6
+2021/03/13-22:53:28.794954 7f7af842da80 Options.compression[0]: NoCompression
+2021/03/13-22:53:28.794955 7f7af842da80 Options.compression[1]: NoCompression
+2021/03/13-22:53:28.794956 7f7af842da80 Options.compression[2]: Snappy
+2021/03/13-22:53:28.794956 7f7af842da80 Options.compression[3]: Snappy
+2021/03/13-22:53:28.794957 7f7af842da80 Options.compression[4]: Snappy
+2021/03/13-22:53:28.794957 7f7af842da80 Options.compression[5]: Snappy
+2021/03/13-22:53:28.794958 7f7af842da80 Options.compression[6]: Snappy
+2021/03/13-22:53:28.794959 7f7af842da80 Options.bottommost_compression: Disabled
+2021/03/13-22:53:28.794959 7f7af842da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:53:28.794960 7f7af842da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:53:28.794961 7f7af842da80 Options.num_levels: 7
+2021/03/13-22:53:28.794961 7f7af842da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:53:28.794962 7f7af842da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:53:28.794962 7f7af842da80 Options.compression_opts.window_bits: -14
+2021/03/13-22:53:28.794963 7f7af842da80 Options.compression_opts.level: -1
+2021/03/13-22:53:28.794963 7f7af842da80 Options.compression_opts.strategy: 0
+2021/03/13-22:53:28.794964 7f7af842da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:53:28.794965 7f7af842da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:53:28.794965 7f7af842da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:53:28.794966 7f7af842da80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:53:28.794966 7f7af842da80 Options.target_file_size_base: 67108864
+2021/03/13-22:53:28.794967 7f7af842da80 Options.target_file_size_multiplier: 1
+2021/03/13-22:53:28.794967 7f7af842da80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:53:28.794968 7f7af842da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:53:28.794969 7f7af842da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:53:28.794970 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:53:28.794978 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:53:28.794978 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:53:28.794979 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:53:28.794980 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:53:28.794980 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:53:28.794981 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:53:28.794981 7f7af842da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:53:28.794982 7f7af842da80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:53:28.794982 7f7af842da80 Options.arena_block_size: 16777216
+2021/03/13-22:53:28.794983 7f7af842da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:53:28.794984 7f7af842da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:53:28.794984 7f7af842da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:53:28.794985 7f7af842da80 Options.disable_auto_compactions: 0
+2021/03/13-22:53:28.794986 7f7af842da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:53:28.794987 7f7af842da80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:53:28.794988 7f7af842da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:53:28.794988 7f7af842da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:53:28.794989 7f7af842da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:53:28.794989 7f7af842da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:53:28.794990 7f7af842da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:53:28.794991 7f7af842da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:53:28.794992 7f7af842da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:53:28.794992 7f7af842da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:53:28.794993 7f7af842da80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:53:28.794993 7f7af842da80 Options.table_properties_collectors:
+2021/03/13-22:53:28.794994 7f7af842da80 Options.inplace_update_support: 0
+2021/03/13-22:53:28.794994 7f7af842da80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:53:28.794995 7f7af842da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:53:28.794996 7f7af842da80 Options.memtable_huge_page_size: 0
+2021/03/13-22:53:28.794996 7f7af842da80 Options.bloom_locality: 0
+2021/03/13-22:53:28.794997 7f7af842da80 Options.max_successive_merges: 0
+2021/03/13-22:53:28.794998 7f7af842da80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:53:28.794998 7f7af842da80 Options.paranoid_file_checks: 0
+2021/03/13-22:53:28.794999 7f7af842da80 Options.force_consistency_checks: 0
+2021/03/13-22:53:28.794999 7f7af842da80 Options.report_bg_io_stats: 0
+2021/03/13-22:53:28.795377 7f7af842da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:53:28.795380 7f7af842da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:53:28.795447 7f7af842da80 EVENT_LOG_v1 {"time_micros": 1615672408795436, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:53:28.795452 7f7af842da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:53:29.499694 7f7af842da80 EVENT_LOG_v1 {"time_micros": 1615672409499690, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672492744542 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672492744542
new file mode 100644
index 0000000..d4b1aac
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672492744542
@@ -0,0 +1,186 @@
+2021/03/13-22:53:29.512783 7f7af842da80 RocksDB version: 5.11.3
+2021/03/13-22:53:29.512840 7f7af842da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:53:29.512842 7f7af842da80 Compile date Mar 13 2021
+2021/03/13-22:53:29.512844 7f7af842da80 DB SUMMARY
+2021/03/13-22:53:29.512882 7f7af842da80 CURRENT file: CURRENT
+2021/03/13-22:53:29.512883 7f7af842da80 IDENTITY file: IDENTITY
+2021/03/13-22:53:29.512886 7f7af842da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:53:29.512888 7f7af842da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:53:29.512888 7f7af842da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:53:29.512891 7f7af842da80 Options.error_if_exists: 0
+2021/03/13-22:53:29.512891 7f7af842da80 Options.create_if_missing: 1
+2021/03/13-22:53:29.512892 7f7af842da80 Options.paranoid_checks: 1
+2021/03/13-22:53:29.512893 7f7af842da80 Options.env: 0x7f7af8de7080
+2021/03/13-22:53:29.512893 7f7af842da80 Options.info_log: 0x1202ca0
+2021/03/13-22:53:29.512894 7f7af842da80 Options.max_file_opening_threads: 16
+2021/03/13-22:53:29.512894 7f7af842da80 Options.statistics: (nil)
+2021/03/13-22:53:29.512895 7f7af842da80 Options.use_fsync: 0
+2021/03/13-22:53:29.512896 7f7af842da80 Options.max_log_file_size: 0
+2021/03/13-22:53:29.512896 7f7af842da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:53:29.512897 7f7af842da80 Options.log_file_time_to_roll: 0
+2021/03/13-22:53:29.512897 7f7af842da80 Options.keep_log_file_num: 1000
+2021/03/13-22:53:29.512898 7f7af842da80 Options.recycle_log_file_num: 0
+2021/03/13-22:53:29.512899 7f7af842da80 Options.allow_fallocate: 1
+2021/03/13-22:53:29.512899 7f7af842da80 Options.allow_mmap_reads: 0
+2021/03/13-22:53:29.512900 7f7af842da80 Options.allow_mmap_writes: 0
+2021/03/13-22:53:29.512900 7f7af842da80 Options.use_direct_reads: 0
+2021/03/13-22:53:29.512901 7f7af842da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:53:29.512901 7f7af842da80 Options.create_missing_column_families: 0
+2021/03/13-22:53:29.512902 7f7af842da80 Options.db_log_dir:
+2021/03/13-22:53:29.512903 7f7af842da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:53:29.512903 7f7af842da80 Options.table_cache_numshardbits: 6
+2021/03/13-22:53:29.512904 7f7af842da80 Options.max_subcompactions: 1
+2021/03/13-22:53:29.512904 7f7af842da80 Options.max_background_flushes: -1
+2021/03/13-22:53:29.512905 7f7af842da80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:53:29.512905 7f7af842da80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:53:29.512906 7f7af842da80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:53:29.512907 7f7af842da80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:53:29.512907 7f7af842da80 Options.advise_random_on_open: 1
+2021/03/13-22:53:29.512908 7f7af842da80 Options.db_write_buffer_size: 0
+2021/03/13-22:53:29.512908 7f7af842da80 Options.write_buffer_manager: 0x11eab90
+2021/03/13-22:53:29.512909 7f7af842da80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:53:29.512909 7f7af842da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:53:29.512910 7f7af842da80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:53:29.512910 7f7af842da80 Options.use_adaptive_mutex: 0
+2021/03/13-22:53:29.512911 7f7af842da80 Options.rate_limiter: (nil)
+2021/03/13-22:53:29.512912 7f7af842da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:53:29.512920 7f7af842da80 Options.wal_recovery_mode: 2
+2021/03/13-22:53:29.512920 7f7af842da80 Options.enable_thread_tracking: 0
+2021/03/13-22:53:29.512921 7f7af842da80 Options.enable_pipelined_write: 0
+2021/03/13-22:53:29.512921 7f7af842da80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:53:29.512922 7f7af842da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:53:29.512922 7f7af842da80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:53:29.512923 7f7af842da80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:53:29.512924 7f7af842da80 Options.row_cache: None
+2021/03/13-22:53:29.512924 7f7af842da80 Options.wal_filter: None
+2021/03/13-22:53:29.512925 7f7af842da80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:53:29.512925 7f7af842da80 Options.allow_ingest_behind: 0
+2021/03/13-22:53:29.512926 7f7af842da80 Options.preserve_deletes: 0
+2021/03/13-22:53:29.512926 7f7af842da80 Options.two_write_queues: 0
+2021/03/13-22:53:29.512927 7f7af842da80 Options.manual_wal_flush: 0
+2021/03/13-22:53:29.512928 7f7af842da80 Options.max_background_jobs: 16
+2021/03/13-22:53:29.512929 7f7af842da80 Options.max_background_compactions: -1
+2021/03/13-22:53:29.512929 7f7af842da80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:53:29.512930 7f7af842da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:53:29.512930 7f7af842da80 Options.delayed_write_rate : 16777216
+2021/03/13-22:53:29.512931 7f7af842da80 Options.max_total_wal_size: 0
+2021/03/13-22:53:29.512931 7f7af842da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:53:29.512932 7f7af842da80 Options.stats_dump_period_sec: 600
+2021/03/13-22:53:29.512933 7f7af842da80 Options.max_open_files: -1
+2021/03/13-22:53:29.512933 7f7af842da80 Options.bytes_per_sync: 0
+2021/03/13-22:53:29.512934 7f7af842da80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:53:29.512934 7f7af842da80 Options.compaction_readahead_size: 0
+2021/03/13-22:53:29.512935 7f7af842da80 Compression algorithms supported:
+2021/03/13-22:53:29.512935 7f7af842da80 Snappy supported: 1
+2021/03/13-22:53:29.512936 7f7af842da80 Zlib supported: 1
+2021/03/13-22:53:29.512937 7f7af842da80 Bzip supported: 1
+2021/03/13-22:53:29.512937 7f7af842da80 LZ4 supported: 1
+2021/03/13-22:53:29.512938 7f7af842da80 ZSTDNotFinal supported: 1
+2021/03/13-22:53:29.512941 7f7af842da80 ZSTD supported: 1
+2021/03/13-22:53:29.512944 7f7af842da80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:53:29.512946 7f7af842da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:53:29.513036 7f7af842da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:53:29.513089 7f7af842da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:53:29.513091 7f7af842da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:53:29.513092 7f7af842da80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:53:29.513093 7f7af842da80 Options.compaction_filter: None
+2021/03/13-22:53:29.513093 7f7af842da80 Options.compaction_filter_factory: None
+2021/03/13-22:53:29.513094 7f7af842da80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:53:29.513094 7f7af842da80 Options.table_factory: BlockBasedTable
+2021/03/13-22:53:29.513108 7f7af842da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x11fa520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x11dfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:53:29.513109 7f7af842da80 Options.write_buffer_size: 134217728
+2021/03/13-22:53:29.513109 7f7af842da80 Options.max_write_buffer_number: 6
+2021/03/13-22:53:29.513110 7f7af842da80 Options.compression[0]: NoCompression
+2021/03/13-22:53:29.513111 7f7af842da80 Options.compression[1]: NoCompression
+2021/03/13-22:53:29.513111 7f7af842da80 Options.compression[2]: Snappy
+2021/03/13-22:53:29.513112 7f7af842da80 Options.compression[3]: Snappy
+2021/03/13-22:53:29.513113 7f7af842da80 Options.compression[4]: Snappy
+2021/03/13-22:53:29.513113 7f7af842da80 Options.compression[5]: Snappy
+2021/03/13-22:53:29.513114 7f7af842da80 Options.compression[6]: Snappy
+2021/03/13-22:53:29.513114 7f7af842da80 Options.bottommost_compression: Disabled
+2021/03/13-22:53:29.513115 7f7af842da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:53:29.513116 7f7af842da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:53:29.513116 7f7af842da80 Options.num_levels: 7
+2021/03/13-22:53:29.513117 7f7af842da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:53:29.513117 7f7af842da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:53:29.513118 7f7af842da80 Options.compression_opts.window_bits: -14
+2021/03/13-22:53:29.513119 7f7af842da80 Options.compression_opts.level: -1
+2021/03/13-22:53:29.513119 7f7af842da80 Options.compression_opts.strategy: 0
+2021/03/13-22:53:29.513120 7f7af842da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:53:29.513120 7f7af842da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:53:29.513121 7f7af842da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:53:29.513121 7f7af842da80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:53:29.513122 7f7af842da80 Options.target_file_size_base: 67108864
+2021/03/13-22:53:29.513122 7f7af842da80 Options.target_file_size_multiplier: 1
+2021/03/13-22:53:29.513123 7f7af842da80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:53:29.513124 7f7af842da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:53:29.513124 7f7af842da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:53:29.513126 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:53:29.513133 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:53:29.513134 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:53:29.513134 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:53:29.513135 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:53:29.513135 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:53:29.513136 7f7af842da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:53:29.513136 7f7af842da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:53:29.513137 7f7af842da80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:53:29.513138 7f7af842da80 Options.arena_block_size: 16777216
+2021/03/13-22:53:29.513138 7f7af842da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:53:29.513139 7f7af842da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:53:29.513139 7f7af842da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:53:29.513140 7f7af842da80 Options.disable_auto_compactions: 0
+2021/03/13-22:53:29.513142 7f7af842da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:53:29.513142 7f7af842da80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:53:29.513143 7f7af842da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:53:29.513143 7f7af842da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:53:29.513144 7f7af842da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:53:29.513144 7f7af842da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:53:29.513145 7f7af842da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:53:29.513146 7f7af842da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:53:29.513147 7f7af842da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:53:29.513147 7f7af842da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:53:29.513148 7f7af842da80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:53:29.513148 7f7af842da80 Options.table_properties_collectors:
+2021/03/13-22:53:29.513149 7f7af842da80 Options.inplace_update_support: 0
+2021/03/13-22:53:29.513149 7f7af842da80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:53:29.513150 7f7af842da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:53:29.513151 7f7af842da80 Options.memtable_huge_page_size: 0
+2021/03/13-22:53:29.513151 7f7af842da80 Options.bloom_locality: 0
+2021/03/13-22:53:29.513152 7f7af842da80 Options.max_successive_merges: 0
+2021/03/13-22:53:29.513153 7f7af842da80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:53:29.513153 7f7af842da80 Options.paranoid_file_checks: 0
+2021/03/13-22:53:29.513154 7f7af842da80 Options.force_consistency_checks: 0
+2021/03/13-22:53:29.513154 7f7af842da80 Options.report_bg_io_stats: 0
+2021/03/13-22:53:29.513522 7f7af842da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:53:29.513525 7f7af842da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:53:29.513591 7f7af842da80 EVENT_LOG_v1 {"time_micros": 1615672409513581, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:53:29.513596 7f7af842da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:53:30.216675 7f7af842da80 EVENT_LOG_v1 {"time_micros": 1615672410216672, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672493465296 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672493465296
new file mode 100644
index 0000000..ff864bb
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672493465296
@@ -0,0 +1,186 @@
+2021/03/13-22:54:52.744866 7fd867a6ba80 RocksDB version: 5.11.3
+2021/03/13-22:54:52.744932 7fd867a6ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:54:52.744934 7fd867a6ba80 Compile date Mar 13 2021
+2021/03/13-22:54:52.744939 7fd867a6ba80 DB SUMMARY
+2021/03/13-22:54:52.744981 7fd867a6ba80 CURRENT file: CURRENT
+2021/03/13-22:54:52.744982 7fd867a6ba80 IDENTITY file: IDENTITY
+2021/03/13-22:54:52.744987 7fd867a6ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:54:52.744988 7fd867a6ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:54:52.744989 7fd867a6ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:54:52.744992 7fd867a6ba80 Options.error_if_exists: 0
+2021/03/13-22:54:52.744993 7fd867a6ba80 Options.create_if_missing: 1
+2021/03/13-22:54:52.744993 7fd867a6ba80 Options.paranoid_checks: 1
+2021/03/13-22:54:52.744994 7fd867a6ba80 Options.env: 0x7fd868425080
+2021/03/13-22:54:52.744995 7fd867a6ba80 Options.info_log: 0x12d8ca0
+2021/03/13-22:54:52.744995 7fd867a6ba80 Options.max_file_opening_threads: 16
+2021/03/13-22:54:52.744996 7fd867a6ba80 Options.statistics: (nil)
+2021/03/13-22:54:52.744997 7fd867a6ba80 Options.use_fsync: 0
+2021/03/13-22:54:52.744997 7fd867a6ba80 Options.max_log_file_size: 0
+2021/03/13-22:54:52.744998 7fd867a6ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:54:52.744999 7fd867a6ba80 Options.log_file_time_to_roll: 0
+2021/03/13-22:54:52.744999 7fd867a6ba80 Options.keep_log_file_num: 1000
+2021/03/13-22:54:52.745000 7fd867a6ba80 Options.recycle_log_file_num: 0
+2021/03/13-22:54:52.745001 7fd867a6ba80 Options.allow_fallocate: 1
+2021/03/13-22:54:52.745001 7fd867a6ba80 Options.allow_mmap_reads: 0
+2021/03/13-22:54:52.745002 7fd867a6ba80 Options.allow_mmap_writes: 0
+2021/03/13-22:54:52.745002 7fd867a6ba80 Options.use_direct_reads: 0
+2021/03/13-22:54:52.745003 7fd867a6ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:54:52.745004 7fd867a6ba80 Options.create_missing_column_families: 0
+2021/03/13-22:54:52.745004 7fd867a6ba80 Options.db_log_dir:
+2021/03/13-22:54:52.745005 7fd867a6ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:54:52.745005 7fd867a6ba80 Options.table_cache_numshardbits: 6
+2021/03/13-22:54:52.745006 7fd867a6ba80 Options.max_subcompactions: 1
+2021/03/13-22:54:52.745007 7fd867a6ba80 Options.max_background_flushes: -1
+2021/03/13-22:54:52.745007 7fd867a6ba80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:54:52.745008 7fd867a6ba80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:54:52.745009 7fd867a6ba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:54:52.745009 7fd867a6ba80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:54:52.745010 7fd867a6ba80 Options.advise_random_on_open: 1
+2021/03/13-22:54:52.745010 7fd867a6ba80 Options.db_write_buffer_size: 0
+2021/03/13-22:54:52.745011 7fd867a6ba80 Options.write_buffer_manager: 0x12c0b90
+2021/03/13-22:54:52.745012 7fd867a6ba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:54:52.745012 7fd867a6ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:54:52.745013 7fd867a6ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:54:52.745014 7fd867a6ba80 Options.use_adaptive_mutex: 0
+2021/03/13-22:54:52.745014 7fd867a6ba80 Options.rate_limiter: (nil)
+2021/03/13-22:54:52.745016 7fd867a6ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:54:52.745024 7fd867a6ba80 Options.wal_recovery_mode: 2
+2021/03/13-22:54:52.745024 7fd867a6ba80 Options.enable_thread_tracking: 0
+2021/03/13-22:54:52.745025 7fd867a6ba80 Options.enable_pipelined_write: 0
+2021/03/13-22:54:52.745026 7fd867a6ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:54:52.745026 7fd867a6ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:54:52.745027 7fd867a6ba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:54:52.745028 7fd867a6ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:54:52.745028 7fd867a6ba80 Options.row_cache: None
+2021/03/13-22:54:52.745029 7fd867a6ba80 Options.wal_filter: None
+2021/03/13-22:54:52.745030 7fd867a6ba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:54:52.745030 7fd867a6ba80 Options.allow_ingest_behind: 0
+2021/03/13-22:54:52.745031 7fd867a6ba80 Options.preserve_deletes: 0
+2021/03/13-22:54:52.745031 7fd867a6ba80 Options.two_write_queues: 0
+2021/03/13-22:54:52.745032 7fd867a6ba80 Options.manual_wal_flush: 0
+2021/03/13-22:54:52.745033 7fd867a6ba80 Options.max_background_jobs: 16
+2021/03/13-22:54:52.745034 7fd867a6ba80 Options.max_background_compactions: -1
+2021/03/13-22:54:52.745035 7fd867a6ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:54:52.745035 7fd867a6ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:54:52.745036 7fd867a6ba80 Options.delayed_write_rate : 16777216
+2021/03/13-22:54:52.745037 7fd867a6ba80 Options.max_total_wal_size: 0
+2021/03/13-22:54:52.745037 7fd867a6ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:54:52.745038 7fd867a6ba80 Options.stats_dump_period_sec: 600
+2021/03/13-22:54:52.745039 7fd867a6ba80 Options.max_open_files: -1
+2021/03/13-22:54:52.745039 7fd867a6ba80 Options.bytes_per_sync: 0
+2021/03/13-22:54:52.745040 7fd867a6ba80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:54:52.745040 7fd867a6ba80 Options.compaction_readahead_size: 0
+2021/03/13-22:54:52.745041 7fd867a6ba80 Compression algorithms supported:
+2021/03/13-22:54:52.745042 7fd867a6ba80 Snappy supported: 1
+2021/03/13-22:54:52.745042 7fd867a6ba80 Zlib supported: 1
+2021/03/13-22:54:52.745043 7fd867a6ba80 Bzip supported: 1
+2021/03/13-22:54:52.745043 7fd867a6ba80 LZ4 supported: 1
+2021/03/13-22:54:52.745044 7fd867a6ba80 ZSTDNotFinal supported: 1
+2021/03/13-22:54:52.745048 7fd867a6ba80 ZSTD supported: 1
+2021/03/13-22:54:52.745052 7fd867a6ba80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:54:52.745054 7fd867a6ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:54:52.745160 7fd867a6ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:54:52.745220 7fd867a6ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:54:52.745221 7fd867a6ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:54:52.745222 7fd867a6ba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:54:52.745223 7fd867a6ba80 Options.compaction_filter: None
+2021/03/13-22:54:52.745224 7fd867a6ba80 Options.compaction_filter_factory: None
+2021/03/13-22:54:52.745224 7fd867a6ba80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:54:52.745225 7fd867a6ba80 Options.table_factory: BlockBasedTable
+2021/03/13-22:54:52.745251 7fd867a6ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x12d0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x12b5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:54:52.745252 7fd867a6ba80 Options.write_buffer_size: 134217728
+2021/03/13-22:54:52.745253 7fd867a6ba80 Options.max_write_buffer_number: 6
+2021/03/13-22:54:52.745254 7fd867a6ba80 Options.compression[0]: NoCompression
+2021/03/13-22:54:52.745254 7fd867a6ba80 Options.compression[1]: NoCompression
+2021/03/13-22:54:52.745255 7fd867a6ba80 Options.compression[2]: Snappy
+2021/03/13-22:54:52.745256 7fd867a6ba80 Options.compression[3]: Snappy
+2021/03/13-22:54:52.745256 7fd867a6ba80 Options.compression[4]: Snappy
+2021/03/13-22:54:52.745257 7fd867a6ba80 Options.compression[5]: Snappy
+2021/03/13-22:54:52.745258 7fd867a6ba80 Options.compression[6]: Snappy
+2021/03/13-22:54:52.745258 7fd867a6ba80 Options.bottommost_compression: Disabled
+2021/03/13-22:54:52.745259 7fd867a6ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:54:52.745260 7fd867a6ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:54:52.745261 7fd867a6ba80 Options.num_levels: 7
+2021/03/13-22:54:52.745261 7fd867a6ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:54:52.745262 7fd867a6ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:54:52.745262 7fd867a6ba80 Options.compression_opts.window_bits: -14
+2021/03/13-22:54:52.745263 7fd867a6ba80 Options.compression_opts.level: -1
+2021/03/13-22:54:52.745264 7fd867a6ba80 Options.compression_opts.strategy: 0
+2021/03/13-22:54:52.745264 7fd867a6ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:54:52.745265 7fd867a6ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:54:52.745266 7fd867a6ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:54:52.745266 7fd867a6ba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:54:52.745267 7fd867a6ba80 Options.target_file_size_base: 67108864
+2021/03/13-22:54:52.745268 7fd867a6ba80 Options.target_file_size_multiplier: 1
+2021/03/13-22:54:52.745268 7fd867a6ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:54:52.745269 7fd867a6ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:54:52.745269 7fd867a6ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:54:52.745271 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:54:52.745281 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:54:52.745282 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:54:52.745282 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:54:52.745283 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:54:52.745283 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:54:52.745284 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:54:52.745285 7fd867a6ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:54:52.745285 7fd867a6ba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:54:52.745286 7fd867a6ba80 Options.arena_block_size: 16777216
+2021/03/13-22:54:52.745287 7fd867a6ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:54:52.745287 7fd867a6ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:54:52.745288 7fd867a6ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:54:52.745289 7fd867a6ba80 Options.disable_auto_compactions: 0
+2021/03/13-22:54:52.745290 7fd867a6ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:54:52.745291 7fd867a6ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:54:52.745292 7fd867a6ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:54:52.745292 7fd867a6ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:54:52.745293 7fd867a6ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:54:52.745294 7fd867a6ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:54:52.745294 7fd867a6ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:54:52.745295 7fd867a6ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:54:52.745296 7fd867a6ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:54:52.745296 7fd867a6ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:54:52.745297 7fd867a6ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:54:52.745298 7fd867a6ba80 Options.table_properties_collectors:
+2021/03/13-22:54:52.745298 7fd867a6ba80 Options.inplace_update_support: 0
+2021/03/13-22:54:52.745299 7fd867a6ba80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:54:52.745300 7fd867a6ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:54:52.745301 7fd867a6ba80 Options.memtable_huge_page_size: 0
+2021/03/13-22:54:52.745301 7fd867a6ba80 Options.bloom_locality: 0
+2021/03/13-22:54:52.745302 7fd867a6ba80 Options.max_successive_merges: 0
+2021/03/13-22:54:52.745303 7fd867a6ba80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:54:52.745303 7fd867a6ba80 Options.paranoid_file_checks: 0
+2021/03/13-22:54:52.745304 7fd867a6ba80 Options.force_consistency_checks: 0
+2021/03/13-22:54:52.745304 7fd867a6ba80 Options.report_bg_io_stats: 0
+2021/03/13-22:54:52.745721 7fd867a6ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:54:52.745724 7fd867a6ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:54:52.745798 7fd867a6ba80 EVENT_LOG_v1 {"time_micros": 1615672492745787, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:54:52.745804 7fd867a6ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:54:53.452663 7fd867a6ba80 EVENT_LOG_v1 {"time_micros": 1615672493452659, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672494177079 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672494177079
new file mode 100644
index 0000000..ce52785
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672494177079
@@ -0,0 +1,186 @@
+2021/03/13-22:54:53.465570 7fd867a6ba80 RocksDB version: 5.11.3
+2021/03/13-22:54:53.465625 7fd867a6ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:54:53.465627 7fd867a6ba80 Compile date Mar 13 2021
+2021/03/13-22:54:53.465631 7fd867a6ba80 DB SUMMARY
+2021/03/13-22:54:53.465670 7fd867a6ba80 CURRENT file: CURRENT
+2021/03/13-22:54:53.465670 7fd867a6ba80 IDENTITY file: IDENTITY
+2021/03/13-22:54:53.465674 7fd867a6ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:54:53.465676 7fd867a6ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:54:53.465676 7fd867a6ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:54:53.465679 7fd867a6ba80 Options.error_if_exists: 0
+2021/03/13-22:54:53.465680 7fd867a6ba80 Options.create_if_missing: 1
+2021/03/13-22:54:53.465680 7fd867a6ba80 Options.paranoid_checks: 1
+2021/03/13-22:54:53.465681 7fd867a6ba80 Options.env: 0x7fd868425080
+2021/03/13-22:54:53.465681 7fd867a6ba80 Options.info_log: 0x12d8ca0
+2021/03/13-22:54:53.465682 7fd867a6ba80 Options.max_file_opening_threads: 16
+2021/03/13-22:54:53.465683 7fd867a6ba80 Options.statistics: (nil)
+2021/03/13-22:54:53.465683 7fd867a6ba80 Options.use_fsync: 0
+2021/03/13-22:54:53.465684 7fd867a6ba80 Options.max_log_file_size: 0
+2021/03/13-22:54:53.465684 7fd867a6ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:54:53.465685 7fd867a6ba80 Options.log_file_time_to_roll: 0
+2021/03/13-22:54:53.465686 7fd867a6ba80 Options.keep_log_file_num: 1000
+2021/03/13-22:54:53.465686 7fd867a6ba80 Options.recycle_log_file_num: 0
+2021/03/13-22:54:53.465687 7fd867a6ba80 Options.allow_fallocate: 1
+2021/03/13-22:54:53.465687 7fd867a6ba80 Options.allow_mmap_reads: 0
+2021/03/13-22:54:53.465688 7fd867a6ba80 Options.allow_mmap_writes: 0
+2021/03/13-22:54:53.465688 7fd867a6ba80 Options.use_direct_reads: 0
+2021/03/13-22:54:53.465689 7fd867a6ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:54:53.465689 7fd867a6ba80 Options.create_missing_column_families: 0
+2021/03/13-22:54:53.465690 7fd867a6ba80 Options.db_log_dir:
+2021/03/13-22:54:53.465691 7fd867a6ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:54:53.465691 7fd867a6ba80 Options.table_cache_numshardbits: 6
+2021/03/13-22:54:53.465692 7fd867a6ba80 Options.max_subcompactions: 1
+2021/03/13-22:54:53.465692 7fd867a6ba80 Options.max_background_flushes: -1
+2021/03/13-22:54:53.465693 7fd867a6ba80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:54:53.465693 7fd867a6ba80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:54:53.465694 7fd867a6ba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:54:53.465695 7fd867a6ba80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:54:53.465695 7fd867a6ba80 Options.advise_random_on_open: 1
+2021/03/13-22:54:53.465696 7fd867a6ba80 Options.db_write_buffer_size: 0
+2021/03/13-22:54:53.465696 7fd867a6ba80 Options.write_buffer_manager: 0x12c0b90
+2021/03/13-22:54:53.465697 7fd867a6ba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:54:53.465697 7fd867a6ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:54:53.465698 7fd867a6ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:54:53.465698 7fd867a6ba80 Options.use_adaptive_mutex: 0
+2021/03/13-22:54:53.465699 7fd867a6ba80 Options.rate_limiter: (nil)
+2021/03/13-22:54:53.465700 7fd867a6ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:54:53.465708 7fd867a6ba80 Options.wal_recovery_mode: 2
+2021/03/13-22:54:53.465709 7fd867a6ba80 Options.enable_thread_tracking: 0
+2021/03/13-22:54:53.465709 7fd867a6ba80 Options.enable_pipelined_write: 0
+2021/03/13-22:54:53.465710 7fd867a6ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:54:53.465710 7fd867a6ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:54:53.465711 7fd867a6ba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:54:53.465711 7fd867a6ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:54:53.465712 7fd867a6ba80 Options.row_cache: None
+2021/03/13-22:54:53.465712 7fd867a6ba80 Options.wal_filter: None
+2021/03/13-22:54:53.465713 7fd867a6ba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:54:53.465714 7fd867a6ba80 Options.allow_ingest_behind: 0
+2021/03/13-22:54:53.465714 7fd867a6ba80 Options.preserve_deletes: 0
+2021/03/13-22:54:53.465715 7fd867a6ba80 Options.two_write_queues: 0
+2021/03/13-22:54:53.465715 7fd867a6ba80 Options.manual_wal_flush: 0
+2021/03/13-22:54:53.465716 7fd867a6ba80 Options.max_background_jobs: 16
+2021/03/13-22:54:53.465717 7fd867a6ba80 Options.max_background_compactions: -1
+2021/03/13-22:54:53.465717 7fd867a6ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:54:53.465718 7fd867a6ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:54:53.465718 7fd867a6ba80 Options.delayed_write_rate : 16777216
+2021/03/13-22:54:53.465719 7fd867a6ba80 Options.max_total_wal_size: 0
+2021/03/13-22:54:53.465720 7fd867a6ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:54:53.465720 7fd867a6ba80 Options.stats_dump_period_sec: 600
+2021/03/13-22:54:53.465721 7fd867a6ba80 Options.max_open_files: -1
+2021/03/13-22:54:53.465721 7fd867a6ba80 Options.bytes_per_sync: 0
+2021/03/13-22:54:53.465722 7fd867a6ba80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:54:53.465722 7fd867a6ba80 Options.compaction_readahead_size: 0
+2021/03/13-22:54:53.465723 7fd867a6ba80 Compression algorithms supported:
+2021/03/13-22:54:53.465724 7fd867a6ba80 Snappy supported: 1
+2021/03/13-22:54:53.465724 7fd867a6ba80 Zlib supported: 1
+2021/03/13-22:54:53.465725 7fd867a6ba80 Bzip supported: 1
+2021/03/13-22:54:53.465725 7fd867a6ba80 LZ4 supported: 1
+2021/03/13-22:54:53.465726 7fd867a6ba80 ZSTDNotFinal supported: 1
+2021/03/13-22:54:53.465729 7fd867a6ba80 ZSTD supported: 1
+2021/03/13-22:54:53.465732 7fd867a6ba80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:54:53.465734 7fd867a6ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:54:53.465824 7fd867a6ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:54:53.465876 7fd867a6ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:54:53.465877 7fd867a6ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:54:53.465878 7fd867a6ba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:54:53.465879 7fd867a6ba80 Options.compaction_filter: None
+2021/03/13-22:54:53.465879 7fd867a6ba80 Options.compaction_filter_factory: None
+2021/03/13-22:54:53.465880 7fd867a6ba80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:54:53.465881 7fd867a6ba80 Options.table_factory: BlockBasedTable
+2021/03/13-22:54:53.465894 7fd867a6ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x12d0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x12b5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:54:53.465895 7fd867a6ba80 Options.write_buffer_size: 134217728
+2021/03/13-22:54:53.465896 7fd867a6ba80 Options.max_write_buffer_number: 6
+2021/03/13-22:54:53.465896 7fd867a6ba80 Options.compression[0]: NoCompression
+2021/03/13-22:54:53.465897 7fd867a6ba80 Options.compression[1]: NoCompression
+2021/03/13-22:54:53.465898 7fd867a6ba80 Options.compression[2]: Snappy
+2021/03/13-22:54:53.465898 7fd867a6ba80 Options.compression[3]: Snappy
+2021/03/13-22:54:53.465899 7fd867a6ba80 Options.compression[4]: Snappy
+2021/03/13-22:54:53.465899 7fd867a6ba80 Options.compression[5]: Snappy
+2021/03/13-22:54:53.465900 7fd867a6ba80 Options.compression[6]: Snappy
+2021/03/13-22:54:53.465900 7fd867a6ba80 Options.bottommost_compression: Disabled
+2021/03/13-22:54:53.465901 7fd867a6ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:54:53.465902 7fd867a6ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:54:53.465902 7fd867a6ba80 Options.num_levels: 7
+2021/03/13-22:54:53.465903 7fd867a6ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:54:53.465904 7fd867a6ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:54:53.465904 7fd867a6ba80 Options.compression_opts.window_bits: -14
+2021/03/13-22:54:53.465905 7fd867a6ba80 Options.compression_opts.level: -1
+2021/03/13-22:54:53.465905 7fd867a6ba80 Options.compression_opts.strategy: 0
+2021/03/13-22:54:53.465906 7fd867a6ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:54:53.465906 7fd867a6ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:54:53.465907 7fd867a6ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:54:53.465908 7fd867a6ba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:54:53.465908 7fd867a6ba80 Options.target_file_size_base: 67108864
+2021/03/13-22:54:53.465909 7fd867a6ba80 Options.target_file_size_multiplier: 1
+2021/03/13-22:54:53.465909 7fd867a6ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:54:53.465910 7fd867a6ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:54:53.465910 7fd867a6ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:54:53.465912 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:54:53.465919 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:54:53.465920 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:54:53.465921 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:54:53.465921 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:54:53.465922 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:54:53.465922 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:54:53.465923 7fd867a6ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:54:53.465923 7fd867a6ba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:54:53.465924 7fd867a6ba80 Options.arena_block_size: 16777216
+2021/03/13-22:54:53.465925 7fd867a6ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:54:53.465925 7fd867a6ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:54:53.465926 7fd867a6ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:54:53.465926 7fd867a6ba80 Options.disable_auto_compactions: 0
+2021/03/13-22:54:53.465928 7fd867a6ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:54:53.465929 7fd867a6ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:54:53.465929 7fd867a6ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:54:53.465930 7fd867a6ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:54:53.465930 7fd867a6ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:54:53.465931 7fd867a6ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:54:53.465932 7fd867a6ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:54:53.465933 7fd867a6ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:54:53.465933 7fd867a6ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:54:53.465934 7fd867a6ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:54:53.465934 7fd867a6ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:54:53.465935 7fd867a6ba80 Options.table_properties_collectors:
+2021/03/13-22:54:53.465935 7fd867a6ba80 Options.inplace_update_support: 0
+2021/03/13-22:54:53.465936 7fd867a6ba80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:54:53.465937 7fd867a6ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:54:53.465938 7fd867a6ba80 Options.memtable_huge_page_size: 0
+2021/03/13-22:54:53.465938 7fd867a6ba80 Options.bloom_locality: 0
+2021/03/13-22:54:53.465939 7fd867a6ba80 Options.max_successive_merges: 0
+2021/03/13-22:54:53.465939 7fd867a6ba80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:54:53.465940 7fd867a6ba80 Options.paranoid_file_checks: 0
+2021/03/13-22:54:53.465940 7fd867a6ba80 Options.force_consistency_checks: 0
+2021/03/13-22:54:53.465941 7fd867a6ba80 Options.report_bg_io_stats: 0
+2021/03/13-22:54:53.466307 7fd867a6ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:54:53.466310 7fd867a6ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:54:53.466374 7fd867a6ba80 EVENT_LOG_v1 {"time_micros": 1615672493466363, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:54:53.466379 7fd867a6ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:54:54.164527 7fd867a6ba80 EVENT_LOG_v1 {"time_micros": 1615672494164524, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672494880766 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672494880766
new file mode 100644
index 0000000..27a34f8
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672494880766
@@ -0,0 +1,186 @@
+2021/03/13-22:54:54.177375 7fd867a6ba80 RocksDB version: 5.11.3
+2021/03/13-22:54:54.177433 7fd867a6ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:54:54.177435 7fd867a6ba80 Compile date Mar 13 2021
+2021/03/13-22:54:54.177439 7fd867a6ba80 DB SUMMARY
+2021/03/13-22:54:54.177480 7fd867a6ba80 CURRENT file: CURRENT
+2021/03/13-22:54:54.177481 7fd867a6ba80 IDENTITY file: IDENTITY
+2021/03/13-22:54:54.177485 7fd867a6ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:54:54.177486 7fd867a6ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:54:54.177487 7fd867a6ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:54:54.177490 7fd867a6ba80 Options.error_if_exists: 0
+2021/03/13-22:54:54.177490 7fd867a6ba80 Options.create_if_missing: 1
+2021/03/13-22:54:54.177491 7fd867a6ba80 Options.paranoid_checks: 1
+2021/03/13-22:54:54.177492 7fd867a6ba80 Options.env: 0x7fd868425080
+2021/03/13-22:54:54.177492 7fd867a6ba80 Options.info_log: 0x12d8ca0
+2021/03/13-22:54:54.177493 7fd867a6ba80 Options.max_file_opening_threads: 16
+2021/03/13-22:54:54.177494 7fd867a6ba80 Options.statistics: (nil)
+2021/03/13-22:54:54.177494 7fd867a6ba80 Options.use_fsync: 0
+2021/03/13-22:54:54.177495 7fd867a6ba80 Options.max_log_file_size: 0
+2021/03/13-22:54:54.177495 7fd867a6ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:54:54.177496 7fd867a6ba80 Options.log_file_time_to_roll: 0
+2021/03/13-22:54:54.177497 7fd867a6ba80 Options.keep_log_file_num: 1000
+2021/03/13-22:54:54.177497 7fd867a6ba80 Options.recycle_log_file_num: 0
+2021/03/13-22:54:54.177498 7fd867a6ba80 Options.allow_fallocate: 1
+2021/03/13-22:54:54.177498 7fd867a6ba80 Options.allow_mmap_reads: 0
+2021/03/13-22:54:54.177499 7fd867a6ba80 Options.allow_mmap_writes: 0
+2021/03/13-22:54:54.177499 7fd867a6ba80 Options.use_direct_reads: 0
+2021/03/13-22:54:54.177500 7fd867a6ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:54:54.177500 7fd867a6ba80 Options.create_missing_column_families: 0
+2021/03/13-22:54:54.177501 7fd867a6ba80 Options.db_log_dir:
+2021/03/13-22:54:54.177502 7fd867a6ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:54:54.177502 7fd867a6ba80 Options.table_cache_numshardbits: 6
+2021/03/13-22:54:54.177503 7fd867a6ba80 Options.max_subcompactions: 1
+2021/03/13-22:54:54.177503 7fd867a6ba80 Options.max_background_flushes: -1
+2021/03/13-22:54:54.177504 7fd867a6ba80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:54:54.177504 7fd867a6ba80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:54:54.177505 7fd867a6ba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:54:54.177506 7fd867a6ba80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:54:54.177506 7fd867a6ba80 Options.advise_random_on_open: 1
+2021/03/13-22:54:54.177507 7fd867a6ba80 Options.db_write_buffer_size: 0
+2021/03/13-22:54:54.177507 7fd867a6ba80 Options.write_buffer_manager: 0x12c0b90
+2021/03/13-22:54:54.177508 7fd867a6ba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:54:54.177508 7fd867a6ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:54:54.177509 7fd867a6ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:54:54.177509 7fd867a6ba80 Options.use_adaptive_mutex: 0
+2021/03/13-22:54:54.177510 7fd867a6ba80 Options.rate_limiter: (nil)
+2021/03/13-22:54:54.177512 7fd867a6ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:54:54.177519 7fd867a6ba80 Options.wal_recovery_mode: 2
+2021/03/13-22:54:54.177520 7fd867a6ba80 Options.enable_thread_tracking: 0
+2021/03/13-22:54:54.177520 7fd867a6ba80 Options.enable_pipelined_write: 0
+2021/03/13-22:54:54.177521 7fd867a6ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:54:54.177521 7fd867a6ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:54:54.177522 7fd867a6ba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:54:54.177522 7fd867a6ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:54:54.177523 7fd867a6ba80 Options.row_cache: None
+2021/03/13-22:54:54.177523 7fd867a6ba80 Options.wal_filter: None
+2021/03/13-22:54:54.177524 7fd867a6ba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:54:54.177525 7fd867a6ba80 Options.allow_ingest_behind: 0
+2021/03/13-22:54:54.177525 7fd867a6ba80 Options.preserve_deletes: 0
+2021/03/13-22:54:54.177526 7fd867a6ba80 Options.two_write_queues: 0
+2021/03/13-22:54:54.177526 7fd867a6ba80 Options.manual_wal_flush: 0
+2021/03/13-22:54:54.177527 7fd867a6ba80 Options.max_background_jobs: 16
+2021/03/13-22:54:54.177528 7fd867a6ba80 Options.max_background_compactions: -1
+2021/03/13-22:54:54.177529 7fd867a6ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:54:54.177529 7fd867a6ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:54:54.177530 7fd867a6ba80 Options.delayed_write_rate : 16777216
+2021/03/13-22:54:54.177530 7fd867a6ba80 Options.max_total_wal_size: 0
+2021/03/13-22:54:54.177531 7fd867a6ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:54:54.177531 7fd867a6ba80 Options.stats_dump_period_sec: 600
+2021/03/13-22:54:54.177532 7fd867a6ba80 Options.max_open_files: -1
+2021/03/13-22:54:54.177533 7fd867a6ba80 Options.bytes_per_sync: 0
+2021/03/13-22:54:54.177533 7fd867a6ba80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:54:54.177534 7fd867a6ba80 Options.compaction_readahead_size: 0
+2021/03/13-22:54:54.177534 7fd867a6ba80 Compression algorithms supported:
+2021/03/13-22:54:54.177535 7fd867a6ba80 Snappy supported: 1
+2021/03/13-22:54:54.177535 7fd867a6ba80 Zlib supported: 1
+2021/03/13-22:54:54.177536 7fd867a6ba80 Bzip supported: 1
+2021/03/13-22:54:54.177536 7fd867a6ba80 LZ4 supported: 1
+2021/03/13-22:54:54.177537 7fd867a6ba80 ZSTDNotFinal supported: 1
+2021/03/13-22:54:54.177541 7fd867a6ba80 ZSTD supported: 1
+2021/03/13-22:54:54.177544 7fd867a6ba80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:54:54.177545 7fd867a6ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:54:54.177633 7fd867a6ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:54:54.177686 7fd867a6ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:54:54.177688 7fd867a6ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:54:54.177689 7fd867a6ba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:54:54.177690 7fd867a6ba80 Options.compaction_filter: None
+2021/03/13-22:54:54.177690 7fd867a6ba80 Options.compaction_filter_factory: None
+2021/03/13-22:54:54.177691 7fd867a6ba80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:54:54.177692 7fd867a6ba80 Options.table_factory: BlockBasedTable
+2021/03/13-22:54:54.177705 7fd867a6ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x12d0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x12b5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:54:54.177706 7fd867a6ba80 Options.write_buffer_size: 134217728
+2021/03/13-22:54:54.177706 7fd867a6ba80 Options.max_write_buffer_number: 6
+2021/03/13-22:54:54.177707 7fd867a6ba80 Options.compression[0]: NoCompression
+2021/03/13-22:54:54.177708 7fd867a6ba80 Options.compression[1]: NoCompression
+2021/03/13-22:54:54.177708 7fd867a6ba80 Options.compression[2]: Snappy
+2021/03/13-22:54:54.177709 7fd867a6ba80 Options.compression[3]: Snappy
+2021/03/13-22:54:54.177710 7fd867a6ba80 Options.compression[4]: Snappy
+2021/03/13-22:54:54.177710 7fd867a6ba80 Options.compression[5]: Snappy
+2021/03/13-22:54:54.177711 7fd867a6ba80 Options.compression[6]: Snappy
+2021/03/13-22:54:54.177711 7fd867a6ba80 Options.bottommost_compression: Disabled
+2021/03/13-22:54:54.177712 7fd867a6ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:54:54.177713 7fd867a6ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:54:54.177713 7fd867a6ba80 Options.num_levels: 7
+2021/03/13-22:54:54.177714 7fd867a6ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:54:54.177714 7fd867a6ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:54:54.177715 7fd867a6ba80 Options.compression_opts.window_bits: -14
+2021/03/13-22:54:54.177716 7fd867a6ba80 Options.compression_opts.level: -1
+2021/03/13-22:54:54.177716 7fd867a6ba80 Options.compression_opts.strategy: 0
+2021/03/13-22:54:54.177717 7fd867a6ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:54:54.177717 7fd867a6ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:54:54.177718 7fd867a6ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:54:54.177718 7fd867a6ba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:54:54.177719 7fd867a6ba80 Options.target_file_size_base: 67108864
+2021/03/13-22:54:54.177720 7fd867a6ba80 Options.target_file_size_multiplier: 1
+2021/03/13-22:54:54.177720 7fd867a6ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:54:54.177721 7fd867a6ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:54:54.177722 7fd867a6ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:54:54.177723 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:54:54.177731 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:54:54.177731 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:54:54.177732 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:54:54.177733 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:54:54.177733 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:54:54.177734 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:54:54.177734 7fd867a6ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:54:54.177735 7fd867a6ba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:54:54.177735 7fd867a6ba80 Options.arena_block_size: 16777216
+2021/03/13-22:54:54.177736 7fd867a6ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:54:54.177737 7fd867a6ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:54:54.177737 7fd867a6ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:54:54.177738 7fd867a6ba80 Options.disable_auto_compactions: 0
+2021/03/13-22:54:54.177739 7fd867a6ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:54:54.177740 7fd867a6ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:54:54.177741 7fd867a6ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:54:54.177741 7fd867a6ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:54:54.177742 7fd867a6ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:54:54.177742 7fd867a6ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:54:54.177743 7fd867a6ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:54:54.177744 7fd867a6ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:54:54.177744 7fd867a6ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:54:54.177745 7fd867a6ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:54:54.177745 7fd867a6ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:54:54.177746 7fd867a6ba80 Options.table_properties_collectors:
+2021/03/13-22:54:54.177747 7fd867a6ba80 Options.inplace_update_support: 0
+2021/03/13-22:54:54.177747 7fd867a6ba80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:54:54.177748 7fd867a6ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:54:54.177748 7fd867a6ba80 Options.memtable_huge_page_size: 0
+2021/03/13-22:54:54.177749 7fd867a6ba80 Options.bloom_locality: 0
+2021/03/13-22:54:54.177750 7fd867a6ba80 Options.max_successive_merges: 0
+2021/03/13-22:54:54.177750 7fd867a6ba80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:54:54.177751 7fd867a6ba80 Options.paranoid_file_checks: 0
+2021/03/13-22:54:54.177751 7fd867a6ba80 Options.force_consistency_checks: 0
+2021/03/13-22:54:54.177752 7fd867a6ba80 Options.report_bg_io_stats: 0
+2021/03/13-22:54:54.178124 7fd867a6ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:54:54.178126 7fd867a6ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:54:54.178191 7fd867a6ba80 EVENT_LOG_v1 {"time_micros": 1615672494178180, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:54:54.178196 7fd867a6ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:54:54.866695 7fd867a6ba80 EVENT_LOG_v1 {"time_micros": 1615672494866691, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672630747439 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672630747439
new file mode 100644
index 0000000..1ff64a9
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672630747439
@@ -0,0 +1,186 @@
+2021/03/13-22:54:54.881056 7fd867a6ba80 RocksDB version: 5.11.3
+2021/03/13-22:54:54.881113 7fd867a6ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:54:54.881114 7fd867a6ba80 Compile date Mar 13 2021
+2021/03/13-22:54:54.881118 7fd867a6ba80 DB SUMMARY
+2021/03/13-22:54:54.881160 7fd867a6ba80 CURRENT file: CURRENT
+2021/03/13-22:54:54.881161 7fd867a6ba80 IDENTITY file: IDENTITY
+2021/03/13-22:54:54.881165 7fd867a6ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:54:54.881166 7fd867a6ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:54:54.881167 7fd867a6ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:54:54.881170 7fd867a6ba80 Options.error_if_exists: 0
+2021/03/13-22:54:54.881171 7fd867a6ba80 Options.create_if_missing: 1
+2021/03/13-22:54:54.881171 7fd867a6ba80 Options.paranoid_checks: 1
+2021/03/13-22:54:54.881172 7fd867a6ba80 Options.env: 0x7fd868425080
+2021/03/13-22:54:54.881172 7fd867a6ba80 Options.info_log: 0x12d8ca0
+2021/03/13-22:54:54.881173 7fd867a6ba80 Options.max_file_opening_threads: 16
+2021/03/13-22:54:54.881174 7fd867a6ba80 Options.statistics: (nil)
+2021/03/13-22:54:54.881174 7fd867a6ba80 Options.use_fsync: 0
+2021/03/13-22:54:54.881175 7fd867a6ba80 Options.max_log_file_size: 0
+2021/03/13-22:54:54.881175 7fd867a6ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:54:54.881176 7fd867a6ba80 Options.log_file_time_to_roll: 0
+2021/03/13-22:54:54.881176 7fd867a6ba80 Options.keep_log_file_num: 1000
+2021/03/13-22:54:54.881177 7fd867a6ba80 Options.recycle_log_file_num: 0
+2021/03/13-22:54:54.881178 7fd867a6ba80 Options.allow_fallocate: 1
+2021/03/13-22:54:54.881178 7fd867a6ba80 Options.allow_mmap_reads: 0
+2021/03/13-22:54:54.881179 7fd867a6ba80 Options.allow_mmap_writes: 0
+2021/03/13-22:54:54.881179 7fd867a6ba80 Options.use_direct_reads: 0
+2021/03/13-22:54:54.881180 7fd867a6ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:54:54.881180 7fd867a6ba80 Options.create_missing_column_families: 0
+2021/03/13-22:54:54.881181 7fd867a6ba80 Options.db_log_dir:
+2021/03/13-22:54:54.881182 7fd867a6ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:54:54.881182 7fd867a6ba80 Options.table_cache_numshardbits: 6
+2021/03/13-22:54:54.881183 7fd867a6ba80 Options.max_subcompactions: 1
+2021/03/13-22:54:54.881183 7fd867a6ba80 Options.max_background_flushes: -1
+2021/03/13-22:54:54.881184 7fd867a6ba80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:54:54.881184 7fd867a6ba80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:54:54.881185 7fd867a6ba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:54:54.881186 7fd867a6ba80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:54:54.881186 7fd867a6ba80 Options.advise_random_on_open: 1
+2021/03/13-22:54:54.881187 7fd867a6ba80 Options.db_write_buffer_size: 0
+2021/03/13-22:54:54.881187 7fd867a6ba80 Options.write_buffer_manager: 0x12c0b90
+2021/03/13-22:54:54.881188 7fd867a6ba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:54:54.881188 7fd867a6ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:54:54.881189 7fd867a6ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:54:54.881189 7fd867a6ba80 Options.use_adaptive_mutex: 0
+2021/03/13-22:54:54.881190 7fd867a6ba80 Options.rate_limiter: (nil)
+2021/03/13-22:54:54.881191 7fd867a6ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:54:54.881199 7fd867a6ba80 Options.wal_recovery_mode: 2
+2021/03/13-22:54:54.881200 7fd867a6ba80 Options.enable_thread_tracking: 0
+2021/03/13-22:54:54.881200 7fd867a6ba80 Options.enable_pipelined_write: 0
+2021/03/13-22:54:54.881201 7fd867a6ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:54:54.881201 7fd867a6ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:54:54.881202 7fd867a6ba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:54:54.881202 7fd867a6ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:54:54.881203 7fd867a6ba80 Options.row_cache: None
+2021/03/13-22:54:54.881203 7fd867a6ba80 Options.wal_filter: None
+2021/03/13-22:54:54.881204 7fd867a6ba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:54:54.881205 7fd867a6ba80 Options.allow_ingest_behind: 0
+2021/03/13-22:54:54.881205 7fd867a6ba80 Options.preserve_deletes: 0
+2021/03/13-22:54:54.881206 7fd867a6ba80 Options.two_write_queues: 0
+2021/03/13-22:54:54.881206 7fd867a6ba80 Options.manual_wal_flush: 0
+2021/03/13-22:54:54.881207 7fd867a6ba80 Options.max_background_jobs: 16
+2021/03/13-22:54:54.881208 7fd867a6ba80 Options.max_background_compactions: -1
+2021/03/13-22:54:54.881209 7fd867a6ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:54:54.881209 7fd867a6ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:54:54.881210 7fd867a6ba80 Options.delayed_write_rate : 16777216
+2021/03/13-22:54:54.881210 7fd867a6ba80 Options.max_total_wal_size: 0
+2021/03/13-22:54:54.881211 7fd867a6ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:54:54.881211 7fd867a6ba80 Options.stats_dump_period_sec: 600
+2021/03/13-22:54:54.881212 7fd867a6ba80 Options.max_open_files: -1
+2021/03/13-22:54:54.881212 7fd867a6ba80 Options.bytes_per_sync: 0
+2021/03/13-22:54:54.881213 7fd867a6ba80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:54:54.881214 7fd867a6ba80 Options.compaction_readahead_size: 0
+2021/03/13-22:54:54.881214 7fd867a6ba80 Compression algorithms supported:
+2021/03/13-22:54:54.881215 7fd867a6ba80 Snappy supported: 1
+2021/03/13-22:54:54.881215 7fd867a6ba80 Zlib supported: 1
+2021/03/13-22:54:54.881216 7fd867a6ba80 Bzip supported: 1
+2021/03/13-22:54:54.881216 7fd867a6ba80 LZ4 supported: 1
+2021/03/13-22:54:54.881217 7fd867a6ba80 ZSTDNotFinal supported: 1
+2021/03/13-22:54:54.881221 7fd867a6ba80 ZSTD supported: 1
+2021/03/13-22:54:54.881224 7fd867a6ba80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:54:54.881225 7fd867a6ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:54:54.881322 7fd867a6ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:54:54.881376 7fd867a6ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:54:54.881377 7fd867a6ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:54:54.881378 7fd867a6ba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:54:54.881379 7fd867a6ba80 Options.compaction_filter: None
+2021/03/13-22:54:54.881379 7fd867a6ba80 Options.compaction_filter_factory: None
+2021/03/13-22:54:54.881380 7fd867a6ba80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:54:54.881381 7fd867a6ba80 Options.table_factory: BlockBasedTable
+2021/03/13-22:54:54.881394 7fd867a6ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x12d0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x12b5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:54:54.881395 7fd867a6ba80 Options.write_buffer_size: 134217728
+2021/03/13-22:54:54.881395 7fd867a6ba80 Options.max_write_buffer_number: 6
+2021/03/13-22:54:54.881396 7fd867a6ba80 Options.compression[0]: NoCompression
+2021/03/13-22:54:54.881397 7fd867a6ba80 Options.compression[1]: NoCompression
+2021/03/13-22:54:54.881397 7fd867a6ba80 Options.compression[2]: Snappy
+2021/03/13-22:54:54.881398 7fd867a6ba80 Options.compression[3]: Snappy
+2021/03/13-22:54:54.881399 7fd867a6ba80 Options.compression[4]: Snappy
+2021/03/13-22:54:54.881399 7fd867a6ba80 Options.compression[5]: Snappy
+2021/03/13-22:54:54.881400 7fd867a6ba80 Options.compression[6]: Snappy
+2021/03/13-22:54:54.881400 7fd867a6ba80 Options.bottommost_compression: Disabled
+2021/03/13-22:54:54.881401 7fd867a6ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:54:54.881402 7fd867a6ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:54:54.881402 7fd867a6ba80 Options.num_levels: 7
+2021/03/13-22:54:54.881403 7fd867a6ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:54:54.881403 7fd867a6ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:54:54.881404 7fd867a6ba80 Options.compression_opts.window_bits: -14
+2021/03/13-22:54:54.881405 7fd867a6ba80 Options.compression_opts.level: -1
+2021/03/13-22:54:54.881405 7fd867a6ba80 Options.compression_opts.strategy: 0
+2021/03/13-22:54:54.881406 7fd867a6ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:54:54.881406 7fd867a6ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:54:54.881407 7fd867a6ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:54:54.881407 7fd867a6ba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:54:54.881408 7fd867a6ba80 Options.target_file_size_base: 67108864
+2021/03/13-22:54:54.881409 7fd867a6ba80 Options.target_file_size_multiplier: 1
+2021/03/13-22:54:54.881409 7fd867a6ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:54:54.881410 7fd867a6ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:54:54.881410 7fd867a6ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:54:54.881412 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:54:54.881421 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:54:54.881421 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:54:54.881422 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:54:54.881422 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:54:54.881423 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:54:54.881424 7fd867a6ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:54:54.881424 7fd867a6ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:54:54.881425 7fd867a6ba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:54:54.881425 7fd867a6ba80 Options.arena_block_size: 16777216
+2021/03/13-22:54:54.881426 7fd867a6ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:54:54.881426 7fd867a6ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:54:54.881427 7fd867a6ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:54:54.881428 7fd867a6ba80 Options.disable_auto_compactions: 0
+2021/03/13-22:54:54.881429 7fd867a6ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:54:54.881430 7fd867a6ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:54:54.881430 7fd867a6ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:54:54.881431 7fd867a6ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:54:54.881431 7fd867a6ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:54:54.881432 7fd867a6ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:54:54.881433 7fd867a6ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:54:54.881434 7fd867a6ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:54:54.881434 7fd867a6ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:54:54.881435 7fd867a6ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:54:54.881435 7fd867a6ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:54:54.881436 7fd867a6ba80 Options.table_properties_collectors:
+2021/03/13-22:54:54.881436 7fd867a6ba80 Options.inplace_update_support: 0
+2021/03/13-22:54:54.881437 7fd867a6ba80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:54:54.881437 7fd867a6ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:54:54.881438 7fd867a6ba80 Options.memtable_huge_page_size: 0
+2021/03/13-22:54:54.881439 7fd867a6ba80 Options.bloom_locality: 0
+2021/03/13-22:54:54.881439 7fd867a6ba80 Options.max_successive_merges: 0
+2021/03/13-22:54:54.881440 7fd867a6ba80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:54:54.881441 7fd867a6ba80 Options.paranoid_file_checks: 0
+2021/03/13-22:54:54.881441 7fd867a6ba80 Options.force_consistency_checks: 0
+2021/03/13-22:54:54.881442 7fd867a6ba80 Options.report_bg_io_stats: 0
+2021/03/13-22:54:54.881818 7fd867a6ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:54:54.881821 7fd867a6ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:54:54.881886 7fd867a6ba80 EVENT_LOG_v1 {"time_micros": 1615672494881876, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:54:54.881892 7fd867a6ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:54:55.578028 7fd867a6ba80 EVENT_LOG_v1 {"time_micros": 1615672495578024, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672631448397 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672631448397
new file mode 100644
index 0000000..d06ea34
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672631448397
@@ -0,0 +1,186 @@
+2021/03/13-22:57:10.747775 7f9ef21e8a80 RocksDB version: 5.11.3
+2021/03/13-22:57:10.747838 7f9ef21e8a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:57:10.747840 7f9ef21e8a80 Compile date Mar 13 2021
+2021/03/13-22:57:10.747845 7f9ef21e8a80 DB SUMMARY
+2021/03/13-22:57:10.747889 7f9ef21e8a80 CURRENT file: CURRENT
+2021/03/13-22:57:10.747890 7f9ef21e8a80 IDENTITY file: IDENTITY
+2021/03/13-22:57:10.747895 7f9ef21e8a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:57:10.747896 7f9ef21e8a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:57:10.747897 7f9ef21e8a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:57:10.747900 7f9ef21e8a80 Options.error_if_exists: 0
+2021/03/13-22:57:10.747901 7f9ef21e8a80 Options.create_if_missing: 1
+2021/03/13-22:57:10.747901 7f9ef21e8a80 Options.paranoid_checks: 1
+2021/03/13-22:57:10.747902 7f9ef21e8a80 Options.env: 0x7f9ef2ba2080
+2021/03/13-22:57:10.747903 7f9ef21e8a80 Options.info_log: 0x1828ca0
+2021/03/13-22:57:10.747903 7f9ef21e8a80 Options.max_file_opening_threads: 16
+2021/03/13-22:57:10.747904 7f9ef21e8a80 Options.statistics: (nil)
+2021/03/13-22:57:10.747905 7f9ef21e8a80 Options.use_fsync: 0
+2021/03/13-22:57:10.747905 7f9ef21e8a80 Options.max_log_file_size: 0
+2021/03/13-22:57:10.747906 7f9ef21e8a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:57:10.747907 7f9ef21e8a80 Options.log_file_time_to_roll: 0
+2021/03/13-22:57:10.747907 7f9ef21e8a80 Options.keep_log_file_num: 1000
+2021/03/13-22:57:10.747908 7f9ef21e8a80 Options.recycle_log_file_num: 0
+2021/03/13-22:57:10.747909 7f9ef21e8a80 Options.allow_fallocate: 1
+2021/03/13-22:57:10.747909 7f9ef21e8a80 Options.allow_mmap_reads: 0
+2021/03/13-22:57:10.747910 7f9ef21e8a80 Options.allow_mmap_writes: 0
+2021/03/13-22:57:10.747910 7f9ef21e8a80 Options.use_direct_reads: 0
+2021/03/13-22:57:10.747911 7f9ef21e8a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:57:10.747912 7f9ef21e8a80 Options.create_missing_column_families: 0
+2021/03/13-22:57:10.747912 7f9ef21e8a80 Options.db_log_dir:
+2021/03/13-22:57:10.747913 7f9ef21e8a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:57:10.747913 7f9ef21e8a80 Options.table_cache_numshardbits: 6
+2021/03/13-22:57:10.747914 7f9ef21e8a80 Options.max_subcompactions: 1
+2021/03/13-22:57:10.747915 7f9ef21e8a80 Options.max_background_flushes: -1
+2021/03/13-22:57:10.747915 7f9ef21e8a80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:57:10.747916 7f9ef21e8a80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:57:10.747917 7f9ef21e8a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:57:10.747917 7f9ef21e8a80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:57:10.747918 7f9ef21e8a80 Options.advise_random_on_open: 1
+2021/03/13-22:57:10.747919 7f9ef21e8a80 Options.db_write_buffer_size: 0
+2021/03/13-22:57:10.747919 7f9ef21e8a80 Options.write_buffer_manager: 0x1810b90
+2021/03/13-22:57:10.747920 7f9ef21e8a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:57:10.747920 7f9ef21e8a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:57:10.747921 7f9ef21e8a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:57:10.747922 7f9ef21e8a80 Options.use_adaptive_mutex: 0
+2021/03/13-22:57:10.747922 7f9ef21e8a80 Options.rate_limiter: (nil)
+2021/03/13-22:57:10.747924 7f9ef21e8a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:57:10.747934 7f9ef21e8a80 Options.wal_recovery_mode: 2
+2021/03/13-22:57:10.747935 7f9ef21e8a80 Options.enable_thread_tracking: 0
+2021/03/13-22:57:10.747935 7f9ef21e8a80 Options.enable_pipelined_write: 0
+2021/03/13-22:57:10.747936 7f9ef21e8a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:57:10.747936 7f9ef21e8a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:57:10.747937 7f9ef21e8a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:57:10.747938 7f9ef21e8a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:57:10.747938 7f9ef21e8a80 Options.row_cache: None
+2021/03/13-22:57:10.747939 7f9ef21e8a80 Options.wal_filter: None
+2021/03/13-22:57:10.747940 7f9ef21e8a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:57:10.747940 7f9ef21e8a80 Options.allow_ingest_behind: 0
+2021/03/13-22:57:10.747941 7f9ef21e8a80 Options.preserve_deletes: 0
+2021/03/13-22:57:10.747941 7f9ef21e8a80 Options.two_write_queues: 0
+2021/03/13-22:57:10.747942 7f9ef21e8a80 Options.manual_wal_flush: 0
+2021/03/13-22:57:10.747943 7f9ef21e8a80 Options.max_background_jobs: 16
+2021/03/13-22:57:10.747944 7f9ef21e8a80 Options.max_background_compactions: -1
+2021/03/13-22:57:10.747945 7f9ef21e8a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:57:10.747945 7f9ef21e8a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:57:10.747946 7f9ef21e8a80 Options.delayed_write_rate : 16777216
+2021/03/13-22:57:10.747946 7f9ef21e8a80 Options.max_total_wal_size: 0
+2021/03/13-22:57:10.747947 7f9ef21e8a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:57:10.747948 7f9ef21e8a80 Options.stats_dump_period_sec: 600
+2021/03/13-22:57:10.747948 7f9ef21e8a80 Options.max_open_files: -1
+2021/03/13-22:57:10.747949 7f9ef21e8a80 Options.bytes_per_sync: 0
+2021/03/13-22:57:10.747950 7f9ef21e8a80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:57:10.747950 7f9ef21e8a80 Options.compaction_readahead_size: 0
+2021/03/13-22:57:10.747951 7f9ef21e8a80 Compression algorithms supported:
+2021/03/13-22:57:10.747952 7f9ef21e8a80 Snappy supported: 1
+2021/03/13-22:57:10.747952 7f9ef21e8a80 Zlib supported: 1
+2021/03/13-22:57:10.747953 7f9ef21e8a80 Bzip supported: 1
+2021/03/13-22:57:10.747953 7f9ef21e8a80 LZ4 supported: 1
+2021/03/13-22:57:10.747954 7f9ef21e8a80 ZSTDNotFinal supported: 1
+2021/03/13-22:57:10.747959 7f9ef21e8a80 ZSTD supported: 1
+2021/03/13-22:57:10.747962 7f9ef21e8a80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:57:10.747963 7f9ef21e8a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:57:10.748069 7f9ef21e8a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:57:10.748127 7f9ef21e8a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:57:10.748129 7f9ef21e8a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:57:10.748130 7f9ef21e8a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:57:10.748131 7f9ef21e8a80 Options.compaction_filter: None
+2021/03/13-22:57:10.748131 7f9ef21e8a80 Options.compaction_filter_factory: None
+2021/03/13-22:57:10.748132 7f9ef21e8a80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:57:10.748133 7f9ef21e8a80 Options.table_factory: BlockBasedTable
+2021/03/13-22:57:10.748148 7f9ef21e8a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1820520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1805c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:57:10.748149 7f9ef21e8a80 Options.write_buffer_size: 134217728
+2021/03/13-22:57:10.748149 7f9ef21e8a80 Options.max_write_buffer_number: 6
+2021/03/13-22:57:10.748150 7f9ef21e8a80 Options.compression[0]: NoCompression
+2021/03/13-22:57:10.748151 7f9ef21e8a80 Options.compression[1]: NoCompression
+2021/03/13-22:57:10.748151 7f9ef21e8a80 Options.compression[2]: Snappy
+2021/03/13-22:57:10.748152 7f9ef21e8a80 Options.compression[3]: Snappy
+2021/03/13-22:57:10.748153 7f9ef21e8a80 Options.compression[4]: Snappy
+2021/03/13-22:57:10.748153 7f9ef21e8a80 Options.compression[5]: Snappy
+2021/03/13-22:57:10.748154 7f9ef21e8a80 Options.compression[6]: Snappy
+2021/03/13-22:57:10.748155 7f9ef21e8a80 Options.bottommost_compression: Disabled
+2021/03/13-22:57:10.748156 7f9ef21e8a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:57:10.748156 7f9ef21e8a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:57:10.748157 7f9ef21e8a80 Options.num_levels: 7
+2021/03/13-22:57:10.748157 7f9ef21e8a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:57:10.748158 7f9ef21e8a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:57:10.748159 7f9ef21e8a80 Options.compression_opts.window_bits: -14
+2021/03/13-22:57:10.748160 7f9ef21e8a80 Options.compression_opts.level: -1
+2021/03/13-22:57:10.748160 7f9ef21e8a80 Options.compression_opts.strategy: 0
+2021/03/13-22:57:10.748161 7f9ef21e8a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:57:10.748162 7f9ef21e8a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:57:10.748162 7f9ef21e8a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:57:10.748163 7f9ef21e8a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:57:10.748164 7f9ef21e8a80 Options.target_file_size_base: 67108864
+2021/03/13-22:57:10.748164 7f9ef21e8a80 Options.target_file_size_multiplier: 1
+2021/03/13-22:57:10.748165 7f9ef21e8a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:57:10.748165 7f9ef21e8a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:57:10.748166 7f9ef21e8a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:57:10.748168 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:57:10.748176 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:57:10.748177 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:57:10.748178 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:57:10.748179 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:57:10.748179 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:57:10.748180 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:57:10.748180 7f9ef21e8a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:57:10.748181 7f9ef21e8a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:57:10.748182 7f9ef21e8a80 Options.arena_block_size: 16777216
+2021/03/13-22:57:10.748182 7f9ef21e8a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:57:10.748183 7f9ef21e8a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:57:10.748184 7f9ef21e8a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:57:10.748184 7f9ef21e8a80 Options.disable_auto_compactions: 0
+2021/03/13-22:57:10.748186 7f9ef21e8a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:57:10.748187 7f9ef21e8a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:57:10.748188 7f9ef21e8a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:57:10.748188 7f9ef21e8a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:57:10.748189 7f9ef21e8a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:57:10.748190 7f9ef21e8a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:57:10.748190 7f9ef21e8a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:57:10.748191 7f9ef21e8a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:57:10.748192 7f9ef21e8a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:57:10.748193 7f9ef21e8a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:57:10.748193 7f9ef21e8a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:57:10.748194 7f9ef21e8a80 Options.table_properties_collectors:
+2021/03/13-22:57:10.748194 7f9ef21e8a80 Options.inplace_update_support: 0
+2021/03/13-22:57:10.748195 7f9ef21e8a80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:57:10.748196 7f9ef21e8a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:57:10.748197 7f9ef21e8a80 Options.memtable_huge_page_size: 0
+2021/03/13-22:57:10.748197 7f9ef21e8a80 Options.bloom_locality: 0
+2021/03/13-22:57:10.748198 7f9ef21e8a80 Options.max_successive_merges: 0
+2021/03/13-22:57:10.748199 7f9ef21e8a80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:57:10.748199 7f9ef21e8a80 Options.paranoid_file_checks: 0
+2021/03/13-22:57:10.748200 7f9ef21e8a80 Options.force_consistency_checks: 0
+2021/03/13-22:57:10.748201 7f9ef21e8a80 Options.report_bg_io_stats: 0
+2021/03/13-22:57:10.748629 7f9ef21e8a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:57:10.748632 7f9ef21e8a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:57:10.748704 7f9ef21e8a80 EVENT_LOG_v1 {"time_micros": 1615672630748693, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:57:10.748710 7f9ef21e8a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:57:11.436182 7f9ef21e8a80 EVENT_LOG_v1 {"time_micros": 1615672631436179, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672632141537 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672632141537
new file mode 100644
index 0000000..99ebd5b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672632141537
@@ -0,0 +1,186 @@
+2021/03/13-22:57:11.448697 7f9ef21e8a80 RocksDB version: 5.11.3
+2021/03/13-22:57:11.448753 7f9ef21e8a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:57:11.448754 7f9ef21e8a80 Compile date Mar 13 2021
+2021/03/13-22:57:11.448758 7f9ef21e8a80 DB SUMMARY
+2021/03/13-22:57:11.448800 7f9ef21e8a80 CURRENT file: CURRENT
+2021/03/13-22:57:11.448801 7f9ef21e8a80 IDENTITY file: IDENTITY
+2021/03/13-22:57:11.448805 7f9ef21e8a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:57:11.448806 7f9ef21e8a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:57:11.448807 7f9ef21e8a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:57:11.448809 7f9ef21e8a80 Options.error_if_exists: 0
+2021/03/13-22:57:11.448810 7f9ef21e8a80 Options.create_if_missing: 1
+2021/03/13-22:57:11.448811 7f9ef21e8a80 Options.paranoid_checks: 1
+2021/03/13-22:57:11.448811 7f9ef21e8a80 Options.env: 0x7f9ef2ba2080
+2021/03/13-22:57:11.448812 7f9ef21e8a80 Options.info_log: 0x1828ca0
+2021/03/13-22:57:11.448813 7f9ef21e8a80 Options.max_file_opening_threads: 16
+2021/03/13-22:57:11.448813 7f9ef21e8a80 Options.statistics: (nil)
+2021/03/13-22:57:11.448814 7f9ef21e8a80 Options.use_fsync: 0
+2021/03/13-22:57:11.448814 7f9ef21e8a80 Options.max_log_file_size: 0
+2021/03/13-22:57:11.448815 7f9ef21e8a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:57:11.448816 7f9ef21e8a80 Options.log_file_time_to_roll: 0
+2021/03/13-22:57:11.448816 7f9ef21e8a80 Options.keep_log_file_num: 1000
+2021/03/13-22:57:11.448817 7f9ef21e8a80 Options.recycle_log_file_num: 0
+2021/03/13-22:57:11.448817 7f9ef21e8a80 Options.allow_fallocate: 1
+2021/03/13-22:57:11.448818 7f9ef21e8a80 Options.allow_mmap_reads: 0
+2021/03/13-22:57:11.448818 7f9ef21e8a80 Options.allow_mmap_writes: 0
+2021/03/13-22:57:11.448819 7f9ef21e8a80 Options.use_direct_reads: 0
+2021/03/13-22:57:11.448819 7f9ef21e8a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:57:11.448820 7f9ef21e8a80 Options.create_missing_column_families: 0
+2021/03/13-22:57:11.448821 7f9ef21e8a80 Options.db_log_dir:
+2021/03/13-22:57:11.448821 7f9ef21e8a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:57:11.448822 7f9ef21e8a80 Options.table_cache_numshardbits: 6
+2021/03/13-22:57:11.448822 7f9ef21e8a80 Options.max_subcompactions: 1
+2021/03/13-22:57:11.448823 7f9ef21e8a80 Options.max_background_flushes: -1
+2021/03/13-22:57:11.448823 7f9ef21e8a80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:57:11.448824 7f9ef21e8a80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:57:11.448825 7f9ef21e8a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:57:11.448825 7f9ef21e8a80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:57:11.448826 7f9ef21e8a80 Options.advise_random_on_open: 1
+2021/03/13-22:57:11.448826 7f9ef21e8a80 Options.db_write_buffer_size: 0
+2021/03/13-22:57:11.448827 7f9ef21e8a80 Options.write_buffer_manager: 0x1810b90
+2021/03/13-22:57:11.448827 7f9ef21e8a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:57:11.448828 7f9ef21e8a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:57:11.448828 7f9ef21e8a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:57:11.448829 7f9ef21e8a80 Options.use_adaptive_mutex: 0
+2021/03/13-22:57:11.448829 7f9ef21e8a80 Options.rate_limiter: (nil)
+2021/03/13-22:57:11.448831 7f9ef21e8a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:57:11.448838 7f9ef21e8a80 Options.wal_recovery_mode: 2
+2021/03/13-22:57:11.448839 7f9ef21e8a80 Options.enable_thread_tracking: 0
+2021/03/13-22:57:11.448840 7f9ef21e8a80 Options.enable_pipelined_write: 0
+2021/03/13-22:57:11.448840 7f9ef21e8a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:57:11.448841 7f9ef21e8a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:57:11.448841 7f9ef21e8a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:57:11.448842 7f9ef21e8a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:57:11.448843 7f9ef21e8a80 Options.row_cache: None
+2021/03/13-22:57:11.448843 7f9ef21e8a80 Options.wal_filter: None
+2021/03/13-22:57:11.448844 7f9ef21e8a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:57:11.448844 7f9ef21e8a80 Options.allow_ingest_behind: 0
+2021/03/13-22:57:11.448845 7f9ef21e8a80 Options.preserve_deletes: 0
+2021/03/13-22:57:11.448845 7f9ef21e8a80 Options.two_write_queues: 0
+2021/03/13-22:57:11.448846 7f9ef21e8a80 Options.manual_wal_flush: 0
+2021/03/13-22:57:11.448847 7f9ef21e8a80 Options.max_background_jobs: 16
+2021/03/13-22:57:11.448848 7f9ef21e8a80 Options.max_background_compactions: -1
+2021/03/13-22:57:11.448848 7f9ef21e8a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:57:11.448849 7f9ef21e8a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:57:11.448849 7f9ef21e8a80 Options.delayed_write_rate : 16777216
+2021/03/13-22:57:11.448850 7f9ef21e8a80 Options.max_total_wal_size: 0
+2021/03/13-22:57:11.448850 7f9ef21e8a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:57:11.448851 7f9ef21e8a80 Options.stats_dump_period_sec: 600
+2021/03/13-22:57:11.448852 7f9ef21e8a80 Options.max_open_files: -1
+2021/03/13-22:57:11.448852 7f9ef21e8a80 Options.bytes_per_sync: 0
+2021/03/13-22:57:11.448853 7f9ef21e8a80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:57:11.448853 7f9ef21e8a80 Options.compaction_readahead_size: 0
+2021/03/13-22:57:11.448854 7f9ef21e8a80 Compression algorithms supported:
+2021/03/13-22:57:11.448854 7f9ef21e8a80 Snappy supported: 1
+2021/03/13-22:57:11.448855 7f9ef21e8a80 Zlib supported: 1
+2021/03/13-22:57:11.448856 7f9ef21e8a80 Bzip supported: 1
+2021/03/13-22:57:11.448856 7f9ef21e8a80 LZ4 supported: 1
+2021/03/13-22:57:11.448857 7f9ef21e8a80 ZSTDNotFinal supported: 1
+2021/03/13-22:57:11.448860 7f9ef21e8a80 ZSTD supported: 1
+2021/03/13-22:57:11.448863 7f9ef21e8a80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:57:11.448864 7f9ef21e8a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:57:11.448954 7f9ef21e8a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:57:11.449006 7f9ef21e8a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:57:11.449008 7f9ef21e8a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:57:11.449009 7f9ef21e8a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:57:11.449009 7f9ef21e8a80 Options.compaction_filter: None
+2021/03/13-22:57:11.449010 7f9ef21e8a80 Options.compaction_filter_factory: None
+2021/03/13-22:57:11.449010 7f9ef21e8a80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:57:11.449011 7f9ef21e8a80 Options.table_factory: BlockBasedTable
+2021/03/13-22:57:11.449024 7f9ef21e8a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1820520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1805c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:57:11.449025 7f9ef21e8a80 Options.write_buffer_size: 134217728
+2021/03/13-22:57:11.449026 7f9ef21e8a80 Options.max_write_buffer_number: 6
+2021/03/13-22:57:11.449026 7f9ef21e8a80 Options.compression[0]: NoCompression
+2021/03/13-22:57:11.449027 7f9ef21e8a80 Options.compression[1]: NoCompression
+2021/03/13-22:57:11.449028 7f9ef21e8a80 Options.compression[2]: Snappy
+2021/03/13-22:57:11.449028 7f9ef21e8a80 Options.compression[3]: Snappy
+2021/03/13-22:57:11.449029 7f9ef21e8a80 Options.compression[4]: Snappy
+2021/03/13-22:57:11.449029 7f9ef21e8a80 Options.compression[5]: Snappy
+2021/03/13-22:57:11.449030 7f9ef21e8a80 Options.compression[6]: Snappy
+2021/03/13-22:57:11.449031 7f9ef21e8a80 Options.bottommost_compression: Disabled
+2021/03/13-22:57:11.449031 7f9ef21e8a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:57:11.449032 7f9ef21e8a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:57:11.449032 7f9ef21e8a80 Options.num_levels: 7
+2021/03/13-22:57:11.449033 7f9ef21e8a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:57:11.449034 7f9ef21e8a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:57:11.449034 7f9ef21e8a80 Options.compression_opts.window_bits: -14
+2021/03/13-22:57:11.449035 7f9ef21e8a80 Options.compression_opts.level: -1
+2021/03/13-22:57:11.449035 7f9ef21e8a80 Options.compression_opts.strategy: 0
+2021/03/13-22:57:11.449036 7f9ef21e8a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:57:11.449037 7f9ef21e8a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:57:11.449037 7f9ef21e8a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:57:11.449038 7f9ef21e8a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:57:11.449038 7f9ef21e8a80 Options.target_file_size_base: 67108864
+2021/03/13-22:57:11.449039 7f9ef21e8a80 Options.target_file_size_multiplier: 1
+2021/03/13-22:57:11.449039 7f9ef21e8a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:57:11.449040 7f9ef21e8a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:57:11.449041 7f9ef21e8a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:57:11.449042 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:57:11.449049 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:57:11.449050 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:57:11.449051 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:57:11.449051 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:57:11.449052 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:57:11.449052 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:57:11.449053 7f9ef21e8a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:57:11.449053 7f9ef21e8a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:57:11.449054 7f9ef21e8a80 Options.arena_block_size: 16777216
+2021/03/13-22:57:11.449055 7f9ef21e8a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:57:11.449055 7f9ef21e8a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:57:11.449056 7f9ef21e8a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:57:11.449056 7f9ef21e8a80 Options.disable_auto_compactions: 0
+2021/03/13-22:57:11.449058 7f9ef21e8a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:57:11.449059 7f9ef21e8a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:57:11.449059 7f9ef21e8a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:57:11.449060 7f9ef21e8a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:57:11.449060 7f9ef21e8a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:57:11.449061 7f9ef21e8a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:57:11.449062 7f9ef21e8a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:57:11.449063 7f9ef21e8a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:57:11.449063 7f9ef21e8a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:57:11.449064 7f9ef21e8a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:57:11.449064 7f9ef21e8a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:57:11.449065 7f9ef21e8a80 Options.table_properties_collectors:
+2021/03/13-22:57:11.449065 7f9ef21e8a80 Options.inplace_update_support: 0
+2021/03/13-22:57:11.449066 7f9ef21e8a80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:57:11.449066 7f9ef21e8a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:57:11.449067 7f9ef21e8a80 Options.memtable_huge_page_size: 0
+2021/03/13-22:57:11.449068 7f9ef21e8a80 Options.bloom_locality: 0
+2021/03/13-22:57:11.449068 7f9ef21e8a80 Options.max_successive_merges: 0
+2021/03/13-22:57:11.449069 7f9ef21e8a80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:57:11.449069 7f9ef21e8a80 Options.paranoid_file_checks: 0
+2021/03/13-22:57:11.449070 7f9ef21e8a80 Options.force_consistency_checks: 0
+2021/03/13-22:57:11.449070 7f9ef21e8a80 Options.report_bg_io_stats: 0
+2021/03/13-22:57:11.449449 7f9ef21e8a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:57:11.449452 7f9ef21e8a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:57:11.449517 7f9ef21e8a80 EVENT_LOG_v1 {"time_micros": 1615672631449507, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:57:11.449522 7f9ef21e8a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:57:12.129044 7f9ef21e8a80 EVENT_LOG_v1 {"time_micros": 1615672632129040, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672632835387 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672632835387
new file mode 100644
index 0000000..5192775
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672632835387
@@ -0,0 +1,186 @@
+2021/03/13-22:57:12.141843 7f9ef21e8a80 RocksDB version: 5.11.3
+2021/03/13-22:57:12.141901 7f9ef21e8a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:57:12.141903 7f9ef21e8a80 Compile date Mar 13 2021
+2021/03/13-22:57:12.141908 7f9ef21e8a80 DB SUMMARY
+2021/03/13-22:57:12.141949 7f9ef21e8a80 CURRENT file: CURRENT
+2021/03/13-22:57:12.141950 7f9ef21e8a80 IDENTITY file: IDENTITY
+2021/03/13-22:57:12.141955 7f9ef21e8a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:57:12.141956 7f9ef21e8a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:57:12.141957 7f9ef21e8a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:57:12.141959 7f9ef21e8a80 Options.error_if_exists: 0
+2021/03/13-22:57:12.141960 7f9ef21e8a80 Options.create_if_missing: 1
+2021/03/13-22:57:12.141961 7f9ef21e8a80 Options.paranoid_checks: 1
+2021/03/13-22:57:12.141961 7f9ef21e8a80 Options.env: 0x7f9ef2ba2080
+2021/03/13-22:57:12.141962 7f9ef21e8a80 Options.info_log: 0x1828ca0
+2021/03/13-22:57:12.141962 7f9ef21e8a80 Options.max_file_opening_threads: 16
+2021/03/13-22:57:12.141963 7f9ef21e8a80 Options.statistics: (nil)
+2021/03/13-22:57:12.141964 7f9ef21e8a80 Options.use_fsync: 0
+2021/03/13-22:57:12.141964 7f9ef21e8a80 Options.max_log_file_size: 0
+2021/03/13-22:57:12.141965 7f9ef21e8a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:57:12.141965 7f9ef21e8a80 Options.log_file_time_to_roll: 0
+2021/03/13-22:57:12.141966 7f9ef21e8a80 Options.keep_log_file_num: 1000
+2021/03/13-22:57:12.141966 7f9ef21e8a80 Options.recycle_log_file_num: 0
+2021/03/13-22:57:12.141967 7f9ef21e8a80 Options.allow_fallocate: 1
+2021/03/13-22:57:12.141968 7f9ef21e8a80 Options.allow_mmap_reads: 0
+2021/03/13-22:57:12.141968 7f9ef21e8a80 Options.allow_mmap_writes: 0
+2021/03/13-22:57:12.141969 7f9ef21e8a80 Options.use_direct_reads: 0
+2021/03/13-22:57:12.141969 7f9ef21e8a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:57:12.141970 7f9ef21e8a80 Options.create_missing_column_families: 0
+2021/03/13-22:57:12.141970 7f9ef21e8a80 Options.db_log_dir:
+2021/03/13-22:57:12.141971 7f9ef21e8a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:57:12.141971 7f9ef21e8a80 Options.table_cache_numshardbits: 6
+2021/03/13-22:57:12.141972 7f9ef21e8a80 Options.max_subcompactions: 1
+2021/03/13-22:57:12.141973 7f9ef21e8a80 Options.max_background_flushes: -1
+2021/03/13-22:57:12.141973 7f9ef21e8a80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:57:12.141974 7f9ef21e8a80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:57:12.141974 7f9ef21e8a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:57:12.141975 7f9ef21e8a80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:57:12.141975 7f9ef21e8a80 Options.advise_random_on_open: 1
+2021/03/13-22:57:12.141976 7f9ef21e8a80 Options.db_write_buffer_size: 0
+2021/03/13-22:57:12.141976 7f9ef21e8a80 Options.write_buffer_manager: 0x1810b90
+2021/03/13-22:57:12.141977 7f9ef21e8a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:57:12.141978 7f9ef21e8a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:57:12.141978 7f9ef21e8a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:57:12.141979 7f9ef21e8a80 Options.use_adaptive_mutex: 0
+2021/03/13-22:57:12.141979 7f9ef21e8a80 Options.rate_limiter: (nil)
+2021/03/13-22:57:12.141981 7f9ef21e8a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:57:12.141988 7f9ef21e8a80 Options.wal_recovery_mode: 2
+2021/03/13-22:57:12.141989 7f9ef21e8a80 Options.enable_thread_tracking: 0
+2021/03/13-22:57:12.141990 7f9ef21e8a80 Options.enable_pipelined_write: 0
+2021/03/13-22:57:12.141990 7f9ef21e8a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:57:12.141991 7f9ef21e8a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:57:12.141991 7f9ef21e8a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:57:12.141992 7f9ef21e8a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:57:12.141992 7f9ef21e8a80 Options.row_cache: None
+2021/03/13-22:57:12.141993 7f9ef21e8a80 Options.wal_filter: None
+2021/03/13-22:57:12.141994 7f9ef21e8a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:57:12.141994 7f9ef21e8a80 Options.allow_ingest_behind: 0
+2021/03/13-22:57:12.141995 7f9ef21e8a80 Options.preserve_deletes: 0
+2021/03/13-22:57:12.141995 7f9ef21e8a80 Options.two_write_queues: 0
+2021/03/13-22:57:12.141996 7f9ef21e8a80 Options.manual_wal_flush: 0
+2021/03/13-22:57:12.141997 7f9ef21e8a80 Options.max_background_jobs: 16
+2021/03/13-22:57:12.141998 7f9ef21e8a80 Options.max_background_compactions: -1
+2021/03/13-22:57:12.141998 7f9ef21e8a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:57:12.141999 7f9ef21e8a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:57:12.141999 7f9ef21e8a80 Options.delayed_write_rate : 16777216
+2021/03/13-22:57:12.142000 7f9ef21e8a80 Options.max_total_wal_size: 0
+2021/03/13-22:57:12.142000 7f9ef21e8a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:57:12.142001 7f9ef21e8a80 Options.stats_dump_period_sec: 600
+2021/03/13-22:57:12.142002 7f9ef21e8a80 Options.max_open_files: -1
+2021/03/13-22:57:12.142002 7f9ef21e8a80 Options.bytes_per_sync: 0
+2021/03/13-22:57:12.142003 7f9ef21e8a80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:57:12.142003 7f9ef21e8a80 Options.compaction_readahead_size: 0
+2021/03/13-22:57:12.142004 7f9ef21e8a80 Compression algorithms supported:
+2021/03/13-22:57:12.142004 7f9ef21e8a80 Snappy supported: 1
+2021/03/13-22:57:12.142005 7f9ef21e8a80 Zlib supported: 1
+2021/03/13-22:57:12.142006 7f9ef21e8a80 Bzip supported: 1
+2021/03/13-22:57:12.142006 7f9ef21e8a80 LZ4 supported: 1
+2021/03/13-22:57:12.142007 7f9ef21e8a80 ZSTDNotFinal supported: 1
+2021/03/13-22:57:12.142010 7f9ef21e8a80 ZSTD supported: 1
+2021/03/13-22:57:12.142013 7f9ef21e8a80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:57:12.142015 7f9ef21e8a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:57:12.142105 7f9ef21e8a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:57:12.142156 7f9ef21e8a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:57:12.142158 7f9ef21e8a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:57:12.142159 7f9ef21e8a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:57:12.142160 7f9ef21e8a80 Options.compaction_filter: None
+2021/03/13-22:57:12.142160 7f9ef21e8a80 Options.compaction_filter_factory: None
+2021/03/13-22:57:12.142161 7f9ef21e8a80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:57:12.142162 7f9ef21e8a80 Options.table_factory: BlockBasedTable
+2021/03/13-22:57:12.142174 7f9ef21e8a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1820520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1805c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:57:12.142175 7f9ef21e8a80 Options.write_buffer_size: 134217728
+2021/03/13-22:57:12.142176 7f9ef21e8a80 Options.max_write_buffer_number: 6
+2021/03/13-22:57:12.142177 7f9ef21e8a80 Options.compression[0]: NoCompression
+2021/03/13-22:57:12.142177 7f9ef21e8a80 Options.compression[1]: NoCompression
+2021/03/13-22:57:12.142178 7f9ef21e8a80 Options.compression[2]: Snappy
+2021/03/13-22:57:12.142179 7f9ef21e8a80 Options.compression[3]: Snappy
+2021/03/13-22:57:12.142179 7f9ef21e8a80 Options.compression[4]: Snappy
+2021/03/13-22:57:12.142180 7f9ef21e8a80 Options.compression[5]: Snappy
+2021/03/13-22:57:12.142180 7f9ef21e8a80 Options.compression[6]: Snappy
+2021/03/13-22:57:12.142181 7f9ef21e8a80 Options.bottommost_compression: Disabled
+2021/03/13-22:57:12.142182 7f9ef21e8a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:57:12.142182 7f9ef21e8a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:57:12.142183 7f9ef21e8a80 Options.num_levels: 7
+2021/03/13-22:57:12.142183 7f9ef21e8a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:57:12.142184 7f9ef21e8a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:57:12.142184 7f9ef21e8a80 Options.compression_opts.window_bits: -14
+2021/03/13-22:57:12.142185 7f9ef21e8a80 Options.compression_opts.level: -1
+2021/03/13-22:57:12.142186 7f9ef21e8a80 Options.compression_opts.strategy: 0
+2021/03/13-22:57:12.142186 7f9ef21e8a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:57:12.142187 7f9ef21e8a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:57:12.142187 7f9ef21e8a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:57:12.142188 7f9ef21e8a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:57:12.142188 7f9ef21e8a80 Options.target_file_size_base: 67108864
+2021/03/13-22:57:12.142189 7f9ef21e8a80 Options.target_file_size_multiplier: 1
+2021/03/13-22:57:12.142190 7f9ef21e8a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:57:12.142190 7f9ef21e8a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:57:12.142191 7f9ef21e8a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:57:12.142192 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:57:12.142199 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:57:12.142200 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:57:12.142201 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:57:12.142201 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:57:12.142202 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:57:12.142202 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:57:12.142203 7f9ef21e8a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:57:12.142204 7f9ef21e8a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:57:12.142204 7f9ef21e8a80 Options.arena_block_size: 16777216
+2021/03/13-22:57:12.142205 7f9ef21e8a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:57:12.142205 7f9ef21e8a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:57:12.142206 7f9ef21e8a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:57:12.142207 7f9ef21e8a80 Options.disable_auto_compactions: 0
+2021/03/13-22:57:12.142208 7f9ef21e8a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:57:12.142209 7f9ef21e8a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:57:12.142209 7f9ef21e8a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:57:12.142210 7f9ef21e8a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:57:12.142210 7f9ef21e8a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:57:12.142211 7f9ef21e8a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:57:12.142212 7f9ef21e8a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:57:12.142213 7f9ef21e8a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:57:12.142213 7f9ef21e8a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:57:12.142214 7f9ef21e8a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:57:12.142214 7f9ef21e8a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:57:12.142215 7f9ef21e8a80 Options.table_properties_collectors:
+2021/03/13-22:57:12.142215 7f9ef21e8a80 Options.inplace_update_support: 0
+2021/03/13-22:57:12.142216 7f9ef21e8a80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:57:12.142216 7f9ef21e8a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:57:12.142217 7f9ef21e8a80 Options.memtable_huge_page_size: 0
+2021/03/13-22:57:12.142218 7f9ef21e8a80 Options.bloom_locality: 0
+2021/03/13-22:57:12.142218 7f9ef21e8a80 Options.max_successive_merges: 0
+2021/03/13-22:57:12.142219 7f9ef21e8a80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:57:12.142219 7f9ef21e8a80 Options.paranoid_file_checks: 0
+2021/03/13-22:57:12.142220 7f9ef21e8a80 Options.force_consistency_checks: 0
+2021/03/13-22:57:12.142221 7f9ef21e8a80 Options.report_bg_io_stats: 0
+2021/03/13-22:57:12.142593 7f9ef21e8a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:57:12.142596 7f9ef21e8a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:57:12.142662 7f9ef21e8a80 EVENT_LOG_v1 {"time_micros": 1615672632142651, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:57:12.142667 7f9ef21e8a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:57:12.821081 7f9ef21e8a80 EVENT_LOG_v1 {"time_micros": 1615672632821077, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672772075871 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672772075871
new file mode 100644
index 0000000..5b17597
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672772075871
@@ -0,0 +1,186 @@
+2021/03/13-22:57:12.835692 7f9ef21e8a80 RocksDB version: 5.11.3
+2021/03/13-22:57:12.835750 7f9ef21e8a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:57:12.835751 7f9ef21e8a80 Compile date Mar 13 2021
+2021/03/13-22:57:12.835755 7f9ef21e8a80 DB SUMMARY
+2021/03/13-22:57:12.835797 7f9ef21e8a80 CURRENT file: CURRENT
+2021/03/13-22:57:12.835798 7f9ef21e8a80 IDENTITY file: IDENTITY
+2021/03/13-22:57:12.835802 7f9ef21e8a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:57:12.835803 7f9ef21e8a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:57:12.835804 7f9ef21e8a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:57:12.835807 7f9ef21e8a80 Options.error_if_exists: 0
+2021/03/13-22:57:12.835808 7f9ef21e8a80 Options.create_if_missing: 1
+2021/03/13-22:57:12.835808 7f9ef21e8a80 Options.paranoid_checks: 1
+2021/03/13-22:57:12.835809 7f9ef21e8a80 Options.env: 0x7f9ef2ba2080
+2021/03/13-22:57:12.835809 7f9ef21e8a80 Options.info_log: 0x1828ca0
+2021/03/13-22:57:12.835810 7f9ef21e8a80 Options.max_file_opening_threads: 16
+2021/03/13-22:57:12.835811 7f9ef21e8a80 Options.statistics: (nil)
+2021/03/13-22:57:12.835811 7f9ef21e8a80 Options.use_fsync: 0
+2021/03/13-22:57:12.835812 7f9ef21e8a80 Options.max_log_file_size: 0
+2021/03/13-22:57:12.835813 7f9ef21e8a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:57:12.835813 7f9ef21e8a80 Options.log_file_time_to_roll: 0
+2021/03/13-22:57:12.835814 7f9ef21e8a80 Options.keep_log_file_num: 1000
+2021/03/13-22:57:12.835814 7f9ef21e8a80 Options.recycle_log_file_num: 0
+2021/03/13-22:57:12.835815 7f9ef21e8a80 Options.allow_fallocate: 1
+2021/03/13-22:57:12.835816 7f9ef21e8a80 Options.allow_mmap_reads: 0
+2021/03/13-22:57:12.835816 7f9ef21e8a80 Options.allow_mmap_writes: 0
+2021/03/13-22:57:12.835817 7f9ef21e8a80 Options.use_direct_reads: 0
+2021/03/13-22:57:12.835817 7f9ef21e8a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:57:12.835818 7f9ef21e8a80 Options.create_missing_column_families: 0
+2021/03/13-22:57:12.835818 7f9ef21e8a80 Options.db_log_dir:
+2021/03/13-22:57:12.835819 7f9ef21e8a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:57:12.835819 7f9ef21e8a80 Options.table_cache_numshardbits: 6
+2021/03/13-22:57:12.835820 7f9ef21e8a80 Options.max_subcompactions: 1
+2021/03/13-22:57:12.835821 7f9ef21e8a80 Options.max_background_flushes: -1
+2021/03/13-22:57:12.835821 7f9ef21e8a80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:57:12.835822 7f9ef21e8a80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:57:12.835822 7f9ef21e8a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:57:12.835823 7f9ef21e8a80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:57:12.835823 7f9ef21e8a80 Options.advise_random_on_open: 1
+2021/03/13-22:57:12.835824 7f9ef21e8a80 Options.db_write_buffer_size: 0
+2021/03/13-22:57:12.835824 7f9ef21e8a80 Options.write_buffer_manager: 0x1810b90
+2021/03/13-22:57:12.835825 7f9ef21e8a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:57:12.835826 7f9ef21e8a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:57:12.835826 7f9ef21e8a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:57:12.835827 7f9ef21e8a80 Options.use_adaptive_mutex: 0
+2021/03/13-22:57:12.835827 7f9ef21e8a80 Options.rate_limiter: (nil)
+2021/03/13-22:57:12.835829 7f9ef21e8a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:57:12.835836 7f9ef21e8a80 Options.wal_recovery_mode: 2
+2021/03/13-22:57:12.835837 7f9ef21e8a80 Options.enable_thread_tracking: 0
+2021/03/13-22:57:12.835837 7f9ef21e8a80 Options.enable_pipelined_write: 0
+2021/03/13-22:57:12.835838 7f9ef21e8a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:57:12.835838 7f9ef21e8a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:57:12.835839 7f9ef21e8a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:57:12.835839 7f9ef21e8a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:57:12.835840 7f9ef21e8a80 Options.row_cache: None
+2021/03/13-22:57:12.835840 7f9ef21e8a80 Options.wal_filter: None
+2021/03/13-22:57:12.835841 7f9ef21e8a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:57:12.835842 7f9ef21e8a80 Options.allow_ingest_behind: 0
+2021/03/13-22:57:12.835842 7f9ef21e8a80 Options.preserve_deletes: 0
+2021/03/13-22:57:12.835843 7f9ef21e8a80 Options.two_write_queues: 0
+2021/03/13-22:57:12.835843 7f9ef21e8a80 Options.manual_wal_flush: 0
+2021/03/13-22:57:12.835844 7f9ef21e8a80 Options.max_background_jobs: 16
+2021/03/13-22:57:12.835845 7f9ef21e8a80 Options.max_background_compactions: -1
+2021/03/13-22:57:12.835846 7f9ef21e8a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:57:12.835846 7f9ef21e8a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:57:12.835847 7f9ef21e8a80 Options.delayed_write_rate : 16777216
+2021/03/13-22:57:12.835848 7f9ef21e8a80 Options.max_total_wal_size: 0
+2021/03/13-22:57:12.835848 7f9ef21e8a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:57:12.835849 7f9ef21e8a80 Options.stats_dump_period_sec: 600
+2021/03/13-22:57:12.835849 7f9ef21e8a80 Options.max_open_files: -1
+2021/03/13-22:57:12.835850 7f9ef21e8a80 Options.bytes_per_sync: 0
+2021/03/13-22:57:12.835850 7f9ef21e8a80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:57:12.835851 7f9ef21e8a80 Options.compaction_readahead_size: 0
+2021/03/13-22:57:12.835851 7f9ef21e8a80 Compression algorithms supported:
+2021/03/13-22:57:12.835852 7f9ef21e8a80 Snappy supported: 1
+2021/03/13-22:57:12.835853 7f9ef21e8a80 Zlib supported: 1
+2021/03/13-22:57:12.835853 7f9ef21e8a80 Bzip supported: 1
+2021/03/13-22:57:12.835854 7f9ef21e8a80 LZ4 supported: 1
+2021/03/13-22:57:12.835854 7f9ef21e8a80 ZSTDNotFinal supported: 1
+2021/03/13-22:57:12.835858 7f9ef21e8a80 ZSTD supported: 1
+2021/03/13-22:57:12.835861 7f9ef21e8a80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:57:12.835863 7f9ef21e8a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:57:12.835955 7f9ef21e8a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:57:12.836006 7f9ef21e8a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:57:12.836008 7f9ef21e8a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:57:12.836009 7f9ef21e8a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:57:12.836010 7f9ef21e8a80 Options.compaction_filter: None
+2021/03/13-22:57:12.836010 7f9ef21e8a80 Options.compaction_filter_factory: None
+2021/03/13-22:57:12.836011 7f9ef21e8a80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:57:12.836012 7f9ef21e8a80 Options.table_factory: BlockBasedTable
+2021/03/13-22:57:12.836025 7f9ef21e8a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1820520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1805c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:57:12.836025 7f9ef21e8a80 Options.write_buffer_size: 134217728
+2021/03/13-22:57:12.836026 7f9ef21e8a80 Options.max_write_buffer_number: 6
+2021/03/13-22:57:12.836027 7f9ef21e8a80 Options.compression[0]: NoCompression
+2021/03/13-22:57:12.836028 7f9ef21e8a80 Options.compression[1]: NoCompression
+2021/03/13-22:57:12.836028 7f9ef21e8a80 Options.compression[2]: Snappy
+2021/03/13-22:57:12.836029 7f9ef21e8a80 Options.compression[3]: Snappy
+2021/03/13-22:57:12.836029 7f9ef21e8a80 Options.compression[4]: Snappy
+2021/03/13-22:57:12.836030 7f9ef21e8a80 Options.compression[5]: Snappy
+2021/03/13-22:57:12.836030 7f9ef21e8a80 Options.compression[6]: Snappy
+2021/03/13-22:57:12.836031 7f9ef21e8a80 Options.bottommost_compression: Disabled
+2021/03/13-22:57:12.836032 7f9ef21e8a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:57:12.836032 7f9ef21e8a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:57:12.836033 7f9ef21e8a80 Options.num_levels: 7
+2021/03/13-22:57:12.836033 7f9ef21e8a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:57:12.836034 7f9ef21e8a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:57:12.836035 7f9ef21e8a80 Options.compression_opts.window_bits: -14
+2021/03/13-22:57:12.836035 7f9ef21e8a80 Options.compression_opts.level: -1
+2021/03/13-22:57:12.836036 7f9ef21e8a80 Options.compression_opts.strategy: 0
+2021/03/13-22:57:12.836036 7f9ef21e8a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:57:12.836037 7f9ef21e8a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:57:12.836037 7f9ef21e8a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:57:12.836038 7f9ef21e8a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:57:12.836038 7f9ef21e8a80 Options.target_file_size_base: 67108864
+2021/03/13-22:57:12.836039 7f9ef21e8a80 Options.target_file_size_multiplier: 1
+2021/03/13-22:57:12.836040 7f9ef21e8a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:57:12.836040 7f9ef21e8a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:57:12.836041 7f9ef21e8a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:57:12.836042 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:57:12.836050 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:57:12.836050 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:57:12.836051 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:57:12.836052 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:57:12.836052 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:57:12.836053 7f9ef21e8a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:57:12.836053 7f9ef21e8a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:57:12.836054 7f9ef21e8a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:57:12.836054 7f9ef21e8a80 Options.arena_block_size: 16777216
+2021/03/13-22:57:12.836055 7f9ef21e8a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:57:12.836056 7f9ef21e8a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:57:12.836056 7f9ef21e8a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:57:12.836057 7f9ef21e8a80 Options.disable_auto_compactions: 0
+2021/03/13-22:57:12.836058 7f9ef21e8a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:57:12.836059 7f9ef21e8a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:57:12.836059 7f9ef21e8a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:57:12.836060 7f9ef21e8a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:57:12.836061 7f9ef21e8a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:57:12.836061 7f9ef21e8a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:57:12.836062 7f9ef21e8a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:57:12.836063 7f9ef21e8a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:57:12.836063 7f9ef21e8a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:57:12.836064 7f9ef21e8a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:57:12.836064 7f9ef21e8a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:57:12.836065 7f9ef21e8a80 Options.table_properties_collectors:
+2021/03/13-22:57:12.836065 7f9ef21e8a80 Options.inplace_update_support: 0
+2021/03/13-22:57:12.836066 7f9ef21e8a80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:57:12.836067 7f9ef21e8a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:57:12.836067 7f9ef21e8a80 Options.memtable_huge_page_size: 0
+2021/03/13-22:57:12.836068 7f9ef21e8a80 Options.bloom_locality: 0
+2021/03/13-22:57:12.836069 7f9ef21e8a80 Options.max_successive_merges: 0
+2021/03/13-22:57:12.836069 7f9ef21e8a80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:57:12.836070 7f9ef21e8a80 Options.paranoid_file_checks: 0
+2021/03/13-22:57:12.836070 7f9ef21e8a80 Options.force_consistency_checks: 0
+2021/03/13-22:57:12.836071 7f9ef21e8a80 Options.report_bg_io_stats: 0
+2021/03/13-22:57:12.836463 7f9ef21e8a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:57:12.836466 7f9ef21e8a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:57:12.836538 7f9ef21e8a80 EVENT_LOG_v1 {"time_micros": 1615672632836527, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:57:12.836543 7f9ef21e8a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:57:13.506082 7f9ef21e8a80 EVENT_LOG_v1 {"time_micros": 1615672633506079, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672772773169 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672772773169
new file mode 100644
index 0000000..36717b2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672772773169
@@ -0,0 +1,186 @@
+2021/03/13-22:59:32.076189 7f29bed8ea80 RocksDB version: 5.11.3
+2021/03/13-22:59:32.076259 7f29bed8ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:59:32.076261 7f29bed8ea80 Compile date Mar 13 2021
+2021/03/13-22:59:32.076263 7f29bed8ea80 DB SUMMARY
+2021/03/13-22:59:32.076310 7f29bed8ea80 CURRENT file: CURRENT
+2021/03/13-22:59:32.076311 7f29bed8ea80 IDENTITY file: IDENTITY
+2021/03/13-22:59:32.076316 7f29bed8ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:59:32.076317 7f29bed8ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:59:32.076318 7f29bed8ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:59:32.076321 7f29bed8ea80 Options.error_if_exists: 0
+2021/03/13-22:59:32.076322 7f29bed8ea80 Options.create_if_missing: 1
+2021/03/13-22:59:32.076322 7f29bed8ea80 Options.paranoid_checks: 1
+2021/03/13-22:59:32.076323 7f29bed8ea80 Options.env: 0x7f29bf748080
+2021/03/13-22:59:32.076324 7f29bed8ea80 Options.info_log: 0x2082ca0
+2021/03/13-22:59:32.076324 7f29bed8ea80 Options.max_file_opening_threads: 16
+2021/03/13-22:59:32.076325 7f29bed8ea80 Options.statistics: (nil)
+2021/03/13-22:59:32.076326 7f29bed8ea80 Options.use_fsync: 0
+2021/03/13-22:59:32.076326 7f29bed8ea80 Options.max_log_file_size: 0
+2021/03/13-22:59:32.076327 7f29bed8ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:59:32.076328 7f29bed8ea80 Options.log_file_time_to_roll: 0
+2021/03/13-22:59:32.076328 7f29bed8ea80 Options.keep_log_file_num: 1000
+2021/03/13-22:59:32.076329 7f29bed8ea80 Options.recycle_log_file_num: 0
+2021/03/13-22:59:32.076330 7f29bed8ea80 Options.allow_fallocate: 1
+2021/03/13-22:59:32.076330 7f29bed8ea80 Options.allow_mmap_reads: 0
+2021/03/13-22:59:32.076331 7f29bed8ea80 Options.allow_mmap_writes: 0
+2021/03/13-22:59:32.076332 7f29bed8ea80 Options.use_direct_reads: 0
+2021/03/13-22:59:32.076332 7f29bed8ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:59:32.076333 7f29bed8ea80 Options.create_missing_column_families: 0
+2021/03/13-22:59:32.076333 7f29bed8ea80 Options.db_log_dir:
+2021/03/13-22:59:32.076334 7f29bed8ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:59:32.076335 7f29bed8ea80 Options.table_cache_numshardbits: 6
+2021/03/13-22:59:32.076335 7f29bed8ea80 Options.max_subcompactions: 1
+2021/03/13-22:59:32.076336 7f29bed8ea80 Options.max_background_flushes: -1
+2021/03/13-22:59:32.076337 7f29bed8ea80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:59:32.076337 7f29bed8ea80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:59:32.076338 7f29bed8ea80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:59:32.076339 7f29bed8ea80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:59:32.076339 7f29bed8ea80 Options.advise_random_on_open: 1
+2021/03/13-22:59:32.076340 7f29bed8ea80 Options.db_write_buffer_size: 0
+2021/03/13-22:59:32.076341 7f29bed8ea80 Options.write_buffer_manager: 0x206ab90
+2021/03/13-22:59:32.076341 7f29bed8ea80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:59:32.076342 7f29bed8ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:59:32.076343 7f29bed8ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:59:32.076343 7f29bed8ea80 Options.use_adaptive_mutex: 0
+2021/03/13-22:59:32.076344 7f29bed8ea80 Options.rate_limiter: (nil)
+2021/03/13-22:59:32.076345 7f29bed8ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:59:32.076353 7f29bed8ea80 Options.wal_recovery_mode: 2
+2021/03/13-22:59:32.076354 7f29bed8ea80 Options.enable_thread_tracking: 0
+2021/03/13-22:59:32.076355 7f29bed8ea80 Options.enable_pipelined_write: 0
+2021/03/13-22:59:32.076356 7f29bed8ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:59:32.076356 7f29bed8ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:59:32.076357 7f29bed8ea80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:59:32.076357 7f29bed8ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:59:32.076358 7f29bed8ea80 Options.row_cache: None
+2021/03/13-22:59:32.076359 7f29bed8ea80 Options.wal_filter: None
+2021/03/13-22:59:32.076359 7f29bed8ea80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:59:32.076360 7f29bed8ea80 Options.allow_ingest_behind: 0
+2021/03/13-22:59:32.076361 7f29bed8ea80 Options.preserve_deletes: 0
+2021/03/13-22:59:32.076361 7f29bed8ea80 Options.two_write_queues: 0
+2021/03/13-22:59:32.076362 7f29bed8ea80 Options.manual_wal_flush: 0
+2021/03/13-22:59:32.076363 7f29bed8ea80 Options.max_background_jobs: 16
+2021/03/13-22:59:32.076364 7f29bed8ea80 Options.max_background_compactions: -1
+2021/03/13-22:59:32.076365 7f29bed8ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:59:32.076365 7f29bed8ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:59:32.076366 7f29bed8ea80 Options.delayed_write_rate : 16777216
+2021/03/13-22:59:32.076366 7f29bed8ea80 Options.max_total_wal_size: 0
+2021/03/13-22:59:32.076367 7f29bed8ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:59:32.076368 7f29bed8ea80 Options.stats_dump_period_sec: 600
+2021/03/13-22:59:32.076368 7f29bed8ea80 Options.max_open_files: -1
+2021/03/13-22:59:32.076369 7f29bed8ea80 Options.bytes_per_sync: 0
+2021/03/13-22:59:32.076370 7f29bed8ea80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:59:32.076370 7f29bed8ea80 Options.compaction_readahead_size: 0
+2021/03/13-22:59:32.076371 7f29bed8ea80 Compression algorithms supported:
+2021/03/13-22:59:32.076372 7f29bed8ea80 Snappy supported: 1
+2021/03/13-22:59:32.076372 7f29bed8ea80 Zlib supported: 1
+2021/03/13-22:59:32.076373 7f29bed8ea80 Bzip supported: 1
+2021/03/13-22:59:32.076374 7f29bed8ea80 LZ4 supported: 1
+2021/03/13-22:59:32.076374 7f29bed8ea80 ZSTDNotFinal supported: 1
+2021/03/13-22:59:32.076379 7f29bed8ea80 ZSTD supported: 1
+2021/03/13-22:59:32.076383 7f29bed8ea80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:59:32.076384 7f29bed8ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:59:32.076492 7f29bed8ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:59:32.076552 7f29bed8ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:59:32.076554 7f29bed8ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:59:32.076555 7f29bed8ea80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:59:32.076556 7f29bed8ea80 Options.compaction_filter: None
+2021/03/13-22:59:32.076557 7f29bed8ea80 Options.compaction_filter_factory: None
+2021/03/13-22:59:32.076558 7f29bed8ea80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:59:32.076559 7f29bed8ea80 Options.table_factory: BlockBasedTable
+2021/03/13-22:59:32.076573 7f29bed8ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x207a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x205fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:59:32.076574 7f29bed8ea80 Options.write_buffer_size: 134217728
+2021/03/13-22:59:32.076575 7f29bed8ea80 Options.max_write_buffer_number: 6
+2021/03/13-22:59:32.076576 7f29bed8ea80 Options.compression[0]: NoCompression
+2021/03/13-22:59:32.076576 7f29bed8ea80 Options.compression[1]: NoCompression
+2021/03/13-22:59:32.076577 7f29bed8ea80 Options.compression[2]: Snappy
+2021/03/13-22:59:32.076578 7f29bed8ea80 Options.compression[3]: Snappy
+2021/03/13-22:59:32.076578 7f29bed8ea80 Options.compression[4]: Snappy
+2021/03/13-22:59:32.076579 7f29bed8ea80 Options.compression[5]: Snappy
+2021/03/13-22:59:32.076580 7f29bed8ea80 Options.compression[6]: Snappy
+2021/03/13-22:59:32.076580 7f29bed8ea80 Options.bottommost_compression: Disabled
+2021/03/13-22:59:32.076581 7f29bed8ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:59:32.076582 7f29bed8ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:59:32.076583 7f29bed8ea80 Options.num_levels: 7
+2021/03/13-22:59:32.076583 7f29bed8ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:59:32.076584 7f29bed8ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:59:32.076584 7f29bed8ea80 Options.compression_opts.window_bits: -14
+2021/03/13-22:59:32.076585 7f29bed8ea80 Options.compression_opts.level: -1
+2021/03/13-22:59:32.076586 7f29bed8ea80 Options.compression_opts.strategy: 0
+2021/03/13-22:59:32.076586 7f29bed8ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:59:32.076587 7f29bed8ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:59:32.076588 7f29bed8ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:59:32.076588 7f29bed8ea80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:59:32.076589 7f29bed8ea80 Options.target_file_size_base: 67108864
+2021/03/13-22:59:32.076590 7f29bed8ea80 Options.target_file_size_multiplier: 1
+2021/03/13-22:59:32.076590 7f29bed8ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:59:32.076591 7f29bed8ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:59:32.076592 7f29bed8ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:59:32.076593 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:59:32.076602 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:59:32.076603 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:59:32.076603 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:59:32.076604 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:59:32.076605 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:59:32.076605 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:59:32.076606 7f29bed8ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:59:32.076606 7f29bed8ea80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:59:32.076607 7f29bed8ea80 Options.arena_block_size: 16777216
+2021/03/13-22:59:32.076608 7f29bed8ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:59:32.076608 7f29bed8ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:59:32.076609 7f29bed8ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:59:32.076610 7f29bed8ea80 Options.disable_auto_compactions: 0
+2021/03/13-22:59:32.076611 7f29bed8ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:59:32.076612 7f29bed8ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:59:32.076613 7f29bed8ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:59:32.076614 7f29bed8ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:59:32.076614 7f29bed8ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:59:32.076615 7f29bed8ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:59:32.076616 7f29bed8ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:59:32.076617 7f29bed8ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:59:32.076617 7f29bed8ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:59:32.076618 7f29bed8ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:59:32.076618 7f29bed8ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:59:32.076619 7f29bed8ea80 Options.table_properties_collectors:
+2021/03/13-22:59:32.076620 7f29bed8ea80 Options.inplace_update_support: 0
+2021/03/13-22:59:32.076620 7f29bed8ea80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:59:32.076621 7f29bed8ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:59:32.076622 7f29bed8ea80 Options.memtable_huge_page_size: 0
+2021/03/13-22:59:32.076623 7f29bed8ea80 Options.bloom_locality: 0
+2021/03/13-22:59:32.076623 7f29bed8ea80 Options.max_successive_merges: 0
+2021/03/13-22:59:32.076624 7f29bed8ea80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:59:32.076625 7f29bed8ea80 Options.paranoid_file_checks: 0
+2021/03/13-22:59:32.076625 7f29bed8ea80 Options.force_consistency_checks: 0
+2021/03/13-22:59:32.076626 7f29bed8ea80 Options.report_bg_io_stats: 0
+2021/03/13-22:59:32.077046 7f29bed8ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:59:32.077049 7f29bed8ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:59:32.077138 7f29bed8ea80 EVENT_LOG_v1 {"time_micros": 1615672772077125, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:59:32.077146 7f29bed8ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:59:32.760641 7f29bed8ea80 EVENT_LOG_v1 {"time_micros": 1615672772760638, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672773475895 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672773475895
new file mode 100644
index 0000000..292ef75
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672773475895
@@ -0,0 +1,186 @@
+2021/03/13-22:59:32.773467 7f29bed8ea80 RocksDB version: 5.11.3
+2021/03/13-22:59:32.773525 7f29bed8ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:59:32.773527 7f29bed8ea80 Compile date Mar 13 2021
+2021/03/13-22:59:32.773529 7f29bed8ea80 DB SUMMARY
+2021/03/13-22:59:32.773571 7f29bed8ea80 CURRENT file: CURRENT
+2021/03/13-22:59:32.773572 7f29bed8ea80 IDENTITY file: IDENTITY
+2021/03/13-22:59:32.773576 7f29bed8ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:59:32.773578 7f29bed8ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:59:32.773579 7f29bed8ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:59:32.773581 7f29bed8ea80 Options.error_if_exists: 0
+2021/03/13-22:59:32.773582 7f29bed8ea80 Options.create_if_missing: 1
+2021/03/13-22:59:32.773583 7f29bed8ea80 Options.paranoid_checks: 1
+2021/03/13-22:59:32.773583 7f29bed8ea80 Options.env: 0x7f29bf748080
+2021/03/13-22:59:32.773584 7f29bed8ea80 Options.info_log: 0x2082ca0
+2021/03/13-22:59:32.773584 7f29bed8ea80 Options.max_file_opening_threads: 16
+2021/03/13-22:59:32.773585 7f29bed8ea80 Options.statistics: (nil)
+2021/03/13-22:59:32.773586 7f29bed8ea80 Options.use_fsync: 0
+2021/03/13-22:59:32.773586 7f29bed8ea80 Options.max_log_file_size: 0
+2021/03/13-22:59:32.773587 7f29bed8ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:59:32.773587 7f29bed8ea80 Options.log_file_time_to_roll: 0
+2021/03/13-22:59:32.773588 7f29bed8ea80 Options.keep_log_file_num: 1000
+2021/03/13-22:59:32.773589 7f29bed8ea80 Options.recycle_log_file_num: 0
+2021/03/13-22:59:32.773589 7f29bed8ea80 Options.allow_fallocate: 1
+2021/03/13-22:59:32.773590 7f29bed8ea80 Options.allow_mmap_reads: 0
+2021/03/13-22:59:32.773590 7f29bed8ea80 Options.allow_mmap_writes: 0
+2021/03/13-22:59:32.773591 7f29bed8ea80 Options.use_direct_reads: 0
+2021/03/13-22:59:32.773591 7f29bed8ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:59:32.773592 7f29bed8ea80 Options.create_missing_column_families: 0
+2021/03/13-22:59:32.773592 7f29bed8ea80 Options.db_log_dir:
+2021/03/13-22:59:32.773593 7f29bed8ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:59:32.773594 7f29bed8ea80 Options.table_cache_numshardbits: 6
+2021/03/13-22:59:32.773594 7f29bed8ea80 Options.max_subcompactions: 1
+2021/03/13-22:59:32.773595 7f29bed8ea80 Options.max_background_flushes: -1
+2021/03/13-22:59:32.773595 7f29bed8ea80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:59:32.773596 7f29bed8ea80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:59:32.773596 7f29bed8ea80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:59:32.773597 7f29bed8ea80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:59:32.773598 7f29bed8ea80 Options.advise_random_on_open: 1
+2021/03/13-22:59:32.773598 7f29bed8ea80 Options.db_write_buffer_size: 0
+2021/03/13-22:59:32.773599 7f29bed8ea80 Options.write_buffer_manager: 0x206ab90
+2021/03/13-22:59:32.773599 7f29bed8ea80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:59:32.773600 7f29bed8ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:59:32.773600 7f29bed8ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:59:32.773601 7f29bed8ea80 Options.use_adaptive_mutex: 0
+2021/03/13-22:59:32.773601 7f29bed8ea80 Options.rate_limiter: (nil)
+2021/03/13-22:59:32.773603 7f29bed8ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:59:32.773610 7f29bed8ea80 Options.wal_recovery_mode: 2
+2021/03/13-22:59:32.773611 7f29bed8ea80 Options.enable_thread_tracking: 0
+2021/03/13-22:59:32.773611 7f29bed8ea80 Options.enable_pipelined_write: 0
+2021/03/13-22:59:32.773612 7f29bed8ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:59:32.773612 7f29bed8ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:59:32.773613 7f29bed8ea80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:59:32.773613 7f29bed8ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:59:32.773614 7f29bed8ea80 Options.row_cache: None
+2021/03/13-22:59:32.773614 7f29bed8ea80 Options.wal_filter: None
+2021/03/13-22:59:32.773615 7f29bed8ea80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:59:32.773616 7f29bed8ea80 Options.allow_ingest_behind: 0
+2021/03/13-22:59:32.773616 7f29bed8ea80 Options.preserve_deletes: 0
+2021/03/13-22:59:32.773617 7f29bed8ea80 Options.two_write_queues: 0
+2021/03/13-22:59:32.773617 7f29bed8ea80 Options.manual_wal_flush: 0
+2021/03/13-22:59:32.773618 7f29bed8ea80 Options.max_background_jobs: 16
+2021/03/13-22:59:32.773619 7f29bed8ea80 Options.max_background_compactions: -1
+2021/03/13-22:59:32.773620 7f29bed8ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:59:32.773620 7f29bed8ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:59:32.773621 7f29bed8ea80 Options.delayed_write_rate : 16777216
+2021/03/13-22:59:32.773621 7f29bed8ea80 Options.max_total_wal_size: 0
+2021/03/13-22:59:32.773622 7f29bed8ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:59:32.773622 7f29bed8ea80 Options.stats_dump_period_sec: 600
+2021/03/13-22:59:32.773623 7f29bed8ea80 Options.max_open_files: -1
+2021/03/13-22:59:32.773624 7f29bed8ea80 Options.bytes_per_sync: 0
+2021/03/13-22:59:32.773624 7f29bed8ea80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:59:32.773625 7f29bed8ea80 Options.compaction_readahead_size: 0
+2021/03/13-22:59:32.773625 7f29bed8ea80 Compression algorithms supported:
+2021/03/13-22:59:32.773626 7f29bed8ea80 Snappy supported: 1
+2021/03/13-22:59:32.773626 7f29bed8ea80 Zlib supported: 1
+2021/03/13-22:59:32.773627 7f29bed8ea80 Bzip supported: 1
+2021/03/13-22:59:32.773627 7f29bed8ea80 LZ4 supported: 1
+2021/03/13-22:59:32.773628 7f29bed8ea80 ZSTDNotFinal supported: 1
+2021/03/13-22:59:32.773632 7f29bed8ea80 ZSTD supported: 1
+2021/03/13-22:59:32.773635 7f29bed8ea80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:59:32.773636 7f29bed8ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:59:32.773732 7f29bed8ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:59:32.773785 7f29bed8ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:59:32.773787 7f29bed8ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:59:32.773788 7f29bed8ea80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:59:32.773789 7f29bed8ea80 Options.compaction_filter: None
+2021/03/13-22:59:32.773790 7f29bed8ea80 Options.compaction_filter_factory: None
+2021/03/13-22:59:32.773790 7f29bed8ea80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:59:32.773791 7f29bed8ea80 Options.table_factory: BlockBasedTable
+2021/03/13-22:59:32.773804 7f29bed8ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x207a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x205fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:59:32.773805 7f29bed8ea80 Options.write_buffer_size: 134217728
+2021/03/13-22:59:32.773806 7f29bed8ea80 Options.max_write_buffer_number: 6
+2021/03/13-22:59:32.773807 7f29bed8ea80 Options.compression[0]: NoCompression
+2021/03/13-22:59:32.773807 7f29bed8ea80 Options.compression[1]: NoCompression
+2021/03/13-22:59:32.773808 7f29bed8ea80 Options.compression[2]: Snappy
+2021/03/13-22:59:32.773808 7f29bed8ea80 Options.compression[3]: Snappy
+2021/03/13-22:59:32.773809 7f29bed8ea80 Options.compression[4]: Snappy
+2021/03/13-22:59:32.773810 7f29bed8ea80 Options.compression[5]: Snappy
+2021/03/13-22:59:32.773810 7f29bed8ea80 Options.compression[6]: Snappy
+2021/03/13-22:59:32.773811 7f29bed8ea80 Options.bottommost_compression: Disabled
+2021/03/13-22:59:32.773812 7f29bed8ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:59:32.773812 7f29bed8ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:59:32.773813 7f29bed8ea80 Options.num_levels: 7
+2021/03/13-22:59:32.773813 7f29bed8ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:59:32.773814 7f29bed8ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:59:32.773814 7f29bed8ea80 Options.compression_opts.window_bits: -14
+2021/03/13-22:59:32.773815 7f29bed8ea80 Options.compression_opts.level: -1
+2021/03/13-22:59:32.773816 7f29bed8ea80 Options.compression_opts.strategy: 0
+2021/03/13-22:59:32.773816 7f29bed8ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:59:32.773817 7f29bed8ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:59:32.773817 7f29bed8ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:59:32.773818 7f29bed8ea80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:59:32.773818 7f29bed8ea80 Options.target_file_size_base: 67108864
+2021/03/13-22:59:32.773819 7f29bed8ea80 Options.target_file_size_multiplier: 1
+2021/03/13-22:59:32.773819 7f29bed8ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:59:32.773820 7f29bed8ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:59:32.773821 7f29bed8ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:59:32.773822 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:59:32.773829 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:59:32.773830 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:59:32.773831 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:59:32.773831 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:59:32.773832 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:59:32.773832 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:59:32.773833 7f29bed8ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:59:32.773833 7f29bed8ea80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:59:32.773834 7f29bed8ea80 Options.arena_block_size: 16777216
+2021/03/13-22:59:32.773835 7f29bed8ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:59:32.773835 7f29bed8ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:59:32.773836 7f29bed8ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:59:32.773836 7f29bed8ea80 Options.disable_auto_compactions: 0
+2021/03/13-22:59:32.773838 7f29bed8ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:59:32.773838 7f29bed8ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:59:32.773839 7f29bed8ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:59:32.773840 7f29bed8ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:59:32.773840 7f29bed8ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:59:32.773841 7f29bed8ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:59:32.773841 7f29bed8ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:59:32.773842 7f29bed8ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:59:32.773843 7f29bed8ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:59:32.773843 7f29bed8ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:59:32.773844 7f29bed8ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:59:32.773844 7f29bed8ea80 Options.table_properties_collectors:
+2021/03/13-22:59:32.773845 7f29bed8ea80 Options.inplace_update_support: 0
+2021/03/13-22:59:32.773846 7f29bed8ea80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:59:32.773846 7f29bed8ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:59:32.773847 7f29bed8ea80 Options.memtable_huge_page_size: 0
+2021/03/13-22:59:32.773847 7f29bed8ea80 Options.bloom_locality: 0
+2021/03/13-22:59:32.773848 7f29bed8ea80 Options.max_successive_merges: 0
+2021/03/13-22:59:32.773849 7f29bed8ea80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:59:32.773849 7f29bed8ea80 Options.paranoid_file_checks: 0
+2021/03/13-22:59:32.773850 7f29bed8ea80 Options.force_consistency_checks: 0
+2021/03/13-22:59:32.773850 7f29bed8ea80 Options.report_bg_io_stats: 0
+2021/03/13-22:59:32.774213 7f29bed8ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:59:32.774215 7f29bed8ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:59:32.774288 7f29bed8ea80 EVENT_LOG_v1 {"time_micros": 1615672772774278, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:59:32.774293 7f29bed8ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:59:33.463560 7f29bed8ea80 EVENT_LOG_v1 {"time_micros": 1615672773463556, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615672774182042 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672774182042
new file mode 100644
index 0000000..a2a8f54
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615672774182042
@@ -0,0 +1,186 @@
+2021/03/13-22:59:33.476182 7f29bed8ea80 RocksDB version: 5.11.3
+2021/03/13-22:59:33.476244 7f29bed8ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:59:33.476246 7f29bed8ea80 Compile date Mar 13 2021
+2021/03/13-22:59:33.476248 7f29bed8ea80 DB SUMMARY
+2021/03/13-22:59:33.476291 7f29bed8ea80 CURRENT file: CURRENT
+2021/03/13-22:59:33.476293 7f29bed8ea80 IDENTITY file: IDENTITY
+2021/03/13-22:59:33.476297 7f29bed8ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:59:33.476298 7f29bed8ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:59:33.476299 7f29bed8ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:59:33.476302 7f29bed8ea80 Options.error_if_exists: 0
+2021/03/13-22:59:33.476302 7f29bed8ea80 Options.create_if_missing: 1
+2021/03/13-22:59:33.476303 7f29bed8ea80 Options.paranoid_checks: 1
+2021/03/13-22:59:33.476304 7f29bed8ea80 Options.env: 0x7f29bf748080
+2021/03/13-22:59:33.476304 7f29bed8ea80 Options.info_log: 0x2082ca0
+2021/03/13-22:59:33.476305 7f29bed8ea80 Options.max_file_opening_threads: 16
+2021/03/13-22:59:33.476305 7f29bed8ea80 Options.statistics: (nil)
+2021/03/13-22:59:33.476306 7f29bed8ea80 Options.use_fsync: 0
+2021/03/13-22:59:33.476307 7f29bed8ea80 Options.max_log_file_size: 0
+2021/03/13-22:59:33.476307 7f29bed8ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:59:33.476308 7f29bed8ea80 Options.log_file_time_to_roll: 0
+2021/03/13-22:59:33.476308 7f29bed8ea80 Options.keep_log_file_num: 1000
+2021/03/13-22:59:33.476309 7f29bed8ea80 Options.recycle_log_file_num: 0
+2021/03/13-22:59:33.476310 7f29bed8ea80 Options.allow_fallocate: 1
+2021/03/13-22:59:33.476310 7f29bed8ea80 Options.allow_mmap_reads: 0
+2021/03/13-22:59:33.476311 7f29bed8ea80 Options.allow_mmap_writes: 0
+2021/03/13-22:59:33.476311 7f29bed8ea80 Options.use_direct_reads: 0
+2021/03/13-22:59:33.476312 7f29bed8ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:59:33.476312 7f29bed8ea80 Options.create_missing_column_families: 0
+2021/03/13-22:59:33.476313 7f29bed8ea80 Options.db_log_dir:
+2021/03/13-22:59:33.476313 7f29bed8ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:59:33.476314 7f29bed8ea80 Options.table_cache_numshardbits: 6
+2021/03/13-22:59:33.476315 7f29bed8ea80 Options.max_subcompactions: 1
+2021/03/13-22:59:33.476315 7f29bed8ea80 Options.max_background_flushes: -1
+2021/03/13-22:59:33.476316 7f29bed8ea80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:59:33.476316 7f29bed8ea80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:59:33.476317 7f29bed8ea80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:59:33.476318 7f29bed8ea80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:59:33.476318 7f29bed8ea80 Options.advise_random_on_open: 1
+2021/03/13-22:59:33.476319 7f29bed8ea80 Options.db_write_buffer_size: 0
+2021/03/13-22:59:33.476319 7f29bed8ea80 Options.write_buffer_manager: 0x206ab90
+2021/03/13-22:59:33.476320 7f29bed8ea80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:59:33.476320 7f29bed8ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:59:33.476321 7f29bed8ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:59:33.476321 7f29bed8ea80 Options.use_adaptive_mutex: 0
+2021/03/13-22:59:33.476322 7f29bed8ea80 Options.rate_limiter: (nil)
+2021/03/13-22:59:33.476323 7f29bed8ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:59:33.476331 7f29bed8ea80 Options.wal_recovery_mode: 2
+2021/03/13-22:59:33.476332 7f29bed8ea80 Options.enable_thread_tracking: 0
+2021/03/13-22:59:33.476332 7f29bed8ea80 Options.enable_pipelined_write: 0
+2021/03/13-22:59:33.476333 7f29bed8ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:59:33.476333 7f29bed8ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:59:33.476334 7f29bed8ea80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:59:33.476335 7f29bed8ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:59:33.476335 7f29bed8ea80 Options.row_cache: None
+2021/03/13-22:59:33.476336 7f29bed8ea80 Options.wal_filter: None
+2021/03/13-22:59:33.476336 7f29bed8ea80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:59:33.476337 7f29bed8ea80 Options.allow_ingest_behind: 0
+2021/03/13-22:59:33.476337 7f29bed8ea80 Options.preserve_deletes: 0
+2021/03/13-22:59:33.476338 7f29bed8ea80 Options.two_write_queues: 0
+2021/03/13-22:59:33.476338 7f29bed8ea80 Options.manual_wal_flush: 0
+2021/03/13-22:59:33.476340 7f29bed8ea80 Options.max_background_jobs: 16
+2021/03/13-22:59:33.476340 7f29bed8ea80 Options.max_background_compactions: -1
+2021/03/13-22:59:33.476341 7f29bed8ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:59:33.476341 7f29bed8ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:59:33.476342 7f29bed8ea80 Options.delayed_write_rate : 16777216
+2021/03/13-22:59:33.476342 7f29bed8ea80 Options.max_total_wal_size: 0
+2021/03/13-22:59:33.476343 7f29bed8ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:59:33.476344 7f29bed8ea80 Options.stats_dump_period_sec: 600
+2021/03/13-22:59:33.476344 7f29bed8ea80 Options.max_open_files: -1
+2021/03/13-22:59:33.476345 7f29bed8ea80 Options.bytes_per_sync: 0
+2021/03/13-22:59:33.476345 7f29bed8ea80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:59:33.476346 7f29bed8ea80 Options.compaction_readahead_size: 0
+2021/03/13-22:59:33.476346 7f29bed8ea80 Compression algorithms supported:
+2021/03/13-22:59:33.476347 7f29bed8ea80 Snappy supported: 1
+2021/03/13-22:59:33.476348 7f29bed8ea80 Zlib supported: 1
+2021/03/13-22:59:33.476348 7f29bed8ea80 Bzip supported: 1
+2021/03/13-22:59:33.476349 7f29bed8ea80 LZ4 supported: 1
+2021/03/13-22:59:33.476349 7f29bed8ea80 ZSTDNotFinal supported: 1
+2021/03/13-22:59:33.476353 7f29bed8ea80 ZSTD supported: 1
+2021/03/13-22:59:33.476356 7f29bed8ea80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:59:33.476357 7f29bed8ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:59:33.476449 7f29bed8ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:59:33.476502 7f29bed8ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:59:33.476504 7f29bed8ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:59:33.476505 7f29bed8ea80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:59:33.476505 7f29bed8ea80 Options.compaction_filter: None
+2021/03/13-22:59:33.476506 7f29bed8ea80 Options.compaction_filter_factory: None
+2021/03/13-22:59:33.476507 7f29bed8ea80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:59:33.476508 7f29bed8ea80 Options.table_factory: BlockBasedTable
+2021/03/13-22:59:33.476521 7f29bed8ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x207a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x205fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:59:33.476521 7f29bed8ea80 Options.write_buffer_size: 134217728
+2021/03/13-22:59:33.476522 7f29bed8ea80 Options.max_write_buffer_number: 6
+2021/03/13-22:59:33.476523 7f29bed8ea80 Options.compression[0]: NoCompression
+2021/03/13-22:59:33.476523 7f29bed8ea80 Options.compression[1]: NoCompression
+2021/03/13-22:59:33.476524 7f29bed8ea80 Options.compression[2]: Snappy
+2021/03/13-22:59:33.476525 7f29bed8ea80 Options.compression[3]: Snappy
+2021/03/13-22:59:33.476525 7f29bed8ea80 Options.compression[4]: Snappy
+2021/03/13-22:59:33.476526 7f29bed8ea80 Options.compression[5]: Snappy
+2021/03/13-22:59:33.476526 7f29bed8ea80 Options.compression[6]: Snappy
+2021/03/13-22:59:33.476527 7f29bed8ea80 Options.bottommost_compression: Disabled
+2021/03/13-22:59:33.476528 7f29bed8ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:59:33.476528 7f29bed8ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:59:33.476529 7f29bed8ea80 Options.num_levels: 7
+2021/03/13-22:59:33.476529 7f29bed8ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:59:33.476530 7f29bed8ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:59:33.476531 7f29bed8ea80 Options.compression_opts.window_bits: -14
+2021/03/13-22:59:33.476531 7f29bed8ea80 Options.compression_opts.level: -1
+2021/03/13-22:59:33.476532 7f29bed8ea80 Options.compression_opts.strategy: 0
+2021/03/13-22:59:33.476532 7f29bed8ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:59:33.476533 7f29bed8ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:59:33.476533 7f29bed8ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:59:33.476534 7f29bed8ea80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:59:33.476535 7f29bed8ea80 Options.target_file_size_base: 67108864
+2021/03/13-22:59:33.476535 7f29bed8ea80 Options.target_file_size_multiplier: 1
+2021/03/13-22:59:33.476536 7f29bed8ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:59:33.476536 7f29bed8ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:59:33.476537 7f29bed8ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:59:33.476538 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:59:33.476546 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:59:33.476547 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:59:33.476547 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:59:33.476548 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:59:33.476549 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:59:33.476549 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:59:33.476550 7f29bed8ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:59:33.476550 7f29bed8ea80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:59:33.476551 7f29bed8ea80 Options.arena_block_size: 16777216
+2021/03/13-22:59:33.476551 7f29bed8ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:59:33.476552 7f29bed8ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:59:33.476553 7f29bed8ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:59:33.476553 7f29bed8ea80 Options.disable_auto_compactions: 0
+2021/03/13-22:59:33.476555 7f29bed8ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:59:33.476555 7f29bed8ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:59:33.476556 7f29bed8ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:59:33.476557 7f29bed8ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:59:33.476557 7f29bed8ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:59:33.476558 7f29bed8ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:59:33.476558 7f29bed8ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:59:33.476559 7f29bed8ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:59:33.476560 7f29bed8ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:59:33.476561 7f29bed8ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:59:33.476561 7f29bed8ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:59:33.476562 7f29bed8ea80 Options.table_properties_collectors:
+2021/03/13-22:59:33.476563 7f29bed8ea80 Options.inplace_update_support: 0
+2021/03/13-22:59:33.476563 7f29bed8ea80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:59:33.476564 7f29bed8ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:59:33.476565 7f29bed8ea80 Options.memtable_huge_page_size: 0
+2021/03/13-22:59:33.476565 7f29bed8ea80 Options.bloom_locality: 0
+2021/03/13-22:59:33.476566 7f29bed8ea80 Options.max_successive_merges: 0
+2021/03/13-22:59:33.476567 7f29bed8ea80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:59:33.476567 7f29bed8ea80 Options.paranoid_file_checks: 0
+2021/03/13-22:59:33.476568 7f29bed8ea80 Options.force_consistency_checks: 0
+2021/03/13-22:59:33.476568 7f29bed8ea80 Options.report_bg_io_stats: 0
+2021/03/13-22:59:33.476935 7f29bed8ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:59:33.476937 7f29bed8ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:59:33.477006 7f29bed8ea80 EVENT_LOG_v1 {"time_micros": 1615672773476996, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:59:33.477011 7f29bed8ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:59:34.168022 7f29bed8ea80 EVENT_LOG_v1 {"time_micros": 1615672774168019, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615673031115543 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673031115543
new file mode 100644
index 0000000..0e3fe79
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673031115543
@@ -0,0 +1,186 @@
+2021/03/13-22:59:34.182348 7f29bed8ea80 RocksDB version: 5.11.3
+2021/03/13-22:59:34.182407 7f29bed8ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-22:59:34.182408 7f29bed8ea80 Compile date Mar 13 2021
+2021/03/13-22:59:34.182411 7f29bed8ea80 DB SUMMARY
+2021/03/13-22:59:34.182454 7f29bed8ea80 CURRENT file: CURRENT
+2021/03/13-22:59:34.182455 7f29bed8ea80 IDENTITY file: IDENTITY
+2021/03/13-22:59:34.182460 7f29bed8ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-22:59:34.182461 7f29bed8ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-22:59:34.182462 7f29bed8ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-22:59:34.182464 7f29bed8ea80 Options.error_if_exists: 0
+2021/03/13-22:59:34.182465 7f29bed8ea80 Options.create_if_missing: 1
+2021/03/13-22:59:34.182466 7f29bed8ea80 Options.paranoid_checks: 1
+2021/03/13-22:59:34.182466 7f29bed8ea80 Options.env: 0x7f29bf748080
+2021/03/13-22:59:34.182467 7f29bed8ea80 Options.info_log: 0x2082ca0
+2021/03/13-22:59:34.182467 7f29bed8ea80 Options.max_file_opening_threads: 16
+2021/03/13-22:59:34.182468 7f29bed8ea80 Options.statistics: (nil)
+2021/03/13-22:59:34.182469 7f29bed8ea80 Options.use_fsync: 0
+2021/03/13-22:59:34.182469 7f29bed8ea80 Options.max_log_file_size: 0
+2021/03/13-22:59:34.182470 7f29bed8ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-22:59:34.182471 7f29bed8ea80 Options.log_file_time_to_roll: 0
+2021/03/13-22:59:34.182471 7f29bed8ea80 Options.keep_log_file_num: 1000
+2021/03/13-22:59:34.182472 7f29bed8ea80 Options.recycle_log_file_num: 0
+2021/03/13-22:59:34.182472 7f29bed8ea80 Options.allow_fallocate: 1
+2021/03/13-22:59:34.182473 7f29bed8ea80 Options.allow_mmap_reads: 0
+2021/03/13-22:59:34.182473 7f29bed8ea80 Options.allow_mmap_writes: 0
+2021/03/13-22:59:34.182474 7f29bed8ea80 Options.use_direct_reads: 0
+2021/03/13-22:59:34.182475 7f29bed8ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-22:59:34.182475 7f29bed8ea80 Options.create_missing_column_families: 0
+2021/03/13-22:59:34.182476 7f29bed8ea80 Options.db_log_dir:
+2021/03/13-22:59:34.182476 7f29bed8ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-22:59:34.182477 7f29bed8ea80 Options.table_cache_numshardbits: 6
+2021/03/13-22:59:34.182477 7f29bed8ea80 Options.max_subcompactions: 1
+2021/03/13-22:59:34.182478 7f29bed8ea80 Options.max_background_flushes: -1
+2021/03/13-22:59:34.182479 7f29bed8ea80 Options.WAL_ttl_seconds: 0
+2021/03/13-22:59:34.182479 7f29bed8ea80 Options.WAL_size_limit_MB: 0
+2021/03/13-22:59:34.182480 7f29bed8ea80 Options.manifest_preallocation_size: 4194304
+2021/03/13-22:59:34.182480 7f29bed8ea80 Options.is_fd_close_on_exec: 1
+2021/03/13-22:59:34.182481 7f29bed8ea80 Options.advise_random_on_open: 1
+2021/03/13-22:59:34.182481 7f29bed8ea80 Options.db_write_buffer_size: 0
+2021/03/13-22:59:34.182482 7f29bed8ea80 Options.write_buffer_manager: 0x206ab90
+2021/03/13-22:59:34.182482 7f29bed8ea80 Options.access_hint_on_compaction_start: 1
+2021/03/13-22:59:34.182483 7f29bed8ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-22:59:34.182484 7f29bed8ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-22:59:34.182484 7f29bed8ea80 Options.use_adaptive_mutex: 0
+2021/03/13-22:59:34.182485 7f29bed8ea80 Options.rate_limiter: (nil)
+2021/03/13-22:59:34.182486 7f29bed8ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-22:59:34.182494 7f29bed8ea80 Options.wal_recovery_mode: 2
+2021/03/13-22:59:34.182494 7f29bed8ea80 Options.enable_thread_tracking: 0
+2021/03/13-22:59:34.182495 7f29bed8ea80 Options.enable_pipelined_write: 0
+2021/03/13-22:59:34.182496 7f29bed8ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-22:59:34.182496 7f29bed8ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-22:59:34.182497 7f29bed8ea80 Options.write_thread_max_yield_usec: 100
+2021/03/13-22:59:34.182497 7f29bed8ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-22:59:34.182498 7f29bed8ea80 Options.row_cache: None
+2021/03/13-22:59:34.182498 7f29bed8ea80 Options.wal_filter: None
+2021/03/13-22:59:34.182499 7f29bed8ea80 Options.avoid_flush_during_recovery: 0
+2021/03/13-22:59:34.182500 7f29bed8ea80 Options.allow_ingest_behind: 0
+2021/03/13-22:59:34.182500 7f29bed8ea80 Options.preserve_deletes: 0
+2021/03/13-22:59:34.182501 7f29bed8ea80 Options.two_write_queues: 0
+2021/03/13-22:59:34.182501 7f29bed8ea80 Options.manual_wal_flush: 0
+2021/03/13-22:59:34.182502 7f29bed8ea80 Options.max_background_jobs: 16
+2021/03/13-22:59:34.182503 7f29bed8ea80 Options.max_background_compactions: -1
+2021/03/13-22:59:34.182503 7f29bed8ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-22:59:34.182504 7f29bed8ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-22:59:34.182505 7f29bed8ea80 Options.delayed_write_rate : 16777216
+2021/03/13-22:59:34.182505 7f29bed8ea80 Options.max_total_wal_size: 0
+2021/03/13-22:59:34.182506 7f29bed8ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-22:59:34.182506 7f29bed8ea80 Options.stats_dump_period_sec: 600
+2021/03/13-22:59:34.182507 7f29bed8ea80 Options.max_open_files: -1
+2021/03/13-22:59:34.182507 7f29bed8ea80 Options.bytes_per_sync: 0
+2021/03/13-22:59:34.182508 7f29bed8ea80 Options.wal_bytes_per_sync: 0
+2021/03/13-22:59:34.182509 7f29bed8ea80 Options.compaction_readahead_size: 0
+2021/03/13-22:59:34.182509 7f29bed8ea80 Compression algorithms supported:
+2021/03/13-22:59:34.182510 7f29bed8ea80 Snappy supported: 1
+2021/03/13-22:59:34.182510 7f29bed8ea80 Zlib supported: 1
+2021/03/13-22:59:34.182511 7f29bed8ea80 Bzip supported: 1
+2021/03/13-22:59:34.182511 7f29bed8ea80 LZ4 supported: 1
+2021/03/13-22:59:34.182512 7f29bed8ea80 ZSTDNotFinal supported: 1
+2021/03/13-22:59:34.182516 7f29bed8ea80 ZSTD supported: 1
+2021/03/13-22:59:34.182519 7f29bed8ea80 Fast CRC32 supported: Supported on x86
+2021/03/13-22:59:34.182520 7f29bed8ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-22:59:34.182611 7f29bed8ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-22:59:34.182665 7f29bed8ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-22:59:34.182667 7f29bed8ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-22:59:34.182667 7f29bed8ea80 Options.merge_operator: UInt64AddOperator
+2021/03/13-22:59:34.182668 7f29bed8ea80 Options.compaction_filter: None
+2021/03/13-22:59:34.182669 7f29bed8ea80 Options.compaction_filter_factory: None
+2021/03/13-22:59:34.182669 7f29bed8ea80 Options.memtable_factory: SkipListFactory
+2021/03/13-22:59:34.182670 7f29bed8ea80 Options.table_factory: BlockBasedTable
+2021/03/13-22:59:34.182683 7f29bed8ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x207a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x205fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-22:59:34.182684 7f29bed8ea80 Options.write_buffer_size: 134217728
+2021/03/13-22:59:34.182684 7f29bed8ea80 Options.max_write_buffer_number: 6
+2021/03/13-22:59:34.182685 7f29bed8ea80 Options.compression[0]: NoCompression
+2021/03/13-22:59:34.182686 7f29bed8ea80 Options.compression[1]: NoCompression
+2021/03/13-22:59:34.182686 7f29bed8ea80 Options.compression[2]: Snappy
+2021/03/13-22:59:34.182687 7f29bed8ea80 Options.compression[3]: Snappy
+2021/03/13-22:59:34.182688 7f29bed8ea80 Options.compression[4]: Snappy
+2021/03/13-22:59:34.182688 7f29bed8ea80 Options.compression[5]: Snappy
+2021/03/13-22:59:34.182689 7f29bed8ea80 Options.compression[6]: Snappy
+2021/03/13-22:59:34.182689 7f29bed8ea80 Options.bottommost_compression: Disabled
+2021/03/13-22:59:34.182690 7f29bed8ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-22:59:34.182691 7f29bed8ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-22:59:34.182691 7f29bed8ea80 Options.num_levels: 7
+2021/03/13-22:59:34.182692 7f29bed8ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-22:59:34.182692 7f29bed8ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-22:59:34.182693 7f29bed8ea80 Options.compression_opts.window_bits: -14
+2021/03/13-22:59:34.182694 7f29bed8ea80 Options.compression_opts.level: -1
+2021/03/13-22:59:34.182694 7f29bed8ea80 Options.compression_opts.strategy: 0
+2021/03/13-22:59:34.182695 7f29bed8ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-22:59:34.182695 7f29bed8ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-22:59:34.182696 7f29bed8ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-22:59:34.182696 7f29bed8ea80 Options.level0_stop_writes_trigger: 36
+2021/03/13-22:59:34.182697 7f29bed8ea80 Options.target_file_size_base: 67108864
+2021/03/13-22:59:34.182697 7f29bed8ea80 Options.target_file_size_multiplier: 1
+2021/03/13-22:59:34.182698 7f29bed8ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-22:59:34.182699 7f29bed8ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-22:59:34.182699 7f29bed8ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-22:59:34.182701 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-22:59:34.182708 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-22:59:34.182709 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-22:59:34.182710 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-22:59:34.182710 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-22:59:34.182711 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-22:59:34.182711 7f29bed8ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-22:59:34.182712 7f29bed8ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-22:59:34.182712 7f29bed8ea80 Options.max_compaction_bytes: 1677721600
+2021/03/13-22:59:34.182713 7f29bed8ea80 Options.arena_block_size: 16777216
+2021/03/13-22:59:34.182713 7f29bed8ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-22:59:34.182714 7f29bed8ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-22:59:34.182715 7f29bed8ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-22:59:34.182715 7f29bed8ea80 Options.disable_auto_compactions: 0
+2021/03/13-22:59:34.182717 7f29bed8ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-22:59:34.182717 7f29bed8ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-22:59:34.182718 7f29bed8ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-22:59:34.182719 7f29bed8ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-22:59:34.182719 7f29bed8ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-22:59:34.182720 7f29bed8ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-22:59:34.182720 7f29bed8ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-22:59:34.182721 7f29bed8ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-22:59:34.182722 7f29bed8ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-22:59:34.182722 7f29bed8ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-22:59:34.182723 7f29bed8ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-22:59:34.182723 7f29bed8ea80 Options.table_properties_collectors:
+2021/03/13-22:59:34.182724 7f29bed8ea80 Options.inplace_update_support: 0
+2021/03/13-22:59:34.182725 7f29bed8ea80 Options.inplace_update_num_locks: 10000
+2021/03/13-22:59:34.182725 7f29bed8ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-22:59:34.182726 7f29bed8ea80 Options.memtable_huge_page_size: 0
+2021/03/13-22:59:34.182727 7f29bed8ea80 Options.bloom_locality: 0
+2021/03/13-22:59:34.182727 7f29bed8ea80 Options.max_successive_merges: 0
+2021/03/13-22:59:34.182728 7f29bed8ea80 Options.optimize_filters_for_hits: 0
+2021/03/13-22:59:34.182728 7f29bed8ea80 Options.paranoid_file_checks: 0
+2021/03/13-22:59:34.182729 7f29bed8ea80 Options.force_consistency_checks: 0
+2021/03/13-22:59:34.182729 7f29bed8ea80 Options.report_bg_io_stats: 0
+2021/03/13-22:59:34.183093 7f29bed8ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-22:59:34.183096 7f29bed8ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-22:59:34.183165 7f29bed8ea80 EVENT_LOG_v1 {"time_micros": 1615672774183155, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-22:59:34.183170 7f29bed8ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-22:59:34.854082 7f29bed8ea80 EVENT_LOG_v1 {"time_micros": 1615672774854078, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615673031822104 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673031822104
new file mode 100644
index 0000000..7ea3272
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673031822104
@@ -0,0 +1,186 @@
+2021/03/13-23:03:51.115880 7fb8b0195a80 RocksDB version: 5.11.3
+2021/03/13-23:03:51.115947 7fb8b0195a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:03:51.115949 7fb8b0195a80 Compile date Mar 13 2021
+2021/03/13-23:03:51.115954 7fb8b0195a80 DB SUMMARY
+2021/03/13-23:03:51.116012 7fb8b0195a80 CURRENT file: CURRENT
+2021/03/13-23:03:51.116013 7fb8b0195a80 IDENTITY file: IDENTITY
+2021/03/13-23:03:51.116018 7fb8b0195a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:03:51.116020 7fb8b0195a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:03:51.116021 7fb8b0195a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:03:51.116024 7fb8b0195a80 Options.error_if_exists: 0
+2021/03/13-23:03:51.116025 7fb8b0195a80 Options.create_if_missing: 1
+2021/03/13-23:03:51.116025 7fb8b0195a80 Options.paranoid_checks: 1
+2021/03/13-23:03:51.116026 7fb8b0195a80 Options.env: 0x7fb8b0b4f080
+2021/03/13-23:03:51.116026 7fb8b0195a80 Options.info_log: 0x2628ca0
+2021/03/13-23:03:51.116027 7fb8b0195a80 Options.max_file_opening_threads: 16
+2021/03/13-23:03:51.116028 7fb8b0195a80 Options.statistics: (nil)
+2021/03/13-23:03:51.116029 7fb8b0195a80 Options.use_fsync: 0
+2021/03/13-23:03:51.116029 7fb8b0195a80 Options.max_log_file_size: 0
+2021/03/13-23:03:51.116030 7fb8b0195a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:03:51.116031 7fb8b0195a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:03:51.116031 7fb8b0195a80 Options.keep_log_file_num: 1000
+2021/03/13-23:03:51.116032 7fb8b0195a80 Options.recycle_log_file_num: 0
+2021/03/13-23:03:51.116033 7fb8b0195a80 Options.allow_fallocate: 1
+2021/03/13-23:03:51.116033 7fb8b0195a80 Options.allow_mmap_reads: 0
+2021/03/13-23:03:51.116034 7fb8b0195a80 Options.allow_mmap_writes: 0
+2021/03/13-23:03:51.116034 7fb8b0195a80 Options.use_direct_reads: 0
+2021/03/13-23:03:51.116035 7fb8b0195a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:03:51.116035 7fb8b0195a80 Options.create_missing_column_families: 0
+2021/03/13-23:03:51.116036 7fb8b0195a80 Options.db_log_dir:
+2021/03/13-23:03:51.116037 7fb8b0195a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:03:51.116037 7fb8b0195a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:03:51.116038 7fb8b0195a80 Options.max_subcompactions: 1
+2021/03/13-23:03:51.116039 7fb8b0195a80 Options.max_background_flushes: -1
+2021/03/13-23:03:51.116039 7fb8b0195a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:03:51.116040 7fb8b0195a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:03:51.116041 7fb8b0195a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:03:51.116041 7fb8b0195a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:03:51.116042 7fb8b0195a80 Options.advise_random_on_open: 1
+2021/03/13-23:03:51.116042 7fb8b0195a80 Options.db_write_buffer_size: 0
+2021/03/13-23:03:51.116043 7fb8b0195a80 Options.write_buffer_manager: 0x2610b90
+2021/03/13-23:03:51.116044 7fb8b0195a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:03:51.116044 7fb8b0195a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:03:51.116045 7fb8b0195a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:03:51.116046 7fb8b0195a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:03:51.116046 7fb8b0195a80 Options.rate_limiter: (nil)
+2021/03/13-23:03:51.116048 7fb8b0195a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:03:51.116058 7fb8b0195a80 Options.wal_recovery_mode: 2
+2021/03/13-23:03:51.116059 7fb8b0195a80 Options.enable_thread_tracking: 0
+2021/03/13-23:03:51.116059 7fb8b0195a80 Options.enable_pipelined_write: 0
+2021/03/13-23:03:51.116060 7fb8b0195a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:03:51.116061 7fb8b0195a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:03:51.116061 7fb8b0195a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:03:51.116062 7fb8b0195a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:03:51.116063 7fb8b0195a80 Options.row_cache: None
+2021/03/13-23:03:51.116063 7fb8b0195a80 Options.wal_filter: None
+2021/03/13-23:03:51.116064 7fb8b0195a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:03:51.116065 7fb8b0195a80 Options.allow_ingest_behind: 0
+2021/03/13-23:03:51.116065 7fb8b0195a80 Options.preserve_deletes: 0
+2021/03/13-23:03:51.116066 7fb8b0195a80 Options.two_write_queues: 0
+2021/03/13-23:03:51.116066 7fb8b0195a80 Options.manual_wal_flush: 0
+2021/03/13-23:03:51.116068 7fb8b0195a80 Options.max_background_jobs: 16
+2021/03/13-23:03:51.116068 7fb8b0195a80 Options.max_background_compactions: -1
+2021/03/13-23:03:51.116069 7fb8b0195a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:03:51.116069 7fb8b0195a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:03:51.116070 7fb8b0195a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:03:51.116071 7fb8b0195a80 Options.max_total_wal_size: 0
+2021/03/13-23:03:51.116071 7fb8b0195a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:03:51.116072 7fb8b0195a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:03:51.116073 7fb8b0195a80 Options.max_open_files: -1
+2021/03/13-23:03:51.116073 7fb8b0195a80 Options.bytes_per_sync: 0
+2021/03/13-23:03:51.116074 7fb8b0195a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:03:51.116075 7fb8b0195a80 Options.compaction_readahead_size: 0
+2021/03/13-23:03:51.116075 7fb8b0195a80 Compression algorithms supported:
+2021/03/13-23:03:51.116076 7fb8b0195a80 Snappy supported: 1
+2021/03/13-23:03:51.116077 7fb8b0195a80 Zlib supported: 1
+2021/03/13-23:03:51.116077 7fb8b0195a80 Bzip supported: 1
+2021/03/13-23:03:51.116078 7fb8b0195a80 LZ4 supported: 1
+2021/03/13-23:03:51.116078 7fb8b0195a80 ZSTDNotFinal supported: 1
+2021/03/13-23:03:51.116083 7fb8b0195a80 ZSTD supported: 1
+2021/03/13-23:03:51.116086 7fb8b0195a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:03:51.116088 7fb8b0195a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:03:51.116187 7fb8b0195a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:03:51.116251 7fb8b0195a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:03:51.116253 7fb8b0195a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:03:51.116254 7fb8b0195a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:03:51.116255 7fb8b0195a80 Options.compaction_filter: None
+2021/03/13-23:03:51.116255 7fb8b0195a80 Options.compaction_filter_factory: None
+2021/03/13-23:03:51.116256 7fb8b0195a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:03:51.116257 7fb8b0195a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:03:51.116271 7fb8b0195a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2620520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2605c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:03:51.116272 7fb8b0195a80 Options.write_buffer_size: 134217728
+2021/03/13-23:03:51.116273 7fb8b0195a80 Options.max_write_buffer_number: 6
+2021/03/13-23:03:51.116273 7fb8b0195a80 Options.compression[0]: NoCompression
+2021/03/13-23:03:51.116274 7fb8b0195a80 Options.compression[1]: NoCompression
+2021/03/13-23:03:51.116275 7fb8b0195a80 Options.compression[2]: Snappy
+2021/03/13-23:03:51.116276 7fb8b0195a80 Options.compression[3]: Snappy
+2021/03/13-23:03:51.116276 7fb8b0195a80 Options.compression[4]: Snappy
+2021/03/13-23:03:51.116277 7fb8b0195a80 Options.compression[5]: Snappy
+2021/03/13-23:03:51.116277 7fb8b0195a80 Options.compression[6]: Snappy
+2021/03/13-23:03:51.116278 7fb8b0195a80 Options.bottommost_compression: Disabled
+2021/03/13-23:03:51.116279 7fb8b0195a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:03:51.116280 7fb8b0195a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:03:51.116280 7fb8b0195a80 Options.num_levels: 7
+2021/03/13-23:03:51.116281 7fb8b0195a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:03:51.116282 7fb8b0195a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:03:51.116282 7fb8b0195a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:03:51.116283 7fb8b0195a80 Options.compression_opts.level: -1
+2021/03/13-23:03:51.116284 7fb8b0195a80 Options.compression_opts.strategy: 0
+2021/03/13-23:03:51.116284 7fb8b0195a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:03:51.116285 7fb8b0195a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:03:51.116286 7fb8b0195a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:03:51.116286 7fb8b0195a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:03:51.116287 7fb8b0195a80 Options.target_file_size_base: 67108864
+2021/03/13-23:03:51.116287 7fb8b0195a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:03:51.116288 7fb8b0195a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:03:51.116289 7fb8b0195a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:03:51.116289 7fb8b0195a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:03:51.116291 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:03:51.116300 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:03:51.116301 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:03:51.116302 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:03:51.116302 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:03:51.116303 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:03:51.116304 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:03:51.116304 7fb8b0195a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:03:51.116305 7fb8b0195a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:03:51.116306 7fb8b0195a80 Options.arena_block_size: 16777216
+2021/03/13-23:03:51.116306 7fb8b0195a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:03:51.116307 7fb8b0195a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:03:51.116308 7fb8b0195a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:03:51.116308 7fb8b0195a80 Options.disable_auto_compactions: 0
+2021/03/13-23:03:51.116310 7fb8b0195a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:03:51.116311 7fb8b0195a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:03:51.116311 7fb8b0195a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:03:51.116312 7fb8b0195a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:03:51.116313 7fb8b0195a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:03:51.116314 7fb8b0195a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:03:51.116314 7fb8b0195a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:03:51.116315 7fb8b0195a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:03:51.116316 7fb8b0195a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:03:51.116317 7fb8b0195a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:03:51.116317 7fb8b0195a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:03:51.116318 7fb8b0195a80 Options.table_properties_collectors:
+2021/03/13-23:03:51.116319 7fb8b0195a80 Options.inplace_update_support: 0
+2021/03/13-23:03:51.116319 7fb8b0195a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:03:51.116320 7fb8b0195a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:03:51.116321 7fb8b0195a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:03:51.116322 7fb8b0195a80 Options.bloom_locality: 0
+2021/03/13-23:03:51.116322 7fb8b0195a80 Options.max_successive_merges: 0
+2021/03/13-23:03:51.116323 7fb8b0195a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:03:51.116324 7fb8b0195a80 Options.paranoid_file_checks: 0
+2021/03/13-23:03:51.116324 7fb8b0195a80 Options.force_consistency_checks: 0
+2021/03/13-23:03:51.116325 7fb8b0195a80 Options.report_bg_io_stats: 0
+2021/03/13-23:03:51.116773 7fb8b0195a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:03:51.116776 7fb8b0195a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:03:51.116851 7fb8b0195a80 EVENT_LOG_v1 {"time_micros": 1615673031116840, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:03:51.116857 7fb8b0195a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:03:51.809697 7fb8b0195a80 EVENT_LOG_v1 {"time_micros": 1615673031809694, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615673032522607 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673032522607
new file mode 100644
index 0000000..955a763
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673032522607
@@ -0,0 +1,186 @@
+2021/03/13-23:03:51.822411 7fb8b0195a80 RocksDB version: 5.11.3
+2021/03/13-23:03:51.822468 7fb8b0195a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:03:51.822470 7fb8b0195a80 Compile date Mar 13 2021
+2021/03/13-23:03:51.822474 7fb8b0195a80 DB SUMMARY
+2021/03/13-23:03:51.822521 7fb8b0195a80 CURRENT file: CURRENT
+2021/03/13-23:03:51.822522 7fb8b0195a80 IDENTITY file: IDENTITY
+2021/03/13-23:03:51.822527 7fb8b0195a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:03:51.822528 7fb8b0195a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:03:51.822529 7fb8b0195a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:03:51.822532 7fb8b0195a80 Options.error_if_exists: 0
+2021/03/13-23:03:51.822532 7fb8b0195a80 Options.create_if_missing: 1
+2021/03/13-23:03:51.822533 7fb8b0195a80 Options.paranoid_checks: 1
+2021/03/13-23:03:51.822534 7fb8b0195a80 Options.env: 0x7fb8b0b4f080
+2021/03/13-23:03:51.822534 7fb8b0195a80 Options.info_log: 0x2628ca0
+2021/03/13-23:03:51.822535 7fb8b0195a80 Options.max_file_opening_threads: 16
+2021/03/13-23:03:51.822535 7fb8b0195a80 Options.statistics: (nil)
+2021/03/13-23:03:51.822536 7fb8b0195a80 Options.use_fsync: 0
+2021/03/13-23:03:51.822537 7fb8b0195a80 Options.max_log_file_size: 0
+2021/03/13-23:03:51.822537 7fb8b0195a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:03:51.822538 7fb8b0195a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:03:51.822538 7fb8b0195a80 Options.keep_log_file_num: 1000
+2021/03/13-23:03:51.822539 7fb8b0195a80 Options.recycle_log_file_num: 0
+2021/03/13-23:03:51.822540 7fb8b0195a80 Options.allow_fallocate: 1
+2021/03/13-23:03:51.822540 7fb8b0195a80 Options.allow_mmap_reads: 0
+2021/03/13-23:03:51.822541 7fb8b0195a80 Options.allow_mmap_writes: 0
+2021/03/13-23:03:51.822541 7fb8b0195a80 Options.use_direct_reads: 0
+2021/03/13-23:03:51.822542 7fb8b0195a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:03:51.822542 7fb8b0195a80 Options.create_missing_column_families: 0
+2021/03/13-23:03:51.822543 7fb8b0195a80 Options.db_log_dir:
+2021/03/13-23:03:51.822543 7fb8b0195a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:03:51.822544 7fb8b0195a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:03:51.822545 7fb8b0195a80 Options.max_subcompactions: 1
+2021/03/13-23:03:51.822545 7fb8b0195a80 Options.max_background_flushes: -1
+2021/03/13-23:03:51.822546 7fb8b0195a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:03:51.822546 7fb8b0195a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:03:51.822547 7fb8b0195a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:03:51.822548 7fb8b0195a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:03:51.822548 7fb8b0195a80 Options.advise_random_on_open: 1
+2021/03/13-23:03:51.822549 7fb8b0195a80 Options.db_write_buffer_size: 0
+2021/03/13-23:03:51.822549 7fb8b0195a80 Options.write_buffer_manager: 0x2610b90
+2021/03/13-23:03:51.822550 7fb8b0195a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:03:51.822550 7fb8b0195a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:03:51.822551 7fb8b0195a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:03:51.822551 7fb8b0195a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:03:51.822552 7fb8b0195a80 Options.rate_limiter: (nil)
+2021/03/13-23:03:51.822553 7fb8b0195a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:03:51.822561 7fb8b0195a80 Options.wal_recovery_mode: 2
+2021/03/13-23:03:51.822562 7fb8b0195a80 Options.enable_thread_tracking: 0
+2021/03/13-23:03:51.822562 7fb8b0195a80 Options.enable_pipelined_write: 0
+2021/03/13-23:03:51.822563 7fb8b0195a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:03:51.822563 7fb8b0195a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:03:51.822564 7fb8b0195a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:03:51.822565 7fb8b0195a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:03:51.822565 7fb8b0195a80 Options.row_cache: None
+2021/03/13-23:03:51.822566 7fb8b0195a80 Options.wal_filter: None
+2021/03/13-23:03:51.822566 7fb8b0195a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:03:51.822567 7fb8b0195a80 Options.allow_ingest_behind: 0
+2021/03/13-23:03:51.822567 7fb8b0195a80 Options.preserve_deletes: 0
+2021/03/13-23:03:51.822568 7fb8b0195a80 Options.two_write_queues: 0
+2021/03/13-23:03:51.822569 7fb8b0195a80 Options.manual_wal_flush: 0
+2021/03/13-23:03:51.822570 7fb8b0195a80 Options.max_background_jobs: 16
+2021/03/13-23:03:51.822570 7fb8b0195a80 Options.max_background_compactions: -1
+2021/03/13-23:03:51.822571 7fb8b0195a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:03:51.822571 7fb8b0195a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:03:51.822572 7fb8b0195a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:03:51.822573 7fb8b0195a80 Options.max_total_wal_size: 0
+2021/03/13-23:03:51.822573 7fb8b0195a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:03:51.822574 7fb8b0195a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:03:51.822574 7fb8b0195a80 Options.max_open_files: -1
+2021/03/13-23:03:51.822575 7fb8b0195a80 Options.bytes_per_sync: 0
+2021/03/13-23:03:51.822576 7fb8b0195a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:03:51.822576 7fb8b0195a80 Options.compaction_readahead_size: 0
+2021/03/13-23:03:51.822577 7fb8b0195a80 Compression algorithms supported:
+2021/03/13-23:03:51.822577 7fb8b0195a80 Snappy supported: 1
+2021/03/13-23:03:51.822578 7fb8b0195a80 Zlib supported: 1
+2021/03/13-23:03:51.822578 7fb8b0195a80 Bzip supported: 1
+2021/03/13-23:03:51.822579 7fb8b0195a80 LZ4 supported: 1
+2021/03/13-23:03:51.822579 7fb8b0195a80 ZSTDNotFinal supported: 1
+2021/03/13-23:03:51.822583 7fb8b0195a80 ZSTD supported: 1
+2021/03/13-23:03:51.822586 7fb8b0195a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:03:51.822588 7fb8b0195a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:03:51.822676 7fb8b0195a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:03:51.822727 7fb8b0195a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:03:51.822729 7fb8b0195a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:03:51.822730 7fb8b0195a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:03:51.822730 7fb8b0195a80 Options.compaction_filter: None
+2021/03/13-23:03:51.822731 7fb8b0195a80 Options.compaction_filter_factory: None
+2021/03/13-23:03:51.822732 7fb8b0195a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:03:51.822733 7fb8b0195a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:03:51.822745 7fb8b0195a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2620520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2605c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:03:51.822746 7fb8b0195a80 Options.write_buffer_size: 134217728
+2021/03/13-23:03:51.822747 7fb8b0195a80 Options.max_write_buffer_number: 6
+2021/03/13-23:03:51.822748 7fb8b0195a80 Options.compression[0]: NoCompression
+2021/03/13-23:03:51.822748 7fb8b0195a80 Options.compression[1]: NoCompression
+2021/03/13-23:03:51.822749 7fb8b0195a80 Options.compression[2]: Snappy
+2021/03/13-23:03:51.822749 7fb8b0195a80 Options.compression[3]: Snappy
+2021/03/13-23:03:51.822750 7fb8b0195a80 Options.compression[4]: Snappy
+2021/03/13-23:03:51.822751 7fb8b0195a80 Options.compression[5]: Snappy
+2021/03/13-23:03:51.822751 7fb8b0195a80 Options.compression[6]: Snappy
+2021/03/13-23:03:51.822752 7fb8b0195a80 Options.bottommost_compression: Disabled
+2021/03/13-23:03:51.822753 7fb8b0195a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:03:51.822753 7fb8b0195a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:03:51.822754 7fb8b0195a80 Options.num_levels: 7
+2021/03/13-23:03:51.822754 7fb8b0195a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:03:51.822755 7fb8b0195a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:03:51.822755 7fb8b0195a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:03:51.822756 7fb8b0195a80 Options.compression_opts.level: -1
+2021/03/13-23:03:51.822757 7fb8b0195a80 Options.compression_opts.strategy: 0
+2021/03/13-23:03:51.822757 7fb8b0195a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:03:51.822758 7fb8b0195a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:03:51.822758 7fb8b0195a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:03:51.822759 7fb8b0195a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:03:51.822760 7fb8b0195a80 Options.target_file_size_base: 67108864
+2021/03/13-23:03:51.822760 7fb8b0195a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:03:51.822761 7fb8b0195a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:03:51.822761 7fb8b0195a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:03:51.822762 7fb8b0195a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:03:51.822764 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:03:51.822771 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:03:51.822772 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:03:51.822772 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:03:51.822773 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:03:51.822773 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:03:51.822774 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:03:51.822774 7fb8b0195a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:03:51.822775 7fb8b0195a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:03:51.822776 7fb8b0195a80 Options.arena_block_size: 16777216
+2021/03/13-23:03:51.822776 7fb8b0195a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:03:51.822777 7fb8b0195a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:03:51.822777 7fb8b0195a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:03:51.822778 7fb8b0195a80 Options.disable_auto_compactions: 0
+2021/03/13-23:03:51.822779 7fb8b0195a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:03:51.822780 7fb8b0195a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:03:51.822781 7fb8b0195a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:03:51.822781 7fb8b0195a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:03:51.822782 7fb8b0195a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:03:51.822782 7fb8b0195a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:03:51.822783 7fb8b0195a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:03:51.822784 7fb8b0195a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:03:51.822784 7fb8b0195a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:03:51.822785 7fb8b0195a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:03:51.822786 7fb8b0195a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:03:51.822786 7fb8b0195a80 Options.table_properties_collectors:
+2021/03/13-23:03:51.822787 7fb8b0195a80 Options.inplace_update_support: 0
+2021/03/13-23:03:51.822787 7fb8b0195a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:03:51.822788 7fb8b0195a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:03:51.822789 7fb8b0195a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:03:51.822789 7fb8b0195a80 Options.bloom_locality: 0
+2021/03/13-23:03:51.822790 7fb8b0195a80 Options.max_successive_merges: 0
+2021/03/13-23:03:51.822790 7fb8b0195a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:03:51.822791 7fb8b0195a80 Options.paranoid_file_checks: 0
+2021/03/13-23:03:51.822792 7fb8b0195a80 Options.force_consistency_checks: 0
+2021/03/13-23:03:51.822792 7fb8b0195a80 Options.report_bg_io_stats: 0
+2021/03/13-23:03:51.823156 7fb8b0195a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:03:51.823159 7fb8b0195a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:03:51.823224 7fb8b0195a80 EVENT_LOG_v1 {"time_micros": 1615673031823213, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:03:51.823229 7fb8b0195a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:03:52.510250 7fb8b0195a80 EVENT_LOG_v1 {"time_micros": 1615673032510246, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615673033219601 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673033219601
new file mode 100644
index 0000000..48afaf2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673033219601
@@ -0,0 +1,186 @@
+2021/03/13-23:03:52.522920 7fb8b0195a80 RocksDB version: 5.11.3
+2021/03/13-23:03:52.522981 7fb8b0195a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:03:52.522982 7fb8b0195a80 Compile date Mar 13 2021
+2021/03/13-23:03:52.522987 7fb8b0195a80 DB SUMMARY
+2021/03/13-23:03:52.523031 7fb8b0195a80 CURRENT file: CURRENT
+2021/03/13-23:03:52.523032 7fb8b0195a80 IDENTITY file: IDENTITY
+2021/03/13-23:03:52.523036 7fb8b0195a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:03:52.523038 7fb8b0195a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:03:52.523038 7fb8b0195a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:03:52.523041 7fb8b0195a80 Options.error_if_exists: 0
+2021/03/13-23:03:52.523042 7fb8b0195a80 Options.create_if_missing: 1
+2021/03/13-23:03:52.523042 7fb8b0195a80 Options.paranoid_checks: 1
+2021/03/13-23:03:52.523043 7fb8b0195a80 Options.env: 0x7fb8b0b4f080
+2021/03/13-23:03:52.523044 7fb8b0195a80 Options.info_log: 0x2628ca0
+2021/03/13-23:03:52.523044 7fb8b0195a80 Options.max_file_opening_threads: 16
+2021/03/13-23:03:52.523045 7fb8b0195a80 Options.statistics: (nil)
+2021/03/13-23:03:52.523046 7fb8b0195a80 Options.use_fsync: 0
+2021/03/13-23:03:52.523046 7fb8b0195a80 Options.max_log_file_size: 0
+2021/03/13-23:03:52.523047 7fb8b0195a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:03:52.523047 7fb8b0195a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:03:52.523048 7fb8b0195a80 Options.keep_log_file_num: 1000
+2021/03/13-23:03:52.523048 7fb8b0195a80 Options.recycle_log_file_num: 0
+2021/03/13-23:03:52.523049 7fb8b0195a80 Options.allow_fallocate: 1
+2021/03/13-23:03:52.523050 7fb8b0195a80 Options.allow_mmap_reads: 0
+2021/03/13-23:03:52.523050 7fb8b0195a80 Options.allow_mmap_writes: 0
+2021/03/13-23:03:52.523051 7fb8b0195a80 Options.use_direct_reads: 0
+2021/03/13-23:03:52.523051 7fb8b0195a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:03:52.523052 7fb8b0195a80 Options.create_missing_column_families: 0
+2021/03/13-23:03:52.523052 7fb8b0195a80 Options.db_log_dir:
+2021/03/13-23:03:52.523053 7fb8b0195a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:03:52.523053 7fb8b0195a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:03:52.523054 7fb8b0195a80 Options.max_subcompactions: 1
+2021/03/13-23:03:52.523055 7fb8b0195a80 Options.max_background_flushes: -1
+2021/03/13-23:03:52.523055 7fb8b0195a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:03:52.523056 7fb8b0195a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:03:52.523056 7fb8b0195a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:03:52.523057 7fb8b0195a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:03:52.523058 7fb8b0195a80 Options.advise_random_on_open: 1
+2021/03/13-23:03:52.523058 7fb8b0195a80 Options.db_write_buffer_size: 0
+2021/03/13-23:03:52.523059 7fb8b0195a80 Options.write_buffer_manager: 0x2610b90
+2021/03/13-23:03:52.523059 7fb8b0195a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:03:52.523060 7fb8b0195a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:03:52.523060 7fb8b0195a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:03:52.523061 7fb8b0195a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:03:52.523061 7fb8b0195a80 Options.rate_limiter: (nil)
+2021/03/13-23:03:52.523063 7fb8b0195a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:03:52.523070 7fb8b0195a80 Options.wal_recovery_mode: 2
+2021/03/13-23:03:52.523071 7fb8b0195a80 Options.enable_thread_tracking: 0
+2021/03/13-23:03:52.523072 7fb8b0195a80 Options.enable_pipelined_write: 0
+2021/03/13-23:03:52.523072 7fb8b0195a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:03:52.523073 7fb8b0195a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:03:52.523073 7fb8b0195a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:03:52.523074 7fb8b0195a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:03:52.523075 7fb8b0195a80 Options.row_cache: None
+2021/03/13-23:03:52.523075 7fb8b0195a80 Options.wal_filter: None
+2021/03/13-23:03:52.523076 7fb8b0195a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:03:52.523076 7fb8b0195a80 Options.allow_ingest_behind: 0
+2021/03/13-23:03:52.523077 7fb8b0195a80 Options.preserve_deletes: 0
+2021/03/13-23:03:52.523077 7fb8b0195a80 Options.two_write_queues: 0
+2021/03/13-23:03:52.523078 7fb8b0195a80 Options.manual_wal_flush: 0
+2021/03/13-23:03:52.523079 7fb8b0195a80 Options.max_background_jobs: 16
+2021/03/13-23:03:52.523080 7fb8b0195a80 Options.max_background_compactions: -1
+2021/03/13-23:03:52.523080 7fb8b0195a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:03:52.523081 7fb8b0195a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:03:52.523081 7fb8b0195a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:03:52.523082 7fb8b0195a80 Options.max_total_wal_size: 0
+2021/03/13-23:03:52.523083 7fb8b0195a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:03:52.523083 7fb8b0195a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:03:52.523084 7fb8b0195a80 Options.max_open_files: -1
+2021/03/13-23:03:52.523084 7fb8b0195a80 Options.bytes_per_sync: 0
+2021/03/13-23:03:52.523085 7fb8b0195a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:03:52.523085 7fb8b0195a80 Options.compaction_readahead_size: 0
+2021/03/13-23:03:52.523086 7fb8b0195a80 Compression algorithms supported:
+2021/03/13-23:03:52.523086 7fb8b0195a80 Snappy supported: 1
+2021/03/13-23:03:52.523087 7fb8b0195a80 Zlib supported: 1
+2021/03/13-23:03:52.523088 7fb8b0195a80 Bzip supported: 1
+2021/03/13-23:03:52.523088 7fb8b0195a80 LZ4 supported: 1
+2021/03/13-23:03:52.523089 7fb8b0195a80 ZSTDNotFinal supported: 1
+2021/03/13-23:03:52.523092 7fb8b0195a80 ZSTD supported: 1
+2021/03/13-23:03:52.523095 7fb8b0195a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:03:52.523097 7fb8b0195a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:03:52.523183 7fb8b0195a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:03:52.523235 7fb8b0195a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:03:52.523237 7fb8b0195a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:03:52.523253 7fb8b0195a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:03:52.523254 7fb8b0195a80 Options.compaction_filter: None
+2021/03/13-23:03:52.523254 7fb8b0195a80 Options.compaction_filter_factory: None
+2021/03/13-23:03:52.523255 7fb8b0195a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:03:52.523256 7fb8b0195a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:03:52.523269 7fb8b0195a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2620520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2605c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:03:52.523270 7fb8b0195a80 Options.write_buffer_size: 134217728
+2021/03/13-23:03:52.523271 7fb8b0195a80 Options.max_write_buffer_number: 6
+2021/03/13-23:03:52.523271 7fb8b0195a80 Options.compression[0]: NoCompression
+2021/03/13-23:03:52.523272 7fb8b0195a80 Options.compression[1]: NoCompression
+2021/03/13-23:03:52.523273 7fb8b0195a80 Options.compression[2]: Snappy
+2021/03/13-23:03:52.523273 7fb8b0195a80 Options.compression[3]: Snappy
+2021/03/13-23:03:52.523274 7fb8b0195a80 Options.compression[4]: Snappy
+2021/03/13-23:03:52.523274 7fb8b0195a80 Options.compression[5]: Snappy
+2021/03/13-23:03:52.523275 7fb8b0195a80 Options.compression[6]: Snappy
+2021/03/13-23:03:52.523275 7fb8b0195a80 Options.bottommost_compression: Disabled
+2021/03/13-23:03:52.523276 7fb8b0195a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:03:52.523277 7fb8b0195a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:03:52.523277 7fb8b0195a80 Options.num_levels: 7
+2021/03/13-23:03:52.523278 7fb8b0195a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:03:52.523278 7fb8b0195a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:03:52.523279 7fb8b0195a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:03:52.523280 7fb8b0195a80 Options.compression_opts.level: -1
+2021/03/13-23:03:52.523280 7fb8b0195a80 Options.compression_opts.strategy: 0
+2021/03/13-23:03:52.523281 7fb8b0195a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:03:52.523281 7fb8b0195a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:03:52.523282 7fb8b0195a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:03:52.523282 7fb8b0195a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:03:52.523283 7fb8b0195a80 Options.target_file_size_base: 67108864
+2021/03/13-23:03:52.523284 7fb8b0195a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:03:52.523284 7fb8b0195a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:03:52.523285 7fb8b0195a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:03:52.523285 7fb8b0195a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:03:52.523287 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:03:52.523296 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:03:52.523297 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:03:52.523297 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:03:52.523298 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:03:52.523298 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:03:52.523299 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:03:52.523299 7fb8b0195a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:03:52.523300 7fb8b0195a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:03:52.523301 7fb8b0195a80 Options.arena_block_size: 16777216
+2021/03/13-23:03:52.523301 7fb8b0195a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:03:52.523302 7fb8b0195a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:03:52.523302 7fb8b0195a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:03:52.523303 7fb8b0195a80 Options.disable_auto_compactions: 0
+2021/03/13-23:03:52.523304 7fb8b0195a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:03:52.523305 7fb8b0195a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:03:52.523306 7fb8b0195a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:03:52.523306 7fb8b0195a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:03:52.523307 7fb8b0195a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:03:52.523307 7fb8b0195a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:03:52.523308 7fb8b0195a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:03:52.523309 7fb8b0195a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:03:52.523309 7fb8b0195a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:03:52.523310 7fb8b0195a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:03:52.523310 7fb8b0195a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:03:52.523311 7fb8b0195a80 Options.table_properties_collectors:
+2021/03/13-23:03:52.523312 7fb8b0195a80 Options.inplace_update_support: 0
+2021/03/13-23:03:52.523312 7fb8b0195a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:03:52.523313 7fb8b0195a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:03:52.523314 7fb8b0195a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:03:52.523314 7fb8b0195a80 Options.bloom_locality: 0
+2021/03/13-23:03:52.523315 7fb8b0195a80 Options.max_successive_merges: 0
+2021/03/13-23:03:52.523315 7fb8b0195a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:03:52.523316 7fb8b0195a80 Options.paranoid_file_checks: 0
+2021/03/13-23:03:52.523316 7fb8b0195a80 Options.force_consistency_checks: 0
+2021/03/13-23:03:52.523317 7fb8b0195a80 Options.report_bg_io_stats: 0
+2021/03/13-23:03:52.523691 7fb8b0195a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:03:52.523694 7fb8b0195a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:03:52.523760 7fb8b0195a80 EVENT_LOG_v1 {"time_micros": 1615673032523750, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:03:52.523765 7fb8b0195a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:03:53.205890 7fb8b0195a80 EVENT_LOG_v1 {"time_micros": 1615673033205887, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615673038670370 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673038670370
new file mode 100644
index 0000000..8338c03
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673038670370
@@ -0,0 +1,186 @@
+2021/03/13-23:03:53.219904 7fb8b0195a80 RocksDB version: 5.11.3
+2021/03/13-23:03:53.219964 7fb8b0195a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:03:53.219965 7fb8b0195a80 Compile date Mar 13 2021
+2021/03/13-23:03:53.219970 7fb8b0195a80 DB SUMMARY
+2021/03/13-23:03:53.220015 7fb8b0195a80 CURRENT file: CURRENT
+2021/03/13-23:03:53.220016 7fb8b0195a80 IDENTITY file: IDENTITY
+2021/03/13-23:03:53.220021 7fb8b0195a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:03:53.220022 7fb8b0195a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:03:53.220023 7fb8b0195a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:03:53.220026 7fb8b0195a80 Options.error_if_exists: 0
+2021/03/13-23:03:53.220026 7fb8b0195a80 Options.create_if_missing: 1
+2021/03/13-23:03:53.220027 7fb8b0195a80 Options.paranoid_checks: 1
+2021/03/13-23:03:53.220028 7fb8b0195a80 Options.env: 0x7fb8b0b4f080
+2021/03/13-23:03:53.220028 7fb8b0195a80 Options.info_log: 0x2628ca0
+2021/03/13-23:03:53.220029 7fb8b0195a80 Options.max_file_opening_threads: 16
+2021/03/13-23:03:53.220029 7fb8b0195a80 Options.statistics: (nil)
+2021/03/13-23:03:53.220030 7fb8b0195a80 Options.use_fsync: 0
+2021/03/13-23:03:53.220031 7fb8b0195a80 Options.max_log_file_size: 0
+2021/03/13-23:03:53.220031 7fb8b0195a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:03:53.220032 7fb8b0195a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:03:53.220032 7fb8b0195a80 Options.keep_log_file_num: 1000
+2021/03/13-23:03:53.220033 7fb8b0195a80 Options.recycle_log_file_num: 0
+2021/03/13-23:03:53.220034 7fb8b0195a80 Options.allow_fallocate: 1
+2021/03/13-23:03:53.220034 7fb8b0195a80 Options.allow_mmap_reads: 0
+2021/03/13-23:03:53.220035 7fb8b0195a80 Options.allow_mmap_writes: 0
+2021/03/13-23:03:53.220035 7fb8b0195a80 Options.use_direct_reads: 0
+2021/03/13-23:03:53.220036 7fb8b0195a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:03:53.220036 7fb8b0195a80 Options.create_missing_column_families: 0
+2021/03/13-23:03:53.220037 7fb8b0195a80 Options.db_log_dir:
+2021/03/13-23:03:53.220038 7fb8b0195a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:03:53.220038 7fb8b0195a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:03:53.220039 7fb8b0195a80 Options.max_subcompactions: 1
+2021/03/13-23:03:53.220039 7fb8b0195a80 Options.max_background_flushes: -1
+2021/03/13-23:03:53.220040 7fb8b0195a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:03:53.220040 7fb8b0195a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:03:53.220041 7fb8b0195a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:03:53.220042 7fb8b0195a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:03:53.220042 7fb8b0195a80 Options.advise_random_on_open: 1
+2021/03/13-23:03:53.220043 7fb8b0195a80 Options.db_write_buffer_size: 0
+2021/03/13-23:03:53.220043 7fb8b0195a80 Options.write_buffer_manager: 0x2610b90
+2021/03/13-23:03:53.220044 7fb8b0195a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:03:53.220044 7fb8b0195a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:03:53.220045 7fb8b0195a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:03:53.220045 7fb8b0195a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:03:53.220046 7fb8b0195a80 Options.rate_limiter: (nil)
+2021/03/13-23:03:53.220048 7fb8b0195a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:03:53.220055 7fb8b0195a80 Options.wal_recovery_mode: 2
+2021/03/13-23:03:53.220056 7fb8b0195a80 Options.enable_thread_tracking: 0
+2021/03/13-23:03:53.220057 7fb8b0195a80 Options.enable_pipelined_write: 0
+2021/03/13-23:03:53.220057 7fb8b0195a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:03:53.220058 7fb8b0195a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:03:53.220058 7fb8b0195a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:03:53.220059 7fb8b0195a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:03:53.220059 7fb8b0195a80 Options.row_cache: None
+2021/03/13-23:03:53.220060 7fb8b0195a80 Options.wal_filter: None
+2021/03/13-23:03:53.220061 7fb8b0195a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:03:53.220061 7fb8b0195a80 Options.allow_ingest_behind: 0
+2021/03/13-23:03:53.220062 7fb8b0195a80 Options.preserve_deletes: 0
+2021/03/13-23:03:53.220062 7fb8b0195a80 Options.two_write_queues: 0
+2021/03/13-23:03:53.220063 7fb8b0195a80 Options.manual_wal_flush: 0
+2021/03/13-23:03:53.220064 7fb8b0195a80 Options.max_background_jobs: 16
+2021/03/13-23:03:53.220065 7fb8b0195a80 Options.max_background_compactions: -1
+2021/03/13-23:03:53.220065 7fb8b0195a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:03:53.220066 7fb8b0195a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:03:53.220066 7fb8b0195a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:03:53.220067 7fb8b0195a80 Options.max_total_wal_size: 0
+2021/03/13-23:03:53.220067 7fb8b0195a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:03:53.220068 7fb8b0195a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:03:53.220069 7fb8b0195a80 Options.max_open_files: -1
+2021/03/13-23:03:53.220069 7fb8b0195a80 Options.bytes_per_sync: 0
+2021/03/13-23:03:53.220070 7fb8b0195a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:03:53.220070 7fb8b0195a80 Options.compaction_readahead_size: 0
+2021/03/13-23:03:53.220071 7fb8b0195a80 Compression algorithms supported:
+2021/03/13-23:03:53.220071 7fb8b0195a80 Snappy supported: 1
+2021/03/13-23:03:53.220072 7fb8b0195a80 Zlib supported: 1
+2021/03/13-23:03:53.220072 7fb8b0195a80 Bzip supported: 1
+2021/03/13-23:03:53.220073 7fb8b0195a80 LZ4 supported: 1
+2021/03/13-23:03:53.220074 7fb8b0195a80 ZSTDNotFinal supported: 1
+2021/03/13-23:03:53.220077 7fb8b0195a80 ZSTD supported: 1
+2021/03/13-23:03:53.220080 7fb8b0195a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:03:53.220082 7fb8b0195a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:03:53.220166 7fb8b0195a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:03:53.220218 7fb8b0195a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:03:53.220220 7fb8b0195a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:03:53.220221 7fb8b0195a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:03:53.220221 7fb8b0195a80 Options.compaction_filter: None
+2021/03/13-23:03:53.220222 7fb8b0195a80 Options.compaction_filter_factory: None
+2021/03/13-23:03:53.220223 7fb8b0195a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:03:53.220224 7fb8b0195a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:03:53.220237 7fb8b0195a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2620520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2605c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:03:53.220242 7fb8b0195a80 Options.write_buffer_size: 134217728
+2021/03/13-23:03:53.220243 7fb8b0195a80 Options.max_write_buffer_number: 6
+2021/03/13-23:03:53.220244 7fb8b0195a80 Options.compression[0]: NoCompression
+2021/03/13-23:03:53.220245 7fb8b0195a80 Options.compression[1]: NoCompression
+2021/03/13-23:03:53.220246 7fb8b0195a80 Options.compression[2]: Snappy
+2021/03/13-23:03:53.220246 7fb8b0195a80 Options.compression[3]: Snappy
+2021/03/13-23:03:53.220247 7fb8b0195a80 Options.compression[4]: Snappy
+2021/03/13-23:03:53.220247 7fb8b0195a80 Options.compression[5]: Snappy
+2021/03/13-23:03:53.220248 7fb8b0195a80 Options.compression[6]: Snappy
+2021/03/13-23:03:53.220249 7fb8b0195a80 Options.bottommost_compression: Disabled
+2021/03/13-23:03:53.220249 7fb8b0195a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:03:53.220250 7fb8b0195a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:03:53.220251 7fb8b0195a80 Options.num_levels: 7
+2021/03/13-23:03:53.220251 7fb8b0195a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:03:53.220252 7fb8b0195a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:03:53.220252 7fb8b0195a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:03:53.220253 7fb8b0195a80 Options.compression_opts.level: -1
+2021/03/13-23:03:53.220253 7fb8b0195a80 Options.compression_opts.strategy: 0
+2021/03/13-23:03:53.220254 7fb8b0195a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:03:53.220255 7fb8b0195a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:03:53.220255 7fb8b0195a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:03:53.220256 7fb8b0195a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:03:53.220256 7fb8b0195a80 Options.target_file_size_base: 67108864
+2021/03/13-23:03:53.220257 7fb8b0195a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:03:53.220257 7fb8b0195a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:03:53.220258 7fb8b0195a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:03:53.220259 7fb8b0195a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:03:53.220260 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:03:53.220269 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:03:53.220269 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:03:53.220270 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:03:53.220270 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:03:53.220271 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:03:53.220272 7fb8b0195a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:03:53.220272 7fb8b0195a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:03:53.220273 7fb8b0195a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:03:53.220273 7fb8b0195a80 Options.arena_block_size: 16777216
+2021/03/13-23:03:53.220274 7fb8b0195a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:03:53.220275 7fb8b0195a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:03:53.220275 7fb8b0195a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:03:53.220276 7fb8b0195a80 Options.disable_auto_compactions: 0
+2021/03/13-23:03:53.220277 7fb8b0195a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:03:53.220278 7fb8b0195a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:03:53.220279 7fb8b0195a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:03:53.220279 7fb8b0195a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:03:53.220280 7fb8b0195a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:03:53.220280 7fb8b0195a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:03:53.220281 7fb8b0195a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:03:53.220282 7fb8b0195a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:03:53.220282 7fb8b0195a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:03:53.220283 7fb8b0195a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:03:53.220284 7fb8b0195a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:03:53.220284 7fb8b0195a80 Options.table_properties_collectors:
+2021/03/13-23:03:53.220285 7fb8b0195a80 Options.inplace_update_support: 0
+2021/03/13-23:03:53.220286 7fb8b0195a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:03:53.220286 7fb8b0195a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:03:53.220287 7fb8b0195a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:03:53.220288 7fb8b0195a80 Options.bloom_locality: 0
+2021/03/13-23:03:53.220288 7fb8b0195a80 Options.max_successive_merges: 0
+2021/03/13-23:03:53.220289 7fb8b0195a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:03:53.220289 7fb8b0195a80 Options.paranoid_file_checks: 0
+2021/03/13-23:03:53.220290 7fb8b0195a80 Options.force_consistency_checks: 0
+2021/03/13-23:03:53.220290 7fb8b0195a80 Options.report_bg_io_stats: 0
+2021/03/13-23:03:53.220703 7fb8b0195a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:03:53.220707 7fb8b0195a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:03:53.220774 7fb8b0195a80 EVENT_LOG_v1 {"time_micros": 1615673033220764, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:03:53.220779 7fb8b0195a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:03:53.902937 7fb8b0195a80 EVENT_LOG_v1 {"time_micros": 1615673033902934, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615673039391839 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673039391839
new file mode 100644
index 0000000..6820afc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673039391839
@@ -0,0 +1,186 @@
+2021/03/13-23:03:58.670724 7f202ecc8a80 RocksDB version: 5.11.3
+2021/03/13-23:03:58.670789 7f202ecc8a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:03:58.670791 7f202ecc8a80 Compile date Mar 13 2021
+2021/03/13-23:03:58.670796 7f202ecc8a80 DB SUMMARY
+2021/03/13-23:03:58.670845 7f202ecc8a80 CURRENT file: CURRENT
+2021/03/13-23:03:58.670846 7f202ecc8a80 IDENTITY file: IDENTITY
+2021/03/13-23:03:58.670851 7f202ecc8a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:03:58.670853 7f202ecc8a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:03:58.670853 7f202ecc8a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:03:58.670857 7f202ecc8a80 Options.error_if_exists: 0
+2021/03/13-23:03:58.670857 7f202ecc8a80 Options.create_if_missing: 1
+2021/03/13-23:03:58.670858 7f202ecc8a80 Options.paranoid_checks: 1
+2021/03/13-23:03:58.670859 7f202ecc8a80 Options.env: 0x7f202f682080
+2021/03/13-23:03:58.670860 7f202ecc8a80 Options.info_log: 0x1d48ca0
+2021/03/13-23:03:58.670860 7f202ecc8a80 Options.max_file_opening_threads: 16
+2021/03/13-23:03:58.670861 7f202ecc8a80 Options.statistics: (nil)
+2021/03/13-23:03:58.670862 7f202ecc8a80 Options.use_fsync: 0
+2021/03/13-23:03:58.670862 7f202ecc8a80 Options.max_log_file_size: 0
+2021/03/13-23:03:58.670863 7f202ecc8a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:03:58.670864 7f202ecc8a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:03:58.670864 7f202ecc8a80 Options.keep_log_file_num: 1000
+2021/03/13-23:03:58.670865 7f202ecc8a80 Options.recycle_log_file_num: 0
+2021/03/13-23:03:58.670866 7f202ecc8a80 Options.allow_fallocate: 1
+2021/03/13-23:03:58.670866 7f202ecc8a80 Options.allow_mmap_reads: 0
+2021/03/13-23:03:58.670867 7f202ecc8a80 Options.allow_mmap_writes: 0
+2021/03/13-23:03:58.670868 7f202ecc8a80 Options.use_direct_reads: 0
+2021/03/13-23:03:58.670868 7f202ecc8a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:03:58.670869 7f202ecc8a80 Options.create_missing_column_families: 0
+2021/03/13-23:03:58.670869 7f202ecc8a80 Options.db_log_dir:
+2021/03/13-23:03:58.670870 7f202ecc8a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:03:58.670871 7f202ecc8a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:03:58.670871 7f202ecc8a80 Options.max_subcompactions: 1
+2021/03/13-23:03:58.670872 7f202ecc8a80 Options.max_background_flushes: -1
+2021/03/13-23:03:58.670873 7f202ecc8a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:03:58.670873 7f202ecc8a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:03:58.670874 7f202ecc8a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:03:58.670875 7f202ecc8a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:03:58.670875 7f202ecc8a80 Options.advise_random_on_open: 1
+2021/03/13-23:03:58.670876 7f202ecc8a80 Options.db_write_buffer_size: 0
+2021/03/13-23:03:58.670876 7f202ecc8a80 Options.write_buffer_manager: 0x1d30b90
+2021/03/13-23:03:58.670877 7f202ecc8a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:03:58.670878 7f202ecc8a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:03:58.670878 7f202ecc8a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:03:58.670879 7f202ecc8a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:03:58.670880 7f202ecc8a80 Options.rate_limiter: (nil)
+2021/03/13-23:03:58.670881 7f202ecc8a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:03:58.670891 7f202ecc8a80 Options.wal_recovery_mode: 2
+2021/03/13-23:03:58.670892 7f202ecc8a80 Options.enable_thread_tracking: 0
+2021/03/13-23:03:58.670893 7f202ecc8a80 Options.enable_pipelined_write: 0
+2021/03/13-23:03:58.670893 7f202ecc8a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:03:58.670894 7f202ecc8a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:03:58.670894 7f202ecc8a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:03:58.670895 7f202ecc8a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:03:58.670896 7f202ecc8a80 Options.row_cache: None
+2021/03/13-23:03:58.670896 7f202ecc8a80 Options.wal_filter: None
+2021/03/13-23:03:58.670897 7f202ecc8a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:03:58.670898 7f202ecc8a80 Options.allow_ingest_behind: 0
+2021/03/13-23:03:58.670898 7f202ecc8a80 Options.preserve_deletes: 0
+2021/03/13-23:03:58.670899 7f202ecc8a80 Options.two_write_queues: 0
+2021/03/13-23:03:58.670899 7f202ecc8a80 Options.manual_wal_flush: 0
+2021/03/13-23:03:58.670901 7f202ecc8a80 Options.max_background_jobs: 16
+2021/03/13-23:03:58.670901 7f202ecc8a80 Options.max_background_compactions: -1
+2021/03/13-23:03:58.670902 7f202ecc8a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:03:58.670903 7f202ecc8a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:03:58.670903 7f202ecc8a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:03:58.670904 7f202ecc8a80 Options.max_total_wal_size: 0
+2021/03/13-23:03:58.670905 7f202ecc8a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:03:58.670905 7f202ecc8a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:03:58.670906 7f202ecc8a80 Options.max_open_files: -1
+2021/03/13-23:03:58.670907 7f202ecc8a80 Options.bytes_per_sync: 0
+2021/03/13-23:03:58.670907 7f202ecc8a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:03:58.670908 7f202ecc8a80 Options.compaction_readahead_size: 0
+2021/03/13-23:03:58.670909 7f202ecc8a80 Compression algorithms supported:
+2021/03/13-23:03:58.670909 7f202ecc8a80 Snappy supported: 1
+2021/03/13-23:03:58.670910 7f202ecc8a80 Zlib supported: 1
+2021/03/13-23:03:58.670911 7f202ecc8a80 Bzip supported: 1
+2021/03/13-23:03:58.670911 7f202ecc8a80 LZ4 supported: 1
+2021/03/13-23:03:58.670912 7f202ecc8a80 ZSTDNotFinal supported: 1
+2021/03/13-23:03:58.670916 7f202ecc8a80 ZSTD supported: 1
+2021/03/13-23:03:58.670919 7f202ecc8a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:03:58.670921 7f202ecc8a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:03:58.671026 7f202ecc8a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:03:58.671082 7f202ecc8a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:03:58.671084 7f202ecc8a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:03:58.671085 7f202ecc8a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:03:58.671086 7f202ecc8a80 Options.compaction_filter: None
+2021/03/13-23:03:58.671087 7f202ecc8a80 Options.compaction_filter_factory: None
+2021/03/13-23:03:58.671087 7f202ecc8a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:03:58.671088 7f202ecc8a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:03:58.671102 7f202ecc8a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d40520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1d25c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:03:58.671103 7f202ecc8a80 Options.write_buffer_size: 134217728
+2021/03/13-23:03:58.671104 7f202ecc8a80 Options.max_write_buffer_number: 6
+2021/03/13-23:03:58.671105 7f202ecc8a80 Options.compression[0]: NoCompression
+2021/03/13-23:03:58.671106 7f202ecc8a80 Options.compression[1]: NoCompression
+2021/03/13-23:03:58.671106 7f202ecc8a80 Options.compression[2]: Snappy
+2021/03/13-23:03:58.671107 7f202ecc8a80 Options.compression[3]: Snappy
+2021/03/13-23:03:58.671108 7f202ecc8a80 Options.compression[4]: Snappy
+2021/03/13-23:03:58.671108 7f202ecc8a80 Options.compression[5]: Snappy
+2021/03/13-23:03:58.671109 7f202ecc8a80 Options.compression[6]: Snappy
+2021/03/13-23:03:58.671110 7f202ecc8a80 Options.bottommost_compression: Disabled
+2021/03/13-23:03:58.671110 7f202ecc8a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:03:58.671111 7f202ecc8a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:03:58.671112 7f202ecc8a80 Options.num_levels: 7
+2021/03/13-23:03:58.671112 7f202ecc8a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:03:58.671113 7f202ecc8a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:03:58.671114 7f202ecc8a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:03:58.671114 7f202ecc8a80 Options.compression_opts.level: -1
+2021/03/13-23:03:58.671115 7f202ecc8a80 Options.compression_opts.strategy: 0
+2021/03/13-23:03:58.671116 7f202ecc8a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:03:58.671116 7f202ecc8a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:03:58.671117 7f202ecc8a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:03:58.671117 7f202ecc8a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:03:58.671118 7f202ecc8a80 Options.target_file_size_base: 67108864
+2021/03/13-23:03:58.671119 7f202ecc8a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:03:58.671119 7f202ecc8a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:03:58.671120 7f202ecc8a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:03:58.671121 7f202ecc8a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:03:58.671122 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:03:58.671131 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:03:58.671132 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:03:58.671132 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:03:58.671133 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:03:58.671134 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:03:58.671134 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:03:58.671135 7f202ecc8a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:03:58.671135 7f202ecc8a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:03:58.671136 7f202ecc8a80 Options.arena_block_size: 16777216
+2021/03/13-23:03:58.671137 7f202ecc8a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:03:58.671137 7f202ecc8a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:03:58.671138 7f202ecc8a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:03:58.671139 7f202ecc8a80 Options.disable_auto_compactions: 0
+2021/03/13-23:03:58.671141 7f202ecc8a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:03:58.671141 7f202ecc8a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:03:58.671142 7f202ecc8a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:03:58.671143 7f202ecc8a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:03:58.671143 7f202ecc8a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:03:58.671144 7f202ecc8a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:03:58.671145 7f202ecc8a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:03:58.671146 7f202ecc8a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:03:58.671146 7f202ecc8a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:03:58.671147 7f202ecc8a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:03:58.671147 7f202ecc8a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:03:58.671148 7f202ecc8a80 Options.table_properties_collectors:
+2021/03/13-23:03:58.671149 7f202ecc8a80 Options.inplace_update_support: 0
+2021/03/13-23:03:58.671149 7f202ecc8a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:03:58.671150 7f202ecc8a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:03:58.671151 7f202ecc8a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:03:58.671152 7f202ecc8a80 Options.bloom_locality: 0
+2021/03/13-23:03:58.671152 7f202ecc8a80 Options.max_successive_merges: 0
+2021/03/13-23:03:58.671153 7f202ecc8a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:03:58.671153 7f202ecc8a80 Options.paranoid_file_checks: 0
+2021/03/13-23:03:58.671154 7f202ecc8a80 Options.force_consistency_checks: 0
+2021/03/13-23:03:58.671155 7f202ecc8a80 Options.report_bg_io_stats: 0
+2021/03/13-23:03:58.671573 7f202ecc8a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:03:58.671576 7f202ecc8a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:03:58.671655 7f202ecc8a80 EVENT_LOG_v1 {"time_micros": 1615673038671643, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:03:58.671661 7f202ecc8a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:03:59.379196 7f202ecc8a80 EVENT_LOG_v1 {"time_micros": 1615673039379193, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615673040112163 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673040112163
new file mode 100644
index 0000000..28389e6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673040112163
@@ -0,0 +1,186 @@
+2021/03/13-23:03:59.392144 7f202ecc8a80 RocksDB version: 5.11.3
+2021/03/13-23:03:59.392200 7f202ecc8a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:03:59.392202 7f202ecc8a80 Compile date Mar 13 2021
+2021/03/13-23:03:59.392206 7f202ecc8a80 DB SUMMARY
+2021/03/13-23:03:59.392259 7f202ecc8a80 CURRENT file: CURRENT
+2021/03/13-23:03:59.392260 7f202ecc8a80 IDENTITY file: IDENTITY
+2021/03/13-23:03:59.392265 7f202ecc8a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:03:59.392266 7f202ecc8a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:03:59.392267 7f202ecc8a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:03:59.392270 7f202ecc8a80 Options.error_if_exists: 0
+2021/03/13-23:03:59.392270 7f202ecc8a80 Options.create_if_missing: 1
+2021/03/13-23:03:59.392271 7f202ecc8a80 Options.paranoid_checks: 1
+2021/03/13-23:03:59.392272 7f202ecc8a80 Options.env: 0x7f202f682080
+2021/03/13-23:03:59.392272 7f202ecc8a80 Options.info_log: 0x1d48ca0
+2021/03/13-23:03:59.392273 7f202ecc8a80 Options.max_file_opening_threads: 16
+2021/03/13-23:03:59.392273 7f202ecc8a80 Options.statistics: (nil)
+2021/03/13-23:03:59.392274 7f202ecc8a80 Options.use_fsync: 0
+2021/03/13-23:03:59.392275 7f202ecc8a80 Options.max_log_file_size: 0
+2021/03/13-23:03:59.392275 7f202ecc8a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:03:59.392276 7f202ecc8a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:03:59.392276 7f202ecc8a80 Options.keep_log_file_num: 1000
+2021/03/13-23:03:59.392277 7f202ecc8a80 Options.recycle_log_file_num: 0
+2021/03/13-23:03:59.392278 7f202ecc8a80 Options.allow_fallocate: 1
+2021/03/13-23:03:59.392278 7f202ecc8a80 Options.allow_mmap_reads: 0
+2021/03/13-23:03:59.392279 7f202ecc8a80 Options.allow_mmap_writes: 0
+2021/03/13-23:03:59.392279 7f202ecc8a80 Options.use_direct_reads: 0
+2021/03/13-23:03:59.392280 7f202ecc8a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:03:59.392280 7f202ecc8a80 Options.create_missing_column_families: 0
+2021/03/13-23:03:59.392281 7f202ecc8a80 Options.db_log_dir:
+2021/03/13-23:03:59.392281 7f202ecc8a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:03:59.392282 7f202ecc8a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:03:59.392283 7f202ecc8a80 Options.max_subcompactions: 1
+2021/03/13-23:03:59.392283 7f202ecc8a80 Options.max_background_flushes: -1
+2021/03/13-23:03:59.392284 7f202ecc8a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:03:59.392284 7f202ecc8a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:03:59.392285 7f202ecc8a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:03:59.392286 7f202ecc8a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:03:59.392286 7f202ecc8a80 Options.advise_random_on_open: 1
+2021/03/13-23:03:59.392287 7f202ecc8a80 Options.db_write_buffer_size: 0
+2021/03/13-23:03:59.392287 7f202ecc8a80 Options.write_buffer_manager: 0x1d30b90
+2021/03/13-23:03:59.392288 7f202ecc8a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:03:59.392288 7f202ecc8a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:03:59.392289 7f202ecc8a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:03:59.392289 7f202ecc8a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:03:59.392290 7f202ecc8a80 Options.rate_limiter: (nil)
+2021/03/13-23:03:59.392291 7f202ecc8a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:03:59.392300 7f202ecc8a80 Options.wal_recovery_mode: 2
+2021/03/13-23:03:59.392300 7f202ecc8a80 Options.enable_thread_tracking: 0
+2021/03/13-23:03:59.392301 7f202ecc8a80 Options.enable_pipelined_write: 0
+2021/03/13-23:03:59.392302 7f202ecc8a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:03:59.392302 7f202ecc8a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:03:59.392303 7f202ecc8a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:03:59.392303 7f202ecc8a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:03:59.392304 7f202ecc8a80 Options.row_cache: None
+2021/03/13-23:03:59.392304 7f202ecc8a80 Options.wal_filter: None
+2021/03/13-23:03:59.392305 7f202ecc8a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:03:59.392306 7f202ecc8a80 Options.allow_ingest_behind: 0
+2021/03/13-23:03:59.392306 7f202ecc8a80 Options.preserve_deletes: 0
+2021/03/13-23:03:59.392307 7f202ecc8a80 Options.two_write_queues: 0
+2021/03/13-23:03:59.392307 7f202ecc8a80 Options.manual_wal_flush: 0
+2021/03/13-23:03:59.392308 7f202ecc8a80 Options.max_background_jobs: 16
+2021/03/13-23:03:59.392309 7f202ecc8a80 Options.max_background_compactions: -1
+2021/03/13-23:03:59.392310 7f202ecc8a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:03:59.392310 7f202ecc8a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:03:59.392311 7f202ecc8a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:03:59.392311 7f202ecc8a80 Options.max_total_wal_size: 0
+2021/03/13-23:03:59.392312 7f202ecc8a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:03:59.392312 7f202ecc8a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:03:59.392313 7f202ecc8a80 Options.max_open_files: -1
+2021/03/13-23:03:59.392314 7f202ecc8a80 Options.bytes_per_sync: 0
+2021/03/13-23:03:59.392314 7f202ecc8a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:03:59.392315 7f202ecc8a80 Options.compaction_readahead_size: 0
+2021/03/13-23:03:59.392315 7f202ecc8a80 Compression algorithms supported:
+2021/03/13-23:03:59.392316 7f202ecc8a80 Snappy supported: 1
+2021/03/13-23:03:59.392316 7f202ecc8a80 Zlib supported: 1
+2021/03/13-23:03:59.392317 7f202ecc8a80 Bzip supported: 1
+2021/03/13-23:03:59.392317 7f202ecc8a80 LZ4 supported: 1
+2021/03/13-23:03:59.392318 7f202ecc8a80 ZSTDNotFinal supported: 1
+2021/03/13-23:03:59.392322 7f202ecc8a80 ZSTD supported: 1
+2021/03/13-23:03:59.392325 7f202ecc8a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:03:59.392326 7f202ecc8a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:03:59.392414 7f202ecc8a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:03:59.392464 7f202ecc8a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:03:59.392466 7f202ecc8a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:03:59.392467 7f202ecc8a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:03:59.392468 7f202ecc8a80 Options.compaction_filter: None
+2021/03/13-23:03:59.392468 7f202ecc8a80 Options.compaction_filter_factory: None
+2021/03/13-23:03:59.392469 7f202ecc8a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:03:59.392470 7f202ecc8a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:03:59.392483 7f202ecc8a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d40520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1d25c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:03:59.392484 7f202ecc8a80 Options.write_buffer_size: 134217728
+2021/03/13-23:03:59.392484 7f202ecc8a80 Options.max_write_buffer_number: 6
+2021/03/13-23:03:59.392485 7f202ecc8a80 Options.compression[0]: NoCompression
+2021/03/13-23:03:59.392486 7f202ecc8a80 Options.compression[1]: NoCompression
+2021/03/13-23:03:59.392486 7f202ecc8a80 Options.compression[2]: Snappy
+2021/03/13-23:03:59.392487 7f202ecc8a80 Options.compression[3]: Snappy
+2021/03/13-23:03:59.392487 7f202ecc8a80 Options.compression[4]: Snappy
+2021/03/13-23:03:59.392488 7f202ecc8a80 Options.compression[5]: Snappy
+2021/03/13-23:03:59.392488 7f202ecc8a80 Options.compression[6]: Snappy
+2021/03/13-23:03:59.392489 7f202ecc8a80 Options.bottommost_compression: Disabled
+2021/03/13-23:03:59.392490 7f202ecc8a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:03:59.392491 7f202ecc8a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:03:59.392491 7f202ecc8a80 Options.num_levels: 7
+2021/03/13-23:03:59.392492 7f202ecc8a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:03:59.392492 7f202ecc8a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:03:59.392493 7f202ecc8a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:03:59.392493 7f202ecc8a80 Options.compression_opts.level: -1
+2021/03/13-23:03:59.392494 7f202ecc8a80 Options.compression_opts.strategy: 0
+2021/03/13-23:03:59.392495 7f202ecc8a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:03:59.392495 7f202ecc8a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:03:59.392496 7f202ecc8a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:03:59.392496 7f202ecc8a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:03:59.392497 7f202ecc8a80 Options.target_file_size_base: 67108864
+2021/03/13-23:03:59.392497 7f202ecc8a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:03:59.392498 7f202ecc8a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:03:59.392499 7f202ecc8a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:03:59.392499 7f202ecc8a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:03:59.392501 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:03:59.392508 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:03:59.392509 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:03:59.392510 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:03:59.392510 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:03:59.392511 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:03:59.392511 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:03:59.392512 7f202ecc8a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:03:59.392512 7f202ecc8a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:03:59.392513 7f202ecc8a80 Options.arena_block_size: 16777216
+2021/03/13-23:03:59.392514 7f202ecc8a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:03:59.392514 7f202ecc8a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:03:59.392515 7f202ecc8a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:03:59.392515 7f202ecc8a80 Options.disable_auto_compactions: 0
+2021/03/13-23:03:59.392517 7f202ecc8a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:03:59.392517 7f202ecc8a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:03:59.392518 7f202ecc8a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:03:59.392519 7f202ecc8a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:03:59.392519 7f202ecc8a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:03:59.392520 7f202ecc8a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:03:59.392520 7f202ecc8a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:03:59.392521 7f202ecc8a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:03:59.392522 7f202ecc8a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:03:59.392522 7f202ecc8a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:03:59.392523 7f202ecc8a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:03:59.392523 7f202ecc8a80 Options.table_properties_collectors:
+2021/03/13-23:03:59.392524 7f202ecc8a80 Options.inplace_update_support: 0
+2021/03/13-23:03:59.392525 7f202ecc8a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:03:59.392525 7f202ecc8a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:03:59.392526 7f202ecc8a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:03:59.392527 7f202ecc8a80 Options.bloom_locality: 0
+2021/03/13-23:03:59.392527 7f202ecc8a80 Options.max_successive_merges: 0
+2021/03/13-23:03:59.392528 7f202ecc8a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:03:59.392528 7f202ecc8a80 Options.paranoid_file_checks: 0
+2021/03/13-23:03:59.392529 7f202ecc8a80 Options.force_consistency_checks: 0
+2021/03/13-23:03:59.392529 7f202ecc8a80 Options.report_bg_io_stats: 0
+2021/03/13-23:03:59.392909 7f202ecc8a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:03:59.392911 7f202ecc8a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:03:59.392981 7f202ecc8a80 EVENT_LOG_v1 {"time_micros": 1615673039392972, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:03:59.392986 7f202ecc8a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:04:00.099679 7f202ecc8a80 EVENT_LOG_v1 {"time_micros": 1615673040099675, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615673040823087 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673040823087
new file mode 100644
index 0000000..29ecd2f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615673040823087
@@ -0,0 +1,186 @@
+2021/03/13-23:04:00.112466 7f202ecc8a80 RocksDB version: 5.11.3
+2021/03/13-23:04:00.112522 7f202ecc8a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:04:00.112524 7f202ecc8a80 Compile date Mar 13 2021
+2021/03/13-23:04:00.112529 7f202ecc8a80 DB SUMMARY
+2021/03/13-23:04:00.112574 7f202ecc8a80 CURRENT file: CURRENT
+2021/03/13-23:04:00.112575 7f202ecc8a80 IDENTITY file: IDENTITY
+2021/03/13-23:04:00.112580 7f202ecc8a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:04:00.112581 7f202ecc8a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:04:00.112582 7f202ecc8a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:04:00.112585 7f202ecc8a80 Options.error_if_exists: 0
+2021/03/13-23:04:00.112585 7f202ecc8a80 Options.create_if_missing: 1
+2021/03/13-23:04:00.112586 7f202ecc8a80 Options.paranoid_checks: 1
+2021/03/13-23:04:00.112587 7f202ecc8a80 Options.env: 0x7f202f682080
+2021/03/13-23:04:00.112587 7f202ecc8a80 Options.info_log: 0x1d48ca0
+2021/03/13-23:04:00.112588 7f202ecc8a80 Options.max_file_opening_threads: 16
+2021/03/13-23:04:00.112588 7f202ecc8a80 Options.statistics: (nil)
+2021/03/13-23:04:00.112589 7f202ecc8a80 Options.use_fsync: 0
+2021/03/13-23:04:00.112590 7f202ecc8a80 Options.max_log_file_size: 0
+2021/03/13-23:04:00.112590 7f202ecc8a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:04:00.112591 7f202ecc8a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:04:00.112592 7f202ecc8a80 Options.keep_log_file_num: 1000
+2021/03/13-23:04:00.112592 7f202ecc8a80 Options.recycle_log_file_num: 0
+2021/03/13-23:04:00.112593 7f202ecc8a80 Options.allow_fallocate: 1
+2021/03/13-23:04:00.112593 7f202ecc8a80 Options.allow_mmap_reads: 0
+2021/03/13-23:04:00.112594 7f202ecc8a80 Options.allow_mmap_writes: 0
+2021/03/13-23:04:00.112594 7f202ecc8a80 Options.use_direct_reads: 0
+2021/03/13-23:04:00.112595 7f202ecc8a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:04:00.112596 7f202ecc8a80 Options.create_missing_column_families: 0
+2021/03/13-23:04:00.112596 7f202ecc8a80 Options.db_log_dir:
+2021/03/13-23:04:00.112597 7f202ecc8a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:04:00.112597 7f202ecc8a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:04:00.112598 7f202ecc8a80 Options.max_subcompactions: 1
+2021/03/13-23:04:00.112598 7f202ecc8a80 Options.max_background_flushes: -1
+2021/03/13-23:04:00.112599 7f202ecc8a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:04:00.112600 7f202ecc8a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:04:00.112600 7f202ecc8a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:04:00.112601 7f202ecc8a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:04:00.112601 7f202ecc8a80 Options.advise_random_on_open: 1
+2021/03/13-23:04:00.112602 7f202ecc8a80 Options.db_write_buffer_size: 0
+2021/03/13-23:04:00.112602 7f202ecc8a80 Options.write_buffer_manager: 0x1d30b90
+2021/03/13-23:04:00.112603 7f202ecc8a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:04:00.112604 7f202ecc8a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:04:00.112604 7f202ecc8a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:04:00.112605 7f202ecc8a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:04:00.112605 7f202ecc8a80 Options.rate_limiter: (nil)
+2021/03/13-23:04:00.112607 7f202ecc8a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:04:00.112614 7f202ecc8a80 Options.wal_recovery_mode: 2
+2021/03/13-23:04:00.112615 7f202ecc8a80 Options.enable_thread_tracking: 0
+2021/03/13-23:04:00.112616 7f202ecc8a80 Options.enable_pipelined_write: 0
+2021/03/13-23:04:00.112616 7f202ecc8a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:04:00.112617 7f202ecc8a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:04:00.112617 7f202ecc8a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:04:00.112618 7f202ecc8a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:04:00.112618 7f202ecc8a80 Options.row_cache: None
+2021/03/13-23:04:00.112619 7f202ecc8a80 Options.wal_filter: None
+2021/03/13-23:04:00.112620 7f202ecc8a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:04:00.112620 7f202ecc8a80 Options.allow_ingest_behind: 0
+2021/03/13-23:04:00.112621 7f202ecc8a80 Options.preserve_deletes: 0
+2021/03/13-23:04:00.112621 7f202ecc8a80 Options.two_write_queues: 0
+2021/03/13-23:04:00.112622 7f202ecc8a80 Options.manual_wal_flush: 0
+2021/03/13-23:04:00.112623 7f202ecc8a80 Options.max_background_jobs: 16
+2021/03/13-23:04:00.112624 7f202ecc8a80 Options.max_background_compactions: -1
+2021/03/13-23:04:00.112624 7f202ecc8a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:04:00.112625 7f202ecc8a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:04:00.112625 7f202ecc8a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:04:00.112626 7f202ecc8a80 Options.max_total_wal_size: 0
+2021/03/13-23:04:00.112627 7f202ecc8a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:04:00.112627 7f202ecc8a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:04:00.112628 7f202ecc8a80 Options.max_open_files: -1
+2021/03/13-23:04:00.112628 7f202ecc8a80 Options.bytes_per_sync: 0
+2021/03/13-23:04:00.112629 7f202ecc8a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:04:00.112629 7f202ecc8a80 Options.compaction_readahead_size: 0
+2021/03/13-23:04:00.112630 7f202ecc8a80 Compression algorithms supported:
+2021/03/13-23:04:00.112631 7f202ecc8a80 Snappy supported: 1
+2021/03/13-23:04:00.112631 7f202ecc8a80 Zlib supported: 1
+2021/03/13-23:04:00.112632 7f202ecc8a80 Bzip supported: 1
+2021/03/13-23:04:00.112632 7f202ecc8a80 LZ4 supported: 1
+2021/03/13-23:04:00.112633 7f202ecc8a80 ZSTDNotFinal supported: 1
+2021/03/13-23:04:00.112637 7f202ecc8a80 ZSTD supported: 1
+2021/03/13-23:04:00.112640 7f202ecc8a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:04:00.112641 7f202ecc8a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:04:00.112730 7f202ecc8a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:04:00.112781 7f202ecc8a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:04:00.112783 7f202ecc8a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:04:00.112783 7f202ecc8a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:04:00.112784 7f202ecc8a80 Options.compaction_filter: None
+2021/03/13-23:04:00.112785 7f202ecc8a80 Options.compaction_filter_factory: None
+2021/03/13-23:04:00.112785 7f202ecc8a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:04:00.112786 7f202ecc8a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:04:00.112799 7f202ecc8a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d40520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1d25c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:04:00.112800 7f202ecc8a80 Options.write_buffer_size: 134217728
+2021/03/13-23:04:00.112801 7f202ecc8a80 Options.max_write_buffer_number: 6
+2021/03/13-23:04:00.112801 7f202ecc8a80 Options.compression[0]: NoCompression
+2021/03/13-23:04:00.112802 7f202ecc8a80 Options.compression[1]: NoCompression
+2021/03/13-23:04:00.112803 7f202ecc8a80 Options.compression[2]: Snappy
+2021/03/13-23:04:00.112803 7f202ecc8a80 Options.compression[3]: Snappy
+2021/03/13-23:04:00.112804 7f202ecc8a80 Options.compression[4]: Snappy
+2021/03/13-23:04:00.112805 7f202ecc8a80 Options.compression[5]: Snappy
+2021/03/13-23:04:00.112805 7f202ecc8a80 Options.compression[6]: Snappy
+2021/03/13-23:04:00.112806 7f202ecc8a80 Options.bottommost_compression: Disabled
+2021/03/13-23:04:00.112807 7f202ecc8a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:04:00.112807 7f202ecc8a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:04:00.112808 7f202ecc8a80 Options.num_levels: 7
+2021/03/13-23:04:00.112808 7f202ecc8a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:04:00.112809 7f202ecc8a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:04:00.112809 7f202ecc8a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:04:00.112810 7f202ecc8a80 Options.compression_opts.level: -1
+2021/03/13-23:04:00.112811 7f202ecc8a80 Options.compression_opts.strategy: 0
+2021/03/13-23:04:00.112811 7f202ecc8a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:04:00.112812 7f202ecc8a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:04:00.112812 7f202ecc8a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:04:00.112813 7f202ecc8a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:04:00.112814 7f202ecc8a80 Options.target_file_size_base: 67108864
+2021/03/13-23:04:00.112814 7f202ecc8a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:04:00.112815 7f202ecc8a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:04:00.112815 7f202ecc8a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:04:00.112816 7f202ecc8a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:04:00.112817 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:04:00.112825 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:04:00.112826 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:04:00.112826 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:04:00.112827 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:04:00.112828 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:04:00.112828 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:04:00.112829 7f202ecc8a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:04:00.112829 7f202ecc8a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:04:00.112830 7f202ecc8a80 Options.arena_block_size: 16777216
+2021/03/13-23:04:00.112831 7f202ecc8a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:04:00.112831 7f202ecc8a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:04:00.112832 7f202ecc8a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:04:00.112832 7f202ecc8a80 Options.disable_auto_compactions: 0
+2021/03/13-23:04:00.112834 7f202ecc8a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:04:00.112835 7f202ecc8a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:04:00.112835 7f202ecc8a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:04:00.112836 7f202ecc8a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:04:00.112836 7f202ecc8a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:04:00.112837 7f202ecc8a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:04:00.112838 7f202ecc8a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:04:00.112838 7f202ecc8a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:04:00.112839 7f202ecc8a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:04:00.112840 7f202ecc8a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:04:00.112840 7f202ecc8a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:04:00.112841 7f202ecc8a80 Options.table_properties_collectors:
+2021/03/13-23:04:00.112841 7f202ecc8a80 Options.inplace_update_support: 0
+2021/03/13-23:04:00.112842 7f202ecc8a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:04:00.112842 7f202ecc8a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:04:00.112843 7f202ecc8a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:04:00.112844 7f202ecc8a80 Options.bloom_locality: 0
+2021/03/13-23:04:00.112844 7f202ecc8a80 Options.max_successive_merges: 0
+2021/03/13-23:04:00.112845 7f202ecc8a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:04:00.112846 7f202ecc8a80 Options.paranoid_file_checks: 0
+2021/03/13-23:04:00.112846 7f202ecc8a80 Options.force_consistency_checks: 0
+2021/03/13-23:04:00.112847 7f202ecc8a80 Options.report_bg_io_stats: 0
+2021/03/13-23:04:00.113218 7f202ecc8a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:04:00.113220 7f202ecc8a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:04:00.113296 7f202ecc8a80 EVENT_LOG_v1 {"time_micros": 1615673040113285, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:04:00.113301 7f202ecc8a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:04:00.809704 7f202ecc8a80 EVENT_LOG_v1 {"time_micros": 1615673040809700, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674172335819 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674172335819
new file mode 100644
index 0000000..b6b3f6d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674172335819
@@ -0,0 +1,186 @@
+2021/03/13-23:04:00.823450 7f202ecc8a80 RocksDB version: 5.11.3
+2021/03/13-23:04:00.823509 7f202ecc8a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:04:00.823511 7f202ecc8a80 Compile date Mar 13 2021
+2021/03/13-23:04:00.823516 7f202ecc8a80 DB SUMMARY
+2021/03/13-23:04:00.823565 7f202ecc8a80 CURRENT file: CURRENT
+2021/03/13-23:04:00.823566 7f202ecc8a80 IDENTITY file: IDENTITY
+2021/03/13-23:04:00.823570 7f202ecc8a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:04:00.823572 7f202ecc8a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:04:00.823572 7f202ecc8a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:04:00.823575 7f202ecc8a80 Options.error_if_exists: 0
+2021/03/13-23:04:00.823576 7f202ecc8a80 Options.create_if_missing: 1
+2021/03/13-23:04:00.823577 7f202ecc8a80 Options.paranoid_checks: 1
+2021/03/13-23:04:00.823577 7f202ecc8a80 Options.env: 0x7f202f682080
+2021/03/13-23:04:00.823578 7f202ecc8a80 Options.info_log: 0x1d48ca0
+2021/03/13-23:04:00.823579 7f202ecc8a80 Options.max_file_opening_threads: 16
+2021/03/13-23:04:00.823579 7f202ecc8a80 Options.statistics: (nil)
+2021/03/13-23:04:00.823580 7f202ecc8a80 Options.use_fsync: 0
+2021/03/13-23:04:00.823580 7f202ecc8a80 Options.max_log_file_size: 0
+2021/03/13-23:04:00.823581 7f202ecc8a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:04:00.823582 7f202ecc8a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:04:00.823582 7f202ecc8a80 Options.keep_log_file_num: 1000
+2021/03/13-23:04:00.823583 7f202ecc8a80 Options.recycle_log_file_num: 0
+2021/03/13-23:04:00.823584 7f202ecc8a80 Options.allow_fallocate: 1
+2021/03/13-23:04:00.823584 7f202ecc8a80 Options.allow_mmap_reads: 0
+2021/03/13-23:04:00.823585 7f202ecc8a80 Options.allow_mmap_writes: 0
+2021/03/13-23:04:00.823585 7f202ecc8a80 Options.use_direct_reads: 0
+2021/03/13-23:04:00.823586 7f202ecc8a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:04:00.823586 7f202ecc8a80 Options.create_missing_column_families: 0
+2021/03/13-23:04:00.823587 7f202ecc8a80 Options.db_log_dir:
+2021/03/13-23:04:00.823587 7f202ecc8a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:04:00.823588 7f202ecc8a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:04:00.823589 7f202ecc8a80 Options.max_subcompactions: 1
+2021/03/13-23:04:00.823589 7f202ecc8a80 Options.max_background_flushes: -1
+2021/03/13-23:04:00.823590 7f202ecc8a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:04:00.823590 7f202ecc8a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:04:00.823591 7f202ecc8a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:04:00.823592 7f202ecc8a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:04:00.823592 7f202ecc8a80 Options.advise_random_on_open: 1
+2021/03/13-23:04:00.823593 7f202ecc8a80 Options.db_write_buffer_size: 0
+2021/03/13-23:04:00.823593 7f202ecc8a80 Options.write_buffer_manager: 0x1d30b90
+2021/03/13-23:04:00.823594 7f202ecc8a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:04:00.823595 7f202ecc8a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:04:00.823595 7f202ecc8a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:04:00.823596 7f202ecc8a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:04:00.823596 7f202ecc8a80 Options.rate_limiter: (nil)
+2021/03/13-23:04:00.823598 7f202ecc8a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:04:00.823605 7f202ecc8a80 Options.wal_recovery_mode: 2
+2021/03/13-23:04:00.823606 7f202ecc8a80 Options.enable_thread_tracking: 0
+2021/03/13-23:04:00.823607 7f202ecc8a80 Options.enable_pipelined_write: 0
+2021/03/13-23:04:00.823607 7f202ecc8a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:04:00.823608 7f202ecc8a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:04:00.823608 7f202ecc8a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:04:00.823609 7f202ecc8a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:04:00.823610 7f202ecc8a80 Options.row_cache: None
+2021/03/13-23:04:00.823610 7f202ecc8a80 Options.wal_filter: None
+2021/03/13-23:04:00.823611 7f202ecc8a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:04:00.823611 7f202ecc8a80 Options.allow_ingest_behind: 0
+2021/03/13-23:04:00.823612 7f202ecc8a80 Options.preserve_deletes: 0
+2021/03/13-23:04:00.823612 7f202ecc8a80 Options.two_write_queues: 0
+2021/03/13-23:04:00.823613 7f202ecc8a80 Options.manual_wal_flush: 0
+2021/03/13-23:04:00.823614 7f202ecc8a80 Options.max_background_jobs: 16
+2021/03/13-23:04:00.823615 7f202ecc8a80 Options.max_background_compactions: -1
+2021/03/13-23:04:00.823615 7f202ecc8a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:04:00.823616 7f202ecc8a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:04:00.823616 7f202ecc8a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:04:00.823617 7f202ecc8a80 Options.max_total_wal_size: 0
+2021/03/13-23:04:00.823618 7f202ecc8a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:04:00.823618 7f202ecc8a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:04:00.823619 7f202ecc8a80 Options.max_open_files: -1
+2021/03/13-23:04:00.823619 7f202ecc8a80 Options.bytes_per_sync: 0
+2021/03/13-23:04:00.823620 7f202ecc8a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:04:00.823621 7f202ecc8a80 Options.compaction_readahead_size: 0
+2021/03/13-23:04:00.823621 7f202ecc8a80 Compression algorithms supported:
+2021/03/13-23:04:00.823622 7f202ecc8a80 Snappy supported: 1
+2021/03/13-23:04:00.823622 7f202ecc8a80 Zlib supported: 1
+2021/03/13-23:04:00.823623 7f202ecc8a80 Bzip supported: 1
+2021/03/13-23:04:00.823623 7f202ecc8a80 LZ4 supported: 1
+2021/03/13-23:04:00.823624 7f202ecc8a80 ZSTDNotFinal supported: 1
+2021/03/13-23:04:00.823628 7f202ecc8a80 ZSTD supported: 1
+2021/03/13-23:04:00.823631 7f202ecc8a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:04:00.823632 7f202ecc8a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:04:00.823723 7f202ecc8a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:04:00.823774 7f202ecc8a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:04:00.823776 7f202ecc8a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:04:00.823777 7f202ecc8a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:04:00.823777 7f202ecc8a80 Options.compaction_filter: None
+2021/03/13-23:04:00.823778 7f202ecc8a80 Options.compaction_filter_factory: None
+2021/03/13-23:04:00.823779 7f202ecc8a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:04:00.823780 7f202ecc8a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:04:00.823793 7f202ecc8a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d40520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1d25c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:04:00.823794 7f202ecc8a80 Options.write_buffer_size: 134217728
+2021/03/13-23:04:00.823794 7f202ecc8a80 Options.max_write_buffer_number: 6
+2021/03/13-23:04:00.823795 7f202ecc8a80 Options.compression[0]: NoCompression
+2021/03/13-23:04:00.823796 7f202ecc8a80 Options.compression[1]: NoCompression
+2021/03/13-23:04:00.823797 7f202ecc8a80 Options.compression[2]: Snappy
+2021/03/13-23:04:00.823797 7f202ecc8a80 Options.compression[3]: Snappy
+2021/03/13-23:04:00.823798 7f202ecc8a80 Options.compression[4]: Snappy
+2021/03/13-23:04:00.823798 7f202ecc8a80 Options.compression[5]: Snappy
+2021/03/13-23:04:00.823799 7f202ecc8a80 Options.compression[6]: Snappy
+2021/03/13-23:04:00.823799 7f202ecc8a80 Options.bottommost_compression: Disabled
+2021/03/13-23:04:00.823800 7f202ecc8a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:04:00.823801 7f202ecc8a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:04:00.823801 7f202ecc8a80 Options.num_levels: 7
+2021/03/13-23:04:00.823802 7f202ecc8a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:04:00.823803 7f202ecc8a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:04:00.823803 7f202ecc8a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:04:00.823804 7f202ecc8a80 Options.compression_opts.level: -1
+2021/03/13-23:04:00.823804 7f202ecc8a80 Options.compression_opts.strategy: 0
+2021/03/13-23:04:00.823805 7f202ecc8a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:04:00.823805 7f202ecc8a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:04:00.823806 7f202ecc8a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:04:00.823807 7f202ecc8a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:04:00.823807 7f202ecc8a80 Options.target_file_size_base: 67108864
+2021/03/13-23:04:00.823808 7f202ecc8a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:04:00.823808 7f202ecc8a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:04:00.823809 7f202ecc8a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:04:00.823809 7f202ecc8a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:04:00.823811 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:04:00.823818 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:04:00.823819 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:04:00.823820 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:04:00.823820 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:04:00.823821 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:04:00.823821 7f202ecc8a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:04:00.823822 7f202ecc8a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:04:00.823823 7f202ecc8a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:04:00.823823 7f202ecc8a80 Options.arena_block_size: 16777216
+2021/03/13-23:04:00.823824 7f202ecc8a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:04:00.823824 7f202ecc8a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:04:00.823825 7f202ecc8a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:04:00.823825 7f202ecc8a80 Options.disable_auto_compactions: 0
+2021/03/13-23:04:00.823827 7f202ecc8a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:04:00.823828 7f202ecc8a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:04:00.823828 7f202ecc8a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:04:00.823829 7f202ecc8a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:04:00.823829 7f202ecc8a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:04:00.823830 7f202ecc8a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:04:00.823831 7f202ecc8a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:04:00.823832 7f202ecc8a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:04:00.823832 7f202ecc8a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:04:00.823833 7f202ecc8a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:04:00.823833 7f202ecc8a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:04:00.823834 7f202ecc8a80 Options.table_properties_collectors:
+2021/03/13-23:04:00.823835 7f202ecc8a80 Options.inplace_update_support: 0
+2021/03/13-23:04:00.823835 7f202ecc8a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:04:00.823836 7f202ecc8a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:04:00.823837 7f202ecc8a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:04:00.823837 7f202ecc8a80 Options.bloom_locality: 0
+2021/03/13-23:04:00.823838 7f202ecc8a80 Options.max_successive_merges: 0
+2021/03/13-23:04:00.823838 7f202ecc8a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:04:00.823839 7f202ecc8a80 Options.paranoid_file_checks: 0
+2021/03/13-23:04:00.823839 7f202ecc8a80 Options.force_consistency_checks: 0
+2021/03/13-23:04:00.823840 7f202ecc8a80 Options.report_bg_io_stats: 0
+2021/03/13-23:04:00.824204 7f202ecc8a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:04:00.824206 7f202ecc8a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:04:00.824282 7f202ecc8a80 EVENT_LOG_v1 {"time_micros": 1615673040824272, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:04:00.824288 7f202ecc8a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:04:01.511934 7f202ecc8a80 EVENT_LOG_v1 {"time_micros": 1615673041511931, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674173057776 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674173057776
new file mode 100644
index 0000000..85851cb
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674173057776
@@ -0,0 +1,186 @@
+2021/03/13-23:22:52.336144 7f4dbd012a80 RocksDB version: 5.11.3
+2021/03/13-23:22:52.336205 7f4dbd012a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:22:52.336207 7f4dbd012a80 Compile date Mar 13 2021
+2021/03/13-23:22:52.336209 7f4dbd012a80 DB SUMMARY
+2021/03/13-23:22:52.336267 7f4dbd012a80 CURRENT file: CURRENT
+2021/03/13-23:22:52.336268 7f4dbd012a80 IDENTITY file: IDENTITY
+2021/03/13-23:22:52.336273 7f4dbd012a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:22:52.336275 7f4dbd012a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:22:52.336276 7f4dbd012a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:22:52.336279 7f4dbd012a80 Options.error_if_exists: 0
+2021/03/13-23:22:52.336279 7f4dbd012a80 Options.create_if_missing: 1
+2021/03/13-23:22:52.336280 7f4dbd012a80 Options.paranoid_checks: 1
+2021/03/13-23:22:52.336281 7f4dbd012a80 Options.env: 0x7f4dbd9cc080
+2021/03/13-23:22:52.336281 7f4dbd012a80 Options.info_log: 0x1f46ca0
+2021/03/13-23:22:52.336282 7f4dbd012a80 Options.max_file_opening_threads: 16
+2021/03/13-23:22:52.336283 7f4dbd012a80 Options.statistics: (nil)
+2021/03/13-23:22:52.336284 7f4dbd012a80 Options.use_fsync: 0
+2021/03/13-23:22:52.336284 7f4dbd012a80 Options.max_log_file_size: 0
+2021/03/13-23:22:52.336285 7f4dbd012a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:22:52.336285 7f4dbd012a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:22:52.336286 7f4dbd012a80 Options.keep_log_file_num: 1000
+2021/03/13-23:22:52.336287 7f4dbd012a80 Options.recycle_log_file_num: 0
+2021/03/13-23:22:52.336287 7f4dbd012a80 Options.allow_fallocate: 1
+2021/03/13-23:22:52.336288 7f4dbd012a80 Options.allow_mmap_reads: 0
+2021/03/13-23:22:52.336289 7f4dbd012a80 Options.allow_mmap_writes: 0
+2021/03/13-23:22:52.336289 7f4dbd012a80 Options.use_direct_reads: 0
+2021/03/13-23:22:52.336290 7f4dbd012a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:22:52.336290 7f4dbd012a80 Options.create_missing_column_families: 0
+2021/03/13-23:22:52.336291 7f4dbd012a80 Options.db_log_dir:
+2021/03/13-23:22:52.336291 7f4dbd012a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:22:52.336292 7f4dbd012a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:22:52.336293 7f4dbd012a80 Options.max_subcompactions: 1
+2021/03/13-23:22:52.336293 7f4dbd012a80 Options.max_background_flushes: -1
+2021/03/13-23:22:52.336294 7f4dbd012a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:22:52.336295 7f4dbd012a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:22:52.336295 7f4dbd012a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:22:52.336296 7f4dbd012a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:22:52.336296 7f4dbd012a80 Options.advise_random_on_open: 1
+2021/03/13-23:22:52.336297 7f4dbd012a80 Options.db_write_buffer_size: 0
+2021/03/13-23:22:52.336298 7f4dbd012a80 Options.write_buffer_manager: 0x1f2eb90
+2021/03/13-23:22:52.336298 7f4dbd012a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:22:52.336299 7f4dbd012a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:22:52.336299 7f4dbd012a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:22:52.336300 7f4dbd012a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:22:52.336301 7f4dbd012a80 Options.rate_limiter: (nil)
+2021/03/13-23:22:52.336302 7f4dbd012a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:22:52.336310 7f4dbd012a80 Options.wal_recovery_mode: 2
+2021/03/13-23:22:52.336311 7f4dbd012a80 Options.enable_thread_tracking: 0
+2021/03/13-23:22:52.336312 7f4dbd012a80 Options.enable_pipelined_write: 0
+2021/03/13-23:22:52.336312 7f4dbd012a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:22:52.336313 7f4dbd012a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:22:52.336314 7f4dbd012a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:22:52.336314 7f4dbd012a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:22:52.336315 7f4dbd012a80 Options.row_cache: None
+2021/03/13-23:22:52.336315 7f4dbd012a80 Options.wal_filter: None
+2021/03/13-23:22:52.336316 7f4dbd012a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:22:52.336317 7f4dbd012a80 Options.allow_ingest_behind: 0
+2021/03/13-23:22:52.336317 7f4dbd012a80 Options.preserve_deletes: 0
+2021/03/13-23:22:52.336318 7f4dbd012a80 Options.two_write_queues: 0
+2021/03/13-23:22:52.336318 7f4dbd012a80 Options.manual_wal_flush: 0
+2021/03/13-23:22:52.336320 7f4dbd012a80 Options.max_background_jobs: 16
+2021/03/13-23:22:52.336320 7f4dbd012a80 Options.max_background_compactions: -1
+2021/03/13-23:22:52.336321 7f4dbd012a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:22:52.336322 7f4dbd012a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:22:52.336322 7f4dbd012a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:22:52.336323 7f4dbd012a80 Options.max_total_wal_size: 0
+2021/03/13-23:22:52.336323 7f4dbd012a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:22:52.336324 7f4dbd012a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:22:52.336325 7f4dbd012a80 Options.max_open_files: -1
+2021/03/13-23:22:52.336325 7f4dbd012a80 Options.bytes_per_sync: 0
+2021/03/13-23:22:52.336326 7f4dbd012a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:22:52.336326 7f4dbd012a80 Options.compaction_readahead_size: 0
+2021/03/13-23:22:52.336327 7f4dbd012a80 Compression algorithms supported:
+2021/03/13-23:22:52.336328 7f4dbd012a80 Snappy supported: 1
+2021/03/13-23:22:52.336328 7f4dbd012a80 Zlib supported: 1
+2021/03/13-23:22:52.336329 7f4dbd012a80 Bzip supported: 1
+2021/03/13-23:22:52.336330 7f4dbd012a80 LZ4 supported: 1
+2021/03/13-23:22:52.336330 7f4dbd012a80 ZSTDNotFinal supported: 1
+2021/03/13-23:22:52.336335 7f4dbd012a80 ZSTD supported: 1
+2021/03/13-23:22:52.336338 7f4dbd012a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:22:52.336339 7f4dbd012a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:22:52.336442 7f4dbd012a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:22:52.336500 7f4dbd012a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:22:52.336502 7f4dbd012a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:22:52.336503 7f4dbd012a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:22:52.336503 7f4dbd012a80 Options.compaction_filter: None
+2021/03/13-23:22:52.336504 7f4dbd012a80 Options.compaction_filter_factory: None
+2021/03/13-23:22:52.336505 7f4dbd012a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:22:52.336506 7f4dbd012a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:22:52.336520 7f4dbd012a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1f3e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1f23c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:22:52.336521 7f4dbd012a80 Options.write_buffer_size: 134217728
+2021/03/13-23:22:52.336521 7f4dbd012a80 Options.max_write_buffer_number: 6
+2021/03/13-23:22:52.336522 7f4dbd012a80 Options.compression[0]: NoCompression
+2021/03/13-23:22:52.336523 7f4dbd012a80 Options.compression[1]: NoCompression
+2021/03/13-23:22:52.336523 7f4dbd012a80 Options.compression[2]: Snappy
+2021/03/13-23:22:52.336524 7f4dbd012a80 Options.compression[3]: Snappy
+2021/03/13-23:22:52.336525 7f4dbd012a80 Options.compression[4]: Snappy
+2021/03/13-23:22:52.336525 7f4dbd012a80 Options.compression[5]: Snappy
+2021/03/13-23:22:52.336526 7f4dbd012a80 Options.compression[6]: Snappy
+2021/03/13-23:22:52.336527 7f4dbd012a80 Options.bottommost_compression: Disabled
+2021/03/13-23:22:52.336527 7f4dbd012a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:22:52.336528 7f4dbd012a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:22:52.336529 7f4dbd012a80 Options.num_levels: 7
+2021/03/13-23:22:52.336529 7f4dbd012a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:22:52.336530 7f4dbd012a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:22:52.336530 7f4dbd012a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:22:52.336531 7f4dbd012a80 Options.compression_opts.level: -1
+2021/03/13-23:22:52.336532 7f4dbd012a80 Options.compression_opts.strategy: 0
+2021/03/13-23:22:52.336532 7f4dbd012a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:22:52.336533 7f4dbd012a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:22:52.336533 7f4dbd012a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:22:52.336534 7f4dbd012a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:22:52.336535 7f4dbd012a80 Options.target_file_size_base: 67108864
+2021/03/13-23:22:52.336535 7f4dbd012a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:22:52.336536 7f4dbd012a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:22:52.336537 7f4dbd012a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:22:52.336537 7f4dbd012a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:22:52.336539 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:22:52.336547 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:22:52.336548 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:22:52.336548 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:22:52.336549 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:22:52.336550 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:22:52.336550 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:22:52.336551 7f4dbd012a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:22:52.336551 7f4dbd012a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:22:52.336552 7f4dbd012a80 Options.arena_block_size: 16777216
+2021/03/13-23:22:52.336553 7f4dbd012a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:22:52.336553 7f4dbd012a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:22:52.336554 7f4dbd012a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:22:52.336555 7f4dbd012a80 Options.disable_auto_compactions: 0
+2021/03/13-23:22:52.336556 7f4dbd012a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:22:52.336557 7f4dbd012a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:22:52.336558 7f4dbd012a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:22:52.336558 7f4dbd012a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:22:52.336559 7f4dbd012a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:22:52.336560 7f4dbd012a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:22:52.336560 7f4dbd012a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:22:52.336561 7f4dbd012a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:22:52.336562 7f4dbd012a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:22:52.336562 7f4dbd012a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:22:52.336563 7f4dbd012a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:22:52.336563 7f4dbd012a80 Options.table_properties_collectors:
+2021/03/13-23:22:52.336564 7f4dbd012a80 Options.inplace_update_support: 0
+2021/03/13-23:22:52.336565 7f4dbd012a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:22:52.336565 7f4dbd012a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:22:52.336566 7f4dbd012a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:22:52.336567 7f4dbd012a80 Options.bloom_locality: 0
+2021/03/13-23:22:52.336567 7f4dbd012a80 Options.max_successive_merges: 0
+2021/03/13-23:22:52.336568 7f4dbd012a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:22:52.336569 7f4dbd012a80 Options.paranoid_file_checks: 0
+2021/03/13-23:22:52.336569 7f4dbd012a80 Options.force_consistency_checks: 0
+2021/03/13-23:22:52.336570 7f4dbd012a80 Options.report_bg_io_stats: 0
+2021/03/13-23:22:52.336976 7f4dbd012a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:22:52.336979 7f4dbd012a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:22:52.337053 7f4dbd012a80 EVENT_LOG_v1 {"time_micros": 1615674172337042, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:22:52.337059 7f4dbd012a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:22:53.045814 7f4dbd012a80 EVENT_LOG_v1 {"time_micros": 1615674173045810, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674173782176 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674173782176
new file mode 100644
index 0000000..e5d24f3
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674173782176
@@ -0,0 +1,186 @@
+2021/03/13-23:22:53.058081 7f4dbd012a80 RocksDB version: 5.11.3
+2021/03/13-23:22:53.058138 7f4dbd012a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:22:53.058139 7f4dbd012a80 Compile date Mar 13 2021
+2021/03/13-23:22:53.058142 7f4dbd012a80 DB SUMMARY
+2021/03/13-23:22:53.058192 7f4dbd012a80 CURRENT file: CURRENT
+2021/03/13-23:22:53.058193 7f4dbd012a80 IDENTITY file: IDENTITY
+2021/03/13-23:22:53.058198 7f4dbd012a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:22:53.058199 7f4dbd012a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:22:53.058200 7f4dbd012a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:22:53.058203 7f4dbd012a80 Options.error_if_exists: 0
+2021/03/13-23:22:53.058204 7f4dbd012a80 Options.create_if_missing: 1
+2021/03/13-23:22:53.058204 7f4dbd012a80 Options.paranoid_checks: 1
+2021/03/13-23:22:53.058205 7f4dbd012a80 Options.env: 0x7f4dbd9cc080
+2021/03/13-23:22:53.058206 7f4dbd012a80 Options.info_log: 0x1f46ca0
+2021/03/13-23:22:53.058206 7f4dbd012a80 Options.max_file_opening_threads: 16
+2021/03/13-23:22:53.058207 7f4dbd012a80 Options.statistics: (nil)
+2021/03/13-23:22:53.058207 7f4dbd012a80 Options.use_fsync: 0
+2021/03/13-23:22:53.058208 7f4dbd012a80 Options.max_log_file_size: 0
+2021/03/13-23:22:53.058209 7f4dbd012a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:22:53.058209 7f4dbd012a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:22:53.058210 7f4dbd012a80 Options.keep_log_file_num: 1000
+2021/03/13-23:22:53.058210 7f4dbd012a80 Options.recycle_log_file_num: 0
+2021/03/13-23:22:53.058211 7f4dbd012a80 Options.allow_fallocate: 1
+2021/03/13-23:22:53.058212 7f4dbd012a80 Options.allow_mmap_reads: 0
+2021/03/13-23:22:53.058212 7f4dbd012a80 Options.allow_mmap_writes: 0
+2021/03/13-23:22:53.058213 7f4dbd012a80 Options.use_direct_reads: 0
+2021/03/13-23:22:53.058213 7f4dbd012a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:22:53.058214 7f4dbd012a80 Options.create_missing_column_families: 0
+2021/03/13-23:22:53.058214 7f4dbd012a80 Options.db_log_dir:
+2021/03/13-23:22:53.058215 7f4dbd012a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:22:53.058215 7f4dbd012a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:22:53.058216 7f4dbd012a80 Options.max_subcompactions: 1
+2021/03/13-23:22:53.058217 7f4dbd012a80 Options.max_background_flushes: -1
+2021/03/13-23:22:53.058217 7f4dbd012a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:22:53.058218 7f4dbd012a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:22:53.058218 7f4dbd012a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:22:53.058219 7f4dbd012a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:22:53.058220 7f4dbd012a80 Options.advise_random_on_open: 1
+2021/03/13-23:22:53.058220 7f4dbd012a80 Options.db_write_buffer_size: 0
+2021/03/13-23:22:53.058221 7f4dbd012a80 Options.write_buffer_manager: 0x1f2eb90
+2021/03/13-23:22:53.058221 7f4dbd012a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:22:53.058222 7f4dbd012a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:22:53.058222 7f4dbd012a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:22:53.058223 7f4dbd012a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:22:53.058224 7f4dbd012a80 Options.rate_limiter: (nil)
+2021/03/13-23:22:53.058225 7f4dbd012a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:22:53.058232 7f4dbd012a80 Options.wal_recovery_mode: 2
+2021/03/13-23:22:53.058233 7f4dbd012a80 Options.enable_thread_tracking: 0
+2021/03/13-23:22:53.058234 7f4dbd012a80 Options.enable_pipelined_write: 0
+2021/03/13-23:22:53.058234 7f4dbd012a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:22:53.058235 7f4dbd012a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:22:53.058235 7f4dbd012a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:22:53.058236 7f4dbd012a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:22:53.058237 7f4dbd012a80 Options.row_cache: None
+2021/03/13-23:22:53.058237 7f4dbd012a80 Options.wal_filter: None
+2021/03/13-23:22:53.058244 7f4dbd012a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:22:53.058244 7f4dbd012a80 Options.allow_ingest_behind: 0
+2021/03/13-23:22:53.058245 7f4dbd012a80 Options.preserve_deletes: 0
+2021/03/13-23:22:53.058245 7f4dbd012a80 Options.two_write_queues: 0
+2021/03/13-23:22:53.058246 7f4dbd012a80 Options.manual_wal_flush: 0
+2021/03/13-23:22:53.058248 7f4dbd012a80 Options.max_background_jobs: 16
+2021/03/13-23:22:53.058248 7f4dbd012a80 Options.max_background_compactions: -1
+2021/03/13-23:22:53.058249 7f4dbd012a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:22:53.058249 7f4dbd012a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:22:53.058250 7f4dbd012a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:22:53.058250 7f4dbd012a80 Options.max_total_wal_size: 0
+2021/03/13-23:22:53.058251 7f4dbd012a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:22:53.058252 7f4dbd012a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:22:53.058252 7f4dbd012a80 Options.max_open_files: -1
+2021/03/13-23:22:53.058253 7f4dbd012a80 Options.bytes_per_sync: 0
+2021/03/13-23:22:53.058253 7f4dbd012a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:22:53.058254 7f4dbd012a80 Options.compaction_readahead_size: 0
+2021/03/13-23:22:53.058254 7f4dbd012a80 Compression algorithms supported:
+2021/03/13-23:22:53.058255 7f4dbd012a80 Snappy supported: 1
+2021/03/13-23:22:53.058256 7f4dbd012a80 Zlib supported: 1
+2021/03/13-23:22:53.058256 7f4dbd012a80 Bzip supported: 1
+2021/03/13-23:22:53.058257 7f4dbd012a80 LZ4 supported: 1
+2021/03/13-23:22:53.058257 7f4dbd012a80 ZSTDNotFinal supported: 1
+2021/03/13-23:22:53.058261 7f4dbd012a80 ZSTD supported: 1
+2021/03/13-23:22:53.058264 7f4dbd012a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:22:53.058266 7f4dbd012a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:22:53.058357 7f4dbd012a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:22:53.058411 7f4dbd012a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:22:53.058413 7f4dbd012a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:22:53.058414 7f4dbd012a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:22:53.058414 7f4dbd012a80 Options.compaction_filter: None
+2021/03/13-23:22:53.058415 7f4dbd012a80 Options.compaction_filter_factory: None
+2021/03/13-23:22:53.058416 7f4dbd012a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:22:53.058416 7f4dbd012a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:22:53.058430 7f4dbd012a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1f3e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1f23c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:22:53.058431 7f4dbd012a80 Options.write_buffer_size: 134217728
+2021/03/13-23:22:53.058431 7f4dbd012a80 Options.max_write_buffer_number: 6
+2021/03/13-23:22:53.058432 7f4dbd012a80 Options.compression[0]: NoCompression
+2021/03/13-23:22:53.058433 7f4dbd012a80 Options.compression[1]: NoCompression
+2021/03/13-23:22:53.058433 7f4dbd012a80 Options.compression[2]: Snappy
+2021/03/13-23:22:53.058434 7f4dbd012a80 Options.compression[3]: Snappy
+2021/03/13-23:22:53.058434 7f4dbd012a80 Options.compression[4]: Snappy
+2021/03/13-23:22:53.058435 7f4dbd012a80 Options.compression[5]: Snappy
+2021/03/13-23:22:53.058435 7f4dbd012a80 Options.compression[6]: Snappy
+2021/03/13-23:22:53.058436 7f4dbd012a80 Options.bottommost_compression: Disabled
+2021/03/13-23:22:53.058437 7f4dbd012a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:22:53.058437 7f4dbd012a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:22:53.058438 7f4dbd012a80 Options.num_levels: 7
+2021/03/13-23:22:53.058439 7f4dbd012a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:22:53.058439 7f4dbd012a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:22:53.058440 7f4dbd012a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:22:53.058440 7f4dbd012a80 Options.compression_opts.level: -1
+2021/03/13-23:22:53.058441 7f4dbd012a80 Options.compression_opts.strategy: 0
+2021/03/13-23:22:53.058442 7f4dbd012a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:22:53.058442 7f4dbd012a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:22:53.058443 7f4dbd012a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:22:53.058443 7f4dbd012a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:22:53.058444 7f4dbd012a80 Options.target_file_size_base: 67108864
+2021/03/13-23:22:53.058444 7f4dbd012a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:22:53.058445 7f4dbd012a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:22:53.058446 7f4dbd012a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:22:53.058446 7f4dbd012a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:22:53.058448 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:22:53.058455 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:22:53.058456 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:22:53.058456 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:22:53.058457 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:22:53.058458 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:22:53.058458 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:22:53.058459 7f4dbd012a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:22:53.058459 7f4dbd012a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:22:53.058460 7f4dbd012a80 Options.arena_block_size: 16777216
+2021/03/13-23:22:53.058460 7f4dbd012a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:22:53.058461 7f4dbd012a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:22:53.058462 7f4dbd012a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:22:53.058462 7f4dbd012a80 Options.disable_auto_compactions: 0
+2021/03/13-23:22:53.058464 7f4dbd012a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:22:53.058465 7f4dbd012a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:22:53.058465 7f4dbd012a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:22:53.058466 7f4dbd012a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:22:53.058466 7f4dbd012a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:22:53.058467 7f4dbd012a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:22:53.058468 7f4dbd012a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:22:53.058469 7f4dbd012a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:22:53.058469 7f4dbd012a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:22:53.058470 7f4dbd012a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:22:53.058470 7f4dbd012a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:22:53.058471 7f4dbd012a80 Options.table_properties_collectors:
+2021/03/13-23:22:53.058471 7f4dbd012a80 Options.inplace_update_support: 0
+2021/03/13-23:22:53.058472 7f4dbd012a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:22:53.058473 7f4dbd012a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:22:53.058474 7f4dbd012a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:22:53.058474 7f4dbd012a80 Options.bloom_locality: 0
+2021/03/13-23:22:53.058475 7f4dbd012a80 Options.max_successive_merges: 0
+2021/03/13-23:22:53.058475 7f4dbd012a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:22:53.058476 7f4dbd012a80 Options.paranoid_file_checks: 0
+2021/03/13-23:22:53.058476 7f4dbd012a80 Options.force_consistency_checks: 0
+2021/03/13-23:22:53.058477 7f4dbd012a80 Options.report_bg_io_stats: 0
+2021/03/13-23:22:53.058885 7f4dbd012a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:22:53.058887 7f4dbd012a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:22:53.058960 7f4dbd012a80 EVENT_LOG_v1 {"time_micros": 1615674173058949, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:22:53.058965 7f4dbd012a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:22:53.769806 7f4dbd012a80 EVENT_LOG_v1 {"time_micros": 1615674173769803, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674174487184 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674174487184
new file mode 100644
index 0000000..cd54829
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674174487184
@@ -0,0 +1,186 @@
+2021/03/13-23:22:53.782480 7f4dbd012a80 RocksDB version: 5.11.3
+2021/03/13-23:22:53.782535 7f4dbd012a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:22:53.782536 7f4dbd012a80 Compile date Mar 13 2021
+2021/03/13-23:22:53.782539 7f4dbd012a80 DB SUMMARY
+2021/03/13-23:22:53.782587 7f4dbd012a80 CURRENT file: CURRENT
+2021/03/13-23:22:53.782588 7f4dbd012a80 IDENTITY file: IDENTITY
+2021/03/13-23:22:53.782593 7f4dbd012a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:22:53.782594 7f4dbd012a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:22:53.782595 7f4dbd012a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:22:53.782598 7f4dbd012a80 Options.error_if_exists: 0
+2021/03/13-23:22:53.782599 7f4dbd012a80 Options.create_if_missing: 1
+2021/03/13-23:22:53.782600 7f4dbd012a80 Options.paranoid_checks: 1
+2021/03/13-23:22:53.782600 7f4dbd012a80 Options.env: 0x7f4dbd9cc080
+2021/03/13-23:22:53.782601 7f4dbd012a80 Options.info_log: 0x1f46ca0
+2021/03/13-23:22:53.782601 7f4dbd012a80 Options.max_file_opening_threads: 16
+2021/03/13-23:22:53.782602 7f4dbd012a80 Options.statistics: (nil)
+2021/03/13-23:22:53.782603 7f4dbd012a80 Options.use_fsync: 0
+2021/03/13-23:22:53.782603 7f4dbd012a80 Options.max_log_file_size: 0
+2021/03/13-23:22:53.782604 7f4dbd012a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:22:53.782604 7f4dbd012a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:22:53.782605 7f4dbd012a80 Options.keep_log_file_num: 1000
+2021/03/13-23:22:53.782606 7f4dbd012a80 Options.recycle_log_file_num: 0
+2021/03/13-23:22:53.782606 7f4dbd012a80 Options.allow_fallocate: 1
+2021/03/13-23:22:53.782607 7f4dbd012a80 Options.allow_mmap_reads: 0
+2021/03/13-23:22:53.782607 7f4dbd012a80 Options.allow_mmap_writes: 0
+2021/03/13-23:22:53.782608 7f4dbd012a80 Options.use_direct_reads: 0
+2021/03/13-23:22:53.782608 7f4dbd012a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:22:53.782609 7f4dbd012a80 Options.create_missing_column_families: 0
+2021/03/13-23:22:53.782609 7f4dbd012a80 Options.db_log_dir:
+2021/03/13-23:22:53.782610 7f4dbd012a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:22:53.782611 7f4dbd012a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:22:53.782611 7f4dbd012a80 Options.max_subcompactions: 1
+2021/03/13-23:22:53.782612 7f4dbd012a80 Options.max_background_flushes: -1
+2021/03/13-23:22:53.782612 7f4dbd012a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:22:53.782613 7f4dbd012a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:22:53.782613 7f4dbd012a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:22:53.782614 7f4dbd012a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:22:53.782615 7f4dbd012a80 Options.advise_random_on_open: 1
+2021/03/13-23:22:53.782615 7f4dbd012a80 Options.db_write_buffer_size: 0
+2021/03/13-23:22:53.782616 7f4dbd012a80 Options.write_buffer_manager: 0x1f2eb90
+2021/03/13-23:22:53.782616 7f4dbd012a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:22:53.782617 7f4dbd012a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:22:53.782617 7f4dbd012a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:22:53.782618 7f4dbd012a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:22:53.782618 7f4dbd012a80 Options.rate_limiter: (nil)
+2021/03/13-23:22:53.782620 7f4dbd012a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:22:53.782627 7f4dbd012a80 Options.wal_recovery_mode: 2
+2021/03/13-23:22:53.782628 7f4dbd012a80 Options.enable_thread_tracking: 0
+2021/03/13-23:22:53.782629 7f4dbd012a80 Options.enable_pipelined_write: 0
+2021/03/13-23:22:53.782629 7f4dbd012a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:22:53.782630 7f4dbd012a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:22:53.782630 7f4dbd012a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:22:53.782631 7f4dbd012a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:22:53.782631 7f4dbd012a80 Options.row_cache: None
+2021/03/13-23:22:53.782632 7f4dbd012a80 Options.wal_filter: None
+2021/03/13-23:22:53.782633 7f4dbd012a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:22:53.782633 7f4dbd012a80 Options.allow_ingest_behind: 0
+2021/03/13-23:22:53.782634 7f4dbd012a80 Options.preserve_deletes: 0
+2021/03/13-23:22:53.782634 7f4dbd012a80 Options.two_write_queues: 0
+2021/03/13-23:22:53.782635 7f4dbd012a80 Options.manual_wal_flush: 0
+2021/03/13-23:22:53.782636 7f4dbd012a80 Options.max_background_jobs: 16
+2021/03/13-23:22:53.782636 7f4dbd012a80 Options.max_background_compactions: -1
+2021/03/13-23:22:53.782637 7f4dbd012a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:22:53.782637 7f4dbd012a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:22:53.782638 7f4dbd012a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:22:53.782639 7f4dbd012a80 Options.max_total_wal_size: 0
+2021/03/13-23:22:53.782639 7f4dbd012a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:22:53.782640 7f4dbd012a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:22:53.782640 7f4dbd012a80 Options.max_open_files: -1
+2021/03/13-23:22:53.782641 7f4dbd012a80 Options.bytes_per_sync: 0
+2021/03/13-23:22:53.782642 7f4dbd012a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:22:53.782642 7f4dbd012a80 Options.compaction_readahead_size: 0
+2021/03/13-23:22:53.782643 7f4dbd012a80 Compression algorithms supported:
+2021/03/13-23:22:53.782643 7f4dbd012a80 Snappy supported: 1
+2021/03/13-23:22:53.782644 7f4dbd012a80 Zlib supported: 1
+2021/03/13-23:22:53.782644 7f4dbd012a80 Bzip supported: 1
+2021/03/13-23:22:53.782645 7f4dbd012a80 LZ4 supported: 1
+2021/03/13-23:22:53.782645 7f4dbd012a80 ZSTDNotFinal supported: 1
+2021/03/13-23:22:53.782649 7f4dbd012a80 ZSTD supported: 1
+2021/03/13-23:22:53.782652 7f4dbd012a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:22:53.782653 7f4dbd012a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:22:53.782741 7f4dbd012a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:22:53.782794 7f4dbd012a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:22:53.782795 7f4dbd012a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:22:53.782796 7f4dbd012a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:22:53.782797 7f4dbd012a80 Options.compaction_filter: None
+2021/03/13-23:22:53.782797 7f4dbd012a80 Options.compaction_filter_factory: None
+2021/03/13-23:22:53.782798 7f4dbd012a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:22:53.782799 7f4dbd012a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:22:53.782812 7f4dbd012a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1f3e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1f23c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:22:53.782813 7f4dbd012a80 Options.write_buffer_size: 134217728
+2021/03/13-23:22:53.782814 7f4dbd012a80 Options.max_write_buffer_number: 6
+2021/03/13-23:22:53.782814 7f4dbd012a80 Options.compression[0]: NoCompression
+2021/03/13-23:22:53.782815 7f4dbd012a80 Options.compression[1]: NoCompression
+2021/03/13-23:22:53.782816 7f4dbd012a80 Options.compression[2]: Snappy
+2021/03/13-23:22:53.782816 7f4dbd012a80 Options.compression[3]: Snappy
+2021/03/13-23:22:53.782817 7f4dbd012a80 Options.compression[4]: Snappy
+2021/03/13-23:22:53.782817 7f4dbd012a80 Options.compression[5]: Snappy
+2021/03/13-23:22:53.782818 7f4dbd012a80 Options.compression[6]: Snappy
+2021/03/13-23:22:53.782818 7f4dbd012a80 Options.bottommost_compression: Disabled
+2021/03/13-23:22:53.782819 7f4dbd012a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:22:53.782820 7f4dbd012a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:22:53.782820 7f4dbd012a80 Options.num_levels: 7
+2021/03/13-23:22:53.782821 7f4dbd012a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:22:53.782822 7f4dbd012a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:22:53.782822 7f4dbd012a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:22:53.782823 7f4dbd012a80 Options.compression_opts.level: -1
+2021/03/13-23:22:53.782823 7f4dbd012a80 Options.compression_opts.strategy: 0
+2021/03/13-23:22:53.782824 7f4dbd012a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:22:53.782824 7f4dbd012a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:22:53.782825 7f4dbd012a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:22:53.782825 7f4dbd012a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:22:53.782826 7f4dbd012a80 Options.target_file_size_base: 67108864
+2021/03/13-23:22:53.782827 7f4dbd012a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:22:53.782827 7f4dbd012a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:22:53.782828 7f4dbd012a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:22:53.782828 7f4dbd012a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:22:53.782830 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:22:53.782837 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:22:53.782838 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:22:53.782838 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:22:53.782839 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:22:53.782839 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:22:53.782840 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:22:53.782841 7f4dbd012a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:22:53.782841 7f4dbd012a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:22:53.782842 7f4dbd012a80 Options.arena_block_size: 16777216
+2021/03/13-23:22:53.782842 7f4dbd012a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:22:53.782843 7f4dbd012a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:22:53.782843 7f4dbd012a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:22:53.782844 7f4dbd012a80 Options.disable_auto_compactions: 0
+2021/03/13-23:22:53.782846 7f4dbd012a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:22:53.782846 7f4dbd012a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:22:53.782847 7f4dbd012a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:22:53.782847 7f4dbd012a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:22:53.782848 7f4dbd012a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:22:53.782849 7f4dbd012a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:22:53.782849 7f4dbd012a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:22:53.782850 7f4dbd012a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:22:53.782851 7f4dbd012a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:22:53.782851 7f4dbd012a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:22:53.782852 7f4dbd012a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:22:53.782852 7f4dbd012a80 Options.table_properties_collectors:
+2021/03/13-23:22:53.782853 7f4dbd012a80 Options.inplace_update_support: 0
+2021/03/13-23:22:53.782853 7f4dbd012a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:22:53.782854 7f4dbd012a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:22:53.782855 7f4dbd012a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:22:53.782855 7f4dbd012a80 Options.bloom_locality: 0
+2021/03/13-23:22:53.782856 7f4dbd012a80 Options.max_successive_merges: 0
+2021/03/13-23:22:53.782856 7f4dbd012a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:22:53.782857 7f4dbd012a80 Options.paranoid_file_checks: 0
+2021/03/13-23:22:53.782858 7f4dbd012a80 Options.force_consistency_checks: 0
+2021/03/13-23:22:53.782858 7f4dbd012a80 Options.report_bg_io_stats: 0
+2021/03/13-23:22:53.783224 7f4dbd012a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:22:53.783226 7f4dbd012a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:22:53.783310 7f4dbd012a80 EVENT_LOG_v1 {"time_micros": 1615674173783301, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:22:53.783315 7f4dbd012a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:22:54.473761 7f4dbd012a80 EVENT_LOG_v1 {"time_micros": 1615674174473758, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674189454193 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674189454193
new file mode 100644
index 0000000..620e892
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674189454193
@@ -0,0 +1,186 @@
+2021/03/13-23:22:54.487500 7f4dbd012a80 RocksDB version: 5.11.3
+2021/03/13-23:22:54.487557 7f4dbd012a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:22:54.487558 7f4dbd012a80 Compile date Mar 13 2021
+2021/03/13-23:22:54.487561 7f4dbd012a80 DB SUMMARY
+2021/03/13-23:22:54.487612 7f4dbd012a80 CURRENT file: CURRENT
+2021/03/13-23:22:54.487612 7f4dbd012a80 IDENTITY file: IDENTITY
+2021/03/13-23:22:54.487617 7f4dbd012a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:22:54.487619 7f4dbd012a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:22:54.487619 7f4dbd012a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:22:54.487622 7f4dbd012a80 Options.error_if_exists: 0
+2021/03/13-23:22:54.487623 7f4dbd012a80 Options.create_if_missing: 1
+2021/03/13-23:22:54.487624 7f4dbd012a80 Options.paranoid_checks: 1
+2021/03/13-23:22:54.487625 7f4dbd012a80 Options.env: 0x7f4dbd9cc080
+2021/03/13-23:22:54.487625 7f4dbd012a80 Options.info_log: 0x1f46ca0
+2021/03/13-23:22:54.487626 7f4dbd012a80 Options.max_file_opening_threads: 16
+2021/03/13-23:22:54.487626 7f4dbd012a80 Options.statistics: (nil)
+2021/03/13-23:22:54.487627 7f4dbd012a80 Options.use_fsync: 0
+2021/03/13-23:22:54.487628 7f4dbd012a80 Options.max_log_file_size: 0
+2021/03/13-23:22:54.487628 7f4dbd012a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:22:54.487629 7f4dbd012a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:22:54.487629 7f4dbd012a80 Options.keep_log_file_num: 1000
+2021/03/13-23:22:54.487630 7f4dbd012a80 Options.recycle_log_file_num: 0
+2021/03/13-23:22:54.487631 7f4dbd012a80 Options.allow_fallocate: 1
+2021/03/13-23:22:54.487631 7f4dbd012a80 Options.allow_mmap_reads: 0
+2021/03/13-23:22:54.487632 7f4dbd012a80 Options.allow_mmap_writes: 0
+2021/03/13-23:22:54.487632 7f4dbd012a80 Options.use_direct_reads: 0
+2021/03/13-23:22:54.487633 7f4dbd012a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:22:54.487633 7f4dbd012a80 Options.create_missing_column_families: 0
+2021/03/13-23:22:54.487634 7f4dbd012a80 Options.db_log_dir:
+2021/03/13-23:22:54.487634 7f4dbd012a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:22:54.487635 7f4dbd012a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:22:54.487635 7f4dbd012a80 Options.max_subcompactions: 1
+2021/03/13-23:22:54.487636 7f4dbd012a80 Options.max_background_flushes: -1
+2021/03/13-23:22:54.487637 7f4dbd012a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:22:54.487637 7f4dbd012a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:22:54.487638 7f4dbd012a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:22:54.487638 7f4dbd012a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:22:54.487639 7f4dbd012a80 Options.advise_random_on_open: 1
+2021/03/13-23:22:54.487639 7f4dbd012a80 Options.db_write_buffer_size: 0
+2021/03/13-23:22:54.487640 7f4dbd012a80 Options.write_buffer_manager: 0x1f2eb90
+2021/03/13-23:22:54.487641 7f4dbd012a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:22:54.487641 7f4dbd012a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:22:54.487642 7f4dbd012a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:22:54.487642 7f4dbd012a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:22:54.487643 7f4dbd012a80 Options.rate_limiter: (nil)
+2021/03/13-23:22:54.487644 7f4dbd012a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:22:54.487652 7f4dbd012a80 Options.wal_recovery_mode: 2
+2021/03/13-23:22:54.487652 7f4dbd012a80 Options.enable_thread_tracking: 0
+2021/03/13-23:22:54.487653 7f4dbd012a80 Options.enable_pipelined_write: 0
+2021/03/13-23:22:54.487653 7f4dbd012a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:22:54.487654 7f4dbd012a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:22:54.487655 7f4dbd012a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:22:54.487655 7f4dbd012a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:22:54.487656 7f4dbd012a80 Options.row_cache: None
+2021/03/13-23:22:54.487656 7f4dbd012a80 Options.wal_filter: None
+2021/03/13-23:22:54.487657 7f4dbd012a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:22:54.487657 7f4dbd012a80 Options.allow_ingest_behind: 0
+2021/03/13-23:22:54.487658 7f4dbd012a80 Options.preserve_deletes: 0
+2021/03/13-23:22:54.487658 7f4dbd012a80 Options.two_write_queues: 0
+2021/03/13-23:22:54.487659 7f4dbd012a80 Options.manual_wal_flush: 0
+2021/03/13-23:22:54.487660 7f4dbd012a80 Options.max_background_jobs: 16
+2021/03/13-23:22:54.487661 7f4dbd012a80 Options.max_background_compactions: -1
+2021/03/13-23:22:54.487661 7f4dbd012a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:22:54.487662 7f4dbd012a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:22:54.487662 7f4dbd012a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:22:54.487663 7f4dbd012a80 Options.max_total_wal_size: 0
+2021/03/13-23:22:54.487664 7f4dbd012a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:22:54.487664 7f4dbd012a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:22:54.487665 7f4dbd012a80 Options.max_open_files: -1
+2021/03/13-23:22:54.487665 7f4dbd012a80 Options.bytes_per_sync: 0
+2021/03/13-23:22:54.487666 7f4dbd012a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:22:54.487666 7f4dbd012a80 Options.compaction_readahead_size: 0
+2021/03/13-23:22:54.487667 7f4dbd012a80 Compression algorithms supported:
+2021/03/13-23:22:54.487667 7f4dbd012a80 Snappy supported: 1
+2021/03/13-23:22:54.487668 7f4dbd012a80 Zlib supported: 1
+2021/03/13-23:22:54.487669 7f4dbd012a80 Bzip supported: 1
+2021/03/13-23:22:54.487669 7f4dbd012a80 LZ4 supported: 1
+2021/03/13-23:22:54.487670 7f4dbd012a80 ZSTDNotFinal supported: 1
+2021/03/13-23:22:54.487673 7f4dbd012a80 ZSTD supported: 1
+2021/03/13-23:22:54.487676 7f4dbd012a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:22:54.487678 7f4dbd012a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:22:54.487766 7f4dbd012a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:22:54.487819 7f4dbd012a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:22:54.487820 7f4dbd012a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:22:54.487821 7f4dbd012a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:22:54.487822 7f4dbd012a80 Options.compaction_filter: None
+2021/03/13-23:22:54.487822 7f4dbd012a80 Options.compaction_filter_factory: None
+2021/03/13-23:22:54.487823 7f4dbd012a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:22:54.487824 7f4dbd012a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:22:54.487836 7f4dbd012a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1f3e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1f23c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:22:54.487837 7f4dbd012a80 Options.write_buffer_size: 134217728
+2021/03/13-23:22:54.487838 7f4dbd012a80 Options.max_write_buffer_number: 6
+2021/03/13-23:22:54.487839 7f4dbd012a80 Options.compression[0]: NoCompression
+2021/03/13-23:22:54.487839 7f4dbd012a80 Options.compression[1]: NoCompression
+2021/03/13-23:22:54.487840 7f4dbd012a80 Options.compression[2]: Snappy
+2021/03/13-23:22:54.487841 7f4dbd012a80 Options.compression[3]: Snappy
+2021/03/13-23:22:54.487841 7f4dbd012a80 Options.compression[4]: Snappy
+2021/03/13-23:22:54.487842 7f4dbd012a80 Options.compression[5]: Snappy
+2021/03/13-23:22:54.487842 7f4dbd012a80 Options.compression[6]: Snappy
+2021/03/13-23:22:54.487843 7f4dbd012a80 Options.bottommost_compression: Disabled
+2021/03/13-23:22:54.487844 7f4dbd012a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:22:54.487844 7f4dbd012a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:22:54.487845 7f4dbd012a80 Options.num_levels: 7
+2021/03/13-23:22:54.487845 7f4dbd012a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:22:54.487846 7f4dbd012a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:22:54.487846 7f4dbd012a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:22:54.487847 7f4dbd012a80 Options.compression_opts.level: -1
+2021/03/13-23:22:54.487848 7f4dbd012a80 Options.compression_opts.strategy: 0
+2021/03/13-23:22:54.487848 7f4dbd012a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:22:54.487849 7f4dbd012a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:22:54.487849 7f4dbd012a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:22:54.487850 7f4dbd012a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:22:54.487851 7f4dbd012a80 Options.target_file_size_base: 67108864
+2021/03/13-23:22:54.487851 7f4dbd012a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:22:54.487852 7f4dbd012a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:22:54.487852 7f4dbd012a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:22:54.487853 7f4dbd012a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:22:54.487854 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:22:54.487862 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:22:54.487862 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:22:54.487863 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:22:54.487863 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:22:54.487864 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:22:54.487865 7f4dbd012a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:22:54.487865 7f4dbd012a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:22:54.487866 7f4dbd012a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:22:54.487866 7f4dbd012a80 Options.arena_block_size: 16777216
+2021/03/13-23:22:54.487867 7f4dbd012a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:22:54.487867 7f4dbd012a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:22:54.487868 7f4dbd012a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:22:54.487869 7f4dbd012a80 Options.disable_auto_compactions: 0
+2021/03/13-23:22:54.487870 7f4dbd012a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:22:54.487871 7f4dbd012a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:22:54.487871 7f4dbd012a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:22:54.487872 7f4dbd012a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:22:54.487873 7f4dbd012a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:22:54.487873 7f4dbd012a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:22:54.487874 7f4dbd012a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:22:54.487875 7f4dbd012a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:22:54.487875 7f4dbd012a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:22:54.487876 7f4dbd012a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:22:54.487876 7f4dbd012a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:22:54.487877 7f4dbd012a80 Options.table_properties_collectors:
+2021/03/13-23:22:54.487878 7f4dbd012a80 Options.inplace_update_support: 0
+2021/03/13-23:22:54.487878 7f4dbd012a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:22:54.487879 7f4dbd012a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:22:54.487880 7f4dbd012a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:22:54.487880 7f4dbd012a80 Options.bloom_locality: 0
+2021/03/13-23:22:54.487881 7f4dbd012a80 Options.max_successive_merges: 0
+2021/03/13-23:22:54.487881 7f4dbd012a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:22:54.487882 7f4dbd012a80 Options.paranoid_file_checks: 0
+2021/03/13-23:22:54.487883 7f4dbd012a80 Options.force_consistency_checks: 0
+2021/03/13-23:22:54.487883 7f4dbd012a80 Options.report_bg_io_stats: 0
+2021/03/13-23:22:54.488250 7f4dbd012a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:22:54.488252 7f4dbd012a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:22:54.488336 7f4dbd012a80 EVENT_LOG_v1 {"time_micros": 1615674174488326, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:22:54.488341 7f4dbd012a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:22:55.185915 7f4dbd012a80 EVENT_LOG_v1 {"time_micros": 1615674175185912, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674190178641 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674190178641
new file mode 100644
index 0000000..0d73a1a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674190178641
@@ -0,0 +1,186 @@
+2021/03/13-23:23:09.454561 7f13592fba80 RocksDB version: 5.11.3
+2021/03/13-23:23:09.454642 7f13592fba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:23:09.454645 7f13592fba80 Compile date Mar 13 2021
+2021/03/13-23:23:09.454652 7f13592fba80 DB SUMMARY
+2021/03/13-23:23:09.454734 7f13592fba80 CURRENT file: CURRENT
+2021/03/13-23:23:09.454736 7f13592fba80 IDENTITY file: IDENTITY
+2021/03/13-23:23:09.454746 7f13592fba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:23:09.454748 7f13592fba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:23:09.454749 7f13592fba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:23:09.454755 7f13592fba80 Options.error_if_exists: 0
+2021/03/13-23:23:09.454756 7f13592fba80 Options.create_if_missing: 1
+2021/03/13-23:23:09.454758 7f13592fba80 Options.paranoid_checks: 1
+2021/03/13-23:23:09.454759 7f13592fba80 Options.env: 0x7f1359cb5080
+2021/03/13-23:23:09.454760 7f13592fba80 Options.info_log: 0x2120ca0
+2021/03/13-23:23:09.454762 7f13592fba80 Options.max_file_opening_threads: 16
+2021/03/13-23:23:09.454763 7f13592fba80 Options.statistics: (nil)
+2021/03/13-23:23:09.454765 7f13592fba80 Options.use_fsync: 0
+2021/03/13-23:23:09.454766 7f13592fba80 Options.max_log_file_size: 0
+2021/03/13-23:23:09.454767 7f13592fba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:23:09.454769 7f13592fba80 Options.log_file_time_to_roll: 0
+2021/03/13-23:23:09.454770 7f13592fba80 Options.keep_log_file_num: 1000
+2021/03/13-23:23:09.454771 7f13592fba80 Options.recycle_log_file_num: 0
+2021/03/13-23:23:09.454773 7f13592fba80 Options.allow_fallocate: 1
+2021/03/13-23:23:09.454774 7f13592fba80 Options.allow_mmap_reads: 0
+2021/03/13-23:23:09.454775 7f13592fba80 Options.allow_mmap_writes: 0
+2021/03/13-23:23:09.454776 7f13592fba80 Options.use_direct_reads: 0
+2021/03/13-23:23:09.454778 7f13592fba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:23:09.454779 7f13592fba80 Options.create_missing_column_families: 0
+2021/03/13-23:23:09.454780 7f13592fba80 Options.db_log_dir:
+2021/03/13-23:23:09.454782 7f13592fba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:23:09.454783 7f13592fba80 Options.table_cache_numshardbits: 6
+2021/03/13-23:23:09.454784 7f13592fba80 Options.max_subcompactions: 1
+2021/03/13-23:23:09.454785 7f13592fba80 Options.max_background_flushes: -1
+2021/03/13-23:23:09.454787 7f13592fba80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:23:09.454788 7f13592fba80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:23:09.454789 7f13592fba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:23:09.454791 7f13592fba80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:23:09.454792 7f13592fba80 Options.advise_random_on_open: 1
+2021/03/13-23:23:09.454793 7f13592fba80 Options.db_write_buffer_size: 0
+2021/03/13-23:23:09.454795 7f13592fba80 Options.write_buffer_manager: 0x2108b90
+2021/03/13-23:23:09.454796 7f13592fba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:23:09.454797 7f13592fba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:23:09.454799 7f13592fba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:23:09.454800 7f13592fba80 Options.use_adaptive_mutex: 0
+2021/03/13-23:23:09.454801 7f13592fba80 Options.rate_limiter: (nil)
+2021/03/13-23:23:09.454804 7f13592fba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:23:09.454816 7f13592fba80 Options.wal_recovery_mode: 2
+2021/03/13-23:23:09.454817 7f13592fba80 Options.enable_thread_tracking: 0
+2021/03/13-23:23:09.454819 7f13592fba80 Options.enable_pipelined_write: 0
+2021/03/13-23:23:09.454820 7f13592fba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:23:09.454821 7f13592fba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:23:09.454823 7f13592fba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:23:09.454824 7f13592fba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:23:09.454825 7f13592fba80 Options.row_cache: None
+2021/03/13-23:23:09.454827 7f13592fba80 Options.wal_filter: None
+2021/03/13-23:23:09.454828 7f13592fba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:23:09.454829 7f13592fba80 Options.allow_ingest_behind: 0
+2021/03/13-23:23:09.454831 7f13592fba80 Options.preserve_deletes: 0
+2021/03/13-23:23:09.454832 7f13592fba80 Options.two_write_queues: 0
+2021/03/13-23:23:09.454833 7f13592fba80 Options.manual_wal_flush: 0
+2021/03/13-23:23:09.454835 7f13592fba80 Options.max_background_jobs: 16
+2021/03/13-23:23:09.454837 7f13592fba80 Options.max_background_compactions: -1
+2021/03/13-23:23:09.454838 7f13592fba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:23:09.454839 7f13592fba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:23:09.454841 7f13592fba80 Options.delayed_write_rate : 16777216
+2021/03/13-23:23:09.454842 7f13592fba80 Options.max_total_wal_size: 0
+2021/03/13-23:23:09.454843 7f13592fba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:23:09.454845 7f13592fba80 Options.stats_dump_period_sec: 600
+2021/03/13-23:23:09.454846 7f13592fba80 Options.max_open_files: -1
+2021/03/13-23:23:09.454847 7f13592fba80 Options.bytes_per_sync: 0
+2021/03/13-23:23:09.454849 7f13592fba80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:23:09.454850 7f13592fba80 Options.compaction_readahead_size: 0
+2021/03/13-23:23:09.454851 7f13592fba80 Compression algorithms supported:
+2021/03/13-23:23:09.454853 7f13592fba80 Snappy supported: 1
+2021/03/13-23:23:09.454854 7f13592fba80 Zlib supported: 1
+2021/03/13-23:23:09.454855 7f13592fba80 Bzip supported: 1
+2021/03/13-23:23:09.454857 7f13592fba80 LZ4 supported: 1
+2021/03/13-23:23:09.454858 7f13592fba80 ZSTDNotFinal supported: 1
+2021/03/13-23:23:09.454865 7f13592fba80 ZSTD supported: 1
+2021/03/13-23:23:09.454870 7f13592fba80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:23:09.454872 7f13592fba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:23:09.455007 7f13592fba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:23:09.455089 7f13592fba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:23:09.455092 7f13592fba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:23:09.455093 7f13592fba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:23:09.455095 7f13592fba80 Options.compaction_filter: None
+2021/03/13-23:23:09.455096 7f13592fba80 Options.compaction_filter_factory: None
+2021/03/13-23:23:09.455097 7f13592fba80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:23:09.455099 7f13592fba80 Options.table_factory: BlockBasedTable
+2021/03/13-23:23:09.455121 7f13592fba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2118520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20fdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:23:09.455123 7f13592fba80 Options.write_buffer_size: 134217728
+2021/03/13-23:23:09.455124 7f13592fba80 Options.max_write_buffer_number: 6
+2021/03/13-23:23:09.455126 7f13592fba80 Options.compression[0]: NoCompression
+2021/03/13-23:23:09.455127 7f13592fba80 Options.compression[1]: NoCompression
+2021/03/13-23:23:09.455129 7f13592fba80 Options.compression[2]: Snappy
+2021/03/13-23:23:09.455130 7f13592fba80 Options.compression[3]: Snappy
+2021/03/13-23:23:09.455131 7f13592fba80 Options.compression[4]: Snappy
+2021/03/13-23:23:09.455133 7f13592fba80 Options.compression[5]: Snappy
+2021/03/13-23:23:09.455134 7f13592fba80 Options.compression[6]: Snappy
+2021/03/13-23:23:09.455135 7f13592fba80 Options.bottommost_compression: Disabled
+2021/03/13-23:23:09.455137 7f13592fba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:23:09.455138 7f13592fba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:23:09.455140 7f13592fba80 Options.num_levels: 7
+2021/03/13-23:23:09.455141 7f13592fba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:23:09.455142 7f13592fba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:23:09.455144 7f13592fba80 Options.compression_opts.window_bits: -14
+2021/03/13-23:23:09.455145 7f13592fba80 Options.compression_opts.level: -1
+2021/03/13-23:23:09.455146 7f13592fba80 Options.compression_opts.strategy: 0
+2021/03/13-23:23:09.455148 7f13592fba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:23:09.455149 7f13592fba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:23:09.455150 7f13592fba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:23:09.455165 7f13592fba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:23:09.455167 7f13592fba80 Options.target_file_size_base: 67108864
+2021/03/13-23:23:09.455168 7f13592fba80 Options.target_file_size_multiplier: 1
+2021/03/13-23:23:09.455169 7f13592fba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:23:09.455171 7f13592fba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:23:09.455172 7f13592fba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:23:09.455175 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:23:09.455186 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:23:09.455187 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:23:09.455189 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:23:09.455190 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:23:09.455191 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:23:09.455193 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:23:09.455194 7f13592fba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:23:09.455195 7f13592fba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:23:09.455197 7f13592fba80 Options.arena_block_size: 16777216
+2021/03/13-23:23:09.455198 7f13592fba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:23:09.455199 7f13592fba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:23:09.455201 7f13592fba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:23:09.455202 7f13592fba80 Options.disable_auto_compactions: 0
+2021/03/13-23:23:09.455204 7f13592fba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:23:09.455206 7f13592fba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:23:09.455207 7f13592fba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:23:09.455208 7f13592fba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:23:09.455209 7f13592fba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:23:09.455211 7f13592fba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:23:09.455212 7f13592fba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:23:09.455214 7f13592fba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:23:09.455215 7f13592fba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:23:09.455216 7f13592fba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:23:09.455217 7f13592fba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:23:09.455219 7f13592fba80 Options.table_properties_collectors:
+2021/03/13-23:23:09.455220 7f13592fba80 Options.inplace_update_support: 0
+2021/03/13-23:23:09.455221 7f13592fba80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:23:09.455222 7f13592fba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:23:09.455224 7f13592fba80 Options.memtable_huge_page_size: 0
+2021/03/13-23:23:09.455226 7f13592fba80 Options.bloom_locality: 0
+2021/03/13-23:23:09.455227 7f13592fba80 Options.max_successive_merges: 0
+2021/03/13-23:23:09.455228 7f13592fba80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:23:09.455229 7f13592fba80 Options.paranoid_file_checks: 0
+2021/03/13-23:23:09.455231 7f13592fba80 Options.force_consistency_checks: 0
+2021/03/13-23:23:09.455232 7f13592fba80 Options.report_bg_io_stats: 0
+2021/03/13-23:23:09.455772 7f13592fba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:23:09.455776 7f13592fba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:23:09.455885 7f13592fba80 EVENT_LOG_v1 {"time_micros": 1615674189455872, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:23:09.455893 7f13592fba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:23:10.166277 7f13592fba80 EVENT_LOG_v1 {"time_micros": 1615674190166273, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674190877671 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674190877671
new file mode 100644
index 0000000..eb082f6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674190877671
@@ -0,0 +1,186 @@
+2021/03/13-23:23:10.178942 7f13592fba80 RocksDB version: 5.11.3
+2021/03/13-23:23:10.178997 7f13592fba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:23:10.178998 7f13592fba80 Compile date Mar 13 2021
+2021/03/13-23:23:10.179003 7f13592fba80 DB SUMMARY
+2021/03/13-23:23:10.179053 7f13592fba80 CURRENT file: CURRENT
+2021/03/13-23:23:10.179054 7f13592fba80 IDENTITY file: IDENTITY
+2021/03/13-23:23:10.179059 7f13592fba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:23:10.179060 7f13592fba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:23:10.179061 7f13592fba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:23:10.179064 7f13592fba80 Options.error_if_exists: 0
+2021/03/13-23:23:10.179065 7f13592fba80 Options.create_if_missing: 1
+2021/03/13-23:23:10.179065 7f13592fba80 Options.paranoid_checks: 1
+2021/03/13-23:23:10.179066 7f13592fba80 Options.env: 0x7f1359cb5080
+2021/03/13-23:23:10.179067 7f13592fba80 Options.info_log: 0x2120ca0
+2021/03/13-23:23:10.179067 7f13592fba80 Options.max_file_opening_threads: 16
+2021/03/13-23:23:10.179068 7f13592fba80 Options.statistics: (nil)
+2021/03/13-23:23:10.179068 7f13592fba80 Options.use_fsync: 0
+2021/03/13-23:23:10.179069 7f13592fba80 Options.max_log_file_size: 0
+2021/03/13-23:23:10.179070 7f13592fba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:23:10.179070 7f13592fba80 Options.log_file_time_to_roll: 0
+2021/03/13-23:23:10.179071 7f13592fba80 Options.keep_log_file_num: 1000
+2021/03/13-23:23:10.179071 7f13592fba80 Options.recycle_log_file_num: 0
+2021/03/13-23:23:10.179072 7f13592fba80 Options.allow_fallocate: 1
+2021/03/13-23:23:10.179073 7f13592fba80 Options.allow_mmap_reads: 0
+2021/03/13-23:23:10.179073 7f13592fba80 Options.allow_mmap_writes: 0
+2021/03/13-23:23:10.179074 7f13592fba80 Options.use_direct_reads: 0
+2021/03/13-23:23:10.179074 7f13592fba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:23:10.179075 7f13592fba80 Options.create_missing_column_families: 0
+2021/03/13-23:23:10.179075 7f13592fba80 Options.db_log_dir:
+2021/03/13-23:23:10.179076 7f13592fba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:23:10.179076 7f13592fba80 Options.table_cache_numshardbits: 6
+2021/03/13-23:23:10.179077 7f13592fba80 Options.max_subcompactions: 1
+2021/03/13-23:23:10.179078 7f13592fba80 Options.max_background_flushes: -1
+2021/03/13-23:23:10.179078 7f13592fba80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:23:10.179079 7f13592fba80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:23:10.179079 7f13592fba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:23:10.179080 7f13592fba80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:23:10.179080 7f13592fba80 Options.advise_random_on_open: 1
+2021/03/13-23:23:10.179081 7f13592fba80 Options.db_write_buffer_size: 0
+2021/03/13-23:23:10.179082 7f13592fba80 Options.write_buffer_manager: 0x2108b90
+2021/03/13-23:23:10.179082 7f13592fba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:23:10.179083 7f13592fba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:23:10.179083 7f13592fba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:23:10.179084 7f13592fba80 Options.use_adaptive_mutex: 0
+2021/03/13-23:23:10.179084 7f13592fba80 Options.rate_limiter: (nil)
+2021/03/13-23:23:10.179086 7f13592fba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:23:10.179093 7f13592fba80 Options.wal_recovery_mode: 2
+2021/03/13-23:23:10.179093 7f13592fba80 Options.enable_thread_tracking: 0
+2021/03/13-23:23:10.179094 7f13592fba80 Options.enable_pipelined_write: 0
+2021/03/13-23:23:10.179095 7f13592fba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:23:10.179095 7f13592fba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:23:10.179096 7f13592fba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:23:10.179096 7f13592fba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:23:10.179097 7f13592fba80 Options.row_cache: None
+2021/03/13-23:23:10.179097 7f13592fba80 Options.wal_filter: None
+2021/03/13-23:23:10.179098 7f13592fba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:23:10.179098 7f13592fba80 Options.allow_ingest_behind: 0
+2021/03/13-23:23:10.179099 7f13592fba80 Options.preserve_deletes: 0
+2021/03/13-23:23:10.179099 7f13592fba80 Options.two_write_queues: 0
+2021/03/13-23:23:10.179100 7f13592fba80 Options.manual_wal_flush: 0
+2021/03/13-23:23:10.179101 7f13592fba80 Options.max_background_jobs: 16
+2021/03/13-23:23:10.179102 7f13592fba80 Options.max_background_compactions: -1
+2021/03/13-23:23:10.179102 7f13592fba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:23:10.179103 7f13592fba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:23:10.179103 7f13592fba80 Options.delayed_write_rate : 16777216
+2021/03/13-23:23:10.179104 7f13592fba80 Options.max_total_wal_size: 0
+2021/03/13-23:23:10.179105 7f13592fba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:23:10.179105 7f13592fba80 Options.stats_dump_period_sec: 600
+2021/03/13-23:23:10.179106 7f13592fba80 Options.max_open_files: -1
+2021/03/13-23:23:10.179106 7f13592fba80 Options.bytes_per_sync: 0
+2021/03/13-23:23:10.179107 7f13592fba80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:23:10.179107 7f13592fba80 Options.compaction_readahead_size: 0
+2021/03/13-23:23:10.179108 7f13592fba80 Compression algorithms supported:
+2021/03/13-23:23:10.179109 7f13592fba80 Snappy supported: 1
+2021/03/13-23:23:10.179109 7f13592fba80 Zlib supported: 1
+2021/03/13-23:23:10.179110 7f13592fba80 Bzip supported: 1
+2021/03/13-23:23:10.179110 7f13592fba80 LZ4 supported: 1
+2021/03/13-23:23:10.179111 7f13592fba80 ZSTDNotFinal supported: 1
+2021/03/13-23:23:10.179115 7f13592fba80 ZSTD supported: 1
+2021/03/13-23:23:10.179118 7f13592fba80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:23:10.179119 7f13592fba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:23:10.179211 7f13592fba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:23:10.179277 7f13592fba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:23:10.179279 7f13592fba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:23:10.179280 7f13592fba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:23:10.179281 7f13592fba80 Options.compaction_filter: None
+2021/03/13-23:23:10.179281 7f13592fba80 Options.compaction_filter_factory: None
+2021/03/13-23:23:10.179282 7f13592fba80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:23:10.179283 7f13592fba80 Options.table_factory: BlockBasedTable
+2021/03/13-23:23:10.179298 7f13592fba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2118520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20fdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:23:10.179298 7f13592fba80 Options.write_buffer_size: 134217728
+2021/03/13-23:23:10.179299 7f13592fba80 Options.max_write_buffer_number: 6
+2021/03/13-23:23:10.179300 7f13592fba80 Options.compression[0]: NoCompression
+2021/03/13-23:23:10.179300 7f13592fba80 Options.compression[1]: NoCompression
+2021/03/13-23:23:10.179301 7f13592fba80 Options.compression[2]: Snappy
+2021/03/13-23:23:10.179302 7f13592fba80 Options.compression[3]: Snappy
+2021/03/13-23:23:10.179302 7f13592fba80 Options.compression[4]: Snappy
+2021/03/13-23:23:10.179303 7f13592fba80 Options.compression[5]: Snappy
+2021/03/13-23:23:10.179303 7f13592fba80 Options.compression[6]: Snappy
+2021/03/13-23:23:10.179304 7f13592fba80 Options.bottommost_compression: Disabled
+2021/03/13-23:23:10.179305 7f13592fba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:23:10.179305 7f13592fba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:23:10.179306 7f13592fba80 Options.num_levels: 7
+2021/03/13-23:23:10.179306 7f13592fba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:23:10.179307 7f13592fba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:23:10.179308 7f13592fba80 Options.compression_opts.window_bits: -14
+2021/03/13-23:23:10.179308 7f13592fba80 Options.compression_opts.level: -1
+2021/03/13-23:23:10.179309 7f13592fba80 Options.compression_opts.strategy: 0
+2021/03/13-23:23:10.179309 7f13592fba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:23:10.179310 7f13592fba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:23:10.179310 7f13592fba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:23:10.179311 7f13592fba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:23:10.179312 7f13592fba80 Options.target_file_size_base: 67108864
+2021/03/13-23:23:10.179312 7f13592fba80 Options.target_file_size_multiplier: 1
+2021/03/13-23:23:10.179313 7f13592fba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:23:10.179313 7f13592fba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:23:10.179314 7f13592fba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:23:10.179316 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:23:10.179324 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:23:10.179325 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:23:10.179325 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:23:10.179326 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:23:10.179326 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:23:10.179327 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:23:10.179327 7f13592fba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:23:10.179328 7f13592fba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:23:10.179329 7f13592fba80 Options.arena_block_size: 16777216
+2021/03/13-23:23:10.179329 7f13592fba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:23:10.179330 7f13592fba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:23:10.179330 7f13592fba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:23:10.179331 7f13592fba80 Options.disable_auto_compactions: 0
+2021/03/13-23:23:10.179332 7f13592fba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:23:10.179333 7f13592fba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:23:10.179334 7f13592fba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:23:10.179334 7f13592fba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:23:10.179335 7f13592fba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:23:10.179335 7f13592fba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:23:10.179336 7f13592fba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:23:10.179337 7f13592fba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:23:10.179337 7f13592fba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:23:10.179338 7f13592fba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:23:10.179338 7f13592fba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:23:10.179339 7f13592fba80 Options.table_properties_collectors:
+2021/03/13-23:23:10.179340 7f13592fba80 Options.inplace_update_support: 0
+2021/03/13-23:23:10.179340 7f13592fba80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:23:10.179341 7f13592fba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:23:10.179342 7f13592fba80 Options.memtable_huge_page_size: 0
+2021/03/13-23:23:10.179342 7f13592fba80 Options.bloom_locality: 0
+2021/03/13-23:23:10.179343 7f13592fba80 Options.max_successive_merges: 0
+2021/03/13-23:23:10.179343 7f13592fba80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:23:10.179344 7f13592fba80 Options.paranoid_file_checks: 0
+2021/03/13-23:23:10.179344 7f13592fba80 Options.force_consistency_checks: 0
+2021/03/13-23:23:10.179345 7f13592fba80 Options.report_bg_io_stats: 0
+2021/03/13-23:23:10.179707 7f13592fba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:23:10.179709 7f13592fba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:23:10.179784 7f13592fba80 EVENT_LOG_v1 {"time_micros": 1615674190179774, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:23:10.179790 7f13592fba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:23:10.864619 7f13592fba80 EVENT_LOG_v1 {"time_micros": 1615674190864615, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674191585030 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674191585030
new file mode 100644
index 0000000..99155dd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674191585030
@@ -0,0 +1,186 @@
+2021/03/13-23:23:10.877982 7f13592fba80 RocksDB version: 5.11.3
+2021/03/13-23:23:10.878037 7f13592fba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:23:10.878039 7f13592fba80 Compile date Mar 13 2021
+2021/03/13-23:23:10.878043 7f13592fba80 DB SUMMARY
+2021/03/13-23:23:10.878094 7f13592fba80 CURRENT file: CURRENT
+2021/03/13-23:23:10.878095 7f13592fba80 IDENTITY file: IDENTITY
+2021/03/13-23:23:10.878100 7f13592fba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:23:10.878101 7f13592fba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:23:10.878102 7f13592fba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:23:10.878105 7f13592fba80 Options.error_if_exists: 0
+2021/03/13-23:23:10.878106 7f13592fba80 Options.create_if_missing: 1
+2021/03/13-23:23:10.878107 7f13592fba80 Options.paranoid_checks: 1
+2021/03/13-23:23:10.878107 7f13592fba80 Options.env: 0x7f1359cb5080
+2021/03/13-23:23:10.878108 7f13592fba80 Options.info_log: 0x2120ca0
+2021/03/13-23:23:10.878108 7f13592fba80 Options.max_file_opening_threads: 16
+2021/03/13-23:23:10.878109 7f13592fba80 Options.statistics: (nil)
+2021/03/13-23:23:10.878110 7f13592fba80 Options.use_fsync: 0
+2021/03/13-23:23:10.878110 7f13592fba80 Options.max_log_file_size: 0
+2021/03/13-23:23:10.878111 7f13592fba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:23:10.878111 7f13592fba80 Options.log_file_time_to_roll: 0
+2021/03/13-23:23:10.878112 7f13592fba80 Options.keep_log_file_num: 1000
+2021/03/13-23:23:10.878113 7f13592fba80 Options.recycle_log_file_num: 0
+2021/03/13-23:23:10.878113 7f13592fba80 Options.allow_fallocate: 1
+2021/03/13-23:23:10.878114 7f13592fba80 Options.allow_mmap_reads: 0
+2021/03/13-23:23:10.878114 7f13592fba80 Options.allow_mmap_writes: 0
+2021/03/13-23:23:10.878115 7f13592fba80 Options.use_direct_reads: 0
+2021/03/13-23:23:10.878115 7f13592fba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:23:10.878116 7f13592fba80 Options.create_missing_column_families: 0
+2021/03/13-23:23:10.878116 7f13592fba80 Options.db_log_dir:
+2021/03/13-23:23:10.878117 7f13592fba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:23:10.878118 7f13592fba80 Options.table_cache_numshardbits: 6
+2021/03/13-23:23:10.878118 7f13592fba80 Options.max_subcompactions: 1
+2021/03/13-23:23:10.878119 7f13592fba80 Options.max_background_flushes: -1
+2021/03/13-23:23:10.878119 7f13592fba80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:23:10.878120 7f13592fba80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:23:10.878120 7f13592fba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:23:10.878121 7f13592fba80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:23:10.878122 7f13592fba80 Options.advise_random_on_open: 1
+2021/03/13-23:23:10.878122 7f13592fba80 Options.db_write_buffer_size: 0
+2021/03/13-23:23:10.878123 7f13592fba80 Options.write_buffer_manager: 0x2108b90
+2021/03/13-23:23:10.878123 7f13592fba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:23:10.878124 7f13592fba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:23:10.878124 7f13592fba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:23:10.878125 7f13592fba80 Options.use_adaptive_mutex: 0
+2021/03/13-23:23:10.878125 7f13592fba80 Options.rate_limiter: (nil)
+2021/03/13-23:23:10.878127 7f13592fba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:23:10.878134 7f13592fba80 Options.wal_recovery_mode: 2
+2021/03/13-23:23:10.878135 7f13592fba80 Options.enable_thread_tracking: 0
+2021/03/13-23:23:10.878135 7f13592fba80 Options.enable_pipelined_write: 0
+2021/03/13-23:23:10.878136 7f13592fba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:23:10.878136 7f13592fba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:23:10.878137 7f13592fba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:23:10.878138 7f13592fba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:23:10.878138 7f13592fba80 Options.row_cache: None
+2021/03/13-23:23:10.878139 7f13592fba80 Options.wal_filter: None
+2021/03/13-23:23:10.878139 7f13592fba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:23:10.878140 7f13592fba80 Options.allow_ingest_behind: 0
+2021/03/13-23:23:10.878140 7f13592fba80 Options.preserve_deletes: 0
+2021/03/13-23:23:10.878141 7f13592fba80 Options.two_write_queues: 0
+2021/03/13-23:23:10.878142 7f13592fba80 Options.manual_wal_flush: 0
+2021/03/13-23:23:10.878143 7f13592fba80 Options.max_background_jobs: 16
+2021/03/13-23:23:10.878143 7f13592fba80 Options.max_background_compactions: -1
+2021/03/13-23:23:10.878144 7f13592fba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:23:10.878145 7f13592fba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:23:10.878145 7f13592fba80 Options.delayed_write_rate : 16777216
+2021/03/13-23:23:10.878146 7f13592fba80 Options.max_total_wal_size: 0
+2021/03/13-23:23:10.878146 7f13592fba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:23:10.878147 7f13592fba80 Options.stats_dump_period_sec: 600
+2021/03/13-23:23:10.878147 7f13592fba80 Options.max_open_files: -1
+2021/03/13-23:23:10.878148 7f13592fba80 Options.bytes_per_sync: 0
+2021/03/13-23:23:10.878149 7f13592fba80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:23:10.878149 7f13592fba80 Options.compaction_readahead_size: 0
+2021/03/13-23:23:10.878150 7f13592fba80 Compression algorithms supported:
+2021/03/13-23:23:10.878150 7f13592fba80 Snappy supported: 1
+2021/03/13-23:23:10.878151 7f13592fba80 Zlib supported: 1
+2021/03/13-23:23:10.878151 7f13592fba80 Bzip supported: 1
+2021/03/13-23:23:10.878152 7f13592fba80 LZ4 supported: 1
+2021/03/13-23:23:10.878153 7f13592fba80 ZSTDNotFinal supported: 1
+2021/03/13-23:23:10.878156 7f13592fba80 ZSTD supported: 1
+2021/03/13-23:23:10.878159 7f13592fba80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:23:10.878161 7f13592fba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:23:10.878272 7f13592fba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:23:10.878327 7f13592fba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:23:10.878329 7f13592fba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:23:10.878330 7f13592fba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:23:10.878331 7f13592fba80 Options.compaction_filter: None
+2021/03/13-23:23:10.878331 7f13592fba80 Options.compaction_filter_factory: None
+2021/03/13-23:23:10.878332 7f13592fba80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:23:10.878333 7f13592fba80 Options.table_factory: BlockBasedTable
+2021/03/13-23:23:10.878346 7f13592fba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2118520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20fdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:23:10.878346 7f13592fba80 Options.write_buffer_size: 134217728
+2021/03/13-23:23:10.878347 7f13592fba80 Options.max_write_buffer_number: 6
+2021/03/13-23:23:10.878348 7f13592fba80 Options.compression[0]: NoCompression
+2021/03/13-23:23:10.878348 7f13592fba80 Options.compression[1]: NoCompression
+2021/03/13-23:23:10.878349 7f13592fba80 Options.compression[2]: Snappy
+2021/03/13-23:23:10.878350 7f13592fba80 Options.compression[3]: Snappy
+2021/03/13-23:23:10.878350 7f13592fba80 Options.compression[4]: Snappy
+2021/03/13-23:23:10.878351 7f13592fba80 Options.compression[5]: Snappy
+2021/03/13-23:23:10.878351 7f13592fba80 Options.compression[6]: Snappy
+2021/03/13-23:23:10.878352 7f13592fba80 Options.bottommost_compression: Disabled
+2021/03/13-23:23:10.878353 7f13592fba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:23:10.878353 7f13592fba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:23:10.878354 7f13592fba80 Options.num_levels: 7
+2021/03/13-23:23:10.878354 7f13592fba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:23:10.878355 7f13592fba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:23:10.878355 7f13592fba80 Options.compression_opts.window_bits: -14
+2021/03/13-23:23:10.878356 7f13592fba80 Options.compression_opts.level: -1
+2021/03/13-23:23:10.878357 7f13592fba80 Options.compression_opts.strategy: 0
+2021/03/13-23:23:10.878357 7f13592fba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:23:10.878358 7f13592fba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:23:10.878358 7f13592fba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:23:10.878359 7f13592fba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:23:10.878360 7f13592fba80 Options.target_file_size_base: 67108864
+2021/03/13-23:23:10.878360 7f13592fba80 Options.target_file_size_multiplier: 1
+2021/03/13-23:23:10.878361 7f13592fba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:23:10.878361 7f13592fba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:23:10.878362 7f13592fba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:23:10.878364 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:23:10.878372 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:23:10.878373 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:23:10.878373 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:23:10.878374 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:23:10.878375 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:23:10.878375 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:23:10.878376 7f13592fba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:23:10.878376 7f13592fba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:23:10.878377 7f13592fba80 Options.arena_block_size: 16777216
+2021/03/13-23:23:10.878377 7f13592fba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:23:10.878378 7f13592fba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:23:10.878379 7f13592fba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:23:10.878379 7f13592fba80 Options.disable_auto_compactions: 0
+2021/03/13-23:23:10.878381 7f13592fba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:23:10.878381 7f13592fba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:23:10.878382 7f13592fba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:23:10.878383 7f13592fba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:23:10.878383 7f13592fba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:23:10.878384 7f13592fba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:23:10.878384 7f13592fba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:23:10.878385 7f13592fba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:23:10.878386 7f13592fba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:23:10.878386 7f13592fba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:23:10.878387 7f13592fba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:23:10.878387 7f13592fba80 Options.table_properties_collectors:
+2021/03/13-23:23:10.878388 7f13592fba80 Options.inplace_update_support: 0
+2021/03/13-23:23:10.878389 7f13592fba80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:23:10.878389 7f13592fba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:23:10.878390 7f13592fba80 Options.memtable_huge_page_size: 0
+2021/03/13-23:23:10.878391 7f13592fba80 Options.bloom_locality: 0
+2021/03/13-23:23:10.878391 7f13592fba80 Options.max_successive_merges: 0
+2021/03/13-23:23:10.878392 7f13592fba80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:23:10.878392 7f13592fba80 Options.paranoid_file_checks: 0
+2021/03/13-23:23:10.878393 7f13592fba80 Options.force_consistency_checks: 0
+2021/03/13-23:23:10.878393 7f13592fba80 Options.report_bg_io_stats: 0
+2021/03/13-23:23:10.878767 7f13592fba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:23:10.878770 7f13592fba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:23:10.878846 7f13592fba80 EVENT_LOG_v1 {"time_micros": 1615674190878836, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:23:10.878851 7f13592fba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:23:11.570941 7f13592fba80 EVENT_LOG_v1 {"time_micros": 1615674191570938, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674329297511 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674329297511
new file mode 100644
index 0000000..99b241f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674329297511
@@ -0,0 +1,186 @@
+2021/03/13-23:23:11.585348 7f13592fba80 RocksDB version: 5.11.3
+2021/03/13-23:23:11.585404 7f13592fba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:23:11.585405 7f13592fba80 Compile date Mar 13 2021
+2021/03/13-23:23:11.585410 7f13592fba80 DB SUMMARY
+2021/03/13-23:23:11.585460 7f13592fba80 CURRENT file: CURRENT
+2021/03/13-23:23:11.585461 7f13592fba80 IDENTITY file: IDENTITY
+2021/03/13-23:23:11.585467 7f13592fba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:23:11.585468 7f13592fba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:23:11.585469 7f13592fba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:23:11.585472 7f13592fba80 Options.error_if_exists: 0
+2021/03/13-23:23:11.585473 7f13592fba80 Options.create_if_missing: 1
+2021/03/13-23:23:11.585473 7f13592fba80 Options.paranoid_checks: 1
+2021/03/13-23:23:11.585474 7f13592fba80 Options.env: 0x7f1359cb5080
+2021/03/13-23:23:11.585474 7f13592fba80 Options.info_log: 0x2120ca0
+2021/03/13-23:23:11.585475 7f13592fba80 Options.max_file_opening_threads: 16
+2021/03/13-23:23:11.585476 7f13592fba80 Options.statistics: (nil)
+2021/03/13-23:23:11.585476 7f13592fba80 Options.use_fsync: 0
+2021/03/13-23:23:11.585477 7f13592fba80 Options.max_log_file_size: 0
+2021/03/13-23:23:11.585477 7f13592fba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:23:11.585478 7f13592fba80 Options.log_file_time_to_roll: 0
+2021/03/13-23:23:11.585479 7f13592fba80 Options.keep_log_file_num: 1000
+2021/03/13-23:23:11.585479 7f13592fba80 Options.recycle_log_file_num: 0
+2021/03/13-23:23:11.585480 7f13592fba80 Options.allow_fallocate: 1
+2021/03/13-23:23:11.585480 7f13592fba80 Options.allow_mmap_reads: 0
+2021/03/13-23:23:11.585481 7f13592fba80 Options.allow_mmap_writes: 0
+2021/03/13-23:23:11.585481 7f13592fba80 Options.use_direct_reads: 0
+2021/03/13-23:23:11.585482 7f13592fba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:23:11.585482 7f13592fba80 Options.create_missing_column_families: 0
+2021/03/13-23:23:11.585483 7f13592fba80 Options.db_log_dir:
+2021/03/13-23:23:11.585484 7f13592fba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:23:11.585484 7f13592fba80 Options.table_cache_numshardbits: 6
+2021/03/13-23:23:11.585485 7f13592fba80 Options.max_subcompactions: 1
+2021/03/13-23:23:11.585485 7f13592fba80 Options.max_background_flushes: -1
+2021/03/13-23:23:11.585486 7f13592fba80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:23:11.585486 7f13592fba80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:23:11.585487 7f13592fba80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:23:11.585488 7f13592fba80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:23:11.585488 7f13592fba80 Options.advise_random_on_open: 1
+2021/03/13-23:23:11.585489 7f13592fba80 Options.db_write_buffer_size: 0
+2021/03/13-23:23:11.585489 7f13592fba80 Options.write_buffer_manager: 0x2108b90
+2021/03/13-23:23:11.585490 7f13592fba80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:23:11.585490 7f13592fba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:23:11.585491 7f13592fba80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:23:11.585491 7f13592fba80 Options.use_adaptive_mutex: 0
+2021/03/13-23:23:11.585492 7f13592fba80 Options.rate_limiter: (nil)
+2021/03/13-23:23:11.585493 7f13592fba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:23:11.585501 7f13592fba80 Options.wal_recovery_mode: 2
+2021/03/13-23:23:11.585502 7f13592fba80 Options.enable_thread_tracking: 0
+2021/03/13-23:23:11.585502 7f13592fba80 Options.enable_pipelined_write: 0
+2021/03/13-23:23:11.585503 7f13592fba80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:23:11.585503 7f13592fba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:23:11.585504 7f13592fba80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:23:11.585504 7f13592fba80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:23:11.585505 7f13592fba80 Options.row_cache: None
+2021/03/13-23:23:11.585506 7f13592fba80 Options.wal_filter: None
+2021/03/13-23:23:11.585506 7f13592fba80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:23:11.585507 7f13592fba80 Options.allow_ingest_behind: 0
+2021/03/13-23:23:11.585507 7f13592fba80 Options.preserve_deletes: 0
+2021/03/13-23:23:11.585508 7f13592fba80 Options.two_write_queues: 0
+2021/03/13-23:23:11.585508 7f13592fba80 Options.manual_wal_flush: 0
+2021/03/13-23:23:11.585509 7f13592fba80 Options.max_background_jobs: 16
+2021/03/13-23:23:11.585510 7f13592fba80 Options.max_background_compactions: -1
+2021/03/13-23:23:11.585511 7f13592fba80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:23:11.585511 7f13592fba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:23:11.585512 7f13592fba80 Options.delayed_write_rate : 16777216
+2021/03/13-23:23:11.585512 7f13592fba80 Options.max_total_wal_size: 0
+2021/03/13-23:23:11.585513 7f13592fba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:23:11.585513 7f13592fba80 Options.stats_dump_period_sec: 600
+2021/03/13-23:23:11.585514 7f13592fba80 Options.max_open_files: -1
+2021/03/13-23:23:11.585515 7f13592fba80 Options.bytes_per_sync: 0
+2021/03/13-23:23:11.585515 7f13592fba80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:23:11.585516 7f13592fba80 Options.compaction_readahead_size: 0
+2021/03/13-23:23:11.585516 7f13592fba80 Compression algorithms supported:
+2021/03/13-23:23:11.585517 7f13592fba80 Snappy supported: 1
+2021/03/13-23:23:11.585517 7f13592fba80 Zlib supported: 1
+2021/03/13-23:23:11.585518 7f13592fba80 Bzip supported: 1
+2021/03/13-23:23:11.585519 7f13592fba80 LZ4 supported: 1
+2021/03/13-23:23:11.585519 7f13592fba80 ZSTDNotFinal supported: 1
+2021/03/13-23:23:11.585523 7f13592fba80 ZSTD supported: 1
+2021/03/13-23:23:11.585526 7f13592fba80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:23:11.585527 7f13592fba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:23:11.585616 7f13592fba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:23:11.585668 7f13592fba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:23:11.585670 7f13592fba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:23:11.585671 7f13592fba80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:23:11.585671 7f13592fba80 Options.compaction_filter: None
+2021/03/13-23:23:11.585672 7f13592fba80 Options.compaction_filter_factory: None
+2021/03/13-23:23:11.585673 7f13592fba80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:23:11.585674 7f13592fba80 Options.table_factory: BlockBasedTable
+2021/03/13-23:23:11.585688 7f13592fba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2118520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20fdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:23:11.585689 7f13592fba80 Options.write_buffer_size: 134217728
+2021/03/13-23:23:11.585689 7f13592fba80 Options.max_write_buffer_number: 6
+2021/03/13-23:23:11.585690 7f13592fba80 Options.compression[0]: NoCompression
+2021/03/13-23:23:11.585691 7f13592fba80 Options.compression[1]: NoCompression
+2021/03/13-23:23:11.585691 7f13592fba80 Options.compression[2]: Snappy
+2021/03/13-23:23:11.585692 7f13592fba80 Options.compression[3]: Snappy
+2021/03/13-23:23:11.585692 7f13592fba80 Options.compression[4]: Snappy
+2021/03/13-23:23:11.585693 7f13592fba80 Options.compression[5]: Snappy
+2021/03/13-23:23:11.585694 7f13592fba80 Options.compression[6]: Snappy
+2021/03/13-23:23:11.585694 7f13592fba80 Options.bottommost_compression: Disabled
+2021/03/13-23:23:11.585695 7f13592fba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:23:11.585696 7f13592fba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:23:11.585696 7f13592fba80 Options.num_levels: 7
+2021/03/13-23:23:11.585697 7f13592fba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:23:11.585697 7f13592fba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:23:11.585698 7f13592fba80 Options.compression_opts.window_bits: -14
+2021/03/13-23:23:11.585698 7f13592fba80 Options.compression_opts.level: -1
+2021/03/13-23:23:11.585699 7f13592fba80 Options.compression_opts.strategy: 0
+2021/03/13-23:23:11.585700 7f13592fba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:23:11.585700 7f13592fba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:23:11.585701 7f13592fba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:23:11.585701 7f13592fba80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:23:11.585702 7f13592fba80 Options.target_file_size_base: 67108864
+2021/03/13-23:23:11.585702 7f13592fba80 Options.target_file_size_multiplier: 1
+2021/03/13-23:23:11.585703 7f13592fba80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:23:11.585704 7f13592fba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:23:11.585704 7f13592fba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:23:11.585706 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:23:11.585713 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:23:11.585714 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:23:11.585714 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:23:11.585715 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:23:11.585715 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:23:11.585716 7f13592fba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:23:11.585716 7f13592fba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:23:11.585717 7f13592fba80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:23:11.585718 7f13592fba80 Options.arena_block_size: 16777216
+2021/03/13-23:23:11.585718 7f13592fba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:23:11.585719 7f13592fba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:23:11.585719 7f13592fba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:23:11.585720 7f13592fba80 Options.disable_auto_compactions: 0
+2021/03/13-23:23:11.585722 7f13592fba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:23:11.585722 7f13592fba80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:23:11.585723 7f13592fba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:23:11.585724 7f13592fba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:23:11.585724 7f13592fba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:23:11.585725 7f13592fba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:23:11.585725 7f13592fba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:23:11.585726 7f13592fba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:23:11.585727 7f13592fba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:23:11.585728 7f13592fba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:23:11.585728 7f13592fba80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:23:11.585729 7f13592fba80 Options.table_properties_collectors:
+2021/03/13-23:23:11.585729 7f13592fba80 Options.inplace_update_support: 0
+2021/03/13-23:23:11.585730 7f13592fba80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:23:11.585731 7f13592fba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:23:11.585731 7f13592fba80 Options.memtable_huge_page_size: 0
+2021/03/13-23:23:11.585732 7f13592fba80 Options.bloom_locality: 0
+2021/03/13-23:23:11.585733 7f13592fba80 Options.max_successive_merges: 0
+2021/03/13-23:23:11.585733 7f13592fba80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:23:11.585734 7f13592fba80 Options.paranoid_file_checks: 0
+2021/03/13-23:23:11.585734 7f13592fba80 Options.force_consistency_checks: 0
+2021/03/13-23:23:11.585735 7f13592fba80 Options.report_bg_io_stats: 0
+2021/03/13-23:23:11.586104 7f13592fba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:23:11.586106 7f13592fba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:23:11.586182 7f13592fba80 EVENT_LOG_v1 {"time_micros": 1615674191586172, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:23:11.586187 7f13592fba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:23:12.273462 7f13592fba80 EVENT_LOG_v1 {"time_micros": 1615674192273458, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674330006930 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674330006930
new file mode 100644
index 0000000..a6006bc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674330006930
@@ -0,0 +1,186 @@
+2021/03/13-23:25:29.297855 7f518c71fa80 RocksDB version: 5.11.3
+2021/03/13-23:25:29.297923 7f518c71fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:25:29.297925 7f518c71fa80 Compile date Mar 13 2021
+2021/03/13-23:25:29.297928 7f518c71fa80 DB SUMMARY
+2021/03/13-23:25:29.297987 7f518c71fa80 CURRENT file: CURRENT
+2021/03/13-23:25:29.297988 7f518c71fa80 IDENTITY file: IDENTITY
+2021/03/13-23:25:29.297994 7f518c71fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:25:29.297995 7f518c71fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:25:29.297996 7f518c71fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:25:29.297999 7f518c71fa80 Options.error_if_exists: 0
+2021/03/13-23:25:29.298000 7f518c71fa80 Options.create_if_missing: 1
+2021/03/13-23:25:29.298001 7f518c71fa80 Options.paranoid_checks: 1
+2021/03/13-23:25:29.298002 7f518c71fa80 Options.env: 0x7f518d0d9080
+2021/03/13-23:25:29.298002 7f518c71fa80 Options.info_log: 0x2416ca0
+2021/03/13-23:25:29.298003 7f518c71fa80 Options.max_file_opening_threads: 16
+2021/03/13-23:25:29.298004 7f518c71fa80 Options.statistics: (nil)
+2021/03/13-23:25:29.298004 7f518c71fa80 Options.use_fsync: 0
+2021/03/13-23:25:29.298005 7f518c71fa80 Options.max_log_file_size: 0
+2021/03/13-23:25:29.298006 7f518c71fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:25:29.298006 7f518c71fa80 Options.log_file_time_to_roll: 0
+2021/03/13-23:25:29.298007 7f518c71fa80 Options.keep_log_file_num: 1000
+2021/03/13-23:25:29.298008 7f518c71fa80 Options.recycle_log_file_num: 0
+2021/03/13-23:25:29.298008 7f518c71fa80 Options.allow_fallocate: 1
+2021/03/13-23:25:29.298009 7f518c71fa80 Options.allow_mmap_reads: 0
+2021/03/13-23:25:29.298010 7f518c71fa80 Options.allow_mmap_writes: 0
+2021/03/13-23:25:29.298010 7f518c71fa80 Options.use_direct_reads: 0
+2021/03/13-23:25:29.298011 7f518c71fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:25:29.298011 7f518c71fa80 Options.create_missing_column_families: 0
+2021/03/13-23:25:29.298012 7f518c71fa80 Options.db_log_dir:
+2021/03/13-23:25:29.298013 7f518c71fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:25:29.298013 7f518c71fa80 Options.table_cache_numshardbits: 6
+2021/03/13-23:25:29.298014 7f518c71fa80 Options.max_subcompactions: 1
+2021/03/13-23:25:29.298015 7f518c71fa80 Options.max_background_flushes: -1
+2021/03/13-23:25:29.298015 7f518c71fa80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:25:29.298016 7f518c71fa80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:25:29.298017 7f518c71fa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:25:29.298017 7f518c71fa80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:25:29.298018 7f518c71fa80 Options.advise_random_on_open: 1
+2021/03/13-23:25:29.298018 7f518c71fa80 Options.db_write_buffer_size: 0
+2021/03/13-23:25:29.298019 7f518c71fa80 Options.write_buffer_manager: 0x23feb90
+2021/03/13-23:25:29.298020 7f518c71fa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:25:29.298020 7f518c71fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:25:29.298021 7f518c71fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:25:29.298021 7f518c71fa80 Options.use_adaptive_mutex: 0
+2021/03/13-23:25:29.298022 7f518c71fa80 Options.rate_limiter: (nil)
+2021/03/13-23:25:29.298024 7f518c71fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:25:29.298032 7f518c71fa80 Options.wal_recovery_mode: 2
+2021/03/13-23:25:29.298033 7f518c71fa80 Options.enable_thread_tracking: 0
+2021/03/13-23:25:29.298033 7f518c71fa80 Options.enable_pipelined_write: 0
+2021/03/13-23:25:29.298034 7f518c71fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:25:29.298035 7f518c71fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:25:29.298035 7f518c71fa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:25:29.298036 7f518c71fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:25:29.298037 7f518c71fa80 Options.row_cache: None
+2021/03/13-23:25:29.298037 7f518c71fa80 Options.wal_filter: None
+2021/03/13-23:25:29.298038 7f518c71fa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:25:29.298038 7f518c71fa80 Options.allow_ingest_behind: 0
+2021/03/13-23:25:29.298039 7f518c71fa80 Options.preserve_deletes: 0
+2021/03/13-23:25:29.298040 7f518c71fa80 Options.two_write_queues: 0
+2021/03/13-23:25:29.298040 7f518c71fa80 Options.manual_wal_flush: 0
+2021/03/13-23:25:29.298042 7f518c71fa80 Options.max_background_jobs: 16
+2021/03/13-23:25:29.298042 7f518c71fa80 Options.max_background_compactions: -1
+2021/03/13-23:25:29.298043 7f518c71fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:25:29.298044 7f518c71fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:25:29.298044 7f518c71fa80 Options.delayed_write_rate : 16777216
+2021/03/13-23:25:29.298045 7f518c71fa80 Options.max_total_wal_size: 0
+2021/03/13-23:25:29.298046 7f518c71fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:25:29.298046 7f518c71fa80 Options.stats_dump_period_sec: 600
+2021/03/13-23:25:29.298047 7f518c71fa80 Options.max_open_files: -1
+2021/03/13-23:25:29.298047 7f518c71fa80 Options.bytes_per_sync: 0
+2021/03/13-23:25:29.298048 7f518c71fa80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:25:29.298049 7f518c71fa80 Options.compaction_readahead_size: 0
+2021/03/13-23:25:29.298049 7f518c71fa80 Compression algorithms supported:
+2021/03/13-23:25:29.298050 7f518c71fa80 Snappy supported: 1
+2021/03/13-23:25:29.298051 7f518c71fa80 Zlib supported: 1
+2021/03/13-23:25:29.298051 7f518c71fa80 Bzip supported: 1
+2021/03/13-23:25:29.298052 7f518c71fa80 LZ4 supported: 1
+2021/03/13-23:25:29.298053 7f518c71fa80 ZSTDNotFinal supported: 1
+2021/03/13-23:25:29.298057 7f518c71fa80 ZSTD supported: 1
+2021/03/13-23:25:29.298061 7f518c71fa80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:25:29.298062 7f518c71fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:25:29.298168 7f518c71fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:25:29.298228 7f518c71fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:25:29.298230 7f518c71fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:25:29.298230 7f518c71fa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:25:29.298231 7f518c71fa80 Options.compaction_filter: None
+2021/03/13-23:25:29.298232 7f518c71fa80 Options.compaction_filter_factory: None
+2021/03/13-23:25:29.298232 7f518c71fa80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:25:29.298233 7f518c71fa80 Options.table_factory: BlockBasedTable
+2021/03/13-23:25:29.298257 7f518c71fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x240e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x23f3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:25:29.298258 7f518c71fa80 Options.write_buffer_size: 134217728
+2021/03/13-23:25:29.298259 7f518c71fa80 Options.max_write_buffer_number: 6
+2021/03/13-23:25:29.298260 7f518c71fa80 Options.compression[0]: NoCompression
+2021/03/13-23:25:29.298260 7f518c71fa80 Options.compression[1]: NoCompression
+2021/03/13-23:25:29.298261 7f518c71fa80 Options.compression[2]: Snappy
+2021/03/13-23:25:29.298262 7f518c71fa80 Options.compression[3]: Snappy
+2021/03/13-23:25:29.298262 7f518c71fa80 Options.compression[4]: Snappy
+2021/03/13-23:25:29.298263 7f518c71fa80 Options.compression[5]: Snappy
+2021/03/13-23:25:29.298264 7f518c71fa80 Options.compression[6]: Snappy
+2021/03/13-23:25:29.298264 7f518c71fa80 Options.bottommost_compression: Disabled
+2021/03/13-23:25:29.298265 7f518c71fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:25:29.298266 7f518c71fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:25:29.298266 7f518c71fa80 Options.num_levels: 7
+2021/03/13-23:25:29.298267 7f518c71fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:25:29.298268 7f518c71fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:25:29.298268 7f518c71fa80 Options.compression_opts.window_bits: -14
+2021/03/13-23:25:29.298269 7f518c71fa80 Options.compression_opts.level: -1
+2021/03/13-23:25:29.298270 7f518c71fa80 Options.compression_opts.strategy: 0
+2021/03/13-23:25:29.298270 7f518c71fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:25:29.298271 7f518c71fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:25:29.298271 7f518c71fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:25:29.298272 7f518c71fa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:25:29.298273 7f518c71fa80 Options.target_file_size_base: 67108864
+2021/03/13-23:25:29.298273 7f518c71fa80 Options.target_file_size_multiplier: 1
+2021/03/13-23:25:29.298274 7f518c71fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:25:29.298275 7f518c71fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:25:29.298275 7f518c71fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:25:29.298277 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:25:29.298286 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:25:29.298287 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:25:29.298288 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:25:29.298288 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:25:29.298289 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:25:29.298290 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:25:29.298290 7f518c71fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:25:29.298291 7f518c71fa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:25:29.298292 7f518c71fa80 Options.arena_block_size: 16777216
+2021/03/13-23:25:29.298292 7f518c71fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:25:29.298293 7f518c71fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:25:29.298294 7f518c71fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:25:29.298294 7f518c71fa80 Options.disable_auto_compactions: 0
+2021/03/13-23:25:29.298296 7f518c71fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:25:29.298297 7f518c71fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:25:29.298297 7f518c71fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:25:29.298298 7f518c71fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:25:29.298299 7f518c71fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:25:29.298299 7f518c71fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:25:29.298300 7f518c71fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:25:29.298301 7f518c71fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:25:29.298302 7f518c71fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:25:29.298302 7f518c71fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:25:29.298303 7f518c71fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:25:29.298304 7f518c71fa80 Options.table_properties_collectors:
+2021/03/13-23:25:29.298304 7f518c71fa80 Options.inplace_update_support: 0
+2021/03/13-23:25:29.298305 7f518c71fa80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:25:29.298306 7f518c71fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:25:29.298307 7f518c71fa80 Options.memtable_huge_page_size: 0
+2021/03/13-23:25:29.298307 7f518c71fa80 Options.bloom_locality: 0
+2021/03/13-23:25:29.298308 7f518c71fa80 Options.max_successive_merges: 0
+2021/03/13-23:25:29.298309 7f518c71fa80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:25:29.298309 7f518c71fa80 Options.paranoid_file_checks: 0
+2021/03/13-23:25:29.298310 7f518c71fa80 Options.force_consistency_checks: 0
+2021/03/13-23:25:29.298310 7f518c71fa80 Options.report_bg_io_stats: 0
+2021/03/13-23:25:29.298768 7f518c71fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:25:29.298771 7f518c71fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:25:29.298882 7f518c71fa80 EVENT_LOG_v1 {"time_micros": 1615674329298866, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:25:29.298889 7f518c71fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:25:29.994126 7f518c71fa80 EVENT_LOG_v1 {"time_micros": 1615674329994123, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674330709281 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674330709281
new file mode 100644
index 0000000..01d6b3c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674330709281
@@ -0,0 +1,186 @@
+2021/03/13-23:25:30.007253 7f518c71fa80 RocksDB version: 5.11.3
+2021/03/13-23:25:30.007318 7f518c71fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:25:30.007319 7f518c71fa80 Compile date Mar 13 2021
+2021/03/13-23:25:30.007321 7f518c71fa80 DB SUMMARY
+2021/03/13-23:25:30.007376 7f518c71fa80 CURRENT file: CURRENT
+2021/03/13-23:25:30.007377 7f518c71fa80 IDENTITY file: IDENTITY
+2021/03/13-23:25:30.007383 7f518c71fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:25:30.007384 7f518c71fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:25:30.007385 7f518c71fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:25:30.007388 7f518c71fa80 Options.error_if_exists: 0
+2021/03/13-23:25:30.007389 7f518c71fa80 Options.create_if_missing: 1
+2021/03/13-23:25:30.007389 7f518c71fa80 Options.paranoid_checks: 1
+2021/03/13-23:25:30.007390 7f518c71fa80 Options.env: 0x7f518d0d9080
+2021/03/13-23:25:30.007391 7f518c71fa80 Options.info_log: 0x2416ca0
+2021/03/13-23:25:30.007391 7f518c71fa80 Options.max_file_opening_threads: 16
+2021/03/13-23:25:30.007392 7f518c71fa80 Options.statistics: (nil)
+2021/03/13-23:25:30.007392 7f518c71fa80 Options.use_fsync: 0
+2021/03/13-23:25:30.007393 7f518c71fa80 Options.max_log_file_size: 0
+2021/03/13-23:25:30.007394 7f518c71fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:25:30.007394 7f518c71fa80 Options.log_file_time_to_roll: 0
+2021/03/13-23:25:30.007395 7f518c71fa80 Options.keep_log_file_num: 1000
+2021/03/13-23:25:30.007395 7f518c71fa80 Options.recycle_log_file_num: 0
+2021/03/13-23:25:30.007396 7f518c71fa80 Options.allow_fallocate: 1
+2021/03/13-23:25:30.007397 7f518c71fa80 Options.allow_mmap_reads: 0
+2021/03/13-23:25:30.007397 7f518c71fa80 Options.allow_mmap_writes: 0
+2021/03/13-23:25:30.007398 7f518c71fa80 Options.use_direct_reads: 0
+2021/03/13-23:25:30.007398 7f518c71fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:25:30.007399 7f518c71fa80 Options.create_missing_column_families: 0
+2021/03/13-23:25:30.007399 7f518c71fa80 Options.db_log_dir:
+2021/03/13-23:25:30.007400 7f518c71fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:25:30.007401 7f518c71fa80 Options.table_cache_numshardbits: 6
+2021/03/13-23:25:30.007401 7f518c71fa80 Options.max_subcompactions: 1
+2021/03/13-23:25:30.007402 7f518c71fa80 Options.max_background_flushes: -1
+2021/03/13-23:25:30.007402 7f518c71fa80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:25:30.007403 7f518c71fa80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:25:30.007403 7f518c71fa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:25:30.007404 7f518c71fa80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:25:30.007405 7f518c71fa80 Options.advise_random_on_open: 1
+2021/03/13-23:25:30.007405 7f518c71fa80 Options.db_write_buffer_size: 0
+2021/03/13-23:25:30.007406 7f518c71fa80 Options.write_buffer_manager: 0x23feb90
+2021/03/13-23:25:30.007406 7f518c71fa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:25:30.007407 7f518c71fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:25:30.007407 7f518c71fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:25:30.007408 7f518c71fa80 Options.use_adaptive_mutex: 0
+2021/03/13-23:25:30.007409 7f518c71fa80 Options.rate_limiter: (nil)
+2021/03/13-23:25:30.007410 7f518c71fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:25:30.007417 7f518c71fa80 Options.wal_recovery_mode: 2
+2021/03/13-23:25:30.007418 7f518c71fa80 Options.enable_thread_tracking: 0
+2021/03/13-23:25:30.007419 7f518c71fa80 Options.enable_pipelined_write: 0
+2021/03/13-23:25:30.007419 7f518c71fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:25:30.007420 7f518c71fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:25:30.007420 7f518c71fa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:25:30.007421 7f518c71fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:25:30.007421 7f518c71fa80 Options.row_cache: None
+2021/03/13-23:25:30.007422 7f518c71fa80 Options.wal_filter: None
+2021/03/13-23:25:30.007423 7f518c71fa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:25:30.007423 7f518c71fa80 Options.allow_ingest_behind: 0
+2021/03/13-23:25:30.007424 7f518c71fa80 Options.preserve_deletes: 0
+2021/03/13-23:25:30.007424 7f518c71fa80 Options.two_write_queues: 0
+2021/03/13-23:25:30.007425 7f518c71fa80 Options.manual_wal_flush: 0
+2021/03/13-23:25:30.007426 7f518c71fa80 Options.max_background_jobs: 16
+2021/03/13-23:25:30.007427 7f518c71fa80 Options.max_background_compactions: -1
+2021/03/13-23:25:30.007427 7f518c71fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:25:30.007428 7f518c71fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:25:30.007428 7f518c71fa80 Options.delayed_write_rate : 16777216
+2021/03/13-23:25:30.007429 7f518c71fa80 Options.max_total_wal_size: 0
+2021/03/13-23:25:30.007430 7f518c71fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:25:30.007430 7f518c71fa80 Options.stats_dump_period_sec: 600
+2021/03/13-23:25:30.007431 7f518c71fa80 Options.max_open_files: -1
+2021/03/13-23:25:30.007431 7f518c71fa80 Options.bytes_per_sync: 0
+2021/03/13-23:25:30.007432 7f518c71fa80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:25:30.007432 7f518c71fa80 Options.compaction_readahead_size: 0
+2021/03/13-23:25:30.007433 7f518c71fa80 Compression algorithms supported:
+2021/03/13-23:25:30.007433 7f518c71fa80 Snappy supported: 1
+2021/03/13-23:25:30.007434 7f518c71fa80 Zlib supported: 1
+2021/03/13-23:25:30.007435 7f518c71fa80 Bzip supported: 1
+2021/03/13-23:25:30.007435 7f518c71fa80 LZ4 supported: 1
+2021/03/13-23:25:30.007436 7f518c71fa80 ZSTDNotFinal supported: 1
+2021/03/13-23:25:30.007440 7f518c71fa80 ZSTD supported: 1
+2021/03/13-23:25:30.007443 7f518c71fa80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:25:30.007444 7f518c71fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:25:30.007536 7f518c71fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:25:30.007590 7f518c71fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:25:30.007592 7f518c71fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:25:30.007592 7f518c71fa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:25:30.007593 7f518c71fa80 Options.compaction_filter: None
+2021/03/13-23:25:30.007594 7f518c71fa80 Options.compaction_filter_factory: None
+2021/03/13-23:25:30.007594 7f518c71fa80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:25:30.007595 7f518c71fa80 Options.table_factory: BlockBasedTable
+2021/03/13-23:25:30.007609 7f518c71fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x240e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x23f3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:25:30.007610 7f518c71fa80 Options.write_buffer_size: 134217728
+2021/03/13-23:25:30.007610 7f518c71fa80 Options.max_write_buffer_number: 6
+2021/03/13-23:25:30.007611 7f518c71fa80 Options.compression[0]: NoCompression
+2021/03/13-23:25:30.007612 7f518c71fa80 Options.compression[1]: NoCompression
+2021/03/13-23:25:30.007613 7f518c71fa80 Options.compression[2]: Snappy
+2021/03/13-23:25:30.007613 7f518c71fa80 Options.compression[3]: Snappy
+2021/03/13-23:25:30.007614 7f518c71fa80 Options.compression[4]: Snappy
+2021/03/13-23:25:30.007614 7f518c71fa80 Options.compression[5]: Snappy
+2021/03/13-23:25:30.007615 7f518c71fa80 Options.compression[6]: Snappy
+2021/03/13-23:25:30.007616 7f518c71fa80 Options.bottommost_compression: Disabled
+2021/03/13-23:25:30.007616 7f518c71fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:25:30.007617 7f518c71fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:25:30.007617 7f518c71fa80 Options.num_levels: 7
+2021/03/13-23:25:30.007618 7f518c71fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:25:30.007619 7f518c71fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:25:30.007619 7f518c71fa80 Options.compression_opts.window_bits: -14
+2021/03/13-23:25:30.007620 7f518c71fa80 Options.compression_opts.level: -1
+2021/03/13-23:25:30.007620 7f518c71fa80 Options.compression_opts.strategy: 0
+2021/03/13-23:25:30.007621 7f518c71fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:25:30.007622 7f518c71fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:25:30.007622 7f518c71fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:25:30.007623 7f518c71fa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:25:30.007623 7f518c71fa80 Options.target_file_size_base: 67108864
+2021/03/13-23:25:30.007624 7f518c71fa80 Options.target_file_size_multiplier: 1
+2021/03/13-23:25:30.007624 7f518c71fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:25:30.007625 7f518c71fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:25:30.007626 7f518c71fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:25:30.007627 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:25:30.007635 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:25:30.007636 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:25:30.007636 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:25:30.007637 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:25:30.007637 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:25:30.007638 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:25:30.007639 7f518c71fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:25:30.007639 7f518c71fa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:25:30.007640 7f518c71fa80 Options.arena_block_size: 16777216
+2021/03/13-23:25:30.007640 7f518c71fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:25:30.007641 7f518c71fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:25:30.007642 7f518c71fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:25:30.007642 7f518c71fa80 Options.disable_auto_compactions: 0
+2021/03/13-23:25:30.007644 7f518c71fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:25:30.007645 7f518c71fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:25:30.007645 7f518c71fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:25:30.007646 7f518c71fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:25:30.007647 7f518c71fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:25:30.007647 7f518c71fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:25:30.007648 7f518c71fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:25:30.007649 7f518c71fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:25:30.007649 7f518c71fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:25:30.007650 7f518c71fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:25:30.007650 7f518c71fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:25:30.007651 7f518c71fa80 Options.table_properties_collectors:
+2021/03/13-23:25:30.007652 7f518c71fa80 Options.inplace_update_support: 0
+2021/03/13-23:25:30.007652 7f518c71fa80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:25:30.007653 7f518c71fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:25:30.007654 7f518c71fa80 Options.memtable_huge_page_size: 0
+2021/03/13-23:25:30.007654 7f518c71fa80 Options.bloom_locality: 0
+2021/03/13-23:25:30.007655 7f518c71fa80 Options.max_successive_merges: 0
+2021/03/13-23:25:30.007655 7f518c71fa80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:25:30.007656 7f518c71fa80 Options.paranoid_file_checks: 0
+2021/03/13-23:25:30.007656 7f518c71fa80 Options.force_consistency_checks: 0
+2021/03/13-23:25:30.007657 7f518c71fa80 Options.report_bg_io_stats: 0
+2021/03/13-23:25:30.008019 7f518c71fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:25:30.008022 7f518c71fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:25:30.008098 7f518c71fa80 EVENT_LOG_v1 {"time_micros": 1615674330008088, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:25:30.008103 7f518c71fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:25:30.696445 7f518c71fa80 EVENT_LOG_v1 {"time_micros": 1615674330696442, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674331401297 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674331401297
new file mode 100644
index 0000000..beca77b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674331401297
@@ -0,0 +1,186 @@
+2021/03/13-23:25:30.709582 7f518c71fa80 RocksDB version: 5.11.3
+2021/03/13-23:25:30.709642 7f518c71fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:25:30.709643 7f518c71fa80 Compile date Mar 13 2021
+2021/03/13-23:25:30.709645 7f518c71fa80 DB SUMMARY
+2021/03/13-23:25:30.709699 7f518c71fa80 CURRENT file: CURRENT
+2021/03/13-23:25:30.709700 7f518c71fa80 IDENTITY file: IDENTITY
+2021/03/13-23:25:30.709705 7f518c71fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:25:30.709707 7f518c71fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:25:30.709707 7f518c71fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:25:30.709711 7f518c71fa80 Options.error_if_exists: 0
+2021/03/13-23:25:30.709711 7f518c71fa80 Options.create_if_missing: 1
+2021/03/13-23:25:30.709712 7f518c71fa80 Options.paranoid_checks: 1
+2021/03/13-23:25:30.709713 7f518c71fa80 Options.env: 0x7f518d0d9080
+2021/03/13-23:25:30.709713 7f518c71fa80 Options.info_log: 0x2416ca0
+2021/03/13-23:25:30.709714 7f518c71fa80 Options.max_file_opening_threads: 16
+2021/03/13-23:25:30.709714 7f518c71fa80 Options.statistics: (nil)
+2021/03/13-23:25:30.709715 7f518c71fa80 Options.use_fsync: 0
+2021/03/13-23:25:30.709716 7f518c71fa80 Options.max_log_file_size: 0
+2021/03/13-23:25:30.709716 7f518c71fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:25:30.709717 7f518c71fa80 Options.log_file_time_to_roll: 0
+2021/03/13-23:25:30.709717 7f518c71fa80 Options.keep_log_file_num: 1000
+2021/03/13-23:25:30.709718 7f518c71fa80 Options.recycle_log_file_num: 0
+2021/03/13-23:25:30.709718 7f518c71fa80 Options.allow_fallocate: 1
+2021/03/13-23:25:30.709719 7f518c71fa80 Options.allow_mmap_reads: 0
+2021/03/13-23:25:30.709720 7f518c71fa80 Options.allow_mmap_writes: 0
+2021/03/13-23:25:30.709720 7f518c71fa80 Options.use_direct_reads: 0
+2021/03/13-23:25:30.709721 7f518c71fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:25:30.709721 7f518c71fa80 Options.create_missing_column_families: 0
+2021/03/13-23:25:30.709722 7f518c71fa80 Options.db_log_dir:
+2021/03/13-23:25:30.709722 7f518c71fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:25:30.709723 7f518c71fa80 Options.table_cache_numshardbits: 6
+2021/03/13-23:25:30.709723 7f518c71fa80 Options.max_subcompactions: 1
+2021/03/13-23:25:30.709724 7f518c71fa80 Options.max_background_flushes: -1
+2021/03/13-23:25:30.709725 7f518c71fa80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:25:30.709725 7f518c71fa80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:25:30.709726 7f518c71fa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:25:30.709726 7f518c71fa80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:25:30.709727 7f518c71fa80 Options.advise_random_on_open: 1
+2021/03/13-23:25:30.709727 7f518c71fa80 Options.db_write_buffer_size: 0
+2021/03/13-23:25:30.709728 7f518c71fa80 Options.write_buffer_manager: 0x23feb90
+2021/03/13-23:25:30.709729 7f518c71fa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:25:30.709729 7f518c71fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:25:30.709730 7f518c71fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:25:30.709730 7f518c71fa80 Options.use_adaptive_mutex: 0
+2021/03/13-23:25:30.709731 7f518c71fa80 Options.rate_limiter: (nil)
+2021/03/13-23:25:30.709732 7f518c71fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:25:30.709739 7f518c71fa80 Options.wal_recovery_mode: 2
+2021/03/13-23:25:30.709740 7f518c71fa80 Options.enable_thread_tracking: 0
+2021/03/13-23:25:30.709740 7f518c71fa80 Options.enable_pipelined_write: 0
+2021/03/13-23:25:30.709741 7f518c71fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:25:30.709741 7f518c71fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:25:30.709742 7f518c71fa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:25:30.709742 7f518c71fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:25:30.709743 7f518c71fa80 Options.row_cache: None
+2021/03/13-23:25:30.709743 7f518c71fa80 Options.wal_filter: None
+2021/03/13-23:25:30.709744 7f518c71fa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:25:30.709745 7f518c71fa80 Options.allow_ingest_behind: 0
+2021/03/13-23:25:30.709745 7f518c71fa80 Options.preserve_deletes: 0
+2021/03/13-23:25:30.709746 7f518c71fa80 Options.two_write_queues: 0
+2021/03/13-23:25:30.709746 7f518c71fa80 Options.manual_wal_flush: 0
+2021/03/13-23:25:30.709748 7f518c71fa80 Options.max_background_jobs: 16
+2021/03/13-23:25:30.709748 7f518c71fa80 Options.max_background_compactions: -1
+2021/03/13-23:25:30.709749 7f518c71fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:25:30.709749 7f518c71fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:25:30.709750 7f518c71fa80 Options.delayed_write_rate : 16777216
+2021/03/13-23:25:30.709750 7f518c71fa80 Options.max_total_wal_size: 0
+2021/03/13-23:25:30.709751 7f518c71fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:25:30.709752 7f518c71fa80 Options.stats_dump_period_sec: 600
+2021/03/13-23:25:30.709752 7f518c71fa80 Options.max_open_files: -1
+2021/03/13-23:25:30.709753 7f518c71fa80 Options.bytes_per_sync: 0
+2021/03/13-23:25:30.709753 7f518c71fa80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:25:30.709754 7f518c71fa80 Options.compaction_readahead_size: 0
+2021/03/13-23:25:30.709754 7f518c71fa80 Compression algorithms supported:
+2021/03/13-23:25:30.709755 7f518c71fa80 Snappy supported: 1
+2021/03/13-23:25:30.709756 7f518c71fa80 Zlib supported: 1
+2021/03/13-23:25:30.709756 7f518c71fa80 Bzip supported: 1
+2021/03/13-23:25:30.709757 7f518c71fa80 LZ4 supported: 1
+2021/03/13-23:25:30.709757 7f518c71fa80 ZSTDNotFinal supported: 1
+2021/03/13-23:25:30.709761 7f518c71fa80 ZSTD supported: 1
+2021/03/13-23:25:30.709764 7f518c71fa80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:25:30.709765 7f518c71fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:25:30.709857 7f518c71fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:25:30.709910 7f518c71fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:25:30.709912 7f518c71fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:25:30.709913 7f518c71fa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:25:30.709913 7f518c71fa80 Options.compaction_filter: None
+2021/03/13-23:25:30.709914 7f518c71fa80 Options.compaction_filter_factory: None
+2021/03/13-23:25:30.709914 7f518c71fa80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:25:30.709915 7f518c71fa80 Options.table_factory: BlockBasedTable
+2021/03/13-23:25:30.709930 7f518c71fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x240e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x23f3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:25:30.709931 7f518c71fa80 Options.write_buffer_size: 134217728
+2021/03/13-23:25:30.709932 7f518c71fa80 Options.max_write_buffer_number: 6
+2021/03/13-23:25:30.709932 7f518c71fa80 Options.compression[0]: NoCompression
+2021/03/13-23:25:30.709933 7f518c71fa80 Options.compression[1]: NoCompression
+2021/03/13-23:25:30.709934 7f518c71fa80 Options.compression[2]: Snappy
+2021/03/13-23:25:30.709934 7f518c71fa80 Options.compression[3]: Snappy
+2021/03/13-23:25:30.709935 7f518c71fa80 Options.compression[4]: Snappy
+2021/03/13-23:25:30.709935 7f518c71fa80 Options.compression[5]: Snappy
+2021/03/13-23:25:30.709936 7f518c71fa80 Options.compression[6]: Snappy
+2021/03/13-23:25:30.709937 7f518c71fa80 Options.bottommost_compression: Disabled
+2021/03/13-23:25:30.709937 7f518c71fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:25:30.709938 7f518c71fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:25:30.709939 7f518c71fa80 Options.num_levels: 7
+2021/03/13-23:25:30.709939 7f518c71fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:25:30.709940 7f518c71fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:25:30.709940 7f518c71fa80 Options.compression_opts.window_bits: -14
+2021/03/13-23:25:30.709941 7f518c71fa80 Options.compression_opts.level: -1
+2021/03/13-23:25:30.709941 7f518c71fa80 Options.compression_opts.strategy: 0
+2021/03/13-23:25:30.709942 7f518c71fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:25:30.709942 7f518c71fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:25:30.709943 7f518c71fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:25:30.709944 7f518c71fa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:25:30.709944 7f518c71fa80 Options.target_file_size_base: 67108864
+2021/03/13-23:25:30.709945 7f518c71fa80 Options.target_file_size_multiplier: 1
+2021/03/13-23:25:30.709945 7f518c71fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:25:30.709946 7f518c71fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:25:30.709947 7f518c71fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:25:30.709948 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:25:30.709956 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:25:30.709956 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:25:30.709957 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:25:30.709958 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:25:30.709958 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:25:30.709959 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:25:30.709959 7f518c71fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:25:30.709960 7f518c71fa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:25:30.709960 7f518c71fa80 Options.arena_block_size: 16777216
+2021/03/13-23:25:30.709961 7f518c71fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:25:30.709962 7f518c71fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:25:30.709962 7f518c71fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:25:30.709963 7f518c71fa80 Options.disable_auto_compactions: 0
+2021/03/13-23:25:30.709964 7f518c71fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:25:30.709965 7f518c71fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:25:30.709966 7f518c71fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:25:30.709966 7f518c71fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:25:30.709967 7f518c71fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:25:30.709967 7f518c71fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:25:30.709968 7f518c71fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:25:30.709969 7f518c71fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:25:30.709969 7f518c71fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:25:30.709970 7f518c71fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:25:30.709970 7f518c71fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:25:30.709971 7f518c71fa80 Options.table_properties_collectors:
+2021/03/13-23:25:30.709972 7f518c71fa80 Options.inplace_update_support: 0
+2021/03/13-23:25:30.709972 7f518c71fa80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:25:30.709973 7f518c71fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:25:30.709974 7f518c71fa80 Options.memtable_huge_page_size: 0
+2021/03/13-23:25:30.709974 7f518c71fa80 Options.bloom_locality: 0
+2021/03/13-23:25:30.709975 7f518c71fa80 Options.max_successive_merges: 0
+2021/03/13-23:25:30.709975 7f518c71fa80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:25:30.709976 7f518c71fa80 Options.paranoid_file_checks: 0
+2021/03/13-23:25:30.709976 7f518c71fa80 Options.force_consistency_checks: 0
+2021/03/13-23:25:30.709977 7f518c71fa80 Options.report_bg_io_stats: 0
+2021/03/13-23:25:30.710381 7f518c71fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:25:30.710384 7f518c71fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:25:30.710464 7f518c71fa80 EVENT_LOG_v1 {"time_micros": 1615674330710454, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:25:30.710469 7f518c71fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:25:31.386946 7f518c71fa80 EVENT_LOG_v1 {"time_micros": 1615674331386942, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674372159793 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674372159793
new file mode 100644
index 0000000..1445933
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674372159793
@@ -0,0 +1,186 @@
+2021/03/13-23:25:31.401600 7f518c71fa80 RocksDB version: 5.11.3
+2021/03/13-23:25:31.401660 7f518c71fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:25:31.401662 7f518c71fa80 Compile date Mar 13 2021
+2021/03/13-23:25:31.401664 7f518c71fa80 DB SUMMARY
+2021/03/13-23:25:31.401717 7f518c71fa80 CURRENT file: CURRENT
+2021/03/13-23:25:31.401718 7f518c71fa80 IDENTITY file: IDENTITY
+2021/03/13-23:25:31.401724 7f518c71fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:25:31.401725 7f518c71fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:25:31.401726 7f518c71fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:25:31.401729 7f518c71fa80 Options.error_if_exists: 0
+2021/03/13-23:25:31.401730 7f518c71fa80 Options.create_if_missing: 1
+2021/03/13-23:25:31.401730 7f518c71fa80 Options.paranoid_checks: 1
+2021/03/13-23:25:31.401731 7f518c71fa80 Options.env: 0x7f518d0d9080
+2021/03/13-23:25:31.401731 7f518c71fa80 Options.info_log: 0x2416ca0
+2021/03/13-23:25:31.401732 7f518c71fa80 Options.max_file_opening_threads: 16
+2021/03/13-23:25:31.401733 7f518c71fa80 Options.statistics: (nil)
+2021/03/13-23:25:31.401733 7f518c71fa80 Options.use_fsync: 0
+2021/03/13-23:25:31.401734 7f518c71fa80 Options.max_log_file_size: 0
+2021/03/13-23:25:31.401734 7f518c71fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:25:31.401735 7f518c71fa80 Options.log_file_time_to_roll: 0
+2021/03/13-23:25:31.401736 7f518c71fa80 Options.keep_log_file_num: 1000
+2021/03/13-23:25:31.401736 7f518c71fa80 Options.recycle_log_file_num: 0
+2021/03/13-23:25:31.401737 7f518c71fa80 Options.allow_fallocate: 1
+2021/03/13-23:25:31.401737 7f518c71fa80 Options.allow_mmap_reads: 0
+2021/03/13-23:25:31.401738 7f518c71fa80 Options.allow_mmap_writes: 0
+2021/03/13-23:25:31.401738 7f518c71fa80 Options.use_direct_reads: 0
+2021/03/13-23:25:31.401739 7f518c71fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:25:31.401740 7f518c71fa80 Options.create_missing_column_families: 0
+2021/03/13-23:25:31.401740 7f518c71fa80 Options.db_log_dir:
+2021/03/13-23:25:31.401741 7f518c71fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:25:31.401741 7f518c71fa80 Options.table_cache_numshardbits: 6
+2021/03/13-23:25:31.401742 7f518c71fa80 Options.max_subcompactions: 1
+2021/03/13-23:25:31.401742 7f518c71fa80 Options.max_background_flushes: -1
+2021/03/13-23:25:31.401743 7f518c71fa80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:25:31.401744 7f518c71fa80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:25:31.401744 7f518c71fa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:25:31.401745 7f518c71fa80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:25:31.401745 7f518c71fa80 Options.advise_random_on_open: 1
+2021/03/13-23:25:31.401746 7f518c71fa80 Options.db_write_buffer_size: 0
+2021/03/13-23:25:31.401746 7f518c71fa80 Options.write_buffer_manager: 0x23feb90
+2021/03/13-23:25:31.401747 7f518c71fa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:25:31.401748 7f518c71fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:25:31.401748 7f518c71fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:25:31.401749 7f518c71fa80 Options.use_adaptive_mutex: 0
+2021/03/13-23:25:31.401749 7f518c71fa80 Options.rate_limiter: (nil)
+2021/03/13-23:25:31.401751 7f518c71fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:25:31.401758 7f518c71fa80 Options.wal_recovery_mode: 2
+2021/03/13-23:25:31.401759 7f518c71fa80 Options.enable_thread_tracking: 0
+2021/03/13-23:25:31.401759 7f518c71fa80 Options.enable_pipelined_write: 0
+2021/03/13-23:25:31.401760 7f518c71fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:25:31.401760 7f518c71fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:25:31.401761 7f518c71fa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:25:31.401761 7f518c71fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:25:31.401762 7f518c71fa80 Options.row_cache: None
+2021/03/13-23:25:31.401763 7f518c71fa80 Options.wal_filter: None
+2021/03/13-23:25:31.401763 7f518c71fa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:25:31.401764 7f518c71fa80 Options.allow_ingest_behind: 0
+2021/03/13-23:25:31.401764 7f518c71fa80 Options.preserve_deletes: 0
+2021/03/13-23:25:31.401765 7f518c71fa80 Options.two_write_queues: 0
+2021/03/13-23:25:31.401765 7f518c71fa80 Options.manual_wal_flush: 0
+2021/03/13-23:25:31.401767 7f518c71fa80 Options.max_background_jobs: 16
+2021/03/13-23:25:31.401767 7f518c71fa80 Options.max_background_compactions: -1
+2021/03/13-23:25:31.401768 7f518c71fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:25:31.401768 7f518c71fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:25:31.401769 7f518c71fa80 Options.delayed_write_rate : 16777216
+2021/03/13-23:25:31.401770 7f518c71fa80 Options.max_total_wal_size: 0
+2021/03/13-23:25:31.401770 7f518c71fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:25:31.401771 7f518c71fa80 Options.stats_dump_period_sec: 600
+2021/03/13-23:25:31.401771 7f518c71fa80 Options.max_open_files: -1
+2021/03/13-23:25:31.401772 7f518c71fa80 Options.bytes_per_sync: 0
+2021/03/13-23:25:31.401772 7f518c71fa80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:25:31.401773 7f518c71fa80 Options.compaction_readahead_size: 0
+2021/03/13-23:25:31.401773 7f518c71fa80 Compression algorithms supported:
+2021/03/13-23:25:31.401774 7f518c71fa80 Snappy supported: 1
+2021/03/13-23:25:31.401775 7f518c71fa80 Zlib supported: 1
+2021/03/13-23:25:31.401775 7f518c71fa80 Bzip supported: 1
+2021/03/13-23:25:31.401776 7f518c71fa80 LZ4 supported: 1
+2021/03/13-23:25:31.401776 7f518c71fa80 ZSTDNotFinal supported: 1
+2021/03/13-23:25:31.401780 7f518c71fa80 ZSTD supported: 1
+2021/03/13-23:25:31.401783 7f518c71fa80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:25:31.401784 7f518c71fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:25:31.401875 7f518c71fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:25:31.401928 7f518c71fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:25:31.401930 7f518c71fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:25:31.401931 7f518c71fa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:25:31.401931 7f518c71fa80 Options.compaction_filter: None
+2021/03/13-23:25:31.401932 7f518c71fa80 Options.compaction_filter_factory: None
+2021/03/13-23:25:31.401932 7f518c71fa80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:25:31.401933 7f518c71fa80 Options.table_factory: BlockBasedTable
+2021/03/13-23:25:31.401948 7f518c71fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x240e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x23f3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:25:31.401948 7f518c71fa80 Options.write_buffer_size: 134217728
+2021/03/13-23:25:31.401949 7f518c71fa80 Options.max_write_buffer_number: 6
+2021/03/13-23:25:31.401950 7f518c71fa80 Options.compression[0]: NoCompression
+2021/03/13-23:25:31.401951 7f518c71fa80 Options.compression[1]: NoCompression
+2021/03/13-23:25:31.401951 7f518c71fa80 Options.compression[2]: Snappy
+2021/03/13-23:25:31.401952 7f518c71fa80 Options.compression[3]: Snappy
+2021/03/13-23:25:31.401952 7f518c71fa80 Options.compression[4]: Snappy
+2021/03/13-23:25:31.401953 7f518c71fa80 Options.compression[5]: Snappy
+2021/03/13-23:25:31.401953 7f518c71fa80 Options.compression[6]: Snappy
+2021/03/13-23:25:31.401954 7f518c71fa80 Options.bottommost_compression: Disabled
+2021/03/13-23:25:31.401955 7f518c71fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:25:31.401955 7f518c71fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:25:31.401956 7f518c71fa80 Options.num_levels: 7
+2021/03/13-23:25:31.401957 7f518c71fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:25:31.401957 7f518c71fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:25:31.401958 7f518c71fa80 Options.compression_opts.window_bits: -14
+2021/03/13-23:25:31.401958 7f518c71fa80 Options.compression_opts.level: -1
+2021/03/13-23:25:31.401959 7f518c71fa80 Options.compression_opts.strategy: 0
+2021/03/13-23:25:31.401959 7f518c71fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:25:31.401960 7f518c71fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:25:31.401960 7f518c71fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:25:31.401961 7f518c71fa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:25:31.401962 7f518c71fa80 Options.target_file_size_base: 67108864
+2021/03/13-23:25:31.401962 7f518c71fa80 Options.target_file_size_multiplier: 1
+2021/03/13-23:25:31.401963 7f518c71fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:25:31.401963 7f518c71fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:25:31.401964 7f518c71fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:25:31.401965 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:25:31.401973 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:25:31.401974 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:25:31.401974 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:25:31.401975 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:25:31.401975 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:25:31.401976 7f518c71fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:25:31.401977 7f518c71fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:25:31.401977 7f518c71fa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:25:31.401978 7f518c71fa80 Options.arena_block_size: 16777216
+2021/03/13-23:25:31.401978 7f518c71fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:25:31.401979 7f518c71fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:25:31.401979 7f518c71fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:25:31.401980 7f518c71fa80 Options.disable_auto_compactions: 0
+2021/03/13-23:25:31.401982 7f518c71fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:25:31.401982 7f518c71fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:25:31.401983 7f518c71fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:25:31.401984 7f518c71fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:25:31.401984 7f518c71fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:25:31.401985 7f518c71fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:25:31.401985 7f518c71fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:25:31.401986 7f518c71fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:25:31.401987 7f518c71fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:25:31.401987 7f518c71fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:25:31.401988 7f518c71fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:25:31.401988 7f518c71fa80 Options.table_properties_collectors:
+2021/03/13-23:25:31.401989 7f518c71fa80 Options.inplace_update_support: 0
+2021/03/13-23:25:31.401990 7f518c71fa80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:25:31.401990 7f518c71fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:25:31.401991 7f518c71fa80 Options.memtable_huge_page_size: 0
+2021/03/13-23:25:31.401992 7f518c71fa80 Options.bloom_locality: 0
+2021/03/13-23:25:31.401992 7f518c71fa80 Options.max_successive_merges: 0
+2021/03/13-23:25:31.401993 7f518c71fa80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:25:31.401993 7f518c71fa80 Options.paranoid_file_checks: 0
+2021/03/13-23:25:31.401994 7f518c71fa80 Options.force_consistency_checks: 0
+2021/03/13-23:25:31.401994 7f518c71fa80 Options.report_bg_io_stats: 0
+2021/03/13-23:25:31.402363 7f518c71fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:25:31.402366 7f518c71fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:25:31.402443 7f518c71fa80 EVENT_LOG_v1 {"time_micros": 1615674331402433, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:25:31.402448 7f518c71fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:25:32.081659 7f518c71fa80 EVENT_LOG_v1 {"time_micros": 1615674332081656, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674372867191 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674372867191
new file mode 100644
index 0000000..e2eebf9
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674372867191
@@ -0,0 +1,186 @@
+2021/03/13-23:26:12.160155 7fac497d6a80 RocksDB version: 5.11.3
+2021/03/13-23:26:12.160221 7fac497d6a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:26:12.160223 7fac497d6a80 Compile date Mar 13 2021
+2021/03/13-23:26:12.160229 7fac497d6a80 DB SUMMARY
+2021/03/13-23:26:12.160298 7fac497d6a80 CURRENT file: CURRENT
+2021/03/13-23:26:12.160299 7fac497d6a80 IDENTITY file: IDENTITY
+2021/03/13-23:26:12.160305 7fac497d6a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:26:12.160306 7fac497d6a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:26:12.160307 7fac497d6a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:26:12.160311 7fac497d6a80 Options.error_if_exists: 0
+2021/03/13-23:26:12.160312 7fac497d6a80 Options.create_if_missing: 1
+2021/03/13-23:26:12.160313 7fac497d6a80 Options.paranoid_checks: 1
+2021/03/13-23:26:12.160313 7fac497d6a80 Options.env: 0x7fac4a190080
+2021/03/13-23:26:12.160314 7fac497d6a80 Options.info_log: 0x2f2eca0
+2021/03/13-23:26:12.160315 7fac497d6a80 Options.max_file_opening_threads: 16
+2021/03/13-23:26:12.160315 7fac497d6a80 Options.statistics: (nil)
+2021/03/13-23:26:12.160316 7fac497d6a80 Options.use_fsync: 0
+2021/03/13-23:26:12.160317 7fac497d6a80 Options.max_log_file_size: 0
+2021/03/13-23:26:12.160317 7fac497d6a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:26:12.160318 7fac497d6a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:26:12.160319 7fac497d6a80 Options.keep_log_file_num: 1000
+2021/03/13-23:26:12.160319 7fac497d6a80 Options.recycle_log_file_num: 0
+2021/03/13-23:26:12.160320 7fac497d6a80 Options.allow_fallocate: 1
+2021/03/13-23:26:12.160321 7fac497d6a80 Options.allow_mmap_reads: 0
+2021/03/13-23:26:12.160321 7fac497d6a80 Options.allow_mmap_writes: 0
+2021/03/13-23:26:12.160322 7fac497d6a80 Options.use_direct_reads: 0
+2021/03/13-23:26:12.160322 7fac497d6a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:26:12.160323 7fac497d6a80 Options.create_missing_column_families: 0
+2021/03/13-23:26:12.160324 7fac497d6a80 Options.db_log_dir:
+2021/03/13-23:26:12.160324 7fac497d6a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:26:12.160325 7fac497d6a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:26:12.160326 7fac497d6a80 Options.max_subcompactions: 1
+2021/03/13-23:26:12.160326 7fac497d6a80 Options.max_background_flushes: -1
+2021/03/13-23:26:12.160327 7fac497d6a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:26:12.160328 7fac497d6a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:26:12.160328 7fac497d6a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:26:12.160329 7fac497d6a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:26:12.160329 7fac497d6a80 Options.advise_random_on_open: 1
+2021/03/13-23:26:12.160330 7fac497d6a80 Options.db_write_buffer_size: 0
+2021/03/13-23:26:12.160331 7fac497d6a80 Options.write_buffer_manager: 0x2f16b90
+2021/03/13-23:26:12.160331 7fac497d6a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:26:12.160332 7fac497d6a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:26:12.160333 7fac497d6a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:26:12.160333 7fac497d6a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:26:12.160334 7fac497d6a80 Options.rate_limiter: (nil)
+2021/03/13-23:26:12.160335 7fac497d6a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:26:12.160344 7fac497d6a80 Options.wal_recovery_mode: 2
+2021/03/13-23:26:12.160345 7fac497d6a80 Options.enable_thread_tracking: 0
+2021/03/13-23:26:12.160346 7fac497d6a80 Options.enable_pipelined_write: 0
+2021/03/13-23:26:12.160347 7fac497d6a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:26:12.160347 7fac497d6a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:26:12.160348 7fac497d6a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:26:12.160348 7fac497d6a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:26:12.160349 7fac497d6a80 Options.row_cache: None
+2021/03/13-23:26:12.160350 7fac497d6a80 Options.wal_filter: None
+2021/03/13-23:26:12.160350 7fac497d6a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:26:12.160351 7fac497d6a80 Options.allow_ingest_behind: 0
+2021/03/13-23:26:12.160352 7fac497d6a80 Options.preserve_deletes: 0
+2021/03/13-23:26:12.160352 7fac497d6a80 Options.two_write_queues: 0
+2021/03/13-23:26:12.160353 7fac497d6a80 Options.manual_wal_flush: 0
+2021/03/13-23:26:12.160354 7fac497d6a80 Options.max_background_jobs: 16
+2021/03/13-23:26:12.160355 7fac497d6a80 Options.max_background_compactions: -1
+2021/03/13-23:26:12.160355 7fac497d6a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:26:12.160356 7fac497d6a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:26:12.160357 7fac497d6a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:26:12.160357 7fac497d6a80 Options.max_total_wal_size: 0
+2021/03/13-23:26:12.160358 7fac497d6a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:26:12.160359 7fac497d6a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:26:12.160359 7fac497d6a80 Options.max_open_files: -1
+2021/03/13-23:26:12.160360 7fac497d6a80 Options.bytes_per_sync: 0
+2021/03/13-23:26:12.160361 7fac497d6a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:26:12.160361 7fac497d6a80 Options.compaction_readahead_size: 0
+2021/03/13-23:26:12.160362 7fac497d6a80 Compression algorithms supported:
+2021/03/13-23:26:12.160362 7fac497d6a80 Snappy supported: 1
+2021/03/13-23:26:12.160363 7fac497d6a80 Zlib supported: 1
+2021/03/13-23:26:12.160364 7fac497d6a80 Bzip supported: 1
+2021/03/13-23:26:12.160364 7fac497d6a80 LZ4 supported: 1
+2021/03/13-23:26:12.160365 7fac497d6a80 ZSTDNotFinal supported: 1
+2021/03/13-23:26:12.160370 7fac497d6a80 ZSTD supported: 1
+2021/03/13-23:26:12.160373 7fac497d6a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:26:12.160375 7fac497d6a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:26:12.160480 7fac497d6a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:26:12.160538 7fac497d6a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:26:12.160540 7fac497d6a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:26:12.160541 7fac497d6a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:26:12.160542 7fac497d6a80 Options.compaction_filter: None
+2021/03/13-23:26:12.160542 7fac497d6a80 Options.compaction_filter_factory: None
+2021/03/13-23:26:12.160543 7fac497d6a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:26:12.160544 7fac497d6a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:26:12.160559 7fac497d6a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2f26520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2f0bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:26:12.160560 7fac497d6a80 Options.write_buffer_size: 134217728
+2021/03/13-23:26:12.160561 7fac497d6a80 Options.max_write_buffer_number: 6
+2021/03/13-23:26:12.160562 7fac497d6a80 Options.compression[0]: NoCompression
+2021/03/13-23:26:12.160563 7fac497d6a80 Options.compression[1]: NoCompression
+2021/03/13-23:26:12.160563 7fac497d6a80 Options.compression[2]: Snappy
+2021/03/13-23:26:12.160564 7fac497d6a80 Options.compression[3]: Snappy
+2021/03/13-23:26:12.160565 7fac497d6a80 Options.compression[4]: Snappy
+2021/03/13-23:26:12.160565 7fac497d6a80 Options.compression[5]: Snappy
+2021/03/13-23:26:12.160566 7fac497d6a80 Options.compression[6]: Snappy
+2021/03/13-23:26:12.160566 7fac497d6a80 Options.bottommost_compression: Disabled
+2021/03/13-23:26:12.160567 7fac497d6a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:26:12.160568 7fac497d6a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:26:12.160569 7fac497d6a80 Options.num_levels: 7
+2021/03/13-23:26:12.160569 7fac497d6a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:26:12.160570 7fac497d6a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:26:12.160571 7fac497d6a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:26:12.160571 7fac497d6a80 Options.compression_opts.level: -1
+2021/03/13-23:26:12.160572 7fac497d6a80 Options.compression_opts.strategy: 0
+2021/03/13-23:26:12.160572 7fac497d6a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:26:12.160573 7fac497d6a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:26:12.160574 7fac497d6a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:26:12.160574 7fac497d6a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:26:12.160575 7fac497d6a80 Options.target_file_size_base: 67108864
+2021/03/13-23:26:12.160576 7fac497d6a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:26:12.160576 7fac497d6a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:26:12.160577 7fac497d6a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:26:12.160578 7fac497d6a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:26:12.160579 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:26:12.160588 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:26:12.160589 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:26:12.160589 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:26:12.160590 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:26:12.160591 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:26:12.160591 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:26:12.160592 7fac497d6a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:26:12.160592 7fac497d6a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:26:12.160593 7fac497d6a80 Options.arena_block_size: 16777216
+2021/03/13-23:26:12.160594 7fac497d6a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:26:12.160595 7fac497d6a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:26:12.160595 7fac497d6a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:26:12.160596 7fac497d6a80 Options.disable_auto_compactions: 0
+2021/03/13-23:26:12.160597 7fac497d6a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:26:12.160598 7fac497d6a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:26:12.160599 7fac497d6a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:26:12.160600 7fac497d6a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:26:12.160600 7fac497d6a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:26:12.160601 7fac497d6a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:26:12.160602 7fac497d6a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:26:12.160603 7fac497d6a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:26:12.160603 7fac497d6a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:26:12.160604 7fac497d6a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:26:12.160605 7fac497d6a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:26:12.160605 7fac497d6a80 Options.table_properties_collectors:
+2021/03/13-23:26:12.160606 7fac497d6a80 Options.inplace_update_support: 0
+2021/03/13-23:26:12.160607 7fac497d6a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:26:12.160607 7fac497d6a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:26:12.160608 7fac497d6a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:26:12.160609 7fac497d6a80 Options.bloom_locality: 0
+2021/03/13-23:26:12.160610 7fac497d6a80 Options.max_successive_merges: 0
+2021/03/13-23:26:12.160610 7fac497d6a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:26:12.160611 7fac497d6a80 Options.paranoid_file_checks: 0
+2021/03/13-23:26:12.160611 7fac497d6a80 Options.force_consistency_checks: 0
+2021/03/13-23:26:12.160612 7fac497d6a80 Options.report_bg_io_stats: 0
+2021/03/13-23:26:12.161048 7fac497d6a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:26:12.161051 7fac497d6a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:26:12.161137 7fac497d6a80 EVENT_LOG_v1 {"time_micros": 1615674372161126, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:26:12.161143 7fac497d6a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:26:12.854592 7fac497d6a80 EVENT_LOG_v1 {"time_micros": 1615674372854589, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674373580514 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674373580514
new file mode 100644
index 0000000..a569bbd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674373580514
@@ -0,0 +1,186 @@
+2021/03/13-23:26:12.867510 7fac497d6a80 RocksDB version: 5.11.3
+2021/03/13-23:26:12.874908 7fac497d6a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:26:12.874917 7fac497d6a80 Compile date Mar 13 2021
+2021/03/13-23:26:12.874928 7fac497d6a80 DB SUMMARY
+2021/03/13-23:26:12.875021 7fac497d6a80 CURRENT file: CURRENT
+2021/03/13-23:26:12.875023 7fac497d6a80 IDENTITY file: IDENTITY
+2021/03/13-23:26:12.875028 7fac497d6a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:26:12.875030 7fac497d6a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:26:12.875031 7fac497d6a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:26:12.875035 7fac497d6a80 Options.error_if_exists: 0
+2021/03/13-23:26:12.875036 7fac497d6a80 Options.create_if_missing: 1
+2021/03/13-23:26:12.875036 7fac497d6a80 Options.paranoid_checks: 1
+2021/03/13-23:26:12.875037 7fac497d6a80 Options.env: 0x7fac4a190080
+2021/03/13-23:26:12.875038 7fac497d6a80 Options.info_log: 0x2f2eca0
+2021/03/13-23:26:12.875038 7fac497d6a80 Options.max_file_opening_threads: 16
+2021/03/13-23:26:12.875039 7fac497d6a80 Options.statistics: (nil)
+2021/03/13-23:26:12.875040 7fac497d6a80 Options.use_fsync: 0
+2021/03/13-23:26:12.875040 7fac497d6a80 Options.max_log_file_size: 0
+2021/03/13-23:26:12.875041 7fac497d6a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:26:12.875042 7fac497d6a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:26:12.875042 7fac497d6a80 Options.keep_log_file_num: 1000
+2021/03/13-23:26:12.875043 7fac497d6a80 Options.recycle_log_file_num: 0
+2021/03/13-23:26:12.875043 7fac497d6a80 Options.allow_fallocate: 1
+2021/03/13-23:26:12.875044 7fac497d6a80 Options.allow_mmap_reads: 0
+2021/03/13-23:26:12.875044 7fac497d6a80 Options.allow_mmap_writes: 0
+2021/03/13-23:26:12.875045 7fac497d6a80 Options.use_direct_reads: 0
+2021/03/13-23:26:12.875046 7fac497d6a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:26:12.875046 7fac497d6a80 Options.create_missing_column_families: 0
+2021/03/13-23:26:12.875047 7fac497d6a80 Options.db_log_dir:
+2021/03/13-23:26:12.875047 7fac497d6a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:26:12.875048 7fac497d6a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:26:12.875048 7fac497d6a80 Options.max_subcompactions: 1
+2021/03/13-23:26:12.875049 7fac497d6a80 Options.max_background_flushes: -1
+2021/03/13-23:26:12.875050 7fac497d6a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:26:12.875050 7fac497d6a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:26:12.875051 7fac497d6a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:26:12.875052 7fac497d6a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:26:12.875052 7fac497d6a80 Options.advise_random_on_open: 1
+2021/03/13-23:26:12.875053 7fac497d6a80 Options.db_write_buffer_size: 0
+2021/03/13-23:26:12.875053 7fac497d6a80 Options.write_buffer_manager: 0x2f16b90
+2021/03/13-23:26:12.875054 7fac497d6a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:26:12.875054 7fac497d6a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:26:12.875055 7fac497d6a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:26:12.875055 7fac497d6a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:26:12.875056 7fac497d6a80 Options.rate_limiter: (nil)
+2021/03/13-23:26:12.875058 7fac497d6a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:26:12.875067 7fac497d6a80 Options.wal_recovery_mode: 2
+2021/03/13-23:26:12.875068 7fac497d6a80 Options.enable_thread_tracking: 0
+2021/03/13-23:26:12.875069 7fac497d6a80 Options.enable_pipelined_write: 0
+2021/03/13-23:26:12.875069 7fac497d6a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:26:12.875070 7fac497d6a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:26:12.875070 7fac497d6a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:26:12.875071 7fac497d6a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:26:12.875071 7fac497d6a80 Options.row_cache: None
+2021/03/13-23:26:12.875072 7fac497d6a80 Options.wal_filter: None
+2021/03/13-23:26:12.875073 7fac497d6a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:26:12.875073 7fac497d6a80 Options.allow_ingest_behind: 0
+2021/03/13-23:26:12.875074 7fac497d6a80 Options.preserve_deletes: 0
+2021/03/13-23:26:12.875074 7fac497d6a80 Options.two_write_queues: 0
+2021/03/13-23:26:12.875075 7fac497d6a80 Options.manual_wal_flush: 0
+2021/03/13-23:26:12.875076 7fac497d6a80 Options.max_background_jobs: 16
+2021/03/13-23:26:12.875077 7fac497d6a80 Options.max_background_compactions: -1
+2021/03/13-23:26:12.875077 7fac497d6a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:26:12.875078 7fac497d6a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:26:12.875079 7fac497d6a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:26:12.875079 7fac497d6a80 Options.max_total_wal_size: 0
+2021/03/13-23:26:12.875080 7fac497d6a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:26:12.875080 7fac497d6a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:26:12.875081 7fac497d6a80 Options.max_open_files: -1
+2021/03/13-23:26:12.875082 7fac497d6a80 Options.bytes_per_sync: 0
+2021/03/13-23:26:12.875082 7fac497d6a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:26:12.875083 7fac497d6a80 Options.compaction_readahead_size: 0
+2021/03/13-23:26:12.875083 7fac497d6a80 Compression algorithms supported:
+2021/03/13-23:26:12.875084 7fac497d6a80 Snappy supported: 1
+2021/03/13-23:26:12.875085 7fac497d6a80 Zlib supported: 1
+2021/03/13-23:26:12.875085 7fac497d6a80 Bzip supported: 1
+2021/03/13-23:26:12.875086 7fac497d6a80 LZ4 supported: 1
+2021/03/13-23:26:12.875086 7fac497d6a80 ZSTDNotFinal supported: 1
+2021/03/13-23:26:12.875092 7fac497d6a80 ZSTD supported: 1
+2021/03/13-23:26:12.875097 7fac497d6a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:26:12.875099 7fac497d6a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:26:12.875263 7fac497d6a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:26:12.875333 7fac497d6a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:26:12.875335 7fac497d6a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:26:12.875336 7fac497d6a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:26:12.875336 7fac497d6a80 Options.compaction_filter: None
+2021/03/13-23:26:12.875337 7fac497d6a80 Options.compaction_filter_factory: None
+2021/03/13-23:26:12.875338 7fac497d6a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:26:12.875339 7fac497d6a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:26:12.875357 7fac497d6a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2f26520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2f0bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:26:12.875358 7fac497d6a80 Options.write_buffer_size: 134217728
+2021/03/13-23:26:12.875358 7fac497d6a80 Options.max_write_buffer_number: 6
+2021/03/13-23:26:12.875359 7fac497d6a80 Options.compression[0]: NoCompression
+2021/03/13-23:26:12.875360 7fac497d6a80 Options.compression[1]: NoCompression
+2021/03/13-23:26:12.875360 7fac497d6a80 Options.compression[2]: Snappy
+2021/03/13-23:26:12.875361 7fac497d6a80 Options.compression[3]: Snappy
+2021/03/13-23:26:12.875362 7fac497d6a80 Options.compression[4]: Snappy
+2021/03/13-23:26:12.875362 7fac497d6a80 Options.compression[5]: Snappy
+2021/03/13-23:26:12.875363 7fac497d6a80 Options.compression[6]: Snappy
+2021/03/13-23:26:12.875363 7fac497d6a80 Options.bottommost_compression: Disabled
+2021/03/13-23:26:12.875364 7fac497d6a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:26:12.875365 7fac497d6a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:26:12.875366 7fac497d6a80 Options.num_levels: 7
+2021/03/13-23:26:12.875366 7fac497d6a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:26:12.875367 7fac497d6a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:26:12.875368 7fac497d6a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:26:12.875368 7fac497d6a80 Options.compression_opts.level: -1
+2021/03/13-23:26:12.875369 7fac497d6a80 Options.compression_opts.strategy: 0
+2021/03/13-23:26:12.875369 7fac497d6a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:26:12.875370 7fac497d6a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:26:12.875371 7fac497d6a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:26:12.875371 7fac497d6a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:26:12.875372 7fac497d6a80 Options.target_file_size_base: 67108864
+2021/03/13-23:26:12.875372 7fac497d6a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:26:12.875373 7fac497d6a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:26:12.875374 7fac497d6a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:26:12.875374 7fac497d6a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:26:12.875376 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:26:12.875385 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:26:12.875386 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:26:12.875386 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:26:12.875387 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:26:12.875387 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:26:12.875388 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:26:12.875388 7fac497d6a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:26:12.875389 7fac497d6a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:26:12.875390 7fac497d6a80 Options.arena_block_size: 16777216
+2021/03/13-23:26:12.875390 7fac497d6a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:26:12.875391 7fac497d6a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:26:12.875392 7fac497d6a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:26:12.875392 7fac497d6a80 Options.disable_auto_compactions: 0
+2021/03/13-23:26:12.875394 7fac497d6a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:26:12.875395 7fac497d6a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:26:12.875396 7fac497d6a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:26:12.875396 7fac497d6a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:26:12.875397 7fac497d6a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:26:12.875397 7fac497d6a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:26:12.875398 7fac497d6a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:26:12.875399 7fac497d6a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:26:12.875400 7fac497d6a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:26:12.875400 7fac497d6a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:26:12.875401 7fac497d6a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:26:12.875402 7fac497d6a80 Options.table_properties_collectors:
+2021/03/13-23:26:12.875402 7fac497d6a80 Options.inplace_update_support: 0
+2021/03/13-23:26:12.875403 7fac497d6a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:26:12.875403 7fac497d6a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:26:12.875404 7fac497d6a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:26:12.875405 7fac497d6a80 Options.bloom_locality: 0
+2021/03/13-23:26:12.875405 7fac497d6a80 Options.max_successive_merges: 0
+2021/03/13-23:26:12.875406 7fac497d6a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:26:12.875407 7fac497d6a80 Options.paranoid_file_checks: 0
+2021/03/13-23:26:12.875407 7fac497d6a80 Options.force_consistency_checks: 0
+2021/03/13-23:26:12.875408 7fac497d6a80 Options.report_bg_io_stats: 0
+2021/03/13-23:26:12.876131 7fac497d6a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:26:12.876135 7fac497d6a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:26:12.876228 7fac497d6a80 EVENT_LOG_v1 {"time_micros": 1615674372876216, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:26:12.876235 7fac497d6a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:26:13.567078 7fac497d6a80 EVENT_LOG_v1 {"time_micros": 1615674373567074, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674374286623 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674374286623
new file mode 100644
index 0000000..20da822
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674374286623
@@ -0,0 +1,186 @@
+2021/03/13-23:26:13.580829 7fac497d6a80 RocksDB version: 5.11.3
+2021/03/13-23:26:13.580886 7fac497d6a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:26:13.580888 7fac497d6a80 Compile date Mar 13 2021
+2021/03/13-23:26:13.580892 7fac497d6a80 DB SUMMARY
+2021/03/13-23:26:13.580946 7fac497d6a80 CURRENT file: CURRENT
+2021/03/13-23:26:13.580947 7fac497d6a80 IDENTITY file: IDENTITY
+2021/03/13-23:26:13.580953 7fac497d6a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:26:13.580954 7fac497d6a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:26:13.580955 7fac497d6a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:26:13.580958 7fac497d6a80 Options.error_if_exists: 0
+2021/03/13-23:26:13.580959 7fac497d6a80 Options.create_if_missing: 1
+2021/03/13-23:26:13.580959 7fac497d6a80 Options.paranoid_checks: 1
+2021/03/13-23:26:13.580960 7fac497d6a80 Options.env: 0x7fac4a190080
+2021/03/13-23:26:13.580960 7fac497d6a80 Options.info_log: 0x2f2eca0
+2021/03/13-23:26:13.580961 7fac497d6a80 Options.max_file_opening_threads: 16
+2021/03/13-23:26:13.580962 7fac497d6a80 Options.statistics: (nil)
+2021/03/13-23:26:13.580962 7fac497d6a80 Options.use_fsync: 0
+2021/03/13-23:26:13.580963 7fac497d6a80 Options.max_log_file_size: 0
+2021/03/13-23:26:13.580963 7fac497d6a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:26:13.580964 7fac497d6a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:26:13.580965 7fac497d6a80 Options.keep_log_file_num: 1000
+2021/03/13-23:26:13.580965 7fac497d6a80 Options.recycle_log_file_num: 0
+2021/03/13-23:26:13.580966 7fac497d6a80 Options.allow_fallocate: 1
+2021/03/13-23:26:13.580966 7fac497d6a80 Options.allow_mmap_reads: 0
+2021/03/13-23:26:13.580967 7fac497d6a80 Options.allow_mmap_writes: 0
+2021/03/13-23:26:13.580967 7fac497d6a80 Options.use_direct_reads: 0
+2021/03/13-23:26:13.580968 7fac497d6a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:26:13.580968 7fac497d6a80 Options.create_missing_column_families: 0
+2021/03/13-23:26:13.580969 7fac497d6a80 Options.db_log_dir:
+2021/03/13-23:26:13.580970 7fac497d6a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:26:13.580970 7fac497d6a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:26:13.580971 7fac497d6a80 Options.max_subcompactions: 1
+2021/03/13-23:26:13.580971 7fac497d6a80 Options.max_background_flushes: -1
+2021/03/13-23:26:13.580972 7fac497d6a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:26:13.580972 7fac497d6a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:26:13.580973 7fac497d6a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:26:13.580974 7fac497d6a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:26:13.580974 7fac497d6a80 Options.advise_random_on_open: 1
+2021/03/13-23:26:13.580975 7fac497d6a80 Options.db_write_buffer_size: 0
+2021/03/13-23:26:13.580975 7fac497d6a80 Options.write_buffer_manager: 0x2f16b90
+2021/03/13-23:26:13.580976 7fac497d6a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:26:13.580976 7fac497d6a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:26:13.580977 7fac497d6a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:26:13.580977 7fac497d6a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:26:13.580978 7fac497d6a80 Options.rate_limiter: (nil)
+2021/03/13-23:26:13.580979 7fac497d6a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:26:13.580987 7fac497d6a80 Options.wal_recovery_mode: 2
+2021/03/13-23:26:13.580987 7fac497d6a80 Options.enable_thread_tracking: 0
+2021/03/13-23:26:13.580988 7fac497d6a80 Options.enable_pipelined_write: 0
+2021/03/13-23:26:13.580988 7fac497d6a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:26:13.580989 7fac497d6a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:26:13.580989 7fac497d6a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:26:13.580990 7fac497d6a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:26:13.580991 7fac497d6a80 Options.row_cache: None
+2021/03/13-23:26:13.580991 7fac497d6a80 Options.wal_filter: None
+2021/03/13-23:26:13.580992 7fac497d6a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:26:13.580992 7fac497d6a80 Options.allow_ingest_behind: 0
+2021/03/13-23:26:13.580993 7fac497d6a80 Options.preserve_deletes: 0
+2021/03/13-23:26:13.580993 7fac497d6a80 Options.two_write_queues: 0
+2021/03/13-23:26:13.580994 7fac497d6a80 Options.manual_wal_flush: 0
+2021/03/13-23:26:13.580995 7fac497d6a80 Options.max_background_jobs: 16
+2021/03/13-23:26:13.580996 7fac497d6a80 Options.max_background_compactions: -1
+2021/03/13-23:26:13.580996 7fac497d6a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:26:13.580997 7fac497d6a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:26:13.580997 7fac497d6a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:26:13.580998 7fac497d6a80 Options.max_total_wal_size: 0
+2021/03/13-23:26:13.580999 7fac497d6a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:26:13.580999 7fac497d6a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:26:13.581000 7fac497d6a80 Options.max_open_files: -1
+2021/03/13-23:26:13.581000 7fac497d6a80 Options.bytes_per_sync: 0
+2021/03/13-23:26:13.581001 7fac497d6a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:26:13.581001 7fac497d6a80 Options.compaction_readahead_size: 0
+2021/03/13-23:26:13.581002 7fac497d6a80 Compression algorithms supported:
+2021/03/13-23:26:13.581003 7fac497d6a80 Snappy supported: 1
+2021/03/13-23:26:13.581003 7fac497d6a80 Zlib supported: 1
+2021/03/13-23:26:13.581004 7fac497d6a80 Bzip supported: 1
+2021/03/13-23:26:13.581004 7fac497d6a80 LZ4 supported: 1
+2021/03/13-23:26:13.581005 7fac497d6a80 ZSTDNotFinal supported: 1
+2021/03/13-23:26:13.581008 7fac497d6a80 ZSTD supported: 1
+2021/03/13-23:26:13.581012 7fac497d6a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:26:13.581013 7fac497d6a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:26:13.581103 7fac497d6a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:26:13.581154 7fac497d6a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:26:13.581156 7fac497d6a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:26:13.581157 7fac497d6a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:26:13.581158 7fac497d6a80 Options.compaction_filter: None
+2021/03/13-23:26:13.581158 7fac497d6a80 Options.compaction_filter_factory: None
+2021/03/13-23:26:13.581159 7fac497d6a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:26:13.581160 7fac497d6a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:26:13.581174 7fac497d6a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2f26520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2f0bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:26:13.581175 7fac497d6a80 Options.write_buffer_size: 134217728
+2021/03/13-23:26:13.581176 7fac497d6a80 Options.max_write_buffer_number: 6
+2021/03/13-23:26:13.581176 7fac497d6a80 Options.compression[0]: NoCompression
+2021/03/13-23:26:13.581177 7fac497d6a80 Options.compression[1]: NoCompression
+2021/03/13-23:26:13.581178 7fac497d6a80 Options.compression[2]: Snappy
+2021/03/13-23:26:13.581178 7fac497d6a80 Options.compression[3]: Snappy
+2021/03/13-23:26:13.581179 7fac497d6a80 Options.compression[4]: Snappy
+2021/03/13-23:26:13.581179 7fac497d6a80 Options.compression[5]: Snappy
+2021/03/13-23:26:13.581180 7fac497d6a80 Options.compression[6]: Snappy
+2021/03/13-23:26:13.581180 7fac497d6a80 Options.bottommost_compression: Disabled
+2021/03/13-23:26:13.581181 7fac497d6a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:26:13.581182 7fac497d6a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:26:13.581182 7fac497d6a80 Options.num_levels: 7
+2021/03/13-23:26:13.581183 7fac497d6a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:26:13.581183 7fac497d6a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:26:13.581184 7fac497d6a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:26:13.581185 7fac497d6a80 Options.compression_opts.level: -1
+2021/03/13-23:26:13.581185 7fac497d6a80 Options.compression_opts.strategy: 0
+2021/03/13-23:26:13.581186 7fac497d6a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:26:13.581186 7fac497d6a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:26:13.581187 7fac497d6a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:26:13.581187 7fac497d6a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:26:13.581188 7fac497d6a80 Options.target_file_size_base: 67108864
+2021/03/13-23:26:13.581189 7fac497d6a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:26:13.581189 7fac497d6a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:26:13.581190 7fac497d6a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:26:13.581190 7fac497d6a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:26:13.581192 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:26:13.581199 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:26:13.581200 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:26:13.581201 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:26:13.581201 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:26:13.581202 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:26:13.581202 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:26:13.581203 7fac497d6a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:26:13.581203 7fac497d6a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:26:13.581204 7fac497d6a80 Options.arena_block_size: 16777216
+2021/03/13-23:26:13.581205 7fac497d6a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:26:13.581205 7fac497d6a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:26:13.581206 7fac497d6a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:26:13.581206 7fac497d6a80 Options.disable_auto_compactions: 0
+2021/03/13-23:26:13.581208 7fac497d6a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:26:13.581209 7fac497d6a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:26:13.581209 7fac497d6a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:26:13.581210 7fac497d6a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:26:13.581210 7fac497d6a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:26:13.581211 7fac497d6a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:26:13.581212 7fac497d6a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:26:13.581213 7fac497d6a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:26:13.581213 7fac497d6a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:26:13.581214 7fac497d6a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:26:13.581214 7fac497d6a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:26:13.581215 7fac497d6a80 Options.table_properties_collectors:
+2021/03/13-23:26:13.581215 7fac497d6a80 Options.inplace_update_support: 0
+2021/03/13-23:26:13.581216 7fac497d6a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:26:13.581217 7fac497d6a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:26:13.581218 7fac497d6a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:26:13.581218 7fac497d6a80 Options.bloom_locality: 0
+2021/03/13-23:26:13.581219 7fac497d6a80 Options.max_successive_merges: 0
+2021/03/13-23:26:13.581219 7fac497d6a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:26:13.581220 7fac497d6a80 Options.paranoid_file_checks: 0
+2021/03/13-23:26:13.581220 7fac497d6a80 Options.force_consistency_checks: 0
+2021/03/13-23:26:13.581221 7fac497d6a80 Options.report_bg_io_stats: 0
+2021/03/13-23:26:13.581608 7fac497d6a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:26:13.581611 7fac497d6a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:26:13.581690 7fac497d6a80 EVENT_LOG_v1 {"time_micros": 1615674373581679, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:26:13.581695 7fac497d6a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:26:14.272496 7fac497d6a80 EVENT_LOG_v1 {"time_micros": 1615674374272493, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674553472383 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674553472383
new file mode 100644
index 0000000..83e1511
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674553472383
@@ -0,0 +1,186 @@
+2021/03/13-23:26:14.286946 7fac497d6a80 RocksDB version: 5.11.3
+2021/03/13-23:26:14.287001 7fac497d6a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:26:14.287003 7fac497d6a80 Compile date Mar 13 2021
+2021/03/13-23:26:14.287008 7fac497d6a80 DB SUMMARY
+2021/03/13-23:26:14.287063 7fac497d6a80 CURRENT file: CURRENT
+2021/03/13-23:26:14.287064 7fac497d6a80 IDENTITY file: IDENTITY
+2021/03/13-23:26:14.287069 7fac497d6a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:26:14.287071 7fac497d6a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:26:14.287071 7fac497d6a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:26:14.287075 7fac497d6a80 Options.error_if_exists: 0
+2021/03/13-23:26:14.287076 7fac497d6a80 Options.create_if_missing: 1
+2021/03/13-23:26:14.287076 7fac497d6a80 Options.paranoid_checks: 1
+2021/03/13-23:26:14.287077 7fac497d6a80 Options.env: 0x7fac4a190080
+2021/03/13-23:26:14.287077 7fac497d6a80 Options.info_log: 0x2f2eca0
+2021/03/13-23:26:14.287078 7fac497d6a80 Options.max_file_opening_threads: 16
+2021/03/13-23:26:14.287078 7fac497d6a80 Options.statistics: (nil)
+2021/03/13-23:26:14.287079 7fac497d6a80 Options.use_fsync: 0
+2021/03/13-23:26:14.287080 7fac497d6a80 Options.max_log_file_size: 0
+2021/03/13-23:26:14.287080 7fac497d6a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:26:14.287081 7fac497d6a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:26:14.287081 7fac497d6a80 Options.keep_log_file_num: 1000
+2021/03/13-23:26:14.287082 7fac497d6a80 Options.recycle_log_file_num: 0
+2021/03/13-23:26:14.287083 7fac497d6a80 Options.allow_fallocate: 1
+2021/03/13-23:26:14.287083 7fac497d6a80 Options.allow_mmap_reads: 0
+2021/03/13-23:26:14.287084 7fac497d6a80 Options.allow_mmap_writes: 0
+2021/03/13-23:26:14.287084 7fac497d6a80 Options.use_direct_reads: 0
+2021/03/13-23:26:14.287085 7fac497d6a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:26:14.287085 7fac497d6a80 Options.create_missing_column_families: 0
+2021/03/13-23:26:14.287086 7fac497d6a80 Options.db_log_dir:
+2021/03/13-23:26:14.287086 7fac497d6a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:26:14.287087 7fac497d6a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:26:14.287088 7fac497d6a80 Options.max_subcompactions: 1
+2021/03/13-23:26:14.287088 7fac497d6a80 Options.max_background_flushes: -1
+2021/03/13-23:26:14.287089 7fac497d6a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:26:14.287089 7fac497d6a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:26:14.287090 7fac497d6a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:26:14.287091 7fac497d6a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:26:14.287091 7fac497d6a80 Options.advise_random_on_open: 1
+2021/03/13-23:26:14.287092 7fac497d6a80 Options.db_write_buffer_size: 0
+2021/03/13-23:26:14.287092 7fac497d6a80 Options.write_buffer_manager: 0x2f16b90
+2021/03/13-23:26:14.287093 7fac497d6a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:26:14.287093 7fac497d6a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:26:14.287094 7fac497d6a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:26:14.287094 7fac497d6a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:26:14.287095 7fac497d6a80 Options.rate_limiter: (nil)
+2021/03/13-23:26:14.287096 7fac497d6a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:26:14.287104 7fac497d6a80 Options.wal_recovery_mode: 2
+2021/03/13-23:26:14.287105 7fac497d6a80 Options.enable_thread_tracking: 0
+2021/03/13-23:26:14.287105 7fac497d6a80 Options.enable_pipelined_write: 0
+2021/03/13-23:26:14.287106 7fac497d6a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:26:14.287106 7fac497d6a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:26:14.287107 7fac497d6a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:26:14.287107 7fac497d6a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:26:14.287108 7fac497d6a80 Options.row_cache: None
+2021/03/13-23:26:14.287108 7fac497d6a80 Options.wal_filter: None
+2021/03/13-23:26:14.287109 7fac497d6a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:26:14.287114 7fac497d6a80 Options.allow_ingest_behind: 0
+2021/03/13-23:26:14.287115 7fac497d6a80 Options.preserve_deletes: 0
+2021/03/13-23:26:14.287115 7fac497d6a80 Options.two_write_queues: 0
+2021/03/13-23:26:14.287116 7fac497d6a80 Options.manual_wal_flush: 0
+2021/03/13-23:26:14.287117 7fac497d6a80 Options.max_background_jobs: 16
+2021/03/13-23:26:14.287117 7fac497d6a80 Options.max_background_compactions: -1
+2021/03/13-23:26:14.287118 7fac497d6a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:26:14.287119 7fac497d6a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:26:14.287119 7fac497d6a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:26:14.287120 7fac497d6a80 Options.max_total_wal_size: 0
+2021/03/13-23:26:14.287120 7fac497d6a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:26:14.287121 7fac497d6a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:26:14.287121 7fac497d6a80 Options.max_open_files: -1
+2021/03/13-23:26:14.287122 7fac497d6a80 Options.bytes_per_sync: 0
+2021/03/13-23:26:14.287123 7fac497d6a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:26:14.287123 7fac497d6a80 Options.compaction_readahead_size: 0
+2021/03/13-23:26:14.287124 7fac497d6a80 Compression algorithms supported:
+2021/03/13-23:26:14.287124 7fac497d6a80 Snappy supported: 1
+2021/03/13-23:26:14.287125 7fac497d6a80 Zlib supported: 1
+2021/03/13-23:26:14.287125 7fac497d6a80 Bzip supported: 1
+2021/03/13-23:26:14.287126 7fac497d6a80 LZ4 supported: 1
+2021/03/13-23:26:14.287126 7fac497d6a80 ZSTDNotFinal supported: 1
+2021/03/13-23:26:14.287130 7fac497d6a80 ZSTD supported: 1
+2021/03/13-23:26:14.287134 7fac497d6a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:26:14.287135 7fac497d6a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:26:14.287225 7fac497d6a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:26:14.287287 7fac497d6a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:26:14.287290 7fac497d6a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:26:14.287290 7fac497d6a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:26:14.287291 7fac497d6a80 Options.compaction_filter: None
+2021/03/13-23:26:14.287292 7fac497d6a80 Options.compaction_filter_factory: None
+2021/03/13-23:26:14.287292 7fac497d6a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:26:14.287293 7fac497d6a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:26:14.287307 7fac497d6a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2f26520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2f0bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:26:14.287308 7fac497d6a80 Options.write_buffer_size: 134217728
+2021/03/13-23:26:14.287309 7fac497d6a80 Options.max_write_buffer_number: 6
+2021/03/13-23:26:14.287309 7fac497d6a80 Options.compression[0]: NoCompression
+2021/03/13-23:26:14.287310 7fac497d6a80 Options.compression[1]: NoCompression
+2021/03/13-23:26:14.287311 7fac497d6a80 Options.compression[2]: Snappy
+2021/03/13-23:26:14.287311 7fac497d6a80 Options.compression[3]: Snappy
+2021/03/13-23:26:14.287312 7fac497d6a80 Options.compression[4]: Snappy
+2021/03/13-23:26:14.287313 7fac497d6a80 Options.compression[5]: Snappy
+2021/03/13-23:26:14.287313 7fac497d6a80 Options.compression[6]: Snappy
+2021/03/13-23:26:14.287314 7fac497d6a80 Options.bottommost_compression: Disabled
+2021/03/13-23:26:14.287314 7fac497d6a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:26:14.287315 7fac497d6a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:26:14.287316 7fac497d6a80 Options.num_levels: 7
+2021/03/13-23:26:14.287316 7fac497d6a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:26:14.287317 7fac497d6a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:26:14.287317 7fac497d6a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:26:14.287318 7fac497d6a80 Options.compression_opts.level: -1
+2021/03/13-23:26:14.287319 7fac497d6a80 Options.compression_opts.strategy: 0
+2021/03/13-23:26:14.287319 7fac497d6a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:26:14.287320 7fac497d6a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:26:14.287320 7fac497d6a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:26:14.287321 7fac497d6a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:26:14.287321 7fac497d6a80 Options.target_file_size_base: 67108864
+2021/03/13-23:26:14.287322 7fac497d6a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:26:14.287323 7fac497d6a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:26:14.287323 7fac497d6a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:26:14.287324 7fac497d6a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:26:14.287325 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:26:14.287334 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:26:14.287335 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:26:14.287335 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:26:14.287336 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:26:14.287336 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:26:14.287337 7fac497d6a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:26:14.287337 7fac497d6a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:26:14.287338 7fac497d6a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:26:14.287338 7fac497d6a80 Options.arena_block_size: 16777216
+2021/03/13-23:26:14.287339 7fac497d6a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:26:14.287340 7fac497d6a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:26:14.287340 7fac497d6a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:26:14.287341 7fac497d6a80 Options.disable_auto_compactions: 0
+2021/03/13-23:26:14.287342 7fac497d6a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:26:14.287343 7fac497d6a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:26:14.287344 7fac497d6a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:26:14.287344 7fac497d6a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:26:14.287345 7fac497d6a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:26:14.287345 7fac497d6a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:26:14.287346 7fac497d6a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:26:14.287347 7fac497d6a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:26:14.287347 7fac497d6a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:26:14.287348 7fac497d6a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:26:14.287348 7fac497d6a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:26:14.287349 7fac497d6a80 Options.table_properties_collectors:
+2021/03/13-23:26:14.287350 7fac497d6a80 Options.inplace_update_support: 0
+2021/03/13-23:26:14.287350 7fac497d6a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:26:14.287351 7fac497d6a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:26:14.287352 7fac497d6a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:26:14.287352 7fac497d6a80 Options.bloom_locality: 0
+2021/03/13-23:26:14.287353 7fac497d6a80 Options.max_successive_merges: 0
+2021/03/13-23:26:14.287353 7fac497d6a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:26:14.287354 7fac497d6a80 Options.paranoid_file_checks: 0
+2021/03/13-23:26:14.287354 7fac497d6a80 Options.force_consistency_checks: 0
+2021/03/13-23:26:14.287355 7fac497d6a80 Options.report_bg_io_stats: 0
+2021/03/13-23:26:14.287786 7fac497d6a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:26:14.287789 7fac497d6a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:26:14.287870 7fac497d6a80 EVENT_LOG_v1 {"time_micros": 1615674374287859, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:26:14.287876 7fac497d6a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:26:14.969644 7fac497d6a80 EVENT_LOG_v1 {"time_micros": 1615674374969641, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674554189952 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674554189952
new file mode 100644
index 0000000..647adac
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674554189952
@@ -0,0 +1,186 @@
+2021/03/13-23:29:13.472730 7f68e992aa80 RocksDB version: 5.11.3
+2021/03/13-23:29:13.472795 7f68e992aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:29:13.472797 7f68e992aa80 Compile date Mar 13 2021
+2021/03/13-23:29:13.472803 7f68e992aa80 DB SUMMARY
+2021/03/13-23:29:13.472866 7f68e992aa80 CURRENT file: CURRENT
+2021/03/13-23:29:13.472867 7f68e992aa80 IDENTITY file: IDENTITY
+2021/03/13-23:29:13.472873 7f68e992aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:29:13.472875 7f68e992aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:29:13.472876 7f68e992aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:29:13.472879 7f68e992aa80 Options.error_if_exists: 0
+2021/03/13-23:29:13.472880 7f68e992aa80 Options.create_if_missing: 1
+2021/03/13-23:29:13.472881 7f68e992aa80 Options.paranoid_checks: 1
+2021/03/13-23:29:13.472881 7f68e992aa80 Options.env: 0x7f68ea2e4080
+2021/03/13-23:29:13.472882 7f68e992aa80 Options.info_log: 0x1fd2ca0
+2021/03/13-23:29:13.472883 7f68e992aa80 Options.max_file_opening_threads: 16
+2021/03/13-23:29:13.472883 7f68e992aa80 Options.statistics: (nil)
+2021/03/13-23:29:13.472884 7f68e992aa80 Options.use_fsync: 0
+2021/03/13-23:29:13.472885 7f68e992aa80 Options.max_log_file_size: 0
+2021/03/13-23:29:13.472885 7f68e992aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:29:13.472886 7f68e992aa80 Options.log_file_time_to_roll: 0
+2021/03/13-23:29:13.472887 7f68e992aa80 Options.keep_log_file_num: 1000
+2021/03/13-23:29:13.472887 7f68e992aa80 Options.recycle_log_file_num: 0
+2021/03/13-23:29:13.472888 7f68e992aa80 Options.allow_fallocate: 1
+2021/03/13-23:29:13.472889 7f68e992aa80 Options.allow_mmap_reads: 0
+2021/03/13-23:29:13.472889 7f68e992aa80 Options.allow_mmap_writes: 0
+2021/03/13-23:29:13.472890 7f68e992aa80 Options.use_direct_reads: 0
+2021/03/13-23:29:13.472891 7f68e992aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:29:13.472891 7f68e992aa80 Options.create_missing_column_families: 0
+2021/03/13-23:29:13.472892 7f68e992aa80 Options.db_log_dir:
+2021/03/13-23:29:13.472892 7f68e992aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:29:13.472893 7f68e992aa80 Options.table_cache_numshardbits: 6
+2021/03/13-23:29:13.472894 7f68e992aa80 Options.max_subcompactions: 1
+2021/03/13-23:29:13.472894 7f68e992aa80 Options.max_background_flushes: -1
+2021/03/13-23:29:13.472895 7f68e992aa80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:29:13.472896 7f68e992aa80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:29:13.472896 7f68e992aa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:29:13.472897 7f68e992aa80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:29:13.472897 7f68e992aa80 Options.advise_random_on_open: 1
+2021/03/13-23:29:13.472898 7f68e992aa80 Options.db_write_buffer_size: 0
+2021/03/13-23:29:13.472899 7f68e992aa80 Options.write_buffer_manager: 0x1fbab90
+2021/03/13-23:29:13.472899 7f68e992aa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:29:13.472900 7f68e992aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:29:13.472901 7f68e992aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:29:13.472901 7f68e992aa80 Options.use_adaptive_mutex: 0
+2021/03/13-23:29:13.472902 7f68e992aa80 Options.rate_limiter: (nil)
+2021/03/13-23:29:13.472903 7f68e992aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:29:13.472912 7f68e992aa80 Options.wal_recovery_mode: 2
+2021/03/13-23:29:13.472913 7f68e992aa80 Options.enable_thread_tracking: 0
+2021/03/13-23:29:13.472913 7f68e992aa80 Options.enable_pipelined_write: 0
+2021/03/13-23:29:13.472914 7f68e992aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:29:13.472914 7f68e992aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:29:13.472915 7f68e992aa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:29:13.472916 7f68e992aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:29:13.472916 7f68e992aa80 Options.row_cache: None
+2021/03/13-23:29:13.472917 7f68e992aa80 Options.wal_filter: None
+2021/03/13-23:29:13.472918 7f68e992aa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:29:13.472918 7f68e992aa80 Options.allow_ingest_behind: 0
+2021/03/13-23:29:13.472919 7f68e992aa80 Options.preserve_deletes: 0
+2021/03/13-23:29:13.472919 7f68e992aa80 Options.two_write_queues: 0
+2021/03/13-23:29:13.472920 7f68e992aa80 Options.manual_wal_flush: 0
+2021/03/13-23:29:13.472921 7f68e992aa80 Options.max_background_jobs: 16
+2021/03/13-23:29:13.472922 7f68e992aa80 Options.max_background_compactions: -1
+2021/03/13-23:29:13.472923 7f68e992aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:29:13.472923 7f68e992aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:29:13.472924 7f68e992aa80 Options.delayed_write_rate : 16777216
+2021/03/13-23:29:13.472924 7f68e992aa80 Options.max_total_wal_size: 0
+2021/03/13-23:29:13.472925 7f68e992aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:29:13.472926 7f68e992aa80 Options.stats_dump_period_sec: 600
+2021/03/13-23:29:13.472926 7f68e992aa80 Options.max_open_files: -1
+2021/03/13-23:29:13.472927 7f68e992aa80 Options.bytes_per_sync: 0
+2021/03/13-23:29:13.472928 7f68e992aa80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:29:13.472928 7f68e992aa80 Options.compaction_readahead_size: 0
+2021/03/13-23:29:13.472929 7f68e992aa80 Compression algorithms supported:
+2021/03/13-23:29:13.472929 7f68e992aa80 Snappy supported: 1
+2021/03/13-23:29:13.472930 7f68e992aa80 Zlib supported: 1
+2021/03/13-23:29:13.472931 7f68e992aa80 Bzip supported: 1
+2021/03/13-23:29:13.472931 7f68e992aa80 LZ4 supported: 1
+2021/03/13-23:29:13.472932 7f68e992aa80 ZSTDNotFinal supported: 1
+2021/03/13-23:29:13.472937 7f68e992aa80 ZSTD supported: 1
+2021/03/13-23:29:13.472940 7f68e992aa80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:29:13.472941 7f68e992aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:29:13.473045 7f68e992aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:29:13.473110 7f68e992aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:29:13.473112 7f68e992aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:29:13.473113 7f68e992aa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:29:13.473114 7f68e992aa80 Options.compaction_filter: None
+2021/03/13-23:29:13.473115 7f68e992aa80 Options.compaction_filter_factory: None
+2021/03/13-23:29:13.473115 7f68e992aa80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:29:13.473116 7f68e992aa80 Options.table_factory: BlockBasedTable
+2021/03/13-23:29:13.473131 7f68e992aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fca520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fafc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:29:13.473132 7f68e992aa80 Options.write_buffer_size: 134217728
+2021/03/13-23:29:13.473133 7f68e992aa80 Options.max_write_buffer_number: 6
+2021/03/13-23:29:13.473134 7f68e992aa80 Options.compression[0]: NoCompression
+2021/03/13-23:29:13.473134 7f68e992aa80 Options.compression[1]: NoCompression
+2021/03/13-23:29:13.473135 7f68e992aa80 Options.compression[2]: Snappy
+2021/03/13-23:29:13.473136 7f68e992aa80 Options.compression[3]: Snappy
+2021/03/13-23:29:13.473136 7f68e992aa80 Options.compression[4]: Snappy
+2021/03/13-23:29:13.473137 7f68e992aa80 Options.compression[5]: Snappy
+2021/03/13-23:29:13.473138 7f68e992aa80 Options.compression[6]: Snappy
+2021/03/13-23:29:13.473138 7f68e992aa80 Options.bottommost_compression: Disabled
+2021/03/13-23:29:13.473139 7f68e992aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:29:13.473140 7f68e992aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:29:13.473140 7f68e992aa80 Options.num_levels: 7
+2021/03/13-23:29:13.473141 7f68e992aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:29:13.473142 7f68e992aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:29:13.473142 7f68e992aa80 Options.compression_opts.window_bits: -14
+2021/03/13-23:29:13.473143 7f68e992aa80 Options.compression_opts.level: -1
+2021/03/13-23:29:13.473144 7f68e992aa80 Options.compression_opts.strategy: 0
+2021/03/13-23:29:13.473144 7f68e992aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:29:13.473145 7f68e992aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:29:13.473145 7f68e992aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:29:13.473146 7f68e992aa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:29:13.473147 7f68e992aa80 Options.target_file_size_base: 67108864
+2021/03/13-23:29:13.473147 7f68e992aa80 Options.target_file_size_multiplier: 1
+2021/03/13-23:29:13.473148 7f68e992aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:29:13.473149 7f68e992aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:29:13.473149 7f68e992aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:29:13.473151 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:29:13.473160 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:29:13.473161 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:29:13.473161 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:29:13.473162 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:29:13.473163 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:29:13.473163 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:29:13.473164 7f68e992aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:29:13.473165 7f68e992aa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:29:13.473165 7f68e992aa80 Options.arena_block_size: 16777216
+2021/03/13-23:29:13.473166 7f68e992aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:29:13.473167 7f68e992aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:29:13.473167 7f68e992aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:29:13.473168 7f68e992aa80 Options.disable_auto_compactions: 0
+2021/03/13-23:29:13.473170 7f68e992aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:29:13.473170 7f68e992aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:29:13.473171 7f68e992aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:29:13.473172 7f68e992aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:29:13.473172 7f68e992aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:29:13.473173 7f68e992aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:29:13.473174 7f68e992aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:29:13.473175 7f68e992aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:29:13.473175 7f68e992aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:29:13.473176 7f68e992aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:29:13.473177 7f68e992aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:29:13.473177 7f68e992aa80 Options.table_properties_collectors:
+2021/03/13-23:29:13.473178 7f68e992aa80 Options.inplace_update_support: 0
+2021/03/13-23:29:13.473179 7f68e992aa80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:29:13.473179 7f68e992aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:29:13.473180 7f68e992aa80 Options.memtable_huge_page_size: 0
+2021/03/13-23:29:13.473181 7f68e992aa80 Options.bloom_locality: 0
+2021/03/13-23:29:13.473181 7f68e992aa80 Options.max_successive_merges: 0
+2021/03/13-23:29:13.473182 7f68e992aa80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:29:13.473183 7f68e992aa80 Options.paranoid_file_checks: 0
+2021/03/13-23:29:13.473183 7f68e992aa80 Options.force_consistency_checks: 0
+2021/03/13-23:29:13.473184 7f68e992aa80 Options.report_bg_io_stats: 0
+2021/03/13-23:29:13.473613 7f68e992aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:29:13.473616 7f68e992aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:29:13.473703 7f68e992aa80 EVENT_LOG_v1 {"time_micros": 1615674553473692, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:29:13.473709 7f68e992aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:29:14.177112 7f68e992aa80 EVENT_LOG_v1 {"time_micros": 1615674554177108, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674554902839 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674554902839
new file mode 100644
index 0000000..2512e31
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674554902839
@@ -0,0 +1,186 @@
+2021/03/13-23:29:14.190286 7f68e992aa80 RocksDB version: 5.11.3
+2021/03/13-23:29:14.190351 7f68e992aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:29:14.190353 7f68e992aa80 Compile date Mar 13 2021
+2021/03/13-23:29:14.190357 7f68e992aa80 DB SUMMARY
+2021/03/13-23:29:14.190416 7f68e992aa80 CURRENT file: CURRENT
+2021/03/13-23:29:14.190417 7f68e992aa80 IDENTITY file: IDENTITY
+2021/03/13-23:29:14.190423 7f68e992aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:29:14.190424 7f68e992aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:29:14.190425 7f68e992aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:29:14.190428 7f68e992aa80 Options.error_if_exists: 0
+2021/03/13-23:29:14.190429 7f68e992aa80 Options.create_if_missing: 1
+2021/03/13-23:29:14.190430 7f68e992aa80 Options.paranoid_checks: 1
+2021/03/13-23:29:14.190430 7f68e992aa80 Options.env: 0x7f68ea2e4080
+2021/03/13-23:29:14.190431 7f68e992aa80 Options.info_log: 0x1fd2ca0
+2021/03/13-23:29:14.190431 7f68e992aa80 Options.max_file_opening_threads: 16
+2021/03/13-23:29:14.190432 7f68e992aa80 Options.statistics: (nil)
+2021/03/13-23:29:14.190433 7f68e992aa80 Options.use_fsync: 0
+2021/03/13-23:29:14.190433 7f68e992aa80 Options.max_log_file_size: 0
+2021/03/13-23:29:14.190434 7f68e992aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:29:14.190435 7f68e992aa80 Options.log_file_time_to_roll: 0
+2021/03/13-23:29:14.190435 7f68e992aa80 Options.keep_log_file_num: 1000
+2021/03/13-23:29:14.190436 7f68e992aa80 Options.recycle_log_file_num: 0
+2021/03/13-23:29:14.190436 7f68e992aa80 Options.allow_fallocate: 1
+2021/03/13-23:29:14.190437 7f68e992aa80 Options.allow_mmap_reads: 0
+2021/03/13-23:29:14.190438 7f68e992aa80 Options.allow_mmap_writes: 0
+2021/03/13-23:29:14.190438 7f68e992aa80 Options.use_direct_reads: 0
+2021/03/13-23:29:14.190439 7f68e992aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:29:14.190439 7f68e992aa80 Options.create_missing_column_families: 0
+2021/03/13-23:29:14.190440 7f68e992aa80 Options.db_log_dir:
+2021/03/13-23:29:14.190440 7f68e992aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:29:14.190441 7f68e992aa80 Options.table_cache_numshardbits: 6
+2021/03/13-23:29:14.190442 7f68e992aa80 Options.max_subcompactions: 1
+2021/03/13-23:29:14.190442 7f68e992aa80 Options.max_background_flushes: -1
+2021/03/13-23:29:14.190443 7f68e992aa80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:29:14.190443 7f68e992aa80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:29:14.190444 7f68e992aa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:29:14.190445 7f68e992aa80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:29:14.190445 7f68e992aa80 Options.advise_random_on_open: 1
+2021/03/13-23:29:14.190446 7f68e992aa80 Options.db_write_buffer_size: 0
+2021/03/13-23:29:14.190446 7f68e992aa80 Options.write_buffer_manager: 0x1fbab90
+2021/03/13-23:29:14.190447 7f68e992aa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:29:14.190447 7f68e992aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:29:14.190448 7f68e992aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:29:14.190449 7f68e992aa80 Options.use_adaptive_mutex: 0
+2021/03/13-23:29:14.190449 7f68e992aa80 Options.rate_limiter: (nil)
+2021/03/13-23:29:14.190451 7f68e992aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:29:14.190458 7f68e992aa80 Options.wal_recovery_mode: 2
+2021/03/13-23:29:14.190459 7f68e992aa80 Options.enable_thread_tracking: 0
+2021/03/13-23:29:14.190459 7f68e992aa80 Options.enable_pipelined_write: 0
+2021/03/13-23:29:14.190460 7f68e992aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:29:14.190460 7f68e992aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:29:14.190461 7f68e992aa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:29:14.190462 7f68e992aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:29:14.190462 7f68e992aa80 Options.row_cache: None
+2021/03/13-23:29:14.190463 7f68e992aa80 Options.wal_filter: None
+2021/03/13-23:29:14.190463 7f68e992aa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:29:14.190464 7f68e992aa80 Options.allow_ingest_behind: 0
+2021/03/13-23:29:14.190464 7f68e992aa80 Options.preserve_deletes: 0
+2021/03/13-23:29:14.190465 7f68e992aa80 Options.two_write_queues: 0
+2021/03/13-23:29:14.190466 7f68e992aa80 Options.manual_wal_flush: 0
+2021/03/13-23:29:14.190467 7f68e992aa80 Options.max_background_jobs: 16
+2021/03/13-23:29:14.190467 7f68e992aa80 Options.max_background_compactions: -1
+2021/03/13-23:29:14.190468 7f68e992aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:29:14.190468 7f68e992aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:29:14.190469 7f68e992aa80 Options.delayed_write_rate : 16777216
+2021/03/13-23:29:14.190470 7f68e992aa80 Options.max_total_wal_size: 0
+2021/03/13-23:29:14.190470 7f68e992aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:29:14.190471 7f68e992aa80 Options.stats_dump_period_sec: 600
+2021/03/13-23:29:14.190471 7f68e992aa80 Options.max_open_files: -1
+2021/03/13-23:29:14.190472 7f68e992aa80 Options.bytes_per_sync: 0
+2021/03/13-23:29:14.190473 7f68e992aa80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:29:14.190473 7f68e992aa80 Options.compaction_readahead_size: 0
+2021/03/13-23:29:14.190474 7f68e992aa80 Compression algorithms supported:
+2021/03/13-23:29:14.190474 7f68e992aa80 Snappy supported: 1
+2021/03/13-23:29:14.190475 7f68e992aa80 Zlib supported: 1
+2021/03/13-23:29:14.190475 7f68e992aa80 Bzip supported: 1
+2021/03/13-23:29:14.190476 7f68e992aa80 LZ4 supported: 1
+2021/03/13-23:29:14.190477 7f68e992aa80 ZSTDNotFinal supported: 1
+2021/03/13-23:29:14.190481 7f68e992aa80 ZSTD supported: 1
+2021/03/13-23:29:14.190484 7f68e992aa80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:29:14.190485 7f68e992aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:29:14.190576 7f68e992aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:29:14.190632 7f68e992aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:29:14.190633 7f68e992aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:29:14.190634 7f68e992aa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:29:14.190635 7f68e992aa80 Options.compaction_filter: None
+2021/03/13-23:29:14.190635 7f68e992aa80 Options.compaction_filter_factory: None
+2021/03/13-23:29:14.190636 7f68e992aa80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:29:14.190637 7f68e992aa80 Options.table_factory: BlockBasedTable
+2021/03/13-23:29:14.190650 7f68e992aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fca520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fafc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:29:14.190651 7f68e992aa80 Options.write_buffer_size: 134217728
+2021/03/13-23:29:14.190652 7f68e992aa80 Options.max_write_buffer_number: 6
+2021/03/13-23:29:14.190652 7f68e992aa80 Options.compression[0]: NoCompression
+2021/03/13-23:29:14.190653 7f68e992aa80 Options.compression[1]: NoCompression
+2021/03/13-23:29:14.190654 7f68e992aa80 Options.compression[2]: Snappy
+2021/03/13-23:29:14.190654 7f68e992aa80 Options.compression[3]: Snappy
+2021/03/13-23:29:14.190655 7f68e992aa80 Options.compression[4]: Snappy
+2021/03/13-23:29:14.190655 7f68e992aa80 Options.compression[5]: Snappy
+2021/03/13-23:29:14.190656 7f68e992aa80 Options.compression[6]: Snappy
+2021/03/13-23:29:14.190657 7f68e992aa80 Options.bottommost_compression: Disabled
+2021/03/13-23:29:14.190657 7f68e992aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:29:14.190658 7f68e992aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:29:14.190659 7f68e992aa80 Options.num_levels: 7
+2021/03/13-23:29:14.190659 7f68e992aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:29:14.190660 7f68e992aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:29:14.190660 7f68e992aa80 Options.compression_opts.window_bits: -14
+2021/03/13-23:29:14.190661 7f68e992aa80 Options.compression_opts.level: -1
+2021/03/13-23:29:14.190662 7f68e992aa80 Options.compression_opts.strategy: 0
+2021/03/13-23:29:14.190662 7f68e992aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:29:14.190663 7f68e992aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:29:14.190663 7f68e992aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:29:14.190664 7f68e992aa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:29:14.190664 7f68e992aa80 Options.target_file_size_base: 67108864
+2021/03/13-23:29:14.190665 7f68e992aa80 Options.target_file_size_multiplier: 1
+2021/03/13-23:29:14.190666 7f68e992aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:29:14.190666 7f68e992aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:29:14.190667 7f68e992aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:29:14.190668 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:29:14.190676 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:29:14.190677 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:29:14.190677 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:29:14.190678 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:29:14.190679 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:29:14.190679 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:29:14.190680 7f68e992aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:29:14.190680 7f68e992aa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:29:14.190681 7f68e992aa80 Options.arena_block_size: 16777216
+2021/03/13-23:29:14.190681 7f68e992aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:29:14.190682 7f68e992aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:29:14.190683 7f68e992aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:29:14.190683 7f68e992aa80 Options.disable_auto_compactions: 0
+2021/03/13-23:29:14.190685 7f68e992aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:29:14.190686 7f68e992aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:29:14.190686 7f68e992aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:29:14.190687 7f68e992aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:29:14.190687 7f68e992aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:29:14.190688 7f68e992aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:29:14.190689 7f68e992aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:29:14.190689 7f68e992aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:29:14.190690 7f68e992aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:29:14.190691 7f68e992aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:29:14.190691 7f68e992aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:29:14.190692 7f68e992aa80 Options.table_properties_collectors:
+2021/03/13-23:29:14.190692 7f68e992aa80 Options.inplace_update_support: 0
+2021/03/13-23:29:14.190693 7f68e992aa80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:29:14.190693 7f68e992aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:29:14.190694 7f68e992aa80 Options.memtable_huge_page_size: 0
+2021/03/13-23:29:14.190695 7f68e992aa80 Options.bloom_locality: 0
+2021/03/13-23:29:14.190695 7f68e992aa80 Options.max_successive_merges: 0
+2021/03/13-23:29:14.190696 7f68e992aa80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:29:14.190697 7f68e992aa80 Options.paranoid_file_checks: 0
+2021/03/13-23:29:14.190697 7f68e992aa80 Options.force_consistency_checks: 0
+2021/03/13-23:29:14.190698 7f68e992aa80 Options.report_bg_io_stats: 0
+2021/03/13-23:29:14.191079 7f68e992aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:29:14.191081 7f68e992aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:29:14.191160 7f68e992aa80 EVENT_LOG_v1 {"time_micros": 1615674554191150, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:29:14.191166 7f68e992aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:29:14.889627 7f68e992aa80 EVENT_LOG_v1 {"time_micros": 1615674554889624, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674555621938 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674555621938
new file mode 100644
index 0000000..9e67ad3
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674555621938
@@ -0,0 +1,186 @@
+2021/03/13-23:29:14.903162 7f68e992aa80 RocksDB version: 5.11.3
+2021/03/13-23:29:14.903220 7f68e992aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:29:14.903222 7f68e992aa80 Compile date Mar 13 2021
+2021/03/13-23:29:14.903226 7f68e992aa80 DB SUMMARY
+2021/03/13-23:29:14.903294 7f68e992aa80 CURRENT file: CURRENT
+2021/03/13-23:29:14.903295 7f68e992aa80 IDENTITY file: IDENTITY
+2021/03/13-23:29:14.903301 7f68e992aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:29:14.903302 7f68e992aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:29:14.903303 7f68e992aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:29:14.903306 7f68e992aa80 Options.error_if_exists: 0
+2021/03/13-23:29:14.903307 7f68e992aa80 Options.create_if_missing: 1
+2021/03/13-23:29:14.903308 7f68e992aa80 Options.paranoid_checks: 1
+2021/03/13-23:29:14.903308 7f68e992aa80 Options.env: 0x7f68ea2e4080
+2021/03/13-23:29:14.903309 7f68e992aa80 Options.info_log: 0x1fd2ca0
+2021/03/13-23:29:14.903309 7f68e992aa80 Options.max_file_opening_threads: 16
+2021/03/13-23:29:14.903310 7f68e992aa80 Options.statistics: (nil)
+2021/03/13-23:29:14.903311 7f68e992aa80 Options.use_fsync: 0
+2021/03/13-23:29:14.903311 7f68e992aa80 Options.max_log_file_size: 0
+2021/03/13-23:29:14.903312 7f68e992aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:29:14.903312 7f68e992aa80 Options.log_file_time_to_roll: 0
+2021/03/13-23:29:14.903313 7f68e992aa80 Options.keep_log_file_num: 1000
+2021/03/13-23:29:14.903314 7f68e992aa80 Options.recycle_log_file_num: 0
+2021/03/13-23:29:14.903314 7f68e992aa80 Options.allow_fallocate: 1
+2021/03/13-23:29:14.903315 7f68e992aa80 Options.allow_mmap_reads: 0
+2021/03/13-23:29:14.903315 7f68e992aa80 Options.allow_mmap_writes: 0
+2021/03/13-23:29:14.903316 7f68e992aa80 Options.use_direct_reads: 0
+2021/03/13-23:29:14.903316 7f68e992aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:29:14.903317 7f68e992aa80 Options.create_missing_column_families: 0
+2021/03/13-23:29:14.903318 7f68e992aa80 Options.db_log_dir:
+2021/03/13-23:29:14.903318 7f68e992aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:29:14.903319 7f68e992aa80 Options.table_cache_numshardbits: 6
+2021/03/13-23:29:14.903319 7f68e992aa80 Options.max_subcompactions: 1
+2021/03/13-23:29:14.903320 7f68e992aa80 Options.max_background_flushes: -1
+2021/03/13-23:29:14.903320 7f68e992aa80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:29:14.903321 7f68e992aa80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:29:14.903322 7f68e992aa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:29:14.903322 7f68e992aa80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:29:14.903323 7f68e992aa80 Options.advise_random_on_open: 1
+2021/03/13-23:29:14.903323 7f68e992aa80 Options.db_write_buffer_size: 0
+2021/03/13-23:29:14.903324 7f68e992aa80 Options.write_buffer_manager: 0x1fbab90
+2021/03/13-23:29:14.903325 7f68e992aa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:29:14.903325 7f68e992aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:29:14.903326 7f68e992aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:29:14.903326 7f68e992aa80 Options.use_adaptive_mutex: 0
+2021/03/13-23:29:14.903327 7f68e992aa80 Options.rate_limiter: (nil)
+2021/03/13-23:29:14.903328 7f68e992aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:29:14.903336 7f68e992aa80 Options.wal_recovery_mode: 2
+2021/03/13-23:29:14.903337 7f68e992aa80 Options.enable_thread_tracking: 0
+2021/03/13-23:29:14.903338 7f68e992aa80 Options.enable_pipelined_write: 0
+2021/03/13-23:29:14.903338 7f68e992aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:29:14.903339 7f68e992aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:29:14.903340 7f68e992aa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:29:14.903340 7f68e992aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:29:14.903341 7f68e992aa80 Options.row_cache: None
+2021/03/13-23:29:14.903341 7f68e992aa80 Options.wal_filter: None
+2021/03/13-23:29:14.903342 7f68e992aa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:29:14.903342 7f68e992aa80 Options.allow_ingest_behind: 0
+2021/03/13-23:29:14.903343 7f68e992aa80 Options.preserve_deletes: 0
+2021/03/13-23:29:14.903344 7f68e992aa80 Options.two_write_queues: 0
+2021/03/13-23:29:14.903344 7f68e992aa80 Options.manual_wal_flush: 0
+2021/03/13-23:29:14.903345 7f68e992aa80 Options.max_background_jobs: 16
+2021/03/13-23:29:14.903346 7f68e992aa80 Options.max_background_compactions: -1
+2021/03/13-23:29:14.903346 7f68e992aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:29:14.903347 7f68e992aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:29:14.903347 7f68e992aa80 Options.delayed_write_rate : 16777216
+2021/03/13-23:29:14.903348 7f68e992aa80 Options.max_total_wal_size: 0
+2021/03/13-23:29:14.903349 7f68e992aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:29:14.903349 7f68e992aa80 Options.stats_dump_period_sec: 600
+2021/03/13-23:29:14.903350 7f68e992aa80 Options.max_open_files: -1
+2021/03/13-23:29:14.903350 7f68e992aa80 Options.bytes_per_sync: 0
+2021/03/13-23:29:14.903351 7f68e992aa80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:29:14.903352 7f68e992aa80 Options.compaction_readahead_size: 0
+2021/03/13-23:29:14.903352 7f68e992aa80 Compression algorithms supported:
+2021/03/13-23:29:14.903353 7f68e992aa80 Snappy supported: 1
+2021/03/13-23:29:14.903353 7f68e992aa80 Zlib supported: 1
+2021/03/13-23:29:14.903354 7f68e992aa80 Bzip supported: 1
+2021/03/13-23:29:14.903354 7f68e992aa80 LZ4 supported: 1
+2021/03/13-23:29:14.903355 7f68e992aa80 ZSTDNotFinal supported: 1
+2021/03/13-23:29:14.903359 7f68e992aa80 ZSTD supported: 1
+2021/03/13-23:29:14.903362 7f68e992aa80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:29:14.903364 7f68e992aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:29:14.903454 7f68e992aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:29:14.903509 7f68e992aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:29:14.903511 7f68e992aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:29:14.903512 7f68e992aa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:29:14.903512 7f68e992aa80 Options.compaction_filter: None
+2021/03/13-23:29:14.903513 7f68e992aa80 Options.compaction_filter_factory: None
+2021/03/13-23:29:14.903513 7f68e992aa80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:29:14.903514 7f68e992aa80 Options.table_factory: BlockBasedTable
+2021/03/13-23:29:14.903528 7f68e992aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fca520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fafc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:29:14.903528 7f68e992aa80 Options.write_buffer_size: 134217728
+2021/03/13-23:29:14.903529 7f68e992aa80 Options.max_write_buffer_number: 6
+2021/03/13-23:29:14.903530 7f68e992aa80 Options.compression[0]: NoCompression
+2021/03/13-23:29:14.903530 7f68e992aa80 Options.compression[1]: NoCompression
+2021/03/13-23:29:14.903531 7f68e992aa80 Options.compression[2]: Snappy
+2021/03/13-23:29:14.903532 7f68e992aa80 Options.compression[3]: Snappy
+2021/03/13-23:29:14.903532 7f68e992aa80 Options.compression[4]: Snappy
+2021/03/13-23:29:14.903533 7f68e992aa80 Options.compression[5]: Snappy
+2021/03/13-23:29:14.903533 7f68e992aa80 Options.compression[6]: Snappy
+2021/03/13-23:29:14.903534 7f68e992aa80 Options.bottommost_compression: Disabled
+2021/03/13-23:29:14.903535 7f68e992aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:29:14.903536 7f68e992aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:29:14.903536 7f68e992aa80 Options.num_levels: 7
+2021/03/13-23:29:14.903537 7f68e992aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:29:14.903537 7f68e992aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:29:14.903538 7f68e992aa80 Options.compression_opts.window_bits: -14
+2021/03/13-23:29:14.903539 7f68e992aa80 Options.compression_opts.level: -1
+2021/03/13-23:29:14.903539 7f68e992aa80 Options.compression_opts.strategy: 0
+2021/03/13-23:29:14.903540 7f68e992aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:29:14.903540 7f68e992aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:29:14.903541 7f68e992aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:29:14.903541 7f68e992aa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:29:14.903542 7f68e992aa80 Options.target_file_size_base: 67108864
+2021/03/13-23:29:14.903543 7f68e992aa80 Options.target_file_size_multiplier: 1
+2021/03/13-23:29:14.903543 7f68e992aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:29:14.903544 7f68e992aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:29:14.903544 7f68e992aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:29:14.903546 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:29:14.903553 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:29:14.903554 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:29:14.903555 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:29:14.903555 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:29:14.903556 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:29:14.903556 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:29:14.903557 7f68e992aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:29:14.903558 7f68e992aa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:29:14.903558 7f68e992aa80 Options.arena_block_size: 16777216
+2021/03/13-23:29:14.903559 7f68e992aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:29:14.903559 7f68e992aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:29:14.903560 7f68e992aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:29:14.903561 7f68e992aa80 Options.disable_auto_compactions: 0
+2021/03/13-23:29:14.903562 7f68e992aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:29:14.903563 7f68e992aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:29:14.903564 7f68e992aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:29:14.903564 7f68e992aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:29:14.903565 7f68e992aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:29:14.903565 7f68e992aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:29:14.903566 7f68e992aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:29:14.903567 7f68e992aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:29:14.903568 7f68e992aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:29:14.903568 7f68e992aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:29:14.903569 7f68e992aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:29:14.903569 7f68e992aa80 Options.table_properties_collectors:
+2021/03/13-23:29:14.903570 7f68e992aa80 Options.inplace_update_support: 0
+2021/03/13-23:29:14.903570 7f68e992aa80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:29:14.903571 7f68e992aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:29:14.903572 7f68e992aa80 Options.memtable_huge_page_size: 0
+2021/03/13-23:29:14.903572 7f68e992aa80 Options.bloom_locality: 0
+2021/03/13-23:29:14.903573 7f68e992aa80 Options.max_successive_merges: 0
+2021/03/13-23:29:14.903574 7f68e992aa80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:29:14.903574 7f68e992aa80 Options.paranoid_file_checks: 0
+2021/03/13-23:29:14.903575 7f68e992aa80 Options.force_consistency_checks: 0
+2021/03/13-23:29:14.903575 7f68e992aa80 Options.report_bg_io_stats: 0
+2021/03/13-23:29:14.903975 7f68e992aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:29:14.903978 7f68e992aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:29:14.904058 7f68e992aa80 EVENT_LOG_v1 {"time_micros": 1615674554904047, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:29:14.904063 7f68e992aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:29:15.609419 7f68e992aa80 EVENT_LOG_v1 {"time_micros": 1615674555609415, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674775992889 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674775992889
new file mode 100644
index 0000000..10e1409
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674775992889
@@ -0,0 +1,186 @@
+2021/03/13-23:29:15.622268 7f68e992aa80 RocksDB version: 5.11.3
+2021/03/13-23:29:15.622326 7f68e992aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:29:15.622328 7f68e992aa80 Compile date Mar 13 2021
+2021/03/13-23:29:15.622332 7f68e992aa80 DB SUMMARY
+2021/03/13-23:29:15.622390 7f68e992aa80 CURRENT file: CURRENT
+2021/03/13-23:29:15.622391 7f68e992aa80 IDENTITY file: IDENTITY
+2021/03/13-23:29:15.622397 7f68e992aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:29:15.622398 7f68e992aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:29:15.622399 7f68e992aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:29:15.622402 7f68e992aa80 Options.error_if_exists: 0
+2021/03/13-23:29:15.622403 7f68e992aa80 Options.create_if_missing: 1
+2021/03/13-23:29:15.622403 7f68e992aa80 Options.paranoid_checks: 1
+2021/03/13-23:29:15.622404 7f68e992aa80 Options.env: 0x7f68ea2e4080
+2021/03/13-23:29:15.622405 7f68e992aa80 Options.info_log: 0x1fd2ca0
+2021/03/13-23:29:15.622405 7f68e992aa80 Options.max_file_opening_threads: 16
+2021/03/13-23:29:15.622406 7f68e992aa80 Options.statistics: (nil)
+2021/03/13-23:29:15.622407 7f68e992aa80 Options.use_fsync: 0
+2021/03/13-23:29:15.622407 7f68e992aa80 Options.max_log_file_size: 0
+2021/03/13-23:29:15.622408 7f68e992aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:29:15.622408 7f68e992aa80 Options.log_file_time_to_roll: 0
+2021/03/13-23:29:15.622409 7f68e992aa80 Options.keep_log_file_num: 1000
+2021/03/13-23:29:15.622409 7f68e992aa80 Options.recycle_log_file_num: 0
+2021/03/13-23:29:15.622410 7f68e992aa80 Options.allow_fallocate: 1
+2021/03/13-23:29:15.622411 7f68e992aa80 Options.allow_mmap_reads: 0
+2021/03/13-23:29:15.622411 7f68e992aa80 Options.allow_mmap_writes: 0
+2021/03/13-23:29:15.622412 7f68e992aa80 Options.use_direct_reads: 0
+2021/03/13-23:29:15.622412 7f68e992aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:29:15.622413 7f68e992aa80 Options.create_missing_column_families: 0
+2021/03/13-23:29:15.622413 7f68e992aa80 Options.db_log_dir:
+2021/03/13-23:29:15.622414 7f68e992aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:29:15.622414 7f68e992aa80 Options.table_cache_numshardbits: 6
+2021/03/13-23:29:15.622415 7f68e992aa80 Options.max_subcompactions: 1
+2021/03/13-23:29:15.622416 7f68e992aa80 Options.max_background_flushes: -1
+2021/03/13-23:29:15.622416 7f68e992aa80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:29:15.622417 7f68e992aa80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:29:15.622417 7f68e992aa80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:29:15.622418 7f68e992aa80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:29:15.622418 7f68e992aa80 Options.advise_random_on_open: 1
+2021/03/13-23:29:15.622419 7f68e992aa80 Options.db_write_buffer_size: 0
+2021/03/13-23:29:15.622420 7f68e992aa80 Options.write_buffer_manager: 0x1fbab90
+2021/03/13-23:29:15.622420 7f68e992aa80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:29:15.622421 7f68e992aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:29:15.622421 7f68e992aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:29:15.622422 7f68e992aa80 Options.use_adaptive_mutex: 0
+2021/03/13-23:29:15.622422 7f68e992aa80 Options.rate_limiter: (nil)
+2021/03/13-23:29:15.622424 7f68e992aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:29:15.622431 7f68e992aa80 Options.wal_recovery_mode: 2
+2021/03/13-23:29:15.622431 7f68e992aa80 Options.enable_thread_tracking: 0
+2021/03/13-23:29:15.622432 7f68e992aa80 Options.enable_pipelined_write: 0
+2021/03/13-23:29:15.622432 7f68e992aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:29:15.622433 7f68e992aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:29:15.622434 7f68e992aa80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:29:15.622434 7f68e992aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:29:15.622435 7f68e992aa80 Options.row_cache: None
+2021/03/13-23:29:15.622435 7f68e992aa80 Options.wal_filter: None
+2021/03/13-23:29:15.622436 7f68e992aa80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:29:15.622436 7f68e992aa80 Options.allow_ingest_behind: 0
+2021/03/13-23:29:15.622437 7f68e992aa80 Options.preserve_deletes: 0
+2021/03/13-23:29:15.622437 7f68e992aa80 Options.two_write_queues: 0
+2021/03/13-23:29:15.622438 7f68e992aa80 Options.manual_wal_flush: 0
+2021/03/13-23:29:15.622439 7f68e992aa80 Options.max_background_jobs: 16
+2021/03/13-23:29:15.622440 7f68e992aa80 Options.max_background_compactions: -1
+2021/03/13-23:29:15.622440 7f68e992aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:29:15.622441 7f68e992aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:29:15.622441 7f68e992aa80 Options.delayed_write_rate : 16777216
+2021/03/13-23:29:15.622442 7f68e992aa80 Options.max_total_wal_size: 0
+2021/03/13-23:29:15.622442 7f68e992aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:29:15.622443 7f68e992aa80 Options.stats_dump_period_sec: 600
+2021/03/13-23:29:15.622444 7f68e992aa80 Options.max_open_files: -1
+2021/03/13-23:29:15.622444 7f68e992aa80 Options.bytes_per_sync: 0
+2021/03/13-23:29:15.622445 7f68e992aa80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:29:15.622445 7f68e992aa80 Options.compaction_readahead_size: 0
+2021/03/13-23:29:15.622446 7f68e992aa80 Compression algorithms supported:
+2021/03/13-23:29:15.622446 7f68e992aa80 Snappy supported: 1
+2021/03/13-23:29:15.622447 7f68e992aa80 Zlib supported: 1
+2021/03/13-23:29:15.622447 7f68e992aa80 Bzip supported: 1
+2021/03/13-23:29:15.622448 7f68e992aa80 LZ4 supported: 1
+2021/03/13-23:29:15.622449 7f68e992aa80 ZSTDNotFinal supported: 1
+2021/03/13-23:29:15.622452 7f68e992aa80 ZSTD supported: 1
+2021/03/13-23:29:15.622455 7f68e992aa80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:29:15.622457 7f68e992aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:29:15.622544 7f68e992aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:29:15.622597 7f68e992aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:29:15.622599 7f68e992aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:29:15.622600 7f68e992aa80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:29:15.622600 7f68e992aa80 Options.compaction_filter: None
+2021/03/13-23:29:15.622601 7f68e992aa80 Options.compaction_filter_factory: None
+2021/03/13-23:29:15.622601 7f68e992aa80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:29:15.622602 7f68e992aa80 Options.table_factory: BlockBasedTable
+2021/03/13-23:29:15.622615 7f68e992aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fca520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fafc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:29:15.622616 7f68e992aa80 Options.write_buffer_size: 134217728
+2021/03/13-23:29:15.622617 7f68e992aa80 Options.max_write_buffer_number: 6
+2021/03/13-23:29:15.622618 7f68e992aa80 Options.compression[0]: NoCompression
+2021/03/13-23:29:15.622618 7f68e992aa80 Options.compression[1]: NoCompression
+2021/03/13-23:29:15.622619 7f68e992aa80 Options.compression[2]: Snappy
+2021/03/13-23:29:15.622620 7f68e992aa80 Options.compression[3]: Snappy
+2021/03/13-23:29:15.622620 7f68e992aa80 Options.compression[4]: Snappy
+2021/03/13-23:29:15.622621 7f68e992aa80 Options.compression[5]: Snappy
+2021/03/13-23:29:15.622621 7f68e992aa80 Options.compression[6]: Snappy
+2021/03/13-23:29:15.622622 7f68e992aa80 Options.bottommost_compression: Disabled
+2021/03/13-23:29:15.622623 7f68e992aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:29:15.622623 7f68e992aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:29:15.622624 7f68e992aa80 Options.num_levels: 7
+2021/03/13-23:29:15.622624 7f68e992aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:29:15.622625 7f68e992aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:29:15.622625 7f68e992aa80 Options.compression_opts.window_bits: -14
+2021/03/13-23:29:15.622626 7f68e992aa80 Options.compression_opts.level: -1
+2021/03/13-23:29:15.622627 7f68e992aa80 Options.compression_opts.strategy: 0
+2021/03/13-23:29:15.622627 7f68e992aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:29:15.622628 7f68e992aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:29:15.622628 7f68e992aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:29:15.622629 7f68e992aa80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:29:15.622629 7f68e992aa80 Options.target_file_size_base: 67108864
+2021/03/13-23:29:15.622630 7f68e992aa80 Options.target_file_size_multiplier: 1
+2021/03/13-23:29:15.622631 7f68e992aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:29:15.622631 7f68e992aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:29:15.622632 7f68e992aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:29:15.622633 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:29:15.622641 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:29:15.622641 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:29:15.622642 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:29:15.622642 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:29:15.622643 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:29:15.622643 7f68e992aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:29:15.622644 7f68e992aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:29:15.622645 7f68e992aa80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:29:15.622645 7f68e992aa80 Options.arena_block_size: 16777216
+2021/03/13-23:29:15.622646 7f68e992aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:29:15.622646 7f68e992aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:29:15.622647 7f68e992aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:29:15.622647 7f68e992aa80 Options.disable_auto_compactions: 0
+2021/03/13-23:29:15.622649 7f68e992aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:29:15.622650 7f68e992aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:29:15.622650 7f68e992aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:29:15.622651 7f68e992aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:29:15.622652 7f68e992aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:29:15.622652 7f68e992aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:29:15.622653 7f68e992aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:29:15.622654 7f68e992aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:29:15.622654 7f68e992aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:29:15.622655 7f68e992aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:29:15.622655 7f68e992aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:29:15.622656 7f68e992aa80 Options.table_properties_collectors:
+2021/03/13-23:29:15.622657 7f68e992aa80 Options.inplace_update_support: 0
+2021/03/13-23:29:15.622657 7f68e992aa80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:29:15.622658 7f68e992aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:29:15.622658 7f68e992aa80 Options.memtable_huge_page_size: 0
+2021/03/13-23:29:15.622659 7f68e992aa80 Options.bloom_locality: 0
+2021/03/13-23:29:15.622660 7f68e992aa80 Options.max_successive_merges: 0
+2021/03/13-23:29:15.622660 7f68e992aa80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:29:15.622661 7f68e992aa80 Options.paranoid_file_checks: 0
+2021/03/13-23:29:15.622661 7f68e992aa80 Options.force_consistency_checks: 0
+2021/03/13-23:29:15.622662 7f68e992aa80 Options.report_bg_io_stats: 0
+2021/03/13-23:29:15.623043 7f68e992aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:29:15.623046 7f68e992aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:29:15.623124 7f68e992aa80 EVENT_LOG_v1 {"time_micros": 1615674555623114, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:29:15.623130 7f68e992aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:29:16.321682 7f68e992aa80 EVENT_LOG_v1 {"time_micros": 1615674556321678, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674776707843 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674776707843
new file mode 100644
index 0000000..c06623a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674776707843
@@ -0,0 +1,186 @@
+2021/03/13-23:32:55.993258 7fc130081a80 RocksDB version: 5.11.3
+2021/03/13-23:32:55.993328 7fc130081a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:32:55.993329 7fc130081a80 Compile date Mar 13 2021
+2021/03/13-23:32:55.993332 7fc130081a80 DB SUMMARY
+2021/03/13-23:32:55.993398 7fc130081a80 CURRENT file: CURRENT
+2021/03/13-23:32:55.993399 7fc130081a80 IDENTITY file: IDENTITY
+2021/03/13-23:32:55.993405 7fc130081a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:32:55.993407 7fc130081a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:32:55.993408 7fc130081a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:32:55.993411 7fc130081a80 Options.error_if_exists: 0
+2021/03/13-23:32:55.993412 7fc130081a80 Options.create_if_missing: 1
+2021/03/13-23:32:55.993413 7fc130081a80 Options.paranoid_checks: 1
+2021/03/13-23:32:55.993414 7fc130081a80 Options.env: 0x7fc130a3b080
+2021/03/13-23:32:55.993414 7fc130081a80 Options.info_log: 0x12b4ca0
+2021/03/13-23:32:55.993415 7fc130081a80 Options.max_file_opening_threads: 16
+2021/03/13-23:32:55.993416 7fc130081a80 Options.statistics: (nil)
+2021/03/13-23:32:55.993416 7fc130081a80 Options.use_fsync: 0
+2021/03/13-23:32:55.993417 7fc130081a80 Options.max_log_file_size: 0
+2021/03/13-23:32:55.993418 7fc130081a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:32:55.993418 7fc130081a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:32:55.993419 7fc130081a80 Options.keep_log_file_num: 1000
+2021/03/13-23:32:55.993420 7fc130081a80 Options.recycle_log_file_num: 0
+2021/03/13-23:32:55.993420 7fc130081a80 Options.allow_fallocate: 1
+2021/03/13-23:32:55.993421 7fc130081a80 Options.allow_mmap_reads: 0
+2021/03/13-23:32:55.993421 7fc130081a80 Options.allow_mmap_writes: 0
+2021/03/13-23:32:55.993422 7fc130081a80 Options.use_direct_reads: 0
+2021/03/13-23:32:55.993423 7fc130081a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:32:55.993423 7fc130081a80 Options.create_missing_column_families: 0
+2021/03/13-23:32:55.993424 7fc130081a80 Options.db_log_dir:
+2021/03/13-23:32:55.993424 7fc130081a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:32:55.993425 7fc130081a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:32:55.993426 7fc130081a80 Options.max_subcompactions: 1
+2021/03/13-23:32:55.993426 7fc130081a80 Options.max_background_flushes: -1
+2021/03/13-23:32:55.993427 7fc130081a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:32:55.993428 7fc130081a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:32:55.993428 7fc130081a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:32:55.993429 7fc130081a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:32:55.993430 7fc130081a80 Options.advise_random_on_open: 1
+2021/03/13-23:32:55.993430 7fc130081a80 Options.db_write_buffer_size: 0
+2021/03/13-23:32:55.993431 7fc130081a80 Options.write_buffer_manager: 0x129cb90
+2021/03/13-23:32:55.993431 7fc130081a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:32:55.993432 7fc130081a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:32:55.993433 7fc130081a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:32:55.993433 7fc130081a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:32:55.993434 7fc130081a80 Options.rate_limiter: (nil)
+2021/03/13-23:32:55.993435 7fc130081a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:32:55.993443 7fc130081a80 Options.wal_recovery_mode: 2
+2021/03/13-23:32:55.993444 7fc130081a80 Options.enable_thread_tracking: 0
+2021/03/13-23:32:55.993445 7fc130081a80 Options.enable_pipelined_write: 0
+2021/03/13-23:32:55.993446 7fc130081a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:32:55.993446 7fc130081a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:32:55.993447 7fc130081a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:32:55.993447 7fc130081a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:32:55.993448 7fc130081a80 Options.row_cache: None
+2021/03/13-23:32:55.993449 7fc130081a80 Options.wal_filter: None
+2021/03/13-23:32:55.993450 7fc130081a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:32:55.993450 7fc130081a80 Options.allow_ingest_behind: 0
+2021/03/13-23:32:55.993451 7fc130081a80 Options.preserve_deletes: 0
+2021/03/13-23:32:55.993451 7fc130081a80 Options.two_write_queues: 0
+2021/03/13-23:32:55.993452 7fc130081a80 Options.manual_wal_flush: 0
+2021/03/13-23:32:55.993453 7fc130081a80 Options.max_background_jobs: 16
+2021/03/13-23:32:55.993454 7fc130081a80 Options.max_background_compactions: -1
+2021/03/13-23:32:55.993454 7fc130081a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:32:55.993455 7fc130081a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:32:55.993456 7fc130081a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:32:55.993456 7fc130081a80 Options.max_total_wal_size: 0
+2021/03/13-23:32:55.993457 7fc130081a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:32:55.993458 7fc130081a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:32:55.993458 7fc130081a80 Options.max_open_files: -1
+2021/03/13-23:32:55.993459 7fc130081a80 Options.bytes_per_sync: 0
+2021/03/13-23:32:55.993459 7fc130081a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:32:55.993460 7fc130081a80 Options.compaction_readahead_size: 0
+2021/03/13-23:32:55.993461 7fc130081a80 Compression algorithms supported:
+2021/03/13-23:32:55.993461 7fc130081a80 Snappy supported: 1
+2021/03/13-23:32:55.993462 7fc130081a80 Zlib supported: 1
+2021/03/13-23:32:55.993463 7fc130081a80 Bzip supported: 1
+2021/03/13-23:32:55.993463 7fc130081a80 LZ4 supported: 1
+2021/03/13-23:32:55.993464 7fc130081a80 ZSTDNotFinal supported: 1
+2021/03/13-23:32:55.993469 7fc130081a80 ZSTD supported: 1
+2021/03/13-23:32:55.993472 7fc130081a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:32:55.993474 7fc130081a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:32:55.993576 7fc130081a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:32:55.993636 7fc130081a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:32:55.993638 7fc130081a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:32:55.993639 7fc130081a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:32:55.993639 7fc130081a80 Options.compaction_filter: None
+2021/03/13-23:32:55.993640 7fc130081a80 Options.compaction_filter_factory: None
+2021/03/13-23:32:55.993641 7fc130081a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:32:55.993642 7fc130081a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:32:55.993656 7fc130081a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x12ac520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1291c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:32:55.993657 7fc130081a80 Options.write_buffer_size: 134217728
+2021/03/13-23:32:55.993658 7fc130081a80 Options.max_write_buffer_number: 6
+2021/03/13-23:32:55.993659 7fc130081a80 Options.compression[0]: NoCompression
+2021/03/13-23:32:55.993659 7fc130081a80 Options.compression[1]: NoCompression
+2021/03/13-23:32:55.993660 7fc130081a80 Options.compression[2]: Snappy
+2021/03/13-23:32:55.993661 7fc130081a80 Options.compression[3]: Snappy
+2021/03/13-23:32:55.993661 7fc130081a80 Options.compression[4]: Snappy
+2021/03/13-23:32:55.993662 7fc130081a80 Options.compression[5]: Snappy
+2021/03/13-23:32:55.993663 7fc130081a80 Options.compression[6]: Snappy
+2021/03/13-23:32:55.993663 7fc130081a80 Options.bottommost_compression: Disabled
+2021/03/13-23:32:55.993664 7fc130081a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:32:55.993665 7fc130081a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:32:55.993666 7fc130081a80 Options.num_levels: 7
+2021/03/13-23:32:55.993666 7fc130081a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:32:55.993667 7fc130081a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:32:55.993667 7fc130081a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:32:55.993668 7fc130081a80 Options.compression_opts.level: -1
+2021/03/13-23:32:55.993669 7fc130081a80 Options.compression_opts.strategy: 0
+2021/03/13-23:32:55.993669 7fc130081a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:32:55.993670 7fc130081a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:32:55.993671 7fc130081a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:32:55.993671 7fc130081a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:32:55.993672 7fc130081a80 Options.target_file_size_base: 67108864
+2021/03/13-23:32:55.993673 7fc130081a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:32:55.993673 7fc130081a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:32:55.993674 7fc130081a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:32:55.993674 7fc130081a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:32:55.993676 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:32:55.993685 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:32:55.993686 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:32:55.993687 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:32:55.993687 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:32:55.993688 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:32:55.993689 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:32:55.993689 7fc130081a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:32:55.993690 7fc130081a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:32:55.993690 7fc130081a80 Options.arena_block_size: 16777216
+2021/03/13-23:32:55.993691 7fc130081a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:32:55.993692 7fc130081a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:32:55.993692 7fc130081a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:32:55.993693 7fc130081a80 Options.disable_auto_compactions: 0
+2021/03/13-23:32:55.993695 7fc130081a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:32:55.993695 7fc130081a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:32:55.993696 7fc130081a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:32:55.993697 7fc130081a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:32:55.993697 7fc130081a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:32:55.993698 7fc130081a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:32:55.993699 7fc130081a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:32:55.993699 7fc130081a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:32:55.993700 7fc130081a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:32:55.993701 7fc130081a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:32:55.993701 7fc130081a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:32:55.993702 7fc130081a80 Options.table_properties_collectors:
+2021/03/13-23:32:55.993703 7fc130081a80 Options.inplace_update_support: 0
+2021/03/13-23:32:55.993703 7fc130081a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:32:55.993704 7fc130081a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:32:55.993705 7fc130081a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:32:55.993705 7fc130081a80 Options.bloom_locality: 0
+2021/03/13-23:32:55.993706 7fc130081a80 Options.max_successive_merges: 0
+2021/03/13-23:32:55.993707 7fc130081a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:32:55.993707 7fc130081a80 Options.paranoid_file_checks: 0
+2021/03/13-23:32:55.993708 7fc130081a80 Options.force_consistency_checks: 0
+2021/03/13-23:32:55.993708 7fc130081a80 Options.report_bg_io_stats: 0
+2021/03/13-23:32:55.994159 7fc130081a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:32:55.994162 7fc130081a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:32:55.994277 7fc130081a80 EVENT_LOG_v1 {"time_micros": 1615674775994260, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:32:55.994285 7fc130081a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:32:56.695094 7fc130081a80 EVENT_LOG_v1 {"time_micros": 1615674776695091, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674777420929 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674777420929
new file mode 100644
index 0000000..5b2cf7b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674777420929
@@ -0,0 +1,186 @@
+2021/03/13-23:32:56.708165 7fc130081a80 RocksDB version: 5.11.3
+2021/03/13-23:32:56.708221 7fc130081a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:32:56.708222 7fc130081a80 Compile date Mar 13 2021
+2021/03/13-23:32:56.708224 7fc130081a80 DB SUMMARY
+2021/03/13-23:32:56.708291 7fc130081a80 CURRENT file: CURRENT
+2021/03/13-23:32:56.708292 7fc130081a80 IDENTITY file: IDENTITY
+2021/03/13-23:32:56.708298 7fc130081a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:32:56.708299 7fc130081a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:32:56.708300 7fc130081a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:32:56.708304 7fc130081a80 Options.error_if_exists: 0
+2021/03/13-23:32:56.708304 7fc130081a80 Options.create_if_missing: 1
+2021/03/13-23:32:56.708305 7fc130081a80 Options.paranoid_checks: 1
+2021/03/13-23:32:56.708306 7fc130081a80 Options.env: 0x7fc130a3b080
+2021/03/13-23:32:56.708306 7fc130081a80 Options.info_log: 0x12b4ca0
+2021/03/13-23:32:56.708307 7fc130081a80 Options.max_file_opening_threads: 16
+2021/03/13-23:32:56.708307 7fc130081a80 Options.statistics: (nil)
+2021/03/13-23:32:56.708308 7fc130081a80 Options.use_fsync: 0
+2021/03/13-23:32:56.708309 7fc130081a80 Options.max_log_file_size: 0
+2021/03/13-23:32:56.708309 7fc130081a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:32:56.708310 7fc130081a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:32:56.708310 7fc130081a80 Options.keep_log_file_num: 1000
+2021/03/13-23:32:56.708311 7fc130081a80 Options.recycle_log_file_num: 0
+2021/03/13-23:32:56.708312 7fc130081a80 Options.allow_fallocate: 1
+2021/03/13-23:32:56.708312 7fc130081a80 Options.allow_mmap_reads: 0
+2021/03/13-23:32:56.708313 7fc130081a80 Options.allow_mmap_writes: 0
+2021/03/13-23:32:56.708313 7fc130081a80 Options.use_direct_reads: 0
+2021/03/13-23:32:56.708314 7fc130081a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:32:56.708314 7fc130081a80 Options.create_missing_column_families: 0
+2021/03/13-23:32:56.708315 7fc130081a80 Options.db_log_dir:
+2021/03/13-23:32:56.708315 7fc130081a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:32:56.708316 7fc130081a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:32:56.708317 7fc130081a80 Options.max_subcompactions: 1
+2021/03/13-23:32:56.708317 7fc130081a80 Options.max_background_flushes: -1
+2021/03/13-23:32:56.708318 7fc130081a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:32:56.708318 7fc130081a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:32:56.708319 7fc130081a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:32:56.708319 7fc130081a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:32:56.708320 7fc130081a80 Options.advise_random_on_open: 1
+2021/03/13-23:32:56.708321 7fc130081a80 Options.db_write_buffer_size: 0
+2021/03/13-23:32:56.708321 7fc130081a80 Options.write_buffer_manager: 0x129cb90
+2021/03/13-23:32:56.708322 7fc130081a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:32:56.708322 7fc130081a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:32:56.708323 7fc130081a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:32:56.708323 7fc130081a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:32:56.708324 7fc130081a80 Options.rate_limiter: (nil)
+2021/03/13-23:32:56.708325 7fc130081a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:32:56.708333 7fc130081a80 Options.wal_recovery_mode: 2
+2021/03/13-23:32:56.708334 7fc130081a80 Options.enable_thread_tracking: 0
+2021/03/13-23:32:56.708335 7fc130081a80 Options.enable_pipelined_write: 0
+2021/03/13-23:32:56.708335 7fc130081a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:32:56.708336 7fc130081a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:32:56.708336 7fc130081a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:32:56.708337 7fc130081a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:32:56.708338 7fc130081a80 Options.row_cache: None
+2021/03/13-23:32:56.708338 7fc130081a80 Options.wal_filter: None
+2021/03/13-23:32:56.708339 7fc130081a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:32:56.708339 7fc130081a80 Options.allow_ingest_behind: 0
+2021/03/13-23:32:56.708340 7fc130081a80 Options.preserve_deletes: 0
+2021/03/13-23:32:56.708340 7fc130081a80 Options.two_write_queues: 0
+2021/03/13-23:32:56.708341 7fc130081a80 Options.manual_wal_flush: 0
+2021/03/13-23:32:56.708342 7fc130081a80 Options.max_background_jobs: 16
+2021/03/13-23:32:56.708343 7fc130081a80 Options.max_background_compactions: -1
+2021/03/13-23:32:56.708343 7fc130081a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:32:56.708344 7fc130081a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:32:56.708344 7fc130081a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:32:56.708345 7fc130081a80 Options.max_total_wal_size: 0
+2021/03/13-23:32:56.708345 7fc130081a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:32:56.708346 7fc130081a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:32:56.708347 7fc130081a80 Options.max_open_files: -1
+2021/03/13-23:32:56.708347 7fc130081a80 Options.bytes_per_sync: 0
+2021/03/13-23:32:56.708348 7fc130081a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:32:56.708348 7fc130081a80 Options.compaction_readahead_size: 0
+2021/03/13-23:32:56.708349 7fc130081a80 Compression algorithms supported:
+2021/03/13-23:32:56.708349 7fc130081a80 Snappy supported: 1
+2021/03/13-23:32:56.708350 7fc130081a80 Zlib supported: 1
+2021/03/13-23:32:56.708351 7fc130081a80 Bzip supported: 1
+2021/03/13-23:32:56.708351 7fc130081a80 LZ4 supported: 1
+2021/03/13-23:32:56.708352 7fc130081a80 ZSTDNotFinal supported: 1
+2021/03/13-23:32:56.708356 7fc130081a80 ZSTD supported: 1
+2021/03/13-23:32:56.708359 7fc130081a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:32:56.708360 7fc130081a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:32:56.708448 7fc130081a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:32:56.708501 7fc130081a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:32:56.708503 7fc130081a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:32:56.708504 7fc130081a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:32:56.708504 7fc130081a80 Options.compaction_filter: None
+2021/03/13-23:32:56.708505 7fc130081a80 Options.compaction_filter_factory: None
+2021/03/13-23:32:56.708505 7fc130081a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:32:56.708506 7fc130081a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:32:56.708520 7fc130081a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x12ac520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1291c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:32:56.708521 7fc130081a80 Options.write_buffer_size: 134217728
+2021/03/13-23:32:56.708521 7fc130081a80 Options.max_write_buffer_number: 6
+2021/03/13-23:32:56.708522 7fc130081a80 Options.compression[0]: NoCompression
+2021/03/13-23:32:56.708523 7fc130081a80 Options.compression[1]: NoCompression
+2021/03/13-23:32:56.708524 7fc130081a80 Options.compression[2]: Snappy
+2021/03/13-23:32:56.708524 7fc130081a80 Options.compression[3]: Snappy
+2021/03/13-23:32:56.708525 7fc130081a80 Options.compression[4]: Snappy
+2021/03/13-23:32:56.708525 7fc130081a80 Options.compression[5]: Snappy
+2021/03/13-23:32:56.708526 7fc130081a80 Options.compression[6]: Snappy
+2021/03/13-23:32:56.708526 7fc130081a80 Options.bottommost_compression: Disabled
+2021/03/13-23:32:56.708527 7fc130081a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:32:56.708528 7fc130081a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:32:56.708528 7fc130081a80 Options.num_levels: 7
+2021/03/13-23:32:56.708529 7fc130081a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:32:56.708530 7fc130081a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:32:56.708530 7fc130081a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:32:56.708531 7fc130081a80 Options.compression_opts.level: -1
+2021/03/13-23:32:56.708531 7fc130081a80 Options.compression_opts.strategy: 0
+2021/03/13-23:32:56.708532 7fc130081a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:32:56.708532 7fc130081a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:32:56.708533 7fc130081a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:32:56.708534 7fc130081a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:32:56.708534 7fc130081a80 Options.target_file_size_base: 67108864
+2021/03/13-23:32:56.708535 7fc130081a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:32:56.708535 7fc130081a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:32:56.708536 7fc130081a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:32:56.708536 7fc130081a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:32:56.708538 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:32:56.708545 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:32:56.708546 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:32:56.708547 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:32:56.708547 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:32:56.708548 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:32:56.708548 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:32:56.708549 7fc130081a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:32:56.708549 7fc130081a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:32:56.708550 7fc130081a80 Options.arena_block_size: 16777216
+2021/03/13-23:32:56.708551 7fc130081a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:32:56.708551 7fc130081a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:32:56.708552 7fc130081a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:32:56.708552 7fc130081a80 Options.disable_auto_compactions: 0
+2021/03/13-23:32:56.708554 7fc130081a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:32:56.708555 7fc130081a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:32:56.708555 7fc130081a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:32:56.708556 7fc130081a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:32:56.708556 7fc130081a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:32:56.708557 7fc130081a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:32:56.708558 7fc130081a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:32:56.708558 7fc130081a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:32:56.708559 7fc130081a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:32:56.708559 7fc130081a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:32:56.708560 7fc130081a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:32:56.708561 7fc130081a80 Options.table_properties_collectors:
+2021/03/13-23:32:56.708561 7fc130081a80 Options.inplace_update_support: 0
+2021/03/13-23:32:56.708562 7fc130081a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:32:56.708562 7fc130081a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:32:56.708563 7fc130081a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:32:56.708564 7fc130081a80 Options.bloom_locality: 0
+2021/03/13-23:32:56.708564 7fc130081a80 Options.max_successive_merges: 0
+2021/03/13-23:32:56.708565 7fc130081a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:32:56.708565 7fc130081a80 Options.paranoid_file_checks: 0
+2021/03/13-23:32:56.708566 7fc130081a80 Options.force_consistency_checks: 0
+2021/03/13-23:32:56.708566 7fc130081a80 Options.report_bg_io_stats: 0
+2021/03/13-23:32:56.708942 7fc130081a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:32:56.708944 7fc130081a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:32:56.709021 7fc130081a80 EVENT_LOG_v1 {"time_micros": 1615674776709009, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:32:56.709026 7fc130081a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:32:57.407656 7fc130081a80 EVENT_LOG_v1 {"time_micros": 1615674777407653, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674778122017 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674778122017
new file mode 100644
index 0000000..ed9d1a5
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674778122017
@@ -0,0 +1,186 @@
+2021/03/13-23:32:57.421270 7fc130081a80 RocksDB version: 5.11.3
+2021/03/13-23:32:57.421328 7fc130081a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:32:57.421330 7fc130081a80 Compile date Mar 13 2021
+2021/03/13-23:32:57.421332 7fc130081a80 DB SUMMARY
+2021/03/13-23:32:57.421392 7fc130081a80 CURRENT file: CURRENT
+2021/03/13-23:32:57.421393 7fc130081a80 IDENTITY file: IDENTITY
+2021/03/13-23:32:57.421399 7fc130081a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:32:57.421400 7fc130081a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:32:57.421401 7fc130081a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:32:57.421404 7fc130081a80 Options.error_if_exists: 0
+2021/03/13-23:32:57.421405 7fc130081a80 Options.create_if_missing: 1
+2021/03/13-23:32:57.421406 7fc130081a80 Options.paranoid_checks: 1
+2021/03/13-23:32:57.421406 7fc130081a80 Options.env: 0x7fc130a3b080
+2021/03/13-23:32:57.421407 7fc130081a80 Options.info_log: 0x12b4ca0
+2021/03/13-23:32:57.421407 7fc130081a80 Options.max_file_opening_threads: 16
+2021/03/13-23:32:57.421408 7fc130081a80 Options.statistics: (nil)
+2021/03/13-23:32:57.421409 7fc130081a80 Options.use_fsync: 0
+2021/03/13-23:32:57.421409 7fc130081a80 Options.max_log_file_size: 0
+2021/03/13-23:32:57.421410 7fc130081a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:32:57.421410 7fc130081a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:32:57.421411 7fc130081a80 Options.keep_log_file_num: 1000
+2021/03/13-23:32:57.421412 7fc130081a80 Options.recycle_log_file_num: 0
+2021/03/13-23:32:57.421412 7fc130081a80 Options.allow_fallocate: 1
+2021/03/13-23:32:57.421413 7fc130081a80 Options.allow_mmap_reads: 0
+2021/03/13-23:32:57.421413 7fc130081a80 Options.allow_mmap_writes: 0
+2021/03/13-23:32:57.421414 7fc130081a80 Options.use_direct_reads: 0
+2021/03/13-23:32:57.421414 7fc130081a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:32:57.421415 7fc130081a80 Options.create_missing_column_families: 0
+2021/03/13-23:32:57.421415 7fc130081a80 Options.db_log_dir:
+2021/03/13-23:32:57.421416 7fc130081a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:32:57.421417 7fc130081a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:32:57.421417 7fc130081a80 Options.max_subcompactions: 1
+2021/03/13-23:32:57.421418 7fc130081a80 Options.max_background_flushes: -1
+2021/03/13-23:32:57.421418 7fc130081a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:32:57.421419 7fc130081a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:32:57.421419 7fc130081a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:32:57.421420 7fc130081a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:32:57.421421 7fc130081a80 Options.advise_random_on_open: 1
+2021/03/13-23:32:57.421421 7fc130081a80 Options.db_write_buffer_size: 0
+2021/03/13-23:32:57.421422 7fc130081a80 Options.write_buffer_manager: 0x129cb90
+2021/03/13-23:32:57.421422 7fc130081a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:32:57.421423 7fc130081a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:32:57.421423 7fc130081a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:32:57.421424 7fc130081a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:32:57.421425 7fc130081a80 Options.rate_limiter: (nil)
+2021/03/13-23:32:57.421426 7fc130081a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:32:57.421434 7fc130081a80 Options.wal_recovery_mode: 2
+2021/03/13-23:32:57.421434 7fc130081a80 Options.enable_thread_tracking: 0
+2021/03/13-23:32:57.421435 7fc130081a80 Options.enable_pipelined_write: 0
+2021/03/13-23:32:57.421436 7fc130081a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:32:57.421436 7fc130081a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:32:57.421437 7fc130081a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:32:57.421437 7fc130081a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:32:57.421438 7fc130081a80 Options.row_cache: None
+2021/03/13-23:32:57.421438 7fc130081a80 Options.wal_filter: None
+2021/03/13-23:32:57.421439 7fc130081a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:32:57.421440 7fc130081a80 Options.allow_ingest_behind: 0
+2021/03/13-23:32:57.421440 7fc130081a80 Options.preserve_deletes: 0
+2021/03/13-23:32:57.421441 7fc130081a80 Options.two_write_queues: 0
+2021/03/13-23:32:57.421441 7fc130081a80 Options.manual_wal_flush: 0
+2021/03/13-23:32:57.421442 7fc130081a80 Options.max_background_jobs: 16
+2021/03/13-23:32:57.421443 7fc130081a80 Options.max_background_compactions: -1
+2021/03/13-23:32:57.421444 7fc130081a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:32:57.421444 7fc130081a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:32:57.421445 7fc130081a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:32:57.421445 7fc130081a80 Options.max_total_wal_size: 0
+2021/03/13-23:32:57.421446 7fc130081a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:32:57.421446 7fc130081a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:32:57.421447 7fc130081a80 Options.max_open_files: -1
+2021/03/13-23:32:57.421448 7fc130081a80 Options.bytes_per_sync: 0
+2021/03/13-23:32:57.421448 7fc130081a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:32:57.421449 7fc130081a80 Options.compaction_readahead_size: 0
+2021/03/13-23:32:57.421449 7fc130081a80 Compression algorithms supported:
+2021/03/13-23:32:57.421450 7fc130081a80 Snappy supported: 1
+2021/03/13-23:32:57.421450 7fc130081a80 Zlib supported: 1
+2021/03/13-23:32:57.421451 7fc130081a80 Bzip supported: 1
+2021/03/13-23:32:57.421452 7fc130081a80 LZ4 supported: 1
+2021/03/13-23:32:57.421452 7fc130081a80 ZSTDNotFinal supported: 1
+2021/03/13-23:32:57.421456 7fc130081a80 ZSTD supported: 1
+2021/03/13-23:32:57.421459 7fc130081a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:32:57.421460 7fc130081a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:32:57.421548 7fc130081a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:32:57.421602 7fc130081a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:32:57.421604 7fc130081a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:32:57.421605 7fc130081a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:32:57.421605 7fc130081a80 Options.compaction_filter: None
+2021/03/13-23:32:57.421606 7fc130081a80 Options.compaction_filter_factory: None
+2021/03/13-23:32:57.421606 7fc130081a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:32:57.421607 7fc130081a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:32:57.421621 7fc130081a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x12ac520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1291c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:32:57.421622 7fc130081a80 Options.write_buffer_size: 134217728
+2021/03/13-23:32:57.421622 7fc130081a80 Options.max_write_buffer_number: 6
+2021/03/13-23:32:57.421623 7fc130081a80 Options.compression[0]: NoCompression
+2021/03/13-23:32:57.421624 7fc130081a80 Options.compression[1]: NoCompression
+2021/03/13-23:32:57.421625 7fc130081a80 Options.compression[2]: Snappy
+2021/03/13-23:32:57.421625 7fc130081a80 Options.compression[3]: Snappy
+2021/03/13-23:32:57.421626 7fc130081a80 Options.compression[4]: Snappy
+2021/03/13-23:32:57.421626 7fc130081a80 Options.compression[5]: Snappy
+2021/03/13-23:32:57.421627 7fc130081a80 Options.compression[6]: Snappy
+2021/03/13-23:32:57.421627 7fc130081a80 Options.bottommost_compression: Disabled
+2021/03/13-23:32:57.421628 7fc130081a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:32:57.421629 7fc130081a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:32:57.421629 7fc130081a80 Options.num_levels: 7
+2021/03/13-23:32:57.421630 7fc130081a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:32:57.421631 7fc130081a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:32:57.421631 7fc130081a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:32:57.421632 7fc130081a80 Options.compression_opts.level: -1
+2021/03/13-23:32:57.421632 7fc130081a80 Options.compression_opts.strategy: 0
+2021/03/13-23:32:57.421633 7fc130081a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:32:57.421633 7fc130081a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:32:57.421634 7fc130081a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:32:57.421635 7fc130081a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:32:57.421635 7fc130081a80 Options.target_file_size_base: 67108864
+2021/03/13-23:32:57.421636 7fc130081a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:32:57.421636 7fc130081a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:32:57.421637 7fc130081a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:32:57.421638 7fc130081a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:32:57.421639 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:32:57.421646 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:32:57.421647 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:32:57.421648 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:32:57.421648 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:32:57.421649 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:32:57.421649 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:32:57.421650 7fc130081a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:32:57.421650 7fc130081a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:32:57.421651 7fc130081a80 Options.arena_block_size: 16777216
+2021/03/13-23:32:57.421652 7fc130081a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:32:57.421652 7fc130081a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:32:57.421653 7fc130081a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:32:57.421653 7fc130081a80 Options.disable_auto_compactions: 0
+2021/03/13-23:32:57.421655 7fc130081a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:32:57.421656 7fc130081a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:32:57.421656 7fc130081a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:32:57.421657 7fc130081a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:32:57.421657 7fc130081a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:32:57.421658 7fc130081a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:32:57.421659 7fc130081a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:32:57.421660 7fc130081a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:32:57.421660 7fc130081a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:32:57.421661 7fc130081a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:32:57.421661 7fc130081a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:32:57.421662 7fc130081a80 Options.table_properties_collectors:
+2021/03/13-23:32:57.421662 7fc130081a80 Options.inplace_update_support: 0
+2021/03/13-23:32:57.421663 7fc130081a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:32:57.421663 7fc130081a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:32:57.421664 7fc130081a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:32:57.421665 7fc130081a80 Options.bloom_locality: 0
+2021/03/13-23:32:57.421665 7fc130081a80 Options.max_successive_merges: 0
+2021/03/13-23:32:57.421666 7fc130081a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:32:57.421666 7fc130081a80 Options.paranoid_file_checks: 0
+2021/03/13-23:32:57.421667 7fc130081a80 Options.force_consistency_checks: 0
+2021/03/13-23:32:57.421668 7fc130081a80 Options.report_bg_io_stats: 0
+2021/03/13-23:32:57.422082 7fc130081a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:32:57.422085 7fc130081a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:32:57.422166 7fc130081a80 EVENT_LOG_v1 {"time_micros": 1615674777422154, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:32:57.422172 7fc130081a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:32:58.109273 7fc130081a80 EVENT_LOG_v1 {"time_micros": 1615674778109270, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674896391981 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674896391981
new file mode 100644
index 0000000..b7ae088
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674896391981
@@ -0,0 +1,186 @@
+2021/03/13-23:32:58.122348 7fc130081a80 RocksDB version: 5.11.3
+2021/03/13-23:32:58.122406 7fc130081a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:32:58.122407 7fc130081a80 Compile date Mar 13 2021
+2021/03/13-23:32:58.122410 7fc130081a80 DB SUMMARY
+2021/03/13-23:32:58.122468 7fc130081a80 CURRENT file: CURRENT
+2021/03/13-23:32:58.122469 7fc130081a80 IDENTITY file: IDENTITY
+2021/03/13-23:32:58.122475 7fc130081a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:32:58.122476 7fc130081a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:32:58.122477 7fc130081a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:32:58.122481 7fc130081a80 Options.error_if_exists: 0
+2021/03/13-23:32:58.122482 7fc130081a80 Options.create_if_missing: 1
+2021/03/13-23:32:58.122483 7fc130081a80 Options.paranoid_checks: 1
+2021/03/13-23:32:58.122483 7fc130081a80 Options.env: 0x7fc130a3b080
+2021/03/13-23:32:58.122484 7fc130081a80 Options.info_log: 0x12b4ca0
+2021/03/13-23:32:58.122485 7fc130081a80 Options.max_file_opening_threads: 16
+2021/03/13-23:32:58.122485 7fc130081a80 Options.statistics: (nil)
+2021/03/13-23:32:58.122486 7fc130081a80 Options.use_fsync: 0
+2021/03/13-23:32:58.122487 7fc130081a80 Options.max_log_file_size: 0
+2021/03/13-23:32:58.122488 7fc130081a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:32:58.122488 7fc130081a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:32:58.122489 7fc130081a80 Options.keep_log_file_num: 1000
+2021/03/13-23:32:58.122489 7fc130081a80 Options.recycle_log_file_num: 0
+2021/03/13-23:32:58.122490 7fc130081a80 Options.allow_fallocate: 1
+2021/03/13-23:32:58.122491 7fc130081a80 Options.allow_mmap_reads: 0
+2021/03/13-23:32:58.122491 7fc130081a80 Options.allow_mmap_writes: 0
+2021/03/13-23:32:58.122492 7fc130081a80 Options.use_direct_reads: 0
+2021/03/13-23:32:58.122492 7fc130081a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:32:58.122493 7fc130081a80 Options.create_missing_column_families: 0
+2021/03/13-23:32:58.122493 7fc130081a80 Options.db_log_dir:
+2021/03/13-23:32:58.122494 7fc130081a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:32:58.122494 7fc130081a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:32:58.122495 7fc130081a80 Options.max_subcompactions: 1
+2021/03/13-23:32:58.122496 7fc130081a80 Options.max_background_flushes: -1
+2021/03/13-23:32:58.122496 7fc130081a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:32:58.122497 7fc130081a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:32:58.122497 7fc130081a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:32:58.122498 7fc130081a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:32:58.122498 7fc130081a80 Options.advise_random_on_open: 1
+2021/03/13-23:32:58.122499 7fc130081a80 Options.db_write_buffer_size: 0
+2021/03/13-23:32:58.122500 7fc130081a80 Options.write_buffer_manager: 0x129cb90
+2021/03/13-23:32:58.122500 7fc130081a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:32:58.122501 7fc130081a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:32:58.122501 7fc130081a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:32:58.122502 7fc130081a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:32:58.122502 7fc130081a80 Options.rate_limiter: (nil)
+2021/03/13-23:32:58.122504 7fc130081a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:32:58.122511 7fc130081a80 Options.wal_recovery_mode: 2
+2021/03/13-23:32:58.122512 7fc130081a80 Options.enable_thread_tracking: 0
+2021/03/13-23:32:58.122512 7fc130081a80 Options.enable_pipelined_write: 0
+2021/03/13-23:32:58.122513 7fc130081a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:32:58.122513 7fc130081a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:32:58.122514 7fc130081a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:32:58.122514 7fc130081a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:32:58.122515 7fc130081a80 Options.row_cache: None
+2021/03/13-23:32:58.122516 7fc130081a80 Options.wal_filter: None
+2021/03/13-23:32:58.122516 7fc130081a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:32:58.122517 7fc130081a80 Options.allow_ingest_behind: 0
+2021/03/13-23:32:58.122517 7fc130081a80 Options.preserve_deletes: 0
+2021/03/13-23:32:58.122518 7fc130081a80 Options.two_write_queues: 0
+2021/03/13-23:32:58.122518 7fc130081a80 Options.manual_wal_flush: 0
+2021/03/13-23:32:58.122520 7fc130081a80 Options.max_background_jobs: 16
+2021/03/13-23:32:58.122520 7fc130081a80 Options.max_background_compactions: -1
+2021/03/13-23:32:58.122521 7fc130081a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:32:58.122521 7fc130081a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:32:58.122522 7fc130081a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:32:58.122522 7fc130081a80 Options.max_total_wal_size: 0
+2021/03/13-23:32:58.122523 7fc130081a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:32:58.122524 7fc130081a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:32:58.122524 7fc130081a80 Options.max_open_files: -1
+2021/03/13-23:32:58.122525 7fc130081a80 Options.bytes_per_sync: 0
+2021/03/13-23:32:58.122525 7fc130081a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:32:58.122526 7fc130081a80 Options.compaction_readahead_size: 0
+2021/03/13-23:32:58.122526 7fc130081a80 Compression algorithms supported:
+2021/03/13-23:32:58.122527 7fc130081a80 Snappy supported: 1
+2021/03/13-23:32:58.122527 7fc130081a80 Zlib supported: 1
+2021/03/13-23:32:58.122528 7fc130081a80 Bzip supported: 1
+2021/03/13-23:32:58.122528 7fc130081a80 LZ4 supported: 1
+2021/03/13-23:32:58.122529 7fc130081a80 ZSTDNotFinal supported: 1
+2021/03/13-23:32:58.122533 7fc130081a80 ZSTD supported: 1
+2021/03/13-23:32:58.122536 7fc130081a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:32:58.122537 7fc130081a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:32:58.122625 7fc130081a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:32:58.122679 7fc130081a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:32:58.122681 7fc130081a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:32:58.122681 7fc130081a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:32:58.122682 7fc130081a80 Options.compaction_filter: None
+2021/03/13-23:32:58.122683 7fc130081a80 Options.compaction_filter_factory: None
+2021/03/13-23:32:58.122683 7fc130081a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:32:58.122684 7fc130081a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:32:58.122697 7fc130081a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x12ac520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1291c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:32:58.122698 7fc130081a80 Options.write_buffer_size: 134217728
+2021/03/13-23:32:58.122699 7fc130081a80 Options.max_write_buffer_number: 6
+2021/03/13-23:32:58.122700 7fc130081a80 Options.compression[0]: NoCompression
+2021/03/13-23:32:58.122700 7fc130081a80 Options.compression[1]: NoCompression
+2021/03/13-23:32:58.122701 7fc130081a80 Options.compression[2]: Snappy
+2021/03/13-23:32:58.122702 7fc130081a80 Options.compression[3]: Snappy
+2021/03/13-23:32:58.122702 7fc130081a80 Options.compression[4]: Snappy
+2021/03/13-23:32:58.122703 7fc130081a80 Options.compression[5]: Snappy
+2021/03/13-23:32:58.122703 7fc130081a80 Options.compression[6]: Snappy
+2021/03/13-23:32:58.122704 7fc130081a80 Options.bottommost_compression: Disabled
+2021/03/13-23:32:58.122705 7fc130081a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:32:58.122705 7fc130081a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:32:58.122706 7fc130081a80 Options.num_levels: 7
+2021/03/13-23:32:58.122706 7fc130081a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:32:58.122707 7fc130081a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:32:58.122708 7fc130081a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:32:58.122708 7fc130081a80 Options.compression_opts.level: -1
+2021/03/13-23:32:58.122709 7fc130081a80 Options.compression_opts.strategy: 0
+2021/03/13-23:32:58.122709 7fc130081a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:32:58.122710 7fc130081a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:32:58.122710 7fc130081a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:32:58.122711 7fc130081a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:32:58.122712 7fc130081a80 Options.target_file_size_base: 67108864
+2021/03/13-23:32:58.122712 7fc130081a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:32:58.122713 7fc130081a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:32:58.122713 7fc130081a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:32:58.122714 7fc130081a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:32:58.122715 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:32:58.122723 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:32:58.122723 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:32:58.122724 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:32:58.122724 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:32:58.122725 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:32:58.122726 7fc130081a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:32:58.122726 7fc130081a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:32:58.122727 7fc130081a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:32:58.122727 7fc130081a80 Options.arena_block_size: 16777216
+2021/03/13-23:32:58.122728 7fc130081a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:32:58.122728 7fc130081a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:32:58.122729 7fc130081a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:32:58.122730 7fc130081a80 Options.disable_auto_compactions: 0
+2021/03/13-23:32:58.122731 7fc130081a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:32:58.122732 7fc130081a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:32:58.122732 7fc130081a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:32:58.122733 7fc130081a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:32:58.122734 7fc130081a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:32:58.122734 7fc130081a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:32:58.122735 7fc130081a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:32:58.122736 7fc130081a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:32:58.122736 7fc130081a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:32:58.122737 7fc130081a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:32:58.122737 7fc130081a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:32:58.122738 7fc130081a80 Options.table_properties_collectors:
+2021/03/13-23:32:58.122738 7fc130081a80 Options.inplace_update_support: 0
+2021/03/13-23:32:58.122739 7fc130081a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:32:58.122740 7fc130081a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:32:58.122740 7fc130081a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:32:58.122741 7fc130081a80 Options.bloom_locality: 0
+2021/03/13-23:32:58.122741 7fc130081a80 Options.max_successive_merges: 0
+2021/03/13-23:32:58.122742 7fc130081a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:32:58.122743 7fc130081a80 Options.paranoid_file_checks: 0
+2021/03/13-23:32:58.122743 7fc130081a80 Options.force_consistency_checks: 0
+2021/03/13-23:32:58.122744 7fc130081a80 Options.report_bg_io_stats: 0
+2021/03/13-23:32:58.123102 7fc130081a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:32:58.123104 7fc130081a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:32:58.123181 7fc130081a80 EVENT_LOG_v1 {"time_micros": 1615674778123169, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:32:58.123186 7fc130081a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:32:58.810082 7fc130081a80 EVENT_LOG_v1 {"time_micros": 1615674778810079, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674897110115 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674897110115
new file mode 100644
index 0000000..3851791
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674897110115
@@ -0,0 +1,186 @@
+2021/03/13-23:34:56.392347 7fca31f29a80 RocksDB version: 5.11.3
+2021/03/13-23:34:56.392414 7fca31f29a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:34:56.392416 7fca31f29a80 Compile date Mar 13 2021
+2021/03/13-23:34:56.392421 7fca31f29a80 DB SUMMARY
+2021/03/13-23:34:56.392489 7fca31f29a80 CURRENT file: CURRENT
+2021/03/13-23:34:56.392490 7fca31f29a80 IDENTITY file: IDENTITY
+2021/03/13-23:34:56.392497 7fca31f29a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:34:56.392498 7fca31f29a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:34:56.392499 7fca31f29a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:34:56.392503 7fca31f29a80 Options.error_if_exists: 0
+2021/03/13-23:34:56.392504 7fca31f29a80 Options.create_if_missing: 1
+2021/03/13-23:34:56.392505 7fca31f29a80 Options.paranoid_checks: 1
+2021/03/13-23:34:56.392505 7fca31f29a80 Options.env: 0x7fca328e3080
+2021/03/13-23:34:56.392506 7fca31f29a80 Options.info_log: 0x22ceca0
+2021/03/13-23:34:56.392507 7fca31f29a80 Options.max_file_opening_threads: 16
+2021/03/13-23:34:56.392507 7fca31f29a80 Options.statistics: (nil)
+2021/03/13-23:34:56.392508 7fca31f29a80 Options.use_fsync: 0
+2021/03/13-23:34:56.392509 7fca31f29a80 Options.max_log_file_size: 0
+2021/03/13-23:34:56.392510 7fca31f29a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:34:56.392510 7fca31f29a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:34:56.392511 7fca31f29a80 Options.keep_log_file_num: 1000
+2021/03/13-23:34:56.392512 7fca31f29a80 Options.recycle_log_file_num: 0
+2021/03/13-23:34:56.392512 7fca31f29a80 Options.allow_fallocate: 1
+2021/03/13-23:34:56.392513 7fca31f29a80 Options.allow_mmap_reads: 0
+2021/03/13-23:34:56.392514 7fca31f29a80 Options.allow_mmap_writes: 0
+2021/03/13-23:34:56.392514 7fca31f29a80 Options.use_direct_reads: 0
+2021/03/13-23:34:56.392515 7fca31f29a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:34:56.392515 7fca31f29a80 Options.create_missing_column_families: 0
+2021/03/13-23:34:56.392516 7fca31f29a80 Options.db_log_dir:
+2021/03/13-23:34:56.392517 7fca31f29a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:34:56.392517 7fca31f29a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:34:56.392518 7fca31f29a80 Options.max_subcompactions: 1
+2021/03/13-23:34:56.392518 7fca31f29a80 Options.max_background_flushes: -1
+2021/03/13-23:34:56.392519 7fca31f29a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:34:56.392520 7fca31f29a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:34:56.392520 7fca31f29a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:34:56.392521 7fca31f29a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:34:56.392522 7fca31f29a80 Options.advise_random_on_open: 1
+2021/03/13-23:34:56.392522 7fca31f29a80 Options.db_write_buffer_size: 0
+2021/03/13-23:34:56.392523 7fca31f29a80 Options.write_buffer_manager: 0x22b6b90
+2021/03/13-23:34:56.392524 7fca31f29a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:34:56.392524 7fca31f29a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:34:56.392525 7fca31f29a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:34:56.392525 7fca31f29a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:34:56.392526 7fca31f29a80 Options.rate_limiter: (nil)
+2021/03/13-23:34:56.392528 7fca31f29a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:34:56.392536 7fca31f29a80 Options.wal_recovery_mode: 2
+2021/03/13-23:34:56.392537 7fca31f29a80 Options.enable_thread_tracking: 0
+2021/03/13-23:34:56.392537 7fca31f29a80 Options.enable_pipelined_write: 0
+2021/03/13-23:34:56.392538 7fca31f29a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:34:56.392538 7fca31f29a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:34:56.392539 7fca31f29a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:34:56.392540 7fca31f29a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:34:56.392540 7fca31f29a80 Options.row_cache: None
+2021/03/13-23:34:56.392541 7fca31f29a80 Options.wal_filter: None
+2021/03/13-23:34:56.392542 7fca31f29a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:34:56.392542 7fca31f29a80 Options.allow_ingest_behind: 0
+2021/03/13-23:34:56.392543 7fca31f29a80 Options.preserve_deletes: 0
+2021/03/13-23:34:56.392543 7fca31f29a80 Options.two_write_queues: 0
+2021/03/13-23:34:56.392544 7fca31f29a80 Options.manual_wal_flush: 0
+2021/03/13-23:34:56.392545 7fca31f29a80 Options.max_background_jobs: 16
+2021/03/13-23:34:56.392546 7fca31f29a80 Options.max_background_compactions: -1
+2021/03/13-23:34:56.392547 7fca31f29a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:34:56.392547 7fca31f29a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:34:56.392548 7fca31f29a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:34:56.392549 7fca31f29a80 Options.max_total_wal_size: 0
+2021/03/13-23:34:56.392549 7fca31f29a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:34:56.392550 7fca31f29a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:34:56.392551 7fca31f29a80 Options.max_open_files: -1
+2021/03/13-23:34:56.392551 7fca31f29a80 Options.bytes_per_sync: 0
+2021/03/13-23:34:56.392552 7fca31f29a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:34:56.392552 7fca31f29a80 Options.compaction_readahead_size: 0
+2021/03/13-23:34:56.392553 7fca31f29a80 Compression algorithms supported:
+2021/03/13-23:34:56.392554 7fca31f29a80 Snappy supported: 1
+2021/03/13-23:34:56.392554 7fca31f29a80 Zlib supported: 1
+2021/03/13-23:34:56.392555 7fca31f29a80 Bzip supported: 1
+2021/03/13-23:34:56.392556 7fca31f29a80 LZ4 supported: 1
+2021/03/13-23:34:56.392556 7fca31f29a80 ZSTDNotFinal supported: 1
+2021/03/13-23:34:56.392561 7fca31f29a80 ZSTD supported: 1
+2021/03/13-23:34:56.392565 7fca31f29a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:34:56.392566 7fca31f29a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:34:56.392672 7fca31f29a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:34:56.392731 7fca31f29a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:34:56.392733 7fca31f29a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:34:56.392733 7fca31f29a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:34:56.392734 7fca31f29a80 Options.compaction_filter: None
+2021/03/13-23:34:56.392735 7fca31f29a80 Options.compaction_filter_factory: None
+2021/03/13-23:34:56.392735 7fca31f29a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:34:56.392736 7fca31f29a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:34:56.392751 7fca31f29a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22c6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x22abc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:34:56.392752 7fca31f29a80 Options.write_buffer_size: 134217728
+2021/03/13-23:34:56.392753 7fca31f29a80 Options.max_write_buffer_number: 6
+2021/03/13-23:34:56.392754 7fca31f29a80 Options.compression[0]: NoCompression
+2021/03/13-23:34:56.392754 7fca31f29a80 Options.compression[1]: NoCompression
+2021/03/13-23:34:56.392755 7fca31f29a80 Options.compression[2]: Snappy
+2021/03/13-23:34:56.392756 7fca31f29a80 Options.compression[3]: Snappy
+2021/03/13-23:34:56.392756 7fca31f29a80 Options.compression[4]: Snappy
+2021/03/13-23:34:56.392757 7fca31f29a80 Options.compression[5]: Snappy
+2021/03/13-23:34:56.392757 7fca31f29a80 Options.compression[6]: Snappy
+2021/03/13-23:34:56.392758 7fca31f29a80 Options.bottommost_compression: Disabled
+2021/03/13-23:34:56.392759 7fca31f29a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:34:56.392760 7fca31f29a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:34:56.392760 7fca31f29a80 Options.num_levels: 7
+2021/03/13-23:34:56.392761 7fca31f29a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:34:56.392762 7fca31f29a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:34:56.392762 7fca31f29a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:34:56.392763 7fca31f29a80 Options.compression_opts.level: -1
+2021/03/13-23:34:56.392763 7fca31f29a80 Options.compression_opts.strategy: 0
+2021/03/13-23:34:56.392764 7fca31f29a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:34:56.392765 7fca31f29a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:34:56.392765 7fca31f29a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:34:56.392766 7fca31f29a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:34:56.392767 7fca31f29a80 Options.target_file_size_base: 67108864
+2021/03/13-23:34:56.392767 7fca31f29a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:34:56.392768 7fca31f29a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:34:56.392769 7fca31f29a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:34:56.392769 7fca31f29a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:34:56.392771 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:34:56.392779 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:34:56.392780 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:34:56.392781 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:34:56.392781 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:34:56.392782 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:34:56.392783 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:34:56.392783 7fca31f29a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:34:56.392784 7fca31f29a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:34:56.392784 7fca31f29a80 Options.arena_block_size: 16777216
+2021/03/13-23:34:56.392785 7fca31f29a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:34:56.392786 7fca31f29a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:34:56.392786 7fca31f29a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:34:56.392787 7fca31f29a80 Options.disable_auto_compactions: 0
+2021/03/13-23:34:56.392789 7fca31f29a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:34:56.392789 7fca31f29a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:34:56.392790 7fca31f29a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:34:56.392791 7fca31f29a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:34:56.392791 7fca31f29a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:34:56.392792 7fca31f29a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:34:56.392793 7fca31f29a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:34:56.392794 7fca31f29a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:34:56.392794 7fca31f29a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:34:56.392795 7fca31f29a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:34:56.392795 7fca31f29a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:34:56.392796 7fca31f29a80 Options.table_properties_collectors:
+2021/03/13-23:34:56.392797 7fca31f29a80 Options.inplace_update_support: 0
+2021/03/13-23:34:56.392797 7fca31f29a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:34:56.392798 7fca31f29a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:34:56.392799 7fca31f29a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:34:56.392800 7fca31f29a80 Options.bloom_locality: 0
+2021/03/13-23:34:56.392800 7fca31f29a80 Options.max_successive_merges: 0
+2021/03/13-23:34:56.392801 7fca31f29a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:34:56.392801 7fca31f29a80 Options.paranoid_file_checks: 0
+2021/03/13-23:34:56.392802 7fca31f29a80 Options.force_consistency_checks: 0
+2021/03/13-23:34:56.392803 7fca31f29a80 Options.report_bg_io_stats: 0
+2021/03/13-23:34:56.393298 7fca31f29a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:34:56.393303 7fca31f29a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:34:56.393442 7fca31f29a80 EVENT_LOG_v1 {"time_micros": 1615674896393423, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:34:56.393452 7fca31f29a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:34:57.098227 7fca31f29a80 EVENT_LOG_v1 {"time_micros": 1615674897098223, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674897820260 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674897820260
new file mode 100644
index 0000000..b194305
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674897820260
@@ -0,0 +1,186 @@
+2021/03/13-23:34:57.110441 7fca31f29a80 RocksDB version: 5.11.3
+2021/03/13-23:34:57.110498 7fca31f29a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:34:57.110500 7fca31f29a80 Compile date Mar 13 2021
+2021/03/13-23:34:57.110504 7fca31f29a80 DB SUMMARY
+2021/03/13-23:34:57.110566 7fca31f29a80 CURRENT file: CURRENT
+2021/03/13-23:34:57.110567 7fca31f29a80 IDENTITY file: IDENTITY
+2021/03/13-23:34:57.110573 7fca31f29a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:34:57.110574 7fca31f29a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:34:57.110575 7fca31f29a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:34:57.110578 7fca31f29a80 Options.error_if_exists: 0
+2021/03/13-23:34:57.110579 7fca31f29a80 Options.create_if_missing: 1
+2021/03/13-23:34:57.110580 7fca31f29a80 Options.paranoid_checks: 1
+2021/03/13-23:34:57.110580 7fca31f29a80 Options.env: 0x7fca328e3080
+2021/03/13-23:34:57.110581 7fca31f29a80 Options.info_log: 0x22ceca0
+2021/03/13-23:34:57.110581 7fca31f29a80 Options.max_file_opening_threads: 16
+2021/03/13-23:34:57.110582 7fca31f29a80 Options.statistics: (nil)
+2021/03/13-23:34:57.110583 7fca31f29a80 Options.use_fsync: 0
+2021/03/13-23:34:57.110583 7fca31f29a80 Options.max_log_file_size: 0
+2021/03/13-23:34:57.110584 7fca31f29a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:34:57.110584 7fca31f29a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:34:57.110585 7fca31f29a80 Options.keep_log_file_num: 1000
+2021/03/13-23:34:57.110586 7fca31f29a80 Options.recycle_log_file_num: 0
+2021/03/13-23:34:57.110586 7fca31f29a80 Options.allow_fallocate: 1
+2021/03/13-23:34:57.110587 7fca31f29a80 Options.allow_mmap_reads: 0
+2021/03/13-23:34:57.110587 7fca31f29a80 Options.allow_mmap_writes: 0
+2021/03/13-23:34:57.110588 7fca31f29a80 Options.use_direct_reads: 0
+2021/03/13-23:34:57.110588 7fca31f29a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:34:57.110589 7fca31f29a80 Options.create_missing_column_families: 0
+2021/03/13-23:34:57.110590 7fca31f29a80 Options.db_log_dir:
+2021/03/13-23:34:57.110590 7fca31f29a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:34:57.110591 7fca31f29a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:34:57.110591 7fca31f29a80 Options.max_subcompactions: 1
+2021/03/13-23:34:57.110592 7fca31f29a80 Options.max_background_flushes: -1
+2021/03/13-23:34:57.110592 7fca31f29a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:34:57.110593 7fca31f29a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:34:57.110594 7fca31f29a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:34:57.110594 7fca31f29a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:34:57.110595 7fca31f29a80 Options.advise_random_on_open: 1
+2021/03/13-23:34:57.110595 7fca31f29a80 Options.db_write_buffer_size: 0
+2021/03/13-23:34:57.110596 7fca31f29a80 Options.write_buffer_manager: 0x22b6b90
+2021/03/13-23:34:57.110596 7fca31f29a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:34:57.110597 7fca31f29a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:34:57.110597 7fca31f29a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:34:57.110598 7fca31f29a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:34:57.110599 7fca31f29a80 Options.rate_limiter: (nil)
+2021/03/13-23:34:57.110600 7fca31f29a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:34:57.110607 7fca31f29a80 Options.wal_recovery_mode: 2
+2021/03/13-23:34:57.110608 7fca31f29a80 Options.enable_thread_tracking: 0
+2021/03/13-23:34:57.110609 7fca31f29a80 Options.enable_pipelined_write: 0
+2021/03/13-23:34:57.110609 7fca31f29a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:34:57.110610 7fca31f29a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:34:57.110610 7fca31f29a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:34:57.110611 7fca31f29a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:34:57.110612 7fca31f29a80 Options.row_cache: None
+2021/03/13-23:34:57.110612 7fca31f29a80 Options.wal_filter: None
+2021/03/13-23:34:57.110613 7fca31f29a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:34:57.110613 7fca31f29a80 Options.allow_ingest_behind: 0
+2021/03/13-23:34:57.110614 7fca31f29a80 Options.preserve_deletes: 0
+2021/03/13-23:34:57.110614 7fca31f29a80 Options.two_write_queues: 0
+2021/03/13-23:34:57.110615 7fca31f29a80 Options.manual_wal_flush: 0
+2021/03/13-23:34:57.110616 7fca31f29a80 Options.max_background_jobs: 16
+2021/03/13-23:34:57.110617 7fca31f29a80 Options.max_background_compactions: -1
+2021/03/13-23:34:57.110617 7fca31f29a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:34:57.110618 7fca31f29a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:34:57.110618 7fca31f29a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:34:57.110619 7fca31f29a80 Options.max_total_wal_size: 0
+2021/03/13-23:34:57.110619 7fca31f29a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:34:57.110620 7fca31f29a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:34:57.110621 7fca31f29a80 Options.max_open_files: -1
+2021/03/13-23:34:57.110621 7fca31f29a80 Options.bytes_per_sync: 0
+2021/03/13-23:34:57.110622 7fca31f29a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:34:57.110622 7fca31f29a80 Options.compaction_readahead_size: 0
+2021/03/13-23:34:57.110623 7fca31f29a80 Compression algorithms supported:
+2021/03/13-23:34:57.110623 7fca31f29a80 Snappy supported: 1
+2021/03/13-23:34:57.110624 7fca31f29a80 Zlib supported: 1
+2021/03/13-23:34:57.110625 7fca31f29a80 Bzip supported: 1
+2021/03/13-23:34:57.110625 7fca31f29a80 LZ4 supported: 1
+2021/03/13-23:34:57.110626 7fca31f29a80 ZSTDNotFinal supported: 1
+2021/03/13-23:34:57.110630 7fca31f29a80 ZSTD supported: 1
+2021/03/13-23:34:57.110633 7fca31f29a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:34:57.110634 7fca31f29a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:34:57.110721 7fca31f29a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:34:57.110772 7fca31f29a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:34:57.110774 7fca31f29a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:34:57.110775 7fca31f29a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:34:57.110775 7fca31f29a80 Options.compaction_filter: None
+2021/03/13-23:34:57.110776 7fca31f29a80 Options.compaction_filter_factory: None
+2021/03/13-23:34:57.110776 7fca31f29a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:34:57.110777 7fca31f29a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:34:57.110791 7fca31f29a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22c6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x22abc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:34:57.110792 7fca31f29a80 Options.write_buffer_size: 134217728
+2021/03/13-23:34:57.110792 7fca31f29a80 Options.max_write_buffer_number: 6
+2021/03/13-23:34:57.110793 7fca31f29a80 Options.compression[0]: NoCompression
+2021/03/13-23:34:57.110794 7fca31f29a80 Options.compression[1]: NoCompression
+2021/03/13-23:34:57.110794 7fca31f29a80 Options.compression[2]: Snappy
+2021/03/13-23:34:57.110795 7fca31f29a80 Options.compression[3]: Snappy
+2021/03/13-23:34:57.110795 7fca31f29a80 Options.compression[4]: Snappy
+2021/03/13-23:34:57.110796 7fca31f29a80 Options.compression[5]: Snappy
+2021/03/13-23:34:57.110796 7fca31f29a80 Options.compression[6]: Snappy
+2021/03/13-23:34:57.110797 7fca31f29a80 Options.bottommost_compression: Disabled
+2021/03/13-23:34:57.110798 7fca31f29a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:34:57.110798 7fca31f29a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:34:57.110799 7fca31f29a80 Options.num_levels: 7
+2021/03/13-23:34:57.110799 7fca31f29a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:34:57.110800 7fca31f29a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:34:57.110801 7fca31f29a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:34:57.110801 7fca31f29a80 Options.compression_opts.level: -1
+2021/03/13-23:34:57.110802 7fca31f29a80 Options.compression_opts.strategy: 0
+2021/03/13-23:34:57.110802 7fca31f29a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:34:57.110803 7fca31f29a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:34:57.110803 7fca31f29a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:34:57.110804 7fca31f29a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:34:57.110804 7fca31f29a80 Options.target_file_size_base: 67108864
+2021/03/13-23:34:57.110805 7fca31f29a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:34:57.110806 7fca31f29a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:34:57.110806 7fca31f29a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:34:57.110807 7fca31f29a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:34:57.110808 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:34:57.110816 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:34:57.110817 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:34:57.110817 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:34:57.110818 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:34:57.110818 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:34:57.110819 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:34:57.110820 7fca31f29a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:34:57.110820 7fca31f29a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:34:57.110821 7fca31f29a80 Options.arena_block_size: 16777216
+2021/03/13-23:34:57.110821 7fca31f29a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:34:57.110822 7fca31f29a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:34:57.110822 7fca31f29a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:34:57.110823 7fca31f29a80 Options.disable_auto_compactions: 0
+2021/03/13-23:34:57.110825 7fca31f29a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:34:57.110825 7fca31f29a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:34:57.110826 7fca31f29a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:34:57.110826 7fca31f29a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:34:57.110827 7fca31f29a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:34:57.110828 7fca31f29a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:34:57.110828 7fca31f29a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:34:57.110829 7fca31f29a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:34:57.110830 7fca31f29a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:34:57.110830 7fca31f29a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:34:57.110831 7fca31f29a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:34:57.110831 7fca31f29a80 Options.table_properties_collectors:
+2021/03/13-23:34:57.110832 7fca31f29a80 Options.inplace_update_support: 0
+2021/03/13-23:34:57.110832 7fca31f29a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:34:57.110833 7fca31f29a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:34:57.110834 7fca31f29a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:34:57.110834 7fca31f29a80 Options.bloom_locality: 0
+2021/03/13-23:34:57.110835 7fca31f29a80 Options.max_successive_merges: 0
+2021/03/13-23:34:57.110836 7fca31f29a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:34:57.110836 7fca31f29a80 Options.paranoid_file_checks: 0
+2021/03/13-23:34:57.110837 7fca31f29a80 Options.force_consistency_checks: 0
+2021/03/13-23:34:57.110837 7fca31f29a80 Options.report_bg_io_stats: 0
+2021/03/13-23:34:57.111196 7fca31f29a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:34:57.111198 7fca31f29a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:34:57.111290 7fca31f29a80 EVENT_LOG_v1 {"time_micros": 1615674897111280, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:34:57.111295 7fca31f29a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:34:57.807894 7fca31f29a80 EVENT_LOG_v1 {"time_micros": 1615674897807890, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674898528590 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674898528590
new file mode 100644
index 0000000..fb6661f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674898528590
@@ -0,0 +1,186 @@
+2021/03/13-23:34:57.820602 7fca31f29a80 RocksDB version: 5.11.3
+2021/03/13-23:34:57.820660 7fca31f29a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:34:57.820661 7fca31f29a80 Compile date Mar 13 2021
+2021/03/13-23:34:57.820665 7fca31f29a80 DB SUMMARY
+2021/03/13-23:34:57.820729 7fca31f29a80 CURRENT file: CURRENT
+2021/03/13-23:34:57.820730 7fca31f29a80 IDENTITY file: IDENTITY
+2021/03/13-23:34:57.820735 7fca31f29a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:34:57.820737 7fca31f29a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:34:57.820737 7fca31f29a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:34:57.820741 7fca31f29a80 Options.error_if_exists: 0
+2021/03/13-23:34:57.820742 7fca31f29a80 Options.create_if_missing: 1
+2021/03/13-23:34:57.820742 7fca31f29a80 Options.paranoid_checks: 1
+2021/03/13-23:34:57.820743 7fca31f29a80 Options.env: 0x7fca328e3080
+2021/03/13-23:34:57.820744 7fca31f29a80 Options.info_log: 0x22ceca0
+2021/03/13-23:34:57.820744 7fca31f29a80 Options.max_file_opening_threads: 16
+2021/03/13-23:34:57.820745 7fca31f29a80 Options.statistics: (nil)
+2021/03/13-23:34:57.820745 7fca31f29a80 Options.use_fsync: 0
+2021/03/13-23:34:57.820746 7fca31f29a80 Options.max_log_file_size: 0
+2021/03/13-23:34:57.820747 7fca31f29a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:34:57.820747 7fca31f29a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:34:57.820748 7fca31f29a80 Options.keep_log_file_num: 1000
+2021/03/13-23:34:57.820748 7fca31f29a80 Options.recycle_log_file_num: 0
+2021/03/13-23:34:57.820749 7fca31f29a80 Options.allow_fallocate: 1
+2021/03/13-23:34:57.820749 7fca31f29a80 Options.allow_mmap_reads: 0
+2021/03/13-23:34:57.820750 7fca31f29a80 Options.allow_mmap_writes: 0
+2021/03/13-23:34:57.820751 7fca31f29a80 Options.use_direct_reads: 0
+2021/03/13-23:34:57.820751 7fca31f29a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:34:57.820752 7fca31f29a80 Options.create_missing_column_families: 0
+2021/03/13-23:34:57.820752 7fca31f29a80 Options.db_log_dir:
+2021/03/13-23:34:57.820753 7fca31f29a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:34:57.820753 7fca31f29a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:34:57.820754 7fca31f29a80 Options.max_subcompactions: 1
+2021/03/13-23:34:57.820754 7fca31f29a80 Options.max_background_flushes: -1
+2021/03/13-23:34:57.820755 7fca31f29a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:34:57.820756 7fca31f29a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:34:57.820756 7fca31f29a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:34:57.820757 7fca31f29a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:34:57.820757 7fca31f29a80 Options.advise_random_on_open: 1
+2021/03/13-23:34:57.820758 7fca31f29a80 Options.db_write_buffer_size: 0
+2021/03/13-23:34:57.820758 7fca31f29a80 Options.write_buffer_manager: 0x22b6b90
+2021/03/13-23:34:57.820759 7fca31f29a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:34:57.820760 7fca31f29a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:34:57.820760 7fca31f29a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:34:57.820761 7fca31f29a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:34:57.820761 7fca31f29a80 Options.rate_limiter: (nil)
+2021/03/13-23:34:57.820762 7fca31f29a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:34:57.820770 7fca31f29a80 Options.wal_recovery_mode: 2
+2021/03/13-23:34:57.820771 7fca31f29a80 Options.enable_thread_tracking: 0
+2021/03/13-23:34:57.820772 7fca31f29a80 Options.enable_pipelined_write: 0
+2021/03/13-23:34:57.820772 7fca31f29a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:34:57.820773 7fca31f29a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:34:57.820773 7fca31f29a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:34:57.820774 7fca31f29a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:34:57.820774 7fca31f29a80 Options.row_cache: None
+2021/03/13-23:34:57.820775 7fca31f29a80 Options.wal_filter: None
+2021/03/13-23:34:57.820776 7fca31f29a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:34:57.820776 7fca31f29a80 Options.allow_ingest_behind: 0
+2021/03/13-23:34:57.820777 7fca31f29a80 Options.preserve_deletes: 0
+2021/03/13-23:34:57.820777 7fca31f29a80 Options.two_write_queues: 0
+2021/03/13-23:34:57.820778 7fca31f29a80 Options.manual_wal_flush: 0
+2021/03/13-23:34:57.820779 7fca31f29a80 Options.max_background_jobs: 16
+2021/03/13-23:34:57.820780 7fca31f29a80 Options.max_background_compactions: -1
+2021/03/13-23:34:57.820780 7fca31f29a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:34:57.820781 7fca31f29a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:34:57.820781 7fca31f29a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:34:57.820782 7fca31f29a80 Options.max_total_wal_size: 0
+2021/03/13-23:34:57.820782 7fca31f29a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:34:57.820783 7fca31f29a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:34:57.820784 7fca31f29a80 Options.max_open_files: -1
+2021/03/13-23:34:57.820784 7fca31f29a80 Options.bytes_per_sync: 0
+2021/03/13-23:34:57.820785 7fca31f29a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:34:57.820785 7fca31f29a80 Options.compaction_readahead_size: 0
+2021/03/13-23:34:57.820786 7fca31f29a80 Compression algorithms supported:
+2021/03/13-23:34:57.820786 7fca31f29a80 Snappy supported: 1
+2021/03/13-23:34:57.820787 7fca31f29a80 Zlib supported: 1
+2021/03/13-23:34:57.820787 7fca31f29a80 Bzip supported: 1
+2021/03/13-23:34:57.820788 7fca31f29a80 LZ4 supported: 1
+2021/03/13-23:34:57.820789 7fca31f29a80 ZSTDNotFinal supported: 1
+2021/03/13-23:34:57.820792 7fca31f29a80 ZSTD supported: 1
+2021/03/13-23:34:57.820795 7fca31f29a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:34:57.820797 7fca31f29a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:34:57.820885 7fca31f29a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:34:57.820937 7fca31f29a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:34:57.820939 7fca31f29a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:34:57.820940 7fca31f29a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:34:57.820940 7fca31f29a80 Options.compaction_filter: None
+2021/03/13-23:34:57.820941 7fca31f29a80 Options.compaction_filter_factory: None
+2021/03/13-23:34:57.820941 7fca31f29a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:34:57.820942 7fca31f29a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:34:57.820956 7fca31f29a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22c6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x22abc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:34:57.820957 7fca31f29a80 Options.write_buffer_size: 134217728
+2021/03/13-23:34:57.820957 7fca31f29a80 Options.max_write_buffer_number: 6
+2021/03/13-23:34:57.820958 7fca31f29a80 Options.compression[0]: NoCompression
+2021/03/13-23:34:57.820959 7fca31f29a80 Options.compression[1]: NoCompression
+2021/03/13-23:34:57.820959 7fca31f29a80 Options.compression[2]: Snappy
+2021/03/13-23:34:57.820960 7fca31f29a80 Options.compression[3]: Snappy
+2021/03/13-23:34:57.820961 7fca31f29a80 Options.compression[4]: Snappy
+2021/03/13-23:34:57.820961 7fca31f29a80 Options.compression[5]: Snappy
+2021/03/13-23:34:57.820962 7fca31f29a80 Options.compression[6]: Snappy
+2021/03/13-23:34:57.820962 7fca31f29a80 Options.bottommost_compression: Disabled
+2021/03/13-23:34:57.820963 7fca31f29a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:34:57.820963 7fca31f29a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:34:57.820964 7fca31f29a80 Options.num_levels: 7
+2021/03/13-23:34:57.820965 7fca31f29a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:34:57.820965 7fca31f29a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:34:57.820966 7fca31f29a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:34:57.820966 7fca31f29a80 Options.compression_opts.level: -1
+2021/03/13-23:34:57.820967 7fca31f29a80 Options.compression_opts.strategy: 0
+2021/03/13-23:34:57.820967 7fca31f29a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:34:57.820968 7fca31f29a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:34:57.820969 7fca31f29a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:34:57.820969 7fca31f29a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:34:57.820970 7fca31f29a80 Options.target_file_size_base: 67108864
+2021/03/13-23:34:57.820970 7fca31f29a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:34:57.820971 7fca31f29a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:34:57.820972 7fca31f29a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:34:57.820972 7fca31f29a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:34:57.820974 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:34:57.820981 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:34:57.820982 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:34:57.820982 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:34:57.820983 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:34:57.820983 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:34:57.820984 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:34:57.820984 7fca31f29a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:34:57.820985 7fca31f29a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:34:57.820986 7fca31f29a80 Options.arena_block_size: 16777216
+2021/03/13-23:34:57.820986 7fca31f29a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:34:57.820987 7fca31f29a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:34:57.820987 7fca31f29a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:34:57.820988 7fca31f29a80 Options.disable_auto_compactions: 0
+2021/03/13-23:34:57.820990 7fca31f29a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:34:57.820990 7fca31f29a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:34:57.820991 7fca31f29a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:34:57.820991 7fca31f29a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:34:57.820992 7fca31f29a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:34:57.820993 7fca31f29a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:34:57.820993 7fca31f29a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:34:57.820994 7fca31f29a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:34:57.820995 7fca31f29a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:34:57.820995 7fca31f29a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:34:57.820996 7fca31f29a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:34:57.820996 7fca31f29a80 Options.table_properties_collectors:
+2021/03/13-23:34:57.820997 7fca31f29a80 Options.inplace_update_support: 0
+2021/03/13-23:34:57.820997 7fca31f29a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:34:57.820998 7fca31f29a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:34:57.820999 7fca31f29a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:34:57.820999 7fca31f29a80 Options.bloom_locality: 0
+2021/03/13-23:34:57.821000 7fca31f29a80 Options.max_successive_merges: 0
+2021/03/13-23:34:57.821001 7fca31f29a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:34:57.821001 7fca31f29a80 Options.paranoid_file_checks: 0
+2021/03/13-23:34:57.821002 7fca31f29a80 Options.force_consistency_checks: 0
+2021/03/13-23:34:57.821002 7fca31f29a80 Options.report_bg_io_stats: 0
+2021/03/13-23:34:57.821375 7fca31f29a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:34:57.821378 7fca31f29a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:34:57.821462 7fca31f29a80 EVENT_LOG_v1 {"time_micros": 1615674897821452, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:34:57.821467 7fca31f29a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:34:58.516680 7fca31f29a80 EVENT_LOG_v1 {"time_micros": 1615674898516676, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674944904105 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674944904105
new file mode 100644
index 0000000..e8b9b48
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674944904105
@@ -0,0 +1,186 @@
+2021/03/13-23:34:58.528918 7fca31f29a80 RocksDB version: 5.11.3
+2021/03/13-23:34:58.528973 7fca31f29a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:34:58.528975 7fca31f29a80 Compile date Mar 13 2021
+2021/03/13-23:34:58.528979 7fca31f29a80 DB SUMMARY
+2021/03/13-23:34:58.529042 7fca31f29a80 CURRENT file: CURRENT
+2021/03/13-23:34:58.529043 7fca31f29a80 IDENTITY file: IDENTITY
+2021/03/13-23:34:58.529049 7fca31f29a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:34:58.529050 7fca31f29a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:34:58.529051 7fca31f29a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:34:58.529055 7fca31f29a80 Options.error_if_exists: 0
+2021/03/13-23:34:58.529056 7fca31f29a80 Options.create_if_missing: 1
+2021/03/13-23:34:58.529056 7fca31f29a80 Options.paranoid_checks: 1
+2021/03/13-23:34:58.529057 7fca31f29a80 Options.env: 0x7fca328e3080
+2021/03/13-23:34:58.529057 7fca31f29a80 Options.info_log: 0x22ceca0
+2021/03/13-23:34:58.529058 7fca31f29a80 Options.max_file_opening_threads: 16
+2021/03/13-23:34:58.529059 7fca31f29a80 Options.statistics: (nil)
+2021/03/13-23:34:58.529059 7fca31f29a80 Options.use_fsync: 0
+2021/03/13-23:34:58.529060 7fca31f29a80 Options.max_log_file_size: 0
+2021/03/13-23:34:58.529060 7fca31f29a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:34:58.529061 7fca31f29a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:34:58.529062 7fca31f29a80 Options.keep_log_file_num: 1000
+2021/03/13-23:34:58.529062 7fca31f29a80 Options.recycle_log_file_num: 0
+2021/03/13-23:34:58.529063 7fca31f29a80 Options.allow_fallocate: 1
+2021/03/13-23:34:58.529063 7fca31f29a80 Options.allow_mmap_reads: 0
+2021/03/13-23:34:58.529064 7fca31f29a80 Options.allow_mmap_writes: 0
+2021/03/13-23:34:58.529064 7fca31f29a80 Options.use_direct_reads: 0
+2021/03/13-23:34:58.529065 7fca31f29a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:34:58.529066 7fca31f29a80 Options.create_missing_column_families: 0
+2021/03/13-23:34:58.529066 7fca31f29a80 Options.db_log_dir:
+2021/03/13-23:34:58.529067 7fca31f29a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:34:58.529067 7fca31f29a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:34:58.529068 7fca31f29a80 Options.max_subcompactions: 1
+2021/03/13-23:34:58.529068 7fca31f29a80 Options.max_background_flushes: -1
+2021/03/13-23:34:58.529069 7fca31f29a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:34:58.529069 7fca31f29a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:34:58.529070 7fca31f29a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:34:58.529071 7fca31f29a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:34:58.529071 7fca31f29a80 Options.advise_random_on_open: 1
+2021/03/13-23:34:58.529072 7fca31f29a80 Options.db_write_buffer_size: 0
+2021/03/13-23:34:58.529072 7fca31f29a80 Options.write_buffer_manager: 0x22b6b90
+2021/03/13-23:34:58.529073 7fca31f29a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:34:58.529073 7fca31f29a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:34:58.529074 7fca31f29a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:34:58.529074 7fca31f29a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:34:58.529075 7fca31f29a80 Options.rate_limiter: (nil)
+2021/03/13-23:34:58.529076 7fca31f29a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:34:58.529084 7fca31f29a80 Options.wal_recovery_mode: 2
+2021/03/13-23:34:58.529085 7fca31f29a80 Options.enable_thread_tracking: 0
+2021/03/13-23:34:58.529085 7fca31f29a80 Options.enable_pipelined_write: 0
+2021/03/13-23:34:58.529086 7fca31f29a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:34:58.529086 7fca31f29a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:34:58.529087 7fca31f29a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:34:58.529087 7fca31f29a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:34:58.529088 7fca31f29a80 Options.row_cache: None
+2021/03/13-23:34:58.529089 7fca31f29a80 Options.wal_filter: None
+2021/03/13-23:34:58.529089 7fca31f29a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:34:58.529090 7fca31f29a80 Options.allow_ingest_behind: 0
+2021/03/13-23:34:58.529090 7fca31f29a80 Options.preserve_deletes: 0
+2021/03/13-23:34:58.529091 7fca31f29a80 Options.two_write_queues: 0
+2021/03/13-23:34:58.529091 7fca31f29a80 Options.manual_wal_flush: 0
+2021/03/13-23:34:58.529092 7fca31f29a80 Options.max_background_jobs: 16
+2021/03/13-23:34:58.529093 7fca31f29a80 Options.max_background_compactions: -1
+2021/03/13-23:34:58.529094 7fca31f29a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:34:58.529094 7fca31f29a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:34:58.529095 7fca31f29a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:34:58.529095 7fca31f29a80 Options.max_total_wal_size: 0
+2021/03/13-23:34:58.529096 7fca31f29a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:34:58.529096 7fca31f29a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:34:58.529097 7fca31f29a80 Options.max_open_files: -1
+2021/03/13-23:34:58.529098 7fca31f29a80 Options.bytes_per_sync: 0
+2021/03/13-23:34:58.529098 7fca31f29a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:34:58.529099 7fca31f29a80 Options.compaction_readahead_size: 0
+2021/03/13-23:34:58.529099 7fca31f29a80 Compression algorithms supported:
+2021/03/13-23:34:58.529100 7fca31f29a80 Snappy supported: 1
+2021/03/13-23:34:58.529100 7fca31f29a80 Zlib supported: 1
+2021/03/13-23:34:58.529101 7fca31f29a80 Bzip supported: 1
+2021/03/13-23:34:58.529101 7fca31f29a80 LZ4 supported: 1
+2021/03/13-23:34:58.529102 7fca31f29a80 ZSTDNotFinal supported: 1
+2021/03/13-23:34:58.529106 7fca31f29a80 ZSTD supported: 1
+2021/03/13-23:34:58.529109 7fca31f29a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:34:58.529110 7fca31f29a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:34:58.529198 7fca31f29a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:34:58.529257 7fca31f29a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:34:58.529259 7fca31f29a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:34:58.529259 7fca31f29a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:34:58.529260 7fca31f29a80 Options.compaction_filter: None
+2021/03/13-23:34:58.529261 7fca31f29a80 Options.compaction_filter_factory: None
+2021/03/13-23:34:58.529262 7fca31f29a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:34:58.529262 7fca31f29a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:34:58.529275 7fca31f29a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22c6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x22abc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:34:58.529276 7fca31f29a80 Options.write_buffer_size: 134217728
+2021/03/13-23:34:58.529277 7fca31f29a80 Options.max_write_buffer_number: 6
+2021/03/13-23:34:58.529277 7fca31f29a80 Options.compression[0]: NoCompression
+2021/03/13-23:34:58.529278 7fca31f29a80 Options.compression[1]: NoCompression
+2021/03/13-23:34:58.529279 7fca31f29a80 Options.compression[2]: Snappy
+2021/03/13-23:34:58.529279 7fca31f29a80 Options.compression[3]: Snappy
+2021/03/13-23:34:58.529295 7fca31f29a80 Options.compression[4]: Snappy
+2021/03/13-23:34:58.529295 7fca31f29a80 Options.compression[5]: Snappy
+2021/03/13-23:34:58.529296 7fca31f29a80 Options.compression[6]: Snappy
+2021/03/13-23:34:58.529297 7fca31f29a80 Options.bottommost_compression: Disabled
+2021/03/13-23:34:58.529297 7fca31f29a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:34:58.529298 7fca31f29a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:34:58.529298 7fca31f29a80 Options.num_levels: 7
+2021/03/13-23:34:58.529299 7fca31f29a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:34:58.529299 7fca31f29a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:34:58.529300 7fca31f29a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:34:58.529301 7fca31f29a80 Options.compression_opts.level: -1
+2021/03/13-23:34:58.529301 7fca31f29a80 Options.compression_opts.strategy: 0
+2021/03/13-23:34:58.529302 7fca31f29a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:34:58.529302 7fca31f29a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:34:58.529303 7fca31f29a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:34:58.529303 7fca31f29a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:34:58.529304 7fca31f29a80 Options.target_file_size_base: 67108864
+2021/03/13-23:34:58.529304 7fca31f29a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:34:58.529305 7fca31f29a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:34:58.529305 7fca31f29a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:34:58.529306 7fca31f29a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:34:58.529307 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:34:58.529316 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:34:58.529317 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:34:58.529317 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:34:58.529318 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:34:58.529318 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:34:58.529319 7fca31f29a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:34:58.529319 7fca31f29a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:34:58.529320 7fca31f29a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:34:58.529321 7fca31f29a80 Options.arena_block_size: 16777216
+2021/03/13-23:34:58.529321 7fca31f29a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:34:58.529322 7fca31f29a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:34:58.529322 7fca31f29a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:34:58.529323 7fca31f29a80 Options.disable_auto_compactions: 0
+2021/03/13-23:34:58.529324 7fca31f29a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:34:58.529325 7fca31f29a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:34:58.529326 7fca31f29a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:34:58.529326 7fca31f29a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:34:58.529327 7fca31f29a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:34:58.529327 7fca31f29a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:34:58.529328 7fca31f29a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:34:58.529329 7fca31f29a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:34:58.529329 7fca31f29a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:34:58.529330 7fca31f29a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:34:58.529330 7fca31f29a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:34:58.529331 7fca31f29a80 Options.table_properties_collectors:
+2021/03/13-23:34:58.529331 7fca31f29a80 Options.inplace_update_support: 0
+2021/03/13-23:34:58.529332 7fca31f29a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:34:58.529333 7fca31f29a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:34:58.529333 7fca31f29a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:34:58.529334 7fca31f29a80 Options.bloom_locality: 0
+2021/03/13-23:34:58.529334 7fca31f29a80 Options.max_successive_merges: 0
+2021/03/13-23:34:58.529335 7fca31f29a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:34:58.529336 7fca31f29a80 Options.paranoid_file_checks: 0
+2021/03/13-23:34:58.529336 7fca31f29a80 Options.force_consistency_checks: 0
+2021/03/13-23:34:58.529337 7fca31f29a80 Options.report_bg_io_stats: 0
+2021/03/13-23:34:58.529806 7fca31f29a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:34:58.529809 7fca31f29a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:34:58.529892 7fca31f29a80 EVENT_LOG_v1 {"time_micros": 1615674898529882, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:34:58.529897 7fca31f29a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:34:59.223002 7fca31f29a80 EVENT_LOG_v1 {"time_micros": 1615674899222998, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674945615349 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674945615349
new file mode 100644
index 0000000..73fd1aa
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674945615349
@@ -0,0 +1,186 @@
+2021/03/13-23:35:44.904474 7fb846714a80 RocksDB version: 5.11.3
+2021/03/13-23:35:44.904542 7fb846714a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:35:44.904544 7fb846714a80 Compile date Mar 13 2021
+2021/03/13-23:35:44.904549 7fb846714a80 DB SUMMARY
+2021/03/13-23:35:44.904618 7fb846714a80 CURRENT file: CURRENT
+2021/03/13-23:35:44.904619 7fb846714a80 IDENTITY file: IDENTITY
+2021/03/13-23:35:44.904626 7fb846714a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:35:44.904627 7fb846714a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:35:44.904628 7fb846714a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:35:44.904632 7fb846714a80 Options.error_if_exists: 0
+2021/03/13-23:35:44.904633 7fb846714a80 Options.create_if_missing: 1
+2021/03/13-23:35:44.904633 7fb846714a80 Options.paranoid_checks: 1
+2021/03/13-23:35:44.904634 7fb846714a80 Options.env: 0x7fb8470ce080
+2021/03/13-23:35:44.904635 7fb846714a80 Options.info_log: 0x10c0ca0
+2021/03/13-23:35:44.904635 7fb846714a80 Options.max_file_opening_threads: 16
+2021/03/13-23:35:44.904636 7fb846714a80 Options.statistics: (nil)
+2021/03/13-23:35:44.904637 7fb846714a80 Options.use_fsync: 0
+2021/03/13-23:35:44.904638 7fb846714a80 Options.max_log_file_size: 0
+2021/03/13-23:35:44.904638 7fb846714a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:35:44.904639 7fb846714a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:35:44.904640 7fb846714a80 Options.keep_log_file_num: 1000
+2021/03/13-23:35:44.904640 7fb846714a80 Options.recycle_log_file_num: 0
+2021/03/13-23:35:44.904641 7fb846714a80 Options.allow_fallocate: 1
+2021/03/13-23:35:44.904642 7fb846714a80 Options.allow_mmap_reads: 0
+2021/03/13-23:35:44.904642 7fb846714a80 Options.allow_mmap_writes: 0
+2021/03/13-23:35:44.904643 7fb846714a80 Options.use_direct_reads: 0
+2021/03/13-23:35:44.904643 7fb846714a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:35:44.904644 7fb846714a80 Options.create_missing_column_families: 0
+2021/03/13-23:35:44.904645 7fb846714a80 Options.db_log_dir:
+2021/03/13-23:35:44.904645 7fb846714a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:35:44.904646 7fb846714a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:35:44.904647 7fb846714a80 Options.max_subcompactions: 1
+2021/03/13-23:35:44.904647 7fb846714a80 Options.max_background_flushes: -1
+2021/03/13-23:35:44.904648 7fb846714a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:35:44.904649 7fb846714a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:35:44.904649 7fb846714a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:35:44.904650 7fb846714a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:35:44.904650 7fb846714a80 Options.advise_random_on_open: 1
+2021/03/13-23:35:44.904651 7fb846714a80 Options.db_write_buffer_size: 0
+2021/03/13-23:35:44.904652 7fb846714a80 Options.write_buffer_manager: 0x10a8b90
+2021/03/13-23:35:44.904652 7fb846714a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:35:44.904653 7fb846714a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:35:44.904654 7fb846714a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:35:44.904654 7fb846714a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:35:44.904655 7fb846714a80 Options.rate_limiter: (nil)
+2021/03/13-23:35:44.904656 7fb846714a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:35:44.904664 7fb846714a80 Options.wal_recovery_mode: 2
+2021/03/13-23:35:44.904665 7fb846714a80 Options.enable_thread_tracking: 0
+2021/03/13-23:35:44.904666 7fb846714a80 Options.enable_pipelined_write: 0
+2021/03/13-23:35:44.904666 7fb846714a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:35:44.904667 7fb846714a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:35:44.904668 7fb846714a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:35:44.904668 7fb846714a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:35:44.904669 7fb846714a80 Options.row_cache: None
+2021/03/13-23:35:44.904669 7fb846714a80 Options.wal_filter: None
+2021/03/13-23:35:44.904670 7fb846714a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:35:44.904671 7fb846714a80 Options.allow_ingest_behind: 0
+2021/03/13-23:35:44.904671 7fb846714a80 Options.preserve_deletes: 0
+2021/03/13-23:35:44.904672 7fb846714a80 Options.two_write_queues: 0
+2021/03/13-23:35:44.904672 7fb846714a80 Options.manual_wal_flush: 0
+2021/03/13-23:35:44.904674 7fb846714a80 Options.max_background_jobs: 16
+2021/03/13-23:35:44.904674 7fb846714a80 Options.max_background_compactions: -1
+2021/03/13-23:35:44.904675 7fb846714a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:35:44.904676 7fb846714a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:35:44.904676 7fb846714a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:35:44.904677 7fb846714a80 Options.max_total_wal_size: 0
+2021/03/13-23:35:44.904678 7fb846714a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:35:44.904678 7fb846714a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:35:44.904679 7fb846714a80 Options.max_open_files: -1
+2021/03/13-23:35:44.904680 7fb846714a80 Options.bytes_per_sync: 0
+2021/03/13-23:35:44.904680 7fb846714a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:35:44.904681 7fb846714a80 Options.compaction_readahead_size: 0
+2021/03/13-23:35:44.904681 7fb846714a80 Compression algorithms supported:
+2021/03/13-23:35:44.904682 7fb846714a80 Snappy supported: 1
+2021/03/13-23:35:44.904683 7fb846714a80 Zlib supported: 1
+2021/03/13-23:35:44.904684 7fb846714a80 Bzip supported: 1
+2021/03/13-23:35:44.904684 7fb846714a80 LZ4 supported: 1
+2021/03/13-23:35:44.904685 7fb846714a80 ZSTDNotFinal supported: 1
+2021/03/13-23:35:44.904689 7fb846714a80 ZSTD supported: 1
+2021/03/13-23:35:44.904693 7fb846714a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:35:44.904694 7fb846714a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:35:44.904795 7fb846714a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:35:44.904868 7fb846714a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:35:44.904869 7fb846714a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:35:44.904870 7fb846714a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:35:44.904871 7fb846714a80 Options.compaction_filter: None
+2021/03/13-23:35:44.904872 7fb846714a80 Options.compaction_filter_factory: None
+2021/03/13-23:35:44.904872 7fb846714a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:35:44.904873 7fb846714a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:35:44.904889 7fb846714a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10b8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x109dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:35:44.904890 7fb846714a80 Options.write_buffer_size: 134217728
+2021/03/13-23:35:44.904891 7fb846714a80 Options.max_write_buffer_number: 6
+2021/03/13-23:35:44.904892 7fb846714a80 Options.compression[0]: NoCompression
+2021/03/13-23:35:44.904893 7fb846714a80 Options.compression[1]: NoCompression
+2021/03/13-23:35:44.904893 7fb846714a80 Options.compression[2]: Snappy
+2021/03/13-23:35:44.904894 7fb846714a80 Options.compression[3]: Snappy
+2021/03/13-23:35:44.904895 7fb846714a80 Options.compression[4]: Snappy
+2021/03/13-23:35:44.904895 7fb846714a80 Options.compression[5]: Snappy
+2021/03/13-23:35:44.904896 7fb846714a80 Options.compression[6]: Snappy
+2021/03/13-23:35:44.904896 7fb846714a80 Options.bottommost_compression: Disabled
+2021/03/13-23:35:44.904897 7fb846714a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:35:44.904898 7fb846714a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:35:44.904899 7fb846714a80 Options.num_levels: 7
+2021/03/13-23:35:44.904899 7fb846714a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:35:44.904900 7fb846714a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:35:44.904900 7fb846714a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:35:44.904901 7fb846714a80 Options.compression_opts.level: -1
+2021/03/13-23:35:44.904902 7fb846714a80 Options.compression_opts.strategy: 0
+2021/03/13-23:35:44.904902 7fb846714a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:35:44.904903 7fb846714a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:35:44.904903 7fb846714a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:35:44.904904 7fb846714a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:35:44.904905 7fb846714a80 Options.target_file_size_base: 67108864
+2021/03/13-23:35:44.904905 7fb846714a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:35:44.904906 7fb846714a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:35:44.904907 7fb846714a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:35:44.904907 7fb846714a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:35:44.904909 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:35:44.904917 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:35:44.904918 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:35:44.904918 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:35:44.904919 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:35:44.904919 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:35:44.904920 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:35:44.904921 7fb846714a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:35:44.904921 7fb846714a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:35:44.904922 7fb846714a80 Options.arena_block_size: 16777216
+2021/03/13-23:35:44.904923 7fb846714a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:35:44.904923 7fb846714a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:35:44.904924 7fb846714a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:35:44.904924 7fb846714a80 Options.disable_auto_compactions: 0
+2021/03/13-23:35:44.904926 7fb846714a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:35:44.904927 7fb846714a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:35:44.904927 7fb846714a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:35:44.904928 7fb846714a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:35:44.904929 7fb846714a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:35:44.904929 7fb846714a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:35:44.904930 7fb846714a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:35:44.904931 7fb846714a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:35:44.904932 7fb846714a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:35:44.904932 7fb846714a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:35:44.904933 7fb846714a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:35:44.904933 7fb846714a80 Options.table_properties_collectors:
+2021/03/13-23:35:44.904934 7fb846714a80 Options.inplace_update_support: 0
+2021/03/13-23:35:44.904935 7fb846714a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:35:44.904935 7fb846714a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:35:44.904936 7fb846714a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:35:44.904937 7fb846714a80 Options.bloom_locality: 0
+2021/03/13-23:35:44.904937 7fb846714a80 Options.max_successive_merges: 0
+2021/03/13-23:35:44.904938 7fb846714a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:35:44.904939 7fb846714a80 Options.paranoid_file_checks: 0
+2021/03/13-23:35:44.904939 7fb846714a80 Options.force_consistency_checks: 0
+2021/03/13-23:35:44.904940 7fb846714a80 Options.report_bg_io_stats: 0
+2021/03/13-23:35:44.905390 7fb846714a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:35:44.905394 7fb846714a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:35:44.905483 7fb846714a80 EVENT_LOG_v1 {"time_micros": 1615674944905471, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:35:44.905489 7fb846714a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:35:45.602358 7fb846714a80 EVENT_LOG_v1 {"time_micros": 1615674945602354, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674946321397 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674946321397
new file mode 100644
index 0000000..2741059
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674946321397
@@ -0,0 +1,186 @@
+2021/03/13-23:35:45.615672 7fb846714a80 RocksDB version: 5.11.3
+2021/03/13-23:35:45.615731 7fb846714a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:35:45.615732 7fb846714a80 Compile date Mar 13 2021
+2021/03/13-23:35:45.615736 7fb846714a80 DB SUMMARY
+2021/03/13-23:35:45.615797 7fb846714a80 CURRENT file: CURRENT
+2021/03/13-23:35:45.615798 7fb846714a80 IDENTITY file: IDENTITY
+2021/03/13-23:35:45.615805 7fb846714a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:35:45.615806 7fb846714a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:35:45.615806 7fb846714a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:35:45.615810 7fb846714a80 Options.error_if_exists: 0
+2021/03/13-23:35:45.615811 7fb846714a80 Options.create_if_missing: 1
+2021/03/13-23:35:45.615811 7fb846714a80 Options.paranoid_checks: 1
+2021/03/13-23:35:45.615812 7fb846714a80 Options.env: 0x7fb8470ce080
+2021/03/13-23:35:45.615813 7fb846714a80 Options.info_log: 0x10c0ca0
+2021/03/13-23:35:45.615813 7fb846714a80 Options.max_file_opening_threads: 16
+2021/03/13-23:35:45.615814 7fb846714a80 Options.statistics: (nil)
+2021/03/13-23:35:45.615815 7fb846714a80 Options.use_fsync: 0
+2021/03/13-23:35:45.615815 7fb846714a80 Options.max_log_file_size: 0
+2021/03/13-23:35:45.615816 7fb846714a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:35:45.615816 7fb846714a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:35:45.615817 7fb846714a80 Options.keep_log_file_num: 1000
+2021/03/13-23:35:45.615817 7fb846714a80 Options.recycle_log_file_num: 0
+2021/03/13-23:35:45.615818 7fb846714a80 Options.allow_fallocate: 1
+2021/03/13-23:35:45.615819 7fb846714a80 Options.allow_mmap_reads: 0
+2021/03/13-23:35:45.615819 7fb846714a80 Options.allow_mmap_writes: 0
+2021/03/13-23:35:45.615820 7fb846714a80 Options.use_direct_reads: 0
+2021/03/13-23:35:45.615820 7fb846714a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:35:45.615821 7fb846714a80 Options.create_missing_column_families: 0
+2021/03/13-23:35:45.615821 7fb846714a80 Options.db_log_dir:
+2021/03/13-23:35:45.615822 7fb846714a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:35:45.615822 7fb846714a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:35:45.615823 7fb846714a80 Options.max_subcompactions: 1
+2021/03/13-23:35:45.615824 7fb846714a80 Options.max_background_flushes: -1
+2021/03/13-23:35:45.615824 7fb846714a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:35:45.615825 7fb846714a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:35:45.615825 7fb846714a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:35:45.615826 7fb846714a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:35:45.615826 7fb846714a80 Options.advise_random_on_open: 1
+2021/03/13-23:35:45.615827 7fb846714a80 Options.db_write_buffer_size: 0
+2021/03/13-23:35:45.615828 7fb846714a80 Options.write_buffer_manager: 0x10a8b90
+2021/03/13-23:35:45.615828 7fb846714a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:35:45.615829 7fb846714a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:35:45.615829 7fb846714a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:35:45.615830 7fb846714a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:35:45.615830 7fb846714a80 Options.rate_limiter: (nil)
+2021/03/13-23:35:45.615832 7fb846714a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:35:45.615839 7fb846714a80 Options.wal_recovery_mode: 2
+2021/03/13-23:35:45.615840 7fb846714a80 Options.enable_thread_tracking: 0
+2021/03/13-23:35:45.615841 7fb846714a80 Options.enable_pipelined_write: 0
+2021/03/13-23:35:45.615841 7fb846714a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:35:45.615842 7fb846714a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:35:45.615842 7fb846714a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:35:45.615843 7fb846714a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:35:45.615843 7fb846714a80 Options.row_cache: None
+2021/03/13-23:35:45.615844 7fb846714a80 Options.wal_filter: None
+2021/03/13-23:35:45.615845 7fb846714a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:35:45.615845 7fb846714a80 Options.allow_ingest_behind: 0
+2021/03/13-23:35:45.615846 7fb846714a80 Options.preserve_deletes: 0
+2021/03/13-23:35:45.615846 7fb846714a80 Options.two_write_queues: 0
+2021/03/13-23:35:45.615847 7fb846714a80 Options.manual_wal_flush: 0
+2021/03/13-23:35:45.615848 7fb846714a80 Options.max_background_jobs: 16
+2021/03/13-23:35:45.615848 7fb846714a80 Options.max_background_compactions: -1
+2021/03/13-23:35:45.615849 7fb846714a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:35:45.615850 7fb846714a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:35:45.615850 7fb846714a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:35:45.615851 7fb846714a80 Options.max_total_wal_size: 0
+2021/03/13-23:35:45.615851 7fb846714a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:35:45.615852 7fb846714a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:35:45.615853 7fb846714a80 Options.max_open_files: -1
+2021/03/13-23:35:45.615853 7fb846714a80 Options.bytes_per_sync: 0
+2021/03/13-23:35:45.615854 7fb846714a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:35:45.615854 7fb846714a80 Options.compaction_readahead_size: 0
+2021/03/13-23:35:45.615855 7fb846714a80 Compression algorithms supported:
+2021/03/13-23:35:45.615855 7fb846714a80 Snappy supported: 1
+2021/03/13-23:35:45.615856 7fb846714a80 Zlib supported: 1
+2021/03/13-23:35:45.615856 7fb846714a80 Bzip supported: 1
+2021/03/13-23:35:45.615857 7fb846714a80 LZ4 supported: 1
+2021/03/13-23:35:45.615858 7fb846714a80 ZSTDNotFinal supported: 1
+2021/03/13-23:35:45.615861 7fb846714a80 ZSTD supported: 1
+2021/03/13-23:35:45.615864 7fb846714a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:35:45.615866 7fb846714a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:35:45.615953 7fb846714a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:35:45.616006 7fb846714a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:35:45.616008 7fb846714a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:35:45.616008 7fb846714a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:35:45.616009 7fb846714a80 Options.compaction_filter: None
+2021/03/13-23:35:45.616010 7fb846714a80 Options.compaction_filter_factory: None
+2021/03/13-23:35:45.616010 7fb846714a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:35:45.616011 7fb846714a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:35:45.616026 7fb846714a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10b8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x109dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:35:45.616027 7fb846714a80 Options.write_buffer_size: 134217728
+2021/03/13-23:35:45.616028 7fb846714a80 Options.max_write_buffer_number: 6
+2021/03/13-23:35:45.616028 7fb846714a80 Options.compression[0]: NoCompression
+2021/03/13-23:35:45.616029 7fb846714a80 Options.compression[1]: NoCompression
+2021/03/13-23:35:45.616030 7fb846714a80 Options.compression[2]: Snappy
+2021/03/13-23:35:45.616030 7fb846714a80 Options.compression[3]: Snappy
+2021/03/13-23:35:45.616031 7fb846714a80 Options.compression[4]: Snappy
+2021/03/13-23:35:45.616031 7fb846714a80 Options.compression[5]: Snappy
+2021/03/13-23:35:45.616032 7fb846714a80 Options.compression[6]: Snappy
+2021/03/13-23:35:45.616033 7fb846714a80 Options.bottommost_compression: Disabled
+2021/03/13-23:35:45.616033 7fb846714a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:35:45.616034 7fb846714a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:35:45.616034 7fb846714a80 Options.num_levels: 7
+2021/03/13-23:35:45.616035 7fb846714a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:35:45.616035 7fb846714a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:35:45.616036 7fb846714a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:35:45.616037 7fb846714a80 Options.compression_opts.level: -1
+2021/03/13-23:35:45.616037 7fb846714a80 Options.compression_opts.strategy: 0
+2021/03/13-23:35:45.616038 7fb846714a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:35:45.616038 7fb846714a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:35:45.616039 7fb846714a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:35:45.616039 7fb846714a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:35:45.616040 7fb846714a80 Options.target_file_size_base: 67108864
+2021/03/13-23:35:45.616041 7fb846714a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:35:45.616041 7fb846714a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:35:45.616042 7fb846714a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:35:45.616042 7fb846714a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:35:45.616044 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:35:45.616051 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:35:45.616052 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:35:45.616053 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:35:45.616053 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:35:45.616054 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:35:45.616054 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:35:45.616055 7fb846714a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:35:45.616056 7fb846714a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:35:45.616056 7fb846714a80 Options.arena_block_size: 16777216
+2021/03/13-23:35:45.616057 7fb846714a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:35:45.616057 7fb846714a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:35:45.616058 7fb846714a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:35:45.616058 7fb846714a80 Options.disable_auto_compactions: 0
+2021/03/13-23:35:45.616060 7fb846714a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:35:45.616061 7fb846714a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:35:45.616061 7fb846714a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:35:45.616062 7fb846714a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:35:45.616062 7fb846714a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:35:45.616063 7fb846714a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:35:45.616064 7fb846714a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:35:45.616065 7fb846714a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:35:45.616065 7fb846714a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:35:45.616066 7fb846714a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:35:45.616066 7fb846714a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:35:45.616067 7fb846714a80 Options.table_properties_collectors:
+2021/03/13-23:35:45.616068 7fb846714a80 Options.inplace_update_support: 0
+2021/03/13-23:35:45.616068 7fb846714a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:35:45.616069 7fb846714a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:35:45.616069 7fb846714a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:35:45.616070 7fb846714a80 Options.bloom_locality: 0
+2021/03/13-23:35:45.616071 7fb846714a80 Options.max_successive_merges: 0
+2021/03/13-23:35:45.616071 7fb846714a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:35:45.616072 7fb846714a80 Options.paranoid_file_checks: 0
+2021/03/13-23:35:45.616072 7fb846714a80 Options.force_consistency_checks: 0
+2021/03/13-23:35:45.616073 7fb846714a80 Options.report_bg_io_stats: 0
+2021/03/13-23:35:45.616443 7fb846714a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:35:45.616445 7fb846714a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:35:45.616525 7fb846714a80 EVENT_LOG_v1 {"time_micros": 1615674945616515, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:35:45.616530 7fb846714a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:35:46.309844 7fb846714a80 EVENT_LOG_v1 {"time_micros": 1615674946309840, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615674947020009 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674947020009
new file mode 100644
index 0000000..860f406
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615674947020009
@@ -0,0 +1,186 @@
+2021/03/13-23:35:46.321718 7fb846714a80 RocksDB version: 5.11.3
+2021/03/13-23:35:46.321776 7fb846714a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:35:46.321777 7fb846714a80 Compile date Mar 13 2021
+2021/03/13-23:35:46.321782 7fb846714a80 DB SUMMARY
+2021/03/13-23:35:46.321844 7fb846714a80 CURRENT file: CURRENT
+2021/03/13-23:35:46.321845 7fb846714a80 IDENTITY file: IDENTITY
+2021/03/13-23:35:46.321851 7fb846714a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:35:46.321852 7fb846714a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:35:46.321853 7fb846714a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:35:46.321856 7fb846714a80 Options.error_if_exists: 0
+2021/03/13-23:35:46.321857 7fb846714a80 Options.create_if_missing: 1
+2021/03/13-23:35:46.321858 7fb846714a80 Options.paranoid_checks: 1
+2021/03/13-23:35:46.321858 7fb846714a80 Options.env: 0x7fb8470ce080
+2021/03/13-23:35:46.321859 7fb846714a80 Options.info_log: 0x10c0ca0
+2021/03/13-23:35:46.321860 7fb846714a80 Options.max_file_opening_threads: 16
+2021/03/13-23:35:46.321860 7fb846714a80 Options.statistics: (nil)
+2021/03/13-23:35:46.321861 7fb846714a80 Options.use_fsync: 0
+2021/03/13-23:35:46.321861 7fb846714a80 Options.max_log_file_size: 0
+2021/03/13-23:35:46.321862 7fb846714a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:35:46.321863 7fb846714a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:35:46.321863 7fb846714a80 Options.keep_log_file_num: 1000
+2021/03/13-23:35:46.321864 7fb846714a80 Options.recycle_log_file_num: 0
+2021/03/13-23:35:46.321864 7fb846714a80 Options.allow_fallocate: 1
+2021/03/13-23:35:46.321865 7fb846714a80 Options.allow_mmap_reads: 0
+2021/03/13-23:35:46.321865 7fb846714a80 Options.allow_mmap_writes: 0
+2021/03/13-23:35:46.321866 7fb846714a80 Options.use_direct_reads: 0
+2021/03/13-23:35:46.321867 7fb846714a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:35:46.321867 7fb846714a80 Options.create_missing_column_families: 0
+2021/03/13-23:35:46.321868 7fb846714a80 Options.db_log_dir:
+2021/03/13-23:35:46.321868 7fb846714a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:35:46.321869 7fb846714a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:35:46.321869 7fb846714a80 Options.max_subcompactions: 1
+2021/03/13-23:35:46.321870 7fb846714a80 Options.max_background_flushes: -1
+2021/03/13-23:35:46.321870 7fb846714a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:35:46.321871 7fb846714a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:35:46.321872 7fb846714a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:35:46.321872 7fb846714a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:35:46.321873 7fb846714a80 Options.advise_random_on_open: 1
+2021/03/13-23:35:46.321873 7fb846714a80 Options.db_write_buffer_size: 0
+2021/03/13-23:35:46.321874 7fb846714a80 Options.write_buffer_manager: 0x10a8b90
+2021/03/13-23:35:46.321874 7fb846714a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:35:46.321875 7fb846714a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:35:46.321875 7fb846714a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:35:46.321876 7fb846714a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:35:46.321877 7fb846714a80 Options.rate_limiter: (nil)
+2021/03/13-23:35:46.321878 7fb846714a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:35:46.321886 7fb846714a80 Options.wal_recovery_mode: 2
+2021/03/13-23:35:46.321886 7fb846714a80 Options.enable_thread_tracking: 0
+2021/03/13-23:35:46.321887 7fb846714a80 Options.enable_pipelined_write: 0
+2021/03/13-23:35:46.321887 7fb846714a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:35:46.321888 7fb846714a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:35:46.321889 7fb846714a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:35:46.321889 7fb846714a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:35:46.321890 7fb846714a80 Options.row_cache: None
+2021/03/13-23:35:46.321890 7fb846714a80 Options.wal_filter: None
+2021/03/13-23:35:46.321891 7fb846714a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:35:46.321891 7fb846714a80 Options.allow_ingest_behind: 0
+2021/03/13-23:35:46.321892 7fb846714a80 Options.preserve_deletes: 0
+2021/03/13-23:35:46.321892 7fb846714a80 Options.two_write_queues: 0
+2021/03/13-23:35:46.321893 7fb846714a80 Options.manual_wal_flush: 0
+2021/03/13-23:35:46.321894 7fb846714a80 Options.max_background_jobs: 16
+2021/03/13-23:35:46.321895 7fb846714a80 Options.max_background_compactions: -1
+2021/03/13-23:35:46.321895 7fb846714a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:35:46.321896 7fb846714a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:35:46.321896 7fb846714a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:35:46.321897 7fb846714a80 Options.max_total_wal_size: 0
+2021/03/13-23:35:46.321897 7fb846714a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:35:46.321898 7fb846714a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:35:46.321899 7fb846714a80 Options.max_open_files: -1
+2021/03/13-23:35:46.321899 7fb846714a80 Options.bytes_per_sync: 0
+2021/03/13-23:35:46.321900 7fb846714a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:35:46.321900 7fb846714a80 Options.compaction_readahead_size: 0
+2021/03/13-23:35:46.321901 7fb846714a80 Compression algorithms supported:
+2021/03/13-23:35:46.321901 7fb846714a80 Snappy supported: 1
+2021/03/13-23:35:46.321902 7fb846714a80 Zlib supported: 1
+2021/03/13-23:35:46.321903 7fb846714a80 Bzip supported: 1
+2021/03/13-23:35:46.321903 7fb846714a80 LZ4 supported: 1
+2021/03/13-23:35:46.321904 7fb846714a80 ZSTDNotFinal supported: 1
+2021/03/13-23:35:46.321908 7fb846714a80 ZSTD supported: 1
+2021/03/13-23:35:46.321911 7fb846714a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:35:46.321912 7fb846714a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:35:46.321999 7fb846714a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:35:46.322054 7fb846714a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:35:46.322056 7fb846714a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:35:46.322056 7fb846714a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:35:46.322057 7fb846714a80 Options.compaction_filter: None
+2021/03/13-23:35:46.322058 7fb846714a80 Options.compaction_filter_factory: None
+2021/03/13-23:35:46.322058 7fb846714a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:35:46.322059 7fb846714a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:35:46.322074 7fb846714a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10b8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x109dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:35:46.322075 7fb846714a80 Options.write_buffer_size: 134217728
+2021/03/13-23:35:46.322075 7fb846714a80 Options.max_write_buffer_number: 6
+2021/03/13-23:35:46.322076 7fb846714a80 Options.compression[0]: NoCompression
+2021/03/13-23:35:46.322077 7fb846714a80 Options.compression[1]: NoCompression
+2021/03/13-23:35:46.322077 7fb846714a80 Options.compression[2]: Snappy
+2021/03/13-23:35:46.322078 7fb846714a80 Options.compression[3]: Snappy
+2021/03/13-23:35:46.322078 7fb846714a80 Options.compression[4]: Snappy
+2021/03/13-23:35:46.322079 7fb846714a80 Options.compression[5]: Snappy
+2021/03/13-23:35:46.322079 7fb846714a80 Options.compression[6]: Snappy
+2021/03/13-23:35:46.322080 7fb846714a80 Options.bottommost_compression: Disabled
+2021/03/13-23:35:46.322081 7fb846714a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:35:46.322081 7fb846714a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:35:46.322082 7fb846714a80 Options.num_levels: 7
+2021/03/13-23:35:46.322083 7fb846714a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:35:46.322083 7fb846714a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:35:46.322084 7fb846714a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:35:46.322084 7fb846714a80 Options.compression_opts.level: -1
+2021/03/13-23:35:46.322085 7fb846714a80 Options.compression_opts.strategy: 0
+2021/03/13-23:35:46.322085 7fb846714a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:35:46.322086 7fb846714a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:35:46.322087 7fb846714a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:35:46.322087 7fb846714a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:35:46.322088 7fb846714a80 Options.target_file_size_base: 67108864
+2021/03/13-23:35:46.322088 7fb846714a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:35:46.322089 7fb846714a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:35:46.322089 7fb846714a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:35:46.322090 7fb846714a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:35:46.322092 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:35:46.322099 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:35:46.322100 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:35:46.322100 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:35:46.322101 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:35:46.322102 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:35:46.322102 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:35:46.322103 7fb846714a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:35:46.322103 7fb846714a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:35:46.322104 7fb846714a80 Options.arena_block_size: 16777216
+2021/03/13-23:35:46.322104 7fb846714a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:35:46.322105 7fb846714a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:35:46.322106 7fb846714a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:35:46.322106 7fb846714a80 Options.disable_auto_compactions: 0
+2021/03/13-23:35:46.322108 7fb846714a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:35:46.322108 7fb846714a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:35:46.322109 7fb846714a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:35:46.322110 7fb846714a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:35:46.322110 7fb846714a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:35:46.322111 7fb846714a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:35:46.322111 7fb846714a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:35:46.322112 7fb846714a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:35:46.322113 7fb846714a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:35:46.322113 7fb846714a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:35:46.322114 7fb846714a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:35:46.322114 7fb846714a80 Options.table_properties_collectors:
+2021/03/13-23:35:46.322115 7fb846714a80 Options.inplace_update_support: 0
+2021/03/13-23:35:46.322116 7fb846714a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:35:46.322116 7fb846714a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:35:46.322117 7fb846714a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:35:46.322118 7fb846714a80 Options.bloom_locality: 0
+2021/03/13-23:35:46.322118 7fb846714a80 Options.max_successive_merges: 0
+2021/03/13-23:35:46.322119 7fb846714a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:35:46.322119 7fb846714a80 Options.paranoid_file_checks: 0
+2021/03/13-23:35:46.322120 7fb846714a80 Options.force_consistency_checks: 0
+2021/03/13-23:35:46.322120 7fb846714a80 Options.report_bg_io_stats: 0
+2021/03/13-23:35:46.322515 7fb846714a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:35:46.322517 7fb846714a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:35:46.322596 7fb846714a80 EVENT_LOG_v1 {"time_micros": 1615674946322587, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:35:46.322602 7fb846714a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:35:47.007698 7fb846714a80 EVENT_LOG_v1 {"time_micros": 1615674947007695, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615675777284727 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615675777284727
new file mode 100644
index 0000000..b8f5d2e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615675777284727
@@ -0,0 +1,186 @@
+2021/03/13-23:35:47.020333 7fb846714a80 RocksDB version: 5.11.3
+2021/03/13-23:35:47.020394 7fb846714a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:35:47.020396 7fb846714a80 Compile date Mar 13 2021
+2021/03/13-23:35:47.020400 7fb846714a80 DB SUMMARY
+2021/03/13-23:35:47.020462 7fb846714a80 CURRENT file: CURRENT
+2021/03/13-23:35:47.020463 7fb846714a80 IDENTITY file: IDENTITY
+2021/03/13-23:35:47.020470 7fb846714a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:35:47.020471 7fb846714a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:35:47.020472 7fb846714a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:35:47.020475 7fb846714a80 Options.error_if_exists: 0
+2021/03/13-23:35:47.020476 7fb846714a80 Options.create_if_missing: 1
+2021/03/13-23:35:47.020477 7fb846714a80 Options.paranoid_checks: 1
+2021/03/13-23:35:47.020477 7fb846714a80 Options.env: 0x7fb8470ce080
+2021/03/13-23:35:47.020478 7fb846714a80 Options.info_log: 0x10c0ca0
+2021/03/13-23:35:47.020479 7fb846714a80 Options.max_file_opening_threads: 16
+2021/03/13-23:35:47.020479 7fb846714a80 Options.statistics: (nil)
+2021/03/13-23:35:47.020480 7fb846714a80 Options.use_fsync: 0
+2021/03/13-23:35:47.020481 7fb846714a80 Options.max_log_file_size: 0
+2021/03/13-23:35:47.020481 7fb846714a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:35:47.020482 7fb846714a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:35:47.020482 7fb846714a80 Options.keep_log_file_num: 1000
+2021/03/13-23:35:47.020483 7fb846714a80 Options.recycle_log_file_num: 0
+2021/03/13-23:35:47.020484 7fb846714a80 Options.allow_fallocate: 1
+2021/03/13-23:35:47.020484 7fb846714a80 Options.allow_mmap_reads: 0
+2021/03/13-23:35:47.020485 7fb846714a80 Options.allow_mmap_writes: 0
+2021/03/13-23:35:47.020485 7fb846714a80 Options.use_direct_reads: 0
+2021/03/13-23:35:47.020486 7fb846714a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:35:47.020486 7fb846714a80 Options.create_missing_column_families: 0
+2021/03/13-23:35:47.020487 7fb846714a80 Options.db_log_dir:
+2021/03/13-23:35:47.020487 7fb846714a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:35:47.020488 7fb846714a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:35:47.020489 7fb846714a80 Options.max_subcompactions: 1
+2021/03/13-23:35:47.020489 7fb846714a80 Options.max_background_flushes: -1
+2021/03/13-23:35:47.020490 7fb846714a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:35:47.020490 7fb846714a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:35:47.020491 7fb846714a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:35:47.020492 7fb846714a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:35:47.020492 7fb846714a80 Options.advise_random_on_open: 1
+2021/03/13-23:35:47.020493 7fb846714a80 Options.db_write_buffer_size: 0
+2021/03/13-23:35:47.020493 7fb846714a80 Options.write_buffer_manager: 0x10a8b90
+2021/03/13-23:35:47.020494 7fb846714a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:35:47.020494 7fb846714a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:35:47.020495 7fb846714a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:35:47.020495 7fb846714a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:35:47.020496 7fb846714a80 Options.rate_limiter: (nil)
+2021/03/13-23:35:47.020497 7fb846714a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:35:47.020505 7fb846714a80 Options.wal_recovery_mode: 2
+2021/03/13-23:35:47.020506 7fb846714a80 Options.enable_thread_tracking: 0
+2021/03/13-23:35:47.020506 7fb846714a80 Options.enable_pipelined_write: 0
+2021/03/13-23:35:47.020507 7fb846714a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:35:47.020507 7fb846714a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:35:47.020508 7fb846714a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:35:47.020508 7fb846714a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:35:47.020509 7fb846714a80 Options.row_cache: None
+2021/03/13-23:35:47.020510 7fb846714a80 Options.wal_filter: None
+2021/03/13-23:35:47.020510 7fb846714a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:35:47.020511 7fb846714a80 Options.allow_ingest_behind: 0
+2021/03/13-23:35:47.020511 7fb846714a80 Options.preserve_deletes: 0
+2021/03/13-23:35:47.020512 7fb846714a80 Options.two_write_queues: 0
+2021/03/13-23:35:47.020512 7fb846714a80 Options.manual_wal_flush: 0
+2021/03/13-23:35:47.020514 7fb846714a80 Options.max_background_jobs: 16
+2021/03/13-23:35:47.020514 7fb846714a80 Options.max_background_compactions: -1
+2021/03/13-23:35:47.020515 7fb846714a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:35:47.020515 7fb846714a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:35:47.020516 7fb846714a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:35:47.020516 7fb846714a80 Options.max_total_wal_size: 0
+2021/03/13-23:35:47.020517 7fb846714a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:35:47.020518 7fb846714a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:35:47.020518 7fb846714a80 Options.max_open_files: -1
+2021/03/13-23:35:47.020519 7fb846714a80 Options.bytes_per_sync: 0
+2021/03/13-23:35:47.020519 7fb846714a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:35:47.020520 7fb846714a80 Options.compaction_readahead_size: 0
+2021/03/13-23:35:47.020520 7fb846714a80 Compression algorithms supported:
+2021/03/13-23:35:47.020521 7fb846714a80 Snappy supported: 1
+2021/03/13-23:35:47.020521 7fb846714a80 Zlib supported: 1
+2021/03/13-23:35:47.020522 7fb846714a80 Bzip supported: 1
+2021/03/13-23:35:47.020523 7fb846714a80 LZ4 supported: 1
+2021/03/13-23:35:47.020523 7fb846714a80 ZSTDNotFinal supported: 1
+2021/03/13-23:35:47.020527 7fb846714a80 ZSTD supported: 1
+2021/03/13-23:35:47.020530 7fb846714a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:35:47.020531 7fb846714a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:35:47.020618 7fb846714a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:35:47.020671 7fb846714a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:35:47.020673 7fb846714a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:35:47.020674 7fb846714a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:35:47.020675 7fb846714a80 Options.compaction_filter: None
+2021/03/13-23:35:47.020675 7fb846714a80 Options.compaction_filter_factory: None
+2021/03/13-23:35:47.020676 7fb846714a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:35:47.020677 7fb846714a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:35:47.020692 7fb846714a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10b8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x109dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:35:47.020693 7fb846714a80 Options.write_buffer_size: 134217728
+2021/03/13-23:35:47.020694 7fb846714a80 Options.max_write_buffer_number: 6
+2021/03/13-23:35:47.020694 7fb846714a80 Options.compression[0]: NoCompression
+2021/03/13-23:35:47.020695 7fb846714a80 Options.compression[1]: NoCompression
+2021/03/13-23:35:47.020696 7fb846714a80 Options.compression[2]: Snappy
+2021/03/13-23:35:47.020696 7fb846714a80 Options.compression[3]: Snappy
+2021/03/13-23:35:47.020697 7fb846714a80 Options.compression[4]: Snappy
+2021/03/13-23:35:47.020697 7fb846714a80 Options.compression[5]: Snappy
+2021/03/13-23:35:47.020698 7fb846714a80 Options.compression[6]: Snappy
+2021/03/13-23:35:47.020699 7fb846714a80 Options.bottommost_compression: Disabled
+2021/03/13-23:35:47.020699 7fb846714a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:35:47.020700 7fb846714a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:35:47.020701 7fb846714a80 Options.num_levels: 7
+2021/03/13-23:35:47.020701 7fb846714a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:35:47.020702 7fb846714a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:35:47.020702 7fb846714a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:35:47.020703 7fb846714a80 Options.compression_opts.level: -1
+2021/03/13-23:35:47.020704 7fb846714a80 Options.compression_opts.strategy: 0
+2021/03/13-23:35:47.020704 7fb846714a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:35:47.020705 7fb846714a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:35:47.020705 7fb846714a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:35:47.020706 7fb846714a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:35:47.020707 7fb846714a80 Options.target_file_size_base: 67108864
+2021/03/13-23:35:47.020707 7fb846714a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:35:47.020708 7fb846714a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:35:47.020708 7fb846714a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:35:47.020709 7fb846714a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:35:47.020710 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:35:47.020718 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:35:47.020719 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:35:47.020719 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:35:47.020720 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:35:47.020720 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:35:47.020721 7fb846714a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:35:47.020722 7fb846714a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:35:47.020722 7fb846714a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:35:47.020723 7fb846714a80 Options.arena_block_size: 16777216
+2021/03/13-23:35:47.020723 7fb846714a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:35:47.020724 7fb846714a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:35:47.020725 7fb846714a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:35:47.020725 7fb846714a80 Options.disable_auto_compactions: 0
+2021/03/13-23:35:47.020727 7fb846714a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:35:47.020728 7fb846714a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:35:47.020728 7fb846714a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:35:47.020729 7fb846714a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:35:47.020729 7fb846714a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:35:47.020730 7fb846714a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:35:47.020731 7fb846714a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:35:47.020732 7fb846714a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:35:47.020732 7fb846714a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:35:47.020733 7fb846714a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:35:47.020733 7fb846714a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:35:47.020734 7fb846714a80 Options.table_properties_collectors:
+2021/03/13-23:35:47.020735 7fb846714a80 Options.inplace_update_support: 0
+2021/03/13-23:35:47.020735 7fb846714a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:35:47.020736 7fb846714a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:35:47.020737 7fb846714a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:35:47.020737 7fb846714a80 Options.bloom_locality: 0
+2021/03/13-23:35:47.020738 7fb846714a80 Options.max_successive_merges: 0
+2021/03/13-23:35:47.020739 7fb846714a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:35:47.020739 7fb846714a80 Options.paranoid_file_checks: 0
+2021/03/13-23:35:47.020740 7fb846714a80 Options.force_consistency_checks: 0
+2021/03/13-23:35:47.020740 7fb846714a80 Options.report_bg_io_stats: 0
+2021/03/13-23:35:47.021104 7fb846714a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:35:47.021106 7fb846714a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:35:47.021198 7fb846714a80 EVENT_LOG_v1 {"time_micros": 1615674947021187, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:35:47.021204 7fb846714a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:35:47.697902 7fb846714a80 EVENT_LOG_v1 {"time_micros": 1615674947697899, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615675777976868 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615675777976868
new file mode 100644
index 0000000..fc23fe1
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615675777976868
@@ -0,0 +1,186 @@
+2021/03/13-23:49:37.285071 7f5ac1dbda80 RocksDB version: 5.11.3
+2021/03/13-23:49:37.285134 7f5ac1dbda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:49:37.285136 7f5ac1dbda80 Compile date Mar 13 2021
+2021/03/13-23:49:37.285139 7f5ac1dbda80 DB SUMMARY
+2021/03/13-23:49:37.285210 7f5ac1dbda80 CURRENT file: CURRENT
+2021/03/13-23:49:37.285211 7f5ac1dbda80 IDENTITY file: IDENTITY
+2021/03/13-23:49:37.285218 7f5ac1dbda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:49:37.285219 7f5ac1dbda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:49:37.285220 7f5ac1dbda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:49:37.285224 7f5ac1dbda80 Options.error_if_exists: 0
+2021/03/13-23:49:37.285225 7f5ac1dbda80 Options.create_if_missing: 1
+2021/03/13-23:49:37.285226 7f5ac1dbda80 Options.paranoid_checks: 1
+2021/03/13-23:49:37.285226 7f5ac1dbda80 Options.env: 0x7f5ac2777080
+2021/03/13-23:49:37.285227 7f5ac1dbda80 Options.info_log: 0x20eaca0
+2021/03/13-23:49:37.285228 7f5ac1dbda80 Options.max_file_opening_threads: 16
+2021/03/13-23:49:37.285228 7f5ac1dbda80 Options.statistics: (nil)
+2021/03/13-23:49:37.285229 7f5ac1dbda80 Options.use_fsync: 0
+2021/03/13-23:49:37.285230 7f5ac1dbda80 Options.max_log_file_size: 0
+2021/03/13-23:49:37.285231 7f5ac1dbda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:49:37.285231 7f5ac1dbda80 Options.log_file_time_to_roll: 0
+2021/03/13-23:49:37.285232 7f5ac1dbda80 Options.keep_log_file_num: 1000
+2021/03/13-23:49:37.285233 7f5ac1dbda80 Options.recycle_log_file_num: 0
+2021/03/13-23:49:37.285233 7f5ac1dbda80 Options.allow_fallocate: 1
+2021/03/13-23:49:37.285234 7f5ac1dbda80 Options.allow_mmap_reads: 0
+2021/03/13-23:49:37.285235 7f5ac1dbda80 Options.allow_mmap_writes: 0
+2021/03/13-23:49:37.285235 7f5ac1dbda80 Options.use_direct_reads: 0
+2021/03/13-23:49:37.285236 7f5ac1dbda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:49:37.285236 7f5ac1dbda80 Options.create_missing_column_families: 0
+2021/03/13-23:49:37.285237 7f5ac1dbda80 Options.db_log_dir:
+2021/03/13-23:49:37.285244 7f5ac1dbda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:49:37.285245 7f5ac1dbda80 Options.table_cache_numshardbits: 6
+2021/03/13-23:49:37.285246 7f5ac1dbda80 Options.max_subcompactions: 1
+2021/03/13-23:49:37.285246 7f5ac1dbda80 Options.max_background_flushes: -1
+2021/03/13-23:49:37.285247 7f5ac1dbda80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:49:37.285248 7f5ac1dbda80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:49:37.285249 7f5ac1dbda80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:49:37.285251 7f5ac1dbda80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:49:37.285252 7f5ac1dbda80 Options.advise_random_on_open: 1
+2021/03/13-23:49:37.285252 7f5ac1dbda80 Options.db_write_buffer_size: 0
+2021/03/13-23:49:37.285253 7f5ac1dbda80 Options.write_buffer_manager: 0x20d2b90
+2021/03/13-23:49:37.285254 7f5ac1dbda80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:49:37.285254 7f5ac1dbda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:49:37.285255 7f5ac1dbda80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:49:37.285256 7f5ac1dbda80 Options.use_adaptive_mutex: 0
+2021/03/13-23:49:37.285256 7f5ac1dbda80 Options.rate_limiter: (nil)
+2021/03/13-23:49:37.285258 7f5ac1dbda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:49:37.285267 7f5ac1dbda80 Options.wal_recovery_mode: 2
+2021/03/13-23:49:37.285268 7f5ac1dbda80 Options.enable_thread_tracking: 0
+2021/03/13-23:49:37.285269 7f5ac1dbda80 Options.enable_pipelined_write: 0
+2021/03/13-23:49:37.285269 7f5ac1dbda80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:49:37.285270 7f5ac1dbda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:49:37.285270 7f5ac1dbda80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:49:37.285271 7f5ac1dbda80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:49:37.285272 7f5ac1dbda80 Options.row_cache: None
+2021/03/13-23:49:37.285272 7f5ac1dbda80 Options.wal_filter: None
+2021/03/13-23:49:37.285273 7f5ac1dbda80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:49:37.285274 7f5ac1dbda80 Options.allow_ingest_behind: 0
+2021/03/13-23:49:37.285274 7f5ac1dbda80 Options.preserve_deletes: 0
+2021/03/13-23:49:37.285275 7f5ac1dbda80 Options.two_write_queues: 0
+2021/03/13-23:49:37.285275 7f5ac1dbda80 Options.manual_wal_flush: 0
+2021/03/13-23:49:37.285277 7f5ac1dbda80 Options.max_background_jobs: 16
+2021/03/13-23:49:37.285277 7f5ac1dbda80 Options.max_background_compactions: -1
+2021/03/13-23:49:37.285278 7f5ac1dbda80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:49:37.285278 7f5ac1dbda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:49:37.285279 7f5ac1dbda80 Options.delayed_write_rate : 16777216
+2021/03/13-23:49:37.285280 7f5ac1dbda80 Options.max_total_wal_size: 0
+2021/03/13-23:49:37.285280 7f5ac1dbda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:49:37.285281 7f5ac1dbda80 Options.stats_dump_period_sec: 600
+2021/03/13-23:49:37.285282 7f5ac1dbda80 Options.max_open_files: -1
+2021/03/13-23:49:37.285282 7f5ac1dbda80 Options.bytes_per_sync: 0
+2021/03/13-23:49:37.285283 7f5ac1dbda80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:49:37.285284 7f5ac1dbda80 Options.compaction_readahead_size: 0
+2021/03/13-23:49:37.285284 7f5ac1dbda80 Compression algorithms supported:
+2021/03/13-23:49:37.285285 7f5ac1dbda80 Snappy supported: 1
+2021/03/13-23:49:37.285286 7f5ac1dbda80 Zlib supported: 1
+2021/03/13-23:49:37.285286 7f5ac1dbda80 Bzip supported: 1
+2021/03/13-23:49:37.285287 7f5ac1dbda80 LZ4 supported: 1
+2021/03/13-23:49:37.285287 7f5ac1dbda80 ZSTDNotFinal supported: 1
+2021/03/13-23:49:37.285292 7f5ac1dbda80 ZSTD supported: 1
+2021/03/13-23:49:37.285296 7f5ac1dbda80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:49:37.285297 7f5ac1dbda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:49:37.285422 7f5ac1dbda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:49:37.285486 7f5ac1dbda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:49:37.285488 7f5ac1dbda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:49:37.285489 7f5ac1dbda80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:49:37.285489 7f5ac1dbda80 Options.compaction_filter: None
+2021/03/13-23:49:37.285490 7f5ac1dbda80 Options.compaction_filter_factory: None
+2021/03/13-23:49:37.285491 7f5ac1dbda80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:49:37.285492 7f5ac1dbda80 Options.table_factory: BlockBasedTable
+2021/03/13-23:49:37.285506 7f5ac1dbda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x20e2520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20c7c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:49:37.285507 7f5ac1dbda80 Options.write_buffer_size: 134217728
+2021/03/13-23:49:37.285508 7f5ac1dbda80 Options.max_write_buffer_number: 6
+2021/03/13-23:49:37.285509 7f5ac1dbda80 Options.compression[0]: NoCompression
+2021/03/13-23:49:37.285509 7f5ac1dbda80 Options.compression[1]: NoCompression
+2021/03/13-23:49:37.285510 7f5ac1dbda80 Options.compression[2]: Snappy
+2021/03/13-23:49:37.285511 7f5ac1dbda80 Options.compression[3]: Snappy
+2021/03/13-23:49:37.285511 7f5ac1dbda80 Options.compression[4]: Snappy
+2021/03/13-23:49:37.285512 7f5ac1dbda80 Options.compression[5]: Snappy
+2021/03/13-23:49:37.285513 7f5ac1dbda80 Options.compression[6]: Snappy
+2021/03/13-23:49:37.285513 7f5ac1dbda80 Options.bottommost_compression: Disabled
+2021/03/13-23:49:37.285514 7f5ac1dbda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:49:37.285515 7f5ac1dbda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:49:37.285515 7f5ac1dbda80 Options.num_levels: 7
+2021/03/13-23:49:37.285516 7f5ac1dbda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:49:37.285517 7f5ac1dbda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:49:37.285517 7f5ac1dbda80 Options.compression_opts.window_bits: -14
+2021/03/13-23:49:37.285518 7f5ac1dbda80 Options.compression_opts.level: -1
+2021/03/13-23:49:37.285518 7f5ac1dbda80 Options.compression_opts.strategy: 0
+2021/03/13-23:49:37.285519 7f5ac1dbda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:49:37.285520 7f5ac1dbda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:49:37.285520 7f5ac1dbda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:49:37.285521 7f5ac1dbda80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:49:37.285522 7f5ac1dbda80 Options.target_file_size_base: 67108864
+2021/03/13-23:49:37.285522 7f5ac1dbda80 Options.target_file_size_multiplier: 1
+2021/03/13-23:49:37.285523 7f5ac1dbda80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:49:37.285523 7f5ac1dbda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:49:37.285524 7f5ac1dbda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:49:37.285526 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:49:37.285534 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:49:37.285535 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:49:37.285535 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:49:37.285536 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:49:37.285537 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:49:37.285537 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:49:37.285538 7f5ac1dbda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:49:37.285538 7f5ac1dbda80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:49:37.285539 7f5ac1dbda80 Options.arena_block_size: 16777216
+2021/03/13-23:49:37.285540 7f5ac1dbda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:49:37.285540 7f5ac1dbda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:49:37.285541 7f5ac1dbda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:49:37.285542 7f5ac1dbda80 Options.disable_auto_compactions: 0
+2021/03/13-23:49:37.285543 7f5ac1dbda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:49:37.285544 7f5ac1dbda80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:49:37.285544 7f5ac1dbda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:49:37.285545 7f5ac1dbda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:49:37.285546 7f5ac1dbda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:49:37.285546 7f5ac1dbda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:49:37.285547 7f5ac1dbda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:49:37.285548 7f5ac1dbda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:49:37.285548 7f5ac1dbda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:49:37.285549 7f5ac1dbda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:49:37.285550 7f5ac1dbda80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:49:37.285550 7f5ac1dbda80 Options.table_properties_collectors:
+2021/03/13-23:49:37.285551 7f5ac1dbda80 Options.inplace_update_support: 0
+2021/03/13-23:49:37.285552 7f5ac1dbda80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:49:37.285552 7f5ac1dbda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:49:37.285553 7f5ac1dbda80 Options.memtable_huge_page_size: 0
+2021/03/13-23:49:37.285554 7f5ac1dbda80 Options.bloom_locality: 0
+2021/03/13-23:49:37.285554 7f5ac1dbda80 Options.max_successive_merges: 0
+2021/03/13-23:49:37.285555 7f5ac1dbda80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:49:37.285556 7f5ac1dbda80 Options.paranoid_file_checks: 0
+2021/03/13-23:49:37.285556 7f5ac1dbda80 Options.force_consistency_checks: 0
+2021/03/13-23:49:37.285557 7f5ac1dbda80 Options.report_bg_io_stats: 0
+2021/03/13-23:49:37.286080 7f5ac1dbda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:49:37.286084 7f5ac1dbda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:49:37.286262 7f5ac1dbda80 EVENT_LOG_v1 {"time_micros": 1615675777286236, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:49:37.286273 7f5ac1dbda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:49:37.965020 7f5ac1dbda80 EVENT_LOG_v1 {"time_micros": 1615675777965017, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615675778658216 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615675778658216
new file mode 100644
index 0000000..28e09c4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615675778658216
@@ -0,0 +1,186 @@
+2021/03/13-23:49:37.977181 7f5ac1dbda80 RocksDB version: 5.11.3
+2021/03/13-23:49:37.977244 7f5ac1dbda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:49:37.977247 7f5ac1dbda80 Compile date Mar 13 2021
+2021/03/13-23:49:37.977249 7f5ac1dbda80 DB SUMMARY
+2021/03/13-23:49:37.977314 7f5ac1dbda80 CURRENT file: CURRENT
+2021/03/13-23:49:37.977315 7f5ac1dbda80 IDENTITY file: IDENTITY
+2021/03/13-23:49:37.977321 7f5ac1dbda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:49:37.977322 7f5ac1dbda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:49:37.977323 7f5ac1dbda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:49:37.977326 7f5ac1dbda80 Options.error_if_exists: 0
+2021/03/13-23:49:37.977327 7f5ac1dbda80 Options.create_if_missing: 1
+2021/03/13-23:49:37.977328 7f5ac1dbda80 Options.paranoid_checks: 1
+2021/03/13-23:49:37.977328 7f5ac1dbda80 Options.env: 0x7f5ac2777080
+2021/03/13-23:49:37.977329 7f5ac1dbda80 Options.info_log: 0x20eaca0
+2021/03/13-23:49:37.977330 7f5ac1dbda80 Options.max_file_opening_threads: 16
+2021/03/13-23:49:37.977330 7f5ac1dbda80 Options.statistics: (nil)
+2021/03/13-23:49:37.977331 7f5ac1dbda80 Options.use_fsync: 0
+2021/03/13-23:49:37.977331 7f5ac1dbda80 Options.max_log_file_size: 0
+2021/03/13-23:49:37.977332 7f5ac1dbda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:49:37.977333 7f5ac1dbda80 Options.log_file_time_to_roll: 0
+2021/03/13-23:49:37.977333 7f5ac1dbda80 Options.keep_log_file_num: 1000
+2021/03/13-23:49:37.977334 7f5ac1dbda80 Options.recycle_log_file_num: 0
+2021/03/13-23:49:37.977335 7f5ac1dbda80 Options.allow_fallocate: 1
+2021/03/13-23:49:37.977335 7f5ac1dbda80 Options.allow_mmap_reads: 0
+2021/03/13-23:49:37.977336 7f5ac1dbda80 Options.allow_mmap_writes: 0
+2021/03/13-23:49:37.977336 7f5ac1dbda80 Options.use_direct_reads: 0
+2021/03/13-23:49:37.977337 7f5ac1dbda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:49:37.977337 7f5ac1dbda80 Options.create_missing_column_families: 0
+2021/03/13-23:49:37.977338 7f5ac1dbda80 Options.db_log_dir:
+2021/03/13-23:49:37.977338 7f5ac1dbda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:49:37.977339 7f5ac1dbda80 Options.table_cache_numshardbits: 6
+2021/03/13-23:49:37.977339 7f5ac1dbda80 Options.max_subcompactions: 1
+2021/03/13-23:49:37.977340 7f5ac1dbda80 Options.max_background_flushes: -1
+2021/03/13-23:49:37.977341 7f5ac1dbda80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:49:37.977341 7f5ac1dbda80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:49:37.977342 7f5ac1dbda80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:49:37.977342 7f5ac1dbda80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:49:37.977343 7f5ac1dbda80 Options.advise_random_on_open: 1
+2021/03/13-23:49:37.977343 7f5ac1dbda80 Options.db_write_buffer_size: 0
+2021/03/13-23:49:37.977344 7f5ac1dbda80 Options.write_buffer_manager: 0x20d2b90
+2021/03/13-23:49:37.977345 7f5ac1dbda80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:49:37.977345 7f5ac1dbda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:49:37.977346 7f5ac1dbda80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:49:37.977346 7f5ac1dbda80 Options.use_adaptive_mutex: 0
+2021/03/13-23:49:37.977347 7f5ac1dbda80 Options.rate_limiter: (nil)
+2021/03/13-23:49:37.977348 7f5ac1dbda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:49:37.977356 7f5ac1dbda80 Options.wal_recovery_mode: 2
+2021/03/13-23:49:37.977357 7f5ac1dbda80 Options.enable_thread_tracking: 0
+2021/03/13-23:49:37.977358 7f5ac1dbda80 Options.enable_pipelined_write: 0
+2021/03/13-23:49:37.977358 7f5ac1dbda80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:49:37.977359 7f5ac1dbda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:49:37.977359 7f5ac1dbda80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:49:37.977360 7f5ac1dbda80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:49:37.977360 7f5ac1dbda80 Options.row_cache: None
+2021/03/13-23:49:37.977361 7f5ac1dbda80 Options.wal_filter: None
+2021/03/13-23:49:37.977362 7f5ac1dbda80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:49:37.977362 7f5ac1dbda80 Options.allow_ingest_behind: 0
+2021/03/13-23:49:37.977363 7f5ac1dbda80 Options.preserve_deletes: 0
+2021/03/13-23:49:37.977363 7f5ac1dbda80 Options.two_write_queues: 0
+2021/03/13-23:49:37.977364 7f5ac1dbda80 Options.manual_wal_flush: 0
+2021/03/13-23:49:37.977365 7f5ac1dbda80 Options.max_background_jobs: 16
+2021/03/13-23:49:37.977365 7f5ac1dbda80 Options.max_background_compactions: -1
+2021/03/13-23:49:37.977366 7f5ac1dbda80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:49:37.977367 7f5ac1dbda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:49:37.977367 7f5ac1dbda80 Options.delayed_write_rate : 16777216
+2021/03/13-23:49:37.977368 7f5ac1dbda80 Options.max_total_wal_size: 0
+2021/03/13-23:49:37.977368 7f5ac1dbda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:49:37.977369 7f5ac1dbda80 Options.stats_dump_period_sec: 600
+2021/03/13-23:49:37.977369 7f5ac1dbda80 Options.max_open_files: -1
+2021/03/13-23:49:37.977370 7f5ac1dbda80 Options.bytes_per_sync: 0
+2021/03/13-23:49:37.977370 7f5ac1dbda80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:49:37.977371 7f5ac1dbda80 Options.compaction_readahead_size: 0
+2021/03/13-23:49:37.977372 7f5ac1dbda80 Compression algorithms supported:
+2021/03/13-23:49:37.977372 7f5ac1dbda80 Snappy supported: 1
+2021/03/13-23:49:37.977373 7f5ac1dbda80 Zlib supported: 1
+2021/03/13-23:49:37.977373 7f5ac1dbda80 Bzip supported: 1
+2021/03/13-23:49:37.977374 7f5ac1dbda80 LZ4 supported: 1
+2021/03/13-23:49:37.977374 7f5ac1dbda80 ZSTDNotFinal supported: 1
+2021/03/13-23:49:37.977378 7f5ac1dbda80 ZSTD supported: 1
+2021/03/13-23:49:37.977381 7f5ac1dbda80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:49:37.977383 7f5ac1dbda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:49:37.977477 7f5ac1dbda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:49:37.977532 7f5ac1dbda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:49:37.977534 7f5ac1dbda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:49:37.977534 7f5ac1dbda80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:49:37.977535 7f5ac1dbda80 Options.compaction_filter: None
+2021/03/13-23:49:37.977536 7f5ac1dbda80 Options.compaction_filter_factory: None
+2021/03/13-23:49:37.977536 7f5ac1dbda80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:49:37.977537 7f5ac1dbda80 Options.table_factory: BlockBasedTable
+2021/03/13-23:49:37.977550 7f5ac1dbda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x20e2520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20c7c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:49:37.977551 7f5ac1dbda80 Options.write_buffer_size: 134217728
+2021/03/13-23:49:37.977552 7f5ac1dbda80 Options.max_write_buffer_number: 6
+2021/03/13-23:49:37.977552 7f5ac1dbda80 Options.compression[0]: NoCompression
+2021/03/13-23:49:37.977553 7f5ac1dbda80 Options.compression[1]: NoCompression
+2021/03/13-23:49:37.977554 7f5ac1dbda80 Options.compression[2]: Snappy
+2021/03/13-23:49:37.977554 7f5ac1dbda80 Options.compression[3]: Snappy
+2021/03/13-23:49:37.977555 7f5ac1dbda80 Options.compression[4]: Snappy
+2021/03/13-23:49:37.977555 7f5ac1dbda80 Options.compression[5]: Snappy
+2021/03/13-23:49:37.977556 7f5ac1dbda80 Options.compression[6]: Snappy
+2021/03/13-23:49:37.977556 7f5ac1dbda80 Options.bottommost_compression: Disabled
+2021/03/13-23:49:37.977557 7f5ac1dbda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:49:37.977558 7f5ac1dbda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:49:37.977558 7f5ac1dbda80 Options.num_levels: 7
+2021/03/13-23:49:37.977559 7f5ac1dbda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:49:37.977559 7f5ac1dbda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:49:37.977560 7f5ac1dbda80 Options.compression_opts.window_bits: -14
+2021/03/13-23:49:37.977560 7f5ac1dbda80 Options.compression_opts.level: -1
+2021/03/13-23:49:37.977561 7f5ac1dbda80 Options.compression_opts.strategy: 0
+2021/03/13-23:49:37.977562 7f5ac1dbda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:49:37.977562 7f5ac1dbda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:49:37.977563 7f5ac1dbda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:49:37.977563 7f5ac1dbda80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:49:37.977564 7f5ac1dbda80 Options.target_file_size_base: 67108864
+2021/03/13-23:49:37.977564 7f5ac1dbda80 Options.target_file_size_multiplier: 1
+2021/03/13-23:49:37.977565 7f5ac1dbda80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:49:37.977566 7f5ac1dbda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:49:37.977566 7f5ac1dbda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:49:37.977568 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:49:37.977576 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:49:37.977576 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:49:37.977577 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:49:37.977578 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:49:37.977578 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:49:37.977579 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:49:37.977579 7f5ac1dbda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:49:37.977580 7f5ac1dbda80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:49:37.977580 7f5ac1dbda80 Options.arena_block_size: 16777216
+2021/03/13-23:49:37.977581 7f5ac1dbda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:49:37.977581 7f5ac1dbda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:49:37.977582 7f5ac1dbda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:49:37.977583 7f5ac1dbda80 Options.disable_auto_compactions: 0
+2021/03/13-23:49:37.977584 7f5ac1dbda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:49:37.977585 7f5ac1dbda80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:49:37.977585 7f5ac1dbda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:49:37.977586 7f5ac1dbda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:49:37.977587 7f5ac1dbda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:49:37.977587 7f5ac1dbda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:49:37.977588 7f5ac1dbda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:49:37.977589 7f5ac1dbda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:49:37.977589 7f5ac1dbda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:49:37.977590 7f5ac1dbda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:49:37.977590 7f5ac1dbda80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:49:37.977591 7f5ac1dbda80 Options.table_properties_collectors:
+2021/03/13-23:49:37.977591 7f5ac1dbda80 Options.inplace_update_support: 0
+2021/03/13-23:49:37.977592 7f5ac1dbda80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:49:37.977593 7f5ac1dbda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:49:37.977593 7f5ac1dbda80 Options.memtable_huge_page_size: 0
+2021/03/13-23:49:37.977594 7f5ac1dbda80 Options.bloom_locality: 0
+2021/03/13-23:49:37.977594 7f5ac1dbda80 Options.max_successive_merges: 0
+2021/03/13-23:49:37.977595 7f5ac1dbda80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:49:37.977596 7f5ac1dbda80 Options.paranoid_file_checks: 0
+2021/03/13-23:49:37.977596 7f5ac1dbda80 Options.force_consistency_checks: 0
+2021/03/13-23:49:37.977597 7f5ac1dbda80 Options.report_bg_io_stats: 0
+2021/03/13-23:49:37.978002 7f5ac1dbda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:49:37.978005 7f5ac1dbda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:49:37.978090 7f5ac1dbda80 EVENT_LOG_v1 {"time_micros": 1615675777978080, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:49:37.978096 7f5ac1dbda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:49:38.646451 7f5ac1dbda80 EVENT_LOG_v1 {"time_micros": 1615675778646448, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615675779339063 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615675779339063
new file mode 100644
index 0000000..de74c34
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615675779339063
@@ -0,0 +1,186 @@
+2021/03/13-23:49:38.658541 7f5ac1dbda80 RocksDB version: 5.11.3
+2021/03/13-23:49:38.658596 7f5ac1dbda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:49:38.658598 7f5ac1dbda80 Compile date Mar 13 2021
+2021/03/13-23:49:38.658600 7f5ac1dbda80 DB SUMMARY
+2021/03/13-23:49:38.658663 7f5ac1dbda80 CURRENT file: CURRENT
+2021/03/13-23:49:38.658664 7f5ac1dbda80 IDENTITY file: IDENTITY
+2021/03/13-23:49:38.658670 7f5ac1dbda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:49:38.658671 7f5ac1dbda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:49:38.658672 7f5ac1dbda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:49:38.658676 7f5ac1dbda80 Options.error_if_exists: 0
+2021/03/13-23:49:38.658677 7f5ac1dbda80 Options.create_if_missing: 1
+2021/03/13-23:49:38.658677 7f5ac1dbda80 Options.paranoid_checks: 1
+2021/03/13-23:49:38.658678 7f5ac1dbda80 Options.env: 0x7f5ac2777080
+2021/03/13-23:49:38.658678 7f5ac1dbda80 Options.info_log: 0x20eaca0
+2021/03/13-23:49:38.658679 7f5ac1dbda80 Options.max_file_opening_threads: 16
+2021/03/13-23:49:38.658680 7f5ac1dbda80 Options.statistics: (nil)
+2021/03/13-23:49:38.658680 7f5ac1dbda80 Options.use_fsync: 0
+2021/03/13-23:49:38.658681 7f5ac1dbda80 Options.max_log_file_size: 0
+2021/03/13-23:49:38.658681 7f5ac1dbda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:49:38.658682 7f5ac1dbda80 Options.log_file_time_to_roll: 0
+2021/03/13-23:49:38.658683 7f5ac1dbda80 Options.keep_log_file_num: 1000
+2021/03/13-23:49:38.658683 7f5ac1dbda80 Options.recycle_log_file_num: 0
+2021/03/13-23:49:38.658684 7f5ac1dbda80 Options.allow_fallocate: 1
+2021/03/13-23:49:38.658684 7f5ac1dbda80 Options.allow_mmap_reads: 0
+2021/03/13-23:49:38.658685 7f5ac1dbda80 Options.allow_mmap_writes: 0
+2021/03/13-23:49:38.658685 7f5ac1dbda80 Options.use_direct_reads: 0
+2021/03/13-23:49:38.658686 7f5ac1dbda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:49:38.658687 7f5ac1dbda80 Options.create_missing_column_families: 0
+2021/03/13-23:49:38.658687 7f5ac1dbda80 Options.db_log_dir:
+2021/03/13-23:49:38.658688 7f5ac1dbda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:49:38.658688 7f5ac1dbda80 Options.table_cache_numshardbits: 6
+2021/03/13-23:49:38.658689 7f5ac1dbda80 Options.max_subcompactions: 1
+2021/03/13-23:49:38.658689 7f5ac1dbda80 Options.max_background_flushes: -1
+2021/03/13-23:49:38.658690 7f5ac1dbda80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:49:38.658691 7f5ac1dbda80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:49:38.658691 7f5ac1dbda80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:49:38.658692 7f5ac1dbda80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:49:38.658692 7f5ac1dbda80 Options.advise_random_on_open: 1
+2021/03/13-23:49:38.658693 7f5ac1dbda80 Options.db_write_buffer_size: 0
+2021/03/13-23:49:38.658693 7f5ac1dbda80 Options.write_buffer_manager: 0x20d2b90
+2021/03/13-23:49:38.658694 7f5ac1dbda80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:49:38.658695 7f5ac1dbda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:49:38.658695 7f5ac1dbda80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:49:38.658696 7f5ac1dbda80 Options.use_adaptive_mutex: 0
+2021/03/13-23:49:38.658696 7f5ac1dbda80 Options.rate_limiter: (nil)
+2021/03/13-23:49:38.658697 7f5ac1dbda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:49:38.658705 7f5ac1dbda80 Options.wal_recovery_mode: 2
+2021/03/13-23:49:38.658705 7f5ac1dbda80 Options.enable_thread_tracking: 0
+2021/03/13-23:49:38.658706 7f5ac1dbda80 Options.enable_pipelined_write: 0
+2021/03/13-23:49:38.658706 7f5ac1dbda80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:49:38.658707 7f5ac1dbda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:49:38.658708 7f5ac1dbda80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:49:38.658708 7f5ac1dbda80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:49:38.658709 7f5ac1dbda80 Options.row_cache: None
+2021/03/13-23:49:38.658709 7f5ac1dbda80 Options.wal_filter: None
+2021/03/13-23:49:38.658710 7f5ac1dbda80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:49:38.658710 7f5ac1dbda80 Options.allow_ingest_behind: 0
+2021/03/13-23:49:38.658711 7f5ac1dbda80 Options.preserve_deletes: 0
+2021/03/13-23:49:38.658711 7f5ac1dbda80 Options.two_write_queues: 0
+2021/03/13-23:49:38.658712 7f5ac1dbda80 Options.manual_wal_flush: 0
+2021/03/13-23:49:38.658713 7f5ac1dbda80 Options.max_background_jobs: 16
+2021/03/13-23:49:38.658714 7f5ac1dbda80 Options.max_background_compactions: -1
+2021/03/13-23:49:38.658714 7f5ac1dbda80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:49:38.658715 7f5ac1dbda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:49:38.658715 7f5ac1dbda80 Options.delayed_write_rate : 16777216
+2021/03/13-23:49:38.658716 7f5ac1dbda80 Options.max_total_wal_size: 0
+2021/03/13-23:49:38.658717 7f5ac1dbda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:49:38.658717 7f5ac1dbda80 Options.stats_dump_period_sec: 600
+2021/03/13-23:49:38.658718 7f5ac1dbda80 Options.max_open_files: -1
+2021/03/13-23:49:38.658718 7f5ac1dbda80 Options.bytes_per_sync: 0
+2021/03/13-23:49:38.658719 7f5ac1dbda80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:49:38.658719 7f5ac1dbda80 Options.compaction_readahead_size: 0
+2021/03/13-23:49:38.658720 7f5ac1dbda80 Compression algorithms supported:
+2021/03/13-23:49:38.658721 7f5ac1dbda80 Snappy supported: 1
+2021/03/13-23:49:38.658722 7f5ac1dbda80 Zlib supported: 1
+2021/03/13-23:49:38.658722 7f5ac1dbda80 Bzip supported: 1
+2021/03/13-23:49:38.658723 7f5ac1dbda80 LZ4 supported: 1
+2021/03/13-23:49:38.658723 7f5ac1dbda80 ZSTDNotFinal supported: 1
+2021/03/13-23:49:38.658727 7f5ac1dbda80 ZSTD supported: 1
+2021/03/13-23:49:38.658730 7f5ac1dbda80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:49:38.658731 7f5ac1dbda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:49:38.658824 7f5ac1dbda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:49:38.658880 7f5ac1dbda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:49:38.658881 7f5ac1dbda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:49:38.658882 7f5ac1dbda80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:49:38.658883 7f5ac1dbda80 Options.compaction_filter: None
+2021/03/13-23:49:38.658883 7f5ac1dbda80 Options.compaction_filter_factory: None
+2021/03/13-23:49:38.658884 7f5ac1dbda80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:49:38.658885 7f5ac1dbda80 Options.table_factory: BlockBasedTable
+2021/03/13-23:49:38.658898 7f5ac1dbda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x20e2520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20c7c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:49:38.658899 7f5ac1dbda80 Options.write_buffer_size: 134217728
+2021/03/13-23:49:38.658900 7f5ac1dbda80 Options.max_write_buffer_number: 6
+2021/03/13-23:49:38.658900 7f5ac1dbda80 Options.compression[0]: NoCompression
+2021/03/13-23:49:38.658901 7f5ac1dbda80 Options.compression[1]: NoCompression
+2021/03/13-23:49:38.658902 7f5ac1dbda80 Options.compression[2]: Snappy
+2021/03/13-23:49:38.658902 7f5ac1dbda80 Options.compression[3]: Snappy
+2021/03/13-23:49:38.658903 7f5ac1dbda80 Options.compression[4]: Snappy
+2021/03/13-23:49:38.658903 7f5ac1dbda80 Options.compression[5]: Snappy
+2021/03/13-23:49:38.658904 7f5ac1dbda80 Options.compression[6]: Snappy
+2021/03/13-23:49:38.658905 7f5ac1dbda80 Options.bottommost_compression: Disabled
+2021/03/13-23:49:38.658905 7f5ac1dbda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:49:38.658906 7f5ac1dbda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:49:38.658907 7f5ac1dbda80 Options.num_levels: 7
+2021/03/13-23:49:38.658907 7f5ac1dbda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:49:38.658908 7f5ac1dbda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:49:38.658908 7f5ac1dbda80 Options.compression_opts.window_bits: -14
+2021/03/13-23:49:38.658909 7f5ac1dbda80 Options.compression_opts.level: -1
+2021/03/13-23:49:38.658909 7f5ac1dbda80 Options.compression_opts.strategy: 0
+2021/03/13-23:49:38.658910 7f5ac1dbda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:49:38.658911 7f5ac1dbda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:49:38.658911 7f5ac1dbda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:49:38.658912 7f5ac1dbda80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:49:38.658912 7f5ac1dbda80 Options.target_file_size_base: 67108864
+2021/03/13-23:49:38.658913 7f5ac1dbda80 Options.target_file_size_multiplier: 1
+2021/03/13-23:49:38.658913 7f5ac1dbda80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:49:38.658914 7f5ac1dbda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:49:38.658915 7f5ac1dbda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:49:38.658916 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:49:38.658924 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:49:38.658925 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:49:38.658925 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:49:38.658926 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:49:38.658926 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:49:38.658927 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:49:38.658927 7f5ac1dbda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:49:38.658928 7f5ac1dbda80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:49:38.658928 7f5ac1dbda80 Options.arena_block_size: 16777216
+2021/03/13-23:49:38.658929 7f5ac1dbda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:49:38.658930 7f5ac1dbda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:49:38.658930 7f5ac1dbda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:49:38.658931 7f5ac1dbda80 Options.disable_auto_compactions: 0
+2021/03/13-23:49:38.658932 7f5ac1dbda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:49:38.658933 7f5ac1dbda80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:49:38.658933 7f5ac1dbda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:49:38.658934 7f5ac1dbda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:49:38.658935 7f5ac1dbda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:49:38.658935 7f5ac1dbda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:49:38.658936 7f5ac1dbda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:49:38.658937 7f5ac1dbda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:49:38.658937 7f5ac1dbda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:49:38.658938 7f5ac1dbda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:49:38.658938 7f5ac1dbda80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:49:38.658939 7f5ac1dbda80 Options.table_properties_collectors:
+2021/03/13-23:49:38.658940 7f5ac1dbda80 Options.inplace_update_support: 0
+2021/03/13-23:49:38.658940 7f5ac1dbda80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:49:38.658941 7f5ac1dbda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:49:38.658942 7f5ac1dbda80 Options.memtable_huge_page_size: 0
+2021/03/13-23:49:38.658942 7f5ac1dbda80 Options.bloom_locality: 0
+2021/03/13-23:49:38.658943 7f5ac1dbda80 Options.max_successive_merges: 0
+2021/03/13-23:49:38.658943 7f5ac1dbda80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:49:38.658944 7f5ac1dbda80 Options.paranoid_file_checks: 0
+2021/03/13-23:49:38.658944 7f5ac1dbda80 Options.force_consistency_checks: 0
+2021/03/13-23:49:38.658945 7f5ac1dbda80 Options.report_bg_io_stats: 0
+2021/03/13-23:49:38.659340 7f5ac1dbda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:49:38.659342 7f5ac1dbda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:49:38.659427 7f5ac1dbda80 EVENT_LOG_v1 {"time_micros": 1615675778659418, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:49:38.659432 7f5ac1dbda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:49:39.326955 7f5ac1dbda80 EVENT_LOG_v1 {"time_micros": 1615675779326952, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615676114512811 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676114512811
new file mode 100644
index 0000000..e8cf3a2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676114512811
@@ -0,0 +1,186 @@
+2021/03/13-23:49:39.339372 7f5ac1dbda80 RocksDB version: 5.11.3
+2021/03/13-23:49:39.339428 7f5ac1dbda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:49:39.339429 7f5ac1dbda80 Compile date Mar 13 2021
+2021/03/13-23:49:39.339432 7f5ac1dbda80 DB SUMMARY
+2021/03/13-23:49:39.339495 7f5ac1dbda80 CURRENT file: CURRENT
+2021/03/13-23:49:39.339496 7f5ac1dbda80 IDENTITY file: IDENTITY
+2021/03/13-23:49:39.339503 7f5ac1dbda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:49:39.339504 7f5ac1dbda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:49:39.339504 7f5ac1dbda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:49:39.339508 7f5ac1dbda80 Options.error_if_exists: 0
+2021/03/13-23:49:39.339509 7f5ac1dbda80 Options.create_if_missing: 1
+2021/03/13-23:49:39.339510 7f5ac1dbda80 Options.paranoid_checks: 1
+2021/03/13-23:49:39.339510 7f5ac1dbda80 Options.env: 0x7f5ac2777080
+2021/03/13-23:49:39.339511 7f5ac1dbda80 Options.info_log: 0x20eaca0
+2021/03/13-23:49:39.339511 7f5ac1dbda80 Options.max_file_opening_threads: 16
+2021/03/13-23:49:39.339512 7f5ac1dbda80 Options.statistics: (nil)
+2021/03/13-23:49:39.339513 7f5ac1dbda80 Options.use_fsync: 0
+2021/03/13-23:49:39.339513 7f5ac1dbda80 Options.max_log_file_size: 0
+2021/03/13-23:49:39.339514 7f5ac1dbda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:49:39.339515 7f5ac1dbda80 Options.log_file_time_to_roll: 0
+2021/03/13-23:49:39.339515 7f5ac1dbda80 Options.keep_log_file_num: 1000
+2021/03/13-23:49:39.339516 7f5ac1dbda80 Options.recycle_log_file_num: 0
+2021/03/13-23:49:39.339517 7f5ac1dbda80 Options.allow_fallocate: 1
+2021/03/13-23:49:39.339517 7f5ac1dbda80 Options.allow_mmap_reads: 0
+2021/03/13-23:49:39.339518 7f5ac1dbda80 Options.allow_mmap_writes: 0
+2021/03/13-23:49:39.339518 7f5ac1dbda80 Options.use_direct_reads: 0
+2021/03/13-23:49:39.339519 7f5ac1dbda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:49:39.339519 7f5ac1dbda80 Options.create_missing_column_families: 0
+2021/03/13-23:49:39.339520 7f5ac1dbda80 Options.db_log_dir:
+2021/03/13-23:49:39.339520 7f5ac1dbda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:49:39.339521 7f5ac1dbda80 Options.table_cache_numshardbits: 6
+2021/03/13-23:49:39.339521 7f5ac1dbda80 Options.max_subcompactions: 1
+2021/03/13-23:49:39.339522 7f5ac1dbda80 Options.max_background_flushes: -1
+2021/03/13-23:49:39.339523 7f5ac1dbda80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:49:39.339523 7f5ac1dbda80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:49:39.339524 7f5ac1dbda80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:49:39.339524 7f5ac1dbda80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:49:39.339525 7f5ac1dbda80 Options.advise_random_on_open: 1
+2021/03/13-23:49:39.339525 7f5ac1dbda80 Options.db_write_buffer_size: 0
+2021/03/13-23:49:39.339526 7f5ac1dbda80 Options.write_buffer_manager: 0x20d2b90
+2021/03/13-23:49:39.339527 7f5ac1dbda80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:49:39.339527 7f5ac1dbda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:49:39.339528 7f5ac1dbda80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:49:39.339528 7f5ac1dbda80 Options.use_adaptive_mutex: 0
+2021/03/13-23:49:39.339529 7f5ac1dbda80 Options.rate_limiter: (nil)
+2021/03/13-23:49:39.339530 7f5ac1dbda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:49:39.339537 7f5ac1dbda80 Options.wal_recovery_mode: 2
+2021/03/13-23:49:39.339538 7f5ac1dbda80 Options.enable_thread_tracking: 0
+2021/03/13-23:49:39.339539 7f5ac1dbda80 Options.enable_pipelined_write: 0
+2021/03/13-23:49:39.339539 7f5ac1dbda80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:49:39.339540 7f5ac1dbda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:49:39.339540 7f5ac1dbda80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:49:39.339541 7f5ac1dbda80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:49:39.339541 7f5ac1dbda80 Options.row_cache: None
+2021/03/13-23:49:39.339542 7f5ac1dbda80 Options.wal_filter: None
+2021/03/13-23:49:39.339543 7f5ac1dbda80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:49:39.339543 7f5ac1dbda80 Options.allow_ingest_behind: 0
+2021/03/13-23:49:39.339544 7f5ac1dbda80 Options.preserve_deletes: 0
+2021/03/13-23:49:39.339544 7f5ac1dbda80 Options.two_write_queues: 0
+2021/03/13-23:49:39.339545 7f5ac1dbda80 Options.manual_wal_flush: 0
+2021/03/13-23:49:39.339546 7f5ac1dbda80 Options.max_background_jobs: 16
+2021/03/13-23:49:39.339547 7f5ac1dbda80 Options.max_background_compactions: -1
+2021/03/13-23:49:39.339547 7f5ac1dbda80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:49:39.339548 7f5ac1dbda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:49:39.339548 7f5ac1dbda80 Options.delayed_write_rate : 16777216
+2021/03/13-23:49:39.339549 7f5ac1dbda80 Options.max_total_wal_size: 0
+2021/03/13-23:49:39.339549 7f5ac1dbda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:49:39.339550 7f5ac1dbda80 Options.stats_dump_period_sec: 600
+2021/03/13-23:49:39.339551 7f5ac1dbda80 Options.max_open_files: -1
+2021/03/13-23:49:39.339551 7f5ac1dbda80 Options.bytes_per_sync: 0
+2021/03/13-23:49:39.339552 7f5ac1dbda80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:49:39.339552 7f5ac1dbda80 Options.compaction_readahead_size: 0
+2021/03/13-23:49:39.339553 7f5ac1dbda80 Compression algorithms supported:
+2021/03/13-23:49:39.339553 7f5ac1dbda80 Snappy supported: 1
+2021/03/13-23:49:39.339554 7f5ac1dbda80 Zlib supported: 1
+2021/03/13-23:49:39.339554 7f5ac1dbda80 Bzip supported: 1
+2021/03/13-23:49:39.339555 7f5ac1dbda80 LZ4 supported: 1
+2021/03/13-23:49:39.339556 7f5ac1dbda80 ZSTDNotFinal supported: 1
+2021/03/13-23:49:39.339559 7f5ac1dbda80 ZSTD supported: 1
+2021/03/13-23:49:39.339562 7f5ac1dbda80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:49:39.339564 7f5ac1dbda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:49:39.339653 7f5ac1dbda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:49:39.339707 7f5ac1dbda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:49:39.339709 7f5ac1dbda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:49:39.339710 7f5ac1dbda80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:49:39.339710 7f5ac1dbda80 Options.compaction_filter: None
+2021/03/13-23:49:39.339711 7f5ac1dbda80 Options.compaction_filter_factory: None
+2021/03/13-23:49:39.339712 7f5ac1dbda80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:49:39.339712 7f5ac1dbda80 Options.table_factory: BlockBasedTable
+2021/03/13-23:49:39.339725 7f5ac1dbda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x20e2520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20c7c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:49:39.339726 7f5ac1dbda80 Options.write_buffer_size: 134217728
+2021/03/13-23:49:39.339727 7f5ac1dbda80 Options.max_write_buffer_number: 6
+2021/03/13-23:49:39.339727 7f5ac1dbda80 Options.compression[0]: NoCompression
+2021/03/13-23:49:39.339728 7f5ac1dbda80 Options.compression[1]: NoCompression
+2021/03/13-23:49:39.339729 7f5ac1dbda80 Options.compression[2]: Snappy
+2021/03/13-23:49:39.339729 7f5ac1dbda80 Options.compression[3]: Snappy
+2021/03/13-23:49:39.339730 7f5ac1dbda80 Options.compression[4]: Snappy
+2021/03/13-23:49:39.339730 7f5ac1dbda80 Options.compression[5]: Snappy
+2021/03/13-23:49:39.339731 7f5ac1dbda80 Options.compression[6]: Snappy
+2021/03/13-23:49:39.339732 7f5ac1dbda80 Options.bottommost_compression: Disabled
+2021/03/13-23:49:39.339732 7f5ac1dbda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:49:39.339733 7f5ac1dbda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:49:39.339733 7f5ac1dbda80 Options.num_levels: 7
+2021/03/13-23:49:39.339734 7f5ac1dbda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:49:39.339735 7f5ac1dbda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:49:39.339735 7f5ac1dbda80 Options.compression_opts.window_bits: -14
+2021/03/13-23:49:39.339736 7f5ac1dbda80 Options.compression_opts.level: -1
+2021/03/13-23:49:39.339736 7f5ac1dbda80 Options.compression_opts.strategy: 0
+2021/03/13-23:49:39.339737 7f5ac1dbda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:49:39.339737 7f5ac1dbda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:49:39.339738 7f5ac1dbda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:49:39.339738 7f5ac1dbda80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:49:39.339739 7f5ac1dbda80 Options.target_file_size_base: 67108864
+2021/03/13-23:49:39.339740 7f5ac1dbda80 Options.target_file_size_multiplier: 1
+2021/03/13-23:49:39.339740 7f5ac1dbda80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:49:39.339741 7f5ac1dbda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:49:39.339741 7f5ac1dbda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:49:39.339743 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:49:39.339750 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:49:39.339751 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:49:39.339752 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:49:39.339752 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:49:39.339753 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:49:39.339753 7f5ac1dbda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:49:39.339754 7f5ac1dbda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:49:39.339754 7f5ac1dbda80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:49:39.339755 7f5ac1dbda80 Options.arena_block_size: 16777216
+2021/03/13-23:49:39.339755 7f5ac1dbda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:49:39.339756 7f5ac1dbda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:49:39.339757 7f5ac1dbda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:49:39.339757 7f5ac1dbda80 Options.disable_auto_compactions: 0
+2021/03/13-23:49:39.339759 7f5ac1dbda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:49:39.339760 7f5ac1dbda80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:49:39.339760 7f5ac1dbda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:49:39.339761 7f5ac1dbda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:49:39.339761 7f5ac1dbda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:49:39.339762 7f5ac1dbda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:49:39.339762 7f5ac1dbda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:49:39.339763 7f5ac1dbda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:49:39.339764 7f5ac1dbda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:49:39.339764 7f5ac1dbda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:49:39.339765 7f5ac1dbda80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:49:39.339766 7f5ac1dbda80 Options.table_properties_collectors:
+2021/03/13-23:49:39.339766 7f5ac1dbda80 Options.inplace_update_support: 0
+2021/03/13-23:49:39.339767 7f5ac1dbda80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:49:39.339767 7f5ac1dbda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:49:39.339768 7f5ac1dbda80 Options.memtable_huge_page_size: 0
+2021/03/13-23:49:39.339769 7f5ac1dbda80 Options.bloom_locality: 0
+2021/03/13-23:49:39.339769 7f5ac1dbda80 Options.max_successive_merges: 0
+2021/03/13-23:49:39.339770 7f5ac1dbda80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:49:39.339770 7f5ac1dbda80 Options.paranoid_file_checks: 0
+2021/03/13-23:49:39.339771 7f5ac1dbda80 Options.force_consistency_checks: 0
+2021/03/13-23:49:39.339771 7f5ac1dbda80 Options.report_bg_io_stats: 0
+2021/03/13-23:49:39.340135 7f5ac1dbda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:49:39.340137 7f5ac1dbda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:49:39.340221 7f5ac1dbda80 EVENT_LOG_v1 {"time_micros": 1615675779340212, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:49:39.340226 7f5ac1dbda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:49:40.010566 7f5ac1dbda80 EVENT_LOG_v1 {"time_micros": 1615675780010563, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615676115194939 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676115194939
new file mode 100644
index 0000000..cc66c5b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676115194939
@@ -0,0 +1,186 @@
+2021/03/13-23:55:14.513254 7f9c40c91a80 RocksDB version: 5.11.3
+2021/03/13-23:55:14.513333 7f9c40c91a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:55:14.513335 7f9c40c91a80 Compile date Mar 13 2021
+2021/03/13-23:55:14.513338 7f9c40c91a80 DB SUMMARY
+2021/03/13-23:55:14.513417 7f9c40c91a80 CURRENT file: CURRENT
+2021/03/13-23:55:14.513418 7f9c40c91a80 IDENTITY file: IDENTITY
+2021/03/13-23:55:14.513426 7f9c40c91a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:55:14.513427 7f9c40c91a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:55:14.513428 7f9c40c91a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:55:14.513433 7f9c40c91a80 Options.error_if_exists: 0
+2021/03/13-23:55:14.513434 7f9c40c91a80 Options.create_if_missing: 1
+2021/03/13-23:55:14.513434 7f9c40c91a80 Options.paranoid_checks: 1
+2021/03/13-23:55:14.513435 7f9c40c91a80 Options.env: 0x7f9c4164b080
+2021/03/13-23:55:14.513436 7f9c40c91a80 Options.info_log: 0x1beeca0
+2021/03/13-23:55:14.513436 7f9c40c91a80 Options.max_file_opening_threads: 16
+2021/03/13-23:55:14.513437 7f9c40c91a80 Options.statistics: (nil)
+2021/03/13-23:55:14.513438 7f9c40c91a80 Options.use_fsync: 0
+2021/03/13-23:55:14.513439 7f9c40c91a80 Options.max_log_file_size: 0
+2021/03/13-23:55:14.513439 7f9c40c91a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:55:14.513440 7f9c40c91a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:55:14.513441 7f9c40c91a80 Options.keep_log_file_num: 1000
+2021/03/13-23:55:14.513441 7f9c40c91a80 Options.recycle_log_file_num: 0
+2021/03/13-23:55:14.513442 7f9c40c91a80 Options.allow_fallocate: 1
+2021/03/13-23:55:14.513443 7f9c40c91a80 Options.allow_mmap_reads: 0
+2021/03/13-23:55:14.513443 7f9c40c91a80 Options.allow_mmap_writes: 0
+2021/03/13-23:55:14.513444 7f9c40c91a80 Options.use_direct_reads: 0
+2021/03/13-23:55:14.513445 7f9c40c91a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:55:14.513445 7f9c40c91a80 Options.create_missing_column_families: 0
+2021/03/13-23:55:14.513446 7f9c40c91a80 Options.db_log_dir:
+2021/03/13-23:55:14.513446 7f9c40c91a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:55:14.513447 7f9c40c91a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:55:14.513448 7f9c40c91a80 Options.max_subcompactions: 1
+2021/03/13-23:55:14.513448 7f9c40c91a80 Options.max_background_flushes: -1
+2021/03/13-23:55:14.513449 7f9c40c91a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:55:14.513450 7f9c40c91a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:55:14.513450 7f9c40c91a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:55:14.513451 7f9c40c91a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:55:14.513452 7f9c40c91a80 Options.advise_random_on_open: 1
+2021/03/13-23:55:14.513452 7f9c40c91a80 Options.db_write_buffer_size: 0
+2021/03/13-23:55:14.513453 7f9c40c91a80 Options.write_buffer_manager: 0x1bd6b90
+2021/03/13-23:55:14.513454 7f9c40c91a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:55:14.513454 7f9c40c91a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:55:14.513455 7f9c40c91a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:55:14.513456 7f9c40c91a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:55:14.513456 7f9c40c91a80 Options.rate_limiter: (nil)
+2021/03/13-23:55:14.513458 7f9c40c91a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:55:14.513467 7f9c40c91a80 Options.wal_recovery_mode: 2
+2021/03/13-23:55:14.513468 7f9c40c91a80 Options.enable_thread_tracking: 0
+2021/03/13-23:55:14.513469 7f9c40c91a80 Options.enable_pipelined_write: 0
+2021/03/13-23:55:14.513469 7f9c40c91a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:55:14.513470 7f9c40c91a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:55:14.513470 7f9c40c91a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:55:14.513471 7f9c40c91a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:55:14.513472 7f9c40c91a80 Options.row_cache: None
+2021/03/13-23:55:14.513472 7f9c40c91a80 Options.wal_filter: None
+2021/03/13-23:55:14.513473 7f9c40c91a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:55:14.513474 7f9c40c91a80 Options.allow_ingest_behind: 0
+2021/03/13-23:55:14.513474 7f9c40c91a80 Options.preserve_deletes: 0
+2021/03/13-23:55:14.513475 7f9c40c91a80 Options.two_write_queues: 0
+2021/03/13-23:55:14.513476 7f9c40c91a80 Options.manual_wal_flush: 0
+2021/03/13-23:55:14.513477 7f9c40c91a80 Options.max_background_jobs: 16
+2021/03/13-23:55:14.513478 7f9c40c91a80 Options.max_background_compactions: -1
+2021/03/13-23:55:14.513479 7f9c40c91a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:55:14.513479 7f9c40c91a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:55:14.513480 7f9c40c91a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:55:14.513480 7f9c40c91a80 Options.max_total_wal_size: 0
+2021/03/13-23:55:14.513481 7f9c40c91a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:55:14.513482 7f9c40c91a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:55:14.513483 7f9c40c91a80 Options.max_open_files: -1
+2021/03/13-23:55:14.513483 7f9c40c91a80 Options.bytes_per_sync: 0
+2021/03/13-23:55:14.513484 7f9c40c91a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:55:14.513484 7f9c40c91a80 Options.compaction_readahead_size: 0
+2021/03/13-23:55:14.513485 7f9c40c91a80 Compression algorithms supported:
+2021/03/13-23:55:14.513486 7f9c40c91a80 Snappy supported: 1
+2021/03/13-23:55:14.513486 7f9c40c91a80 Zlib supported: 1
+2021/03/13-23:55:14.513487 7f9c40c91a80 Bzip supported: 1
+2021/03/13-23:55:14.513488 7f9c40c91a80 LZ4 supported: 1
+2021/03/13-23:55:14.513488 7f9c40c91a80 ZSTDNotFinal supported: 1
+2021/03/13-23:55:14.513494 7f9c40c91a80 ZSTD supported: 1
+2021/03/13-23:55:14.513498 7f9c40c91a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:55:14.513500 7f9c40c91a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:55:14.513648 7f9c40c91a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:55:14.513717 7f9c40c91a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:55:14.513719 7f9c40c91a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:55:14.513720 7f9c40c91a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:55:14.513721 7f9c40c91a80 Options.compaction_filter: None
+2021/03/13-23:55:14.513722 7f9c40c91a80 Options.compaction_filter_factory: None
+2021/03/13-23:55:14.513722 7f9c40c91a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:55:14.513723 7f9c40c91a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:55:14.513741 7f9c40c91a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1be6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1bcbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:55:14.513742 7f9c40c91a80 Options.write_buffer_size: 134217728
+2021/03/13-23:55:14.513742 7f9c40c91a80 Options.max_write_buffer_number: 6
+2021/03/13-23:55:14.513743 7f9c40c91a80 Options.compression[0]: NoCompression
+2021/03/13-23:55:14.513744 7f9c40c91a80 Options.compression[1]: NoCompression
+2021/03/13-23:55:14.513745 7f9c40c91a80 Options.compression[2]: Snappy
+2021/03/13-23:55:14.513746 7f9c40c91a80 Options.compression[3]: Snappy
+2021/03/13-23:55:14.513746 7f9c40c91a80 Options.compression[4]: Snappy
+2021/03/13-23:55:14.513747 7f9c40c91a80 Options.compression[5]: Snappy
+2021/03/13-23:55:14.513747 7f9c40c91a80 Options.compression[6]: Snappy
+2021/03/13-23:55:14.513748 7f9c40c91a80 Options.bottommost_compression: Disabled
+2021/03/13-23:55:14.513749 7f9c40c91a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:55:14.513750 7f9c40c91a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:55:14.513750 7f9c40c91a80 Options.num_levels: 7
+2021/03/13-23:55:14.513751 7f9c40c91a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:55:14.513752 7f9c40c91a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:55:14.513752 7f9c40c91a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:55:14.513753 7f9c40c91a80 Options.compression_opts.level: -1
+2021/03/13-23:55:14.513754 7f9c40c91a80 Options.compression_opts.strategy: 0
+2021/03/13-23:55:14.513754 7f9c40c91a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:55:14.513755 7f9c40c91a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:55:14.513755 7f9c40c91a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:55:14.513756 7f9c40c91a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:55:14.513757 7f9c40c91a80 Options.target_file_size_base: 67108864
+2021/03/13-23:55:14.513757 7f9c40c91a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:55:14.513758 7f9c40c91a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:55:14.513759 7f9c40c91a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:55:14.513759 7f9c40c91a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:55:14.513761 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:55:14.513770 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:55:14.513771 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:55:14.513772 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:55:14.513773 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:55:14.513773 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:55:14.513774 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:55:14.513774 7f9c40c91a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:55:14.513775 7f9c40c91a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:55:14.513776 7f9c40c91a80 Options.arena_block_size: 16777216
+2021/03/13-23:55:14.513776 7f9c40c91a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:55:14.513777 7f9c40c91a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:55:14.513778 7f9c40c91a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:55:14.513779 7f9c40c91a80 Options.disable_auto_compactions: 0
+2021/03/13-23:55:14.513780 7f9c40c91a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:55:14.513781 7f9c40c91a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:55:14.513782 7f9c40c91a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:55:14.513783 7f9c40c91a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:55:14.513783 7f9c40c91a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:55:14.513784 7f9c40c91a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:55:14.513785 7f9c40c91a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:55:14.513786 7f9c40c91a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:55:14.513786 7f9c40c91a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:55:14.513787 7f9c40c91a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:55:14.513788 7f9c40c91a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:55:14.513788 7f9c40c91a80 Options.table_properties_collectors:
+2021/03/13-23:55:14.513789 7f9c40c91a80 Options.inplace_update_support: 0
+2021/03/13-23:55:14.513789 7f9c40c91a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:55:14.513790 7f9c40c91a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:55:14.513791 7f9c40c91a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:55:14.513792 7f9c40c91a80 Options.bloom_locality: 0
+2021/03/13-23:55:14.513792 7f9c40c91a80 Options.max_successive_merges: 0
+2021/03/13-23:55:14.513793 7f9c40c91a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:55:14.513794 7f9c40c91a80 Options.paranoid_file_checks: 0
+2021/03/13-23:55:14.513794 7f9c40c91a80 Options.force_consistency_checks: 0
+2021/03/13-23:55:14.513795 7f9c40c91a80 Options.report_bg_io_stats: 0
+2021/03/13-23:55:14.514287 7f9c40c91a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:55:14.514290 7f9c40c91a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:55:14.514396 7f9c40c91a80 EVENT_LOG_v1 {"time_micros": 1615676114514379, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:55:14.514402 7f9c40c91a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:55:15.183444 7f9c40c91a80 EVENT_LOG_v1 {"time_micros": 1615676115183440, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615676115868438 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676115868438
new file mode 100644
index 0000000..ca84b62
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676115868438
@@ -0,0 +1,186 @@
+2021/03/13-23:55:15.195256 7f9c40c91a80 RocksDB version: 5.11.3
+2021/03/13-23:55:15.195313 7f9c40c91a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:55:15.195314 7f9c40c91a80 Compile date Mar 13 2021
+2021/03/13-23:55:15.195317 7f9c40c91a80 DB SUMMARY
+2021/03/13-23:55:15.195381 7f9c40c91a80 CURRENT file: CURRENT
+2021/03/13-23:55:15.195382 7f9c40c91a80 IDENTITY file: IDENTITY
+2021/03/13-23:55:15.195389 7f9c40c91a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:55:15.195390 7f9c40c91a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:55:15.195391 7f9c40c91a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:55:15.195395 7f9c40c91a80 Options.error_if_exists: 0
+2021/03/13-23:55:15.195395 7f9c40c91a80 Options.create_if_missing: 1
+2021/03/13-23:55:15.195396 7f9c40c91a80 Options.paranoid_checks: 1
+2021/03/13-23:55:15.195397 7f9c40c91a80 Options.env: 0x7f9c4164b080
+2021/03/13-23:55:15.195397 7f9c40c91a80 Options.info_log: 0x1beeca0
+2021/03/13-23:55:15.195398 7f9c40c91a80 Options.max_file_opening_threads: 16
+2021/03/13-23:55:15.195398 7f9c40c91a80 Options.statistics: (nil)
+2021/03/13-23:55:15.195399 7f9c40c91a80 Options.use_fsync: 0
+2021/03/13-23:55:15.195400 7f9c40c91a80 Options.max_log_file_size: 0
+2021/03/13-23:55:15.195400 7f9c40c91a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:55:15.195401 7f9c40c91a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:55:15.195401 7f9c40c91a80 Options.keep_log_file_num: 1000
+2021/03/13-23:55:15.195402 7f9c40c91a80 Options.recycle_log_file_num: 0
+2021/03/13-23:55:15.195403 7f9c40c91a80 Options.allow_fallocate: 1
+2021/03/13-23:55:15.195403 7f9c40c91a80 Options.allow_mmap_reads: 0
+2021/03/13-23:55:15.195404 7f9c40c91a80 Options.allow_mmap_writes: 0
+2021/03/13-23:55:15.195404 7f9c40c91a80 Options.use_direct_reads: 0
+2021/03/13-23:55:15.195405 7f9c40c91a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:55:15.195405 7f9c40c91a80 Options.create_missing_column_families: 0
+2021/03/13-23:55:15.195406 7f9c40c91a80 Options.db_log_dir:
+2021/03/13-23:55:15.195406 7f9c40c91a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:55:15.195407 7f9c40c91a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:55:15.195407 7f9c40c91a80 Options.max_subcompactions: 1
+2021/03/13-23:55:15.195408 7f9c40c91a80 Options.max_background_flushes: -1
+2021/03/13-23:55:15.195409 7f9c40c91a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:55:15.195409 7f9c40c91a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:55:15.195410 7f9c40c91a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:55:15.195410 7f9c40c91a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:55:15.195411 7f9c40c91a80 Options.advise_random_on_open: 1
+2021/03/13-23:55:15.195411 7f9c40c91a80 Options.db_write_buffer_size: 0
+2021/03/13-23:55:15.195412 7f9c40c91a80 Options.write_buffer_manager: 0x1bd6b90
+2021/03/13-23:55:15.195413 7f9c40c91a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:55:15.195413 7f9c40c91a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:55:15.195414 7f9c40c91a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:55:15.195414 7f9c40c91a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:55:15.195415 7f9c40c91a80 Options.rate_limiter: (nil)
+2021/03/13-23:55:15.195416 7f9c40c91a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:55:15.195424 7f9c40c91a80 Options.wal_recovery_mode: 2
+2021/03/13-23:55:15.195424 7f9c40c91a80 Options.enable_thread_tracking: 0
+2021/03/13-23:55:15.195425 7f9c40c91a80 Options.enable_pipelined_write: 0
+2021/03/13-23:55:15.195426 7f9c40c91a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:55:15.195426 7f9c40c91a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:55:15.195427 7f9c40c91a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:55:15.195427 7f9c40c91a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:55:15.195428 7f9c40c91a80 Options.row_cache: None
+2021/03/13-23:55:15.195428 7f9c40c91a80 Options.wal_filter: None
+2021/03/13-23:55:15.195429 7f9c40c91a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:55:15.195430 7f9c40c91a80 Options.allow_ingest_behind: 0
+2021/03/13-23:55:15.195430 7f9c40c91a80 Options.preserve_deletes: 0
+2021/03/13-23:55:15.195431 7f9c40c91a80 Options.two_write_queues: 0
+2021/03/13-23:55:15.195431 7f9c40c91a80 Options.manual_wal_flush: 0
+2021/03/13-23:55:15.195432 7f9c40c91a80 Options.max_background_jobs: 16
+2021/03/13-23:55:15.195433 7f9c40c91a80 Options.max_background_compactions: -1
+2021/03/13-23:55:15.195433 7f9c40c91a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:55:15.195434 7f9c40c91a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:55:15.195435 7f9c40c91a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:55:15.195435 7f9c40c91a80 Options.max_total_wal_size: 0
+2021/03/13-23:55:15.195436 7f9c40c91a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:55:15.195436 7f9c40c91a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:55:15.195437 7f9c40c91a80 Options.max_open_files: -1
+2021/03/13-23:55:15.195437 7f9c40c91a80 Options.bytes_per_sync: 0
+2021/03/13-23:55:15.195438 7f9c40c91a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:55:15.195438 7f9c40c91a80 Options.compaction_readahead_size: 0
+2021/03/13-23:55:15.195439 7f9c40c91a80 Compression algorithms supported:
+2021/03/13-23:55:15.195440 7f9c40c91a80 Snappy supported: 1
+2021/03/13-23:55:15.195440 7f9c40c91a80 Zlib supported: 1
+2021/03/13-23:55:15.195441 7f9c40c91a80 Bzip supported: 1
+2021/03/13-23:55:15.195441 7f9c40c91a80 LZ4 supported: 1
+2021/03/13-23:55:15.195442 7f9c40c91a80 ZSTDNotFinal supported: 1
+2021/03/13-23:55:15.195446 7f9c40c91a80 ZSTD supported: 1
+2021/03/13-23:55:15.195449 7f9c40c91a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:55:15.195450 7f9c40c91a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:55:15.195539 7f9c40c91a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:55:15.195592 7f9c40c91a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:55:15.195594 7f9c40c91a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:55:15.195595 7f9c40c91a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:55:15.195595 7f9c40c91a80 Options.compaction_filter: None
+2021/03/13-23:55:15.195596 7f9c40c91a80 Options.compaction_filter_factory: None
+2021/03/13-23:55:15.195596 7f9c40c91a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:55:15.195597 7f9c40c91a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:55:15.195611 7f9c40c91a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1be6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1bcbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:55:15.195611 7f9c40c91a80 Options.write_buffer_size: 134217728
+2021/03/13-23:55:15.195612 7f9c40c91a80 Options.max_write_buffer_number: 6
+2021/03/13-23:55:15.195613 7f9c40c91a80 Options.compression[0]: NoCompression
+2021/03/13-23:55:15.195613 7f9c40c91a80 Options.compression[1]: NoCompression
+2021/03/13-23:55:15.195614 7f9c40c91a80 Options.compression[2]: Snappy
+2021/03/13-23:55:15.195615 7f9c40c91a80 Options.compression[3]: Snappy
+2021/03/13-23:55:15.195615 7f9c40c91a80 Options.compression[4]: Snappy
+2021/03/13-23:55:15.195616 7f9c40c91a80 Options.compression[5]: Snappy
+2021/03/13-23:55:15.195616 7f9c40c91a80 Options.compression[6]: Snappy
+2021/03/13-23:55:15.195617 7f9c40c91a80 Options.bottommost_compression: Disabled
+2021/03/13-23:55:15.195618 7f9c40c91a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:55:15.195618 7f9c40c91a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:55:15.195619 7f9c40c91a80 Options.num_levels: 7
+2021/03/13-23:55:15.195619 7f9c40c91a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:55:15.195620 7f9c40c91a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:55:15.195620 7f9c40c91a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:55:15.195621 7f9c40c91a80 Options.compression_opts.level: -1
+2021/03/13-23:55:15.195622 7f9c40c91a80 Options.compression_opts.strategy: 0
+2021/03/13-23:55:15.195622 7f9c40c91a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:55:15.195623 7f9c40c91a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:55:15.195623 7f9c40c91a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:55:15.195624 7f9c40c91a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:55:15.195625 7f9c40c91a80 Options.target_file_size_base: 67108864
+2021/03/13-23:55:15.195625 7f9c40c91a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:55:15.195626 7f9c40c91a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:55:15.195626 7f9c40c91a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:55:15.195627 7f9c40c91a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:55:15.195628 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:55:15.195636 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:55:15.195636 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:55:15.195637 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:55:15.195638 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:55:15.195638 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:55:15.195639 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:55:15.195639 7f9c40c91a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:55:15.195640 7f9c40c91a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:55:15.195640 7f9c40c91a80 Options.arena_block_size: 16777216
+2021/03/13-23:55:15.195641 7f9c40c91a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:55:15.195642 7f9c40c91a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:55:15.195642 7f9c40c91a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:55:15.195643 7f9c40c91a80 Options.disable_auto_compactions: 0
+2021/03/13-23:55:15.195644 7f9c40c91a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:55:15.195645 7f9c40c91a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:55:15.195646 7f9c40c91a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:55:15.195646 7f9c40c91a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:55:15.195647 7f9c40c91a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:55:15.195647 7f9c40c91a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:55:15.195648 7f9c40c91a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:55:15.195649 7f9c40c91a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:55:15.195649 7f9c40c91a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:55:15.195650 7f9c40c91a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:55:15.195651 7f9c40c91a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:55:15.195651 7f9c40c91a80 Options.table_properties_collectors:
+2021/03/13-23:55:15.195652 7f9c40c91a80 Options.inplace_update_support: 0
+2021/03/13-23:55:15.195652 7f9c40c91a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:55:15.195653 7f9c40c91a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:55:15.195654 7f9c40c91a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:55:15.195654 7f9c40c91a80 Options.bloom_locality: 0
+2021/03/13-23:55:15.195655 7f9c40c91a80 Options.max_successive_merges: 0
+2021/03/13-23:55:15.195655 7f9c40c91a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:55:15.195656 7f9c40c91a80 Options.paranoid_file_checks: 0
+2021/03/13-23:55:15.195656 7f9c40c91a80 Options.force_consistency_checks: 0
+2021/03/13-23:55:15.195657 7f9c40c91a80 Options.report_bg_io_stats: 0
+2021/03/13-23:55:15.196022 7f9c40c91a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:55:15.196025 7f9c40c91a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:55:15.196106 7f9c40c91a80 EVENT_LOG_v1 {"time_micros": 1615676115196095, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:55:15.196111 7f9c40c91a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:55:15.857036 7f9c40c91a80 EVENT_LOG_v1 {"time_micros": 1615676115857033, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615676116546138 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676116546138
new file mode 100644
index 0000000..c3a317d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676116546138
@@ -0,0 +1,186 @@
+2021/03/13-23:55:15.868761 7f9c40c91a80 RocksDB version: 5.11.3
+2021/03/13-23:55:15.868816 7f9c40c91a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:55:15.868818 7f9c40c91a80 Compile date Mar 13 2021
+2021/03/13-23:55:15.868820 7f9c40c91a80 DB SUMMARY
+2021/03/13-23:55:15.868885 7f9c40c91a80 CURRENT file: CURRENT
+2021/03/13-23:55:15.868886 7f9c40c91a80 IDENTITY file: IDENTITY
+2021/03/13-23:55:15.868893 7f9c40c91a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:55:15.868894 7f9c40c91a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:55:15.868895 7f9c40c91a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:55:15.868899 7f9c40c91a80 Options.error_if_exists: 0
+2021/03/13-23:55:15.868900 7f9c40c91a80 Options.create_if_missing: 1
+2021/03/13-23:55:15.868900 7f9c40c91a80 Options.paranoid_checks: 1
+2021/03/13-23:55:15.868901 7f9c40c91a80 Options.env: 0x7f9c4164b080
+2021/03/13-23:55:15.868901 7f9c40c91a80 Options.info_log: 0x1beeca0
+2021/03/13-23:55:15.868902 7f9c40c91a80 Options.max_file_opening_threads: 16
+2021/03/13-23:55:15.868902 7f9c40c91a80 Options.statistics: (nil)
+2021/03/13-23:55:15.868903 7f9c40c91a80 Options.use_fsync: 0
+2021/03/13-23:55:15.868904 7f9c40c91a80 Options.max_log_file_size: 0
+2021/03/13-23:55:15.868904 7f9c40c91a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:55:15.868905 7f9c40c91a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:55:15.868906 7f9c40c91a80 Options.keep_log_file_num: 1000
+2021/03/13-23:55:15.868906 7f9c40c91a80 Options.recycle_log_file_num: 0
+2021/03/13-23:55:15.868907 7f9c40c91a80 Options.allow_fallocate: 1
+2021/03/13-23:55:15.868907 7f9c40c91a80 Options.allow_mmap_reads: 0
+2021/03/13-23:55:15.868908 7f9c40c91a80 Options.allow_mmap_writes: 0
+2021/03/13-23:55:15.868908 7f9c40c91a80 Options.use_direct_reads: 0
+2021/03/13-23:55:15.868909 7f9c40c91a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:55:15.868909 7f9c40c91a80 Options.create_missing_column_families: 0
+2021/03/13-23:55:15.868910 7f9c40c91a80 Options.db_log_dir:
+2021/03/13-23:55:15.868911 7f9c40c91a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:55:15.868911 7f9c40c91a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:55:15.868912 7f9c40c91a80 Options.max_subcompactions: 1
+2021/03/13-23:55:15.868912 7f9c40c91a80 Options.max_background_flushes: -1
+2021/03/13-23:55:15.868913 7f9c40c91a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:55:15.868913 7f9c40c91a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:55:15.868914 7f9c40c91a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:55:15.868914 7f9c40c91a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:55:15.868915 7f9c40c91a80 Options.advise_random_on_open: 1
+2021/03/13-23:55:15.868916 7f9c40c91a80 Options.db_write_buffer_size: 0
+2021/03/13-23:55:15.868916 7f9c40c91a80 Options.write_buffer_manager: 0x1bd6b90
+2021/03/13-23:55:15.868917 7f9c40c91a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:55:15.868917 7f9c40c91a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:55:15.868918 7f9c40c91a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:55:15.868918 7f9c40c91a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:55:15.868919 7f9c40c91a80 Options.rate_limiter: (nil)
+2021/03/13-23:55:15.868920 7f9c40c91a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:55:15.868927 7f9c40c91a80 Options.wal_recovery_mode: 2
+2021/03/13-23:55:15.868928 7f9c40c91a80 Options.enable_thread_tracking: 0
+2021/03/13-23:55:15.868929 7f9c40c91a80 Options.enable_pipelined_write: 0
+2021/03/13-23:55:15.868929 7f9c40c91a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:55:15.868930 7f9c40c91a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:55:15.868930 7f9c40c91a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:55:15.868931 7f9c40c91a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:55:15.868931 7f9c40c91a80 Options.row_cache: None
+2021/03/13-23:55:15.868932 7f9c40c91a80 Options.wal_filter: None
+2021/03/13-23:55:15.868933 7f9c40c91a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:55:15.868933 7f9c40c91a80 Options.allow_ingest_behind: 0
+2021/03/13-23:55:15.868934 7f9c40c91a80 Options.preserve_deletes: 0
+2021/03/13-23:55:15.868934 7f9c40c91a80 Options.two_write_queues: 0
+2021/03/13-23:55:15.868935 7f9c40c91a80 Options.manual_wal_flush: 0
+2021/03/13-23:55:15.868936 7f9c40c91a80 Options.max_background_jobs: 16
+2021/03/13-23:55:15.868936 7f9c40c91a80 Options.max_background_compactions: -1
+2021/03/13-23:55:15.868937 7f9c40c91a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:55:15.868937 7f9c40c91a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:55:15.868938 7f9c40c91a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:55:15.868939 7f9c40c91a80 Options.max_total_wal_size: 0
+2021/03/13-23:55:15.868939 7f9c40c91a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:55:15.868940 7f9c40c91a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:55:15.868940 7f9c40c91a80 Options.max_open_files: -1
+2021/03/13-23:55:15.868941 7f9c40c91a80 Options.bytes_per_sync: 0
+2021/03/13-23:55:15.868941 7f9c40c91a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:55:15.868942 7f9c40c91a80 Options.compaction_readahead_size: 0
+2021/03/13-23:55:15.868943 7f9c40c91a80 Compression algorithms supported:
+2021/03/13-23:55:15.868943 7f9c40c91a80 Snappy supported: 1
+2021/03/13-23:55:15.868944 7f9c40c91a80 Zlib supported: 1
+2021/03/13-23:55:15.868944 7f9c40c91a80 Bzip supported: 1
+2021/03/13-23:55:15.868945 7f9c40c91a80 LZ4 supported: 1
+2021/03/13-23:55:15.868945 7f9c40c91a80 ZSTDNotFinal supported: 1
+2021/03/13-23:55:15.868949 7f9c40c91a80 ZSTD supported: 1
+2021/03/13-23:55:15.868952 7f9c40c91a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:55:15.868953 7f9c40c91a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:55:15.869044 7f9c40c91a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:55:15.869096 7f9c40c91a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:55:15.869098 7f9c40c91a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:55:15.869098 7f9c40c91a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:55:15.869099 7f9c40c91a80 Options.compaction_filter: None
+2021/03/13-23:55:15.869100 7f9c40c91a80 Options.compaction_filter_factory: None
+2021/03/13-23:55:15.869100 7f9c40c91a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:55:15.869101 7f9c40c91a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:55:15.869115 7f9c40c91a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1be6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1bcbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:55:15.869115 7f9c40c91a80 Options.write_buffer_size: 134217728
+2021/03/13-23:55:15.869116 7f9c40c91a80 Options.max_write_buffer_number: 6
+2021/03/13-23:55:15.869117 7f9c40c91a80 Options.compression[0]: NoCompression
+2021/03/13-23:55:15.869117 7f9c40c91a80 Options.compression[1]: NoCompression
+2021/03/13-23:55:15.869118 7f9c40c91a80 Options.compression[2]: Snappy
+2021/03/13-23:55:15.869119 7f9c40c91a80 Options.compression[3]: Snappy
+2021/03/13-23:55:15.869119 7f9c40c91a80 Options.compression[4]: Snappy
+2021/03/13-23:55:15.869120 7f9c40c91a80 Options.compression[5]: Snappy
+2021/03/13-23:55:15.869120 7f9c40c91a80 Options.compression[6]: Snappy
+2021/03/13-23:55:15.869121 7f9c40c91a80 Options.bottommost_compression: Disabled
+2021/03/13-23:55:15.869122 7f9c40c91a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:55:15.869122 7f9c40c91a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:55:15.869123 7f9c40c91a80 Options.num_levels: 7
+2021/03/13-23:55:15.869124 7f9c40c91a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:55:15.869124 7f9c40c91a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:55:15.869125 7f9c40c91a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:55:15.869125 7f9c40c91a80 Options.compression_opts.level: -1
+2021/03/13-23:55:15.869126 7f9c40c91a80 Options.compression_opts.strategy: 0
+2021/03/13-23:55:15.869126 7f9c40c91a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:55:15.869127 7f9c40c91a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:55:15.869128 7f9c40c91a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:55:15.869128 7f9c40c91a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:55:15.869129 7f9c40c91a80 Options.target_file_size_base: 67108864
+2021/03/13-23:55:15.869129 7f9c40c91a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:55:15.869130 7f9c40c91a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:55:15.869130 7f9c40c91a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:55:15.869131 7f9c40c91a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:55:15.869133 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:55:15.869140 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:55:15.869141 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:55:15.869141 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:55:15.869142 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:55:15.869143 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:55:15.869143 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:55:15.869144 7f9c40c91a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:55:15.869144 7f9c40c91a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:55:15.869145 7f9c40c91a80 Options.arena_block_size: 16777216
+2021/03/13-23:55:15.869145 7f9c40c91a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:55:15.869146 7f9c40c91a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:55:15.869147 7f9c40c91a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:55:15.869147 7f9c40c91a80 Options.disable_auto_compactions: 0
+2021/03/13-23:55:15.869149 7f9c40c91a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:55:15.869149 7f9c40c91a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:55:15.869150 7f9c40c91a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:55:15.869151 7f9c40c91a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:55:15.869151 7f9c40c91a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:55:15.869152 7f9c40c91a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:55:15.869152 7f9c40c91a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:55:15.869153 7f9c40c91a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:55:15.869154 7f9c40c91a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:55:15.869154 7f9c40c91a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:55:15.869155 7f9c40c91a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:55:15.869156 7f9c40c91a80 Options.table_properties_collectors:
+2021/03/13-23:55:15.869156 7f9c40c91a80 Options.inplace_update_support: 0
+2021/03/13-23:55:15.869157 7f9c40c91a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:55:15.869157 7f9c40c91a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:55:15.869158 7f9c40c91a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:55:15.869159 7f9c40c91a80 Options.bloom_locality: 0
+2021/03/13-23:55:15.869159 7f9c40c91a80 Options.max_successive_merges: 0
+2021/03/13-23:55:15.869160 7f9c40c91a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:55:15.869160 7f9c40c91a80 Options.paranoid_file_checks: 0
+2021/03/13-23:55:15.869161 7f9c40c91a80 Options.force_consistency_checks: 0
+2021/03/13-23:55:15.869161 7f9c40c91a80 Options.report_bg_io_stats: 0
+2021/03/13-23:55:15.869561 7f9c40c91a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:55:15.869563 7f9c40c91a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:55:15.869646 7f9c40c91a80 EVENT_LOG_v1 {"time_micros": 1615676115869634, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:55:15.869651 7f9c40c91a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:55:16.533846 7f9c40c91a80 EVENT_LOG_v1 {"time_micros": 1615676116533843, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615676816179160 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676816179160
new file mode 100644
index 0000000..50fd07f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676816179160
@@ -0,0 +1,186 @@
+2021/03/13-23:55:16.546472 7f9c40c91a80 RocksDB version: 5.11.3
+2021/03/13-23:55:16.546532 7f9c40c91a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/13-23:55:16.546534 7f9c40c91a80 Compile date Mar 13 2021
+2021/03/13-23:55:16.546536 7f9c40c91a80 DB SUMMARY
+2021/03/13-23:55:16.546602 7f9c40c91a80 CURRENT file: CURRENT
+2021/03/13-23:55:16.546603 7f9c40c91a80 IDENTITY file: IDENTITY
+2021/03/13-23:55:16.546609 7f9c40c91a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/13-23:55:16.546611 7f9c40c91a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/13-23:55:16.546611 7f9c40c91a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/13-23:55:16.546615 7f9c40c91a80 Options.error_if_exists: 0
+2021/03/13-23:55:16.546616 7f9c40c91a80 Options.create_if_missing: 1
+2021/03/13-23:55:16.546617 7f9c40c91a80 Options.paranoid_checks: 1
+2021/03/13-23:55:16.546617 7f9c40c91a80 Options.env: 0x7f9c4164b080
+2021/03/13-23:55:16.546618 7f9c40c91a80 Options.info_log: 0x1beeca0
+2021/03/13-23:55:16.546618 7f9c40c91a80 Options.max_file_opening_threads: 16
+2021/03/13-23:55:16.546619 7f9c40c91a80 Options.statistics: (nil)
+2021/03/13-23:55:16.546620 7f9c40c91a80 Options.use_fsync: 0
+2021/03/13-23:55:16.546620 7f9c40c91a80 Options.max_log_file_size: 0
+2021/03/13-23:55:16.546621 7f9c40c91a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/13-23:55:16.546621 7f9c40c91a80 Options.log_file_time_to_roll: 0
+2021/03/13-23:55:16.546622 7f9c40c91a80 Options.keep_log_file_num: 1000
+2021/03/13-23:55:16.546623 7f9c40c91a80 Options.recycle_log_file_num: 0
+2021/03/13-23:55:16.546623 7f9c40c91a80 Options.allow_fallocate: 1
+2021/03/13-23:55:16.546624 7f9c40c91a80 Options.allow_mmap_reads: 0
+2021/03/13-23:55:16.546624 7f9c40c91a80 Options.allow_mmap_writes: 0
+2021/03/13-23:55:16.546625 7f9c40c91a80 Options.use_direct_reads: 0
+2021/03/13-23:55:16.546625 7f9c40c91a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/13-23:55:16.546626 7f9c40c91a80 Options.create_missing_column_families: 0
+2021/03/13-23:55:16.546626 7f9c40c91a80 Options.db_log_dir:
+2021/03/13-23:55:16.546627 7f9c40c91a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/13-23:55:16.546628 7f9c40c91a80 Options.table_cache_numshardbits: 6
+2021/03/13-23:55:16.546628 7f9c40c91a80 Options.max_subcompactions: 1
+2021/03/13-23:55:16.546629 7f9c40c91a80 Options.max_background_flushes: -1
+2021/03/13-23:55:16.546629 7f9c40c91a80 Options.WAL_ttl_seconds: 0
+2021/03/13-23:55:16.546630 7f9c40c91a80 Options.WAL_size_limit_MB: 0
+2021/03/13-23:55:16.546630 7f9c40c91a80 Options.manifest_preallocation_size: 4194304
+2021/03/13-23:55:16.546631 7f9c40c91a80 Options.is_fd_close_on_exec: 1
+2021/03/13-23:55:16.546632 7f9c40c91a80 Options.advise_random_on_open: 1
+2021/03/13-23:55:16.546632 7f9c40c91a80 Options.db_write_buffer_size: 0
+2021/03/13-23:55:16.546633 7f9c40c91a80 Options.write_buffer_manager: 0x1bd6b90
+2021/03/13-23:55:16.546633 7f9c40c91a80 Options.access_hint_on_compaction_start: 1
+2021/03/13-23:55:16.546634 7f9c40c91a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/13-23:55:16.546634 7f9c40c91a80 Options.random_access_max_buffer_size: 1048576
+2021/03/13-23:55:16.546635 7f9c40c91a80 Options.use_adaptive_mutex: 0
+2021/03/13-23:55:16.546636 7f9c40c91a80 Options.rate_limiter: (nil)
+2021/03/13-23:55:16.546637 7f9c40c91a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/13-23:55:16.546644 7f9c40c91a80 Options.wal_recovery_mode: 2
+2021/03/13-23:55:16.546645 7f9c40c91a80 Options.enable_thread_tracking: 0
+2021/03/13-23:55:16.546646 7f9c40c91a80 Options.enable_pipelined_write: 0
+2021/03/13-23:55:16.546646 7f9c40c91a80 Options.allow_concurrent_memtable_write: 1
+2021/03/13-23:55:16.546647 7f9c40c91a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/13-23:55:16.546647 7f9c40c91a80 Options.write_thread_max_yield_usec: 100
+2021/03/13-23:55:16.546648 7f9c40c91a80 Options.write_thread_slow_yield_usec: 3
+2021/03/13-23:55:16.546648 7f9c40c91a80 Options.row_cache: None
+2021/03/13-23:55:16.546649 7f9c40c91a80 Options.wal_filter: None
+2021/03/13-23:55:16.546650 7f9c40c91a80 Options.avoid_flush_during_recovery: 0
+2021/03/13-23:55:16.546650 7f9c40c91a80 Options.allow_ingest_behind: 0
+2021/03/13-23:55:16.546651 7f9c40c91a80 Options.preserve_deletes: 0
+2021/03/13-23:55:16.546651 7f9c40c91a80 Options.two_write_queues: 0
+2021/03/13-23:55:16.546652 7f9c40c91a80 Options.manual_wal_flush: 0
+2021/03/13-23:55:16.546653 7f9c40c91a80 Options.max_background_jobs: 16
+2021/03/13-23:55:16.546654 7f9c40c91a80 Options.max_background_compactions: -1
+2021/03/13-23:55:16.546654 7f9c40c91a80 Options.avoid_flush_during_shutdown: 0
+2021/03/13-23:55:16.546655 7f9c40c91a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/13-23:55:16.546655 7f9c40c91a80 Options.delayed_write_rate : 16777216
+2021/03/13-23:55:16.546656 7f9c40c91a80 Options.max_total_wal_size: 0
+2021/03/13-23:55:16.546656 7f9c40c91a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/13-23:55:16.546657 7f9c40c91a80 Options.stats_dump_period_sec: 600
+2021/03/13-23:55:16.546658 7f9c40c91a80 Options.max_open_files: -1
+2021/03/13-23:55:16.546658 7f9c40c91a80 Options.bytes_per_sync: 0
+2021/03/13-23:55:16.546659 7f9c40c91a80 Options.wal_bytes_per_sync: 0
+2021/03/13-23:55:16.546659 7f9c40c91a80 Options.compaction_readahead_size: 0
+2021/03/13-23:55:16.546660 7f9c40c91a80 Compression algorithms supported:
+2021/03/13-23:55:16.546660 7f9c40c91a80 Snappy supported: 1
+2021/03/13-23:55:16.546661 7f9c40c91a80 Zlib supported: 1
+2021/03/13-23:55:16.546662 7f9c40c91a80 Bzip supported: 1
+2021/03/13-23:55:16.546662 7f9c40c91a80 LZ4 supported: 1
+2021/03/13-23:55:16.546663 7f9c40c91a80 ZSTDNotFinal supported: 1
+2021/03/13-23:55:16.546666 7f9c40c91a80 ZSTD supported: 1
+2021/03/13-23:55:16.546669 7f9c40c91a80 Fast CRC32 supported: Supported on x86
+2021/03/13-23:55:16.546671 7f9c40c91a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/13-23:55:16.546759 7f9c40c91a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/13-23:55:16.546812 7f9c40c91a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/13-23:55:16.546814 7f9c40c91a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/13-23:55:16.546815 7f9c40c91a80 Options.merge_operator: UInt64AddOperator
+2021/03/13-23:55:16.546815 7f9c40c91a80 Options.compaction_filter: None
+2021/03/13-23:55:16.546816 7f9c40c91a80 Options.compaction_filter_factory: None
+2021/03/13-23:55:16.546816 7f9c40c91a80 Options.memtable_factory: SkipListFactory
+2021/03/13-23:55:16.546817 7f9c40c91a80 Options.table_factory: BlockBasedTable
+2021/03/13-23:55:16.546831 7f9c40c91a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1be6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1bcbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/13-23:55:16.546832 7f9c40c91a80 Options.write_buffer_size: 134217728
+2021/03/13-23:55:16.546832 7f9c40c91a80 Options.max_write_buffer_number: 6
+2021/03/13-23:55:16.546833 7f9c40c91a80 Options.compression[0]: NoCompression
+2021/03/13-23:55:16.546834 7f9c40c91a80 Options.compression[1]: NoCompression
+2021/03/13-23:55:16.546834 7f9c40c91a80 Options.compression[2]: Snappy
+2021/03/13-23:55:16.546835 7f9c40c91a80 Options.compression[3]: Snappy
+2021/03/13-23:55:16.546836 7f9c40c91a80 Options.compression[4]: Snappy
+2021/03/13-23:55:16.546836 7f9c40c91a80 Options.compression[5]: Snappy
+2021/03/13-23:55:16.546837 7f9c40c91a80 Options.compression[6]: Snappy
+2021/03/13-23:55:16.546837 7f9c40c91a80 Options.bottommost_compression: Disabled
+2021/03/13-23:55:16.546838 7f9c40c91a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/13-23:55:16.546839 7f9c40c91a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/13-23:55:16.546839 7f9c40c91a80 Options.num_levels: 7
+2021/03/13-23:55:16.546840 7f9c40c91a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/13-23:55:16.546841 7f9c40c91a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/13-23:55:16.546841 7f9c40c91a80 Options.compression_opts.window_bits: -14
+2021/03/13-23:55:16.546842 7f9c40c91a80 Options.compression_opts.level: -1
+2021/03/13-23:55:16.546842 7f9c40c91a80 Options.compression_opts.strategy: 0
+2021/03/13-23:55:16.546843 7f9c40c91a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/13-23:55:16.546843 7f9c40c91a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/13-23:55:16.546844 7f9c40c91a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/13-23:55:16.546845 7f9c40c91a80 Options.level0_stop_writes_trigger: 36
+2021/03/13-23:55:16.546845 7f9c40c91a80 Options.target_file_size_base: 67108864
+2021/03/13-23:55:16.546846 7f9c40c91a80 Options.target_file_size_multiplier: 1
+2021/03/13-23:55:16.546846 7f9c40c91a80 Options.max_bytes_for_level_base: 536870912
+2021/03/13-23:55:16.546847 7f9c40c91a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/13-23:55:16.546847 7f9c40c91a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/13-23:55:16.546849 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/13-23:55:16.546856 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/13-23:55:16.546857 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/13-23:55:16.546858 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/13-23:55:16.546858 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/13-23:55:16.546859 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/13-23:55:16.546859 7f9c40c91a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/13-23:55:16.546860 7f9c40c91a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/13-23:55:16.546860 7f9c40c91a80 Options.max_compaction_bytes: 1677721600
+2021/03/13-23:55:16.546861 7f9c40c91a80 Options.arena_block_size: 16777216
+2021/03/13-23:55:16.546862 7f9c40c91a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/13-23:55:16.546862 7f9c40c91a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/13-23:55:16.546863 7f9c40c91a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/13-23:55:16.546863 7f9c40c91a80 Options.disable_auto_compactions: 0
+2021/03/13-23:55:16.546865 7f9c40c91a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/13-23:55:16.546866 7f9c40c91a80 Options.compaction_pri: kByCompensatedSize
+2021/03/13-23:55:16.546866 7f9c40c91a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/13-23:55:16.546867 7f9c40c91a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/13-23:55:16.546867 7f9c40c91a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/13-23:55:16.546868 7f9c40c91a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/13-23:55:16.546869 7f9c40c91a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/13-23:55:16.546869 7f9c40c91a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/13-23:55:16.546870 7f9c40c91a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/13-23:55:16.546871 7f9c40c91a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/13-23:55:16.546871 7f9c40c91a80 Options.compaction_options_fifo.ttl: 0
+2021/03/13-23:55:16.546872 7f9c40c91a80 Options.table_properties_collectors:
+2021/03/13-23:55:16.546872 7f9c40c91a80 Options.inplace_update_support: 0
+2021/03/13-23:55:16.546873 7f9c40c91a80 Options.inplace_update_num_locks: 10000
+2021/03/13-23:55:16.546873 7f9c40c91a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/13-23:55:16.546874 7f9c40c91a80 Options.memtable_huge_page_size: 0
+2021/03/13-23:55:16.546875 7f9c40c91a80 Options.bloom_locality: 0
+2021/03/13-23:55:16.546875 7f9c40c91a80 Options.max_successive_merges: 0
+2021/03/13-23:55:16.546876 7f9c40c91a80 Options.optimize_filters_for_hits: 0
+2021/03/13-23:55:16.546876 7f9c40c91a80 Options.paranoid_file_checks: 0
+2021/03/13-23:55:16.546877 7f9c40c91a80 Options.force_consistency_checks: 0
+2021/03/13-23:55:16.546877 7f9c40c91a80 Options.report_bg_io_stats: 0
+2021/03/13-23:55:16.547320 7f9c40c91a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/13-23:55:16.547323 7f9c40c91a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/13-23:55:16.547406 7f9c40c91a80 EVENT_LOG_v1 {"time_micros": 1615676116547394, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/13-23:55:16.547411 7f9c40c91a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/13-23:55:17.208055 7f9c40c91a80 EVENT_LOG_v1 {"time_micros": 1615676117208052, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615676816875533 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676816875533
new file mode 100644
index 0000000..4f06a5d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676816875533
@@ -0,0 +1,186 @@
+2021/03/14-00:06:56.179587 7f7b078bea80 RocksDB version: 5.11.3
+2021/03/14-00:06:56.179672 7f7b078bea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:06:56.179674 7f7b078bea80 Compile date Mar 13 2021
+2021/03/14-00:06:56.179677 7f7b078bea80 DB SUMMARY
+2021/03/14-00:06:56.179758 7f7b078bea80 CURRENT file: CURRENT
+2021/03/14-00:06:56.179759 7f7b078bea80 IDENTITY file: IDENTITY
+2021/03/14-00:06:56.179767 7f7b078bea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:06:56.179768 7f7b078bea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:06:56.179769 7f7b078bea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:06:56.179774 7f7b078bea80 Options.error_if_exists: 0
+2021/03/14-00:06:56.179775 7f7b078bea80 Options.create_if_missing: 1
+2021/03/14-00:06:56.179776 7f7b078bea80 Options.paranoid_checks: 1
+2021/03/14-00:06:56.179776 7f7b078bea80 Options.env: 0x7f7b08278080
+2021/03/14-00:06:56.179777 7f7b078bea80 Options.info_log: 0x2af2ca0
+2021/03/14-00:06:56.179778 7f7b078bea80 Options.max_file_opening_threads: 16
+2021/03/14-00:06:56.179779 7f7b078bea80 Options.statistics: (nil)
+2021/03/14-00:06:56.179779 7f7b078bea80 Options.use_fsync: 0
+2021/03/14-00:06:56.179780 7f7b078bea80 Options.max_log_file_size: 0
+2021/03/14-00:06:56.179781 7f7b078bea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:06:56.179782 7f7b078bea80 Options.log_file_time_to_roll: 0
+2021/03/14-00:06:56.179782 7f7b078bea80 Options.keep_log_file_num: 1000
+2021/03/14-00:06:56.179783 7f7b078bea80 Options.recycle_log_file_num: 0
+2021/03/14-00:06:56.179784 7f7b078bea80 Options.allow_fallocate: 1
+2021/03/14-00:06:56.179784 7f7b078bea80 Options.allow_mmap_reads: 0
+2021/03/14-00:06:56.179785 7f7b078bea80 Options.allow_mmap_writes: 0
+2021/03/14-00:06:56.179786 7f7b078bea80 Options.use_direct_reads: 0
+2021/03/14-00:06:56.179786 7f7b078bea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:06:56.179787 7f7b078bea80 Options.create_missing_column_families: 0
+2021/03/14-00:06:56.179788 7f7b078bea80 Options.db_log_dir:
+2021/03/14-00:06:56.179788 7f7b078bea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:06:56.179789 7f7b078bea80 Options.table_cache_numshardbits: 6
+2021/03/14-00:06:56.179803 7f7b078bea80 Options.max_subcompactions: 1
+2021/03/14-00:06:56.179804 7f7b078bea80 Options.max_background_flushes: -1
+2021/03/14-00:06:56.179805 7f7b078bea80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:06:56.179805 7f7b078bea80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:06:56.179806 7f7b078bea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:06:56.179807 7f7b078bea80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:06:56.179807 7f7b078bea80 Options.advise_random_on_open: 1
+2021/03/14-00:06:56.179808 7f7b078bea80 Options.db_write_buffer_size: 0
+2021/03/14-00:06:56.179809 7f7b078bea80 Options.write_buffer_manager: 0x2adab90
+2021/03/14-00:06:56.179809 7f7b078bea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:06:56.179810 7f7b078bea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:06:56.179811 7f7b078bea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:06:56.179811 7f7b078bea80 Options.use_adaptive_mutex: 0
+2021/03/14-00:06:56.179812 7f7b078bea80 Options.rate_limiter: (nil)
+2021/03/14-00:06:56.179814 7f7b078bea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:06:56.179822 7f7b078bea80 Options.wal_recovery_mode: 2
+2021/03/14-00:06:56.179823 7f7b078bea80 Options.enable_thread_tracking: 0
+2021/03/14-00:06:56.179824 7f7b078bea80 Options.enable_pipelined_write: 0
+2021/03/14-00:06:56.179825 7f7b078bea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:06:56.179825 7f7b078bea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:06:56.179826 7f7b078bea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:06:56.179827 7f7b078bea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:06:56.179827 7f7b078bea80 Options.row_cache: None
+2021/03/14-00:06:56.179828 7f7b078bea80 Options.wal_filter: None
+2021/03/14-00:06:56.179829 7f7b078bea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:06:56.179829 7f7b078bea80 Options.allow_ingest_behind: 0
+2021/03/14-00:06:56.179830 7f7b078bea80 Options.preserve_deletes: 0
+2021/03/14-00:06:56.179831 7f7b078bea80 Options.two_write_queues: 0
+2021/03/14-00:06:56.179831 7f7b078bea80 Options.manual_wal_flush: 0
+2021/03/14-00:06:56.179833 7f7b078bea80 Options.max_background_jobs: 16
+2021/03/14-00:06:56.179834 7f7b078bea80 Options.max_background_compactions: -1
+2021/03/14-00:06:56.179834 7f7b078bea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:06:56.179835 7f7b078bea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:06:56.179835 7f7b078bea80 Options.delayed_write_rate : 16777216
+2021/03/14-00:06:56.179836 7f7b078bea80 Options.max_total_wal_size: 0
+2021/03/14-00:06:56.179837 7f7b078bea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:06:56.179838 7f7b078bea80 Options.stats_dump_period_sec: 600
+2021/03/14-00:06:56.179838 7f7b078bea80 Options.max_open_files: -1
+2021/03/14-00:06:56.179839 7f7b078bea80 Options.bytes_per_sync: 0
+2021/03/14-00:06:56.179840 7f7b078bea80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:06:56.179840 7f7b078bea80 Options.compaction_readahead_size: 0
+2021/03/14-00:06:56.179841 7f7b078bea80 Compression algorithms supported:
+2021/03/14-00:06:56.179842 7f7b078bea80 Snappy supported: 1
+2021/03/14-00:06:56.179842 7f7b078bea80 Zlib supported: 1
+2021/03/14-00:06:56.179843 7f7b078bea80 Bzip supported: 1
+2021/03/14-00:06:56.179844 7f7b078bea80 LZ4 supported: 1
+2021/03/14-00:06:56.179844 7f7b078bea80 ZSTDNotFinal supported: 1
+2021/03/14-00:06:56.179850 7f7b078bea80 ZSTD supported: 1
+2021/03/14-00:06:56.179855 7f7b078bea80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:06:56.179857 7f7b078bea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:06:56.180004 7f7b078bea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:06:56.180073 7f7b078bea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:06:56.180076 7f7b078bea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:06:56.180076 7f7b078bea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:06:56.180077 7f7b078bea80 Options.compaction_filter: None
+2021/03/14-00:06:56.180078 7f7b078bea80 Options.compaction_filter_factory: None
+2021/03/14-00:06:56.180079 7f7b078bea80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:06:56.180080 7f7b078bea80 Options.table_factory: BlockBasedTable
+2021/03/14-00:06:56.180096 7f7b078bea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2aea520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2acfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:06:56.180097 7f7b078bea80 Options.write_buffer_size: 134217728
+2021/03/14-00:06:56.180098 7f7b078bea80 Options.max_write_buffer_number: 6
+2021/03/14-00:06:56.180098 7f7b078bea80 Options.compression[0]: NoCompression
+2021/03/14-00:06:56.180099 7f7b078bea80 Options.compression[1]: NoCompression
+2021/03/14-00:06:56.180100 7f7b078bea80 Options.compression[2]: Snappy
+2021/03/14-00:06:56.180101 7f7b078bea80 Options.compression[3]: Snappy
+2021/03/14-00:06:56.180101 7f7b078bea80 Options.compression[4]: Snappy
+2021/03/14-00:06:56.180102 7f7b078bea80 Options.compression[5]: Snappy
+2021/03/14-00:06:56.180103 7f7b078bea80 Options.compression[6]: Snappy
+2021/03/14-00:06:56.180103 7f7b078bea80 Options.bottommost_compression: Disabled
+2021/03/14-00:06:56.180104 7f7b078bea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:06:56.180105 7f7b078bea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:06:56.180106 7f7b078bea80 Options.num_levels: 7
+2021/03/14-00:06:56.180106 7f7b078bea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:06:56.180107 7f7b078bea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:06:56.180108 7f7b078bea80 Options.compression_opts.window_bits: -14
+2021/03/14-00:06:56.180108 7f7b078bea80 Options.compression_opts.level: -1
+2021/03/14-00:06:56.180109 7f7b078bea80 Options.compression_opts.strategy: 0
+2021/03/14-00:06:56.180110 7f7b078bea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:06:56.180110 7f7b078bea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:06:56.180111 7f7b078bea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:06:56.180112 7f7b078bea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:06:56.180112 7f7b078bea80 Options.target_file_size_base: 67108864
+2021/03/14-00:06:56.180113 7f7b078bea80 Options.target_file_size_multiplier: 1
+2021/03/14-00:06:56.180114 7f7b078bea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:06:56.180114 7f7b078bea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:06:56.180115 7f7b078bea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:06:56.180117 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:06:56.180126 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:06:56.180127 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:06:56.180128 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:06:56.180128 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:06:56.180129 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:06:56.180130 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:06:56.180130 7f7b078bea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:06:56.180131 7f7b078bea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:06:56.180132 7f7b078bea80 Options.arena_block_size: 16777216
+2021/03/14-00:06:56.180132 7f7b078bea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:06:56.180133 7f7b078bea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:06:56.180134 7f7b078bea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:06:56.180134 7f7b078bea80 Options.disable_auto_compactions: 0
+2021/03/14-00:06:56.180136 7f7b078bea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:06:56.180137 7f7b078bea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:06:56.180138 7f7b078bea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:06:56.180139 7f7b078bea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:06:56.180139 7f7b078bea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:06:56.180140 7f7b078bea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:06:56.180141 7f7b078bea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:06:56.180142 7f7b078bea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:06:56.180143 7f7b078bea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:06:56.180143 7f7b078bea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:06:56.180144 7f7b078bea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:06:56.180144 7f7b078bea80 Options.table_properties_collectors:
+2021/03/14-00:06:56.180145 7f7b078bea80 Options.inplace_update_support: 0
+2021/03/14-00:06:56.180146 7f7b078bea80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:06:56.180146 7f7b078bea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:06:56.180147 7f7b078bea80 Options.memtable_huge_page_size: 0
+2021/03/14-00:06:56.180148 7f7b078bea80 Options.bloom_locality: 0
+2021/03/14-00:06:56.180149 7f7b078bea80 Options.max_successive_merges: 0
+2021/03/14-00:06:56.180149 7f7b078bea80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:06:56.180150 7f7b078bea80 Options.paranoid_file_checks: 0
+2021/03/14-00:06:56.180151 7f7b078bea80 Options.force_consistency_checks: 0
+2021/03/14-00:06:56.180151 7f7b078bea80 Options.report_bg_io_stats: 0
+2021/03/14-00:06:56.180630 7f7b078bea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:06:56.180633 7f7b078bea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:06:56.180747 7f7b078bea80 EVENT_LOG_v1 {"time_micros": 1615676816180732, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:06:56.180753 7f7b078bea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:06:56.863432 7f7b078bea80 EVENT_LOG_v1 {"time_micros": 1615676816863429, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615676817567790 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676817567790
new file mode 100644
index 0000000..7f9e816
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676817567790
@@ -0,0 +1,186 @@
+2021/03/14-00:06:56.875846 7f7b078bea80 RocksDB version: 5.11.3
+2021/03/14-00:06:56.875905 7f7b078bea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:06:56.875906 7f7b078bea80 Compile date Mar 13 2021
+2021/03/14-00:06:56.875909 7f7b078bea80 DB SUMMARY
+2021/03/14-00:06:56.875974 7f7b078bea80 CURRENT file: CURRENT
+2021/03/14-00:06:56.875976 7f7b078bea80 IDENTITY file: IDENTITY
+2021/03/14-00:06:56.875982 7f7b078bea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:06:56.875983 7f7b078bea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:06:56.875984 7f7b078bea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:06:56.875988 7f7b078bea80 Options.error_if_exists: 0
+2021/03/14-00:06:56.875989 7f7b078bea80 Options.create_if_missing: 1
+2021/03/14-00:06:56.875990 7f7b078bea80 Options.paranoid_checks: 1
+2021/03/14-00:06:56.875990 7f7b078bea80 Options.env: 0x7f7b08278080
+2021/03/14-00:06:56.875991 7f7b078bea80 Options.info_log: 0x2af2ca0
+2021/03/14-00:06:56.875991 7f7b078bea80 Options.max_file_opening_threads: 16
+2021/03/14-00:06:56.875992 7f7b078bea80 Options.statistics: (nil)
+2021/03/14-00:06:56.875993 7f7b078bea80 Options.use_fsync: 0
+2021/03/14-00:06:56.875993 7f7b078bea80 Options.max_log_file_size: 0
+2021/03/14-00:06:56.875994 7f7b078bea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:06:56.875995 7f7b078bea80 Options.log_file_time_to_roll: 0
+2021/03/14-00:06:56.875995 7f7b078bea80 Options.keep_log_file_num: 1000
+2021/03/14-00:06:56.875996 7f7b078bea80 Options.recycle_log_file_num: 0
+2021/03/14-00:06:56.875997 7f7b078bea80 Options.allow_fallocate: 1
+2021/03/14-00:06:56.875997 7f7b078bea80 Options.allow_mmap_reads: 0
+2021/03/14-00:06:56.875998 7f7b078bea80 Options.allow_mmap_writes: 0
+2021/03/14-00:06:56.875998 7f7b078bea80 Options.use_direct_reads: 0
+2021/03/14-00:06:56.875999 7f7b078bea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:06:56.875999 7f7b078bea80 Options.create_missing_column_families: 0
+2021/03/14-00:06:56.876000 7f7b078bea80 Options.db_log_dir:
+2021/03/14-00:06:56.876001 7f7b078bea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:06:56.876001 7f7b078bea80 Options.table_cache_numshardbits: 6
+2021/03/14-00:06:56.876002 7f7b078bea80 Options.max_subcompactions: 1
+2021/03/14-00:06:56.876002 7f7b078bea80 Options.max_background_flushes: -1
+2021/03/14-00:06:56.876003 7f7b078bea80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:06:56.876003 7f7b078bea80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:06:56.876004 7f7b078bea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:06:56.876005 7f7b078bea80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:06:56.876005 7f7b078bea80 Options.advise_random_on_open: 1
+2021/03/14-00:06:56.876006 7f7b078bea80 Options.db_write_buffer_size: 0
+2021/03/14-00:06:56.876006 7f7b078bea80 Options.write_buffer_manager: 0x2adab90
+2021/03/14-00:06:56.876007 7f7b078bea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:06:56.876007 7f7b078bea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:06:56.876008 7f7b078bea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:06:56.876009 7f7b078bea80 Options.use_adaptive_mutex: 0
+2021/03/14-00:06:56.876009 7f7b078bea80 Options.rate_limiter: (nil)
+2021/03/14-00:06:56.876011 7f7b078bea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:06:56.876018 7f7b078bea80 Options.wal_recovery_mode: 2
+2021/03/14-00:06:56.876019 7f7b078bea80 Options.enable_thread_tracking: 0
+2021/03/14-00:06:56.876019 7f7b078bea80 Options.enable_pipelined_write: 0
+2021/03/14-00:06:56.876020 7f7b078bea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:06:56.876021 7f7b078bea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:06:56.876021 7f7b078bea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:06:56.876022 7f7b078bea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:06:56.876022 7f7b078bea80 Options.row_cache: None
+2021/03/14-00:06:56.876023 7f7b078bea80 Options.wal_filter: None
+2021/03/14-00:06:56.876024 7f7b078bea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:06:56.876024 7f7b078bea80 Options.allow_ingest_behind: 0
+2021/03/14-00:06:56.876025 7f7b078bea80 Options.preserve_deletes: 0
+2021/03/14-00:06:56.876025 7f7b078bea80 Options.two_write_queues: 0
+2021/03/14-00:06:56.876026 7f7b078bea80 Options.manual_wal_flush: 0
+2021/03/14-00:06:56.876027 7f7b078bea80 Options.max_background_jobs: 16
+2021/03/14-00:06:56.876028 7f7b078bea80 Options.max_background_compactions: -1
+2021/03/14-00:06:56.876028 7f7b078bea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:06:56.876029 7f7b078bea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:06:56.876029 7f7b078bea80 Options.delayed_write_rate : 16777216
+2021/03/14-00:06:56.876030 7f7b078bea80 Options.max_total_wal_size: 0
+2021/03/14-00:06:56.876030 7f7b078bea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:06:56.876031 7f7b078bea80 Options.stats_dump_period_sec: 600
+2021/03/14-00:06:56.876032 7f7b078bea80 Options.max_open_files: -1
+2021/03/14-00:06:56.876032 7f7b078bea80 Options.bytes_per_sync: 0
+2021/03/14-00:06:56.876033 7f7b078bea80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:06:56.876033 7f7b078bea80 Options.compaction_readahead_size: 0
+2021/03/14-00:06:56.876034 7f7b078bea80 Compression algorithms supported:
+2021/03/14-00:06:56.876034 7f7b078bea80 Snappy supported: 1
+2021/03/14-00:06:56.876035 7f7b078bea80 Zlib supported: 1
+2021/03/14-00:06:56.876036 7f7b078bea80 Bzip supported: 1
+2021/03/14-00:06:56.876036 7f7b078bea80 LZ4 supported: 1
+2021/03/14-00:06:56.876037 7f7b078bea80 ZSTDNotFinal supported: 1
+2021/03/14-00:06:56.876041 7f7b078bea80 ZSTD supported: 1
+2021/03/14-00:06:56.876044 7f7b078bea80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:06:56.876045 7f7b078bea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:06:56.876140 7f7b078bea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:06:56.876193 7f7b078bea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:06:56.876194 7f7b078bea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:06:56.876195 7f7b078bea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:06:56.876196 7f7b078bea80 Options.compaction_filter: None
+2021/03/14-00:06:56.876197 7f7b078bea80 Options.compaction_filter_factory: None
+2021/03/14-00:06:56.876197 7f7b078bea80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:06:56.876198 7f7b078bea80 Options.table_factory: BlockBasedTable
+2021/03/14-00:06:56.876211 7f7b078bea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2aea520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2acfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:06:56.876212 7f7b078bea80 Options.write_buffer_size: 134217728
+2021/03/14-00:06:56.876212 7f7b078bea80 Options.max_write_buffer_number: 6
+2021/03/14-00:06:56.876213 7f7b078bea80 Options.compression[0]: NoCompression
+2021/03/14-00:06:56.876214 7f7b078bea80 Options.compression[1]: NoCompression
+2021/03/14-00:06:56.876214 7f7b078bea80 Options.compression[2]: Snappy
+2021/03/14-00:06:56.876215 7f7b078bea80 Options.compression[3]: Snappy
+2021/03/14-00:06:56.876216 7f7b078bea80 Options.compression[4]: Snappy
+2021/03/14-00:06:56.876216 7f7b078bea80 Options.compression[5]: Snappy
+2021/03/14-00:06:56.876217 7f7b078bea80 Options.compression[6]: Snappy
+2021/03/14-00:06:56.876217 7f7b078bea80 Options.bottommost_compression: Disabled
+2021/03/14-00:06:56.876218 7f7b078bea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:06:56.876219 7f7b078bea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:06:56.876219 7f7b078bea80 Options.num_levels: 7
+2021/03/14-00:06:56.876220 7f7b078bea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:06:56.876220 7f7b078bea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:06:56.876221 7f7b078bea80 Options.compression_opts.window_bits: -14
+2021/03/14-00:06:56.876222 7f7b078bea80 Options.compression_opts.level: -1
+2021/03/14-00:06:56.876222 7f7b078bea80 Options.compression_opts.strategy: 0
+2021/03/14-00:06:56.876223 7f7b078bea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:06:56.876223 7f7b078bea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:06:56.876224 7f7b078bea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:06:56.876225 7f7b078bea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:06:56.876225 7f7b078bea80 Options.target_file_size_base: 67108864
+2021/03/14-00:06:56.876226 7f7b078bea80 Options.target_file_size_multiplier: 1
+2021/03/14-00:06:56.876226 7f7b078bea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:06:56.876227 7f7b078bea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:06:56.876228 7f7b078bea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:06:56.876229 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:06:56.876237 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:06:56.876243 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:06:56.876244 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:06:56.876245 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:06:56.876246 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:06:56.876246 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:06:56.876247 7f7b078bea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:06:56.876248 7f7b078bea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:06:56.876249 7f7b078bea80 Options.arena_block_size: 16777216
+2021/03/14-00:06:56.876250 7f7b078bea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:06:56.876251 7f7b078bea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:06:56.876252 7f7b078bea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:06:56.876252 7f7b078bea80 Options.disable_auto_compactions: 0
+2021/03/14-00:06:56.876254 7f7b078bea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:06:56.876255 7f7b078bea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:06:56.876255 7f7b078bea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:06:56.876256 7f7b078bea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:06:56.876257 7f7b078bea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:06:56.876257 7f7b078bea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:06:56.876258 7f7b078bea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:06:56.876259 7f7b078bea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:06:56.876260 7f7b078bea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:06:56.876260 7f7b078bea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:06:56.876261 7f7b078bea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:06:56.876261 7f7b078bea80 Options.table_properties_collectors:
+2021/03/14-00:06:56.876262 7f7b078bea80 Options.inplace_update_support: 0
+2021/03/14-00:06:56.876263 7f7b078bea80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:06:56.876263 7f7b078bea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:06:56.876264 7f7b078bea80 Options.memtable_huge_page_size: 0
+2021/03/14-00:06:56.876265 7f7b078bea80 Options.bloom_locality: 0
+2021/03/14-00:06:56.876265 7f7b078bea80 Options.max_successive_merges: 0
+2021/03/14-00:06:56.876266 7f7b078bea80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:06:56.876266 7f7b078bea80 Options.paranoid_file_checks: 0
+2021/03/14-00:06:56.876267 7f7b078bea80 Options.force_consistency_checks: 0
+2021/03/14-00:06:56.876267 7f7b078bea80 Options.report_bg_io_stats: 0
+2021/03/14-00:06:56.876646 7f7b078bea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:06:56.876649 7f7b078bea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:06:56.876734 7f7b078bea80 EVENT_LOG_v1 {"time_micros": 1615676816876724, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:06:56.876740 7f7b078bea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:06:57.555873 7f7b078bea80 EVENT_LOG_v1 {"time_micros": 1615676817555869, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615676818245399 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676818245399
new file mode 100644
index 0000000..75e28dc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615676818245399
@@ -0,0 +1,186 @@
+2021/03/14-00:06:57.568118 7f7b078bea80 RocksDB version: 5.11.3
+2021/03/14-00:06:57.568178 7f7b078bea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:06:57.568179 7f7b078bea80 Compile date Mar 13 2021
+2021/03/14-00:06:57.568182 7f7b078bea80 DB SUMMARY
+2021/03/14-00:06:57.568260 7f7b078bea80 CURRENT file: CURRENT
+2021/03/14-00:06:57.568262 7f7b078bea80 IDENTITY file: IDENTITY
+2021/03/14-00:06:57.568268 7f7b078bea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:06:57.568269 7f7b078bea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:06:57.568270 7f7b078bea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:06:57.568274 7f7b078bea80 Options.error_if_exists: 0
+2021/03/14-00:06:57.568275 7f7b078bea80 Options.create_if_missing: 1
+2021/03/14-00:06:57.568276 7f7b078bea80 Options.paranoid_checks: 1
+2021/03/14-00:06:57.568276 7f7b078bea80 Options.env: 0x7f7b08278080
+2021/03/14-00:06:57.568277 7f7b078bea80 Options.info_log: 0x2af2ca0
+2021/03/14-00:06:57.568278 7f7b078bea80 Options.max_file_opening_threads: 16
+2021/03/14-00:06:57.568278 7f7b078bea80 Options.statistics: (nil)
+2021/03/14-00:06:57.568279 7f7b078bea80 Options.use_fsync: 0
+2021/03/14-00:06:57.568280 7f7b078bea80 Options.max_log_file_size: 0
+2021/03/14-00:06:57.568280 7f7b078bea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:06:57.568281 7f7b078bea80 Options.log_file_time_to_roll: 0
+2021/03/14-00:06:57.568281 7f7b078bea80 Options.keep_log_file_num: 1000
+2021/03/14-00:06:57.568282 7f7b078bea80 Options.recycle_log_file_num: 0
+2021/03/14-00:06:57.568283 7f7b078bea80 Options.allow_fallocate: 1
+2021/03/14-00:06:57.568283 7f7b078bea80 Options.allow_mmap_reads: 0
+2021/03/14-00:06:57.568284 7f7b078bea80 Options.allow_mmap_writes: 0
+2021/03/14-00:06:57.568284 7f7b078bea80 Options.use_direct_reads: 0
+2021/03/14-00:06:57.568285 7f7b078bea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:06:57.568285 7f7b078bea80 Options.create_missing_column_families: 0
+2021/03/14-00:06:57.568286 7f7b078bea80 Options.db_log_dir:
+2021/03/14-00:06:57.568287 7f7b078bea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:06:57.568287 7f7b078bea80 Options.table_cache_numshardbits: 6
+2021/03/14-00:06:57.568288 7f7b078bea80 Options.max_subcompactions: 1
+2021/03/14-00:06:57.568288 7f7b078bea80 Options.max_background_flushes: -1
+2021/03/14-00:06:57.568289 7f7b078bea80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:06:57.568289 7f7b078bea80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:06:57.568290 7f7b078bea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:06:57.568291 7f7b078bea80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:06:57.568291 7f7b078bea80 Options.advise_random_on_open: 1
+2021/03/14-00:06:57.568292 7f7b078bea80 Options.db_write_buffer_size: 0
+2021/03/14-00:06:57.568292 7f7b078bea80 Options.write_buffer_manager: 0x2adab90
+2021/03/14-00:06:57.568293 7f7b078bea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:06:57.568293 7f7b078bea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:06:57.568294 7f7b078bea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:06:57.568295 7f7b078bea80 Options.use_adaptive_mutex: 0
+2021/03/14-00:06:57.568295 7f7b078bea80 Options.rate_limiter: (nil)
+2021/03/14-00:06:57.568296 7f7b078bea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:06:57.568305 7f7b078bea80 Options.wal_recovery_mode: 2
+2021/03/14-00:06:57.568306 7f7b078bea80 Options.enable_thread_tracking: 0
+2021/03/14-00:06:57.568306 7f7b078bea80 Options.enable_pipelined_write: 0
+2021/03/14-00:06:57.568307 7f7b078bea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:06:57.568308 7f7b078bea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:06:57.568308 7f7b078bea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:06:57.568309 7f7b078bea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:06:57.568309 7f7b078bea80 Options.row_cache: None
+2021/03/14-00:06:57.568310 7f7b078bea80 Options.wal_filter: None
+2021/03/14-00:06:57.568311 7f7b078bea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:06:57.568311 7f7b078bea80 Options.allow_ingest_behind: 0
+2021/03/14-00:06:57.568312 7f7b078bea80 Options.preserve_deletes: 0
+2021/03/14-00:06:57.568312 7f7b078bea80 Options.two_write_queues: 0
+2021/03/14-00:06:57.568313 7f7b078bea80 Options.manual_wal_flush: 0
+2021/03/14-00:06:57.568314 7f7b078bea80 Options.max_background_jobs: 16
+2021/03/14-00:06:57.568315 7f7b078bea80 Options.max_background_compactions: -1
+2021/03/14-00:06:57.568315 7f7b078bea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:06:57.568316 7f7b078bea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:06:57.568316 7f7b078bea80 Options.delayed_write_rate : 16777216
+2021/03/14-00:06:57.568317 7f7b078bea80 Options.max_total_wal_size: 0
+2021/03/14-00:06:57.568318 7f7b078bea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:06:57.568318 7f7b078bea80 Options.stats_dump_period_sec: 600
+2021/03/14-00:06:57.568319 7f7b078bea80 Options.max_open_files: -1
+2021/03/14-00:06:57.568319 7f7b078bea80 Options.bytes_per_sync: 0
+2021/03/14-00:06:57.568320 7f7b078bea80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:06:57.568320 7f7b078bea80 Options.compaction_readahead_size: 0
+2021/03/14-00:06:57.568321 7f7b078bea80 Compression algorithms supported:
+2021/03/14-00:06:57.568322 7f7b078bea80 Snappy supported: 1
+2021/03/14-00:06:57.568322 7f7b078bea80 Zlib supported: 1
+2021/03/14-00:06:57.568323 7f7b078bea80 Bzip supported: 1
+2021/03/14-00:06:57.568323 7f7b078bea80 LZ4 supported: 1
+2021/03/14-00:06:57.568324 7f7b078bea80 ZSTDNotFinal supported: 1
+2021/03/14-00:06:57.568328 7f7b078bea80 ZSTD supported: 1
+2021/03/14-00:06:57.568331 7f7b078bea80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:06:57.568332 7f7b078bea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:06:57.568422 7f7b078bea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:06:57.568476 7f7b078bea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:06:57.568478 7f7b078bea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:06:57.568479 7f7b078bea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:06:57.568480 7f7b078bea80 Options.compaction_filter: None
+2021/03/14-00:06:57.568480 7f7b078bea80 Options.compaction_filter_factory: None
+2021/03/14-00:06:57.568481 7f7b078bea80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:06:57.568482 7f7b078bea80 Options.table_factory: BlockBasedTable
+2021/03/14-00:06:57.568495 7f7b078bea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2aea520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2acfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:06:57.568496 7f7b078bea80 Options.write_buffer_size: 134217728
+2021/03/14-00:06:57.568496 7f7b078bea80 Options.max_write_buffer_number: 6
+2021/03/14-00:06:57.568497 7f7b078bea80 Options.compression[0]: NoCompression
+2021/03/14-00:06:57.568498 7f7b078bea80 Options.compression[1]: NoCompression
+2021/03/14-00:06:57.568498 7f7b078bea80 Options.compression[2]: Snappy
+2021/03/14-00:06:57.568499 7f7b078bea80 Options.compression[3]: Snappy
+2021/03/14-00:06:57.568500 7f7b078bea80 Options.compression[4]: Snappy
+2021/03/14-00:06:57.568500 7f7b078bea80 Options.compression[5]: Snappy
+2021/03/14-00:06:57.568501 7f7b078bea80 Options.compression[6]: Snappy
+2021/03/14-00:06:57.568501 7f7b078bea80 Options.bottommost_compression: Disabled
+2021/03/14-00:06:57.568502 7f7b078bea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:06:57.568503 7f7b078bea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:06:57.568503 7f7b078bea80 Options.num_levels: 7
+2021/03/14-00:06:57.568504 7f7b078bea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:06:57.568505 7f7b078bea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:06:57.568505 7f7b078bea80 Options.compression_opts.window_bits: -14
+2021/03/14-00:06:57.568506 7f7b078bea80 Options.compression_opts.level: -1
+2021/03/14-00:06:57.568506 7f7b078bea80 Options.compression_opts.strategy: 0
+2021/03/14-00:06:57.568507 7f7b078bea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:06:57.568508 7f7b078bea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:06:57.568508 7f7b078bea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:06:57.568509 7f7b078bea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:06:57.568509 7f7b078bea80 Options.target_file_size_base: 67108864
+2021/03/14-00:06:57.568510 7f7b078bea80 Options.target_file_size_multiplier: 1
+2021/03/14-00:06:57.568510 7f7b078bea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:06:57.568511 7f7b078bea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:06:57.568512 7f7b078bea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:06:57.568513 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:06:57.568521 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:06:57.568521 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:06:57.568522 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:06:57.568523 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:06:57.568523 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:06:57.568524 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:06:57.568524 7f7b078bea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:06:57.568525 7f7b078bea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:06:57.568525 7f7b078bea80 Options.arena_block_size: 16777216
+2021/03/14-00:06:57.568526 7f7b078bea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:06:57.568527 7f7b078bea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:06:57.568527 7f7b078bea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:06:57.568528 7f7b078bea80 Options.disable_auto_compactions: 0
+2021/03/14-00:06:57.568530 7f7b078bea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:06:57.568530 7f7b078bea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:06:57.568531 7f7b078bea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:06:57.568531 7f7b078bea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:06:57.568532 7f7b078bea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:06:57.568533 7f7b078bea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:06:57.568533 7f7b078bea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:06:57.568534 7f7b078bea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:06:57.568535 7f7b078bea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:06:57.568536 7f7b078bea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:06:57.568536 7f7b078bea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:06:57.568537 7f7b078bea80 Options.table_properties_collectors:
+2021/03/14-00:06:57.568537 7f7b078bea80 Options.inplace_update_support: 0
+2021/03/14-00:06:57.568538 7f7b078bea80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:06:57.568539 7f7b078bea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:06:57.568540 7f7b078bea80 Options.memtable_huge_page_size: 0
+2021/03/14-00:06:57.568540 7f7b078bea80 Options.bloom_locality: 0
+2021/03/14-00:06:57.568541 7f7b078bea80 Options.max_successive_merges: 0
+2021/03/14-00:06:57.568541 7f7b078bea80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:06:57.568542 7f7b078bea80 Options.paranoid_file_checks: 0
+2021/03/14-00:06:57.568543 7f7b078bea80 Options.force_consistency_checks: 0
+2021/03/14-00:06:57.568543 7f7b078bea80 Options.report_bg_io_stats: 0
+2021/03/14-00:06:57.568904 7f7b078bea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:06:57.568906 7f7b078bea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:06:57.568993 7f7b078bea80 EVENT_LOG_v1 {"time_micros": 1615676817568984, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:06:57.568999 7f7b078bea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:06:58.233585 7f7b078bea80 EVENT_LOG_v1 {"time_micros": 1615676818233582, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677089808281 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677089808281
new file mode 100644
index 0000000..2f887bd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677089808281
@@ -0,0 +1,186 @@
+2021/03/14-00:06:58.245715 7f7b078bea80 RocksDB version: 5.11.3
+2021/03/14-00:06:58.245774 7f7b078bea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:06:58.245775 7f7b078bea80 Compile date Mar 13 2021
+2021/03/14-00:06:58.245777 7f7b078bea80 DB SUMMARY
+2021/03/14-00:06:58.245844 7f7b078bea80 CURRENT file: CURRENT
+2021/03/14-00:06:58.245845 7f7b078bea80 IDENTITY file: IDENTITY
+2021/03/14-00:06:58.245852 7f7b078bea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:06:58.245853 7f7b078bea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:06:58.245854 7f7b078bea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:06:58.245858 7f7b078bea80 Options.error_if_exists: 0
+2021/03/14-00:06:58.245859 7f7b078bea80 Options.create_if_missing: 1
+2021/03/14-00:06:58.245859 7f7b078bea80 Options.paranoid_checks: 1
+2021/03/14-00:06:58.245860 7f7b078bea80 Options.env: 0x7f7b08278080
+2021/03/14-00:06:58.245861 7f7b078bea80 Options.info_log: 0x2af2ca0
+2021/03/14-00:06:58.245861 7f7b078bea80 Options.max_file_opening_threads: 16
+2021/03/14-00:06:58.245862 7f7b078bea80 Options.statistics: (nil)
+2021/03/14-00:06:58.245863 7f7b078bea80 Options.use_fsync: 0
+2021/03/14-00:06:58.245863 7f7b078bea80 Options.max_log_file_size: 0
+2021/03/14-00:06:58.245864 7f7b078bea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:06:58.245864 7f7b078bea80 Options.log_file_time_to_roll: 0
+2021/03/14-00:06:58.245865 7f7b078bea80 Options.keep_log_file_num: 1000
+2021/03/14-00:06:58.245866 7f7b078bea80 Options.recycle_log_file_num: 0
+2021/03/14-00:06:58.245866 7f7b078bea80 Options.allow_fallocate: 1
+2021/03/14-00:06:58.245867 7f7b078bea80 Options.allow_mmap_reads: 0
+2021/03/14-00:06:58.245868 7f7b078bea80 Options.allow_mmap_writes: 0
+2021/03/14-00:06:58.245868 7f7b078bea80 Options.use_direct_reads: 0
+2021/03/14-00:06:58.245869 7f7b078bea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:06:58.245869 7f7b078bea80 Options.create_missing_column_families: 0
+2021/03/14-00:06:58.245870 7f7b078bea80 Options.db_log_dir:
+2021/03/14-00:06:58.245870 7f7b078bea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:06:58.245871 7f7b078bea80 Options.table_cache_numshardbits: 6
+2021/03/14-00:06:58.245871 7f7b078bea80 Options.max_subcompactions: 1
+2021/03/14-00:06:58.245872 7f7b078bea80 Options.max_background_flushes: -1
+2021/03/14-00:06:58.245873 7f7b078bea80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:06:58.245873 7f7b078bea80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:06:58.245874 7f7b078bea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:06:58.245874 7f7b078bea80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:06:58.245875 7f7b078bea80 Options.advise_random_on_open: 1
+2021/03/14-00:06:58.245876 7f7b078bea80 Options.db_write_buffer_size: 0
+2021/03/14-00:06:58.245876 7f7b078bea80 Options.write_buffer_manager: 0x2adab90
+2021/03/14-00:06:58.245877 7f7b078bea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:06:58.245877 7f7b078bea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:06:58.245878 7f7b078bea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:06:58.245878 7f7b078bea80 Options.use_adaptive_mutex: 0
+2021/03/14-00:06:58.245879 7f7b078bea80 Options.rate_limiter: (nil)
+2021/03/14-00:06:58.245880 7f7b078bea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:06:58.245888 7f7b078bea80 Options.wal_recovery_mode: 2
+2021/03/14-00:06:58.245889 7f7b078bea80 Options.enable_thread_tracking: 0
+2021/03/14-00:06:58.245889 7f7b078bea80 Options.enable_pipelined_write: 0
+2021/03/14-00:06:58.245890 7f7b078bea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:06:58.245890 7f7b078bea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:06:58.245891 7f7b078bea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:06:58.245891 7f7b078bea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:06:58.245892 7f7b078bea80 Options.row_cache: None
+2021/03/14-00:06:58.245893 7f7b078bea80 Options.wal_filter: None
+2021/03/14-00:06:58.245893 7f7b078bea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:06:58.245894 7f7b078bea80 Options.allow_ingest_behind: 0
+2021/03/14-00:06:58.245894 7f7b078bea80 Options.preserve_deletes: 0
+2021/03/14-00:06:58.245895 7f7b078bea80 Options.two_write_queues: 0
+2021/03/14-00:06:58.245895 7f7b078bea80 Options.manual_wal_flush: 0
+2021/03/14-00:06:58.245897 7f7b078bea80 Options.max_background_jobs: 16
+2021/03/14-00:06:58.245897 7f7b078bea80 Options.max_background_compactions: -1
+2021/03/14-00:06:58.245898 7f7b078bea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:06:58.245898 7f7b078bea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:06:58.245899 7f7b078bea80 Options.delayed_write_rate : 16777216
+2021/03/14-00:06:58.245900 7f7b078bea80 Options.max_total_wal_size: 0
+2021/03/14-00:06:58.245900 7f7b078bea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:06:58.245901 7f7b078bea80 Options.stats_dump_period_sec: 600
+2021/03/14-00:06:58.245901 7f7b078bea80 Options.max_open_files: -1
+2021/03/14-00:06:58.245902 7f7b078bea80 Options.bytes_per_sync: 0
+2021/03/14-00:06:58.245903 7f7b078bea80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:06:58.245903 7f7b078bea80 Options.compaction_readahead_size: 0
+2021/03/14-00:06:58.245904 7f7b078bea80 Compression algorithms supported:
+2021/03/14-00:06:58.245904 7f7b078bea80 Snappy supported: 1
+2021/03/14-00:06:58.245905 7f7b078bea80 Zlib supported: 1
+2021/03/14-00:06:58.245905 7f7b078bea80 Bzip supported: 1
+2021/03/14-00:06:58.245906 7f7b078bea80 LZ4 supported: 1
+2021/03/14-00:06:58.245906 7f7b078bea80 ZSTDNotFinal supported: 1
+2021/03/14-00:06:58.245910 7f7b078bea80 ZSTD supported: 1
+2021/03/14-00:06:58.245913 7f7b078bea80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:06:58.245915 7f7b078bea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:06:58.246006 7f7b078bea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:06:58.246058 7f7b078bea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:06:58.246060 7f7b078bea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:06:58.246061 7f7b078bea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:06:58.246062 7f7b078bea80 Options.compaction_filter: None
+2021/03/14-00:06:58.246062 7f7b078bea80 Options.compaction_filter_factory: None
+2021/03/14-00:06:58.246063 7f7b078bea80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:06:58.246064 7f7b078bea80 Options.table_factory: BlockBasedTable
+2021/03/14-00:06:58.246077 7f7b078bea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2aea520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2acfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:06:58.246078 7f7b078bea80 Options.write_buffer_size: 134217728
+2021/03/14-00:06:58.246078 7f7b078bea80 Options.max_write_buffer_number: 6
+2021/03/14-00:06:58.246079 7f7b078bea80 Options.compression[0]: NoCompression
+2021/03/14-00:06:58.246080 7f7b078bea80 Options.compression[1]: NoCompression
+2021/03/14-00:06:58.246081 7f7b078bea80 Options.compression[2]: Snappy
+2021/03/14-00:06:58.246081 7f7b078bea80 Options.compression[3]: Snappy
+2021/03/14-00:06:58.246082 7f7b078bea80 Options.compression[4]: Snappy
+2021/03/14-00:06:58.246082 7f7b078bea80 Options.compression[5]: Snappy
+2021/03/14-00:06:58.246083 7f7b078bea80 Options.compression[6]: Snappy
+2021/03/14-00:06:58.246083 7f7b078bea80 Options.bottommost_compression: Disabled
+2021/03/14-00:06:58.246084 7f7b078bea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:06:58.246085 7f7b078bea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:06:58.246085 7f7b078bea80 Options.num_levels: 7
+2021/03/14-00:06:58.246086 7f7b078bea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:06:58.246086 7f7b078bea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:06:58.246087 7f7b078bea80 Options.compression_opts.window_bits: -14
+2021/03/14-00:06:58.246088 7f7b078bea80 Options.compression_opts.level: -1
+2021/03/14-00:06:58.246088 7f7b078bea80 Options.compression_opts.strategy: 0
+2021/03/14-00:06:58.246089 7f7b078bea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:06:58.246089 7f7b078bea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:06:58.246090 7f7b078bea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:06:58.246091 7f7b078bea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:06:58.246091 7f7b078bea80 Options.target_file_size_base: 67108864
+2021/03/14-00:06:58.246092 7f7b078bea80 Options.target_file_size_multiplier: 1
+2021/03/14-00:06:58.246092 7f7b078bea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:06:58.246093 7f7b078bea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:06:58.246093 7f7b078bea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:06:58.246095 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:06:58.246102 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:06:58.246103 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:06:58.246104 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:06:58.246104 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:06:58.246105 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:06:58.246105 7f7b078bea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:06:58.246106 7f7b078bea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:06:58.246107 7f7b078bea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:06:58.246107 7f7b078bea80 Options.arena_block_size: 16777216
+2021/03/14-00:06:58.246108 7f7b078bea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:06:58.246108 7f7b078bea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:06:58.246109 7f7b078bea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:06:58.246110 7f7b078bea80 Options.disable_auto_compactions: 0
+2021/03/14-00:06:58.246111 7f7b078bea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:06:58.246112 7f7b078bea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:06:58.246113 7f7b078bea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:06:58.246113 7f7b078bea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:06:58.246114 7f7b078bea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:06:58.246114 7f7b078bea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:06:58.246115 7f7b078bea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:06:58.246116 7f7b078bea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:06:58.246116 7f7b078bea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:06:58.246117 7f7b078bea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:06:58.246118 7f7b078bea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:06:58.246118 7f7b078bea80 Options.table_properties_collectors:
+2021/03/14-00:06:58.246119 7f7b078bea80 Options.inplace_update_support: 0
+2021/03/14-00:06:58.246119 7f7b078bea80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:06:58.246120 7f7b078bea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:06:58.246121 7f7b078bea80 Options.memtable_huge_page_size: 0
+2021/03/14-00:06:58.246121 7f7b078bea80 Options.bloom_locality: 0
+2021/03/14-00:06:58.246122 7f7b078bea80 Options.max_successive_merges: 0
+2021/03/14-00:06:58.246122 7f7b078bea80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:06:58.246123 7f7b078bea80 Options.paranoid_file_checks: 0
+2021/03/14-00:06:58.246124 7f7b078bea80 Options.force_consistency_checks: 0
+2021/03/14-00:06:58.246124 7f7b078bea80 Options.report_bg_io_stats: 0
+2021/03/14-00:06:58.246501 7f7b078bea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:06:58.246504 7f7b078bea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:06:58.246591 7f7b078bea80 EVENT_LOG_v1 {"time_micros": 1615676818246582, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:06:58.246597 7f7b078bea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:06:58.911813 7f7b078bea80 EVENT_LOG_v1 {"time_micros": 1615676818911809, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677090517291 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677090517291
new file mode 100644
index 0000000..2cb51a1
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677090517291
@@ -0,0 +1,186 @@
+2021/03/14-00:11:29.808689 7f83f3061a80 RocksDB version: 5.11.3
+2021/03/14-00:11:29.808778 7f83f3061a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:11:29.808780 7f83f3061a80 Compile date Mar 13 2021
+2021/03/14-00:11:29.808785 7f83f3061a80 DB SUMMARY
+2021/03/14-00:11:29.808893 7f83f3061a80 CURRENT file: CURRENT
+2021/03/14-00:11:29.808895 7f83f3061a80 IDENTITY file: IDENTITY
+2021/03/14-00:11:29.808907 7f83f3061a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:11:29.808909 7f83f3061a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:11:29.808911 7f83f3061a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:11:29.808919 7f83f3061a80 Options.error_if_exists: 0
+2021/03/14-00:11:29.808921 7f83f3061a80 Options.create_if_missing: 1
+2021/03/14-00:11:29.808922 7f83f3061a80 Options.paranoid_checks: 1
+2021/03/14-00:11:29.808923 7f83f3061a80 Options.env: 0x7f83f3a1b080
+2021/03/14-00:11:29.808924 7f83f3061a80 Options.info_log: 0x2cc2ca0
+2021/03/14-00:11:29.808925 7f83f3061a80 Options.max_file_opening_threads: 16
+2021/03/14-00:11:29.808926 7f83f3061a80 Options.statistics: (nil)
+2021/03/14-00:11:29.808928 7f83f3061a80 Options.use_fsync: 0
+2021/03/14-00:11:29.808928 7f83f3061a80 Options.max_log_file_size: 0
+2021/03/14-00:11:29.808929 7f83f3061a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:11:29.808930 7f83f3061a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:11:29.808930 7f83f3061a80 Options.keep_log_file_num: 1000
+2021/03/14-00:11:29.808931 7f83f3061a80 Options.recycle_log_file_num: 0
+2021/03/14-00:11:29.808932 7f83f3061a80 Options.allow_fallocate: 1
+2021/03/14-00:11:29.808932 7f83f3061a80 Options.allow_mmap_reads: 0
+2021/03/14-00:11:29.808933 7f83f3061a80 Options.allow_mmap_writes: 0
+2021/03/14-00:11:29.808934 7f83f3061a80 Options.use_direct_reads: 0
+2021/03/14-00:11:29.808934 7f83f3061a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:11:29.808935 7f83f3061a80 Options.create_missing_column_families: 0
+2021/03/14-00:11:29.808935 7f83f3061a80 Options.db_log_dir:
+2021/03/14-00:11:29.808936 7f83f3061a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:11:29.808937 7f83f3061a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:11:29.808937 7f83f3061a80 Options.max_subcompactions: 1
+2021/03/14-00:11:29.808938 7f83f3061a80 Options.max_background_flushes: -1
+2021/03/14-00:11:29.808939 7f83f3061a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:11:29.808939 7f83f3061a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:11:29.808940 7f83f3061a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:11:29.808941 7f83f3061a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:11:29.808941 7f83f3061a80 Options.advise_random_on_open: 1
+2021/03/14-00:11:29.808942 7f83f3061a80 Options.db_write_buffer_size: 0
+2021/03/14-00:11:29.808942 7f83f3061a80 Options.write_buffer_manager: 0x2caab90
+2021/03/14-00:11:29.808943 7f83f3061a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:11:29.808944 7f83f3061a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:11:29.808944 7f83f3061a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:11:29.808945 7f83f3061a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:11:29.808946 7f83f3061a80 Options.rate_limiter: (nil)
+2021/03/14-00:11:29.808948 7f83f3061a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:11:29.808960 7f83f3061a80 Options.wal_recovery_mode: 2
+2021/03/14-00:11:29.808961 7f83f3061a80 Options.enable_thread_tracking: 0
+2021/03/14-00:11:29.808962 7f83f3061a80 Options.enable_pipelined_write: 0
+2021/03/14-00:11:29.808962 7f83f3061a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:11:29.808963 7f83f3061a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:11:29.808964 7f83f3061a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:11:29.808964 7f83f3061a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:11:29.808965 7f83f3061a80 Options.row_cache: None
+2021/03/14-00:11:29.808966 7f83f3061a80 Options.wal_filter: None
+2021/03/14-00:11:29.808966 7f83f3061a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:11:29.808967 7f83f3061a80 Options.allow_ingest_behind: 0
+2021/03/14-00:11:29.808968 7f83f3061a80 Options.preserve_deletes: 0
+2021/03/14-00:11:29.808968 7f83f3061a80 Options.two_write_queues: 0
+2021/03/14-00:11:29.808969 7f83f3061a80 Options.manual_wal_flush: 0
+2021/03/14-00:11:29.808970 7f83f3061a80 Options.max_background_jobs: 16
+2021/03/14-00:11:29.808971 7f83f3061a80 Options.max_background_compactions: -1
+2021/03/14-00:11:29.808972 7f83f3061a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:11:29.808972 7f83f3061a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:11:29.808973 7f83f3061a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:11:29.808973 7f83f3061a80 Options.max_total_wal_size: 0
+2021/03/14-00:11:29.808974 7f83f3061a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:11:29.808975 7f83f3061a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:11:29.808975 7f83f3061a80 Options.max_open_files: -1
+2021/03/14-00:11:29.808976 7f83f3061a80 Options.bytes_per_sync: 0
+2021/03/14-00:11:29.808977 7f83f3061a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:11:29.808977 7f83f3061a80 Options.compaction_readahead_size: 0
+2021/03/14-00:11:29.808978 7f83f3061a80 Compression algorithms supported:
+2021/03/14-00:11:29.808979 7f83f3061a80 Snappy supported: 1
+2021/03/14-00:11:29.808979 7f83f3061a80 Zlib supported: 1
+2021/03/14-00:11:29.808980 7f83f3061a80 Bzip supported: 1
+2021/03/14-00:11:29.808981 7f83f3061a80 LZ4 supported: 1
+2021/03/14-00:11:29.808981 7f83f3061a80 ZSTDNotFinal supported: 1
+2021/03/14-00:11:29.808988 7f83f3061a80 ZSTD supported: 1
+2021/03/14-00:11:29.808992 7f83f3061a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:11:29.808994 7f83f3061a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:11:29.809174 7f83f3061a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:11:29.809267 7f83f3061a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:11:29.809269 7f83f3061a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:11:29.809270 7f83f3061a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:11:29.809271 7f83f3061a80 Options.compaction_filter: None
+2021/03/14-00:11:29.809272 7f83f3061a80 Options.compaction_filter_factory: None
+2021/03/14-00:11:29.809273 7f83f3061a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:11:29.809274 7f83f3061a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:11:29.809291 7f83f3061a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2cba520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c9fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:11:29.809292 7f83f3061a80 Options.write_buffer_size: 134217728
+2021/03/14-00:11:29.809292 7f83f3061a80 Options.max_write_buffer_number: 6
+2021/03/14-00:11:29.809293 7f83f3061a80 Options.compression[0]: NoCompression
+2021/03/14-00:11:29.809294 7f83f3061a80 Options.compression[1]: NoCompression
+2021/03/14-00:11:29.809295 7f83f3061a80 Options.compression[2]: Snappy
+2021/03/14-00:11:29.809295 7f83f3061a80 Options.compression[3]: Snappy
+2021/03/14-00:11:29.809296 7f83f3061a80 Options.compression[4]: Snappy
+2021/03/14-00:11:29.809297 7f83f3061a80 Options.compression[5]: Snappy
+2021/03/14-00:11:29.809297 7f83f3061a80 Options.compression[6]: Snappy
+2021/03/14-00:11:29.809298 7f83f3061a80 Options.bottommost_compression: Disabled
+2021/03/14-00:11:29.809299 7f83f3061a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:11:29.809299 7f83f3061a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:11:29.809300 7f83f3061a80 Options.num_levels: 7
+2021/03/14-00:11:29.809301 7f83f3061a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:11:29.809301 7f83f3061a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:11:29.809302 7f83f3061a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:11:29.809303 7f83f3061a80 Options.compression_opts.level: -1
+2021/03/14-00:11:29.809303 7f83f3061a80 Options.compression_opts.strategy: 0
+2021/03/14-00:11:29.809304 7f83f3061a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:11:29.809305 7f83f3061a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:11:29.809305 7f83f3061a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:11:29.809306 7f83f3061a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:11:29.809307 7f83f3061a80 Options.target_file_size_base: 67108864
+2021/03/14-00:11:29.809307 7f83f3061a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:11:29.809308 7f83f3061a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:11:29.809309 7f83f3061a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:11:29.809309 7f83f3061a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:11:29.809311 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:11:29.809322 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:11:29.809323 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:11:29.809324 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:11:29.809325 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:11:29.809325 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:11:29.809326 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:11:29.809326 7f83f3061a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:11:29.809327 7f83f3061a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:11:29.809328 7f83f3061a80 Options.arena_block_size: 16777216
+2021/03/14-00:11:29.809329 7f83f3061a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:11:29.809329 7f83f3061a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:11:29.809330 7f83f3061a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:11:29.809331 7f83f3061a80 Options.disable_auto_compactions: 0
+2021/03/14-00:11:29.809333 7f83f3061a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:11:29.809333 7f83f3061a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:11:29.809334 7f83f3061a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:11:29.809335 7f83f3061a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:11:29.809335 7f83f3061a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:11:29.809336 7f83f3061a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:11:29.809337 7f83f3061a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:11:29.809338 7f83f3061a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:11:29.809338 7f83f3061a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:11:29.809339 7f83f3061a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:11:29.809340 7f83f3061a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:11:29.809340 7f83f3061a80 Options.table_properties_collectors:
+2021/03/14-00:11:29.809341 7f83f3061a80 Options.inplace_update_support: 0
+2021/03/14-00:11:29.809341 7f83f3061a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:11:29.809342 7f83f3061a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:11:29.809343 7f83f3061a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:11:29.809344 7f83f3061a80 Options.bloom_locality: 0
+2021/03/14-00:11:29.809344 7f83f3061a80 Options.max_successive_merges: 0
+2021/03/14-00:11:29.809345 7f83f3061a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:11:29.809346 7f83f3061a80 Options.paranoid_file_checks: 0
+2021/03/14-00:11:29.809346 7f83f3061a80 Options.force_consistency_checks: 0
+2021/03/14-00:11:29.809347 7f83f3061a80 Options.report_bg_io_stats: 0
+2021/03/14-00:11:29.809870 7f83f3061a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:11:29.809873 7f83f3061a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:11:29.809986 7f83f3061a80 EVENT_LOG_v1 {"time_micros": 1615677089809969, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:11:29.809994 7f83f3061a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:11:30.505396 7f83f3061a80 EVENT_LOG_v1 {"time_micros": 1615677090505393, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677091209184 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677091209184
new file mode 100644
index 0000000..0effeb1
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677091209184
@@ -0,0 +1,186 @@
+2021/03/14-00:11:30.517616 7f83f3061a80 RocksDB version: 5.11.3
+2021/03/14-00:11:30.517671 7f83f3061a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:11:30.517673 7f83f3061a80 Compile date Mar 13 2021
+2021/03/14-00:11:30.517675 7f83f3061a80 DB SUMMARY
+2021/03/14-00:11:30.517743 7f83f3061a80 CURRENT file: CURRENT
+2021/03/14-00:11:30.517744 7f83f3061a80 IDENTITY file: IDENTITY
+2021/03/14-00:11:30.517751 7f83f3061a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:11:30.517752 7f83f3061a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:11:30.517753 7f83f3061a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:11:30.517757 7f83f3061a80 Options.error_if_exists: 0
+2021/03/14-00:11:30.517758 7f83f3061a80 Options.create_if_missing: 1
+2021/03/14-00:11:30.517758 7f83f3061a80 Options.paranoid_checks: 1
+2021/03/14-00:11:30.517759 7f83f3061a80 Options.env: 0x7f83f3a1b080
+2021/03/14-00:11:30.517759 7f83f3061a80 Options.info_log: 0x2cc2ca0
+2021/03/14-00:11:30.517760 7f83f3061a80 Options.max_file_opening_threads: 16
+2021/03/14-00:11:30.517761 7f83f3061a80 Options.statistics: (nil)
+2021/03/14-00:11:30.517761 7f83f3061a80 Options.use_fsync: 0
+2021/03/14-00:11:30.517762 7f83f3061a80 Options.max_log_file_size: 0
+2021/03/14-00:11:30.517762 7f83f3061a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:11:30.517763 7f83f3061a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:11:30.517764 7f83f3061a80 Options.keep_log_file_num: 1000
+2021/03/14-00:11:30.517764 7f83f3061a80 Options.recycle_log_file_num: 0
+2021/03/14-00:11:30.517765 7f83f3061a80 Options.allow_fallocate: 1
+2021/03/14-00:11:30.517765 7f83f3061a80 Options.allow_mmap_reads: 0
+2021/03/14-00:11:30.517766 7f83f3061a80 Options.allow_mmap_writes: 0
+2021/03/14-00:11:30.517766 7f83f3061a80 Options.use_direct_reads: 0
+2021/03/14-00:11:30.517767 7f83f3061a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:11:30.517768 7f83f3061a80 Options.create_missing_column_families: 0
+2021/03/14-00:11:30.517768 7f83f3061a80 Options.db_log_dir:
+2021/03/14-00:11:30.517769 7f83f3061a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:11:30.517769 7f83f3061a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:11:30.517770 7f83f3061a80 Options.max_subcompactions: 1
+2021/03/14-00:11:30.517770 7f83f3061a80 Options.max_background_flushes: -1
+2021/03/14-00:11:30.517771 7f83f3061a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:11:30.517772 7f83f3061a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:11:30.517772 7f83f3061a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:11:30.517773 7f83f3061a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:11:30.517773 7f83f3061a80 Options.advise_random_on_open: 1
+2021/03/14-00:11:30.517774 7f83f3061a80 Options.db_write_buffer_size: 0
+2021/03/14-00:11:30.517774 7f83f3061a80 Options.write_buffer_manager: 0x2caab90
+2021/03/14-00:11:30.517775 7f83f3061a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:11:30.517775 7f83f3061a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:11:30.517776 7f83f3061a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:11:30.517777 7f83f3061a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:11:30.517777 7f83f3061a80 Options.rate_limiter: (nil)
+2021/03/14-00:11:30.517779 7f83f3061a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:11:30.517786 7f83f3061a80 Options.wal_recovery_mode: 2
+2021/03/14-00:11:30.517787 7f83f3061a80 Options.enable_thread_tracking: 0
+2021/03/14-00:11:30.517787 7f83f3061a80 Options.enable_pipelined_write: 0
+2021/03/14-00:11:30.517788 7f83f3061a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:11:30.517788 7f83f3061a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:11:30.517789 7f83f3061a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:11:30.517789 7f83f3061a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:11:30.517790 7f83f3061a80 Options.row_cache: None
+2021/03/14-00:11:30.517791 7f83f3061a80 Options.wal_filter: None
+2021/03/14-00:11:30.517791 7f83f3061a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:11:30.517792 7f83f3061a80 Options.allow_ingest_behind: 0
+2021/03/14-00:11:30.517793 7f83f3061a80 Options.preserve_deletes: 0
+2021/03/14-00:11:30.517793 7f83f3061a80 Options.two_write_queues: 0
+2021/03/14-00:11:30.517794 7f83f3061a80 Options.manual_wal_flush: 0
+2021/03/14-00:11:30.517795 7f83f3061a80 Options.max_background_jobs: 16
+2021/03/14-00:11:30.517795 7f83f3061a80 Options.max_background_compactions: -1
+2021/03/14-00:11:30.517796 7f83f3061a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:11:30.517797 7f83f3061a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:11:30.517797 7f83f3061a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:11:30.517798 7f83f3061a80 Options.max_total_wal_size: 0
+2021/03/14-00:11:30.517798 7f83f3061a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:11:30.517799 7f83f3061a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:11:30.517799 7f83f3061a80 Options.max_open_files: -1
+2021/03/14-00:11:30.517800 7f83f3061a80 Options.bytes_per_sync: 0
+2021/03/14-00:11:30.517801 7f83f3061a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:11:30.517801 7f83f3061a80 Options.compaction_readahead_size: 0
+2021/03/14-00:11:30.517802 7f83f3061a80 Compression algorithms supported:
+2021/03/14-00:11:30.517802 7f83f3061a80 Snappy supported: 1
+2021/03/14-00:11:30.517803 7f83f3061a80 Zlib supported: 1
+2021/03/14-00:11:30.517803 7f83f3061a80 Bzip supported: 1
+2021/03/14-00:11:30.517804 7f83f3061a80 LZ4 supported: 1
+2021/03/14-00:11:30.517804 7f83f3061a80 ZSTDNotFinal supported: 1
+2021/03/14-00:11:30.517809 7f83f3061a80 ZSTD supported: 1
+2021/03/14-00:11:30.517812 7f83f3061a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:11:30.517813 7f83f3061a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:11:30.517902 7f83f3061a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:11:30.517953 7f83f3061a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:11:30.517955 7f83f3061a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:11:30.517956 7f83f3061a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:11:30.517956 7f83f3061a80 Options.compaction_filter: None
+2021/03/14-00:11:30.517957 7f83f3061a80 Options.compaction_filter_factory: None
+2021/03/14-00:11:30.517958 7f83f3061a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:11:30.517958 7f83f3061a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:11:30.517972 7f83f3061a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2cba520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c9fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:11:30.517973 7f83f3061a80 Options.write_buffer_size: 134217728
+2021/03/14-00:11:30.517973 7f83f3061a80 Options.max_write_buffer_number: 6
+2021/03/14-00:11:30.517974 7f83f3061a80 Options.compression[0]: NoCompression
+2021/03/14-00:11:30.517975 7f83f3061a80 Options.compression[1]: NoCompression
+2021/03/14-00:11:30.517976 7f83f3061a80 Options.compression[2]: Snappy
+2021/03/14-00:11:30.517976 7f83f3061a80 Options.compression[3]: Snappy
+2021/03/14-00:11:30.517977 7f83f3061a80 Options.compression[4]: Snappy
+2021/03/14-00:11:30.517977 7f83f3061a80 Options.compression[5]: Snappy
+2021/03/14-00:11:30.517978 7f83f3061a80 Options.compression[6]: Snappy
+2021/03/14-00:11:30.517978 7f83f3061a80 Options.bottommost_compression: Disabled
+2021/03/14-00:11:30.517979 7f83f3061a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:11:30.517980 7f83f3061a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:11:30.517980 7f83f3061a80 Options.num_levels: 7
+2021/03/14-00:11:30.517981 7f83f3061a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:11:30.517981 7f83f3061a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:11:30.517982 7f83f3061a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:11:30.517983 7f83f3061a80 Options.compression_opts.level: -1
+2021/03/14-00:11:30.517983 7f83f3061a80 Options.compression_opts.strategy: 0
+2021/03/14-00:11:30.517984 7f83f3061a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:11:30.517984 7f83f3061a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:11:30.517985 7f83f3061a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:11:30.517985 7f83f3061a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:11:30.517986 7f83f3061a80 Options.target_file_size_base: 67108864
+2021/03/14-00:11:30.517987 7f83f3061a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:11:30.517987 7f83f3061a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:11:30.517988 7f83f3061a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:11:30.517988 7f83f3061a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:11:30.517990 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:11:30.517997 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:11:30.517998 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:11:30.517999 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:11:30.517999 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:11:30.518000 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:11:30.518000 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:11:30.518001 7f83f3061a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:11:30.518001 7f83f3061a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:11:30.518002 7f83f3061a80 Options.arena_block_size: 16777216
+2021/03/14-00:11:30.518003 7f83f3061a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:11:30.518003 7f83f3061a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:11:30.518004 7f83f3061a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:11:30.518004 7f83f3061a80 Options.disable_auto_compactions: 0
+2021/03/14-00:11:30.518006 7f83f3061a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:11:30.518007 7f83f3061a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:11:30.518007 7f83f3061a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:11:30.518008 7f83f3061a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:11:30.518008 7f83f3061a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:11:30.518009 7f83f3061a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:11:30.518009 7f83f3061a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:11:30.518010 7f83f3061a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:11:30.518011 7f83f3061a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:11:30.518011 7f83f3061a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:11:30.518012 7f83f3061a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:11:30.518013 7f83f3061a80 Options.table_properties_collectors:
+2021/03/14-00:11:30.518013 7f83f3061a80 Options.inplace_update_support: 0
+2021/03/14-00:11:30.518014 7f83f3061a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:11:30.518014 7f83f3061a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:11:30.518015 7f83f3061a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:11:30.518016 7f83f3061a80 Options.bloom_locality: 0
+2021/03/14-00:11:30.518016 7f83f3061a80 Options.max_successive_merges: 0
+2021/03/14-00:11:30.518017 7f83f3061a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:11:30.518017 7f83f3061a80 Options.paranoid_file_checks: 0
+2021/03/14-00:11:30.518018 7f83f3061a80 Options.force_consistency_checks: 0
+2021/03/14-00:11:30.518018 7f83f3061a80 Options.report_bg_io_stats: 0
+2021/03/14-00:11:30.518430 7f83f3061a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:11:30.518432 7f83f3061a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:11:30.518516 7f83f3061a80 EVENT_LOG_v1 {"time_micros": 1615677090518504, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:11:30.518521 7f83f3061a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:11:31.197774 7f83f3061a80 EVENT_LOG_v1 {"time_micros": 1615677091197770, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677091892321 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677091892321
new file mode 100644
index 0000000..6bcbce0
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677091892321
@@ -0,0 +1,186 @@
+2021/03/14-00:11:31.209520 7f83f3061a80 RocksDB version: 5.11.3
+2021/03/14-00:11:31.209576 7f83f3061a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:11:31.209578 7f83f3061a80 Compile date Mar 13 2021
+2021/03/14-00:11:31.209581 7f83f3061a80 DB SUMMARY
+2021/03/14-00:11:31.209648 7f83f3061a80 CURRENT file: CURRENT
+2021/03/14-00:11:31.209649 7f83f3061a80 IDENTITY file: IDENTITY
+2021/03/14-00:11:31.209656 7f83f3061a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:11:31.209657 7f83f3061a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:11:31.209658 7f83f3061a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:11:31.209662 7f83f3061a80 Options.error_if_exists: 0
+2021/03/14-00:11:31.209663 7f83f3061a80 Options.create_if_missing: 1
+2021/03/14-00:11:31.209664 7f83f3061a80 Options.paranoid_checks: 1
+2021/03/14-00:11:31.209664 7f83f3061a80 Options.env: 0x7f83f3a1b080
+2021/03/14-00:11:31.209665 7f83f3061a80 Options.info_log: 0x2cc2ca0
+2021/03/14-00:11:31.209665 7f83f3061a80 Options.max_file_opening_threads: 16
+2021/03/14-00:11:31.209666 7f83f3061a80 Options.statistics: (nil)
+2021/03/14-00:11:31.209667 7f83f3061a80 Options.use_fsync: 0
+2021/03/14-00:11:31.209667 7f83f3061a80 Options.max_log_file_size: 0
+2021/03/14-00:11:31.209668 7f83f3061a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:11:31.209668 7f83f3061a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:11:31.209669 7f83f3061a80 Options.keep_log_file_num: 1000
+2021/03/14-00:11:31.209670 7f83f3061a80 Options.recycle_log_file_num: 0
+2021/03/14-00:11:31.209670 7f83f3061a80 Options.allow_fallocate: 1
+2021/03/14-00:11:31.209671 7f83f3061a80 Options.allow_mmap_reads: 0
+2021/03/14-00:11:31.209671 7f83f3061a80 Options.allow_mmap_writes: 0
+2021/03/14-00:11:31.209672 7f83f3061a80 Options.use_direct_reads: 0
+2021/03/14-00:11:31.209672 7f83f3061a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:11:31.209673 7f83f3061a80 Options.create_missing_column_families: 0
+2021/03/14-00:11:31.209674 7f83f3061a80 Options.db_log_dir:
+2021/03/14-00:11:31.209674 7f83f3061a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:11:31.209675 7f83f3061a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:11:31.209675 7f83f3061a80 Options.max_subcompactions: 1
+2021/03/14-00:11:31.209676 7f83f3061a80 Options.max_background_flushes: -1
+2021/03/14-00:11:31.209677 7f83f3061a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:11:31.209677 7f83f3061a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:11:31.209678 7f83f3061a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:11:31.209678 7f83f3061a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:11:31.209679 7f83f3061a80 Options.advise_random_on_open: 1
+2021/03/14-00:11:31.209679 7f83f3061a80 Options.db_write_buffer_size: 0
+2021/03/14-00:11:31.209680 7f83f3061a80 Options.write_buffer_manager: 0x2caab90
+2021/03/14-00:11:31.209680 7f83f3061a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:11:31.209681 7f83f3061a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:11:31.209682 7f83f3061a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:11:31.209682 7f83f3061a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:11:31.209683 7f83f3061a80 Options.rate_limiter: (nil)
+2021/03/14-00:11:31.209684 7f83f3061a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:11:31.209691 7f83f3061a80 Options.wal_recovery_mode: 2
+2021/03/14-00:11:31.209692 7f83f3061a80 Options.enable_thread_tracking: 0
+2021/03/14-00:11:31.209693 7f83f3061a80 Options.enable_pipelined_write: 0
+2021/03/14-00:11:31.209693 7f83f3061a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:11:31.209694 7f83f3061a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:11:31.209694 7f83f3061a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:11:31.209695 7f83f3061a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:11:31.209695 7f83f3061a80 Options.row_cache: None
+2021/03/14-00:11:31.209696 7f83f3061a80 Options.wal_filter: None
+2021/03/14-00:11:31.209697 7f83f3061a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:11:31.209697 7f83f3061a80 Options.allow_ingest_behind: 0
+2021/03/14-00:11:31.209698 7f83f3061a80 Options.preserve_deletes: 0
+2021/03/14-00:11:31.209698 7f83f3061a80 Options.two_write_queues: 0
+2021/03/14-00:11:31.209699 7f83f3061a80 Options.manual_wal_flush: 0
+2021/03/14-00:11:31.209700 7f83f3061a80 Options.max_background_jobs: 16
+2021/03/14-00:11:31.209701 7f83f3061a80 Options.max_background_compactions: -1
+2021/03/14-00:11:31.209701 7f83f3061a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:11:31.209702 7f83f3061a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:11:31.209702 7f83f3061a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:11:31.209703 7f83f3061a80 Options.max_total_wal_size: 0
+2021/03/14-00:11:31.209703 7f83f3061a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:11:31.209704 7f83f3061a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:11:31.209705 7f83f3061a80 Options.max_open_files: -1
+2021/03/14-00:11:31.209705 7f83f3061a80 Options.bytes_per_sync: 0
+2021/03/14-00:11:31.209706 7f83f3061a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:11:31.209706 7f83f3061a80 Options.compaction_readahead_size: 0
+2021/03/14-00:11:31.209707 7f83f3061a80 Compression algorithms supported:
+2021/03/14-00:11:31.209707 7f83f3061a80 Snappy supported: 1
+2021/03/14-00:11:31.209708 7f83f3061a80 Zlib supported: 1
+2021/03/14-00:11:31.209709 7f83f3061a80 Bzip supported: 1
+2021/03/14-00:11:31.209709 7f83f3061a80 LZ4 supported: 1
+2021/03/14-00:11:31.209710 7f83f3061a80 ZSTDNotFinal supported: 1
+2021/03/14-00:11:31.209713 7f83f3061a80 ZSTD supported: 1
+2021/03/14-00:11:31.209717 7f83f3061a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:11:31.209718 7f83f3061a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:11:31.209806 7f83f3061a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:11:31.209857 7f83f3061a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:11:31.209859 7f83f3061a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:11:31.209860 7f83f3061a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:11:31.209861 7f83f3061a80 Options.compaction_filter: None
+2021/03/14-00:11:31.209861 7f83f3061a80 Options.compaction_filter_factory: None
+2021/03/14-00:11:31.209862 7f83f3061a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:11:31.209863 7f83f3061a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:11:31.209876 7f83f3061a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2cba520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c9fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:11:31.209877 7f83f3061a80 Options.write_buffer_size: 134217728
+2021/03/14-00:11:31.209878 7f83f3061a80 Options.max_write_buffer_number: 6
+2021/03/14-00:11:31.209878 7f83f3061a80 Options.compression[0]: NoCompression
+2021/03/14-00:11:31.209879 7f83f3061a80 Options.compression[1]: NoCompression
+2021/03/14-00:11:31.209880 7f83f3061a80 Options.compression[2]: Snappy
+2021/03/14-00:11:31.209880 7f83f3061a80 Options.compression[3]: Snappy
+2021/03/14-00:11:31.209881 7f83f3061a80 Options.compression[4]: Snappy
+2021/03/14-00:11:31.209882 7f83f3061a80 Options.compression[5]: Snappy
+2021/03/14-00:11:31.209882 7f83f3061a80 Options.compression[6]: Snappy
+2021/03/14-00:11:31.209883 7f83f3061a80 Options.bottommost_compression: Disabled
+2021/03/14-00:11:31.209884 7f83f3061a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:11:31.209884 7f83f3061a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:11:31.209885 7f83f3061a80 Options.num_levels: 7
+2021/03/14-00:11:31.209885 7f83f3061a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:11:31.209886 7f83f3061a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:11:31.209886 7f83f3061a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:11:31.209887 7f83f3061a80 Options.compression_opts.level: -1
+2021/03/14-00:11:31.209888 7f83f3061a80 Options.compression_opts.strategy: 0
+2021/03/14-00:11:31.209888 7f83f3061a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:11:31.209889 7f83f3061a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:11:31.209889 7f83f3061a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:11:31.209890 7f83f3061a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:11:31.209890 7f83f3061a80 Options.target_file_size_base: 67108864
+2021/03/14-00:11:31.209891 7f83f3061a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:11:31.209892 7f83f3061a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:11:31.209892 7f83f3061a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:11:31.209893 7f83f3061a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:11:31.209894 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:11:31.209902 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:11:31.209903 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:11:31.209903 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:11:31.209904 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:11:31.209904 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:11:31.209905 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:11:31.209906 7f83f3061a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:11:31.209906 7f83f3061a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:11:31.209907 7f83f3061a80 Options.arena_block_size: 16777216
+2021/03/14-00:11:31.209907 7f83f3061a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:11:31.209908 7f83f3061a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:11:31.209909 7f83f3061a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:11:31.209909 7f83f3061a80 Options.disable_auto_compactions: 0
+2021/03/14-00:11:31.209911 7f83f3061a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:11:31.209911 7f83f3061a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:11:31.209912 7f83f3061a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:11:31.209912 7f83f3061a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:11:31.209913 7f83f3061a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:11:31.209914 7f83f3061a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:11:31.209914 7f83f3061a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:11:31.209915 7f83f3061a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:11:31.209916 7f83f3061a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:11:31.209916 7f83f3061a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:11:31.209917 7f83f3061a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:11:31.209917 7f83f3061a80 Options.table_properties_collectors:
+2021/03/14-00:11:31.209918 7f83f3061a80 Options.inplace_update_support: 0
+2021/03/14-00:11:31.209918 7f83f3061a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:11:31.209919 7f83f3061a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:11:31.209920 7f83f3061a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:11:31.209920 7f83f3061a80 Options.bloom_locality: 0
+2021/03/14-00:11:31.209921 7f83f3061a80 Options.max_successive_merges: 0
+2021/03/14-00:11:31.209922 7f83f3061a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:11:31.209922 7f83f3061a80 Options.paranoid_file_checks: 0
+2021/03/14-00:11:31.209923 7f83f3061a80 Options.force_consistency_checks: 0
+2021/03/14-00:11:31.209923 7f83f3061a80 Options.report_bg_io_stats: 0
+2021/03/14-00:11:31.210312 7f83f3061a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:11:31.210314 7f83f3061a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:11:31.210397 7f83f3061a80 EVENT_LOG_v1 {"time_micros": 1615677091210385, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:11:31.210402 7f83f3061a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:11:31.880234 7f83f3061a80 EVENT_LOG_v1 {"time_micros": 1615677091880231, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677128897729 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677128897729
new file mode 100644
index 0000000..2f4adeb
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677128897729
@@ -0,0 +1,186 @@
+2021/03/14-00:11:31.892653 7f83f3061a80 RocksDB version: 5.11.3
+2021/03/14-00:11:31.892708 7f83f3061a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:11:31.892709 7f83f3061a80 Compile date Mar 13 2021
+2021/03/14-00:11:31.892711 7f83f3061a80 DB SUMMARY
+2021/03/14-00:11:31.892779 7f83f3061a80 CURRENT file: CURRENT
+2021/03/14-00:11:31.892780 7f83f3061a80 IDENTITY file: IDENTITY
+2021/03/14-00:11:31.892787 7f83f3061a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:11:31.892788 7f83f3061a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:11:31.892789 7f83f3061a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:11:31.892793 7f83f3061a80 Options.error_if_exists: 0
+2021/03/14-00:11:31.892794 7f83f3061a80 Options.create_if_missing: 1
+2021/03/14-00:11:31.892794 7f83f3061a80 Options.paranoid_checks: 1
+2021/03/14-00:11:31.892795 7f83f3061a80 Options.env: 0x7f83f3a1b080
+2021/03/14-00:11:31.892796 7f83f3061a80 Options.info_log: 0x2cc2ca0
+2021/03/14-00:11:31.892796 7f83f3061a80 Options.max_file_opening_threads: 16
+2021/03/14-00:11:31.892797 7f83f3061a80 Options.statistics: (nil)
+2021/03/14-00:11:31.892798 7f83f3061a80 Options.use_fsync: 0
+2021/03/14-00:11:31.892798 7f83f3061a80 Options.max_log_file_size: 0
+2021/03/14-00:11:31.892799 7f83f3061a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:11:31.892799 7f83f3061a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:11:31.892800 7f83f3061a80 Options.keep_log_file_num: 1000
+2021/03/14-00:11:31.892800 7f83f3061a80 Options.recycle_log_file_num: 0
+2021/03/14-00:11:31.892801 7f83f3061a80 Options.allow_fallocate: 1
+2021/03/14-00:11:31.892802 7f83f3061a80 Options.allow_mmap_reads: 0
+2021/03/14-00:11:31.892802 7f83f3061a80 Options.allow_mmap_writes: 0
+2021/03/14-00:11:31.892803 7f83f3061a80 Options.use_direct_reads: 0
+2021/03/14-00:11:31.892803 7f83f3061a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:11:31.892804 7f83f3061a80 Options.create_missing_column_families: 0
+2021/03/14-00:11:31.892804 7f83f3061a80 Options.db_log_dir:
+2021/03/14-00:11:31.892805 7f83f3061a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:11:31.892806 7f83f3061a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:11:31.892806 7f83f3061a80 Options.max_subcompactions: 1
+2021/03/14-00:11:31.892807 7f83f3061a80 Options.max_background_flushes: -1
+2021/03/14-00:11:31.892807 7f83f3061a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:11:31.892808 7f83f3061a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:11:31.892809 7f83f3061a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:11:31.892809 7f83f3061a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:11:31.892810 7f83f3061a80 Options.advise_random_on_open: 1
+2021/03/14-00:11:31.892810 7f83f3061a80 Options.db_write_buffer_size: 0
+2021/03/14-00:11:31.892811 7f83f3061a80 Options.write_buffer_manager: 0x2caab90
+2021/03/14-00:11:31.892811 7f83f3061a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:11:31.892812 7f83f3061a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:11:31.892812 7f83f3061a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:11:31.892813 7f83f3061a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:11:31.892814 7f83f3061a80 Options.rate_limiter: (nil)
+2021/03/14-00:11:31.892815 7f83f3061a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:11:31.892823 7f83f3061a80 Options.wal_recovery_mode: 2
+2021/03/14-00:11:31.892823 7f83f3061a80 Options.enable_thread_tracking: 0
+2021/03/14-00:11:31.892824 7f83f3061a80 Options.enable_pipelined_write: 0
+2021/03/14-00:11:31.892825 7f83f3061a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:11:31.892825 7f83f3061a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:11:31.892826 7f83f3061a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:11:31.892826 7f83f3061a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:11:31.892827 7f83f3061a80 Options.row_cache: None
+2021/03/14-00:11:31.892827 7f83f3061a80 Options.wal_filter: None
+2021/03/14-00:11:31.892828 7f83f3061a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:11:31.892829 7f83f3061a80 Options.allow_ingest_behind: 0
+2021/03/14-00:11:31.892829 7f83f3061a80 Options.preserve_deletes: 0
+2021/03/14-00:11:31.892830 7f83f3061a80 Options.two_write_queues: 0
+2021/03/14-00:11:31.892830 7f83f3061a80 Options.manual_wal_flush: 0
+2021/03/14-00:11:31.892831 7f83f3061a80 Options.max_background_jobs: 16
+2021/03/14-00:11:31.892832 7f83f3061a80 Options.max_background_compactions: -1
+2021/03/14-00:11:31.892833 7f83f3061a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:11:31.892833 7f83f3061a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:11:31.892834 7f83f3061a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:11:31.892834 7f83f3061a80 Options.max_total_wal_size: 0
+2021/03/14-00:11:31.892835 7f83f3061a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:11:31.892836 7f83f3061a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:11:31.892836 7f83f3061a80 Options.max_open_files: -1
+2021/03/14-00:11:31.892837 7f83f3061a80 Options.bytes_per_sync: 0
+2021/03/14-00:11:31.892837 7f83f3061a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:11:31.892838 7f83f3061a80 Options.compaction_readahead_size: 0
+2021/03/14-00:11:31.892838 7f83f3061a80 Compression algorithms supported:
+2021/03/14-00:11:31.892839 7f83f3061a80 Snappy supported: 1
+2021/03/14-00:11:31.892840 7f83f3061a80 Zlib supported: 1
+2021/03/14-00:11:31.892840 7f83f3061a80 Bzip supported: 1
+2021/03/14-00:11:31.892841 7f83f3061a80 LZ4 supported: 1
+2021/03/14-00:11:31.892841 7f83f3061a80 ZSTDNotFinal supported: 1
+2021/03/14-00:11:31.892845 7f83f3061a80 ZSTD supported: 1
+2021/03/14-00:11:31.892848 7f83f3061a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:11:31.892849 7f83f3061a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:11:31.892939 7f83f3061a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:11:31.892992 7f83f3061a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:11:31.892994 7f83f3061a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:11:31.892995 7f83f3061a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:11:31.892996 7f83f3061a80 Options.compaction_filter: None
+2021/03/14-00:11:31.892996 7f83f3061a80 Options.compaction_filter_factory: None
+2021/03/14-00:11:31.892997 7f83f3061a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:11:31.892998 7f83f3061a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:11:31.893012 7f83f3061a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2cba520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c9fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:11:31.893013 7f83f3061a80 Options.write_buffer_size: 134217728
+2021/03/14-00:11:31.893013 7f83f3061a80 Options.max_write_buffer_number: 6
+2021/03/14-00:11:31.893014 7f83f3061a80 Options.compression[0]: NoCompression
+2021/03/14-00:11:31.893015 7f83f3061a80 Options.compression[1]: NoCompression
+2021/03/14-00:11:31.893015 7f83f3061a80 Options.compression[2]: Snappy
+2021/03/14-00:11:31.893016 7f83f3061a80 Options.compression[3]: Snappy
+2021/03/14-00:11:31.893017 7f83f3061a80 Options.compression[4]: Snappy
+2021/03/14-00:11:31.893017 7f83f3061a80 Options.compression[5]: Snappy
+2021/03/14-00:11:31.893018 7f83f3061a80 Options.compression[6]: Snappy
+2021/03/14-00:11:31.893018 7f83f3061a80 Options.bottommost_compression: Disabled
+2021/03/14-00:11:31.893019 7f83f3061a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:11:31.893020 7f83f3061a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:11:31.893020 7f83f3061a80 Options.num_levels: 7
+2021/03/14-00:11:31.893021 7f83f3061a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:11:31.893021 7f83f3061a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:11:31.893022 7f83f3061a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:11:31.893022 7f83f3061a80 Options.compression_opts.level: -1
+2021/03/14-00:11:31.893023 7f83f3061a80 Options.compression_opts.strategy: 0
+2021/03/14-00:11:31.893024 7f83f3061a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:11:31.893024 7f83f3061a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:11:31.893025 7f83f3061a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:11:31.893025 7f83f3061a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:11:31.893026 7f83f3061a80 Options.target_file_size_base: 67108864
+2021/03/14-00:11:31.893026 7f83f3061a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:11:31.893027 7f83f3061a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:11:31.893028 7f83f3061a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:11:31.893028 7f83f3061a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:11:31.893030 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:11:31.893037 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:11:31.893038 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:11:31.893039 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:11:31.893039 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:11:31.893040 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:11:31.893040 7f83f3061a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:11:31.893041 7f83f3061a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:11:31.893041 7f83f3061a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:11:31.893042 7f83f3061a80 Options.arena_block_size: 16777216
+2021/03/14-00:11:31.893043 7f83f3061a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:11:31.893043 7f83f3061a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:11:31.893044 7f83f3061a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:11:31.893044 7f83f3061a80 Options.disable_auto_compactions: 0
+2021/03/14-00:11:31.893046 7f83f3061a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:11:31.893047 7f83f3061a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:11:31.893047 7f83f3061a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:11:31.893048 7f83f3061a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:11:31.893049 7f83f3061a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:11:31.893049 7f83f3061a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:11:31.893050 7f83f3061a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:11:31.893051 7f83f3061a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:11:31.893051 7f83f3061a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:11:31.893052 7f83f3061a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:11:31.893053 7f83f3061a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:11:31.893053 7f83f3061a80 Options.table_properties_collectors:
+2021/03/14-00:11:31.893054 7f83f3061a80 Options.inplace_update_support: 0
+2021/03/14-00:11:31.893055 7f83f3061a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:11:31.893055 7f83f3061a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:11:31.893056 7f83f3061a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:11:31.893057 7f83f3061a80 Options.bloom_locality: 0
+2021/03/14-00:11:31.893057 7f83f3061a80 Options.max_successive_merges: 0
+2021/03/14-00:11:31.893058 7f83f3061a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:11:31.893059 7f83f3061a80 Options.paranoid_file_checks: 0
+2021/03/14-00:11:31.893059 7f83f3061a80 Options.force_consistency_checks: 0
+2021/03/14-00:11:31.893060 7f83f3061a80 Options.report_bg_io_stats: 0
+2021/03/14-00:11:31.893446 7f83f3061a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:11:31.893448 7f83f3061a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:11:31.893535 7f83f3061a80 EVENT_LOG_v1 {"time_micros": 1615677091893523, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:11:31.893540 7f83f3061a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:11:32.558482 7f83f3061a80 EVENT_LOG_v1 {"time_micros": 1615677092558479, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677129592474 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677129592474
new file mode 100644
index 0000000..8620d9d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677129592474
@@ -0,0 +1,186 @@
+2021/03/14-00:12:08.898173 7f1a3c3d2a80 RocksDB version: 5.11.3
+2021/03/14-00:12:08.898261 7f1a3c3d2a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:12:08.898264 7f1a3c3d2a80 Compile date Mar 13 2021
+2021/03/14-00:12:08.898267 7f1a3c3d2a80 DB SUMMARY
+2021/03/14-00:12:08.898357 7f1a3c3d2a80 CURRENT file: CURRENT
+2021/03/14-00:12:08.898358 7f1a3c3d2a80 IDENTITY file: IDENTITY
+2021/03/14-00:12:08.898366 7f1a3c3d2a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:12:08.898368 7f1a3c3d2a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:12:08.898369 7f1a3c3d2a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:12:08.898373 7f1a3c3d2a80 Options.error_if_exists: 0
+2021/03/14-00:12:08.898374 7f1a3c3d2a80 Options.create_if_missing: 1
+2021/03/14-00:12:08.898375 7f1a3c3d2a80 Options.paranoid_checks: 1
+2021/03/14-00:12:08.898376 7f1a3c3d2a80 Options.env: 0x7f1a3cd8c080
+2021/03/14-00:12:08.898377 7f1a3c3d2a80 Options.info_log: 0x22b8ca0
+2021/03/14-00:12:08.898377 7f1a3c3d2a80 Options.max_file_opening_threads: 16
+2021/03/14-00:12:08.898378 7f1a3c3d2a80 Options.statistics: (nil)
+2021/03/14-00:12:08.898379 7f1a3c3d2a80 Options.use_fsync: 0
+2021/03/14-00:12:08.898379 7f1a3c3d2a80 Options.max_log_file_size: 0
+2021/03/14-00:12:08.898380 7f1a3c3d2a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:12:08.898381 7f1a3c3d2a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:12:08.898382 7f1a3c3d2a80 Options.keep_log_file_num: 1000
+2021/03/14-00:12:08.898382 7f1a3c3d2a80 Options.recycle_log_file_num: 0
+2021/03/14-00:12:08.898383 7f1a3c3d2a80 Options.allow_fallocate: 1
+2021/03/14-00:12:08.898384 7f1a3c3d2a80 Options.allow_mmap_reads: 0
+2021/03/14-00:12:08.898384 7f1a3c3d2a80 Options.allow_mmap_writes: 0
+2021/03/14-00:12:08.898385 7f1a3c3d2a80 Options.use_direct_reads: 0
+2021/03/14-00:12:08.898386 7f1a3c3d2a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:12:08.898386 7f1a3c3d2a80 Options.create_missing_column_families: 0
+2021/03/14-00:12:08.898387 7f1a3c3d2a80 Options.db_log_dir:
+2021/03/14-00:12:08.898388 7f1a3c3d2a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:12:08.898388 7f1a3c3d2a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:12:08.898389 7f1a3c3d2a80 Options.max_subcompactions: 1
+2021/03/14-00:12:08.898390 7f1a3c3d2a80 Options.max_background_flushes: -1
+2021/03/14-00:12:08.898390 7f1a3c3d2a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:12:08.898391 7f1a3c3d2a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:12:08.898392 7f1a3c3d2a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:12:08.898392 7f1a3c3d2a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:12:08.898393 7f1a3c3d2a80 Options.advise_random_on_open: 1
+2021/03/14-00:12:08.898394 7f1a3c3d2a80 Options.db_write_buffer_size: 0
+2021/03/14-00:12:08.898394 7f1a3c3d2a80 Options.write_buffer_manager: 0x22a0b90
+2021/03/14-00:12:08.898395 7f1a3c3d2a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:12:08.898396 7f1a3c3d2a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:12:08.898396 7f1a3c3d2a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:12:08.898397 7f1a3c3d2a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:12:08.898398 7f1a3c3d2a80 Options.rate_limiter: (nil)
+2021/03/14-00:12:08.898399 7f1a3c3d2a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:12:08.898409 7f1a3c3d2a80 Options.wal_recovery_mode: 2
+2021/03/14-00:12:08.898410 7f1a3c3d2a80 Options.enable_thread_tracking: 0
+2021/03/14-00:12:08.898410 7f1a3c3d2a80 Options.enable_pipelined_write: 0
+2021/03/14-00:12:08.898411 7f1a3c3d2a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:12:08.898412 7f1a3c3d2a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:12:08.898412 7f1a3c3d2a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:12:08.898413 7f1a3c3d2a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:12:08.898414 7f1a3c3d2a80 Options.row_cache: None
+2021/03/14-00:12:08.898414 7f1a3c3d2a80 Options.wal_filter: None
+2021/03/14-00:12:08.898415 7f1a3c3d2a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:12:08.898416 7f1a3c3d2a80 Options.allow_ingest_behind: 0
+2021/03/14-00:12:08.898416 7f1a3c3d2a80 Options.preserve_deletes: 0
+2021/03/14-00:12:08.898417 7f1a3c3d2a80 Options.two_write_queues: 0
+2021/03/14-00:12:08.898418 7f1a3c3d2a80 Options.manual_wal_flush: 0
+2021/03/14-00:12:08.898419 7f1a3c3d2a80 Options.max_background_jobs: 16
+2021/03/14-00:12:08.898420 7f1a3c3d2a80 Options.max_background_compactions: -1
+2021/03/14-00:12:08.898421 7f1a3c3d2a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:12:08.898421 7f1a3c3d2a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:12:08.898422 7f1a3c3d2a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:12:08.898423 7f1a3c3d2a80 Options.max_total_wal_size: 0
+2021/03/14-00:12:08.898423 7f1a3c3d2a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:12:08.898424 7f1a3c3d2a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:12:08.898425 7f1a3c3d2a80 Options.max_open_files: -1
+2021/03/14-00:12:08.898425 7f1a3c3d2a80 Options.bytes_per_sync: 0
+2021/03/14-00:12:08.898426 7f1a3c3d2a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:12:08.898427 7f1a3c3d2a80 Options.compaction_readahead_size: 0
+2021/03/14-00:12:08.898427 7f1a3c3d2a80 Compression algorithms supported:
+2021/03/14-00:12:08.898428 7f1a3c3d2a80 Snappy supported: 1
+2021/03/14-00:12:08.898429 7f1a3c3d2a80 Zlib supported: 1
+2021/03/14-00:12:08.898429 7f1a3c3d2a80 Bzip supported: 1
+2021/03/14-00:12:08.898430 7f1a3c3d2a80 LZ4 supported: 1
+2021/03/14-00:12:08.898431 7f1a3c3d2a80 ZSTDNotFinal supported: 1
+2021/03/14-00:12:08.898437 7f1a3c3d2a80 ZSTD supported: 1
+2021/03/14-00:12:08.898440 7f1a3c3d2a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:12:08.898442 7f1a3c3d2a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:12:08.898587 7f1a3c3d2a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:12:08.898658 7f1a3c3d2a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:12:08.898660 7f1a3c3d2a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:12:08.898661 7f1a3c3d2a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:12:08.898662 7f1a3c3d2a80 Options.compaction_filter: None
+2021/03/14-00:12:08.898662 7f1a3c3d2a80 Options.compaction_filter_factory: None
+2021/03/14-00:12:08.898663 7f1a3c3d2a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:12:08.898664 7f1a3c3d2a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:12:08.898681 7f1a3c3d2a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22b0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2295c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:12:08.898682 7f1a3c3d2a80 Options.write_buffer_size: 134217728
+2021/03/14-00:12:08.898682 7f1a3c3d2a80 Options.max_write_buffer_number: 6
+2021/03/14-00:12:08.898683 7f1a3c3d2a80 Options.compression[0]: NoCompression
+2021/03/14-00:12:08.898684 7f1a3c3d2a80 Options.compression[1]: NoCompression
+2021/03/14-00:12:08.898685 7f1a3c3d2a80 Options.compression[2]: Snappy
+2021/03/14-00:12:08.898686 7f1a3c3d2a80 Options.compression[3]: Snappy
+2021/03/14-00:12:08.898686 7f1a3c3d2a80 Options.compression[4]: Snappy
+2021/03/14-00:12:08.898687 7f1a3c3d2a80 Options.compression[5]: Snappy
+2021/03/14-00:12:08.898688 7f1a3c3d2a80 Options.compression[6]: Snappy
+2021/03/14-00:12:08.898688 7f1a3c3d2a80 Options.bottommost_compression: Disabled
+2021/03/14-00:12:08.898689 7f1a3c3d2a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:12:08.898690 7f1a3c3d2a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:12:08.898690 7f1a3c3d2a80 Options.num_levels: 7
+2021/03/14-00:12:08.898691 7f1a3c3d2a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:12:08.898692 7f1a3c3d2a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:12:08.898692 7f1a3c3d2a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:12:08.898693 7f1a3c3d2a80 Options.compression_opts.level: -1
+2021/03/14-00:12:08.898694 7f1a3c3d2a80 Options.compression_opts.strategy: 0
+2021/03/14-00:12:08.898694 7f1a3c3d2a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:12:08.898695 7f1a3c3d2a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:12:08.898696 7f1a3c3d2a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:12:08.898696 7f1a3c3d2a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:12:08.898697 7f1a3c3d2a80 Options.target_file_size_base: 67108864
+2021/03/14-00:12:08.898698 7f1a3c3d2a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:12:08.898698 7f1a3c3d2a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:12:08.898699 7f1a3c3d2a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:12:08.898700 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:12:08.898702 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:12:08.898711 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:12:08.898712 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:12:08.898712 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:12:08.898713 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:12:08.898714 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:12:08.898714 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:12:08.898715 7f1a3c3d2a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:12:08.898715 7f1a3c3d2a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:12:08.898716 7f1a3c3d2a80 Options.arena_block_size: 16777216
+2021/03/14-00:12:08.898717 7f1a3c3d2a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:12:08.898718 7f1a3c3d2a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:12:08.898718 7f1a3c3d2a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:12:08.898719 7f1a3c3d2a80 Options.disable_auto_compactions: 0
+2021/03/14-00:12:08.898721 7f1a3c3d2a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:12:08.898722 7f1a3c3d2a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:12:08.898723 7f1a3c3d2a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:12:08.898723 7f1a3c3d2a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:12:08.898724 7f1a3c3d2a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:12:08.898725 7f1a3c3d2a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:12:08.898725 7f1a3c3d2a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:12:08.898726 7f1a3c3d2a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:12:08.898727 7f1a3c3d2a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:12:08.898728 7f1a3c3d2a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:12:08.898728 7f1a3c3d2a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:12:08.898729 7f1a3c3d2a80 Options.table_properties_collectors:
+2021/03/14-00:12:08.898730 7f1a3c3d2a80 Options.inplace_update_support: 0
+2021/03/14-00:12:08.898730 7f1a3c3d2a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:12:08.898731 7f1a3c3d2a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:12:08.898732 7f1a3c3d2a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:12:08.898733 7f1a3c3d2a80 Options.bloom_locality: 0
+2021/03/14-00:12:08.898733 7f1a3c3d2a80 Options.max_successive_merges: 0
+2021/03/14-00:12:08.898734 7f1a3c3d2a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:12:08.898735 7f1a3c3d2a80 Options.paranoid_file_checks: 0
+2021/03/14-00:12:08.898735 7f1a3c3d2a80 Options.force_consistency_checks: 0
+2021/03/14-00:12:08.898736 7f1a3c3d2a80 Options.report_bg_io_stats: 0
+2021/03/14-00:12:08.899251 7f1a3c3d2a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:12:08.899254 7f1a3c3d2a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:12:08.899363 7f1a3c3d2a80 EVENT_LOG_v1 {"time_micros": 1615677128899348, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:12:08.899371 7f1a3c3d2a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:12:09.580639 7f1a3c3d2a80 EVENT_LOG_v1 {"time_micros": 1615677129580636, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677130278234 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677130278234
new file mode 100644
index 0000000..0309eae
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677130278234
@@ -0,0 +1,186 @@
+2021/03/14-00:12:09.592793 7f1a3c3d2a80 RocksDB version: 5.11.3
+2021/03/14-00:12:09.592848 7f1a3c3d2a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:12:09.592849 7f1a3c3d2a80 Compile date Mar 13 2021
+2021/03/14-00:12:09.592852 7f1a3c3d2a80 DB SUMMARY
+2021/03/14-00:12:09.592923 7f1a3c3d2a80 CURRENT file: CURRENT
+2021/03/14-00:12:09.592924 7f1a3c3d2a80 IDENTITY file: IDENTITY
+2021/03/14-00:12:09.592931 7f1a3c3d2a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:12:09.592932 7f1a3c3d2a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:12:09.592933 7f1a3c3d2a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:12:09.592937 7f1a3c3d2a80 Options.error_if_exists: 0
+2021/03/14-00:12:09.592938 7f1a3c3d2a80 Options.create_if_missing: 1
+2021/03/14-00:12:09.592938 7f1a3c3d2a80 Options.paranoid_checks: 1
+2021/03/14-00:12:09.592939 7f1a3c3d2a80 Options.env: 0x7f1a3cd8c080
+2021/03/14-00:12:09.592940 7f1a3c3d2a80 Options.info_log: 0x22b8ca0
+2021/03/14-00:12:09.592940 7f1a3c3d2a80 Options.max_file_opening_threads: 16
+2021/03/14-00:12:09.592941 7f1a3c3d2a80 Options.statistics: (nil)
+2021/03/14-00:12:09.592942 7f1a3c3d2a80 Options.use_fsync: 0
+2021/03/14-00:12:09.592942 7f1a3c3d2a80 Options.max_log_file_size: 0
+2021/03/14-00:12:09.592943 7f1a3c3d2a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:12:09.592943 7f1a3c3d2a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:12:09.592944 7f1a3c3d2a80 Options.keep_log_file_num: 1000
+2021/03/14-00:12:09.592945 7f1a3c3d2a80 Options.recycle_log_file_num: 0
+2021/03/14-00:12:09.592945 7f1a3c3d2a80 Options.allow_fallocate: 1
+2021/03/14-00:12:09.592946 7f1a3c3d2a80 Options.allow_mmap_reads: 0
+2021/03/14-00:12:09.592946 7f1a3c3d2a80 Options.allow_mmap_writes: 0
+2021/03/14-00:12:09.592947 7f1a3c3d2a80 Options.use_direct_reads: 0
+2021/03/14-00:12:09.592948 7f1a3c3d2a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:12:09.592948 7f1a3c3d2a80 Options.create_missing_column_families: 0
+2021/03/14-00:12:09.592949 7f1a3c3d2a80 Options.db_log_dir:
+2021/03/14-00:12:09.592949 7f1a3c3d2a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:12:09.592950 7f1a3c3d2a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:12:09.592950 7f1a3c3d2a80 Options.max_subcompactions: 1
+2021/03/14-00:12:09.592951 7f1a3c3d2a80 Options.max_background_flushes: -1
+2021/03/14-00:12:09.592952 7f1a3c3d2a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:12:09.592952 7f1a3c3d2a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:12:09.592953 7f1a3c3d2a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:12:09.592953 7f1a3c3d2a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:12:09.592954 7f1a3c3d2a80 Options.advise_random_on_open: 1
+2021/03/14-00:12:09.592955 7f1a3c3d2a80 Options.db_write_buffer_size: 0
+2021/03/14-00:12:09.592955 7f1a3c3d2a80 Options.write_buffer_manager: 0x22a0b90
+2021/03/14-00:12:09.592956 7f1a3c3d2a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:12:09.592956 7f1a3c3d2a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:12:09.592957 7f1a3c3d2a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:12:09.592957 7f1a3c3d2a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:12:09.592958 7f1a3c3d2a80 Options.rate_limiter: (nil)
+2021/03/14-00:12:09.592959 7f1a3c3d2a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:12:09.592967 7f1a3c3d2a80 Options.wal_recovery_mode: 2
+2021/03/14-00:12:09.592967 7f1a3c3d2a80 Options.enable_thread_tracking: 0
+2021/03/14-00:12:09.592968 7f1a3c3d2a80 Options.enable_pipelined_write: 0
+2021/03/14-00:12:09.592968 7f1a3c3d2a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:12:09.592969 7f1a3c3d2a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:12:09.592969 7f1a3c3d2a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:12:09.592970 7f1a3c3d2a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:12:09.592971 7f1a3c3d2a80 Options.row_cache: None
+2021/03/14-00:12:09.592971 7f1a3c3d2a80 Options.wal_filter: None
+2021/03/14-00:12:09.592972 7f1a3c3d2a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:12:09.592972 7f1a3c3d2a80 Options.allow_ingest_behind: 0
+2021/03/14-00:12:09.592973 7f1a3c3d2a80 Options.preserve_deletes: 0
+2021/03/14-00:12:09.592974 7f1a3c3d2a80 Options.two_write_queues: 0
+2021/03/14-00:12:09.592974 7f1a3c3d2a80 Options.manual_wal_flush: 0
+2021/03/14-00:12:09.592975 7f1a3c3d2a80 Options.max_background_jobs: 16
+2021/03/14-00:12:09.592976 7f1a3c3d2a80 Options.max_background_compactions: -1
+2021/03/14-00:12:09.592976 7f1a3c3d2a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:12:09.592977 7f1a3c3d2a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:12:09.592978 7f1a3c3d2a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:12:09.592978 7f1a3c3d2a80 Options.max_total_wal_size: 0
+2021/03/14-00:12:09.592979 7f1a3c3d2a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:12:09.592979 7f1a3c3d2a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:12:09.592980 7f1a3c3d2a80 Options.max_open_files: -1
+2021/03/14-00:12:09.592981 7f1a3c3d2a80 Options.bytes_per_sync: 0
+2021/03/14-00:12:09.592981 7f1a3c3d2a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:12:09.592982 7f1a3c3d2a80 Options.compaction_readahead_size: 0
+2021/03/14-00:12:09.592982 7f1a3c3d2a80 Compression algorithms supported:
+2021/03/14-00:12:09.592983 7f1a3c3d2a80 Snappy supported: 1
+2021/03/14-00:12:09.592983 7f1a3c3d2a80 Zlib supported: 1
+2021/03/14-00:12:09.592984 7f1a3c3d2a80 Bzip supported: 1
+2021/03/14-00:12:09.592984 7f1a3c3d2a80 LZ4 supported: 1
+2021/03/14-00:12:09.592985 7f1a3c3d2a80 ZSTDNotFinal supported: 1
+2021/03/14-00:12:09.592989 7f1a3c3d2a80 ZSTD supported: 1
+2021/03/14-00:12:09.592992 7f1a3c3d2a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:12:09.592993 7f1a3c3d2a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:12:09.593082 7f1a3c3d2a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:12:09.593136 7f1a3c3d2a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:12:09.593138 7f1a3c3d2a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:12:09.593139 7f1a3c3d2a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:12:09.593140 7f1a3c3d2a80 Options.compaction_filter: None
+2021/03/14-00:12:09.593140 7f1a3c3d2a80 Options.compaction_filter_factory: None
+2021/03/14-00:12:09.593141 7f1a3c3d2a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:12:09.593142 7f1a3c3d2a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:12:09.593156 7f1a3c3d2a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22b0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2295c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:12:09.593157 7f1a3c3d2a80 Options.write_buffer_size: 134217728
+2021/03/14-00:12:09.593157 7f1a3c3d2a80 Options.max_write_buffer_number: 6
+2021/03/14-00:12:09.593158 7f1a3c3d2a80 Options.compression[0]: NoCompression
+2021/03/14-00:12:09.593159 7f1a3c3d2a80 Options.compression[1]: NoCompression
+2021/03/14-00:12:09.593159 7f1a3c3d2a80 Options.compression[2]: Snappy
+2021/03/14-00:12:09.593160 7f1a3c3d2a80 Options.compression[3]: Snappy
+2021/03/14-00:12:09.593160 7f1a3c3d2a80 Options.compression[4]: Snappy
+2021/03/14-00:12:09.593161 7f1a3c3d2a80 Options.compression[5]: Snappy
+2021/03/14-00:12:09.593162 7f1a3c3d2a80 Options.compression[6]: Snappy
+2021/03/14-00:12:09.593162 7f1a3c3d2a80 Options.bottommost_compression: Disabled
+2021/03/14-00:12:09.593163 7f1a3c3d2a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:12:09.593164 7f1a3c3d2a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:12:09.593164 7f1a3c3d2a80 Options.num_levels: 7
+2021/03/14-00:12:09.593165 7f1a3c3d2a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:12:09.593165 7f1a3c3d2a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:12:09.593166 7f1a3c3d2a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:12:09.593167 7f1a3c3d2a80 Options.compression_opts.level: -1
+2021/03/14-00:12:09.593167 7f1a3c3d2a80 Options.compression_opts.strategy: 0
+2021/03/14-00:12:09.593168 7f1a3c3d2a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:12:09.593169 7f1a3c3d2a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:12:09.593169 7f1a3c3d2a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:12:09.593170 7f1a3c3d2a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:12:09.593170 7f1a3c3d2a80 Options.target_file_size_base: 67108864
+2021/03/14-00:12:09.593171 7f1a3c3d2a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:12:09.593172 7f1a3c3d2a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:12:09.593172 7f1a3c3d2a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:12:09.593173 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:12:09.593174 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:12:09.593182 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:12:09.593182 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:12:09.593183 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:12:09.593184 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:12:09.593184 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:12:09.593185 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:12:09.593185 7f1a3c3d2a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:12:09.593186 7f1a3c3d2a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:12:09.593186 7f1a3c3d2a80 Options.arena_block_size: 16777216
+2021/03/14-00:12:09.593187 7f1a3c3d2a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:12:09.593188 7f1a3c3d2a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:12:09.593188 7f1a3c3d2a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:12:09.593189 7f1a3c3d2a80 Options.disable_auto_compactions: 0
+2021/03/14-00:12:09.593190 7f1a3c3d2a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:12:09.593191 7f1a3c3d2a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:12:09.593191 7f1a3c3d2a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:12:09.593192 7f1a3c3d2a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:12:09.593193 7f1a3c3d2a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:12:09.593193 7f1a3c3d2a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:12:09.593194 7f1a3c3d2a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:12:09.593195 7f1a3c3d2a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:12:09.593195 7f1a3c3d2a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:12:09.593196 7f1a3c3d2a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:12:09.593196 7f1a3c3d2a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:12:09.593197 7f1a3c3d2a80 Options.table_properties_collectors:
+2021/03/14-00:12:09.593198 7f1a3c3d2a80 Options.inplace_update_support: 0
+2021/03/14-00:12:09.593198 7f1a3c3d2a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:12:09.593199 7f1a3c3d2a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:12:09.593200 7f1a3c3d2a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:12:09.593200 7f1a3c3d2a80 Options.bloom_locality: 0
+2021/03/14-00:12:09.593201 7f1a3c3d2a80 Options.max_successive_merges: 0
+2021/03/14-00:12:09.593201 7f1a3c3d2a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:12:09.593202 7f1a3c3d2a80 Options.paranoid_file_checks: 0
+2021/03/14-00:12:09.593202 7f1a3c3d2a80 Options.force_consistency_checks: 0
+2021/03/14-00:12:09.593203 7f1a3c3d2a80 Options.report_bg_io_stats: 0
+2021/03/14-00:12:09.593657 7f1a3c3d2a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:12:09.593660 7f1a3c3d2a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:12:09.593743 7f1a3c3d2a80 EVENT_LOG_v1 {"time_micros": 1615677129593733, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:12:09.593748 7f1a3c3d2a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:12:10.266399 7f1a3c3d2a80 EVENT_LOG_v1 {"time_micros": 1615677130266396, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677130968454 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677130968454
new file mode 100644
index 0000000..afa9d0d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677130968454
@@ -0,0 +1,186 @@
+2021/03/14-00:12:10.278572 7f1a3c3d2a80 RocksDB version: 5.11.3
+2021/03/14-00:12:10.278627 7f1a3c3d2a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:12:10.278629 7f1a3c3d2a80 Compile date Mar 13 2021
+2021/03/14-00:12:10.278631 7f1a3c3d2a80 DB SUMMARY
+2021/03/14-00:12:10.278701 7f1a3c3d2a80 CURRENT file: CURRENT
+2021/03/14-00:12:10.278702 7f1a3c3d2a80 IDENTITY file: IDENTITY
+2021/03/14-00:12:10.278709 7f1a3c3d2a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:12:10.278711 7f1a3c3d2a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:12:10.278711 7f1a3c3d2a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:12:10.278716 7f1a3c3d2a80 Options.error_if_exists: 0
+2021/03/14-00:12:10.278716 7f1a3c3d2a80 Options.create_if_missing: 1
+2021/03/14-00:12:10.278717 7f1a3c3d2a80 Options.paranoid_checks: 1
+2021/03/14-00:12:10.278717 7f1a3c3d2a80 Options.env: 0x7f1a3cd8c080
+2021/03/14-00:12:10.278718 7f1a3c3d2a80 Options.info_log: 0x22b8ca0
+2021/03/14-00:12:10.278719 7f1a3c3d2a80 Options.max_file_opening_threads: 16
+2021/03/14-00:12:10.278719 7f1a3c3d2a80 Options.statistics: (nil)
+2021/03/14-00:12:10.278720 7f1a3c3d2a80 Options.use_fsync: 0
+2021/03/14-00:12:10.278721 7f1a3c3d2a80 Options.max_log_file_size: 0
+2021/03/14-00:12:10.278721 7f1a3c3d2a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:12:10.278722 7f1a3c3d2a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:12:10.278722 7f1a3c3d2a80 Options.keep_log_file_num: 1000
+2021/03/14-00:12:10.278723 7f1a3c3d2a80 Options.recycle_log_file_num: 0
+2021/03/14-00:12:10.278724 7f1a3c3d2a80 Options.allow_fallocate: 1
+2021/03/14-00:12:10.278724 7f1a3c3d2a80 Options.allow_mmap_reads: 0
+2021/03/14-00:12:10.278725 7f1a3c3d2a80 Options.allow_mmap_writes: 0
+2021/03/14-00:12:10.278725 7f1a3c3d2a80 Options.use_direct_reads: 0
+2021/03/14-00:12:10.278726 7f1a3c3d2a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:12:10.278726 7f1a3c3d2a80 Options.create_missing_column_families: 0
+2021/03/14-00:12:10.278727 7f1a3c3d2a80 Options.db_log_dir:
+2021/03/14-00:12:10.278727 7f1a3c3d2a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:12:10.278728 7f1a3c3d2a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:12:10.278729 7f1a3c3d2a80 Options.max_subcompactions: 1
+2021/03/14-00:12:10.278729 7f1a3c3d2a80 Options.max_background_flushes: -1
+2021/03/14-00:12:10.278730 7f1a3c3d2a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:12:10.278730 7f1a3c3d2a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:12:10.278731 7f1a3c3d2a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:12:10.278732 7f1a3c3d2a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:12:10.278732 7f1a3c3d2a80 Options.advise_random_on_open: 1
+2021/03/14-00:12:10.278733 7f1a3c3d2a80 Options.db_write_buffer_size: 0
+2021/03/14-00:12:10.278733 7f1a3c3d2a80 Options.write_buffer_manager: 0x22a0b90
+2021/03/14-00:12:10.278734 7f1a3c3d2a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:12:10.278734 7f1a3c3d2a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:12:10.278735 7f1a3c3d2a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:12:10.278735 7f1a3c3d2a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:12:10.278736 7f1a3c3d2a80 Options.rate_limiter: (nil)
+2021/03/14-00:12:10.278737 7f1a3c3d2a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:12:10.278745 7f1a3c3d2a80 Options.wal_recovery_mode: 2
+2021/03/14-00:12:10.278746 7f1a3c3d2a80 Options.enable_thread_tracking: 0
+2021/03/14-00:12:10.278746 7f1a3c3d2a80 Options.enable_pipelined_write: 0
+2021/03/14-00:12:10.278747 7f1a3c3d2a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:12:10.278747 7f1a3c3d2a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:12:10.278748 7f1a3c3d2a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:12:10.278748 7f1a3c3d2a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:12:10.278749 7f1a3c3d2a80 Options.row_cache: None
+2021/03/14-00:12:10.278749 7f1a3c3d2a80 Options.wal_filter: None
+2021/03/14-00:12:10.278750 7f1a3c3d2a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:12:10.278751 7f1a3c3d2a80 Options.allow_ingest_behind: 0
+2021/03/14-00:12:10.278751 7f1a3c3d2a80 Options.preserve_deletes: 0
+2021/03/14-00:12:10.278752 7f1a3c3d2a80 Options.two_write_queues: 0
+2021/03/14-00:12:10.278752 7f1a3c3d2a80 Options.manual_wal_flush: 0
+2021/03/14-00:12:10.278753 7f1a3c3d2a80 Options.max_background_jobs: 16
+2021/03/14-00:12:10.278754 7f1a3c3d2a80 Options.max_background_compactions: -1
+2021/03/14-00:12:10.278755 7f1a3c3d2a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:12:10.278755 7f1a3c3d2a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:12:10.278756 7f1a3c3d2a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:12:10.278756 7f1a3c3d2a80 Options.max_total_wal_size: 0
+2021/03/14-00:12:10.278757 7f1a3c3d2a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:12:10.278758 7f1a3c3d2a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:12:10.278758 7f1a3c3d2a80 Options.max_open_files: -1
+2021/03/14-00:12:10.278759 7f1a3c3d2a80 Options.bytes_per_sync: 0
+2021/03/14-00:12:10.278759 7f1a3c3d2a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:12:10.278760 7f1a3c3d2a80 Options.compaction_readahead_size: 0
+2021/03/14-00:12:10.278760 7f1a3c3d2a80 Compression algorithms supported:
+2021/03/14-00:12:10.278761 7f1a3c3d2a80 Snappy supported: 1
+2021/03/14-00:12:10.278762 7f1a3c3d2a80 Zlib supported: 1
+2021/03/14-00:12:10.278762 7f1a3c3d2a80 Bzip supported: 1
+2021/03/14-00:12:10.278763 7f1a3c3d2a80 LZ4 supported: 1
+2021/03/14-00:12:10.278763 7f1a3c3d2a80 ZSTDNotFinal supported: 1
+2021/03/14-00:12:10.278767 7f1a3c3d2a80 ZSTD supported: 1
+2021/03/14-00:12:10.278770 7f1a3c3d2a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:12:10.278771 7f1a3c3d2a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:12:10.278860 7f1a3c3d2a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:12:10.278925 7f1a3c3d2a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:12:10.278926 7f1a3c3d2a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:12:10.278927 7f1a3c3d2a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:12:10.278928 7f1a3c3d2a80 Options.compaction_filter: None
+2021/03/14-00:12:10.278928 7f1a3c3d2a80 Options.compaction_filter_factory: None
+2021/03/14-00:12:10.278929 7f1a3c3d2a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:12:10.278930 7f1a3c3d2a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:12:10.278943 7f1a3c3d2a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22b0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2295c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:12:10.278944 7f1a3c3d2a80 Options.write_buffer_size: 134217728
+2021/03/14-00:12:10.278944 7f1a3c3d2a80 Options.max_write_buffer_number: 6
+2021/03/14-00:12:10.278945 7f1a3c3d2a80 Options.compression[0]: NoCompression
+2021/03/14-00:12:10.278946 7f1a3c3d2a80 Options.compression[1]: NoCompression
+2021/03/14-00:12:10.278946 7f1a3c3d2a80 Options.compression[2]: Snappy
+2021/03/14-00:12:10.278947 7f1a3c3d2a80 Options.compression[3]: Snappy
+2021/03/14-00:12:10.278947 7f1a3c3d2a80 Options.compression[4]: Snappy
+2021/03/14-00:12:10.278948 7f1a3c3d2a80 Options.compression[5]: Snappy
+2021/03/14-00:12:10.278948 7f1a3c3d2a80 Options.compression[6]: Snappy
+2021/03/14-00:12:10.278949 7f1a3c3d2a80 Options.bottommost_compression: Disabled
+2021/03/14-00:12:10.278950 7f1a3c3d2a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:12:10.278950 7f1a3c3d2a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:12:10.278951 7f1a3c3d2a80 Options.num_levels: 7
+2021/03/14-00:12:10.278952 7f1a3c3d2a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:12:10.278952 7f1a3c3d2a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:12:10.278953 7f1a3c3d2a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:12:10.278953 7f1a3c3d2a80 Options.compression_opts.level: -1
+2021/03/14-00:12:10.278954 7f1a3c3d2a80 Options.compression_opts.strategy: 0
+2021/03/14-00:12:10.278954 7f1a3c3d2a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:12:10.278955 7f1a3c3d2a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:12:10.278955 7f1a3c3d2a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:12:10.278956 7f1a3c3d2a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:12:10.278957 7f1a3c3d2a80 Options.target_file_size_base: 67108864
+2021/03/14-00:12:10.278957 7f1a3c3d2a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:12:10.278958 7f1a3c3d2a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:12:10.278958 7f1a3c3d2a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:12:10.278959 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:12:10.278960 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:12:10.278967 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:12:10.278968 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:12:10.278969 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:12:10.278969 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:12:10.278970 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:12:10.278970 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:12:10.278971 7f1a3c3d2a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:12:10.278971 7f1a3c3d2a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:12:10.278972 7f1a3c3d2a80 Options.arena_block_size: 16777216
+2021/03/14-00:12:10.278972 7f1a3c3d2a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:12:10.278973 7f1a3c3d2a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:12:10.278974 7f1a3c3d2a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:12:10.278974 7f1a3c3d2a80 Options.disable_auto_compactions: 0
+2021/03/14-00:12:10.278976 7f1a3c3d2a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:12:10.278977 7f1a3c3d2a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:12:10.278977 7f1a3c3d2a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:12:10.278978 7f1a3c3d2a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:12:10.278978 7f1a3c3d2a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:12:10.278979 7f1a3c3d2a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:12:10.278979 7f1a3c3d2a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:12:10.278980 7f1a3c3d2a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:12:10.278981 7f1a3c3d2a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:12:10.278981 7f1a3c3d2a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:12:10.278982 7f1a3c3d2a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:12:10.278983 7f1a3c3d2a80 Options.table_properties_collectors:
+2021/03/14-00:12:10.278983 7f1a3c3d2a80 Options.inplace_update_support: 0
+2021/03/14-00:12:10.278984 7f1a3c3d2a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:12:10.278984 7f1a3c3d2a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:12:10.278985 7f1a3c3d2a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:12:10.278986 7f1a3c3d2a80 Options.bloom_locality: 0
+2021/03/14-00:12:10.278986 7f1a3c3d2a80 Options.max_successive_merges: 0
+2021/03/14-00:12:10.278987 7f1a3c3d2a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:12:10.278987 7f1a3c3d2a80 Options.paranoid_file_checks: 0
+2021/03/14-00:12:10.278988 7f1a3c3d2a80 Options.force_consistency_checks: 0
+2021/03/14-00:12:10.278988 7f1a3c3d2a80 Options.report_bg_io_stats: 0
+2021/03/14-00:12:10.279412 7f1a3c3d2a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:12:10.279415 7f1a3c3d2a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:12:10.279498 7f1a3c3d2a80 EVENT_LOG_v1 {"time_micros": 1615677130279488, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:12:10.279503 7f1a3c3d2a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:12:10.956398 7f1a3c3d2a80 EVENT_LOG_v1 {"time_micros": 1615677130956394, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677249759256 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677249759256
new file mode 100644
index 0000000..d1d198d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677249759256
@@ -0,0 +1,186 @@
+2021/03/14-00:12:10.968784 7f1a3c3d2a80 RocksDB version: 5.11.3
+2021/03/14-00:12:10.968840 7f1a3c3d2a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:12:10.968842 7f1a3c3d2a80 Compile date Mar 13 2021
+2021/03/14-00:12:10.968844 7f1a3c3d2a80 DB SUMMARY
+2021/03/14-00:12:10.968916 7f1a3c3d2a80 CURRENT file: CURRENT
+2021/03/14-00:12:10.968917 7f1a3c3d2a80 IDENTITY file: IDENTITY
+2021/03/14-00:12:10.968924 7f1a3c3d2a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:12:10.968925 7f1a3c3d2a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:12:10.968926 7f1a3c3d2a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:12:10.968930 7f1a3c3d2a80 Options.error_if_exists: 0
+2021/03/14-00:12:10.968931 7f1a3c3d2a80 Options.create_if_missing: 1
+2021/03/14-00:12:10.968932 7f1a3c3d2a80 Options.paranoid_checks: 1
+2021/03/14-00:12:10.968932 7f1a3c3d2a80 Options.env: 0x7f1a3cd8c080
+2021/03/14-00:12:10.968933 7f1a3c3d2a80 Options.info_log: 0x22b8ca0
+2021/03/14-00:12:10.968934 7f1a3c3d2a80 Options.max_file_opening_threads: 16
+2021/03/14-00:12:10.968934 7f1a3c3d2a80 Options.statistics: (nil)
+2021/03/14-00:12:10.968935 7f1a3c3d2a80 Options.use_fsync: 0
+2021/03/14-00:12:10.968936 7f1a3c3d2a80 Options.max_log_file_size: 0
+2021/03/14-00:12:10.968936 7f1a3c3d2a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:12:10.968937 7f1a3c3d2a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:12:10.968937 7f1a3c3d2a80 Options.keep_log_file_num: 1000
+2021/03/14-00:12:10.968938 7f1a3c3d2a80 Options.recycle_log_file_num: 0
+2021/03/14-00:12:10.968939 7f1a3c3d2a80 Options.allow_fallocate: 1
+2021/03/14-00:12:10.968939 7f1a3c3d2a80 Options.allow_mmap_reads: 0
+2021/03/14-00:12:10.968940 7f1a3c3d2a80 Options.allow_mmap_writes: 0
+2021/03/14-00:12:10.968940 7f1a3c3d2a80 Options.use_direct_reads: 0
+2021/03/14-00:12:10.968941 7f1a3c3d2a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:12:10.968941 7f1a3c3d2a80 Options.create_missing_column_families: 0
+2021/03/14-00:12:10.968942 7f1a3c3d2a80 Options.db_log_dir:
+2021/03/14-00:12:10.968942 7f1a3c3d2a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:12:10.968943 7f1a3c3d2a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:12:10.968944 7f1a3c3d2a80 Options.max_subcompactions: 1
+2021/03/14-00:12:10.968944 7f1a3c3d2a80 Options.max_background_flushes: -1
+2021/03/14-00:12:10.968945 7f1a3c3d2a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:12:10.968945 7f1a3c3d2a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:12:10.968946 7f1a3c3d2a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:12:10.968947 7f1a3c3d2a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:12:10.968947 7f1a3c3d2a80 Options.advise_random_on_open: 1
+2021/03/14-00:12:10.968948 7f1a3c3d2a80 Options.db_write_buffer_size: 0
+2021/03/14-00:12:10.968948 7f1a3c3d2a80 Options.write_buffer_manager: 0x22a0b90
+2021/03/14-00:12:10.968949 7f1a3c3d2a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:12:10.968949 7f1a3c3d2a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:12:10.968950 7f1a3c3d2a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:12:10.968950 7f1a3c3d2a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:12:10.968951 7f1a3c3d2a80 Options.rate_limiter: (nil)
+2021/03/14-00:12:10.968952 7f1a3c3d2a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:12:10.968960 7f1a3c3d2a80 Options.wal_recovery_mode: 2
+2021/03/14-00:12:10.968960 7f1a3c3d2a80 Options.enable_thread_tracking: 0
+2021/03/14-00:12:10.968961 7f1a3c3d2a80 Options.enable_pipelined_write: 0
+2021/03/14-00:12:10.968962 7f1a3c3d2a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:12:10.968962 7f1a3c3d2a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:12:10.968963 7f1a3c3d2a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:12:10.968963 7f1a3c3d2a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:12:10.968964 7f1a3c3d2a80 Options.row_cache: None
+2021/03/14-00:12:10.968964 7f1a3c3d2a80 Options.wal_filter: None
+2021/03/14-00:12:10.968965 7f1a3c3d2a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:12:10.968965 7f1a3c3d2a80 Options.allow_ingest_behind: 0
+2021/03/14-00:12:10.968966 7f1a3c3d2a80 Options.preserve_deletes: 0
+2021/03/14-00:12:10.968967 7f1a3c3d2a80 Options.two_write_queues: 0
+2021/03/14-00:12:10.968967 7f1a3c3d2a80 Options.manual_wal_flush: 0
+2021/03/14-00:12:10.968968 7f1a3c3d2a80 Options.max_background_jobs: 16
+2021/03/14-00:12:10.968969 7f1a3c3d2a80 Options.max_background_compactions: -1
+2021/03/14-00:12:10.968970 7f1a3c3d2a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:12:10.968970 7f1a3c3d2a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:12:10.968971 7f1a3c3d2a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:12:10.968971 7f1a3c3d2a80 Options.max_total_wal_size: 0
+2021/03/14-00:12:10.968972 7f1a3c3d2a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:12:10.968972 7f1a3c3d2a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:12:10.968973 7f1a3c3d2a80 Options.max_open_files: -1
+2021/03/14-00:12:10.968974 7f1a3c3d2a80 Options.bytes_per_sync: 0
+2021/03/14-00:12:10.968974 7f1a3c3d2a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:12:10.968975 7f1a3c3d2a80 Options.compaction_readahead_size: 0
+2021/03/14-00:12:10.968975 7f1a3c3d2a80 Compression algorithms supported:
+2021/03/14-00:12:10.968976 7f1a3c3d2a80 Snappy supported: 1
+2021/03/14-00:12:10.968976 7f1a3c3d2a80 Zlib supported: 1
+2021/03/14-00:12:10.968977 7f1a3c3d2a80 Bzip supported: 1
+2021/03/14-00:12:10.968978 7f1a3c3d2a80 LZ4 supported: 1
+2021/03/14-00:12:10.968978 7f1a3c3d2a80 ZSTDNotFinal supported: 1
+2021/03/14-00:12:10.968982 7f1a3c3d2a80 ZSTD supported: 1
+2021/03/14-00:12:10.968985 7f1a3c3d2a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:12:10.968986 7f1a3c3d2a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:12:10.969075 7f1a3c3d2a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:12:10.969129 7f1a3c3d2a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:12:10.969131 7f1a3c3d2a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:12:10.969132 7f1a3c3d2a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:12:10.969132 7f1a3c3d2a80 Options.compaction_filter: None
+2021/03/14-00:12:10.969133 7f1a3c3d2a80 Options.compaction_filter_factory: None
+2021/03/14-00:12:10.969133 7f1a3c3d2a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:12:10.969134 7f1a3c3d2a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:12:10.969148 7f1a3c3d2a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22b0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2295c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:12:10.969149 7f1a3c3d2a80 Options.write_buffer_size: 134217728
+2021/03/14-00:12:10.969150 7f1a3c3d2a80 Options.max_write_buffer_number: 6
+2021/03/14-00:12:10.969150 7f1a3c3d2a80 Options.compression[0]: NoCompression
+2021/03/14-00:12:10.969151 7f1a3c3d2a80 Options.compression[1]: NoCompression
+2021/03/14-00:12:10.969152 7f1a3c3d2a80 Options.compression[2]: Snappy
+2021/03/14-00:12:10.969152 7f1a3c3d2a80 Options.compression[3]: Snappy
+2021/03/14-00:12:10.969153 7f1a3c3d2a80 Options.compression[4]: Snappy
+2021/03/14-00:12:10.969154 7f1a3c3d2a80 Options.compression[5]: Snappy
+2021/03/14-00:12:10.969154 7f1a3c3d2a80 Options.compression[6]: Snappy
+2021/03/14-00:12:10.969155 7f1a3c3d2a80 Options.bottommost_compression: Disabled
+2021/03/14-00:12:10.969155 7f1a3c3d2a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:12:10.969156 7f1a3c3d2a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:12:10.969157 7f1a3c3d2a80 Options.num_levels: 7
+2021/03/14-00:12:10.969157 7f1a3c3d2a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:12:10.969158 7f1a3c3d2a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:12:10.969158 7f1a3c3d2a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:12:10.969159 7f1a3c3d2a80 Options.compression_opts.level: -1
+2021/03/14-00:12:10.969159 7f1a3c3d2a80 Options.compression_opts.strategy: 0
+2021/03/14-00:12:10.969160 7f1a3c3d2a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:12:10.969161 7f1a3c3d2a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:12:10.969161 7f1a3c3d2a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:12:10.969162 7f1a3c3d2a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:12:10.969162 7f1a3c3d2a80 Options.target_file_size_base: 67108864
+2021/03/14-00:12:10.969163 7f1a3c3d2a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:12:10.969163 7f1a3c3d2a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:12:10.969164 7f1a3c3d2a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:12:10.969165 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:12:10.969166 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:12:10.969174 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:12:10.969174 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:12:10.969175 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:12:10.969175 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:12:10.969176 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:12:10.969177 7f1a3c3d2a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:12:10.969177 7f1a3c3d2a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:12:10.969178 7f1a3c3d2a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:12:10.969178 7f1a3c3d2a80 Options.arena_block_size: 16777216
+2021/03/14-00:12:10.969179 7f1a3c3d2a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:12:10.969179 7f1a3c3d2a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:12:10.969180 7f1a3c3d2a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:12:10.969181 7f1a3c3d2a80 Options.disable_auto_compactions: 0
+2021/03/14-00:12:10.969182 7f1a3c3d2a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:12:10.969183 7f1a3c3d2a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:12:10.969183 7f1a3c3d2a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:12:10.969184 7f1a3c3d2a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:12:10.969185 7f1a3c3d2a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:12:10.969185 7f1a3c3d2a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:12:10.969186 7f1a3c3d2a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:12:10.969187 7f1a3c3d2a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:12:10.969187 7f1a3c3d2a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:12:10.969188 7f1a3c3d2a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:12:10.969188 7f1a3c3d2a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:12:10.969189 7f1a3c3d2a80 Options.table_properties_collectors:
+2021/03/14-00:12:10.969190 7f1a3c3d2a80 Options.inplace_update_support: 0
+2021/03/14-00:12:10.969190 7f1a3c3d2a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:12:10.969191 7f1a3c3d2a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:12:10.969192 7f1a3c3d2a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:12:10.969192 7f1a3c3d2a80 Options.bloom_locality: 0
+2021/03/14-00:12:10.969193 7f1a3c3d2a80 Options.max_successive_merges: 0
+2021/03/14-00:12:10.969193 7f1a3c3d2a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:12:10.969194 7f1a3c3d2a80 Options.paranoid_file_checks: 0
+2021/03/14-00:12:10.969194 7f1a3c3d2a80 Options.force_consistency_checks: 0
+2021/03/14-00:12:10.969195 7f1a3c3d2a80 Options.report_bg_io_stats: 0
+2021/03/14-00:12:10.969607 7f1a3c3d2a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:12:10.969609 7f1a3c3d2a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:12:10.969693 7f1a3c3d2a80 EVENT_LOG_v1 {"time_micros": 1615677130969683, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:12:10.969699 7f1a3c3d2a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:12:11.642083 7f1a3c3d2a80 EVENT_LOG_v1 {"time_micros": 1615677131642080, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677250454641 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677250454641
new file mode 100644
index 0000000..34e8f10
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677250454641
@@ -0,0 +1,186 @@
+2021/03/14-00:14:09.759702 7f4512f02a80 RocksDB version: 5.11.3
+2021/03/14-00:14:09.759780 7f4512f02a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:14:09.759782 7f4512f02a80 Compile date Mar 13 2021
+2021/03/14-00:14:09.759785 7f4512f02a80 DB SUMMARY
+2021/03/14-00:14:09.759879 7f4512f02a80 CURRENT file: CURRENT
+2021/03/14-00:14:09.759880 7f4512f02a80 IDENTITY file: IDENTITY
+2021/03/14-00:14:09.759889 7f4512f02a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:14:09.759890 7f4512f02a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:14:09.759891 7f4512f02a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:14:09.759896 7f4512f02a80 Options.error_if_exists: 0
+2021/03/14-00:14:09.759897 7f4512f02a80 Options.create_if_missing: 1
+2021/03/14-00:14:09.759898 7f4512f02a80 Options.paranoid_checks: 1
+2021/03/14-00:14:09.759898 7f4512f02a80 Options.env: 0x7f45138bc080
+2021/03/14-00:14:09.759899 7f4512f02a80 Options.info_log: 0x1e82ca0
+2021/03/14-00:14:09.759900 7f4512f02a80 Options.max_file_opening_threads: 16
+2021/03/14-00:14:09.759901 7f4512f02a80 Options.statistics: (nil)
+2021/03/14-00:14:09.759901 7f4512f02a80 Options.use_fsync: 0
+2021/03/14-00:14:09.759902 7f4512f02a80 Options.max_log_file_size: 0
+2021/03/14-00:14:09.759903 7f4512f02a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:14:09.759904 7f4512f02a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:14:09.759904 7f4512f02a80 Options.keep_log_file_num: 1000
+2021/03/14-00:14:09.759905 7f4512f02a80 Options.recycle_log_file_num: 0
+2021/03/14-00:14:09.759906 7f4512f02a80 Options.allow_fallocate: 1
+2021/03/14-00:14:09.759906 7f4512f02a80 Options.allow_mmap_reads: 0
+2021/03/14-00:14:09.759907 7f4512f02a80 Options.allow_mmap_writes: 0
+2021/03/14-00:14:09.759908 7f4512f02a80 Options.use_direct_reads: 0
+2021/03/14-00:14:09.759908 7f4512f02a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:14:09.759909 7f4512f02a80 Options.create_missing_column_families: 0
+2021/03/14-00:14:09.759909 7f4512f02a80 Options.db_log_dir:
+2021/03/14-00:14:09.759910 7f4512f02a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:14:09.759911 7f4512f02a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:14:09.759912 7f4512f02a80 Options.max_subcompactions: 1
+2021/03/14-00:14:09.759912 7f4512f02a80 Options.max_background_flushes: -1
+2021/03/14-00:14:09.759913 7f4512f02a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:14:09.759914 7f4512f02a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:14:09.759915 7f4512f02a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:14:09.759915 7f4512f02a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:14:09.759916 7f4512f02a80 Options.advise_random_on_open: 1
+2021/03/14-00:14:09.759916 7f4512f02a80 Options.db_write_buffer_size: 0
+2021/03/14-00:14:09.759917 7f4512f02a80 Options.write_buffer_manager: 0x1e6ab90
+2021/03/14-00:14:09.759918 7f4512f02a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:14:09.759918 7f4512f02a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:14:09.759919 7f4512f02a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:14:09.759920 7f4512f02a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:14:09.759920 7f4512f02a80 Options.rate_limiter: (nil)
+2021/03/14-00:14:09.759923 7f4512f02a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:14:09.759932 7f4512f02a80 Options.wal_recovery_mode: 2
+2021/03/14-00:14:09.759933 7f4512f02a80 Options.enable_thread_tracking: 0
+2021/03/14-00:14:09.759933 7f4512f02a80 Options.enable_pipelined_write: 0
+2021/03/14-00:14:09.759934 7f4512f02a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:14:09.759935 7f4512f02a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:14:09.759935 7f4512f02a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:14:09.759936 7f4512f02a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:14:09.759937 7f4512f02a80 Options.row_cache: None
+2021/03/14-00:14:09.759937 7f4512f02a80 Options.wal_filter: None
+2021/03/14-00:14:09.759938 7f4512f02a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:14:09.759939 7f4512f02a80 Options.allow_ingest_behind: 0
+2021/03/14-00:14:09.759939 7f4512f02a80 Options.preserve_deletes: 0
+2021/03/14-00:14:09.759940 7f4512f02a80 Options.two_write_queues: 0
+2021/03/14-00:14:09.759941 7f4512f02a80 Options.manual_wal_flush: 0
+2021/03/14-00:14:09.759942 7f4512f02a80 Options.max_background_jobs: 16
+2021/03/14-00:14:09.759943 7f4512f02a80 Options.max_background_compactions: -1
+2021/03/14-00:14:09.759943 7f4512f02a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:14:09.759944 7f4512f02a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:14:09.759945 7f4512f02a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:14:09.759945 7f4512f02a80 Options.max_total_wal_size: 0
+2021/03/14-00:14:09.759946 7f4512f02a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:14:09.759947 7f4512f02a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:14:09.759947 7f4512f02a80 Options.max_open_files: -1
+2021/03/14-00:14:09.759948 7f4512f02a80 Options.bytes_per_sync: 0
+2021/03/14-00:14:09.759949 7f4512f02a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:14:09.759949 7f4512f02a80 Options.compaction_readahead_size: 0
+2021/03/14-00:14:09.759950 7f4512f02a80 Compression algorithms supported:
+2021/03/14-00:14:09.759951 7f4512f02a80 Snappy supported: 1
+2021/03/14-00:14:09.759951 7f4512f02a80 Zlib supported: 1
+2021/03/14-00:14:09.759952 7f4512f02a80 Bzip supported: 1
+2021/03/14-00:14:09.759953 7f4512f02a80 LZ4 supported: 1
+2021/03/14-00:14:09.759953 7f4512f02a80 ZSTDNotFinal supported: 1
+2021/03/14-00:14:09.759959 7f4512f02a80 ZSTD supported: 1
+2021/03/14-00:14:09.759962 7f4512f02a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:14:09.759964 7f4512f02a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:14:09.760109 7f4512f02a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:14:09.760179 7f4512f02a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:14:09.760182 7f4512f02a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:14:09.760183 7f4512f02a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:14:09.760183 7f4512f02a80 Options.compaction_filter: None
+2021/03/14-00:14:09.760184 7f4512f02a80 Options.compaction_filter_factory: None
+2021/03/14-00:14:09.760185 7f4512f02a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:14:09.760186 7f4512f02a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:14:09.760203 7f4512f02a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1e7a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1e5fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:14:09.760204 7f4512f02a80 Options.write_buffer_size: 134217728
+2021/03/14-00:14:09.760204 7f4512f02a80 Options.max_write_buffer_number: 6
+2021/03/14-00:14:09.760205 7f4512f02a80 Options.compression[0]: NoCompression
+2021/03/14-00:14:09.760206 7f4512f02a80 Options.compression[1]: NoCompression
+2021/03/14-00:14:09.760207 7f4512f02a80 Options.compression[2]: Snappy
+2021/03/14-00:14:09.760208 7f4512f02a80 Options.compression[3]: Snappy
+2021/03/14-00:14:09.760208 7f4512f02a80 Options.compression[4]: Snappy
+2021/03/14-00:14:09.760209 7f4512f02a80 Options.compression[5]: Snappy
+2021/03/14-00:14:09.760209 7f4512f02a80 Options.compression[6]: Snappy
+2021/03/14-00:14:09.760210 7f4512f02a80 Options.bottommost_compression: Disabled
+2021/03/14-00:14:09.760211 7f4512f02a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:14:09.760212 7f4512f02a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:14:09.760212 7f4512f02a80 Options.num_levels: 7
+2021/03/14-00:14:09.760213 7f4512f02a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:14:09.760214 7f4512f02a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:14:09.760214 7f4512f02a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:14:09.760215 7f4512f02a80 Options.compression_opts.level: -1
+2021/03/14-00:14:09.760216 7f4512f02a80 Options.compression_opts.strategy: 0
+2021/03/14-00:14:09.760217 7f4512f02a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:14:09.760217 7f4512f02a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:14:09.760218 7f4512f02a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:14:09.760219 7f4512f02a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:14:09.760220 7f4512f02a80 Options.target_file_size_base: 67108864
+2021/03/14-00:14:09.760220 7f4512f02a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:14:09.760221 7f4512f02a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:14:09.760222 7f4512f02a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:14:09.760222 7f4512f02a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:14:09.760224 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:14:09.760233 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:14:09.760234 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:14:09.760235 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:14:09.760235 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:14:09.760236 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:14:09.760237 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:14:09.760245 7f4512f02a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:14:09.760247 7f4512f02a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:14:09.760248 7f4512f02a80 Options.arena_block_size: 16777216
+2021/03/14-00:14:09.760249 7f4512f02a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:14:09.760250 7f4512f02a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:14:09.760250 7f4512f02a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:14:09.760251 7f4512f02a80 Options.disable_auto_compactions: 0
+2021/03/14-00:14:09.760253 7f4512f02a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:14:09.760254 7f4512f02a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:14:09.760255 7f4512f02a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:14:09.760256 7f4512f02a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:14:09.760256 7f4512f02a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:14:09.760257 7f4512f02a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:14:09.760258 7f4512f02a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:14:09.760259 7f4512f02a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:14:09.760259 7f4512f02a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:14:09.760260 7f4512f02a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:14:09.760261 7f4512f02a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:14:09.760261 7f4512f02a80 Options.table_properties_collectors:
+2021/03/14-00:14:09.760262 7f4512f02a80 Options.inplace_update_support: 0
+2021/03/14-00:14:09.760263 7f4512f02a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:14:09.760264 7f4512f02a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:14:09.760265 7f4512f02a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:14:09.760265 7f4512f02a80 Options.bloom_locality: 0
+2021/03/14-00:14:09.760266 7f4512f02a80 Options.max_successive_merges: 0
+2021/03/14-00:14:09.760267 7f4512f02a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:14:09.760267 7f4512f02a80 Options.paranoid_file_checks: 0
+2021/03/14-00:14:09.760268 7f4512f02a80 Options.force_consistency_checks: 0
+2021/03/14-00:14:09.760269 7f4512f02a80 Options.report_bg_io_stats: 0
+2021/03/14-00:14:09.760778 7f4512f02a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:14:09.760782 7f4512f02a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:14:09.760892 7f4512f02a80 EVENT_LOG_v1 {"time_micros": 1615677249760877, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:14:09.760899 7f4512f02a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:14:10.442607 7f4512f02a80 EVENT_LOG_v1 {"time_micros": 1615677250442603, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677251146085 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677251146085
new file mode 100644
index 0000000..2d49e90
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677251146085
@@ -0,0 +1,186 @@
+2021/03/14-00:14:10.455030 7f4512f02a80 RocksDB version: 5.11.3
+2021/03/14-00:14:10.455086 7f4512f02a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:14:10.455088 7f4512f02a80 Compile date Mar 13 2021
+2021/03/14-00:14:10.455090 7f4512f02a80 DB SUMMARY
+2021/03/14-00:14:10.455167 7f4512f02a80 CURRENT file: CURRENT
+2021/03/14-00:14:10.455168 7f4512f02a80 IDENTITY file: IDENTITY
+2021/03/14-00:14:10.455175 7f4512f02a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:14:10.455176 7f4512f02a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:14:10.455177 7f4512f02a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:14:10.455182 7f4512f02a80 Options.error_if_exists: 0
+2021/03/14-00:14:10.455182 7f4512f02a80 Options.create_if_missing: 1
+2021/03/14-00:14:10.455183 7f4512f02a80 Options.paranoid_checks: 1
+2021/03/14-00:14:10.455184 7f4512f02a80 Options.env: 0x7f45138bc080
+2021/03/14-00:14:10.455184 7f4512f02a80 Options.info_log: 0x1e82ca0
+2021/03/14-00:14:10.455185 7f4512f02a80 Options.max_file_opening_threads: 16
+2021/03/14-00:14:10.455185 7f4512f02a80 Options.statistics: (nil)
+2021/03/14-00:14:10.455186 7f4512f02a80 Options.use_fsync: 0
+2021/03/14-00:14:10.455187 7f4512f02a80 Options.max_log_file_size: 0
+2021/03/14-00:14:10.455187 7f4512f02a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:14:10.455188 7f4512f02a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:14:10.455188 7f4512f02a80 Options.keep_log_file_num: 1000
+2021/03/14-00:14:10.455189 7f4512f02a80 Options.recycle_log_file_num: 0
+2021/03/14-00:14:10.455190 7f4512f02a80 Options.allow_fallocate: 1
+2021/03/14-00:14:10.455190 7f4512f02a80 Options.allow_mmap_reads: 0
+2021/03/14-00:14:10.455191 7f4512f02a80 Options.allow_mmap_writes: 0
+2021/03/14-00:14:10.455191 7f4512f02a80 Options.use_direct_reads: 0
+2021/03/14-00:14:10.455192 7f4512f02a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:14:10.455192 7f4512f02a80 Options.create_missing_column_families: 0
+2021/03/14-00:14:10.455193 7f4512f02a80 Options.db_log_dir:
+2021/03/14-00:14:10.455193 7f4512f02a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:14:10.455194 7f4512f02a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:14:10.455195 7f4512f02a80 Options.max_subcompactions: 1
+2021/03/14-00:14:10.455195 7f4512f02a80 Options.max_background_flushes: -1
+2021/03/14-00:14:10.455196 7f4512f02a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:14:10.455196 7f4512f02a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:14:10.455197 7f4512f02a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:14:10.455198 7f4512f02a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:14:10.455198 7f4512f02a80 Options.advise_random_on_open: 1
+2021/03/14-00:14:10.455199 7f4512f02a80 Options.db_write_buffer_size: 0
+2021/03/14-00:14:10.455199 7f4512f02a80 Options.write_buffer_manager: 0x1e6ab90
+2021/03/14-00:14:10.455200 7f4512f02a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:14:10.455200 7f4512f02a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:14:10.455201 7f4512f02a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:14:10.455201 7f4512f02a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:14:10.455202 7f4512f02a80 Options.rate_limiter: (nil)
+2021/03/14-00:14:10.455203 7f4512f02a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:14:10.455211 7f4512f02a80 Options.wal_recovery_mode: 2
+2021/03/14-00:14:10.455212 7f4512f02a80 Options.enable_thread_tracking: 0
+2021/03/14-00:14:10.455212 7f4512f02a80 Options.enable_pipelined_write: 0
+2021/03/14-00:14:10.455213 7f4512f02a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:14:10.455214 7f4512f02a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:14:10.455214 7f4512f02a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:14:10.455215 7f4512f02a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:14:10.455215 7f4512f02a80 Options.row_cache: None
+2021/03/14-00:14:10.455216 7f4512f02a80 Options.wal_filter: None
+2021/03/14-00:14:10.455216 7f4512f02a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:14:10.455217 7f4512f02a80 Options.allow_ingest_behind: 0
+2021/03/14-00:14:10.455218 7f4512f02a80 Options.preserve_deletes: 0
+2021/03/14-00:14:10.455218 7f4512f02a80 Options.two_write_queues: 0
+2021/03/14-00:14:10.455219 7f4512f02a80 Options.manual_wal_flush: 0
+2021/03/14-00:14:10.455220 7f4512f02a80 Options.max_background_jobs: 16
+2021/03/14-00:14:10.455220 7f4512f02a80 Options.max_background_compactions: -1
+2021/03/14-00:14:10.455221 7f4512f02a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:14:10.455221 7f4512f02a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:14:10.455222 7f4512f02a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:14:10.455223 7f4512f02a80 Options.max_total_wal_size: 0
+2021/03/14-00:14:10.455223 7f4512f02a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:14:10.455224 7f4512f02a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:14:10.455224 7f4512f02a80 Options.max_open_files: -1
+2021/03/14-00:14:10.455225 7f4512f02a80 Options.bytes_per_sync: 0
+2021/03/14-00:14:10.455225 7f4512f02a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:14:10.455226 7f4512f02a80 Options.compaction_readahead_size: 0
+2021/03/14-00:14:10.455227 7f4512f02a80 Compression algorithms supported:
+2021/03/14-00:14:10.455227 7f4512f02a80 Snappy supported: 1
+2021/03/14-00:14:10.455228 7f4512f02a80 Zlib supported: 1
+2021/03/14-00:14:10.455228 7f4512f02a80 Bzip supported: 1
+2021/03/14-00:14:10.455229 7f4512f02a80 LZ4 supported: 1
+2021/03/14-00:14:10.455229 7f4512f02a80 ZSTDNotFinal supported: 1
+2021/03/14-00:14:10.455233 7f4512f02a80 ZSTD supported: 1
+2021/03/14-00:14:10.455236 7f4512f02a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:14:10.455245 7f4512f02a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:14:10.455348 7f4512f02a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:14:10.455400 7f4512f02a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:14:10.455402 7f4512f02a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:14:10.455403 7f4512f02a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:14:10.455403 7f4512f02a80 Options.compaction_filter: None
+2021/03/14-00:14:10.455404 7f4512f02a80 Options.compaction_filter_factory: None
+2021/03/14-00:14:10.455404 7f4512f02a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:14:10.455405 7f4512f02a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:14:10.455418 7f4512f02a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1e7a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1e5fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:14:10.455419 7f4512f02a80 Options.write_buffer_size: 134217728
+2021/03/14-00:14:10.455420 7f4512f02a80 Options.max_write_buffer_number: 6
+2021/03/14-00:14:10.455421 7f4512f02a80 Options.compression[0]: NoCompression
+2021/03/14-00:14:10.455421 7f4512f02a80 Options.compression[1]: NoCompression
+2021/03/14-00:14:10.455422 7f4512f02a80 Options.compression[2]: Snappy
+2021/03/14-00:14:10.455423 7f4512f02a80 Options.compression[3]: Snappy
+2021/03/14-00:14:10.455423 7f4512f02a80 Options.compression[4]: Snappy
+2021/03/14-00:14:10.455424 7f4512f02a80 Options.compression[5]: Snappy
+2021/03/14-00:14:10.455424 7f4512f02a80 Options.compression[6]: Snappy
+2021/03/14-00:14:10.455425 7f4512f02a80 Options.bottommost_compression: Disabled
+2021/03/14-00:14:10.455426 7f4512f02a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:14:10.455426 7f4512f02a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:14:10.455427 7f4512f02a80 Options.num_levels: 7
+2021/03/14-00:14:10.455427 7f4512f02a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:14:10.455428 7f4512f02a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:14:10.455428 7f4512f02a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:14:10.455429 7f4512f02a80 Options.compression_opts.level: -1
+2021/03/14-00:14:10.455429 7f4512f02a80 Options.compression_opts.strategy: 0
+2021/03/14-00:14:10.455430 7f4512f02a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:14:10.455430 7f4512f02a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:14:10.455431 7f4512f02a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:14:10.455432 7f4512f02a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:14:10.455432 7f4512f02a80 Options.target_file_size_base: 67108864
+2021/03/14-00:14:10.455433 7f4512f02a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:14:10.455433 7f4512f02a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:14:10.455434 7f4512f02a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:14:10.455434 7f4512f02a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:14:10.455436 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:14:10.455443 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:14:10.455444 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:14:10.455445 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:14:10.455445 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:14:10.455446 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:14:10.455446 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:14:10.455447 7f4512f02a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:14:10.455447 7f4512f02a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:14:10.455448 7f4512f02a80 Options.arena_block_size: 16777216
+2021/03/14-00:14:10.455449 7f4512f02a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:14:10.455449 7f4512f02a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:14:10.455450 7f4512f02a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:14:10.455450 7f4512f02a80 Options.disable_auto_compactions: 0
+2021/03/14-00:14:10.455452 7f4512f02a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:14:10.455452 7f4512f02a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:14:10.455453 7f4512f02a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:14:10.455454 7f4512f02a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:14:10.455454 7f4512f02a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:14:10.455455 7f4512f02a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:14:10.455455 7f4512f02a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:14:10.455456 7f4512f02a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:14:10.455457 7f4512f02a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:14:10.455457 7f4512f02a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:14:10.455458 7f4512f02a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:14:10.455458 7f4512f02a80 Options.table_properties_collectors:
+2021/03/14-00:14:10.455459 7f4512f02a80 Options.inplace_update_support: 0
+2021/03/14-00:14:10.455459 7f4512f02a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:14:10.455460 7f4512f02a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:14:10.455461 7f4512f02a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:14:10.455461 7f4512f02a80 Options.bloom_locality: 0
+2021/03/14-00:14:10.455462 7f4512f02a80 Options.max_successive_merges: 0
+2021/03/14-00:14:10.455462 7f4512f02a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:14:10.455463 7f4512f02a80 Options.paranoid_file_checks: 0
+2021/03/14-00:14:10.455463 7f4512f02a80 Options.force_consistency_checks: 0
+2021/03/14-00:14:10.455464 7f4512f02a80 Options.report_bg_io_stats: 0
+2021/03/14-00:14:10.455984 7f4512f02a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:14:10.455987 7f4512f02a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:14:10.456074 7f4512f02a80 EVENT_LOG_v1 {"time_micros": 1615677250456064, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:14:10.456080 7f4512f02a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:14:11.133952 7f4512f02a80 EVENT_LOG_v1 {"time_micros": 1615677251133948, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677251832421 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677251832421
new file mode 100644
index 0000000..bfc50c5
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677251832421
@@ -0,0 +1,186 @@
+2021/03/14-00:14:11.146426 7f4512f02a80 RocksDB version: 5.11.3
+2021/03/14-00:14:11.146481 7f4512f02a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:14:11.146482 7f4512f02a80 Compile date Mar 13 2021
+2021/03/14-00:14:11.146485 7f4512f02a80 DB SUMMARY
+2021/03/14-00:14:11.146562 7f4512f02a80 CURRENT file: CURRENT
+2021/03/14-00:14:11.146563 7f4512f02a80 IDENTITY file: IDENTITY
+2021/03/14-00:14:11.146570 7f4512f02a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:14:11.146572 7f4512f02a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:14:11.146572 7f4512f02a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:14:11.146575 7f4512f02a80 Options.error_if_exists: 0
+2021/03/14-00:14:11.146576 7f4512f02a80 Options.create_if_missing: 1
+2021/03/14-00:14:11.146577 7f4512f02a80 Options.paranoid_checks: 1
+2021/03/14-00:14:11.146577 7f4512f02a80 Options.env: 0x7f45138bc080
+2021/03/14-00:14:11.146578 7f4512f02a80 Options.info_log: 0x1e82ca0
+2021/03/14-00:14:11.146579 7f4512f02a80 Options.max_file_opening_threads: 16
+2021/03/14-00:14:11.146579 7f4512f02a80 Options.statistics: (nil)
+2021/03/14-00:14:11.146580 7f4512f02a80 Options.use_fsync: 0
+2021/03/14-00:14:11.146580 7f4512f02a80 Options.max_log_file_size: 0
+2021/03/14-00:14:11.146581 7f4512f02a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:14:11.146582 7f4512f02a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:14:11.146582 7f4512f02a80 Options.keep_log_file_num: 1000
+2021/03/14-00:14:11.146583 7f4512f02a80 Options.recycle_log_file_num: 0
+2021/03/14-00:14:11.146583 7f4512f02a80 Options.allow_fallocate: 1
+2021/03/14-00:14:11.146584 7f4512f02a80 Options.allow_mmap_reads: 0
+2021/03/14-00:14:11.146584 7f4512f02a80 Options.allow_mmap_writes: 0
+2021/03/14-00:14:11.146585 7f4512f02a80 Options.use_direct_reads: 0
+2021/03/14-00:14:11.146585 7f4512f02a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:14:11.146586 7f4512f02a80 Options.create_missing_column_families: 0
+2021/03/14-00:14:11.146587 7f4512f02a80 Options.db_log_dir:
+2021/03/14-00:14:11.146587 7f4512f02a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:14:11.146588 7f4512f02a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:14:11.146588 7f4512f02a80 Options.max_subcompactions: 1
+2021/03/14-00:14:11.146589 7f4512f02a80 Options.max_background_flushes: -1
+2021/03/14-00:14:11.146589 7f4512f02a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:14:11.146590 7f4512f02a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:14:11.146591 7f4512f02a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:14:11.146591 7f4512f02a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:14:11.146592 7f4512f02a80 Options.advise_random_on_open: 1
+2021/03/14-00:14:11.146592 7f4512f02a80 Options.db_write_buffer_size: 0
+2021/03/14-00:14:11.146593 7f4512f02a80 Options.write_buffer_manager: 0x1e6ab90
+2021/03/14-00:14:11.146593 7f4512f02a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:14:11.146594 7f4512f02a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:14:11.146595 7f4512f02a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:14:11.146595 7f4512f02a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:14:11.146596 7f4512f02a80 Options.rate_limiter: (nil)
+2021/03/14-00:14:11.146597 7f4512f02a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:14:11.146605 7f4512f02a80 Options.wal_recovery_mode: 2
+2021/03/14-00:14:11.146605 7f4512f02a80 Options.enable_thread_tracking: 0
+2021/03/14-00:14:11.146606 7f4512f02a80 Options.enable_pipelined_write: 0
+2021/03/14-00:14:11.146607 7f4512f02a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:14:11.146607 7f4512f02a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:14:11.146608 7f4512f02a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:14:11.146608 7f4512f02a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:14:11.146609 7f4512f02a80 Options.row_cache: None
+2021/03/14-00:14:11.146609 7f4512f02a80 Options.wal_filter: None
+2021/03/14-00:14:11.146610 7f4512f02a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:14:11.146611 7f4512f02a80 Options.allow_ingest_behind: 0
+2021/03/14-00:14:11.146611 7f4512f02a80 Options.preserve_deletes: 0
+2021/03/14-00:14:11.146612 7f4512f02a80 Options.two_write_queues: 0
+2021/03/14-00:14:11.146612 7f4512f02a80 Options.manual_wal_flush: 0
+2021/03/14-00:14:11.146613 7f4512f02a80 Options.max_background_jobs: 16
+2021/03/14-00:14:11.146614 7f4512f02a80 Options.max_background_compactions: -1
+2021/03/14-00:14:11.146615 7f4512f02a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:14:11.146615 7f4512f02a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:14:11.146616 7f4512f02a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:14:11.146616 7f4512f02a80 Options.max_total_wal_size: 0
+2021/03/14-00:14:11.146617 7f4512f02a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:14:11.146617 7f4512f02a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:14:11.146618 7f4512f02a80 Options.max_open_files: -1
+2021/03/14-00:14:11.146619 7f4512f02a80 Options.bytes_per_sync: 0
+2021/03/14-00:14:11.146619 7f4512f02a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:14:11.146620 7f4512f02a80 Options.compaction_readahead_size: 0
+2021/03/14-00:14:11.146620 7f4512f02a80 Compression algorithms supported:
+2021/03/14-00:14:11.146621 7f4512f02a80 Snappy supported: 1
+2021/03/14-00:14:11.146621 7f4512f02a80 Zlib supported: 1
+2021/03/14-00:14:11.146622 7f4512f02a80 Bzip supported: 1
+2021/03/14-00:14:11.146622 7f4512f02a80 LZ4 supported: 1
+2021/03/14-00:14:11.146623 7f4512f02a80 ZSTDNotFinal supported: 1
+2021/03/14-00:14:11.146627 7f4512f02a80 ZSTD supported: 1
+2021/03/14-00:14:11.146630 7f4512f02a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:14:11.146631 7f4512f02a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:14:11.146717 7f4512f02a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:14:11.146769 7f4512f02a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:14:11.146771 7f4512f02a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:14:11.146772 7f4512f02a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:14:11.146773 7f4512f02a80 Options.compaction_filter: None
+2021/03/14-00:14:11.146773 7f4512f02a80 Options.compaction_filter_factory: None
+2021/03/14-00:14:11.146774 7f4512f02a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:14:11.146775 7f4512f02a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:14:11.146789 7f4512f02a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1e7a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1e5fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:14:11.146790 7f4512f02a80 Options.write_buffer_size: 134217728
+2021/03/14-00:14:11.146790 7f4512f02a80 Options.max_write_buffer_number: 6
+2021/03/14-00:14:11.146791 7f4512f02a80 Options.compression[0]: NoCompression
+2021/03/14-00:14:11.146792 7f4512f02a80 Options.compression[1]: NoCompression
+2021/03/14-00:14:11.146793 7f4512f02a80 Options.compression[2]: Snappy
+2021/03/14-00:14:11.146793 7f4512f02a80 Options.compression[3]: Snappy
+2021/03/14-00:14:11.146794 7f4512f02a80 Options.compression[4]: Snappy
+2021/03/14-00:14:11.146794 7f4512f02a80 Options.compression[5]: Snappy
+2021/03/14-00:14:11.146795 7f4512f02a80 Options.compression[6]: Snappy
+2021/03/14-00:14:11.146796 7f4512f02a80 Options.bottommost_compression: Disabled
+2021/03/14-00:14:11.146796 7f4512f02a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:14:11.146797 7f4512f02a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:14:11.146798 7f4512f02a80 Options.num_levels: 7
+2021/03/14-00:14:11.146798 7f4512f02a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:14:11.146799 7f4512f02a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:14:11.146799 7f4512f02a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:14:11.146800 7f4512f02a80 Options.compression_opts.level: -1
+2021/03/14-00:14:11.146800 7f4512f02a80 Options.compression_opts.strategy: 0
+2021/03/14-00:14:11.146801 7f4512f02a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:14:11.146802 7f4512f02a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:14:11.146802 7f4512f02a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:14:11.146803 7f4512f02a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:14:11.146803 7f4512f02a80 Options.target_file_size_base: 67108864
+2021/03/14-00:14:11.146804 7f4512f02a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:14:11.146804 7f4512f02a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:14:11.146805 7f4512f02a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:14:11.146806 7f4512f02a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:14:11.146807 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:14:11.146814 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:14:11.146815 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:14:11.146816 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:14:11.146816 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:14:11.146817 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:14:11.146817 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:14:11.146818 7f4512f02a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:14:11.146819 7f4512f02a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:14:11.146819 7f4512f02a80 Options.arena_block_size: 16777216
+2021/03/14-00:14:11.146820 7f4512f02a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:14:11.146820 7f4512f02a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:14:11.146821 7f4512f02a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:14:11.146821 7f4512f02a80 Options.disable_auto_compactions: 0
+2021/03/14-00:14:11.146823 7f4512f02a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:14:11.146824 7f4512f02a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:14:11.146824 7f4512f02a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:14:11.146825 7f4512f02a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:14:11.146826 7f4512f02a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:14:11.146826 7f4512f02a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:14:11.146827 7f4512f02a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:14:11.146828 7f4512f02a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:14:11.146828 7f4512f02a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:14:11.146829 7f4512f02a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:14:11.146830 7f4512f02a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:14:11.146830 7f4512f02a80 Options.table_properties_collectors:
+2021/03/14-00:14:11.146831 7f4512f02a80 Options.inplace_update_support: 0
+2021/03/14-00:14:11.146831 7f4512f02a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:14:11.146832 7f4512f02a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:14:11.146833 7f4512f02a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:14:11.146833 7f4512f02a80 Options.bloom_locality: 0
+2021/03/14-00:14:11.146834 7f4512f02a80 Options.max_successive_merges: 0
+2021/03/14-00:14:11.146834 7f4512f02a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:14:11.146835 7f4512f02a80 Options.paranoid_file_checks: 0
+2021/03/14-00:14:11.146835 7f4512f02a80 Options.force_consistency_checks: 0
+2021/03/14-00:14:11.146836 7f4512f02a80 Options.report_bg_io_stats: 0
+2021/03/14-00:14:11.147205 7f4512f02a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:14:11.147208 7f4512f02a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:14:11.147310 7f4512f02a80 EVENT_LOG_v1 {"time_micros": 1615677251147300, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:14:11.147315 7f4512f02a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:14:11.820430 7f4512f02a80 EVENT_LOG_v1 {"time_micros": 1615677251820426, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677745419082 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677745419082
new file mode 100644
index 0000000..bd1ce6e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677745419082
@@ -0,0 +1,186 @@
+2021/03/14-00:14:11.832748 7f4512f02a80 RocksDB version: 5.11.3
+2021/03/14-00:14:11.832803 7f4512f02a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:14:11.832805 7f4512f02a80 Compile date Mar 13 2021
+2021/03/14-00:14:11.832807 7f4512f02a80 DB SUMMARY
+2021/03/14-00:14:11.832885 7f4512f02a80 CURRENT file: CURRENT
+2021/03/14-00:14:11.832886 7f4512f02a80 IDENTITY file: IDENTITY
+2021/03/14-00:14:11.832893 7f4512f02a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:14:11.832894 7f4512f02a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:14:11.832895 7f4512f02a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:14:11.832898 7f4512f02a80 Options.error_if_exists: 0
+2021/03/14-00:14:11.832898 7f4512f02a80 Options.create_if_missing: 1
+2021/03/14-00:14:11.832899 7f4512f02a80 Options.paranoid_checks: 1
+2021/03/14-00:14:11.832900 7f4512f02a80 Options.env: 0x7f45138bc080
+2021/03/14-00:14:11.832900 7f4512f02a80 Options.info_log: 0x1e82ca0
+2021/03/14-00:14:11.832901 7f4512f02a80 Options.max_file_opening_threads: 16
+2021/03/14-00:14:11.832901 7f4512f02a80 Options.statistics: (nil)
+2021/03/14-00:14:11.832902 7f4512f02a80 Options.use_fsync: 0
+2021/03/14-00:14:11.832903 7f4512f02a80 Options.max_log_file_size: 0
+2021/03/14-00:14:11.832903 7f4512f02a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:14:11.832904 7f4512f02a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:14:11.832904 7f4512f02a80 Options.keep_log_file_num: 1000
+2021/03/14-00:14:11.832905 7f4512f02a80 Options.recycle_log_file_num: 0
+2021/03/14-00:14:11.832906 7f4512f02a80 Options.allow_fallocate: 1
+2021/03/14-00:14:11.832906 7f4512f02a80 Options.allow_mmap_reads: 0
+2021/03/14-00:14:11.832907 7f4512f02a80 Options.allow_mmap_writes: 0
+2021/03/14-00:14:11.832907 7f4512f02a80 Options.use_direct_reads: 0
+2021/03/14-00:14:11.832908 7f4512f02a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:14:11.832908 7f4512f02a80 Options.create_missing_column_families: 0
+2021/03/14-00:14:11.832909 7f4512f02a80 Options.db_log_dir:
+2021/03/14-00:14:11.832909 7f4512f02a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:14:11.832910 7f4512f02a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:14:11.832911 7f4512f02a80 Options.max_subcompactions: 1
+2021/03/14-00:14:11.832911 7f4512f02a80 Options.max_background_flushes: -1
+2021/03/14-00:14:11.832912 7f4512f02a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:14:11.832912 7f4512f02a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:14:11.832913 7f4512f02a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:14:11.832914 7f4512f02a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:14:11.832914 7f4512f02a80 Options.advise_random_on_open: 1
+2021/03/14-00:14:11.832915 7f4512f02a80 Options.db_write_buffer_size: 0
+2021/03/14-00:14:11.832915 7f4512f02a80 Options.write_buffer_manager: 0x1e6ab90
+2021/03/14-00:14:11.832916 7f4512f02a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:14:11.832916 7f4512f02a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:14:11.832917 7f4512f02a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:14:11.832917 7f4512f02a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:14:11.832918 7f4512f02a80 Options.rate_limiter: (nil)
+2021/03/14-00:14:11.832919 7f4512f02a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:14:11.832927 7f4512f02a80 Options.wal_recovery_mode: 2
+2021/03/14-00:14:11.832928 7f4512f02a80 Options.enable_thread_tracking: 0
+2021/03/14-00:14:11.832928 7f4512f02a80 Options.enable_pipelined_write: 0
+2021/03/14-00:14:11.832929 7f4512f02a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:14:11.832929 7f4512f02a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:14:11.832930 7f4512f02a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:14:11.832931 7f4512f02a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:14:11.832931 7f4512f02a80 Options.row_cache: None
+2021/03/14-00:14:11.832932 7f4512f02a80 Options.wal_filter: None
+2021/03/14-00:14:11.832932 7f4512f02a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:14:11.832933 7f4512f02a80 Options.allow_ingest_behind: 0
+2021/03/14-00:14:11.832934 7f4512f02a80 Options.preserve_deletes: 0
+2021/03/14-00:14:11.832934 7f4512f02a80 Options.two_write_queues: 0
+2021/03/14-00:14:11.832935 7f4512f02a80 Options.manual_wal_flush: 0
+2021/03/14-00:14:11.832936 7f4512f02a80 Options.max_background_jobs: 16
+2021/03/14-00:14:11.832936 7f4512f02a80 Options.max_background_compactions: -1
+2021/03/14-00:14:11.832937 7f4512f02a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:14:11.832937 7f4512f02a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:14:11.832938 7f4512f02a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:14:11.832939 7f4512f02a80 Options.max_total_wal_size: 0
+2021/03/14-00:14:11.832939 7f4512f02a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:14:11.832940 7f4512f02a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:14:11.832940 7f4512f02a80 Options.max_open_files: -1
+2021/03/14-00:14:11.832941 7f4512f02a80 Options.bytes_per_sync: 0
+2021/03/14-00:14:11.832942 7f4512f02a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:14:11.832942 7f4512f02a80 Options.compaction_readahead_size: 0
+2021/03/14-00:14:11.832943 7f4512f02a80 Compression algorithms supported:
+2021/03/14-00:14:11.832943 7f4512f02a80 Snappy supported: 1
+2021/03/14-00:14:11.832944 7f4512f02a80 Zlib supported: 1
+2021/03/14-00:14:11.832944 7f4512f02a80 Bzip supported: 1
+2021/03/14-00:14:11.832945 7f4512f02a80 LZ4 supported: 1
+2021/03/14-00:14:11.832945 7f4512f02a80 ZSTDNotFinal supported: 1
+2021/03/14-00:14:11.832949 7f4512f02a80 ZSTD supported: 1
+2021/03/14-00:14:11.832952 7f4512f02a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:14:11.832954 7f4512f02a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:14:11.833040 7f4512f02a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:14:11.833093 7f4512f02a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:14:11.833095 7f4512f02a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:14:11.833095 7f4512f02a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:14:11.833096 7f4512f02a80 Options.compaction_filter: None
+2021/03/14-00:14:11.833097 7f4512f02a80 Options.compaction_filter_factory: None
+2021/03/14-00:14:11.833097 7f4512f02a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:14:11.833098 7f4512f02a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:14:11.833111 7f4512f02a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1e7a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1e5fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:14:11.833111 7f4512f02a80 Options.write_buffer_size: 134217728
+2021/03/14-00:14:11.833112 7f4512f02a80 Options.max_write_buffer_number: 6
+2021/03/14-00:14:11.833113 7f4512f02a80 Options.compression[0]: NoCompression
+2021/03/14-00:14:11.833114 7f4512f02a80 Options.compression[1]: NoCompression
+2021/03/14-00:14:11.833114 7f4512f02a80 Options.compression[2]: Snappy
+2021/03/14-00:14:11.833115 7f4512f02a80 Options.compression[3]: Snappy
+2021/03/14-00:14:11.833115 7f4512f02a80 Options.compression[4]: Snappy
+2021/03/14-00:14:11.833116 7f4512f02a80 Options.compression[5]: Snappy
+2021/03/14-00:14:11.833116 7f4512f02a80 Options.compression[6]: Snappy
+2021/03/14-00:14:11.833117 7f4512f02a80 Options.bottommost_compression: Disabled
+2021/03/14-00:14:11.833118 7f4512f02a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:14:11.833118 7f4512f02a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:14:11.833119 7f4512f02a80 Options.num_levels: 7
+2021/03/14-00:14:11.833119 7f4512f02a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:14:11.833120 7f4512f02a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:14:11.833121 7f4512f02a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:14:11.833121 7f4512f02a80 Options.compression_opts.level: -1
+2021/03/14-00:14:11.833122 7f4512f02a80 Options.compression_opts.strategy: 0
+2021/03/14-00:14:11.833122 7f4512f02a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:14:11.833123 7f4512f02a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:14:11.833124 7f4512f02a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:14:11.833124 7f4512f02a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:14:11.833125 7f4512f02a80 Options.target_file_size_base: 67108864
+2021/03/14-00:14:11.833125 7f4512f02a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:14:11.833126 7f4512f02a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:14:11.833127 7f4512f02a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:14:11.833127 7f4512f02a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:14:11.833129 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:14:11.833136 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:14:11.833137 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:14:11.833137 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:14:11.833138 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:14:11.833138 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:14:11.833139 7f4512f02a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:14:11.833140 7f4512f02a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:14:11.833140 7f4512f02a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:14:11.833141 7f4512f02a80 Options.arena_block_size: 16777216
+2021/03/14-00:14:11.833141 7f4512f02a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:14:11.833142 7f4512f02a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:14:11.833143 7f4512f02a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:14:11.833143 7f4512f02a80 Options.disable_auto_compactions: 0
+2021/03/14-00:14:11.833145 7f4512f02a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:14:11.833145 7f4512f02a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:14:11.833146 7f4512f02a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:14:11.833147 7f4512f02a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:14:11.833147 7f4512f02a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:14:11.833148 7f4512f02a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:14:11.833148 7f4512f02a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:14:11.833149 7f4512f02a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:14:11.833150 7f4512f02a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:14:11.833150 7f4512f02a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:14:11.833151 7f4512f02a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:14:11.833152 7f4512f02a80 Options.table_properties_collectors:
+2021/03/14-00:14:11.833152 7f4512f02a80 Options.inplace_update_support: 0
+2021/03/14-00:14:11.833153 7f4512f02a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:14:11.833153 7f4512f02a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:14:11.833154 7f4512f02a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:14:11.833155 7f4512f02a80 Options.bloom_locality: 0
+2021/03/14-00:14:11.833155 7f4512f02a80 Options.max_successive_merges: 0
+2021/03/14-00:14:11.833156 7f4512f02a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:14:11.833156 7f4512f02a80 Options.paranoid_file_checks: 0
+2021/03/14-00:14:11.833157 7f4512f02a80 Options.force_consistency_checks: 0
+2021/03/14-00:14:11.833157 7f4512f02a80 Options.report_bg_io_stats: 0
+2021/03/14-00:14:11.833587 7f4512f02a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:14:11.833590 7f4512f02a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:14:11.833673 7f4512f02a80 EVENT_LOG_v1 {"time_micros": 1615677251833663, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:14:11.833678 7f4512f02a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:14:12.505720 7f4512f02a80 EVENT_LOG_v1 {"time_micros": 1615677252505717, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677746259330 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677746259330
new file mode 100644
index 0000000..804ad18
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677746259330
@@ -0,0 +1,186 @@
+2021/03/14-00:22:25.419565 7f7bf02d4a80 RocksDB version: 5.11.3
+2021/03/14-00:22:25.419654 7f7bf02d4a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:22:25.419656 7f7bf02d4a80 Compile date Mar 13 2021
+2021/03/14-00:22:25.419662 7f7bf02d4a80 DB SUMMARY
+2021/03/14-00:22:25.419756 7f7bf02d4a80 CURRENT file: CURRENT
+2021/03/14-00:22:25.419757 7f7bf02d4a80 IDENTITY file: IDENTITY
+2021/03/14-00:22:25.419766 7f7bf02d4a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:22:25.419767 7f7bf02d4a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:22:25.419768 7f7bf02d4a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:22:25.419772 7f7bf02d4a80 Options.error_if_exists: 0
+2021/03/14-00:22:25.419773 7f7bf02d4a80 Options.create_if_missing: 1
+2021/03/14-00:22:25.419774 7f7bf02d4a80 Options.paranoid_checks: 1
+2021/03/14-00:22:25.419775 7f7bf02d4a80 Options.env: 0x7f7bf0c8e080
+2021/03/14-00:22:25.419775 7f7bf02d4a80 Options.info_log: 0x2762ca0
+2021/03/14-00:22:25.419776 7f7bf02d4a80 Options.max_file_opening_threads: 16
+2021/03/14-00:22:25.419777 7f7bf02d4a80 Options.statistics: (nil)
+2021/03/14-00:22:25.419778 7f7bf02d4a80 Options.use_fsync: 0
+2021/03/14-00:22:25.419778 7f7bf02d4a80 Options.max_log_file_size: 0
+2021/03/14-00:22:25.419779 7f7bf02d4a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:22:25.419780 7f7bf02d4a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:22:25.419780 7f7bf02d4a80 Options.keep_log_file_num: 1000
+2021/03/14-00:22:25.419781 7f7bf02d4a80 Options.recycle_log_file_num: 0
+2021/03/14-00:22:25.419782 7f7bf02d4a80 Options.allow_fallocate: 1
+2021/03/14-00:22:25.419783 7f7bf02d4a80 Options.allow_mmap_reads: 0
+2021/03/14-00:22:25.419783 7f7bf02d4a80 Options.allow_mmap_writes: 0
+2021/03/14-00:22:25.419784 7f7bf02d4a80 Options.use_direct_reads: 0
+2021/03/14-00:22:25.419785 7f7bf02d4a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:22:25.419785 7f7bf02d4a80 Options.create_missing_column_families: 0
+2021/03/14-00:22:25.419786 7f7bf02d4a80 Options.db_log_dir:
+2021/03/14-00:22:25.419787 7f7bf02d4a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:22:25.419787 7f7bf02d4a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:22:25.419788 7f7bf02d4a80 Options.max_subcompactions: 1
+2021/03/14-00:22:25.419789 7f7bf02d4a80 Options.max_background_flushes: -1
+2021/03/14-00:22:25.419789 7f7bf02d4a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:22:25.419790 7f7bf02d4a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:22:25.419791 7f7bf02d4a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:22:25.419792 7f7bf02d4a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:22:25.419792 7f7bf02d4a80 Options.advise_random_on_open: 1
+2021/03/14-00:22:25.419793 7f7bf02d4a80 Options.db_write_buffer_size: 0
+2021/03/14-00:22:25.419794 7f7bf02d4a80 Options.write_buffer_manager: 0x274ab90
+2021/03/14-00:22:25.419794 7f7bf02d4a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:22:25.419795 7f7bf02d4a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:22:25.419796 7f7bf02d4a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:22:25.419796 7f7bf02d4a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:22:25.419797 7f7bf02d4a80 Options.rate_limiter: (nil)
+2021/03/14-00:22:25.419799 7f7bf02d4a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:22:25.419809 7f7bf02d4a80 Options.wal_recovery_mode: 2
+2021/03/14-00:22:25.419810 7f7bf02d4a80 Options.enable_thread_tracking: 0
+2021/03/14-00:22:25.419810 7f7bf02d4a80 Options.enable_pipelined_write: 0
+2021/03/14-00:22:25.419811 7f7bf02d4a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:22:25.419812 7f7bf02d4a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:22:25.419813 7f7bf02d4a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:22:25.419813 7f7bf02d4a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:22:25.419814 7f7bf02d4a80 Options.row_cache: None
+2021/03/14-00:22:25.419815 7f7bf02d4a80 Options.wal_filter: None
+2021/03/14-00:22:25.419815 7f7bf02d4a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:22:25.419816 7f7bf02d4a80 Options.allow_ingest_behind: 0
+2021/03/14-00:22:25.419817 7f7bf02d4a80 Options.preserve_deletes: 0
+2021/03/14-00:22:25.419817 7f7bf02d4a80 Options.two_write_queues: 0
+2021/03/14-00:22:25.419818 7f7bf02d4a80 Options.manual_wal_flush: 0
+2021/03/14-00:22:25.419820 7f7bf02d4a80 Options.max_background_jobs: 16
+2021/03/14-00:22:25.419820 7f7bf02d4a80 Options.max_background_compactions: -1
+2021/03/14-00:22:25.419821 7f7bf02d4a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:22:25.419822 7f7bf02d4a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:22:25.419822 7f7bf02d4a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:22:25.419823 7f7bf02d4a80 Options.max_total_wal_size: 0
+2021/03/14-00:22:25.419824 7f7bf02d4a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:22:25.419825 7f7bf02d4a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:22:25.419825 7f7bf02d4a80 Options.max_open_files: -1
+2021/03/14-00:22:25.419826 7f7bf02d4a80 Options.bytes_per_sync: 0
+2021/03/14-00:22:25.419827 7f7bf02d4a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:22:25.419827 7f7bf02d4a80 Options.compaction_readahead_size: 0
+2021/03/14-00:22:25.419828 7f7bf02d4a80 Compression algorithms supported:
+2021/03/14-00:22:25.419829 7f7bf02d4a80 Snappy supported: 1
+2021/03/14-00:22:25.419830 7f7bf02d4a80 Zlib supported: 1
+2021/03/14-00:22:25.419830 7f7bf02d4a80 Bzip supported: 1
+2021/03/14-00:22:25.419831 7f7bf02d4a80 LZ4 supported: 1
+2021/03/14-00:22:25.419832 7f7bf02d4a80 ZSTDNotFinal supported: 1
+2021/03/14-00:22:25.419838 7f7bf02d4a80 ZSTD supported: 1
+2021/03/14-00:22:25.419842 7f7bf02d4a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:22:25.419843 7f7bf02d4a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:22:25.419993 7f7bf02d4a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:22:25.420068 7f7bf02d4a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:22:25.420071 7f7bf02d4a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:22:25.420072 7f7bf02d4a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:22:25.420073 7f7bf02d4a80 Options.compaction_filter: None
+2021/03/14-00:22:25.420074 7f7bf02d4a80 Options.compaction_filter_factory: None
+2021/03/14-00:22:25.420074 7f7bf02d4a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:22:25.420076 7f7bf02d4a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:22:25.420096 7f7bf02d4a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x275a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x273fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:22:25.420097 7f7bf02d4a80 Options.write_buffer_size: 134217728
+2021/03/14-00:22:25.420097 7f7bf02d4a80 Options.max_write_buffer_number: 6
+2021/03/14-00:22:25.420098 7f7bf02d4a80 Options.compression[0]: NoCompression
+2021/03/14-00:22:25.420099 7f7bf02d4a80 Options.compression[1]: NoCompression
+2021/03/14-00:22:25.420100 7f7bf02d4a80 Options.compression[2]: Snappy
+2021/03/14-00:22:25.420101 7f7bf02d4a80 Options.compression[3]: Snappy
+2021/03/14-00:22:25.420102 7f7bf02d4a80 Options.compression[4]: Snappy
+2021/03/14-00:22:25.420102 7f7bf02d4a80 Options.compression[5]: Snappy
+2021/03/14-00:22:25.420103 7f7bf02d4a80 Options.compression[6]: Snappy
+2021/03/14-00:22:25.420104 7f7bf02d4a80 Options.bottommost_compression: Disabled
+2021/03/14-00:22:25.420105 7f7bf02d4a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:22:25.420106 7f7bf02d4a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:22:25.420106 7f7bf02d4a80 Options.num_levels: 7
+2021/03/14-00:22:25.420107 7f7bf02d4a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:22:25.420108 7f7bf02d4a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:22:25.420108 7f7bf02d4a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:22:25.420109 7f7bf02d4a80 Options.compression_opts.level: -1
+2021/03/14-00:22:25.420110 7f7bf02d4a80 Options.compression_opts.strategy: 0
+2021/03/14-00:22:25.420111 7f7bf02d4a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:22:25.420111 7f7bf02d4a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:22:25.420112 7f7bf02d4a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:22:25.420113 7f7bf02d4a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:22:25.420113 7f7bf02d4a80 Options.target_file_size_base: 67108864
+2021/03/14-00:22:25.420114 7f7bf02d4a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:22:25.420115 7f7bf02d4a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:22:25.420116 7f7bf02d4a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:22:25.420116 7f7bf02d4a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:22:25.420118 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:22:25.420128 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:22:25.420129 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:22:25.420130 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:22:25.420131 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:22:25.420131 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:22:25.420132 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:22:25.420133 7f7bf02d4a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:22:25.420133 7f7bf02d4a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:22:25.420134 7f7bf02d4a80 Options.arena_block_size: 16777216
+2021/03/14-00:22:25.420135 7f7bf02d4a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:22:25.420136 7f7bf02d4a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:22:25.420136 7f7bf02d4a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:22:25.420137 7f7bf02d4a80 Options.disable_auto_compactions: 0
+2021/03/14-00:22:25.420139 7f7bf02d4a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:22:25.420140 7f7bf02d4a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:22:25.420141 7f7bf02d4a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:22:25.420142 7f7bf02d4a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:22:25.420142 7f7bf02d4a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:22:25.420143 7f7bf02d4a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:22:25.420144 7f7bf02d4a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:22:25.420145 7f7bf02d4a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:22:25.420146 7f7bf02d4a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:22:25.420146 7f7bf02d4a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:22:25.420147 7f7bf02d4a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:22:25.420148 7f7bf02d4a80 Options.table_properties_collectors:
+2021/03/14-00:22:25.420149 7f7bf02d4a80 Options.inplace_update_support: 0
+2021/03/14-00:22:25.420149 7f7bf02d4a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:22:25.420150 7f7bf02d4a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:22:25.420151 7f7bf02d4a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:22:25.420152 7f7bf02d4a80 Options.bloom_locality: 0
+2021/03/14-00:22:25.420152 7f7bf02d4a80 Options.max_successive_merges: 0
+2021/03/14-00:22:25.420153 7f7bf02d4a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:22:25.420154 7f7bf02d4a80 Options.paranoid_file_checks: 0
+2021/03/14-00:22:25.420154 7f7bf02d4a80 Options.force_consistency_checks: 0
+2021/03/14-00:22:25.420155 7f7bf02d4a80 Options.report_bg_io_stats: 0
+2021/03/14-00:22:25.420675 7f7bf02d4a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:22:25.420679 7f7bf02d4a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:22:25.420796 7f7bf02d4a80 EVENT_LOG_v1 {"time_micros": 1615677745420781, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:22:25.420804 7f7bf02d4a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:22:26.247052 7f7bf02d4a80 EVENT_LOG_v1 {"time_micros": 1615677746247048, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677747105087 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677747105087
new file mode 100644
index 0000000..871a07a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677747105087
@@ -0,0 +1,186 @@
+2021/03/14-00:22:26.259670 7f7bf02d4a80 RocksDB version: 5.11.3
+2021/03/14-00:22:26.259729 7f7bf02d4a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:22:26.259730 7f7bf02d4a80 Compile date Mar 13 2021
+2021/03/14-00:22:26.259735 7f7bf02d4a80 DB SUMMARY
+2021/03/14-00:22:26.259812 7f7bf02d4a80 CURRENT file: CURRENT
+2021/03/14-00:22:26.259813 7f7bf02d4a80 IDENTITY file: IDENTITY
+2021/03/14-00:22:26.259820 7f7bf02d4a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:22:26.259822 7f7bf02d4a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:22:26.259822 7f7bf02d4a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:22:26.259825 7f7bf02d4a80 Options.error_if_exists: 0
+2021/03/14-00:22:26.259826 7f7bf02d4a80 Options.create_if_missing: 1
+2021/03/14-00:22:26.259827 7f7bf02d4a80 Options.paranoid_checks: 1
+2021/03/14-00:22:26.259827 7f7bf02d4a80 Options.env: 0x7f7bf0c8e080
+2021/03/14-00:22:26.259828 7f7bf02d4a80 Options.info_log: 0x2762ca0
+2021/03/14-00:22:26.259829 7f7bf02d4a80 Options.max_file_opening_threads: 16
+2021/03/14-00:22:26.259829 7f7bf02d4a80 Options.statistics: (nil)
+2021/03/14-00:22:26.259830 7f7bf02d4a80 Options.use_fsync: 0
+2021/03/14-00:22:26.259831 7f7bf02d4a80 Options.max_log_file_size: 0
+2021/03/14-00:22:26.259831 7f7bf02d4a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:22:26.259832 7f7bf02d4a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:22:26.259832 7f7bf02d4a80 Options.keep_log_file_num: 1000
+2021/03/14-00:22:26.259833 7f7bf02d4a80 Options.recycle_log_file_num: 0
+2021/03/14-00:22:26.259834 7f7bf02d4a80 Options.allow_fallocate: 1
+2021/03/14-00:22:26.259834 7f7bf02d4a80 Options.allow_mmap_reads: 0
+2021/03/14-00:22:26.259835 7f7bf02d4a80 Options.allow_mmap_writes: 0
+2021/03/14-00:22:26.259835 7f7bf02d4a80 Options.use_direct_reads: 0
+2021/03/14-00:22:26.259836 7f7bf02d4a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:22:26.259836 7f7bf02d4a80 Options.create_missing_column_families: 0
+2021/03/14-00:22:26.259837 7f7bf02d4a80 Options.db_log_dir:
+2021/03/14-00:22:26.259838 7f7bf02d4a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:22:26.259838 7f7bf02d4a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:22:26.259839 7f7bf02d4a80 Options.max_subcompactions: 1
+2021/03/14-00:22:26.259839 7f7bf02d4a80 Options.max_background_flushes: -1
+2021/03/14-00:22:26.259840 7f7bf02d4a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:22:26.259841 7f7bf02d4a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:22:26.259841 7f7bf02d4a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:22:26.259842 7f7bf02d4a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:22:26.259842 7f7bf02d4a80 Options.advise_random_on_open: 1
+2021/03/14-00:22:26.259843 7f7bf02d4a80 Options.db_write_buffer_size: 0
+2021/03/14-00:22:26.259844 7f7bf02d4a80 Options.write_buffer_manager: 0x274ab90
+2021/03/14-00:22:26.259844 7f7bf02d4a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:22:26.259845 7f7bf02d4a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:22:26.259845 7f7bf02d4a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:22:26.259846 7f7bf02d4a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:22:26.259846 7f7bf02d4a80 Options.rate_limiter: (nil)
+2021/03/14-00:22:26.259848 7f7bf02d4a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:22:26.259855 7f7bf02d4a80 Options.wal_recovery_mode: 2
+2021/03/14-00:22:26.259856 7f7bf02d4a80 Options.enable_thread_tracking: 0
+2021/03/14-00:22:26.259856 7f7bf02d4a80 Options.enable_pipelined_write: 0
+2021/03/14-00:22:26.259857 7f7bf02d4a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:22:26.259857 7f7bf02d4a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:22:26.259858 7f7bf02d4a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:22:26.259859 7f7bf02d4a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:22:26.259859 7f7bf02d4a80 Options.row_cache: None
+2021/03/14-00:22:26.259860 7f7bf02d4a80 Options.wal_filter: None
+2021/03/14-00:22:26.259860 7f7bf02d4a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:22:26.259861 7f7bf02d4a80 Options.allow_ingest_behind: 0
+2021/03/14-00:22:26.259862 7f7bf02d4a80 Options.preserve_deletes: 0
+2021/03/14-00:22:26.259862 7f7bf02d4a80 Options.two_write_queues: 0
+2021/03/14-00:22:26.259863 7f7bf02d4a80 Options.manual_wal_flush: 0
+2021/03/14-00:22:26.259864 7f7bf02d4a80 Options.max_background_jobs: 16
+2021/03/14-00:22:26.259864 7f7bf02d4a80 Options.max_background_compactions: -1
+2021/03/14-00:22:26.259865 7f7bf02d4a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:22:26.259865 7f7bf02d4a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:22:26.259866 7f7bf02d4a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:22:26.259867 7f7bf02d4a80 Options.max_total_wal_size: 0
+2021/03/14-00:22:26.259867 7f7bf02d4a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:22:26.259868 7f7bf02d4a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:22:26.259868 7f7bf02d4a80 Options.max_open_files: -1
+2021/03/14-00:22:26.259869 7f7bf02d4a80 Options.bytes_per_sync: 0
+2021/03/14-00:22:26.259870 7f7bf02d4a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:22:26.259870 7f7bf02d4a80 Options.compaction_readahead_size: 0
+2021/03/14-00:22:26.259871 7f7bf02d4a80 Compression algorithms supported:
+2021/03/14-00:22:26.259871 7f7bf02d4a80 Snappy supported: 1
+2021/03/14-00:22:26.259872 7f7bf02d4a80 Zlib supported: 1
+2021/03/14-00:22:26.259873 7f7bf02d4a80 Bzip supported: 1
+2021/03/14-00:22:26.259873 7f7bf02d4a80 LZ4 supported: 1
+2021/03/14-00:22:26.259874 7f7bf02d4a80 ZSTDNotFinal supported: 1
+2021/03/14-00:22:26.259878 7f7bf02d4a80 ZSTD supported: 1
+2021/03/14-00:22:26.259881 7f7bf02d4a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:22:26.259882 7f7bf02d4a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:22:26.259971 7f7bf02d4a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:22:26.260027 7f7bf02d4a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:22:26.260029 7f7bf02d4a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:22:26.260030 7f7bf02d4a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:22:26.260030 7f7bf02d4a80 Options.compaction_filter: None
+2021/03/14-00:22:26.260031 7f7bf02d4a80 Options.compaction_filter_factory: None
+2021/03/14-00:22:26.260032 7f7bf02d4a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:22:26.260033 7f7bf02d4a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:22:26.260048 7f7bf02d4a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x275a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x273fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:22:26.260049 7f7bf02d4a80 Options.write_buffer_size: 134217728
+2021/03/14-00:22:26.260050 7f7bf02d4a80 Options.max_write_buffer_number: 6
+2021/03/14-00:22:26.260051 7f7bf02d4a80 Options.compression[0]: NoCompression
+2021/03/14-00:22:26.260051 7f7bf02d4a80 Options.compression[1]: NoCompression
+2021/03/14-00:22:26.260052 7f7bf02d4a80 Options.compression[2]: Snappy
+2021/03/14-00:22:26.260053 7f7bf02d4a80 Options.compression[3]: Snappy
+2021/03/14-00:22:26.260053 7f7bf02d4a80 Options.compression[4]: Snappy
+2021/03/14-00:22:26.260054 7f7bf02d4a80 Options.compression[5]: Snappy
+2021/03/14-00:22:26.260054 7f7bf02d4a80 Options.compression[6]: Snappy
+2021/03/14-00:22:26.260055 7f7bf02d4a80 Options.bottommost_compression: Disabled
+2021/03/14-00:22:26.260056 7f7bf02d4a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:22:26.260056 7f7bf02d4a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:22:26.260057 7f7bf02d4a80 Options.num_levels: 7
+2021/03/14-00:22:26.260058 7f7bf02d4a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:22:26.260058 7f7bf02d4a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:22:26.260059 7f7bf02d4a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:22:26.260059 7f7bf02d4a80 Options.compression_opts.level: -1
+2021/03/14-00:22:26.260060 7f7bf02d4a80 Options.compression_opts.strategy: 0
+2021/03/14-00:22:26.260061 7f7bf02d4a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:22:26.260061 7f7bf02d4a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:22:26.260062 7f7bf02d4a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:22:26.260062 7f7bf02d4a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:22:26.260063 7f7bf02d4a80 Options.target_file_size_base: 67108864
+2021/03/14-00:22:26.260064 7f7bf02d4a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:22:26.260064 7f7bf02d4a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:22:26.260065 7f7bf02d4a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:22:26.260065 7f7bf02d4a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:22:26.260067 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:22:26.260074 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:22:26.260075 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:22:26.260076 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:22:26.260076 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:22:26.260077 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:22:26.260078 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:22:26.260078 7f7bf02d4a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:22:26.260079 7f7bf02d4a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:22:26.260079 7f7bf02d4a80 Options.arena_block_size: 16777216
+2021/03/14-00:22:26.260080 7f7bf02d4a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:22:26.260081 7f7bf02d4a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:22:26.260081 7f7bf02d4a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:22:26.260082 7f7bf02d4a80 Options.disable_auto_compactions: 0
+2021/03/14-00:22:26.260083 7f7bf02d4a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:22:26.260084 7f7bf02d4a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:22:26.260085 7f7bf02d4a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:22:26.260085 7f7bf02d4a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:22:26.260086 7f7bf02d4a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:22:26.260087 7f7bf02d4a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:22:26.260087 7f7bf02d4a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:22:26.260088 7f7bf02d4a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:22:26.260089 7f7bf02d4a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:22:26.260090 7f7bf02d4a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:22:26.260090 7f7bf02d4a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:22:26.260091 7f7bf02d4a80 Options.table_properties_collectors:
+2021/03/14-00:22:26.260092 7f7bf02d4a80 Options.inplace_update_support: 0
+2021/03/14-00:22:26.260092 7f7bf02d4a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:22:26.260093 7f7bf02d4a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:22:26.260094 7f7bf02d4a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:22:26.260094 7f7bf02d4a80 Options.bloom_locality: 0
+2021/03/14-00:22:26.260095 7f7bf02d4a80 Options.max_successive_merges: 0
+2021/03/14-00:22:26.260095 7f7bf02d4a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:22:26.260096 7f7bf02d4a80 Options.paranoid_file_checks: 0
+2021/03/14-00:22:26.260097 7f7bf02d4a80 Options.force_consistency_checks: 0
+2021/03/14-00:22:26.260097 7f7bf02d4a80 Options.report_bg_io_stats: 0
+2021/03/14-00:22:26.260506 7f7bf02d4a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:22:26.260509 7f7bf02d4a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:22:26.260599 7f7bf02d4a80 EVENT_LOG_v1 {"time_micros": 1615677746260588, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:22:26.260604 7f7bf02d4a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:22:27.089256 7f7bf02d4a80 EVENT_LOG_v1 {"time_micros": 1615677747089252, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677747968333 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677747968333
new file mode 100644
index 0000000..f730b6b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677747968333
@@ -0,0 +1,186 @@
+2021/03/14-00:22:27.105666 7f7bf02d4a80 RocksDB version: 5.11.3
+2021/03/14-00:22:27.105815 7f7bf02d4a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:22:27.105817 7f7bf02d4a80 Compile date Mar 13 2021
+2021/03/14-00:22:27.105823 7f7bf02d4a80 DB SUMMARY
+2021/03/14-00:22:27.105920 7f7bf02d4a80 CURRENT file: CURRENT
+2021/03/14-00:22:27.105922 7f7bf02d4a80 IDENTITY file: IDENTITY
+2021/03/14-00:22:27.105930 7f7bf02d4a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:22:27.105932 7f7bf02d4a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:22:27.105933 7f7bf02d4a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:22:27.105936 7f7bf02d4a80 Options.error_if_exists: 0
+2021/03/14-00:22:27.105937 7f7bf02d4a80 Options.create_if_missing: 1
+2021/03/14-00:22:27.105938 7f7bf02d4a80 Options.paranoid_checks: 1
+2021/03/14-00:22:27.105938 7f7bf02d4a80 Options.env: 0x7f7bf0c8e080
+2021/03/14-00:22:27.105939 7f7bf02d4a80 Options.info_log: 0x2762ca0
+2021/03/14-00:22:27.105940 7f7bf02d4a80 Options.max_file_opening_threads: 16
+2021/03/14-00:22:27.105941 7f7bf02d4a80 Options.statistics: (nil)
+2021/03/14-00:22:27.105942 7f7bf02d4a80 Options.use_fsync: 0
+2021/03/14-00:22:27.105942 7f7bf02d4a80 Options.max_log_file_size: 0
+2021/03/14-00:22:27.105943 7f7bf02d4a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:22:27.105944 7f7bf02d4a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:22:27.105944 7f7bf02d4a80 Options.keep_log_file_num: 1000
+2021/03/14-00:22:27.105945 7f7bf02d4a80 Options.recycle_log_file_num: 0
+2021/03/14-00:22:27.105946 7f7bf02d4a80 Options.allow_fallocate: 1
+2021/03/14-00:22:27.105946 7f7bf02d4a80 Options.allow_mmap_reads: 0
+2021/03/14-00:22:27.105947 7f7bf02d4a80 Options.allow_mmap_writes: 0
+2021/03/14-00:22:27.105948 7f7bf02d4a80 Options.use_direct_reads: 0
+2021/03/14-00:22:27.105948 7f7bf02d4a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:22:27.105949 7f7bf02d4a80 Options.create_missing_column_families: 0
+2021/03/14-00:22:27.105950 7f7bf02d4a80 Options.db_log_dir:
+2021/03/14-00:22:27.105950 7f7bf02d4a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:22:27.105951 7f7bf02d4a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:22:27.105952 7f7bf02d4a80 Options.max_subcompactions: 1
+2021/03/14-00:22:27.105952 7f7bf02d4a80 Options.max_background_flushes: -1
+2021/03/14-00:22:27.105953 7f7bf02d4a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:22:27.105954 7f7bf02d4a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:22:27.105954 7f7bf02d4a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:22:27.105955 7f7bf02d4a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:22:27.105956 7f7bf02d4a80 Options.advise_random_on_open: 1
+2021/03/14-00:22:27.105956 7f7bf02d4a80 Options.db_write_buffer_size: 0
+2021/03/14-00:22:27.105957 7f7bf02d4a80 Options.write_buffer_manager: 0x274ab90
+2021/03/14-00:22:27.105958 7f7bf02d4a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:22:27.105958 7f7bf02d4a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:22:27.105959 7f7bf02d4a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:22:27.105960 7f7bf02d4a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:22:27.105960 7f7bf02d4a80 Options.rate_limiter: (nil)
+2021/03/14-00:22:27.105962 7f7bf02d4a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:22:27.105972 7f7bf02d4a80 Options.wal_recovery_mode: 2
+2021/03/14-00:22:27.105973 7f7bf02d4a80 Options.enable_thread_tracking: 0
+2021/03/14-00:22:27.105973 7f7bf02d4a80 Options.enable_pipelined_write: 0
+2021/03/14-00:22:27.105974 7f7bf02d4a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:22:27.105974 7f7bf02d4a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:22:27.105975 7f7bf02d4a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:22:27.105976 7f7bf02d4a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:22:27.105976 7f7bf02d4a80 Options.row_cache: None
+2021/03/14-00:22:27.105977 7f7bf02d4a80 Options.wal_filter: None
+2021/03/14-00:22:27.105978 7f7bf02d4a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:22:27.105978 7f7bf02d4a80 Options.allow_ingest_behind: 0
+2021/03/14-00:22:27.105979 7f7bf02d4a80 Options.preserve_deletes: 0
+2021/03/14-00:22:27.105980 7f7bf02d4a80 Options.two_write_queues: 0
+2021/03/14-00:22:27.105980 7f7bf02d4a80 Options.manual_wal_flush: 0
+2021/03/14-00:22:27.105982 7f7bf02d4a80 Options.max_background_jobs: 16
+2021/03/14-00:22:27.105982 7f7bf02d4a80 Options.max_background_compactions: -1
+2021/03/14-00:22:27.105983 7f7bf02d4a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:22:27.105984 7f7bf02d4a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:22:27.105984 7f7bf02d4a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:22:27.105985 7f7bf02d4a80 Options.max_total_wal_size: 0
+2021/03/14-00:22:27.105986 7f7bf02d4a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:22:27.105986 7f7bf02d4a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:22:27.105987 7f7bf02d4a80 Options.max_open_files: -1
+2021/03/14-00:22:27.105988 7f7bf02d4a80 Options.bytes_per_sync: 0
+2021/03/14-00:22:27.105988 7f7bf02d4a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:22:27.105989 7f7bf02d4a80 Options.compaction_readahead_size: 0
+2021/03/14-00:22:27.105990 7f7bf02d4a80 Compression algorithms supported:
+2021/03/14-00:22:27.105990 7f7bf02d4a80 Snappy supported: 1
+2021/03/14-00:22:27.105991 7f7bf02d4a80 Zlib supported: 1
+2021/03/14-00:22:27.105992 7f7bf02d4a80 Bzip supported: 1
+2021/03/14-00:22:27.105992 7f7bf02d4a80 LZ4 supported: 1
+2021/03/14-00:22:27.105993 7f7bf02d4a80 ZSTDNotFinal supported: 1
+2021/03/14-00:22:27.105998 7f7bf02d4a80 ZSTD supported: 1
+2021/03/14-00:22:27.106002 7f7bf02d4a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:22:27.106004 7f7bf02d4a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:22:27.106118 7f7bf02d4a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:22:27.106184 7f7bf02d4a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:22:27.106186 7f7bf02d4a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:22:27.106187 7f7bf02d4a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:22:27.106188 7f7bf02d4a80 Options.compaction_filter: None
+2021/03/14-00:22:27.106188 7f7bf02d4a80 Options.compaction_filter_factory: None
+2021/03/14-00:22:27.106189 7f7bf02d4a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:22:27.106190 7f7bf02d4a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:22:27.106210 7f7bf02d4a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x275a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x273fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:22:27.106211 7f7bf02d4a80 Options.write_buffer_size: 134217728
+2021/03/14-00:22:27.106212 7f7bf02d4a80 Options.max_write_buffer_number: 6
+2021/03/14-00:22:27.106213 7f7bf02d4a80 Options.compression[0]: NoCompression
+2021/03/14-00:22:27.106214 7f7bf02d4a80 Options.compression[1]: NoCompression
+2021/03/14-00:22:27.106214 7f7bf02d4a80 Options.compression[2]: Snappy
+2021/03/14-00:22:27.106215 7f7bf02d4a80 Options.compression[3]: Snappy
+2021/03/14-00:22:27.106216 7f7bf02d4a80 Options.compression[4]: Snappy
+2021/03/14-00:22:27.106216 7f7bf02d4a80 Options.compression[5]: Snappy
+2021/03/14-00:22:27.106217 7f7bf02d4a80 Options.compression[6]: Snappy
+2021/03/14-00:22:27.106218 7f7bf02d4a80 Options.bottommost_compression: Disabled
+2021/03/14-00:22:27.106219 7f7bf02d4a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:22:27.106219 7f7bf02d4a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:22:27.106220 7f7bf02d4a80 Options.num_levels: 7
+2021/03/14-00:22:27.106220 7f7bf02d4a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:22:27.106221 7f7bf02d4a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:22:27.106222 7f7bf02d4a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:22:27.106223 7f7bf02d4a80 Options.compression_opts.level: -1
+2021/03/14-00:22:27.106223 7f7bf02d4a80 Options.compression_opts.strategy: 0
+2021/03/14-00:22:27.106224 7f7bf02d4a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:22:27.106225 7f7bf02d4a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:22:27.106225 7f7bf02d4a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:22:27.106226 7f7bf02d4a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:22:27.106227 7f7bf02d4a80 Options.target_file_size_base: 67108864
+2021/03/14-00:22:27.106227 7f7bf02d4a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:22:27.106228 7f7bf02d4a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:22:27.106229 7f7bf02d4a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:22:27.106229 7f7bf02d4a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:22:27.106231 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:22:27.106249 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:22:27.106250 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:22:27.106251 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:22:27.106252 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:22:27.106252 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:22:27.106253 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:22:27.106254 7f7bf02d4a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:22:27.106254 7f7bf02d4a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:22:27.106255 7f7bf02d4a80 Options.arena_block_size: 16777216
+2021/03/14-00:22:27.106256 7f7bf02d4a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:22:27.106256 7f7bf02d4a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:22:27.106257 7f7bf02d4a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:22:27.106258 7f7bf02d4a80 Options.disable_auto_compactions: 0
+2021/03/14-00:22:27.106260 7f7bf02d4a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:22:27.106261 7f7bf02d4a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:22:27.106261 7f7bf02d4a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:22:27.106262 7f7bf02d4a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:22:27.106263 7f7bf02d4a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:22:27.106263 7f7bf02d4a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:22:27.106264 7f7bf02d4a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:22:27.106265 7f7bf02d4a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:22:27.106266 7f7bf02d4a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:22:27.106266 7f7bf02d4a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:22:27.106267 7f7bf02d4a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:22:27.106268 7f7bf02d4a80 Options.table_properties_collectors:
+2021/03/14-00:22:27.106268 7f7bf02d4a80 Options.inplace_update_support: 0
+2021/03/14-00:22:27.106269 7f7bf02d4a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:22:27.106270 7f7bf02d4a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:22:27.106271 7f7bf02d4a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:22:27.106271 7f7bf02d4a80 Options.bloom_locality: 0
+2021/03/14-00:22:27.106272 7f7bf02d4a80 Options.max_successive_merges: 0
+2021/03/14-00:22:27.106273 7f7bf02d4a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:22:27.106273 7f7bf02d4a80 Options.paranoid_file_checks: 0
+2021/03/14-00:22:27.106274 7f7bf02d4a80 Options.force_consistency_checks: 0
+2021/03/14-00:22:27.106275 7f7bf02d4a80 Options.report_bg_io_stats: 0
+2021/03/14-00:22:27.106802 7f7bf02d4a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:22:27.106805 7f7bf02d4a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:22:27.106913 7f7bf02d4a80 EVENT_LOG_v1 {"time_micros": 1615677747106900, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:22:27.106919 7f7bf02d4a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:22:27.954692 7f7bf02d4a80 EVENT_LOG_v1 {"time_micros": 1615677747954689, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677779973545 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677779973545
new file mode 100644
index 0000000..086a393
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677779973545
@@ -0,0 +1,186 @@
+2021/03/14-00:22:27.968708 7f7bf02d4a80 RocksDB version: 5.11.3
+2021/03/14-00:22:27.968772 7f7bf02d4a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:22:27.968774 7f7bf02d4a80 Compile date Mar 13 2021
+2021/03/14-00:22:27.968779 7f7bf02d4a80 DB SUMMARY
+2021/03/14-00:22:27.968860 7f7bf02d4a80 CURRENT file: CURRENT
+2021/03/14-00:22:27.968861 7f7bf02d4a80 IDENTITY file: IDENTITY
+2021/03/14-00:22:27.968869 7f7bf02d4a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:22:27.968870 7f7bf02d4a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:22:27.968871 7f7bf02d4a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:22:27.968874 7f7bf02d4a80 Options.error_if_exists: 0
+2021/03/14-00:22:27.968875 7f7bf02d4a80 Options.create_if_missing: 1
+2021/03/14-00:22:27.968875 7f7bf02d4a80 Options.paranoid_checks: 1
+2021/03/14-00:22:27.968876 7f7bf02d4a80 Options.env: 0x7f7bf0c8e080
+2021/03/14-00:22:27.968877 7f7bf02d4a80 Options.info_log: 0x2762ca0
+2021/03/14-00:22:27.968877 7f7bf02d4a80 Options.max_file_opening_threads: 16
+2021/03/14-00:22:27.968878 7f7bf02d4a80 Options.statistics: (nil)
+2021/03/14-00:22:27.968879 7f7bf02d4a80 Options.use_fsync: 0
+2021/03/14-00:22:27.968879 7f7bf02d4a80 Options.max_log_file_size: 0
+2021/03/14-00:22:27.968880 7f7bf02d4a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:22:27.968880 7f7bf02d4a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:22:27.968881 7f7bf02d4a80 Options.keep_log_file_num: 1000
+2021/03/14-00:22:27.968882 7f7bf02d4a80 Options.recycle_log_file_num: 0
+2021/03/14-00:22:27.968882 7f7bf02d4a80 Options.allow_fallocate: 1
+2021/03/14-00:22:27.968883 7f7bf02d4a80 Options.allow_mmap_reads: 0
+2021/03/14-00:22:27.968884 7f7bf02d4a80 Options.allow_mmap_writes: 0
+2021/03/14-00:22:27.968884 7f7bf02d4a80 Options.use_direct_reads: 0
+2021/03/14-00:22:27.968885 7f7bf02d4a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:22:27.968885 7f7bf02d4a80 Options.create_missing_column_families: 0
+2021/03/14-00:22:27.968886 7f7bf02d4a80 Options.db_log_dir:
+2021/03/14-00:22:27.968886 7f7bf02d4a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:22:27.968887 7f7bf02d4a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:22:27.968888 7f7bf02d4a80 Options.max_subcompactions: 1
+2021/03/14-00:22:27.968888 7f7bf02d4a80 Options.max_background_flushes: -1
+2021/03/14-00:22:27.968889 7f7bf02d4a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:22:27.968890 7f7bf02d4a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:22:27.968890 7f7bf02d4a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:22:27.968891 7f7bf02d4a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:22:27.968891 7f7bf02d4a80 Options.advise_random_on_open: 1
+2021/03/14-00:22:27.968892 7f7bf02d4a80 Options.db_write_buffer_size: 0
+2021/03/14-00:22:27.968892 7f7bf02d4a80 Options.write_buffer_manager: 0x274ab90
+2021/03/14-00:22:27.968893 7f7bf02d4a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:22:27.968894 7f7bf02d4a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:22:27.968894 7f7bf02d4a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:22:27.968895 7f7bf02d4a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:22:27.968895 7f7bf02d4a80 Options.rate_limiter: (nil)
+2021/03/14-00:22:27.968897 7f7bf02d4a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:22:27.968905 7f7bf02d4a80 Options.wal_recovery_mode: 2
+2021/03/14-00:22:27.968906 7f7bf02d4a80 Options.enable_thread_tracking: 0
+2021/03/14-00:22:27.968906 7f7bf02d4a80 Options.enable_pipelined_write: 0
+2021/03/14-00:22:27.968907 7f7bf02d4a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:22:27.968907 7f7bf02d4a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:22:27.968908 7f7bf02d4a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:22:27.968909 7f7bf02d4a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:22:27.968909 7f7bf02d4a80 Options.row_cache: None
+2021/03/14-00:22:27.968910 7f7bf02d4a80 Options.wal_filter: None
+2021/03/14-00:22:27.968910 7f7bf02d4a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:22:27.968911 7f7bf02d4a80 Options.allow_ingest_behind: 0
+2021/03/14-00:22:27.968911 7f7bf02d4a80 Options.preserve_deletes: 0
+2021/03/14-00:22:27.968912 7f7bf02d4a80 Options.two_write_queues: 0
+2021/03/14-00:22:27.968913 7f7bf02d4a80 Options.manual_wal_flush: 0
+2021/03/14-00:22:27.968914 7f7bf02d4a80 Options.max_background_jobs: 16
+2021/03/14-00:22:27.968915 7f7bf02d4a80 Options.max_background_compactions: -1
+2021/03/14-00:22:27.968915 7f7bf02d4a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:22:27.968916 7f7bf02d4a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:22:27.968916 7f7bf02d4a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:22:27.968917 7f7bf02d4a80 Options.max_total_wal_size: 0
+2021/03/14-00:22:27.968918 7f7bf02d4a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:22:27.968918 7f7bf02d4a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:22:27.968919 7f7bf02d4a80 Options.max_open_files: -1
+2021/03/14-00:22:27.968920 7f7bf02d4a80 Options.bytes_per_sync: 0
+2021/03/14-00:22:27.968920 7f7bf02d4a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:22:27.968921 7f7bf02d4a80 Options.compaction_readahead_size: 0
+2021/03/14-00:22:27.968921 7f7bf02d4a80 Compression algorithms supported:
+2021/03/14-00:22:27.968922 7f7bf02d4a80 Snappy supported: 1
+2021/03/14-00:22:27.968923 7f7bf02d4a80 Zlib supported: 1
+2021/03/14-00:22:27.968923 7f7bf02d4a80 Bzip supported: 1
+2021/03/14-00:22:27.968924 7f7bf02d4a80 LZ4 supported: 1
+2021/03/14-00:22:27.968924 7f7bf02d4a80 ZSTDNotFinal supported: 1
+2021/03/14-00:22:27.968929 7f7bf02d4a80 ZSTD supported: 1
+2021/03/14-00:22:27.968932 7f7bf02d4a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:22:27.968934 7f7bf02d4a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:22:27.969026 7f7bf02d4a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:22:27.969085 7f7bf02d4a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:22:27.969086 7f7bf02d4a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:22:27.969087 7f7bf02d4a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:22:27.969088 7f7bf02d4a80 Options.compaction_filter: None
+2021/03/14-00:22:27.969089 7f7bf02d4a80 Options.compaction_filter_factory: None
+2021/03/14-00:22:27.969089 7f7bf02d4a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:22:27.969090 7f7bf02d4a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:22:27.969106 7f7bf02d4a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x275a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x273fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:22:27.969107 7f7bf02d4a80 Options.write_buffer_size: 134217728
+2021/03/14-00:22:27.969108 7f7bf02d4a80 Options.max_write_buffer_number: 6
+2021/03/14-00:22:27.969109 7f7bf02d4a80 Options.compression[0]: NoCompression
+2021/03/14-00:22:27.969109 7f7bf02d4a80 Options.compression[1]: NoCompression
+2021/03/14-00:22:27.969110 7f7bf02d4a80 Options.compression[2]: Snappy
+2021/03/14-00:22:27.969111 7f7bf02d4a80 Options.compression[3]: Snappy
+2021/03/14-00:22:27.969111 7f7bf02d4a80 Options.compression[4]: Snappy
+2021/03/14-00:22:27.969112 7f7bf02d4a80 Options.compression[5]: Snappy
+2021/03/14-00:22:27.969112 7f7bf02d4a80 Options.compression[6]: Snappy
+2021/03/14-00:22:27.969113 7f7bf02d4a80 Options.bottommost_compression: Disabled
+2021/03/14-00:22:27.969114 7f7bf02d4a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:22:27.969115 7f7bf02d4a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:22:27.969115 7f7bf02d4a80 Options.num_levels: 7
+2021/03/14-00:22:27.969116 7f7bf02d4a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:22:27.969116 7f7bf02d4a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:22:27.969117 7f7bf02d4a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:22:27.969118 7f7bf02d4a80 Options.compression_opts.level: -1
+2021/03/14-00:22:27.969118 7f7bf02d4a80 Options.compression_opts.strategy: 0
+2021/03/14-00:22:27.969119 7f7bf02d4a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:22:27.969119 7f7bf02d4a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:22:27.969120 7f7bf02d4a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:22:27.969121 7f7bf02d4a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:22:27.969121 7f7bf02d4a80 Options.target_file_size_base: 67108864
+2021/03/14-00:22:27.969122 7f7bf02d4a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:22:27.969123 7f7bf02d4a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:22:27.969123 7f7bf02d4a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:22:27.969124 7f7bf02d4a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:22:27.969126 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:22:27.969133 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:22:27.969134 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:22:27.969135 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:22:27.969135 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:22:27.969136 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:22:27.969137 7f7bf02d4a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:22:27.969137 7f7bf02d4a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:22:27.969138 7f7bf02d4a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:22:27.969138 7f7bf02d4a80 Options.arena_block_size: 16777216
+2021/03/14-00:22:27.969139 7f7bf02d4a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:22:27.969140 7f7bf02d4a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:22:27.969140 7f7bf02d4a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:22:27.969141 7f7bf02d4a80 Options.disable_auto_compactions: 0
+2021/03/14-00:22:27.969142 7f7bf02d4a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:22:27.969143 7f7bf02d4a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:22:27.969144 7f7bf02d4a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:22:27.969145 7f7bf02d4a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:22:27.969145 7f7bf02d4a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:22:27.969146 7f7bf02d4a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:22:27.969146 7f7bf02d4a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:22:27.969147 7f7bf02d4a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:22:27.969148 7f7bf02d4a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:22:27.969149 7f7bf02d4a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:22:27.969149 7f7bf02d4a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:22:27.969150 7f7bf02d4a80 Options.table_properties_collectors:
+2021/03/14-00:22:27.969150 7f7bf02d4a80 Options.inplace_update_support: 0
+2021/03/14-00:22:27.969151 7f7bf02d4a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:22:27.969152 7f7bf02d4a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:22:27.969153 7f7bf02d4a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:22:27.969153 7f7bf02d4a80 Options.bloom_locality: 0
+2021/03/14-00:22:27.969154 7f7bf02d4a80 Options.max_successive_merges: 0
+2021/03/14-00:22:27.969154 7f7bf02d4a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:22:27.969155 7f7bf02d4a80 Options.paranoid_file_checks: 0
+2021/03/14-00:22:27.969155 7f7bf02d4a80 Options.force_consistency_checks: 0
+2021/03/14-00:22:27.969156 7f7bf02d4a80 Options.report_bg_io_stats: 0
+2021/03/14-00:22:27.969554 7f7bf02d4a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:22:27.969556 7f7bf02d4a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:22:27.969654 7f7bf02d4a80 EVENT_LOG_v1 {"time_micros": 1615677747969642, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:22:27.969659 7f7bf02d4a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:22:28.791362 7f7bf02d4a80 EVENT_LOG_v1 {"time_micros": 1615677748791358, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677780796012 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677780796012
new file mode 100644
index 0000000..356352d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677780796012
@@ -0,0 +1,186 @@
+2021/03/14-00:22:59.974199 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:22:59.974307 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:22:59.974308 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:22:59.974311 7ffff7156a80 DB SUMMARY
+2021/03/14-00:22:59.974409 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:22:59.974410 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:22:59.974418 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:22:59.974419 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:22:59.974420 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:22:59.974424 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:22:59.974424 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:22:59.974425 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:22:59.974426 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:22:59.974426 7ffff7156a80 Options.info_log: 0xfb2fa0
+2021/03/14-00:22:59.974427 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:22:59.974428 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:22:59.974428 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:22:59.974429 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:22:59.974430 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:22:59.974430 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:22:59.974431 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:22:59.974431 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:22:59.974432 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:22:59.974433 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:22:59.974434 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:22:59.974434 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:22:59.974435 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:22:59.974435 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:22:59.974436 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:22:59.974437 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:22:59.974437 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:22:59.974438 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:22:59.974438 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:22:59.974439 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:22:59.974440 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:22:59.974440 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:22:59.974441 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:22:59.974442 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:22:59.974442 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:22:59.974443 7ffff7156a80 Options.write_buffer_manager: 0xf9aeb0
+2021/03/14-00:22:59.974443 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:22:59.974444 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:22:59.974444 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:22:59.974445 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:22:59.974446 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:22:59.974447 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:22:59.974457 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:22:59.974457 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:22:59.974458 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:22:59.974459 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:22:59.974459 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:22:59.974460 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:22:59.974460 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:22:59.974461 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:22:59.974462 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:22:59.974462 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:22:59.974463 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:22:59.974463 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:22:59.974464 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:22:59.974465 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:22:59.974466 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:22:59.974467 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:22:59.974467 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:22:59.974468 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:22:59.974468 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:22:59.974469 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:22:59.974470 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:22:59.974470 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:22:59.974471 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:22:59.974472 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:22:59.974472 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:22:59.974473 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:22:59.974473 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:22:59.974474 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:22:59.974475 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:22:59.974475 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:22:59.974476 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:22:59.974476 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:22:59.974478 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:22:59.974482 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:22:59.974483 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:22:59.974604 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:22:59.974660 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:22:59.974662 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:22:59.974663 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:22:59.974664 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:22:59.974664 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:22:59.974665 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:22:59.974666 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:22:59.974680 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfaa840)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xf8ff40
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:22:59.974681 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:22:59.974682 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:22:59.974683 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:22:59.974683 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:22:59.974684 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:22:59.974685 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:22:59.974685 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:22:59.974686 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:22:59.974686 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:22:59.974687 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:22:59.974688 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:22:59.974689 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:22:59.974689 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:22:59.974690 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:22:59.974691 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:22:59.974691 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:22:59.974692 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:22:59.974693 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:22:59.974693 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:22:59.974694 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:22:59.974695 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:22:59.974695 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:22:59.974696 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:22:59.974697 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:22:59.974697 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:22:59.974698 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:22:59.974698 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:22:59.974700 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:22:59.974708 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:22:59.974709 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:22:59.974710 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:22:59.974710 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:22:59.974711 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:22:59.974712 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:22:59.974712 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:22:59.974713 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:22:59.974713 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:22:59.974714 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:22:59.974715 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:22:59.974715 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:22:59.974716 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:22:59.974717 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:22:59.974718 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:22:59.974719 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:22:59.974719 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:22:59.974720 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:22:59.974721 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:22:59.974721 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:22:59.974722 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:22:59.974723 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:22:59.974723 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:22:59.974724 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:22:59.974725 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:22:59.974725 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:22:59.974726 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:22:59.974726 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:22:59.974727 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:22:59.974728 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:22:59.974729 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:22:59.974729 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:22:59.974730 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:22:59.974730 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:22:59.974731 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:22:59.976311 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:22:59.976315 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:22:59.976415 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615677779976406, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:22:59.976421 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:23:00.788933 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677781678713 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677781678713
new file mode 100644
index 0000000..05e5bdf
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677781678713
@@ -0,0 +1,186 @@
+2021/03/14-00:23:00.796661 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:23:00.796718 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:23:00.796721 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:23:00.796723 7ffff7156a80 DB SUMMARY
+2021/03/14-00:23:00.796830 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:23:00.796831 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:23:00.796844 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:23:00.796846 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:23:00.796848 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:23:00.796852 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:23:00.796853 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:23:00.796854 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:23:00.796855 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:23:00.796856 7ffff7156a80 Options.info_log: 0xfc4c60
+2021/03/14-00:23:00.796858 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:23:00.796859 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:23:00.796860 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:23:00.796861 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:23:00.796862 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:23:00.796864 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:23:00.796865 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:23:00.796866 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:23:00.796867 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:23:00.796868 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:23:00.796869 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:23:00.796871 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:23:00.796872 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:23:00.796873 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:23:00.796874 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:23:00.796875 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:23:00.796876 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:23:00.796877 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:23:00.796878 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:23:00.796879 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:23:00.796880 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:23:00.796881 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:23:00.796882 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:23:00.796884 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:23:00.796885 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:23:00.796886 7ffff7156a80 Options.write_buffer_manager: 0xfc4b60
+2021/03/14-00:23:00.796887 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:23:00.796888 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:23:00.796889 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:23:00.796890 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:23:00.796892 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:23:00.796893 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:23:00.796905 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:23:00.796906 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:23:00.796907 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:23:00.796908 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:23:00.796909 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:23:00.796911 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:23:00.796912 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:23:00.796913 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:23:00.796914 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:23:00.796915 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:23:00.796917 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:23:00.796918 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:23:00.796919 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:23:00.796920 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:23:00.796921 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:23:00.796922 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:23:00.796923 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:23:00.796924 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:23:00.796926 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:23:00.796927 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:23:00.796928 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:23:00.796929 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:23:00.796930 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:23:00.796931 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:23:00.796932 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:23:00.796933 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:23:00.796934 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:23:00.796936 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:23:00.796937 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:23:00.796938 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:23:00.796939 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:23:00.796940 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:23:00.796942 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:23:00.796944 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:23:00.796946 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:23:00.797039 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:23:00.797091 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:23:00.797093 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:23:00.797095 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:23:00.797096 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:23:00.797097 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:23:00.797098 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:23:00.797099 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:23:00.797116 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfc5dd0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xfc9a30
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:23:00.797117 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:23:00.797117 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:23:00.797118 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:23:00.797119 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:23:00.797120 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:23:00.797120 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:23:00.797121 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:23:00.797121 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:23:00.797122 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:23:00.797122 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:23:00.797123 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:23:00.797124 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:23:00.797125 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:23:00.797125 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:23:00.797126 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:23:00.797126 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:23:00.797127 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:23:00.797128 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:23:00.797128 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:23:00.797129 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:23:00.797129 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:23:00.797130 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:23:00.797130 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:23:00.797131 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:23:00.797132 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:23:00.797132 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:23:00.797133 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:23:00.797134 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:23:00.797143 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:23:00.797144 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:23:00.797145 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:23:00.797145 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:23:00.797146 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:23:00.797146 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:23:00.797147 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:23:00.797147 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:23:00.797148 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:23:00.797149 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:23:00.797149 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:23:00.797150 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:23:00.797150 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:23:00.797152 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:23:00.797152 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:23:00.797153 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:23:00.797154 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:23:00.797154 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:23:00.797155 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:23:00.797155 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:23:00.797157 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:23:00.797157 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:23:00.797158 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:23:00.797158 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:23:00.797159 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:23:00.797160 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:23:00.797160 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:23:00.797161 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:23:00.797162 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:23:00.797162 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:23:00.797163 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:23:00.797163 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:23:00.797164 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:23:00.797164 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:23:00.797165 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:23:00.798712 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:23:00.798716 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:23:00.798808 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615677780798805, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:23:00.798811 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:23:01.671898 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677782517373 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677782517373
new file mode 100644
index 0000000..a8499e9
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677782517373
@@ -0,0 +1,186 @@
+2021/03/14-00:23:01.679289 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:23:01.679324 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:23:01.679325 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:23:01.679326 7ffff7156a80 DB SUMMARY
+2021/03/14-00:23:01.679405 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:23:01.679406 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:23:01.679414 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:23:01.679415 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:23:01.679416 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:23:01.679418 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:23:01.679419 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:23:01.679419 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:23:01.679420 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:23:01.679421 7ffff7156a80 Options.info_log: 0xff5380
+2021/03/14-00:23:01.679421 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:23:01.679422 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:23:01.679423 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:23:01.679423 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:23:01.679424 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:23:01.679424 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:23:01.679425 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:23:01.679425 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:23:01.679426 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:23:01.679427 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:23:01.679427 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:23:01.679428 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:23:01.679428 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:23:01.679429 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:23:01.679429 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:23:01.679430 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:23:01.679431 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:23:01.679431 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:23:01.679432 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:23:01.679432 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:23:01.679433 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:23:01.679434 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:23:01.679434 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:23:01.679435 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:23:01.679435 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:23:01.679436 7ffff7156a80 Options.write_buffer_manager: 0xff7210
+2021/03/14-00:23:01.679436 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:23:01.679437 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:23:01.679438 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:23:01.679438 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:23:01.679439 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:23:01.679439 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:23:01.679447 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:23:01.679448 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:23:01.679448 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:23:01.679449 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:23:01.679449 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:23:01.679450 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:23:01.679451 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:23:01.679451 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:23:01.679452 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:23:01.679452 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:23:01.679453 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:23:01.679453 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:23:01.679454 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:23:01.679455 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:23:01.679455 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:23:01.679456 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:23:01.679456 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:23:01.679457 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:23:01.679457 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:23:01.679458 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:23:01.679458 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:23:01.679459 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:23:01.679460 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:23:01.679460 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:23:01.679461 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:23:01.679461 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:23:01.679462 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:23:01.679462 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:23:01.679463 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:23:01.679464 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:23:01.679464 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:23:01.679465 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:23:01.679465 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:23:01.679467 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:23:01.679468 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:23:01.679550 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:23:01.679589 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:23:01.679591 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:23:01.679591 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:23:01.679592 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:23:01.679593 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:23:01.679593 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:23:01.679594 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:23:01.679609 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xff67f0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xffa950
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:23:01.679610 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:23:01.679611 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:23:01.679611 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:23:01.679612 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:23:01.679613 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:23:01.679613 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:23:01.679614 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:23:01.679615 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:23:01.679615 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:23:01.679616 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:23:01.679616 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:23:01.679617 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:23:01.679618 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:23:01.679618 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:23:01.679619 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:23:01.679619 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:23:01.679620 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:23:01.679621 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:23:01.679621 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:23:01.679622 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:23:01.679622 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:23:01.679623 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:23:01.679624 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:23:01.679624 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:23:01.679625 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:23:01.679625 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:23:01.679626 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:23:01.679628 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:23:01.679635 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:23:01.679636 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:23:01.679637 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:23:01.679637 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:23:01.679638 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:23:01.679638 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:23:01.679639 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:23:01.679640 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:23:01.679640 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:23:01.679641 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:23:01.679641 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:23:01.679642 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:23:01.679643 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:23:01.679644 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:23:01.679644 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:23:01.679645 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:23:01.679645 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:23:01.679646 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:23:01.679647 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:23:01.679647 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:23:01.679648 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:23:01.679649 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:23:01.679649 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:23:01.679650 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:23:01.679650 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:23:01.679651 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:23:01.679652 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:23:01.679652 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:23:01.679653 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:23:01.679654 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:23:01.679654 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:23:01.679655 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:23:01.679655 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:23:01.679656 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:23:01.679656 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:23:01.681345 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:23:01.681349 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:23:01.681424 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615677781681422, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:23:01.681427 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:23:02.510472 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677864014895 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677864014895
new file mode 100644
index 0000000..b941606
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677864014895
@@ -0,0 +1,186 @@
+2021/03/14-00:23:02.518051 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:23:02.518086 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:23:02.518087 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:23:02.518089 7ffff7156a80 DB SUMMARY
+2021/03/14-00:23:02.518164 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:23:02.518165 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:23:02.518173 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:23:02.518174 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:23:02.518175 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:23:02.518177 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:23:02.518178 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:23:02.518179 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:23:02.518179 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:23:02.518180 7ffff7156a80 Options.info_log: 0x1025100
+2021/03/14-00:23:02.518180 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:23:02.518181 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:23:02.518182 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:23:02.518182 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:23:02.518183 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:23:02.518183 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:23:02.518184 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:23:02.518185 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:23:02.518185 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:23:02.518186 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:23:02.518186 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:23:02.518187 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:23:02.518187 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:23:02.518188 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:23:02.518189 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:23:02.518189 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:23:02.518190 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:23:02.518190 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:23:02.518191 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:23:02.518192 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:23:02.518192 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:23:02.518193 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:23:02.518193 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:23:02.518194 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:23:02.518194 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:23:02.518195 7ffff7156a80 Options.write_buffer_manager: 0x1045e70
+2021/03/14-00:23:02.518196 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:23:02.518196 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:23:02.518197 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:23:02.518197 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:23:02.518198 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:23:02.518198 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:23:02.518206 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:23:02.518206 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:23:02.518207 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:23:02.518208 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:23:02.518208 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:23:02.518209 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:23:02.518209 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:23:02.518210 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:23:02.518210 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:23:02.518211 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:23:02.518212 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:23:02.518212 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:23:02.518213 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:23:02.518213 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:23:02.518214 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:23:02.518214 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:23:02.518215 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:23:02.518215 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:23:02.518216 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:23:02.518217 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:23:02.518217 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:23:02.518218 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:23:02.518218 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:23:02.518219 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:23:02.518219 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:23:02.518220 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:23:02.518221 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:23:02.518221 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:23:02.518222 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:23:02.518222 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:23:02.518223 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:23:02.518223 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:23:02.518224 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:23:02.518226 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:23:02.518227 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:23:02.518323 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:23:02.518364 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:23:02.518365 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:23:02.518366 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:23:02.518367 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:23:02.518367 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:23:02.518368 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:23:02.518369 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:23:02.518383 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10272a0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x102a840
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:23:02.518383 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:23:02.518384 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:23:02.518385 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:23:02.518385 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:23:02.518386 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:23:02.518387 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:23:02.518387 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:23:02.518388 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:23:02.518388 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:23:02.518389 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:23:02.518390 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:23:02.518390 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:23:02.518391 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:23:02.518392 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:23:02.518392 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:23:02.518393 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:23:02.518393 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:23:02.518394 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:23:02.518394 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:23:02.518395 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:23:02.518396 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:23:02.518396 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:23:02.518397 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:23:02.518397 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:23:02.518398 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:23:02.518399 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:23:02.518399 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:23:02.518400 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:23:02.518409 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:23:02.518410 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:23:02.518410 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:23:02.518411 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:23:02.518411 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:23:02.518412 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:23:02.518412 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:23:02.518413 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:23:02.518414 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:23:02.518414 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:23:02.518415 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:23:02.518415 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:23:02.518416 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:23:02.518417 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:23:02.518418 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:23:02.518419 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:23:02.518419 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:23:02.518420 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:23:02.518420 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:23:02.518421 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:23:02.518422 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:23:02.518422 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:23:02.518423 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:23:02.518424 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:23:02.518424 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:23:02.518425 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:23:02.518425 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:23:02.518426 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:23:02.518427 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:23:02.518428 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:23:02.518428 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:23:02.518429 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:23:02.518429 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:23:02.518430 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:23:02.518430 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:23:02.519827 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:23:02.519831 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:23:02.519905 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615677782519902, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:23:02.519908 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:23:03.398747 7ffff7156a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677864722414 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677864722414
new file mode 100644
index 0000000..88071c1
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677864722414
@@ -0,0 +1,186 @@
+2021/03/14-00:24:24.015303 7f0d350eda80 RocksDB version: 5.11.3
+2021/03/14-00:24:24.015397 7f0d350eda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:24:24.015399 7f0d350eda80 Compile date Mar 13 2021
+2021/03/14-00:24:24.015402 7f0d350eda80 DB SUMMARY
+2021/03/14-00:24:24.015497 7f0d350eda80 CURRENT file: CURRENT
+2021/03/14-00:24:24.015498 7f0d350eda80 IDENTITY file: IDENTITY
+2021/03/14-00:24:24.015508 7f0d350eda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:24:24.015509 7f0d350eda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:24:24.015510 7f0d350eda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:24:24.015514 7f0d350eda80 Options.error_if_exists: 0
+2021/03/14-00:24:24.015514 7f0d350eda80 Options.create_if_missing: 1
+2021/03/14-00:24:24.015515 7f0d350eda80 Options.paranoid_checks: 1
+2021/03/14-00:24:24.015516 7f0d350eda80 Options.env: 0x7f0d35aa7080
+2021/03/14-00:24:24.015517 7f0d350eda80 Options.info_log: 0x296cca0
+2021/03/14-00:24:24.015517 7f0d350eda80 Options.max_file_opening_threads: 16
+2021/03/14-00:24:24.015518 7f0d350eda80 Options.statistics: (nil)
+2021/03/14-00:24:24.015519 7f0d350eda80 Options.use_fsync: 0
+2021/03/14-00:24:24.015519 7f0d350eda80 Options.max_log_file_size: 0
+2021/03/14-00:24:24.015520 7f0d350eda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:24:24.015521 7f0d350eda80 Options.log_file_time_to_roll: 0
+2021/03/14-00:24:24.015522 7f0d350eda80 Options.keep_log_file_num: 1000
+2021/03/14-00:24:24.015522 7f0d350eda80 Options.recycle_log_file_num: 0
+2021/03/14-00:24:24.015523 7f0d350eda80 Options.allow_fallocate: 1
+2021/03/14-00:24:24.015524 7f0d350eda80 Options.allow_mmap_reads: 0
+2021/03/14-00:24:24.015524 7f0d350eda80 Options.allow_mmap_writes: 0
+2021/03/14-00:24:24.015525 7f0d350eda80 Options.use_direct_reads: 0
+2021/03/14-00:24:24.015526 7f0d350eda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:24:24.015526 7f0d350eda80 Options.create_missing_column_families: 0
+2021/03/14-00:24:24.015527 7f0d350eda80 Options.db_log_dir:
+2021/03/14-00:24:24.015527 7f0d350eda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:24:24.015528 7f0d350eda80 Options.table_cache_numshardbits: 6
+2021/03/14-00:24:24.015529 7f0d350eda80 Options.max_subcompactions: 1
+2021/03/14-00:24:24.015530 7f0d350eda80 Options.max_background_flushes: -1
+2021/03/14-00:24:24.015530 7f0d350eda80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:24:24.015531 7f0d350eda80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:24:24.015532 7f0d350eda80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:24:24.015532 7f0d350eda80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:24:24.015533 7f0d350eda80 Options.advise_random_on_open: 1
+2021/03/14-00:24:24.015534 7f0d350eda80 Options.db_write_buffer_size: 0
+2021/03/14-00:24:24.015534 7f0d350eda80 Options.write_buffer_manager: 0x2954b90
+2021/03/14-00:24:24.015535 7f0d350eda80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:24:24.015536 7f0d350eda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:24:24.015536 7f0d350eda80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:24:24.015537 7f0d350eda80 Options.use_adaptive_mutex: 0
+2021/03/14-00:24:24.015537 7f0d350eda80 Options.rate_limiter: (nil)
+2021/03/14-00:24:24.015539 7f0d350eda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:24:24.015548 7f0d350eda80 Options.wal_recovery_mode: 2
+2021/03/14-00:24:24.015549 7f0d350eda80 Options.enable_thread_tracking: 0
+2021/03/14-00:24:24.015550 7f0d350eda80 Options.enable_pipelined_write: 0
+2021/03/14-00:24:24.015550 7f0d350eda80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:24:24.015551 7f0d350eda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:24:24.015552 7f0d350eda80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:24:24.015552 7f0d350eda80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:24:24.015553 7f0d350eda80 Options.row_cache: None
+2021/03/14-00:24:24.015554 7f0d350eda80 Options.wal_filter: None
+2021/03/14-00:24:24.015554 7f0d350eda80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:24:24.015555 7f0d350eda80 Options.allow_ingest_behind: 0
+2021/03/14-00:24:24.015556 7f0d350eda80 Options.preserve_deletes: 0
+2021/03/14-00:24:24.015556 7f0d350eda80 Options.two_write_queues: 0
+2021/03/14-00:24:24.015557 7f0d350eda80 Options.manual_wal_flush: 0
+2021/03/14-00:24:24.015558 7f0d350eda80 Options.max_background_jobs: 16
+2021/03/14-00:24:24.015559 7f0d350eda80 Options.max_background_compactions: -1
+2021/03/14-00:24:24.015560 7f0d350eda80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:24:24.015560 7f0d350eda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:24:24.015561 7f0d350eda80 Options.delayed_write_rate : 16777216
+2021/03/14-00:24:24.015562 7f0d350eda80 Options.max_total_wal_size: 0
+2021/03/14-00:24:24.015562 7f0d350eda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:24:24.015563 7f0d350eda80 Options.stats_dump_period_sec: 600
+2021/03/14-00:24:24.015564 7f0d350eda80 Options.max_open_files: -1
+2021/03/14-00:24:24.015565 7f0d350eda80 Options.bytes_per_sync: 0
+2021/03/14-00:24:24.015565 7f0d350eda80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:24:24.015566 7f0d350eda80 Options.compaction_readahead_size: 0
+2021/03/14-00:24:24.015566 7f0d350eda80 Compression algorithms supported:
+2021/03/14-00:24:24.015567 7f0d350eda80 Snappy supported: 1
+2021/03/14-00:24:24.015568 7f0d350eda80 Zlib supported: 1
+2021/03/14-00:24:24.015569 7f0d350eda80 Bzip supported: 1
+2021/03/14-00:24:24.015569 7f0d350eda80 LZ4 supported: 1
+2021/03/14-00:24:24.015570 7f0d350eda80 ZSTDNotFinal supported: 1
+2021/03/14-00:24:24.015576 7f0d350eda80 ZSTD supported: 1
+2021/03/14-00:24:24.015580 7f0d350eda80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:24:24.015582 7f0d350eda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:24:24.015748 7f0d350eda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:24:24.015835 7f0d350eda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:24:24.015838 7f0d350eda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:24:24.015839 7f0d350eda80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:24:24.015839 7f0d350eda80 Options.compaction_filter: None
+2021/03/14-00:24:24.015840 7f0d350eda80 Options.compaction_filter_factory: None
+2021/03/14-00:24:24.015841 7f0d350eda80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:24:24.015842 7f0d350eda80 Options.table_factory: BlockBasedTable
+2021/03/14-00:24:24.015861 7f0d350eda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2964520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2949c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:24:24.015862 7f0d350eda80 Options.write_buffer_size: 134217728
+2021/03/14-00:24:24.015863 7f0d350eda80 Options.max_write_buffer_number: 6
+2021/03/14-00:24:24.015864 7f0d350eda80 Options.compression[0]: NoCompression
+2021/03/14-00:24:24.015864 7f0d350eda80 Options.compression[1]: NoCompression
+2021/03/14-00:24:24.015865 7f0d350eda80 Options.compression[2]: Snappy
+2021/03/14-00:24:24.015866 7f0d350eda80 Options.compression[3]: Snappy
+2021/03/14-00:24:24.015867 7f0d350eda80 Options.compression[4]: Snappy
+2021/03/14-00:24:24.015867 7f0d350eda80 Options.compression[5]: Snappy
+2021/03/14-00:24:24.015868 7f0d350eda80 Options.compression[6]: Snappy
+2021/03/14-00:24:24.015869 7f0d350eda80 Options.bottommost_compression: Disabled
+2021/03/14-00:24:24.015870 7f0d350eda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:24:24.015871 7f0d350eda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:24:24.015872 7f0d350eda80 Options.num_levels: 7
+2021/03/14-00:24:24.015872 7f0d350eda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:24:24.015873 7f0d350eda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:24:24.015874 7f0d350eda80 Options.compression_opts.window_bits: -14
+2021/03/14-00:24:24.015874 7f0d350eda80 Options.compression_opts.level: -1
+2021/03/14-00:24:24.015875 7f0d350eda80 Options.compression_opts.strategy: 0
+2021/03/14-00:24:24.015876 7f0d350eda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:24:24.015876 7f0d350eda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:24:24.015877 7f0d350eda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:24:24.015878 7f0d350eda80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:24:24.015878 7f0d350eda80 Options.target_file_size_base: 67108864
+2021/03/14-00:24:24.015879 7f0d350eda80 Options.target_file_size_multiplier: 1
+2021/03/14-00:24:24.015880 7f0d350eda80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:24:24.015880 7f0d350eda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:24:24.015881 7f0d350eda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:24:24.015883 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:24:24.015894 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:24:24.015894 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:24:24.015895 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:24:24.015896 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:24:24.015896 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:24:24.015897 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:24:24.015898 7f0d350eda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:24:24.015898 7f0d350eda80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:24:24.015899 7f0d350eda80 Options.arena_block_size: 16777216
+2021/03/14-00:24:24.015900 7f0d350eda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:24:24.015900 7f0d350eda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:24:24.015901 7f0d350eda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:24:24.015902 7f0d350eda80 Options.disable_auto_compactions: 0
+2021/03/14-00:24:24.015904 7f0d350eda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:24:24.015905 7f0d350eda80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:24:24.015906 7f0d350eda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:24:24.015906 7f0d350eda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:24:24.015907 7f0d350eda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:24:24.015908 7f0d350eda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:24:24.015908 7f0d350eda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:24:24.015909 7f0d350eda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:24:24.015910 7f0d350eda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:24:24.015911 7f0d350eda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:24:24.015911 7f0d350eda80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:24:24.015912 7f0d350eda80 Options.table_properties_collectors:
+2021/03/14-00:24:24.015913 7f0d350eda80 Options.inplace_update_support: 0
+2021/03/14-00:24:24.015913 7f0d350eda80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:24:24.015914 7f0d350eda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:24:24.015915 7f0d350eda80 Options.memtable_huge_page_size: 0
+2021/03/14-00:24:24.015916 7f0d350eda80 Options.bloom_locality: 0
+2021/03/14-00:24:24.015916 7f0d350eda80 Options.max_successive_merges: 0
+2021/03/14-00:24:24.015917 7f0d350eda80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:24:24.015918 7f0d350eda80 Options.paranoid_file_checks: 0
+2021/03/14-00:24:24.015918 7f0d350eda80 Options.force_consistency_checks: 0
+2021/03/14-00:24:24.015919 7f0d350eda80 Options.report_bg_io_stats: 0
+2021/03/14-00:24:24.016439 7f0d350eda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:24:24.016442 7f0d350eda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:24:24.016570 7f0d350eda80 EVENT_LOG_v1 {"time_micros": 1615677864016555, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:24:24.016578 7f0d350eda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:24:24.709841 7f0d350eda80 EVENT_LOG_v1 {"time_micros": 1615677864709837, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677865424409 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677865424409
new file mode 100644
index 0000000..40492aa
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677865424409
@@ -0,0 +1,186 @@
+2021/03/14-00:24:24.722740 7f0d350eda80 RocksDB version: 5.11.3
+2021/03/14-00:24:24.722794 7f0d350eda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:24:24.722796 7f0d350eda80 Compile date Mar 13 2021
+2021/03/14-00:24:24.722799 7f0d350eda80 DB SUMMARY
+2021/03/14-00:24:24.722876 7f0d350eda80 CURRENT file: CURRENT
+2021/03/14-00:24:24.722877 7f0d350eda80 IDENTITY file: IDENTITY
+2021/03/14-00:24:24.722885 7f0d350eda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:24:24.722886 7f0d350eda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:24:24.722887 7f0d350eda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:24:24.722890 7f0d350eda80 Options.error_if_exists: 0
+2021/03/14-00:24:24.722891 7f0d350eda80 Options.create_if_missing: 1
+2021/03/14-00:24:24.722891 7f0d350eda80 Options.paranoid_checks: 1
+2021/03/14-00:24:24.722892 7f0d350eda80 Options.env: 0x7f0d35aa7080
+2021/03/14-00:24:24.722893 7f0d350eda80 Options.info_log: 0x296cca0
+2021/03/14-00:24:24.722893 7f0d350eda80 Options.max_file_opening_threads: 16
+2021/03/14-00:24:24.722894 7f0d350eda80 Options.statistics: (nil)
+2021/03/14-00:24:24.722895 7f0d350eda80 Options.use_fsync: 0
+2021/03/14-00:24:24.722895 7f0d350eda80 Options.max_log_file_size: 0
+2021/03/14-00:24:24.722896 7f0d350eda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:24:24.722896 7f0d350eda80 Options.log_file_time_to_roll: 0
+2021/03/14-00:24:24.722897 7f0d350eda80 Options.keep_log_file_num: 1000
+2021/03/14-00:24:24.722897 7f0d350eda80 Options.recycle_log_file_num: 0
+2021/03/14-00:24:24.722898 7f0d350eda80 Options.allow_fallocate: 1
+2021/03/14-00:24:24.722899 7f0d350eda80 Options.allow_mmap_reads: 0
+2021/03/14-00:24:24.722899 7f0d350eda80 Options.allow_mmap_writes: 0
+2021/03/14-00:24:24.722900 7f0d350eda80 Options.use_direct_reads: 0
+2021/03/14-00:24:24.722900 7f0d350eda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:24:24.722901 7f0d350eda80 Options.create_missing_column_families: 0
+2021/03/14-00:24:24.722901 7f0d350eda80 Options.db_log_dir:
+2021/03/14-00:24:24.722902 7f0d350eda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:24:24.722902 7f0d350eda80 Options.table_cache_numshardbits: 6
+2021/03/14-00:24:24.722903 7f0d350eda80 Options.max_subcompactions: 1
+2021/03/14-00:24:24.722904 7f0d350eda80 Options.max_background_flushes: -1
+2021/03/14-00:24:24.722904 7f0d350eda80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:24:24.722905 7f0d350eda80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:24:24.722905 7f0d350eda80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:24:24.722906 7f0d350eda80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:24:24.722907 7f0d350eda80 Options.advise_random_on_open: 1
+2021/03/14-00:24:24.722907 7f0d350eda80 Options.db_write_buffer_size: 0
+2021/03/14-00:24:24.722908 7f0d350eda80 Options.write_buffer_manager: 0x2954b90
+2021/03/14-00:24:24.722908 7f0d350eda80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:24:24.722909 7f0d350eda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:24:24.722909 7f0d350eda80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:24:24.722910 7f0d350eda80 Options.use_adaptive_mutex: 0
+2021/03/14-00:24:24.722910 7f0d350eda80 Options.rate_limiter: (nil)
+2021/03/14-00:24:24.722912 7f0d350eda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:24:24.722919 7f0d350eda80 Options.wal_recovery_mode: 2
+2021/03/14-00:24:24.722920 7f0d350eda80 Options.enable_thread_tracking: 0
+2021/03/14-00:24:24.722920 7f0d350eda80 Options.enable_pipelined_write: 0
+2021/03/14-00:24:24.722921 7f0d350eda80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:24:24.722921 7f0d350eda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:24:24.722922 7f0d350eda80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:24:24.722922 7f0d350eda80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:24:24.722923 7f0d350eda80 Options.row_cache: None
+2021/03/14-00:24:24.722923 7f0d350eda80 Options.wal_filter: None
+2021/03/14-00:24:24.722924 7f0d350eda80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:24:24.722925 7f0d350eda80 Options.allow_ingest_behind: 0
+2021/03/14-00:24:24.722925 7f0d350eda80 Options.preserve_deletes: 0
+2021/03/14-00:24:24.722926 7f0d350eda80 Options.two_write_queues: 0
+2021/03/14-00:24:24.722926 7f0d350eda80 Options.manual_wal_flush: 0
+2021/03/14-00:24:24.722928 7f0d350eda80 Options.max_background_jobs: 16
+2021/03/14-00:24:24.722928 7f0d350eda80 Options.max_background_compactions: -1
+2021/03/14-00:24:24.722929 7f0d350eda80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:24:24.722929 7f0d350eda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:24:24.722930 7f0d350eda80 Options.delayed_write_rate : 16777216
+2021/03/14-00:24:24.722930 7f0d350eda80 Options.max_total_wal_size: 0
+2021/03/14-00:24:24.722931 7f0d350eda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:24:24.722932 7f0d350eda80 Options.stats_dump_period_sec: 600
+2021/03/14-00:24:24.722932 7f0d350eda80 Options.max_open_files: -1
+2021/03/14-00:24:24.722933 7f0d350eda80 Options.bytes_per_sync: 0
+2021/03/14-00:24:24.722933 7f0d350eda80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:24:24.722934 7f0d350eda80 Options.compaction_readahead_size: 0
+2021/03/14-00:24:24.722934 7f0d350eda80 Compression algorithms supported:
+2021/03/14-00:24:24.722935 7f0d350eda80 Snappy supported: 1
+2021/03/14-00:24:24.722936 7f0d350eda80 Zlib supported: 1
+2021/03/14-00:24:24.722936 7f0d350eda80 Bzip supported: 1
+2021/03/14-00:24:24.722937 7f0d350eda80 LZ4 supported: 1
+2021/03/14-00:24:24.722937 7f0d350eda80 ZSTDNotFinal supported: 1
+2021/03/14-00:24:24.722941 7f0d350eda80 ZSTD supported: 1
+2021/03/14-00:24:24.722944 7f0d350eda80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:24:24.722945 7f0d350eda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:24:24.723041 7f0d350eda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:24:24.723095 7f0d350eda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:24:24.723097 7f0d350eda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:24:24.723098 7f0d350eda80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:24:24.723098 7f0d350eda80 Options.compaction_filter: None
+2021/03/14-00:24:24.723099 7f0d350eda80 Options.compaction_filter_factory: None
+2021/03/14-00:24:24.723099 7f0d350eda80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:24:24.723101 7f0d350eda80 Options.table_factory: BlockBasedTable
+2021/03/14-00:24:24.723114 7f0d350eda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2964520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2949c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:24:24.723115 7f0d350eda80 Options.write_buffer_size: 134217728
+2021/03/14-00:24:24.723116 7f0d350eda80 Options.max_write_buffer_number: 6
+2021/03/14-00:24:24.723116 7f0d350eda80 Options.compression[0]: NoCompression
+2021/03/14-00:24:24.723117 7f0d350eda80 Options.compression[1]: NoCompression
+2021/03/14-00:24:24.723118 7f0d350eda80 Options.compression[2]: Snappy
+2021/03/14-00:24:24.723118 7f0d350eda80 Options.compression[3]: Snappy
+2021/03/14-00:24:24.723119 7f0d350eda80 Options.compression[4]: Snappy
+2021/03/14-00:24:24.723119 7f0d350eda80 Options.compression[5]: Snappy
+2021/03/14-00:24:24.723120 7f0d350eda80 Options.compression[6]: Snappy
+2021/03/14-00:24:24.723121 7f0d350eda80 Options.bottommost_compression: Disabled
+2021/03/14-00:24:24.723121 7f0d350eda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:24:24.723122 7f0d350eda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:24:24.723123 7f0d350eda80 Options.num_levels: 7
+2021/03/14-00:24:24.723123 7f0d350eda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:24:24.723124 7f0d350eda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:24:24.723124 7f0d350eda80 Options.compression_opts.window_bits: -14
+2021/03/14-00:24:24.723125 7f0d350eda80 Options.compression_opts.level: -1
+2021/03/14-00:24:24.723125 7f0d350eda80 Options.compression_opts.strategy: 0
+2021/03/14-00:24:24.723126 7f0d350eda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:24:24.723127 7f0d350eda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:24:24.723127 7f0d350eda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:24:24.723128 7f0d350eda80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:24:24.723128 7f0d350eda80 Options.target_file_size_base: 67108864
+2021/03/14-00:24:24.723129 7f0d350eda80 Options.target_file_size_multiplier: 1
+2021/03/14-00:24:24.723131 7f0d350eda80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:24:24.723131 7f0d350eda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:24:24.723132 7f0d350eda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:24:24.723134 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:24:24.723141 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:24:24.723142 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:24:24.723143 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:24:24.723143 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:24:24.723144 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:24:24.723144 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:24:24.723145 7f0d350eda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:24:24.723146 7f0d350eda80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:24:24.723146 7f0d350eda80 Options.arena_block_size: 16777216
+2021/03/14-00:24:24.723147 7f0d350eda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:24:24.723147 7f0d350eda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:24:24.723148 7f0d350eda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:24:24.723149 7f0d350eda80 Options.disable_auto_compactions: 0
+2021/03/14-00:24:24.723150 7f0d350eda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:24:24.723151 7f0d350eda80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:24:24.723152 7f0d350eda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:24:24.723152 7f0d350eda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:24:24.723153 7f0d350eda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:24:24.723153 7f0d350eda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:24:24.723154 7f0d350eda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:24:24.723155 7f0d350eda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:24:24.723156 7f0d350eda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:24:24.723156 7f0d350eda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:24:24.723157 7f0d350eda80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:24:24.723157 7f0d350eda80 Options.table_properties_collectors:
+2021/03/14-00:24:24.723158 7f0d350eda80 Options.inplace_update_support: 0
+2021/03/14-00:24:24.723158 7f0d350eda80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:24:24.723159 7f0d350eda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:24:24.723160 7f0d350eda80 Options.memtable_huge_page_size: 0
+2021/03/14-00:24:24.723160 7f0d350eda80 Options.bloom_locality: 0
+2021/03/14-00:24:24.723161 7f0d350eda80 Options.max_successive_merges: 0
+2021/03/14-00:24:24.723161 7f0d350eda80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:24:24.723162 7f0d350eda80 Options.paranoid_file_checks: 0
+2021/03/14-00:24:24.723163 7f0d350eda80 Options.force_consistency_checks: 0
+2021/03/14-00:24:24.723163 7f0d350eda80 Options.report_bg_io_stats: 0
+2021/03/14-00:24:24.723551 7f0d350eda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:24:24.723554 7f0d350eda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:24:24.723651 7f0d350eda80 EVENT_LOG_v1 {"time_micros": 1615677864723641, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:24:24.723656 7f0d350eda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:24:25.411716 7f0d350eda80 EVENT_LOG_v1 {"time_micros": 1615677865411713, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615677866124220 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677866124220
new file mode 100644
index 0000000..6461c32
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615677866124220
@@ -0,0 +1,186 @@
+2021/03/14-00:24:25.424729 7f0d350eda80 RocksDB version: 5.11.3
+2021/03/14-00:24:25.424783 7f0d350eda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:24:25.424785 7f0d350eda80 Compile date Mar 13 2021
+2021/03/14-00:24:25.424787 7f0d350eda80 DB SUMMARY
+2021/03/14-00:24:25.424866 7f0d350eda80 CURRENT file: CURRENT
+2021/03/14-00:24:25.424867 7f0d350eda80 IDENTITY file: IDENTITY
+2021/03/14-00:24:25.424874 7f0d350eda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:24:25.424875 7f0d350eda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:24:25.424876 7f0d350eda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:24:25.424879 7f0d350eda80 Options.error_if_exists: 0
+2021/03/14-00:24:25.424880 7f0d350eda80 Options.create_if_missing: 1
+2021/03/14-00:24:25.424881 7f0d350eda80 Options.paranoid_checks: 1
+2021/03/14-00:24:25.424881 7f0d350eda80 Options.env: 0x7f0d35aa7080
+2021/03/14-00:24:25.424882 7f0d350eda80 Options.info_log: 0x296cca0
+2021/03/14-00:24:25.424882 7f0d350eda80 Options.max_file_opening_threads: 16
+2021/03/14-00:24:25.424883 7f0d350eda80 Options.statistics: (nil)
+2021/03/14-00:24:25.424884 7f0d350eda80 Options.use_fsync: 0
+2021/03/14-00:24:25.424884 7f0d350eda80 Options.max_log_file_size: 0
+2021/03/14-00:24:25.424885 7f0d350eda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:24:25.424885 7f0d350eda80 Options.log_file_time_to_roll: 0
+2021/03/14-00:24:25.424886 7f0d350eda80 Options.keep_log_file_num: 1000
+2021/03/14-00:24:25.424887 7f0d350eda80 Options.recycle_log_file_num: 0
+2021/03/14-00:24:25.424887 7f0d350eda80 Options.allow_fallocate: 1
+2021/03/14-00:24:25.424888 7f0d350eda80 Options.allow_mmap_reads: 0
+2021/03/14-00:24:25.424888 7f0d350eda80 Options.allow_mmap_writes: 0
+2021/03/14-00:24:25.424889 7f0d350eda80 Options.use_direct_reads: 0
+2021/03/14-00:24:25.424889 7f0d350eda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:24:25.424890 7f0d350eda80 Options.create_missing_column_families: 0
+2021/03/14-00:24:25.424890 7f0d350eda80 Options.db_log_dir:
+2021/03/14-00:24:25.424891 7f0d350eda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:24:25.424892 7f0d350eda80 Options.table_cache_numshardbits: 6
+2021/03/14-00:24:25.424892 7f0d350eda80 Options.max_subcompactions: 1
+2021/03/14-00:24:25.424893 7f0d350eda80 Options.max_background_flushes: -1
+2021/03/14-00:24:25.424893 7f0d350eda80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:24:25.424894 7f0d350eda80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:24:25.424894 7f0d350eda80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:24:25.424895 7f0d350eda80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:24:25.424896 7f0d350eda80 Options.advise_random_on_open: 1
+2021/03/14-00:24:25.424896 7f0d350eda80 Options.db_write_buffer_size: 0
+2021/03/14-00:24:25.424897 7f0d350eda80 Options.write_buffer_manager: 0x2954b90
+2021/03/14-00:24:25.424897 7f0d350eda80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:24:25.424898 7f0d350eda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:24:25.424898 7f0d350eda80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:24:25.424899 7f0d350eda80 Options.use_adaptive_mutex: 0
+2021/03/14-00:24:25.424899 7f0d350eda80 Options.rate_limiter: (nil)
+2021/03/14-00:24:25.424901 7f0d350eda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:24:25.424909 7f0d350eda80 Options.wal_recovery_mode: 2
+2021/03/14-00:24:25.424910 7f0d350eda80 Options.enable_thread_tracking: 0
+2021/03/14-00:24:25.424910 7f0d350eda80 Options.enable_pipelined_write: 0
+2021/03/14-00:24:25.424911 7f0d350eda80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:24:25.424911 7f0d350eda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:24:25.424912 7f0d350eda80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:24:25.424912 7f0d350eda80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:24:25.424913 7f0d350eda80 Options.row_cache: None
+2021/03/14-00:24:25.424913 7f0d350eda80 Options.wal_filter: None
+2021/03/14-00:24:25.424914 7f0d350eda80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:24:25.424915 7f0d350eda80 Options.allow_ingest_behind: 0
+2021/03/14-00:24:25.424915 7f0d350eda80 Options.preserve_deletes: 0
+2021/03/14-00:24:25.424916 7f0d350eda80 Options.two_write_queues: 0
+2021/03/14-00:24:25.424916 7f0d350eda80 Options.manual_wal_flush: 0
+2021/03/14-00:24:25.424917 7f0d350eda80 Options.max_background_jobs: 16
+2021/03/14-00:24:25.424918 7f0d350eda80 Options.max_background_compactions: -1
+2021/03/14-00:24:25.424918 7f0d350eda80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:24:25.424919 7f0d350eda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:24:25.424920 7f0d350eda80 Options.delayed_write_rate : 16777216
+2021/03/14-00:24:25.424920 7f0d350eda80 Options.max_total_wal_size: 0
+2021/03/14-00:24:25.424921 7f0d350eda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:24:25.424921 7f0d350eda80 Options.stats_dump_period_sec: 600
+2021/03/14-00:24:25.424922 7f0d350eda80 Options.max_open_files: -1
+2021/03/14-00:24:25.424923 7f0d350eda80 Options.bytes_per_sync: 0
+2021/03/14-00:24:25.424923 7f0d350eda80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:24:25.424924 7f0d350eda80 Options.compaction_readahead_size: 0
+2021/03/14-00:24:25.424924 7f0d350eda80 Compression algorithms supported:
+2021/03/14-00:24:25.424925 7f0d350eda80 Snappy supported: 1
+2021/03/14-00:24:25.424925 7f0d350eda80 Zlib supported: 1
+2021/03/14-00:24:25.424926 7f0d350eda80 Bzip supported: 1
+2021/03/14-00:24:25.424926 7f0d350eda80 LZ4 supported: 1
+2021/03/14-00:24:25.424927 7f0d350eda80 ZSTDNotFinal supported: 1
+2021/03/14-00:24:25.424931 7f0d350eda80 ZSTD supported: 1
+2021/03/14-00:24:25.424934 7f0d350eda80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:24:25.424935 7f0d350eda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:24:25.425027 7f0d350eda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:24:25.425082 7f0d350eda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:24:25.425084 7f0d350eda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:24:25.425085 7f0d350eda80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:24:25.425085 7f0d350eda80 Options.compaction_filter: None
+2021/03/14-00:24:25.425086 7f0d350eda80 Options.compaction_filter_factory: None
+2021/03/14-00:24:25.425086 7f0d350eda80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:24:25.425087 7f0d350eda80 Options.table_factory: BlockBasedTable
+2021/03/14-00:24:25.425101 7f0d350eda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2964520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2949c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:24:25.425101 7f0d350eda80 Options.write_buffer_size: 134217728
+2021/03/14-00:24:25.425102 7f0d350eda80 Options.max_write_buffer_number: 6
+2021/03/14-00:24:25.425103 7f0d350eda80 Options.compression[0]: NoCompression
+2021/03/14-00:24:25.425103 7f0d350eda80 Options.compression[1]: NoCompression
+2021/03/14-00:24:25.425104 7f0d350eda80 Options.compression[2]: Snappy
+2021/03/14-00:24:25.425105 7f0d350eda80 Options.compression[3]: Snappy
+2021/03/14-00:24:25.425105 7f0d350eda80 Options.compression[4]: Snappy
+2021/03/14-00:24:25.425106 7f0d350eda80 Options.compression[5]: Snappy
+2021/03/14-00:24:25.425106 7f0d350eda80 Options.compression[6]: Snappy
+2021/03/14-00:24:25.425107 7f0d350eda80 Options.bottommost_compression: Disabled
+2021/03/14-00:24:25.425108 7f0d350eda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:24:25.425108 7f0d350eda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:24:25.425109 7f0d350eda80 Options.num_levels: 7
+2021/03/14-00:24:25.425110 7f0d350eda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:24:25.425110 7f0d350eda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:24:25.425111 7f0d350eda80 Options.compression_opts.window_bits: -14
+2021/03/14-00:24:25.425111 7f0d350eda80 Options.compression_opts.level: -1
+2021/03/14-00:24:25.425112 7f0d350eda80 Options.compression_opts.strategy: 0
+2021/03/14-00:24:25.425112 7f0d350eda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:24:25.425113 7f0d350eda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:24:25.425113 7f0d350eda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:24:25.425114 7f0d350eda80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:24:25.425115 7f0d350eda80 Options.target_file_size_base: 67108864
+2021/03/14-00:24:25.425115 7f0d350eda80 Options.target_file_size_multiplier: 1
+2021/03/14-00:24:25.425116 7f0d350eda80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:24:25.425116 7f0d350eda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:24:25.425117 7f0d350eda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:24:25.425118 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:24:25.425126 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:24:25.425127 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:24:25.425127 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:24:25.425128 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:24:25.425128 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:24:25.425129 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:24:25.425130 7f0d350eda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:24:25.425130 7f0d350eda80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:24:25.425131 7f0d350eda80 Options.arena_block_size: 16777216
+2021/03/14-00:24:25.425131 7f0d350eda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:24:25.425132 7f0d350eda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:24:25.425133 7f0d350eda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:24:25.425133 7f0d350eda80 Options.disable_auto_compactions: 0
+2021/03/14-00:24:25.425135 7f0d350eda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:24:25.425135 7f0d350eda80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:24:25.425136 7f0d350eda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:24:25.425137 7f0d350eda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:24:25.425137 7f0d350eda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:24:25.425138 7f0d350eda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:24:25.425138 7f0d350eda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:24:25.425139 7f0d350eda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:24:25.425140 7f0d350eda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:24:25.425140 7f0d350eda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:24:25.425141 7f0d350eda80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:24:25.425141 7f0d350eda80 Options.table_properties_collectors:
+2021/03/14-00:24:25.425142 7f0d350eda80 Options.inplace_update_support: 0
+2021/03/14-00:24:25.425143 7f0d350eda80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:24:25.425143 7f0d350eda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:24:25.425144 7f0d350eda80 Options.memtable_huge_page_size: 0
+2021/03/14-00:24:25.425145 7f0d350eda80 Options.bloom_locality: 0
+2021/03/14-00:24:25.425145 7f0d350eda80 Options.max_successive_merges: 0
+2021/03/14-00:24:25.425146 7f0d350eda80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:24:25.425146 7f0d350eda80 Options.paranoid_file_checks: 0
+2021/03/14-00:24:25.425147 7f0d350eda80 Options.force_consistency_checks: 0
+2021/03/14-00:24:25.425147 7f0d350eda80 Options.report_bg_io_stats: 0
+2021/03/14-00:24:25.425522 7f0d350eda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:24:25.425525 7f0d350eda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:24:25.425624 7f0d350eda80 EVENT_LOG_v1 {"time_micros": 1615677865425614, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:24:25.425630 7f0d350eda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:24:26.111634 7f0d350eda80 EVENT_LOG_v1 {"time_micros": 1615677866111631, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678040848207 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678040848207
new file mode 100644
index 0000000..a75baf8
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678040848207
@@ -0,0 +1,186 @@
+2021/03/14-00:24:26.124553 7f0d350eda80 RocksDB version: 5.11.3
+2021/03/14-00:24:26.124605 7f0d350eda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:24:26.124607 7f0d350eda80 Compile date Mar 13 2021
+2021/03/14-00:24:26.124609 7f0d350eda80 DB SUMMARY
+2021/03/14-00:24:26.124690 7f0d350eda80 CURRENT file: CURRENT
+2021/03/14-00:24:26.124691 7f0d350eda80 IDENTITY file: IDENTITY
+2021/03/14-00:24:26.124699 7f0d350eda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:24:26.124700 7f0d350eda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:24:26.124701 7f0d350eda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:24:26.124706 7f0d350eda80 Options.error_if_exists: 0
+2021/03/14-00:24:26.124706 7f0d350eda80 Options.create_if_missing: 1
+2021/03/14-00:24:26.124707 7f0d350eda80 Options.paranoid_checks: 1
+2021/03/14-00:24:26.124708 7f0d350eda80 Options.env: 0x7f0d35aa7080
+2021/03/14-00:24:26.124708 7f0d350eda80 Options.info_log: 0x296cca0
+2021/03/14-00:24:26.124709 7f0d350eda80 Options.max_file_opening_threads: 16
+2021/03/14-00:24:26.124709 7f0d350eda80 Options.statistics: (nil)
+2021/03/14-00:24:26.124710 7f0d350eda80 Options.use_fsync: 0
+2021/03/14-00:24:26.124711 7f0d350eda80 Options.max_log_file_size: 0
+2021/03/14-00:24:26.124711 7f0d350eda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:24:26.124712 7f0d350eda80 Options.log_file_time_to_roll: 0
+2021/03/14-00:24:26.124713 7f0d350eda80 Options.keep_log_file_num: 1000
+2021/03/14-00:24:26.124713 7f0d350eda80 Options.recycle_log_file_num: 0
+2021/03/14-00:24:26.124714 7f0d350eda80 Options.allow_fallocate: 1
+2021/03/14-00:24:26.124714 7f0d350eda80 Options.allow_mmap_reads: 0
+2021/03/14-00:24:26.124715 7f0d350eda80 Options.allow_mmap_writes: 0
+2021/03/14-00:24:26.124715 7f0d350eda80 Options.use_direct_reads: 0
+2021/03/14-00:24:26.124716 7f0d350eda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:24:26.124716 7f0d350eda80 Options.create_missing_column_families: 0
+2021/03/14-00:24:26.124717 7f0d350eda80 Options.db_log_dir:
+2021/03/14-00:24:26.124718 7f0d350eda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:24:26.124718 7f0d350eda80 Options.table_cache_numshardbits: 6
+2021/03/14-00:24:26.124719 7f0d350eda80 Options.max_subcompactions: 1
+2021/03/14-00:24:26.124719 7f0d350eda80 Options.max_background_flushes: -1
+2021/03/14-00:24:26.124720 7f0d350eda80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:24:26.124720 7f0d350eda80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:24:26.124721 7f0d350eda80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:24:26.124722 7f0d350eda80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:24:26.124722 7f0d350eda80 Options.advise_random_on_open: 1
+2021/03/14-00:24:26.124723 7f0d350eda80 Options.db_write_buffer_size: 0
+2021/03/14-00:24:26.124723 7f0d350eda80 Options.write_buffer_manager: 0x2954b90
+2021/03/14-00:24:26.124724 7f0d350eda80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:24:26.124724 7f0d350eda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:24:26.124725 7f0d350eda80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:24:26.124725 7f0d350eda80 Options.use_adaptive_mutex: 0
+2021/03/14-00:24:26.124726 7f0d350eda80 Options.rate_limiter: (nil)
+2021/03/14-00:24:26.124727 7f0d350eda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:24:26.124735 7f0d350eda80 Options.wal_recovery_mode: 2
+2021/03/14-00:24:26.124736 7f0d350eda80 Options.enable_thread_tracking: 0
+2021/03/14-00:24:26.124736 7f0d350eda80 Options.enable_pipelined_write: 0
+2021/03/14-00:24:26.124737 7f0d350eda80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:24:26.124737 7f0d350eda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:24:26.124738 7f0d350eda80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:24:26.124739 7f0d350eda80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:24:26.124739 7f0d350eda80 Options.row_cache: None
+2021/03/14-00:24:26.124740 7f0d350eda80 Options.wal_filter: None
+2021/03/14-00:24:26.124740 7f0d350eda80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:24:26.124741 7f0d350eda80 Options.allow_ingest_behind: 0
+2021/03/14-00:24:26.124741 7f0d350eda80 Options.preserve_deletes: 0
+2021/03/14-00:24:26.124742 7f0d350eda80 Options.two_write_queues: 0
+2021/03/14-00:24:26.124742 7f0d350eda80 Options.manual_wal_flush: 0
+2021/03/14-00:24:26.124744 7f0d350eda80 Options.max_background_jobs: 16
+2021/03/14-00:24:26.124744 7f0d350eda80 Options.max_background_compactions: -1
+2021/03/14-00:24:26.124745 7f0d350eda80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:24:26.124745 7f0d350eda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:24:26.124746 7f0d350eda80 Options.delayed_write_rate : 16777216
+2021/03/14-00:24:26.124746 7f0d350eda80 Options.max_total_wal_size: 0
+2021/03/14-00:24:26.124747 7f0d350eda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:24:26.124748 7f0d350eda80 Options.stats_dump_period_sec: 600
+2021/03/14-00:24:26.124748 7f0d350eda80 Options.max_open_files: -1
+2021/03/14-00:24:26.124749 7f0d350eda80 Options.bytes_per_sync: 0
+2021/03/14-00:24:26.124749 7f0d350eda80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:24:26.124750 7f0d350eda80 Options.compaction_readahead_size: 0
+2021/03/14-00:24:26.124750 7f0d350eda80 Compression algorithms supported:
+2021/03/14-00:24:26.124751 7f0d350eda80 Snappy supported: 1
+2021/03/14-00:24:26.124752 7f0d350eda80 Zlib supported: 1
+2021/03/14-00:24:26.124752 7f0d350eda80 Bzip supported: 1
+2021/03/14-00:24:26.124753 7f0d350eda80 LZ4 supported: 1
+2021/03/14-00:24:26.124753 7f0d350eda80 ZSTDNotFinal supported: 1
+2021/03/14-00:24:26.124757 7f0d350eda80 ZSTD supported: 1
+2021/03/14-00:24:26.124760 7f0d350eda80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:24:26.124761 7f0d350eda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:24:26.124850 7f0d350eda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:24:26.124905 7f0d350eda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:24:26.124907 7f0d350eda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:24:26.124907 7f0d350eda80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:24:26.124908 7f0d350eda80 Options.compaction_filter: None
+2021/03/14-00:24:26.124909 7f0d350eda80 Options.compaction_filter_factory: None
+2021/03/14-00:24:26.124909 7f0d350eda80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:24:26.124910 7f0d350eda80 Options.table_factory: BlockBasedTable
+2021/03/14-00:24:26.124925 7f0d350eda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2964520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2949c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:24:26.124926 7f0d350eda80 Options.write_buffer_size: 134217728
+2021/03/14-00:24:26.124926 7f0d350eda80 Options.max_write_buffer_number: 6
+2021/03/14-00:24:26.124927 7f0d350eda80 Options.compression[0]: NoCompression
+2021/03/14-00:24:26.124928 7f0d350eda80 Options.compression[1]: NoCompression
+2021/03/14-00:24:26.124928 7f0d350eda80 Options.compression[2]: Snappy
+2021/03/14-00:24:26.124929 7f0d350eda80 Options.compression[3]: Snappy
+2021/03/14-00:24:26.124930 7f0d350eda80 Options.compression[4]: Snappy
+2021/03/14-00:24:26.124930 7f0d350eda80 Options.compression[5]: Snappy
+2021/03/14-00:24:26.124931 7f0d350eda80 Options.compression[6]: Snappy
+2021/03/14-00:24:26.124931 7f0d350eda80 Options.bottommost_compression: Disabled
+2021/03/14-00:24:26.124932 7f0d350eda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:24:26.124933 7f0d350eda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:24:26.124933 7f0d350eda80 Options.num_levels: 7
+2021/03/14-00:24:26.124934 7f0d350eda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:24:26.124934 7f0d350eda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:24:26.124935 7f0d350eda80 Options.compression_opts.window_bits: -14
+2021/03/14-00:24:26.124936 7f0d350eda80 Options.compression_opts.level: -1
+2021/03/14-00:24:26.124936 7f0d350eda80 Options.compression_opts.strategy: 0
+2021/03/14-00:24:26.124937 7f0d350eda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:24:26.124937 7f0d350eda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:24:26.124938 7f0d350eda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:24:26.124938 7f0d350eda80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:24:26.124939 7f0d350eda80 Options.target_file_size_base: 67108864
+2021/03/14-00:24:26.124940 7f0d350eda80 Options.target_file_size_multiplier: 1
+2021/03/14-00:24:26.124940 7f0d350eda80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:24:26.124941 7f0d350eda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:24:26.124941 7f0d350eda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:24:26.124943 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:24:26.124950 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:24:26.124951 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:24:26.124952 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:24:26.124952 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:24:26.124953 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:24:26.124953 7f0d350eda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:24:26.124954 7f0d350eda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:24:26.124954 7f0d350eda80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:24:26.124955 7f0d350eda80 Options.arena_block_size: 16777216
+2021/03/14-00:24:26.124955 7f0d350eda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:24:26.124956 7f0d350eda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:24:26.124957 7f0d350eda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:24:26.124957 7f0d350eda80 Options.disable_auto_compactions: 0
+2021/03/14-00:24:26.124959 7f0d350eda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:24:26.124960 7f0d350eda80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:24:26.124960 7f0d350eda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:24:26.124961 7f0d350eda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:24:26.124961 7f0d350eda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:24:26.124962 7f0d350eda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:24:26.124962 7f0d350eda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:24:26.124963 7f0d350eda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:24:26.124964 7f0d350eda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:24:26.124964 7f0d350eda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:24:26.124965 7f0d350eda80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:24:26.124966 7f0d350eda80 Options.table_properties_collectors:
+2021/03/14-00:24:26.124966 7f0d350eda80 Options.inplace_update_support: 0
+2021/03/14-00:24:26.124967 7f0d350eda80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:24:26.124967 7f0d350eda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:24:26.124968 7f0d350eda80 Options.memtable_huge_page_size: 0
+2021/03/14-00:24:26.124969 7f0d350eda80 Options.bloom_locality: 0
+2021/03/14-00:24:26.124969 7f0d350eda80 Options.max_successive_merges: 0
+2021/03/14-00:24:26.124970 7f0d350eda80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:24:26.124970 7f0d350eda80 Options.paranoid_file_checks: 0
+2021/03/14-00:24:26.124971 7f0d350eda80 Options.force_consistency_checks: 0
+2021/03/14-00:24:26.124971 7f0d350eda80 Options.report_bg_io_stats: 0
+2021/03/14-00:24:26.125346 7f0d350eda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:24:26.125348 7f0d350eda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:24:26.125446 7f0d350eda80 EVENT_LOG_v1 {"time_micros": 1615677866125436, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:24:26.125451 7f0d350eda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:24:26.807615 7f0d350eda80 EVENT_LOG_v1 {"time_micros": 1615677866807612, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678041569345 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678041569345
new file mode 100644
index 0000000..710a5d2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678041569345
@@ -0,0 +1,186 @@
+2021/03/14-00:27:20.848690 7fe5c854fa80 RocksDB version: 5.11.3
+2021/03/14-00:27:20.848787 7fe5c854fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:27:20.848803 7fe5c854fa80 Compile date Mar 13 2021
+2021/03/14-00:27:20.848807 7fe5c854fa80 DB SUMMARY
+2021/03/14-00:27:20.848946 7fe5c854fa80 CURRENT file: CURRENT
+2021/03/14-00:27:20.848949 7fe5c854fa80 IDENTITY file: IDENTITY
+2021/03/14-00:27:20.848959 7fe5c854fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:27:20.848960 7fe5c854fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:27:20.848961 7fe5c854fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:27:20.848967 7fe5c854fa80 Options.error_if_exists: 0
+2021/03/14-00:27:20.848968 7fe5c854fa80 Options.create_if_missing: 1
+2021/03/14-00:27:20.848969 7fe5c854fa80 Options.paranoid_checks: 1
+2021/03/14-00:27:20.848970 7fe5c854fa80 Options.env: 0x7fe5c8f09080
+2021/03/14-00:27:20.848970 7fe5c854fa80 Options.info_log: 0x1a3cca0
+2021/03/14-00:27:20.848971 7fe5c854fa80 Options.max_file_opening_threads: 16
+2021/03/14-00:27:20.848972 7fe5c854fa80 Options.statistics: (nil)
+2021/03/14-00:27:20.848973 7fe5c854fa80 Options.use_fsync: 0
+2021/03/14-00:27:20.848973 7fe5c854fa80 Options.max_log_file_size: 0
+2021/03/14-00:27:20.848974 7fe5c854fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:27:20.848975 7fe5c854fa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:27:20.848975 7fe5c854fa80 Options.keep_log_file_num: 1000
+2021/03/14-00:27:20.848976 7fe5c854fa80 Options.recycle_log_file_num: 0
+2021/03/14-00:27:20.848977 7fe5c854fa80 Options.allow_fallocate: 1
+2021/03/14-00:27:20.848977 7fe5c854fa80 Options.allow_mmap_reads: 0
+2021/03/14-00:27:20.848978 7fe5c854fa80 Options.allow_mmap_writes: 0
+2021/03/14-00:27:20.848978 7fe5c854fa80 Options.use_direct_reads: 0
+2021/03/14-00:27:20.848979 7fe5c854fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:27:20.848980 7fe5c854fa80 Options.create_missing_column_families: 0
+2021/03/14-00:27:20.848980 7fe5c854fa80 Options.db_log_dir:
+2021/03/14-00:27:20.848981 7fe5c854fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:27:20.848982 7fe5c854fa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:27:20.848982 7fe5c854fa80 Options.max_subcompactions: 1
+2021/03/14-00:27:20.848983 7fe5c854fa80 Options.max_background_flushes: -1
+2021/03/14-00:27:20.848984 7fe5c854fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:27:20.848984 7fe5c854fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:27:20.848985 7fe5c854fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:27:20.848985 7fe5c854fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:27:20.848986 7fe5c854fa80 Options.advise_random_on_open: 1
+2021/03/14-00:27:20.848987 7fe5c854fa80 Options.db_write_buffer_size: 0
+2021/03/14-00:27:20.848987 7fe5c854fa80 Options.write_buffer_manager: 0x1a24b90
+2021/03/14-00:27:20.848988 7fe5c854fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:27:20.848989 7fe5c854fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:27:20.848989 7fe5c854fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:27:20.848990 7fe5c854fa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:27:20.848990 7fe5c854fa80 Options.rate_limiter: (nil)
+2021/03/14-00:27:20.848993 7fe5c854fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:27:20.849005 7fe5c854fa80 Options.wal_recovery_mode: 2
+2021/03/14-00:27:20.849006 7fe5c854fa80 Options.enable_thread_tracking: 0
+2021/03/14-00:27:20.849007 7fe5c854fa80 Options.enable_pipelined_write: 0
+2021/03/14-00:27:20.849007 7fe5c854fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:27:20.849008 7fe5c854fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:27:20.849009 7fe5c854fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:27:20.849009 7fe5c854fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:27:20.849010 7fe5c854fa80 Options.row_cache: None
+2021/03/14-00:27:20.849011 7fe5c854fa80 Options.wal_filter: None
+2021/03/14-00:27:20.849011 7fe5c854fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:27:20.849012 7fe5c854fa80 Options.allow_ingest_behind: 0
+2021/03/14-00:27:20.849012 7fe5c854fa80 Options.preserve_deletes: 0
+2021/03/14-00:27:20.849013 7fe5c854fa80 Options.two_write_queues: 0
+2021/03/14-00:27:20.849014 7fe5c854fa80 Options.manual_wal_flush: 0
+2021/03/14-00:27:20.849015 7fe5c854fa80 Options.max_background_jobs: 16
+2021/03/14-00:27:20.849016 7fe5c854fa80 Options.max_background_compactions: -1
+2021/03/14-00:27:20.849016 7fe5c854fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:27:20.849017 7fe5c854fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:27:20.849018 7fe5c854fa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:27:20.849018 7fe5c854fa80 Options.max_total_wal_size: 0
+2021/03/14-00:27:20.849019 7fe5c854fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:27:20.849020 7fe5c854fa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:27:20.849020 7fe5c854fa80 Options.max_open_files: -1
+2021/03/14-00:27:20.849021 7fe5c854fa80 Options.bytes_per_sync: 0
+2021/03/14-00:27:20.849022 7fe5c854fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:27:20.849022 7fe5c854fa80 Options.compaction_readahead_size: 0
+2021/03/14-00:27:20.849023 7fe5c854fa80 Compression algorithms supported:
+2021/03/14-00:27:20.849024 7fe5c854fa80 Snappy supported: 1
+2021/03/14-00:27:20.849024 7fe5c854fa80 Zlib supported: 1
+2021/03/14-00:27:20.849025 7fe5c854fa80 Bzip supported: 1
+2021/03/14-00:27:20.849026 7fe5c854fa80 LZ4 supported: 1
+2021/03/14-00:27:20.849026 7fe5c854fa80 ZSTDNotFinal supported: 1
+2021/03/14-00:27:20.849033 7fe5c854fa80 ZSTD supported: 1
+2021/03/14-00:27:20.849038 7fe5c854fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:27:20.849040 7fe5c854fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:27:20.849197 7fe5c854fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:27:20.849273 7fe5c854fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:27:20.849275 7fe5c854fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:27:20.849276 7fe5c854fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:27:20.849277 7fe5c854fa80 Options.compaction_filter: None
+2021/03/14-00:27:20.849277 7fe5c854fa80 Options.compaction_filter_factory: None
+2021/03/14-00:27:20.849278 7fe5c854fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:27:20.849279 7fe5c854fa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:27:20.849297 7fe5c854fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1a34520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1a19c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:27:20.849298 7fe5c854fa80 Options.write_buffer_size: 134217728
+2021/03/14-00:27:20.849298 7fe5c854fa80 Options.max_write_buffer_number: 6
+2021/03/14-00:27:20.849299 7fe5c854fa80 Options.compression[0]: NoCompression
+2021/03/14-00:27:20.849300 7fe5c854fa80 Options.compression[1]: NoCompression
+2021/03/14-00:27:20.849301 7fe5c854fa80 Options.compression[2]: Snappy
+2021/03/14-00:27:20.849301 7fe5c854fa80 Options.compression[3]: Snappy
+2021/03/14-00:27:20.849302 7fe5c854fa80 Options.compression[4]: Snappy
+2021/03/14-00:27:20.849303 7fe5c854fa80 Options.compression[5]: Snappy
+2021/03/14-00:27:20.849303 7fe5c854fa80 Options.compression[6]: Snappy
+2021/03/14-00:27:20.849304 7fe5c854fa80 Options.bottommost_compression: Disabled
+2021/03/14-00:27:20.849305 7fe5c854fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:27:20.849306 7fe5c854fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:27:20.849306 7fe5c854fa80 Options.num_levels: 7
+2021/03/14-00:27:20.849307 7fe5c854fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:27:20.849307 7fe5c854fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:27:20.849308 7fe5c854fa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:27:20.849309 7fe5c854fa80 Options.compression_opts.level: -1
+2021/03/14-00:27:20.849310 7fe5c854fa80 Options.compression_opts.strategy: 0
+2021/03/14-00:27:20.849310 7fe5c854fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:27:20.849311 7fe5c854fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:27:20.849311 7fe5c854fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:27:20.849312 7fe5c854fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:27:20.849313 7fe5c854fa80 Options.target_file_size_base: 67108864
+2021/03/14-00:27:20.849314 7fe5c854fa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:27:20.849315 7fe5c854fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:27:20.849315 7fe5c854fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:27:20.849316 7fe5c854fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:27:20.849318 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:27:20.849328 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:27:20.849329 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:27:20.849329 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:27:20.849330 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:27:20.849330 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:27:20.849331 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:27:20.849332 7fe5c854fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:27:20.849332 7fe5c854fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:27:20.849333 7fe5c854fa80 Options.arena_block_size: 16777216
+2021/03/14-00:27:20.849334 7fe5c854fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:27:20.849334 7fe5c854fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:27:20.849335 7fe5c854fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:27:20.849336 7fe5c854fa80 Options.disable_auto_compactions: 0
+2021/03/14-00:27:20.849338 7fe5c854fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:27:20.849339 7fe5c854fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:27:20.849339 7fe5c854fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:27:20.849340 7fe5c854fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:27:20.849340 7fe5c854fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:27:20.849341 7fe5c854fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:27:20.849342 7fe5c854fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:27:20.849343 7fe5c854fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:27:20.849343 7fe5c854fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:27:20.849344 7fe5c854fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:27:20.849345 7fe5c854fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:27:20.849345 7fe5c854fa80 Options.table_properties_collectors:
+2021/03/14-00:27:20.849346 7fe5c854fa80 Options.inplace_update_support: 0
+2021/03/14-00:27:20.849347 7fe5c854fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:27:20.849347 7fe5c854fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:27:20.849348 7fe5c854fa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:27:20.849349 7fe5c854fa80 Options.bloom_locality: 0
+2021/03/14-00:27:20.849349 7fe5c854fa80 Options.max_successive_merges: 0
+2021/03/14-00:27:20.849350 7fe5c854fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:27:20.849351 7fe5c854fa80 Options.paranoid_file_checks: 0
+2021/03/14-00:27:20.849351 7fe5c854fa80 Options.force_consistency_checks: 0
+2021/03/14-00:27:20.849352 7fe5c854fa80 Options.report_bg_io_stats: 0
+2021/03/14-00:27:20.849849 7fe5c854fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:27:20.849852 7fe5c854fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:27:20.849984 7fe5c854fa80 EVENT_LOG_v1 {"time_micros": 1615678040849970, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:27:20.849993 7fe5c854fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:27:21.557606 7fe5c854fa80 EVENT_LOG_v1 {"time_micros": 1615678041557603, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678042288915 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678042288915
new file mode 100644
index 0000000..c015cac
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678042288915
@@ -0,0 +1,186 @@
+2021/03/14-00:27:21.569683 7fe5c854fa80 RocksDB version: 5.11.3
+2021/03/14-00:27:21.569737 7fe5c854fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:27:21.569739 7fe5c854fa80 Compile date Mar 13 2021
+2021/03/14-00:27:21.569741 7fe5c854fa80 DB SUMMARY
+2021/03/14-00:27:21.569821 7fe5c854fa80 CURRENT file: CURRENT
+2021/03/14-00:27:21.569821 7fe5c854fa80 IDENTITY file: IDENTITY
+2021/03/14-00:27:21.569829 7fe5c854fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:27:21.569830 7fe5c854fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:27:21.569831 7fe5c854fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:27:21.569835 7fe5c854fa80 Options.error_if_exists: 0
+2021/03/14-00:27:21.569836 7fe5c854fa80 Options.create_if_missing: 1
+2021/03/14-00:27:21.569837 7fe5c854fa80 Options.paranoid_checks: 1
+2021/03/14-00:27:21.569837 7fe5c854fa80 Options.env: 0x7fe5c8f09080
+2021/03/14-00:27:21.569838 7fe5c854fa80 Options.info_log: 0x1a3cca0
+2021/03/14-00:27:21.569838 7fe5c854fa80 Options.max_file_opening_threads: 16
+2021/03/14-00:27:21.569839 7fe5c854fa80 Options.statistics: (nil)
+2021/03/14-00:27:21.569840 7fe5c854fa80 Options.use_fsync: 0
+2021/03/14-00:27:21.569840 7fe5c854fa80 Options.max_log_file_size: 0
+2021/03/14-00:27:21.569841 7fe5c854fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:27:21.569841 7fe5c854fa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:27:21.569842 7fe5c854fa80 Options.keep_log_file_num: 1000
+2021/03/14-00:27:21.569842 7fe5c854fa80 Options.recycle_log_file_num: 0
+2021/03/14-00:27:21.569843 7fe5c854fa80 Options.allow_fallocate: 1
+2021/03/14-00:27:21.569844 7fe5c854fa80 Options.allow_mmap_reads: 0
+2021/03/14-00:27:21.569844 7fe5c854fa80 Options.allow_mmap_writes: 0
+2021/03/14-00:27:21.569845 7fe5c854fa80 Options.use_direct_reads: 0
+2021/03/14-00:27:21.569845 7fe5c854fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:27:21.569846 7fe5c854fa80 Options.create_missing_column_families: 0
+2021/03/14-00:27:21.569846 7fe5c854fa80 Options.db_log_dir:
+2021/03/14-00:27:21.569847 7fe5c854fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:27:21.569847 7fe5c854fa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:27:21.569848 7fe5c854fa80 Options.max_subcompactions: 1
+2021/03/14-00:27:21.569849 7fe5c854fa80 Options.max_background_flushes: -1
+2021/03/14-00:27:21.569849 7fe5c854fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:27:21.569850 7fe5c854fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:27:21.569850 7fe5c854fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:27:21.569851 7fe5c854fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:27:21.569851 7fe5c854fa80 Options.advise_random_on_open: 1
+2021/03/14-00:27:21.569852 7fe5c854fa80 Options.db_write_buffer_size: 0
+2021/03/14-00:27:21.569853 7fe5c854fa80 Options.write_buffer_manager: 0x1a24b90
+2021/03/14-00:27:21.569853 7fe5c854fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:27:21.569854 7fe5c854fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:27:21.569854 7fe5c854fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:27:21.569855 7fe5c854fa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:27:21.569855 7fe5c854fa80 Options.rate_limiter: (nil)
+2021/03/14-00:27:21.569857 7fe5c854fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:27:21.569864 7fe5c854fa80 Options.wal_recovery_mode: 2
+2021/03/14-00:27:21.569865 7fe5c854fa80 Options.enable_thread_tracking: 0
+2021/03/14-00:27:21.569865 7fe5c854fa80 Options.enable_pipelined_write: 0
+2021/03/14-00:27:21.569866 7fe5c854fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:27:21.569866 7fe5c854fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:27:21.569867 7fe5c854fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:27:21.569867 7fe5c854fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:27:21.569868 7fe5c854fa80 Options.row_cache: None
+2021/03/14-00:27:21.569868 7fe5c854fa80 Options.wal_filter: None
+2021/03/14-00:27:21.569869 7fe5c854fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:27:21.569870 7fe5c854fa80 Options.allow_ingest_behind: 0
+2021/03/14-00:27:21.569870 7fe5c854fa80 Options.preserve_deletes: 0
+2021/03/14-00:27:21.569871 7fe5c854fa80 Options.two_write_queues: 0
+2021/03/14-00:27:21.569871 7fe5c854fa80 Options.manual_wal_flush: 0
+2021/03/14-00:27:21.569872 7fe5c854fa80 Options.max_background_jobs: 16
+2021/03/14-00:27:21.569873 7fe5c854fa80 Options.max_background_compactions: -1
+2021/03/14-00:27:21.569874 7fe5c854fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:27:21.569874 7fe5c854fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:27:21.569875 7fe5c854fa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:27:21.569875 7fe5c854fa80 Options.max_total_wal_size: 0
+2021/03/14-00:27:21.569876 7fe5c854fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:27:21.569876 7fe5c854fa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:27:21.569877 7fe5c854fa80 Options.max_open_files: -1
+2021/03/14-00:27:21.569877 7fe5c854fa80 Options.bytes_per_sync: 0
+2021/03/14-00:27:21.569878 7fe5c854fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:27:21.569878 7fe5c854fa80 Options.compaction_readahead_size: 0
+2021/03/14-00:27:21.569879 7fe5c854fa80 Compression algorithms supported:
+2021/03/14-00:27:21.569880 7fe5c854fa80 Snappy supported: 1
+2021/03/14-00:27:21.569880 7fe5c854fa80 Zlib supported: 1
+2021/03/14-00:27:21.569881 7fe5c854fa80 Bzip supported: 1
+2021/03/14-00:27:21.569881 7fe5c854fa80 LZ4 supported: 1
+2021/03/14-00:27:21.569882 7fe5c854fa80 ZSTDNotFinal supported: 1
+2021/03/14-00:27:21.569885 7fe5c854fa80 ZSTD supported: 1
+2021/03/14-00:27:21.569889 7fe5c854fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:27:21.569890 7fe5c854fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:27:21.569976 7fe5c854fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:27:21.570027 7fe5c854fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:27:21.570029 7fe5c854fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:27:21.570030 7fe5c854fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:27:21.570030 7fe5c854fa80 Options.compaction_filter: None
+2021/03/14-00:27:21.570031 7fe5c854fa80 Options.compaction_filter_factory: None
+2021/03/14-00:27:21.570031 7fe5c854fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:27:21.570032 7fe5c854fa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:27:21.570046 7fe5c854fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1a34520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1a19c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:27:21.570047 7fe5c854fa80 Options.write_buffer_size: 134217728
+2021/03/14-00:27:21.570048 7fe5c854fa80 Options.max_write_buffer_number: 6
+2021/03/14-00:27:21.570049 7fe5c854fa80 Options.compression[0]: NoCompression
+2021/03/14-00:27:21.570049 7fe5c854fa80 Options.compression[1]: NoCompression
+2021/03/14-00:27:21.570050 7fe5c854fa80 Options.compression[2]: Snappy
+2021/03/14-00:27:21.570050 7fe5c854fa80 Options.compression[3]: Snappy
+2021/03/14-00:27:21.570051 7fe5c854fa80 Options.compression[4]: Snappy
+2021/03/14-00:27:21.570052 7fe5c854fa80 Options.compression[5]: Snappy
+2021/03/14-00:27:21.570052 7fe5c854fa80 Options.compression[6]: Snappy
+2021/03/14-00:27:21.570053 7fe5c854fa80 Options.bottommost_compression: Disabled
+2021/03/14-00:27:21.570053 7fe5c854fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:27:21.570054 7fe5c854fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:27:21.570055 7fe5c854fa80 Options.num_levels: 7
+2021/03/14-00:27:21.570055 7fe5c854fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:27:21.570056 7fe5c854fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:27:21.570056 7fe5c854fa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:27:21.570057 7fe5c854fa80 Options.compression_opts.level: -1
+2021/03/14-00:27:21.570057 7fe5c854fa80 Options.compression_opts.strategy: 0
+2021/03/14-00:27:21.570058 7fe5c854fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:27:21.570058 7fe5c854fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:27:21.570059 7fe5c854fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:27:21.570059 7fe5c854fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:27:21.570060 7fe5c854fa80 Options.target_file_size_base: 67108864
+2021/03/14-00:27:21.570061 7fe5c854fa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:27:21.570061 7fe5c854fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:27:21.570062 7fe5c854fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:27:21.570062 7fe5c854fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:27:21.570064 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:27:21.570071 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:27:21.570072 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:27:21.570072 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:27:21.570073 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:27:21.570073 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:27:21.570074 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:27:21.570075 7fe5c854fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:27:21.570075 7fe5c854fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:27:21.570076 7fe5c854fa80 Options.arena_block_size: 16777216
+2021/03/14-00:27:21.570076 7fe5c854fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:27:21.570077 7fe5c854fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:27:21.570077 7fe5c854fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:27:21.570078 7fe5c854fa80 Options.disable_auto_compactions: 0
+2021/03/14-00:27:21.570079 7fe5c854fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:27:21.570080 7fe5c854fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:27:21.570081 7fe5c854fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:27:21.570081 7fe5c854fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:27:21.570082 7fe5c854fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:27:21.570082 7fe5c854fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:27:21.570083 7fe5c854fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:27:21.570084 7fe5c854fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:27:21.570084 7fe5c854fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:27:21.570085 7fe5c854fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:27:21.570085 7fe5c854fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:27:21.570086 7fe5c854fa80 Options.table_properties_collectors:
+2021/03/14-00:27:21.570087 7fe5c854fa80 Options.inplace_update_support: 0
+2021/03/14-00:27:21.570087 7fe5c854fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:27:21.570088 7fe5c854fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:27:21.570089 7fe5c854fa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:27:21.570089 7fe5c854fa80 Options.bloom_locality: 0
+2021/03/14-00:27:21.570090 7fe5c854fa80 Options.max_successive_merges: 0
+2021/03/14-00:27:21.570090 7fe5c854fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:27:21.570091 7fe5c854fa80 Options.paranoid_file_checks: 0
+2021/03/14-00:27:21.570091 7fe5c854fa80 Options.force_consistency_checks: 0
+2021/03/14-00:27:21.570092 7fe5c854fa80 Options.report_bg_io_stats: 0
+2021/03/14-00:27:21.570482 7fe5c854fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:27:21.570485 7fe5c854fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:27:21.570581 7fe5c854fa80 EVENT_LOG_v1 {"time_micros": 1615678041570572, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:27:21.570586 7fe5c854fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:27:22.277079 7fe5c854fa80 EVENT_LOG_v1 {"time_micros": 1615678042277075, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678043000496 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678043000496
new file mode 100644
index 0000000..d4ce17a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678043000496
@@ -0,0 +1,186 @@
+2021/03/14-00:27:22.289311 7fe5c854fa80 RocksDB version: 5.11.3
+2021/03/14-00:27:22.289365 7fe5c854fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:27:22.289367 7fe5c854fa80 Compile date Mar 13 2021
+2021/03/14-00:27:22.289369 7fe5c854fa80 DB SUMMARY
+2021/03/14-00:27:22.289448 7fe5c854fa80 CURRENT file: CURRENT
+2021/03/14-00:27:22.289449 7fe5c854fa80 IDENTITY file: IDENTITY
+2021/03/14-00:27:22.289457 7fe5c854fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:27:22.289458 7fe5c854fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:27:22.289459 7fe5c854fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:27:22.289464 7fe5c854fa80 Options.error_if_exists: 0
+2021/03/14-00:27:22.289464 7fe5c854fa80 Options.create_if_missing: 1
+2021/03/14-00:27:22.289465 7fe5c854fa80 Options.paranoid_checks: 1
+2021/03/14-00:27:22.289465 7fe5c854fa80 Options.env: 0x7fe5c8f09080
+2021/03/14-00:27:22.289466 7fe5c854fa80 Options.info_log: 0x1a3cca0
+2021/03/14-00:27:22.289467 7fe5c854fa80 Options.max_file_opening_threads: 16
+2021/03/14-00:27:22.289467 7fe5c854fa80 Options.statistics: (nil)
+2021/03/14-00:27:22.289468 7fe5c854fa80 Options.use_fsync: 0
+2021/03/14-00:27:22.289468 7fe5c854fa80 Options.max_log_file_size: 0
+2021/03/14-00:27:22.289469 7fe5c854fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:27:22.289470 7fe5c854fa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:27:22.289470 7fe5c854fa80 Options.keep_log_file_num: 1000
+2021/03/14-00:27:22.289471 7fe5c854fa80 Options.recycle_log_file_num: 0
+2021/03/14-00:27:22.289471 7fe5c854fa80 Options.allow_fallocate: 1
+2021/03/14-00:27:22.289472 7fe5c854fa80 Options.allow_mmap_reads: 0
+2021/03/14-00:27:22.289472 7fe5c854fa80 Options.allow_mmap_writes: 0
+2021/03/14-00:27:22.289473 7fe5c854fa80 Options.use_direct_reads: 0
+2021/03/14-00:27:22.289474 7fe5c854fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:27:22.289474 7fe5c854fa80 Options.create_missing_column_families: 0
+2021/03/14-00:27:22.289475 7fe5c854fa80 Options.db_log_dir:
+2021/03/14-00:27:22.289475 7fe5c854fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:27:22.289476 7fe5c854fa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:27:22.289476 7fe5c854fa80 Options.max_subcompactions: 1
+2021/03/14-00:27:22.289477 7fe5c854fa80 Options.max_background_flushes: -1
+2021/03/14-00:27:22.289477 7fe5c854fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:27:22.289478 7fe5c854fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:27:22.289479 7fe5c854fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:27:22.289479 7fe5c854fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:27:22.289480 7fe5c854fa80 Options.advise_random_on_open: 1
+2021/03/14-00:27:22.289480 7fe5c854fa80 Options.db_write_buffer_size: 0
+2021/03/14-00:27:22.289481 7fe5c854fa80 Options.write_buffer_manager: 0x1a24b90
+2021/03/14-00:27:22.289481 7fe5c854fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:27:22.289482 7fe5c854fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:27:22.289482 7fe5c854fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:27:22.289483 7fe5c854fa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:27:22.289483 7fe5c854fa80 Options.rate_limiter: (nil)
+2021/03/14-00:27:22.289485 7fe5c854fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:27:22.289492 7fe5c854fa80 Options.wal_recovery_mode: 2
+2021/03/14-00:27:22.289493 7fe5c854fa80 Options.enable_thread_tracking: 0
+2021/03/14-00:27:22.289493 7fe5c854fa80 Options.enable_pipelined_write: 0
+2021/03/14-00:27:22.289494 7fe5c854fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:27:22.289494 7fe5c854fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:27:22.289495 7fe5c854fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:27:22.289495 7fe5c854fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:27:22.289496 7fe5c854fa80 Options.row_cache: None
+2021/03/14-00:27:22.289496 7fe5c854fa80 Options.wal_filter: None
+2021/03/14-00:27:22.289497 7fe5c854fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:27:22.289498 7fe5c854fa80 Options.allow_ingest_behind: 0
+2021/03/14-00:27:22.289498 7fe5c854fa80 Options.preserve_deletes: 0
+2021/03/14-00:27:22.289499 7fe5c854fa80 Options.two_write_queues: 0
+2021/03/14-00:27:22.289499 7fe5c854fa80 Options.manual_wal_flush: 0
+2021/03/14-00:27:22.289500 7fe5c854fa80 Options.max_background_jobs: 16
+2021/03/14-00:27:22.289501 7fe5c854fa80 Options.max_background_compactions: -1
+2021/03/14-00:27:22.289502 7fe5c854fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:27:22.289502 7fe5c854fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:27:22.289503 7fe5c854fa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:27:22.289503 7fe5c854fa80 Options.max_total_wal_size: 0
+2021/03/14-00:27:22.289504 7fe5c854fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:27:22.289504 7fe5c854fa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:27:22.289505 7fe5c854fa80 Options.max_open_files: -1
+2021/03/14-00:27:22.289505 7fe5c854fa80 Options.bytes_per_sync: 0
+2021/03/14-00:27:22.289506 7fe5c854fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:27:22.289507 7fe5c854fa80 Options.compaction_readahead_size: 0
+2021/03/14-00:27:22.289507 7fe5c854fa80 Compression algorithms supported:
+2021/03/14-00:27:22.289508 7fe5c854fa80 Snappy supported: 1
+2021/03/14-00:27:22.289508 7fe5c854fa80 Zlib supported: 1
+2021/03/14-00:27:22.289509 7fe5c854fa80 Bzip supported: 1
+2021/03/14-00:27:22.289509 7fe5c854fa80 LZ4 supported: 1
+2021/03/14-00:27:22.289510 7fe5c854fa80 ZSTDNotFinal supported: 1
+2021/03/14-00:27:22.289514 7fe5c854fa80 ZSTD supported: 1
+2021/03/14-00:27:22.289517 7fe5c854fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:27:22.289518 7fe5c854fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:27:22.289605 7fe5c854fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:27:22.289656 7fe5c854fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:27:22.289658 7fe5c854fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:27:22.289659 7fe5c854fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:27:22.289659 7fe5c854fa80 Options.compaction_filter: None
+2021/03/14-00:27:22.289660 7fe5c854fa80 Options.compaction_filter_factory: None
+2021/03/14-00:27:22.289660 7fe5c854fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:27:22.289661 7fe5c854fa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:27:22.289676 7fe5c854fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1a34520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1a19c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:27:22.289676 7fe5c854fa80 Options.write_buffer_size: 134217728
+2021/03/14-00:27:22.289677 7fe5c854fa80 Options.max_write_buffer_number: 6
+2021/03/14-00:27:22.289678 7fe5c854fa80 Options.compression[0]: NoCompression
+2021/03/14-00:27:22.289678 7fe5c854fa80 Options.compression[1]: NoCompression
+2021/03/14-00:27:22.289679 7fe5c854fa80 Options.compression[2]: Snappy
+2021/03/14-00:27:22.289680 7fe5c854fa80 Options.compression[3]: Snappy
+2021/03/14-00:27:22.289680 7fe5c854fa80 Options.compression[4]: Snappy
+2021/03/14-00:27:22.289681 7fe5c854fa80 Options.compression[5]: Snappy
+2021/03/14-00:27:22.289681 7fe5c854fa80 Options.compression[6]: Snappy
+2021/03/14-00:27:22.289682 7fe5c854fa80 Options.bottommost_compression: Disabled
+2021/03/14-00:27:22.289683 7fe5c854fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:27:22.289683 7fe5c854fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:27:22.289684 7fe5c854fa80 Options.num_levels: 7
+2021/03/14-00:27:22.289684 7fe5c854fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:27:22.289685 7fe5c854fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:27:22.289686 7fe5c854fa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:27:22.289686 7fe5c854fa80 Options.compression_opts.level: -1
+2021/03/14-00:27:22.289687 7fe5c854fa80 Options.compression_opts.strategy: 0
+2021/03/14-00:27:22.289687 7fe5c854fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:27:22.289688 7fe5c854fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:27:22.289688 7fe5c854fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:27:22.289689 7fe5c854fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:27:22.289690 7fe5c854fa80 Options.target_file_size_base: 67108864
+2021/03/14-00:27:22.289690 7fe5c854fa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:27:22.289691 7fe5c854fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:27:22.289691 7fe5c854fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:27:22.289692 7fe5c854fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:27:22.289693 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:27:22.289701 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:27:22.289701 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:27:22.289702 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:27:22.289702 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:27:22.289703 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:27:22.289704 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:27:22.289704 7fe5c854fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:27:22.289705 7fe5c854fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:27:22.289705 7fe5c854fa80 Options.arena_block_size: 16777216
+2021/03/14-00:27:22.289706 7fe5c854fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:27:22.289706 7fe5c854fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:27:22.289707 7fe5c854fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:27:22.289707 7fe5c854fa80 Options.disable_auto_compactions: 0
+2021/03/14-00:27:22.289709 7fe5c854fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:27:22.289710 7fe5c854fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:27:22.289710 7fe5c854fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:27:22.289711 7fe5c854fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:27:22.289711 7fe5c854fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:27:22.289712 7fe5c854fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:27:22.289713 7fe5c854fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:27:22.289713 7fe5c854fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:27:22.289714 7fe5c854fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:27:22.289714 7fe5c854fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:27:22.289715 7fe5c854fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:27:22.289716 7fe5c854fa80 Options.table_properties_collectors:
+2021/03/14-00:27:22.289716 7fe5c854fa80 Options.inplace_update_support: 0
+2021/03/14-00:27:22.289717 7fe5c854fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:27:22.289717 7fe5c854fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:27:22.289718 7fe5c854fa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:27:22.289719 7fe5c854fa80 Options.bloom_locality: 0
+2021/03/14-00:27:22.289719 7fe5c854fa80 Options.max_successive_merges: 0
+2021/03/14-00:27:22.289720 7fe5c854fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:27:22.289720 7fe5c854fa80 Options.paranoid_file_checks: 0
+2021/03/14-00:27:22.289721 7fe5c854fa80 Options.force_consistency_checks: 0
+2021/03/14-00:27:22.289721 7fe5c854fa80 Options.report_bg_io_stats: 0
+2021/03/14-00:27:22.290106 7fe5c854fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:27:22.290109 7fe5c854fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:27:22.290206 7fe5c854fa80 EVENT_LOG_v1 {"time_micros": 1615678042290196, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:27:22.290211 7fe5c854fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:27:22.988542 7fe5c854fa80 EVENT_LOG_v1 {"time_micros": 1615678042988539, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678078504907 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678078504907
new file mode 100644
index 0000000..8645b16
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678078504907
@@ -0,0 +1,186 @@
+2021/03/14-00:27:23.000827 7fe5c854fa80 RocksDB version: 5.11.3
+2021/03/14-00:27:23.000884 7fe5c854fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:27:23.000886 7fe5c854fa80 Compile date Mar 13 2021
+2021/03/14-00:27:23.000888 7fe5c854fa80 DB SUMMARY
+2021/03/14-00:27:23.000969 7fe5c854fa80 CURRENT file: CURRENT
+2021/03/14-00:27:23.000970 7fe5c854fa80 IDENTITY file: IDENTITY
+2021/03/14-00:27:23.000978 7fe5c854fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:27:23.000979 7fe5c854fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:27:23.000980 7fe5c854fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:27:23.000985 7fe5c854fa80 Options.error_if_exists: 0
+2021/03/14-00:27:23.000986 7fe5c854fa80 Options.create_if_missing: 1
+2021/03/14-00:27:23.000986 7fe5c854fa80 Options.paranoid_checks: 1
+2021/03/14-00:27:23.000987 7fe5c854fa80 Options.env: 0x7fe5c8f09080
+2021/03/14-00:27:23.000987 7fe5c854fa80 Options.info_log: 0x1a3cca0
+2021/03/14-00:27:23.000988 7fe5c854fa80 Options.max_file_opening_threads: 16
+2021/03/14-00:27:23.000989 7fe5c854fa80 Options.statistics: (nil)
+2021/03/14-00:27:23.000989 7fe5c854fa80 Options.use_fsync: 0
+2021/03/14-00:27:23.000990 7fe5c854fa80 Options.max_log_file_size: 0
+2021/03/14-00:27:23.000991 7fe5c854fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:27:23.000991 7fe5c854fa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:27:23.000992 7fe5c854fa80 Options.keep_log_file_num: 1000
+2021/03/14-00:27:23.000992 7fe5c854fa80 Options.recycle_log_file_num: 0
+2021/03/14-00:27:23.000993 7fe5c854fa80 Options.allow_fallocate: 1
+2021/03/14-00:27:23.000994 7fe5c854fa80 Options.allow_mmap_reads: 0
+2021/03/14-00:27:23.000994 7fe5c854fa80 Options.allow_mmap_writes: 0
+2021/03/14-00:27:23.000995 7fe5c854fa80 Options.use_direct_reads: 0
+2021/03/14-00:27:23.000995 7fe5c854fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:27:23.000996 7fe5c854fa80 Options.create_missing_column_families: 0
+2021/03/14-00:27:23.000996 7fe5c854fa80 Options.db_log_dir:
+2021/03/14-00:27:23.000997 7fe5c854fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:27:23.000998 7fe5c854fa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:27:23.000998 7fe5c854fa80 Options.max_subcompactions: 1
+2021/03/14-00:27:23.000999 7fe5c854fa80 Options.max_background_flushes: -1
+2021/03/14-00:27:23.000999 7fe5c854fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:27:23.001000 7fe5c854fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:27:23.001001 7fe5c854fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:27:23.001001 7fe5c854fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:27:23.001002 7fe5c854fa80 Options.advise_random_on_open: 1
+2021/03/14-00:27:23.001002 7fe5c854fa80 Options.db_write_buffer_size: 0
+2021/03/14-00:27:23.001003 7fe5c854fa80 Options.write_buffer_manager: 0x1a24b90
+2021/03/14-00:27:23.001004 7fe5c854fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:27:23.001004 7fe5c854fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:27:23.001005 7fe5c854fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:27:23.001005 7fe5c854fa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:27:23.001006 7fe5c854fa80 Options.rate_limiter: (nil)
+2021/03/14-00:27:23.001007 7fe5c854fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:27:23.001014 7fe5c854fa80 Options.wal_recovery_mode: 2
+2021/03/14-00:27:23.001015 7fe5c854fa80 Options.enable_thread_tracking: 0
+2021/03/14-00:27:23.001016 7fe5c854fa80 Options.enable_pipelined_write: 0
+2021/03/14-00:27:23.001016 7fe5c854fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:27:23.001017 7fe5c854fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:27:23.001017 7fe5c854fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:27:23.001018 7fe5c854fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:27:23.001019 7fe5c854fa80 Options.row_cache: None
+2021/03/14-00:27:23.001019 7fe5c854fa80 Options.wal_filter: None
+2021/03/14-00:27:23.001020 7fe5c854fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:27:23.001020 7fe5c854fa80 Options.allow_ingest_behind: 0
+2021/03/14-00:27:23.001021 7fe5c854fa80 Options.preserve_deletes: 0
+2021/03/14-00:27:23.001021 7fe5c854fa80 Options.two_write_queues: 0
+2021/03/14-00:27:23.001022 7fe5c854fa80 Options.manual_wal_flush: 0
+2021/03/14-00:27:23.001023 7fe5c854fa80 Options.max_background_jobs: 16
+2021/03/14-00:27:23.001024 7fe5c854fa80 Options.max_background_compactions: -1
+2021/03/14-00:27:23.001024 7fe5c854fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:27:23.001025 7fe5c854fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:27:23.001025 7fe5c854fa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:27:23.001026 7fe5c854fa80 Options.max_total_wal_size: 0
+2021/03/14-00:27:23.001027 7fe5c854fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:27:23.001027 7fe5c854fa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:27:23.001028 7fe5c854fa80 Options.max_open_files: -1
+2021/03/14-00:27:23.001028 7fe5c854fa80 Options.bytes_per_sync: 0
+2021/03/14-00:27:23.001029 7fe5c854fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:27:23.001029 7fe5c854fa80 Options.compaction_readahead_size: 0
+2021/03/14-00:27:23.001030 7fe5c854fa80 Compression algorithms supported:
+2021/03/14-00:27:23.001031 7fe5c854fa80 Snappy supported: 1
+2021/03/14-00:27:23.001031 7fe5c854fa80 Zlib supported: 1
+2021/03/14-00:27:23.001032 7fe5c854fa80 Bzip supported: 1
+2021/03/14-00:27:23.001032 7fe5c854fa80 LZ4 supported: 1
+2021/03/14-00:27:23.001033 7fe5c854fa80 ZSTDNotFinal supported: 1
+2021/03/14-00:27:23.001037 7fe5c854fa80 ZSTD supported: 1
+2021/03/14-00:27:23.001040 7fe5c854fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:27:23.001041 7fe5c854fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:27:23.001129 7fe5c854fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:27:23.001182 7fe5c854fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:27:23.001183 7fe5c854fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:27:23.001184 7fe5c854fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:27:23.001185 7fe5c854fa80 Options.compaction_filter: None
+2021/03/14-00:27:23.001185 7fe5c854fa80 Options.compaction_filter_factory: None
+2021/03/14-00:27:23.001186 7fe5c854fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:27:23.001187 7fe5c854fa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:27:23.001201 7fe5c854fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1a34520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1a19c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:27:23.001202 7fe5c854fa80 Options.write_buffer_size: 134217728
+2021/03/14-00:27:23.001203 7fe5c854fa80 Options.max_write_buffer_number: 6
+2021/03/14-00:27:23.001203 7fe5c854fa80 Options.compression[0]: NoCompression
+2021/03/14-00:27:23.001204 7fe5c854fa80 Options.compression[1]: NoCompression
+2021/03/14-00:27:23.001205 7fe5c854fa80 Options.compression[2]: Snappy
+2021/03/14-00:27:23.001205 7fe5c854fa80 Options.compression[3]: Snappy
+2021/03/14-00:27:23.001206 7fe5c854fa80 Options.compression[4]: Snappy
+2021/03/14-00:27:23.001207 7fe5c854fa80 Options.compression[5]: Snappy
+2021/03/14-00:27:23.001207 7fe5c854fa80 Options.compression[6]: Snappy
+2021/03/14-00:27:23.001208 7fe5c854fa80 Options.bottommost_compression: Disabled
+2021/03/14-00:27:23.001208 7fe5c854fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:27:23.001209 7fe5c854fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:27:23.001210 7fe5c854fa80 Options.num_levels: 7
+2021/03/14-00:27:23.001210 7fe5c854fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:27:23.001211 7fe5c854fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:27:23.001211 7fe5c854fa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:27:23.001212 7fe5c854fa80 Options.compression_opts.level: -1
+2021/03/14-00:27:23.001213 7fe5c854fa80 Options.compression_opts.strategy: 0
+2021/03/14-00:27:23.001213 7fe5c854fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:27:23.001214 7fe5c854fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:27:23.001214 7fe5c854fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:27:23.001215 7fe5c854fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:27:23.001216 7fe5c854fa80 Options.target_file_size_base: 67108864
+2021/03/14-00:27:23.001216 7fe5c854fa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:27:23.001217 7fe5c854fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:27:23.001217 7fe5c854fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:27:23.001218 7fe5c854fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:27:23.001219 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:27:23.001227 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:27:23.001228 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:27:23.001228 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:27:23.001229 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:27:23.001229 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:27:23.001230 7fe5c854fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:27:23.001230 7fe5c854fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:27:23.001231 7fe5c854fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:27:23.001231 7fe5c854fa80 Options.arena_block_size: 16777216
+2021/03/14-00:27:23.001232 7fe5c854fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:27:23.001233 7fe5c854fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:27:23.001233 7fe5c854fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:27:23.001234 7fe5c854fa80 Options.disable_auto_compactions: 0
+2021/03/14-00:27:23.001236 7fe5c854fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:27:23.001236 7fe5c854fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:27:23.001237 7fe5c854fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:27:23.001246 7fe5c854fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:27:23.001247 7fe5c854fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:27:23.001248 7fe5c854fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:27:23.001249 7fe5c854fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:27:23.001250 7fe5c854fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:27:23.001250 7fe5c854fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:27:23.001251 7fe5c854fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:27:23.001251 7fe5c854fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:27:23.001252 7fe5c854fa80 Options.table_properties_collectors:
+2021/03/14-00:27:23.001252 7fe5c854fa80 Options.inplace_update_support: 0
+2021/03/14-00:27:23.001253 7fe5c854fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:27:23.001254 7fe5c854fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:27:23.001255 7fe5c854fa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:27:23.001255 7fe5c854fa80 Options.bloom_locality: 0
+2021/03/14-00:27:23.001256 7fe5c854fa80 Options.max_successive_merges: 0
+2021/03/14-00:27:23.001256 7fe5c854fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:27:23.001257 7fe5c854fa80 Options.paranoid_file_checks: 0
+2021/03/14-00:27:23.001257 7fe5c854fa80 Options.force_consistency_checks: 0
+2021/03/14-00:27:23.001258 7fe5c854fa80 Options.report_bg_io_stats: 0
+2021/03/14-00:27:23.001758 7fe5c854fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:27:23.001761 7fe5c854fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:27:23.001862 7fe5c854fa80 EVENT_LOG_v1 {"time_micros": 1615678043001851, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:27:23.001867 7fe5c854fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:27:23.695077 7fe5c854fa80 EVENT_LOG_v1 {"time_micros": 1615678043695074, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678079220528 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678079220528
new file mode 100644
index 0000000..28509dc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678079220528
@@ -0,0 +1,186 @@
+2021/03/14-00:27:58.505377 7f9b095efa80 RocksDB version: 5.11.3
+2021/03/14-00:27:58.505459 7f9b095efa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:27:58.505461 7f9b095efa80 Compile date Mar 13 2021
+2021/03/14-00:27:58.505464 7f9b095efa80 DB SUMMARY
+2021/03/14-00:27:58.505563 7f9b095efa80 CURRENT file: CURRENT
+2021/03/14-00:27:58.505564 7f9b095efa80 IDENTITY file: IDENTITY
+2021/03/14-00:27:58.505573 7f9b095efa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:27:58.505574 7f9b095efa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:27:58.505575 7f9b095efa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:27:58.505581 7f9b095efa80 Options.error_if_exists: 0
+2021/03/14-00:27:58.505582 7f9b095efa80 Options.create_if_missing: 1
+2021/03/14-00:27:58.505583 7f9b095efa80 Options.paranoid_checks: 1
+2021/03/14-00:27:58.505583 7f9b095efa80 Options.env: 0x7f9b09fa9080
+2021/03/14-00:27:58.505584 7f9b095efa80 Options.info_log: 0x159cca0
+2021/03/14-00:27:58.505585 7f9b095efa80 Options.max_file_opening_threads: 16
+2021/03/14-00:27:58.505585 7f9b095efa80 Options.statistics: (nil)
+2021/03/14-00:27:58.505586 7f9b095efa80 Options.use_fsync: 0
+2021/03/14-00:27:58.505587 7f9b095efa80 Options.max_log_file_size: 0
+2021/03/14-00:27:58.505588 7f9b095efa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:27:58.505588 7f9b095efa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:27:58.505589 7f9b095efa80 Options.keep_log_file_num: 1000
+2021/03/14-00:27:58.505590 7f9b095efa80 Options.recycle_log_file_num: 0
+2021/03/14-00:27:58.505590 7f9b095efa80 Options.allow_fallocate: 1
+2021/03/14-00:27:58.505591 7f9b095efa80 Options.allow_mmap_reads: 0
+2021/03/14-00:27:58.505592 7f9b095efa80 Options.allow_mmap_writes: 0
+2021/03/14-00:27:58.505592 7f9b095efa80 Options.use_direct_reads: 0
+2021/03/14-00:27:58.505593 7f9b095efa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:27:58.505594 7f9b095efa80 Options.create_missing_column_families: 0
+2021/03/14-00:27:58.505594 7f9b095efa80 Options.db_log_dir:
+2021/03/14-00:27:58.505595 7f9b095efa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:27:58.505596 7f9b095efa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:27:58.505596 7f9b095efa80 Options.max_subcompactions: 1
+2021/03/14-00:27:58.505597 7f9b095efa80 Options.max_background_flushes: -1
+2021/03/14-00:27:58.505598 7f9b095efa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:27:58.505598 7f9b095efa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:27:58.505599 7f9b095efa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:27:58.505600 7f9b095efa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:27:58.505600 7f9b095efa80 Options.advise_random_on_open: 1
+2021/03/14-00:27:58.505601 7f9b095efa80 Options.db_write_buffer_size: 0
+2021/03/14-00:27:58.505602 7f9b095efa80 Options.write_buffer_manager: 0x1584b90
+2021/03/14-00:27:58.505602 7f9b095efa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:27:58.505603 7f9b095efa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:27:58.505604 7f9b095efa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:27:58.505604 7f9b095efa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:27:58.505605 7f9b095efa80 Options.rate_limiter: (nil)
+2021/03/14-00:27:58.505606 7f9b095efa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:27:58.505616 7f9b095efa80 Options.wal_recovery_mode: 2
+2021/03/14-00:27:58.505616 7f9b095efa80 Options.enable_thread_tracking: 0
+2021/03/14-00:27:58.505617 7f9b095efa80 Options.enable_pipelined_write: 0
+2021/03/14-00:27:58.505618 7f9b095efa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:27:58.505618 7f9b095efa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:27:58.505619 7f9b095efa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:27:58.505620 7f9b095efa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:27:58.505620 7f9b095efa80 Options.row_cache: None
+2021/03/14-00:27:58.505621 7f9b095efa80 Options.wal_filter: None
+2021/03/14-00:27:58.505622 7f9b095efa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:27:58.505622 7f9b095efa80 Options.allow_ingest_behind: 0
+2021/03/14-00:27:58.505623 7f9b095efa80 Options.preserve_deletes: 0
+2021/03/14-00:27:58.505624 7f9b095efa80 Options.two_write_queues: 0
+2021/03/14-00:27:58.505624 7f9b095efa80 Options.manual_wal_flush: 0
+2021/03/14-00:27:58.505626 7f9b095efa80 Options.max_background_jobs: 16
+2021/03/14-00:27:58.505626 7f9b095efa80 Options.max_background_compactions: -1
+2021/03/14-00:27:58.505627 7f9b095efa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:27:58.505628 7f9b095efa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:27:58.505628 7f9b095efa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:27:58.505629 7f9b095efa80 Options.max_total_wal_size: 0
+2021/03/14-00:27:58.505630 7f9b095efa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:27:58.505630 7f9b095efa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:27:58.505631 7f9b095efa80 Options.max_open_files: -1
+2021/03/14-00:27:58.505632 7f9b095efa80 Options.bytes_per_sync: 0
+2021/03/14-00:27:58.505632 7f9b095efa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:27:58.505633 7f9b095efa80 Options.compaction_readahead_size: 0
+2021/03/14-00:27:58.505634 7f9b095efa80 Compression algorithms supported:
+2021/03/14-00:27:58.505634 7f9b095efa80 Snappy supported: 1
+2021/03/14-00:27:58.505635 7f9b095efa80 Zlib supported: 1
+2021/03/14-00:27:58.505636 7f9b095efa80 Bzip supported: 1
+2021/03/14-00:27:58.505636 7f9b095efa80 LZ4 supported: 1
+2021/03/14-00:27:58.505637 7f9b095efa80 ZSTDNotFinal supported: 1
+2021/03/14-00:27:58.505642 7f9b095efa80 ZSTD supported: 1
+2021/03/14-00:27:58.505646 7f9b095efa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:27:58.505648 7f9b095efa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:27:58.505773 7f9b095efa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:27:58.505841 7f9b095efa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:27:58.505843 7f9b095efa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:27:58.505844 7f9b095efa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:27:58.505845 7f9b095efa80 Options.compaction_filter: None
+2021/03/14-00:27:58.505845 7f9b095efa80 Options.compaction_filter_factory: None
+2021/03/14-00:27:58.505846 7f9b095efa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:27:58.505847 7f9b095efa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:27:58.505866 7f9b095efa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1594520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1579c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:27:58.505867 7f9b095efa80 Options.write_buffer_size: 134217728
+2021/03/14-00:27:58.505868 7f9b095efa80 Options.max_write_buffer_number: 6
+2021/03/14-00:27:58.505869 7f9b095efa80 Options.compression[0]: NoCompression
+2021/03/14-00:27:58.505870 7f9b095efa80 Options.compression[1]: NoCompression
+2021/03/14-00:27:58.505871 7f9b095efa80 Options.compression[2]: Snappy
+2021/03/14-00:27:58.505871 7f9b095efa80 Options.compression[3]: Snappy
+2021/03/14-00:27:58.505872 7f9b095efa80 Options.compression[4]: Snappy
+2021/03/14-00:27:58.505872 7f9b095efa80 Options.compression[5]: Snappy
+2021/03/14-00:27:58.505873 7f9b095efa80 Options.compression[6]: Snappy
+2021/03/14-00:27:58.505874 7f9b095efa80 Options.bottommost_compression: Disabled
+2021/03/14-00:27:58.505875 7f9b095efa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:27:58.505875 7f9b095efa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:27:58.505876 7f9b095efa80 Options.num_levels: 7
+2021/03/14-00:27:58.505877 7f9b095efa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:27:58.505877 7f9b095efa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:27:58.505878 7f9b095efa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:27:58.505879 7f9b095efa80 Options.compression_opts.level: -1
+2021/03/14-00:27:58.505879 7f9b095efa80 Options.compression_opts.strategy: 0
+2021/03/14-00:27:58.505880 7f9b095efa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:27:58.505881 7f9b095efa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:27:58.505881 7f9b095efa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:27:58.505882 7f9b095efa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:27:58.505883 7f9b095efa80 Options.target_file_size_base: 67108864
+2021/03/14-00:27:58.505883 7f9b095efa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:27:58.505884 7f9b095efa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:27:58.505885 7f9b095efa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:27:58.505885 7f9b095efa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:27:58.505887 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:27:58.505897 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:27:58.505898 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:27:58.505898 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:27:58.505899 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:27:58.505899 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:27:58.505900 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:27:58.505901 7f9b095efa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:27:58.505901 7f9b095efa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:27:58.505902 7f9b095efa80 Options.arena_block_size: 16777216
+2021/03/14-00:27:58.505903 7f9b095efa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:27:58.505903 7f9b095efa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:27:58.505904 7f9b095efa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:27:58.505905 7f9b095efa80 Options.disable_auto_compactions: 0
+2021/03/14-00:27:58.505907 7f9b095efa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:27:58.505908 7f9b095efa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:27:58.505908 7f9b095efa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:27:58.505909 7f9b095efa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:27:58.505910 7f9b095efa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:27:58.505910 7f9b095efa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:27:58.505911 7f9b095efa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:27:58.505912 7f9b095efa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:27:58.505913 7f9b095efa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:27:58.505913 7f9b095efa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:27:58.505914 7f9b095efa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:27:58.505915 7f9b095efa80 Options.table_properties_collectors:
+2021/03/14-00:27:58.505915 7f9b095efa80 Options.inplace_update_support: 0
+2021/03/14-00:27:58.505916 7f9b095efa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:27:58.505917 7f9b095efa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:27:58.505918 7f9b095efa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:27:58.505918 7f9b095efa80 Options.bloom_locality: 0
+2021/03/14-00:27:58.505919 7f9b095efa80 Options.max_successive_merges: 0
+2021/03/14-00:27:58.505919 7f9b095efa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:27:58.505920 7f9b095efa80 Options.paranoid_file_checks: 0
+2021/03/14-00:27:58.505921 7f9b095efa80 Options.force_consistency_checks: 0
+2021/03/14-00:27:58.505921 7f9b095efa80 Options.report_bg_io_stats: 0
+2021/03/14-00:27:58.506496 7f9b095efa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:27:58.506501 7f9b095efa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:27:58.506655 7f9b095efa80 EVENT_LOG_v1 {"time_micros": 1615678078506639, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:27:58.506663 7f9b095efa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:27:59.209004 7f9b095efa80 EVENT_LOG_v1 {"time_micros": 1615678079209000, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678079923144 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678079923144
new file mode 100644
index 0000000..11c83dd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678079923144
@@ -0,0 +1,186 @@
+2021/03/14-00:27:59.220863 7f9b095efa80 RocksDB version: 5.11.3
+2021/03/14-00:27:59.220919 7f9b095efa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:27:59.220920 7f9b095efa80 Compile date Mar 13 2021
+2021/03/14-00:27:59.220923 7f9b095efa80 DB SUMMARY
+2021/03/14-00:27:59.221006 7f9b095efa80 CURRENT file: CURRENT
+2021/03/14-00:27:59.221007 7f9b095efa80 IDENTITY file: IDENTITY
+2021/03/14-00:27:59.221015 7f9b095efa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:27:59.221016 7f9b095efa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:27:59.221017 7f9b095efa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:27:59.221021 7f9b095efa80 Options.error_if_exists: 0
+2021/03/14-00:27:59.221022 7f9b095efa80 Options.create_if_missing: 1
+2021/03/14-00:27:59.221023 7f9b095efa80 Options.paranoid_checks: 1
+2021/03/14-00:27:59.221023 7f9b095efa80 Options.env: 0x7f9b09fa9080
+2021/03/14-00:27:59.221024 7f9b095efa80 Options.info_log: 0x159cca0
+2021/03/14-00:27:59.221025 7f9b095efa80 Options.max_file_opening_threads: 16
+2021/03/14-00:27:59.221025 7f9b095efa80 Options.statistics: (nil)
+2021/03/14-00:27:59.221026 7f9b095efa80 Options.use_fsync: 0
+2021/03/14-00:27:59.221027 7f9b095efa80 Options.max_log_file_size: 0
+2021/03/14-00:27:59.221027 7f9b095efa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:27:59.221028 7f9b095efa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:27:59.221028 7f9b095efa80 Options.keep_log_file_num: 1000
+2021/03/14-00:27:59.221029 7f9b095efa80 Options.recycle_log_file_num: 0
+2021/03/14-00:27:59.221030 7f9b095efa80 Options.allow_fallocate: 1
+2021/03/14-00:27:59.221030 7f9b095efa80 Options.allow_mmap_reads: 0
+2021/03/14-00:27:59.221031 7f9b095efa80 Options.allow_mmap_writes: 0
+2021/03/14-00:27:59.221031 7f9b095efa80 Options.use_direct_reads: 0
+2021/03/14-00:27:59.221032 7f9b095efa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:27:59.221032 7f9b095efa80 Options.create_missing_column_families: 0
+2021/03/14-00:27:59.221033 7f9b095efa80 Options.db_log_dir:
+2021/03/14-00:27:59.221033 7f9b095efa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:27:59.221034 7f9b095efa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:27:59.221034 7f9b095efa80 Options.max_subcompactions: 1
+2021/03/14-00:27:59.221035 7f9b095efa80 Options.max_background_flushes: -1
+2021/03/14-00:27:59.221036 7f9b095efa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:27:59.221036 7f9b095efa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:27:59.221037 7f9b095efa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:27:59.221037 7f9b095efa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:27:59.221038 7f9b095efa80 Options.advise_random_on_open: 1
+2021/03/14-00:27:59.221038 7f9b095efa80 Options.db_write_buffer_size: 0
+2021/03/14-00:27:59.221039 7f9b095efa80 Options.write_buffer_manager: 0x1584b90
+2021/03/14-00:27:59.221040 7f9b095efa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:27:59.221040 7f9b095efa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:27:59.221041 7f9b095efa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:27:59.221041 7f9b095efa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:27:59.221042 7f9b095efa80 Options.rate_limiter: (nil)
+2021/03/14-00:27:59.221043 7f9b095efa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:27:59.221051 7f9b095efa80 Options.wal_recovery_mode: 2
+2021/03/14-00:27:59.221051 7f9b095efa80 Options.enable_thread_tracking: 0
+2021/03/14-00:27:59.221052 7f9b095efa80 Options.enable_pipelined_write: 0
+2021/03/14-00:27:59.221052 7f9b095efa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:27:59.221053 7f9b095efa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:27:59.221053 7f9b095efa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:27:59.221054 7f9b095efa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:27:59.221055 7f9b095efa80 Options.row_cache: None
+2021/03/14-00:27:59.221055 7f9b095efa80 Options.wal_filter: None
+2021/03/14-00:27:59.221056 7f9b095efa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:27:59.221056 7f9b095efa80 Options.allow_ingest_behind: 0
+2021/03/14-00:27:59.221057 7f9b095efa80 Options.preserve_deletes: 0
+2021/03/14-00:27:59.221057 7f9b095efa80 Options.two_write_queues: 0
+2021/03/14-00:27:59.221058 7f9b095efa80 Options.manual_wal_flush: 0
+2021/03/14-00:27:59.221059 7f9b095efa80 Options.max_background_jobs: 16
+2021/03/14-00:27:59.221060 7f9b095efa80 Options.max_background_compactions: -1
+2021/03/14-00:27:59.221060 7f9b095efa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:27:59.221061 7f9b095efa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:27:59.221061 7f9b095efa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:27:59.221062 7f9b095efa80 Options.max_total_wal_size: 0
+2021/03/14-00:27:59.221062 7f9b095efa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:27:59.221063 7f9b095efa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:27:59.221064 7f9b095efa80 Options.max_open_files: -1
+2021/03/14-00:27:59.221064 7f9b095efa80 Options.bytes_per_sync: 0
+2021/03/14-00:27:59.221065 7f9b095efa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:27:59.221065 7f9b095efa80 Options.compaction_readahead_size: 0
+2021/03/14-00:27:59.221066 7f9b095efa80 Compression algorithms supported:
+2021/03/14-00:27:59.221066 7f9b095efa80 Snappy supported: 1
+2021/03/14-00:27:59.221067 7f9b095efa80 Zlib supported: 1
+2021/03/14-00:27:59.221068 7f9b095efa80 Bzip supported: 1
+2021/03/14-00:27:59.221068 7f9b095efa80 LZ4 supported: 1
+2021/03/14-00:27:59.221069 7f9b095efa80 ZSTDNotFinal supported: 1
+2021/03/14-00:27:59.221073 7f9b095efa80 ZSTD supported: 1
+2021/03/14-00:27:59.221076 7f9b095efa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:27:59.221077 7f9b095efa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:27:59.221165 7f9b095efa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:27:59.221217 7f9b095efa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:27:59.221219 7f9b095efa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:27:59.221220 7f9b095efa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:27:59.221220 7f9b095efa80 Options.compaction_filter: None
+2021/03/14-00:27:59.221221 7f9b095efa80 Options.compaction_filter_factory: None
+2021/03/14-00:27:59.221222 7f9b095efa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:27:59.221222 7f9b095efa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:27:59.221237 7f9b095efa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1594520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1579c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:27:59.221243 7f9b095efa80 Options.write_buffer_size: 134217728
+2021/03/14-00:27:59.221244 7f9b095efa80 Options.max_write_buffer_number: 6
+2021/03/14-00:27:59.221245 7f9b095efa80 Options.compression[0]: NoCompression
+2021/03/14-00:27:59.221246 7f9b095efa80 Options.compression[1]: NoCompression
+2021/03/14-00:27:59.221247 7f9b095efa80 Options.compression[2]: Snappy
+2021/03/14-00:27:59.221247 7f9b095efa80 Options.compression[3]: Snappy
+2021/03/14-00:27:59.221248 7f9b095efa80 Options.compression[4]: Snappy
+2021/03/14-00:27:59.221248 7f9b095efa80 Options.compression[5]: Snappy
+2021/03/14-00:27:59.221249 7f9b095efa80 Options.compression[6]: Snappy
+2021/03/14-00:27:59.221249 7f9b095efa80 Options.bottommost_compression: Disabled
+2021/03/14-00:27:59.221250 7f9b095efa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:27:59.221251 7f9b095efa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:27:59.221251 7f9b095efa80 Options.num_levels: 7
+2021/03/14-00:27:59.221252 7f9b095efa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:27:59.221253 7f9b095efa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:27:59.221253 7f9b095efa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:27:59.221254 7f9b095efa80 Options.compression_opts.level: -1
+2021/03/14-00:27:59.221254 7f9b095efa80 Options.compression_opts.strategy: 0
+2021/03/14-00:27:59.221255 7f9b095efa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:27:59.221255 7f9b095efa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:27:59.221256 7f9b095efa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:27:59.221257 7f9b095efa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:27:59.221257 7f9b095efa80 Options.target_file_size_base: 67108864
+2021/03/14-00:27:59.221258 7f9b095efa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:27:59.221258 7f9b095efa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:27:59.221259 7f9b095efa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:27:59.221259 7f9b095efa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:27:59.221261 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:27:59.221270 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:27:59.221270 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:27:59.221271 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:27:59.221271 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:27:59.221272 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:27:59.221273 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:27:59.221273 7f9b095efa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:27:59.221274 7f9b095efa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:27:59.221274 7f9b095efa80 Options.arena_block_size: 16777216
+2021/03/14-00:27:59.221275 7f9b095efa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:27:59.221275 7f9b095efa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:27:59.221276 7f9b095efa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:27:59.221277 7f9b095efa80 Options.disable_auto_compactions: 0
+2021/03/14-00:27:59.221278 7f9b095efa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:27:59.221279 7f9b095efa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:27:59.221280 7f9b095efa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:27:59.221280 7f9b095efa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:27:59.221281 7f9b095efa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:27:59.221281 7f9b095efa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:27:59.221282 7f9b095efa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:27:59.221283 7f9b095efa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:27:59.221283 7f9b095efa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:27:59.221284 7f9b095efa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:27:59.221284 7f9b095efa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:27:59.221285 7f9b095efa80 Options.table_properties_collectors:
+2021/03/14-00:27:59.221286 7f9b095efa80 Options.inplace_update_support: 0
+2021/03/14-00:27:59.221286 7f9b095efa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:27:59.221287 7f9b095efa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:27:59.221288 7f9b095efa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:27:59.221288 7f9b095efa80 Options.bloom_locality: 0
+2021/03/14-00:27:59.221289 7f9b095efa80 Options.max_successive_merges: 0
+2021/03/14-00:27:59.221290 7f9b095efa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:27:59.221290 7f9b095efa80 Options.paranoid_file_checks: 0
+2021/03/14-00:27:59.221291 7f9b095efa80 Options.force_consistency_checks: 0
+2021/03/14-00:27:59.221291 7f9b095efa80 Options.report_bg_io_stats: 0
+2021/03/14-00:27:59.221780 7f9b095efa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:27:59.221783 7f9b095efa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:27:59.221880 7f9b095efa80 EVENT_LOG_v1 {"time_micros": 1615678079221870, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:27:59.221886 7f9b095efa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:27:59.911012 7f9b095efa80 EVENT_LOG_v1 {"time_micros": 1615678079911009, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678080635926 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678080635926
new file mode 100644
index 0000000..a59ae70
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678080635926
@@ -0,0 +1,186 @@
+2021/03/14-00:27:59.923489 7f9b095efa80 RocksDB version: 5.11.3
+2021/03/14-00:27:59.923545 7f9b095efa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:27:59.923547 7f9b095efa80 Compile date Mar 13 2021
+2021/03/14-00:27:59.923549 7f9b095efa80 DB SUMMARY
+2021/03/14-00:27:59.923630 7f9b095efa80 CURRENT file: CURRENT
+2021/03/14-00:27:59.923631 7f9b095efa80 IDENTITY file: IDENTITY
+2021/03/14-00:27:59.923639 7f9b095efa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:27:59.923640 7f9b095efa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:27:59.923641 7f9b095efa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:27:59.923646 7f9b095efa80 Options.error_if_exists: 0
+2021/03/14-00:27:59.923647 7f9b095efa80 Options.create_if_missing: 1
+2021/03/14-00:27:59.923647 7f9b095efa80 Options.paranoid_checks: 1
+2021/03/14-00:27:59.923648 7f9b095efa80 Options.env: 0x7f9b09fa9080
+2021/03/14-00:27:59.923648 7f9b095efa80 Options.info_log: 0x159cca0
+2021/03/14-00:27:59.923649 7f9b095efa80 Options.max_file_opening_threads: 16
+2021/03/14-00:27:59.923649 7f9b095efa80 Options.statistics: (nil)
+2021/03/14-00:27:59.923650 7f9b095efa80 Options.use_fsync: 0
+2021/03/14-00:27:59.923651 7f9b095efa80 Options.max_log_file_size: 0
+2021/03/14-00:27:59.923651 7f9b095efa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:27:59.923652 7f9b095efa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:27:59.923653 7f9b095efa80 Options.keep_log_file_num: 1000
+2021/03/14-00:27:59.923653 7f9b095efa80 Options.recycle_log_file_num: 0
+2021/03/14-00:27:59.923654 7f9b095efa80 Options.allow_fallocate: 1
+2021/03/14-00:27:59.923654 7f9b095efa80 Options.allow_mmap_reads: 0
+2021/03/14-00:27:59.923655 7f9b095efa80 Options.allow_mmap_writes: 0
+2021/03/14-00:27:59.923655 7f9b095efa80 Options.use_direct_reads: 0
+2021/03/14-00:27:59.923656 7f9b095efa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:27:59.923657 7f9b095efa80 Options.create_missing_column_families: 0
+2021/03/14-00:27:59.923657 7f9b095efa80 Options.db_log_dir:
+2021/03/14-00:27:59.923658 7f9b095efa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:27:59.923658 7f9b095efa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:27:59.923659 7f9b095efa80 Options.max_subcompactions: 1
+2021/03/14-00:27:59.923659 7f9b095efa80 Options.max_background_flushes: -1
+2021/03/14-00:27:59.923660 7f9b095efa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:27:59.923661 7f9b095efa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:27:59.923661 7f9b095efa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:27:59.923662 7f9b095efa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:27:59.923662 7f9b095efa80 Options.advise_random_on_open: 1
+2021/03/14-00:27:59.923663 7f9b095efa80 Options.db_write_buffer_size: 0
+2021/03/14-00:27:59.923664 7f9b095efa80 Options.write_buffer_manager: 0x1584b90
+2021/03/14-00:27:59.923664 7f9b095efa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:27:59.923665 7f9b095efa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:27:59.923665 7f9b095efa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:27:59.923666 7f9b095efa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:27:59.923666 7f9b095efa80 Options.rate_limiter: (nil)
+2021/03/14-00:27:59.923668 7f9b095efa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:27:59.923675 7f9b095efa80 Options.wal_recovery_mode: 2
+2021/03/14-00:27:59.923676 7f9b095efa80 Options.enable_thread_tracking: 0
+2021/03/14-00:27:59.923676 7f9b095efa80 Options.enable_pipelined_write: 0
+2021/03/14-00:27:59.923677 7f9b095efa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:27:59.923677 7f9b095efa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:27:59.923678 7f9b095efa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:27:59.923678 7f9b095efa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:27:59.923679 7f9b095efa80 Options.row_cache: None
+2021/03/14-00:27:59.923680 7f9b095efa80 Options.wal_filter: None
+2021/03/14-00:27:59.923680 7f9b095efa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:27:59.923681 7f9b095efa80 Options.allow_ingest_behind: 0
+2021/03/14-00:27:59.923681 7f9b095efa80 Options.preserve_deletes: 0
+2021/03/14-00:27:59.923682 7f9b095efa80 Options.two_write_queues: 0
+2021/03/14-00:27:59.923682 7f9b095efa80 Options.manual_wal_flush: 0
+2021/03/14-00:27:59.923683 7f9b095efa80 Options.max_background_jobs: 16
+2021/03/14-00:27:59.923684 7f9b095efa80 Options.max_background_compactions: -1
+2021/03/14-00:27:59.923685 7f9b095efa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:27:59.923685 7f9b095efa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:27:59.923686 7f9b095efa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:27:59.923686 7f9b095efa80 Options.max_total_wal_size: 0
+2021/03/14-00:27:59.923687 7f9b095efa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:27:59.923688 7f9b095efa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:27:59.923688 7f9b095efa80 Options.max_open_files: -1
+2021/03/14-00:27:59.923689 7f9b095efa80 Options.bytes_per_sync: 0
+2021/03/14-00:27:59.923689 7f9b095efa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:27:59.923690 7f9b095efa80 Options.compaction_readahead_size: 0
+2021/03/14-00:27:59.923690 7f9b095efa80 Compression algorithms supported:
+2021/03/14-00:27:59.923691 7f9b095efa80 Snappy supported: 1
+2021/03/14-00:27:59.923691 7f9b095efa80 Zlib supported: 1
+2021/03/14-00:27:59.923692 7f9b095efa80 Bzip supported: 1
+2021/03/14-00:27:59.923693 7f9b095efa80 LZ4 supported: 1
+2021/03/14-00:27:59.923693 7f9b095efa80 ZSTDNotFinal supported: 1
+2021/03/14-00:27:59.923697 7f9b095efa80 ZSTD supported: 1
+2021/03/14-00:27:59.923700 7f9b095efa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:27:59.923701 7f9b095efa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:27:59.923790 7f9b095efa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:27:59.923844 7f9b095efa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:27:59.923846 7f9b095efa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:27:59.923847 7f9b095efa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:27:59.923847 7f9b095efa80 Options.compaction_filter: None
+2021/03/14-00:27:59.923848 7f9b095efa80 Options.compaction_filter_factory: None
+2021/03/14-00:27:59.923848 7f9b095efa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:27:59.923849 7f9b095efa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:27:59.923864 7f9b095efa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1594520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1579c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:27:59.923865 7f9b095efa80 Options.write_buffer_size: 134217728
+2021/03/14-00:27:59.923866 7f9b095efa80 Options.max_write_buffer_number: 6
+2021/03/14-00:27:59.923866 7f9b095efa80 Options.compression[0]: NoCompression
+2021/03/14-00:27:59.923867 7f9b095efa80 Options.compression[1]: NoCompression
+2021/03/14-00:27:59.923868 7f9b095efa80 Options.compression[2]: Snappy
+2021/03/14-00:27:59.923868 7f9b095efa80 Options.compression[3]: Snappy
+2021/03/14-00:27:59.923869 7f9b095efa80 Options.compression[4]: Snappy
+2021/03/14-00:27:59.923870 7f9b095efa80 Options.compression[5]: Snappy
+2021/03/14-00:27:59.923870 7f9b095efa80 Options.compression[6]: Snappy
+2021/03/14-00:27:59.923871 7f9b095efa80 Options.bottommost_compression: Disabled
+2021/03/14-00:27:59.923872 7f9b095efa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:27:59.923873 7f9b095efa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:27:59.923873 7f9b095efa80 Options.num_levels: 7
+2021/03/14-00:27:59.923874 7f9b095efa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:27:59.923874 7f9b095efa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:27:59.923875 7f9b095efa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:27:59.923875 7f9b095efa80 Options.compression_opts.level: -1
+2021/03/14-00:27:59.923876 7f9b095efa80 Options.compression_opts.strategy: 0
+2021/03/14-00:27:59.923877 7f9b095efa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:27:59.923877 7f9b095efa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:27:59.923878 7f9b095efa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:27:59.923878 7f9b095efa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:27:59.923879 7f9b095efa80 Options.target_file_size_base: 67108864
+2021/03/14-00:27:59.923879 7f9b095efa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:27:59.923880 7f9b095efa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:27:59.923881 7f9b095efa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:27:59.923881 7f9b095efa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:27:59.923883 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:27:59.923891 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:27:59.923891 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:27:59.923892 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:27:59.923893 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:27:59.923893 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:27:59.923894 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:27:59.923894 7f9b095efa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:27:59.923895 7f9b095efa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:27:59.923895 7f9b095efa80 Options.arena_block_size: 16777216
+2021/03/14-00:27:59.923896 7f9b095efa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:27:59.923897 7f9b095efa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:27:59.923897 7f9b095efa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:27:59.923898 7f9b095efa80 Options.disable_auto_compactions: 0
+2021/03/14-00:27:59.923899 7f9b095efa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:27:59.923900 7f9b095efa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:27:59.923901 7f9b095efa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:27:59.923901 7f9b095efa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:27:59.923902 7f9b095efa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:27:59.923902 7f9b095efa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:27:59.923903 7f9b095efa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:27:59.923904 7f9b095efa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:27:59.923904 7f9b095efa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:27:59.923905 7f9b095efa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:27:59.923906 7f9b095efa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:27:59.923906 7f9b095efa80 Options.table_properties_collectors:
+2021/03/14-00:27:59.923907 7f9b095efa80 Options.inplace_update_support: 0
+2021/03/14-00:27:59.923907 7f9b095efa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:27:59.923908 7f9b095efa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:27:59.923909 7f9b095efa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:27:59.923909 7f9b095efa80 Options.bloom_locality: 0
+2021/03/14-00:27:59.923910 7f9b095efa80 Options.max_successive_merges: 0
+2021/03/14-00:27:59.923910 7f9b095efa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:27:59.923911 7f9b095efa80 Options.paranoid_file_checks: 0
+2021/03/14-00:27:59.923911 7f9b095efa80 Options.force_consistency_checks: 0
+2021/03/14-00:27:59.923912 7f9b095efa80 Options.report_bg_io_stats: 0
+2021/03/14-00:27:59.924300 7f9b095efa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:27:59.924303 7f9b095efa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:27:59.924399 7f9b095efa80 EVENT_LOG_v1 {"time_micros": 1615678079924390, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:27:59.924404 7f9b095efa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:28:00.623922 7f9b095efa80 EVENT_LOG_v1 {"time_micros": 1615678080623919, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678093112384 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678093112384
new file mode 100644
index 0000000..967f4a0
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678093112384
@@ -0,0 +1,186 @@
+2021/03/14-00:28:00.636272 7f9b095efa80 RocksDB version: 5.11.3
+2021/03/14-00:28:00.636331 7f9b095efa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:28:00.636333 7f9b095efa80 Compile date Mar 13 2021
+2021/03/14-00:28:00.636335 7f9b095efa80 DB SUMMARY
+2021/03/14-00:28:00.636419 7f9b095efa80 CURRENT file: CURRENT
+2021/03/14-00:28:00.636421 7f9b095efa80 IDENTITY file: IDENTITY
+2021/03/14-00:28:00.636428 7f9b095efa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:28:00.636430 7f9b095efa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:28:00.636431 7f9b095efa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:28:00.636435 7f9b095efa80 Options.error_if_exists: 0
+2021/03/14-00:28:00.636436 7f9b095efa80 Options.create_if_missing: 1
+2021/03/14-00:28:00.636437 7f9b095efa80 Options.paranoid_checks: 1
+2021/03/14-00:28:00.636437 7f9b095efa80 Options.env: 0x7f9b09fa9080
+2021/03/14-00:28:00.636438 7f9b095efa80 Options.info_log: 0x159cca0
+2021/03/14-00:28:00.636439 7f9b095efa80 Options.max_file_opening_threads: 16
+2021/03/14-00:28:00.636439 7f9b095efa80 Options.statistics: (nil)
+2021/03/14-00:28:00.636440 7f9b095efa80 Options.use_fsync: 0
+2021/03/14-00:28:00.636441 7f9b095efa80 Options.max_log_file_size: 0
+2021/03/14-00:28:00.636441 7f9b095efa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:28:00.636442 7f9b095efa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:28:00.636442 7f9b095efa80 Options.keep_log_file_num: 1000
+2021/03/14-00:28:00.636443 7f9b095efa80 Options.recycle_log_file_num: 0
+2021/03/14-00:28:00.636444 7f9b095efa80 Options.allow_fallocate: 1
+2021/03/14-00:28:00.636444 7f9b095efa80 Options.allow_mmap_reads: 0
+2021/03/14-00:28:00.636445 7f9b095efa80 Options.allow_mmap_writes: 0
+2021/03/14-00:28:00.636445 7f9b095efa80 Options.use_direct_reads: 0
+2021/03/14-00:28:00.636446 7f9b095efa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:28:00.636447 7f9b095efa80 Options.create_missing_column_families: 0
+2021/03/14-00:28:00.636447 7f9b095efa80 Options.db_log_dir:
+2021/03/14-00:28:00.636448 7f9b095efa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:28:00.636448 7f9b095efa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:28:00.636449 7f9b095efa80 Options.max_subcompactions: 1
+2021/03/14-00:28:00.636450 7f9b095efa80 Options.max_background_flushes: -1
+2021/03/14-00:28:00.636450 7f9b095efa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:28:00.636451 7f9b095efa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:28:00.636451 7f9b095efa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:28:00.636452 7f9b095efa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:28:00.636453 7f9b095efa80 Options.advise_random_on_open: 1
+2021/03/14-00:28:00.636453 7f9b095efa80 Options.db_write_buffer_size: 0
+2021/03/14-00:28:00.636454 7f9b095efa80 Options.write_buffer_manager: 0x1584b90
+2021/03/14-00:28:00.636454 7f9b095efa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:28:00.636455 7f9b095efa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:28:00.636455 7f9b095efa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:28:00.636456 7f9b095efa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:28:00.636457 7f9b095efa80 Options.rate_limiter: (nil)
+2021/03/14-00:28:00.636458 7f9b095efa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:28:00.636466 7f9b095efa80 Options.wal_recovery_mode: 2
+2021/03/14-00:28:00.636466 7f9b095efa80 Options.enable_thread_tracking: 0
+2021/03/14-00:28:00.636467 7f9b095efa80 Options.enable_pipelined_write: 0
+2021/03/14-00:28:00.636468 7f9b095efa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:28:00.636468 7f9b095efa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:28:00.636469 7f9b095efa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:28:00.636469 7f9b095efa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:28:00.636470 7f9b095efa80 Options.row_cache: None
+2021/03/14-00:28:00.636470 7f9b095efa80 Options.wal_filter: None
+2021/03/14-00:28:00.636471 7f9b095efa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:28:00.636472 7f9b095efa80 Options.allow_ingest_behind: 0
+2021/03/14-00:28:00.636472 7f9b095efa80 Options.preserve_deletes: 0
+2021/03/14-00:28:00.636473 7f9b095efa80 Options.two_write_queues: 0
+2021/03/14-00:28:00.636473 7f9b095efa80 Options.manual_wal_flush: 0
+2021/03/14-00:28:00.636475 7f9b095efa80 Options.max_background_jobs: 16
+2021/03/14-00:28:00.636475 7f9b095efa80 Options.max_background_compactions: -1
+2021/03/14-00:28:00.636476 7f9b095efa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:28:00.636476 7f9b095efa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:28:00.636477 7f9b095efa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:28:00.636478 7f9b095efa80 Options.max_total_wal_size: 0
+2021/03/14-00:28:00.636478 7f9b095efa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:28:00.636479 7f9b095efa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:28:00.636479 7f9b095efa80 Options.max_open_files: -1
+2021/03/14-00:28:00.636480 7f9b095efa80 Options.bytes_per_sync: 0
+2021/03/14-00:28:00.636481 7f9b095efa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:28:00.636481 7f9b095efa80 Options.compaction_readahead_size: 0
+2021/03/14-00:28:00.636482 7f9b095efa80 Compression algorithms supported:
+2021/03/14-00:28:00.636482 7f9b095efa80 Snappy supported: 1
+2021/03/14-00:28:00.636483 7f9b095efa80 Zlib supported: 1
+2021/03/14-00:28:00.636483 7f9b095efa80 Bzip supported: 1
+2021/03/14-00:28:00.636484 7f9b095efa80 LZ4 supported: 1
+2021/03/14-00:28:00.636485 7f9b095efa80 ZSTDNotFinal supported: 1
+2021/03/14-00:28:00.636489 7f9b095efa80 ZSTD supported: 1
+2021/03/14-00:28:00.636492 7f9b095efa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:28:00.636493 7f9b095efa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:28:00.636584 7f9b095efa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:28:00.636637 7f9b095efa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:28:00.636639 7f9b095efa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:28:00.636640 7f9b095efa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:28:00.636641 7f9b095efa80 Options.compaction_filter: None
+2021/03/14-00:28:00.636641 7f9b095efa80 Options.compaction_filter_factory: None
+2021/03/14-00:28:00.636642 7f9b095efa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:28:00.636643 7f9b095efa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:28:00.636656 7f9b095efa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1594520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1579c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:28:00.636657 7f9b095efa80 Options.write_buffer_size: 134217728
+2021/03/14-00:28:00.636658 7f9b095efa80 Options.max_write_buffer_number: 6
+2021/03/14-00:28:00.636659 7f9b095efa80 Options.compression[0]: NoCompression
+2021/03/14-00:28:00.636659 7f9b095efa80 Options.compression[1]: NoCompression
+2021/03/14-00:28:00.636660 7f9b095efa80 Options.compression[2]: Snappy
+2021/03/14-00:28:00.636661 7f9b095efa80 Options.compression[3]: Snappy
+2021/03/14-00:28:00.636661 7f9b095efa80 Options.compression[4]: Snappy
+2021/03/14-00:28:00.636662 7f9b095efa80 Options.compression[5]: Snappy
+2021/03/14-00:28:00.636662 7f9b095efa80 Options.compression[6]: Snappy
+2021/03/14-00:28:00.636663 7f9b095efa80 Options.bottommost_compression: Disabled
+2021/03/14-00:28:00.636664 7f9b095efa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:28:00.636665 7f9b095efa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:28:00.636665 7f9b095efa80 Options.num_levels: 7
+2021/03/14-00:28:00.636666 7f9b095efa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:28:00.636666 7f9b095efa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:28:00.636667 7f9b095efa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:28:00.636668 7f9b095efa80 Options.compression_opts.level: -1
+2021/03/14-00:28:00.636668 7f9b095efa80 Options.compression_opts.strategy: 0
+2021/03/14-00:28:00.636669 7f9b095efa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:28:00.636669 7f9b095efa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:28:00.636670 7f9b095efa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:28:00.636670 7f9b095efa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:28:00.636671 7f9b095efa80 Options.target_file_size_base: 67108864
+2021/03/14-00:28:00.636672 7f9b095efa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:28:00.636672 7f9b095efa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:28:00.636673 7f9b095efa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:28:00.636673 7f9b095efa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:28:00.636675 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:28:00.636682 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:28:00.636683 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:28:00.636684 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:28:00.636684 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:28:00.636685 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:28:00.636685 7f9b095efa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:28:00.636686 7f9b095efa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:28:00.636687 7f9b095efa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:28:00.636687 7f9b095efa80 Options.arena_block_size: 16777216
+2021/03/14-00:28:00.636688 7f9b095efa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:28:00.636689 7f9b095efa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:28:00.636689 7f9b095efa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:28:00.636690 7f9b095efa80 Options.disable_auto_compactions: 0
+2021/03/14-00:28:00.636691 7f9b095efa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:28:00.636692 7f9b095efa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:28:00.636693 7f9b095efa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:28:00.636693 7f9b095efa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:28:00.636694 7f9b095efa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:28:00.636695 7f9b095efa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:28:00.636695 7f9b095efa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:28:00.636696 7f9b095efa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:28:00.636697 7f9b095efa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:28:00.636697 7f9b095efa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:28:00.636698 7f9b095efa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:28:00.636698 7f9b095efa80 Options.table_properties_collectors:
+2021/03/14-00:28:00.636699 7f9b095efa80 Options.inplace_update_support: 0
+2021/03/14-00:28:00.636700 7f9b095efa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:28:00.636700 7f9b095efa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:28:00.636701 7f9b095efa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:28:00.636702 7f9b095efa80 Options.bloom_locality: 0
+2021/03/14-00:28:00.636702 7f9b095efa80 Options.max_successive_merges: 0
+2021/03/14-00:28:00.636703 7f9b095efa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:28:00.636703 7f9b095efa80 Options.paranoid_file_checks: 0
+2021/03/14-00:28:00.636704 7f9b095efa80 Options.force_consistency_checks: 0
+2021/03/14-00:28:00.636705 7f9b095efa80 Options.report_bg_io_stats: 0
+2021/03/14-00:28:00.637097 7f9b095efa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:28:00.637099 7f9b095efa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:28:00.637199 7f9b095efa80 EVENT_LOG_v1 {"time_micros": 1615678080637190, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:28:00.637204 7f9b095efa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:28:01.334419 7f9b095efa80 EVENT_LOG_v1 {"time_micros": 1615678081334415, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678093799915 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678093799915
new file mode 100644
index 0000000..c61917e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678093799915
@@ -0,0 +1,186 @@
+2021/03/14-00:28:13.112915 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:28:13.113002 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:28:13.113004 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:28:13.113006 7ffff7156a80 DB SUMMARY
+2021/03/14-00:28:13.113090 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:28:13.113092 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:28:13.113100 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:28:13.113101 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:28:13.113101 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:28:13.113106 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:28:13.113107 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:28:13.113108 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:28:13.113108 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:28:13.113109 7ffff7156a80 Options.info_log: 0xfb2fa0
+2021/03/14-00:28:13.113110 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:28:13.113110 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:28:13.113111 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:28:13.113112 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:28:13.113112 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:28:13.113113 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:28:13.113113 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:28:13.113114 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:28:13.113115 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:28:13.113116 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:28:13.113116 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:28:13.113117 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:28:13.113117 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:28:13.113118 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:28:13.113118 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:28:13.113119 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:28:13.113119 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:28:13.113120 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:28:13.113121 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:28:13.113121 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:28:13.113122 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:28:13.113122 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:28:13.113123 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:28:13.113124 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:28:13.113124 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:28:13.113125 7ffff7156a80 Options.write_buffer_manager: 0xf9aeb0
+2021/03/14-00:28:13.113125 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:28:13.113126 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:28:13.113126 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:28:13.113127 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:28:13.113127 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:28:13.113129 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:28:13.113136 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:28:13.113137 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:28:13.113137 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:28:13.113138 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:28:13.113138 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:28:13.113139 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:28:13.113140 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:28:13.113140 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:28:13.113141 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:28:13.113141 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:28:13.113142 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:28:13.113142 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:28:13.113143 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:28:13.113143 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:28:13.113145 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:28:13.113145 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:28:13.113146 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:28:13.113146 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:28:13.113147 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:28:13.113147 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:28:13.113148 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:28:13.113149 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:28:13.113149 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:28:13.113150 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:28:13.113150 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:28:13.113151 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:28:13.113151 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:28:13.113152 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:28:13.113153 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:28:13.113153 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:28:13.113154 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:28:13.113154 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:28:13.113156 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:28:13.113159 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:28:13.113160 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:28:13.113259 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:28:13.113310 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:28:13.113312 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:28:13.113313 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:28:13.113313 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:28:13.113314 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:28:13.113315 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:28:13.113315 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:28:13.113328 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfaa840)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xf8ff40
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:28:13.113329 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:28:13.113330 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:28:13.113331 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:28:13.113331 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:28:13.113332 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:28:13.113333 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:28:13.113333 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:28:13.113334 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:28:13.113334 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:28:13.113335 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:28:13.113336 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:28:13.113336 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:28:13.113337 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:28:13.113338 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:28:13.113338 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:28:13.113339 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:28:13.113339 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:28:13.113340 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:28:13.113341 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:28:13.113341 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:28:13.113342 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:28:13.113342 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:28:13.113343 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:28:13.113344 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:28:13.113344 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:28:13.113345 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:28:13.113345 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:28:13.113347 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:28:13.113355 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:28:13.113356 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:28:13.113357 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:28:13.113357 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:28:13.113358 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:28:13.113358 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:28:13.113359 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:28:13.113359 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:28:13.113360 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:28:13.113361 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:28:13.113361 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:28:13.113362 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:28:13.113362 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:28:13.113363 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:28:13.113364 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:28:13.113365 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:28:13.113365 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:28:13.113366 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:28:13.113366 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:28:13.113367 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:28:13.113368 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:28:13.113368 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:28:13.113369 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:28:13.113369 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:28:13.113370 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:28:13.113370 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:28:13.113371 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:28:13.113372 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:28:13.113372 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:28:13.113373 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:28:13.113374 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:28:13.113374 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:28:13.113375 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:28:13.113375 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:28:13.113376 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:28:13.114786 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:28:13.114790 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:28:13.114896 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678093114888, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:28:13.114902 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:28:13.792749 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678094481915 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678094481915
new file mode 100644
index 0000000..63cf75c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678094481915
@@ -0,0 +1,186 @@
+2021/03/14-00:28:13.800407 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:28:13.800438 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:28:13.800439 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:28:13.800441 7ffff7156a80 DB SUMMARY
+2021/03/14-00:28:13.800522 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:28:13.800523 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:28:13.800531 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:28:13.800532 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:28:13.800533 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:28:13.800537 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:28:13.800538 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:28:13.800538 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:28:13.800539 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:28:13.800540 7ffff7156a80 Options.info_log: 0xfc6bd0
+2021/03/14-00:28:13.800540 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:28:13.800541 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:28:13.800541 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:28:13.800542 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:28:13.800543 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:28:13.800543 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:28:13.800544 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:28:13.800544 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:28:13.800545 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:28:13.800546 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:28:13.800546 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:28:13.800547 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:28:13.800547 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:28:13.800548 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:28:13.800548 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:28:13.800549 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:28:13.800549 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:28:13.800550 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:28:13.800551 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:28:13.800551 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:28:13.800552 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:28:13.800552 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:28:13.800553 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:28:13.800554 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:28:13.800554 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:28:13.800555 7ffff7156a80 Options.write_buffer_manager: 0xfc6ad0
+2021/03/14-00:28:13.800555 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:28:13.800556 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:28:13.800556 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:28:13.800557 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:28:13.800557 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:28:13.800558 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:28:13.800565 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:28:13.800566 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:28:13.800566 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:28:13.800567 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:28:13.800568 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:28:13.800568 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:28:13.800569 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:28:13.800569 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:28:13.800570 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:28:13.800570 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:28:13.800571 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:28:13.800572 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:28:13.800572 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:28:13.800573 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:28:13.800573 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:28:13.800574 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:28:13.800574 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:28:13.800575 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:28:13.800575 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:28:13.800576 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:28:13.800577 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:28:13.800577 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:28:13.800578 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:28:13.800578 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:28:13.800579 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:28:13.800579 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:28:13.800580 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:28:13.800581 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:28:13.800581 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:28:13.800582 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:28:13.800582 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:28:13.800583 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:28:13.800584 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:28:13.800585 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:28:13.800586 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:28:13.800647 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:28:13.800685 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:28:13.800687 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:28:13.800688 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:28:13.800688 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:28:13.800689 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:28:13.800689 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:28:13.800690 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:28:13.800705 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfc82a0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xfc9390
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:28:13.800706 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:28:13.800706 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:28:13.800707 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:28:13.800708 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:28:13.800708 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:28:13.800709 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:28:13.800709 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:28:13.800710 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:28:13.800710 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:28:13.800711 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:28:13.800712 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:28:13.800712 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:28:13.800713 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:28:13.800714 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:28:13.800714 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:28:13.800715 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:28:13.800715 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:28:13.800716 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:28:13.800717 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:28:13.800717 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:28:13.800718 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:28:13.800718 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:28:13.800719 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:28:13.800719 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:28:13.800720 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:28:13.800721 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:28:13.800721 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:28:13.800723 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:28:13.800730 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:28:13.800731 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:28:13.800732 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:28:13.800732 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:28:13.800733 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:28:13.800733 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:28:13.800734 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:28:13.800734 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:28:13.800735 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:28:13.800736 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:28:13.800736 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:28:13.800737 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:28:13.800737 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:28:13.800738 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:28:13.800739 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:28:13.800740 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:28:13.800740 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:28:13.800741 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:28:13.800741 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:28:13.800742 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:28:13.800743 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:28:13.800743 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:28:13.800744 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:28:13.800744 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:28:13.800745 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:28:13.800745 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:28:13.800746 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:28:13.800747 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:28:13.800747 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:28:13.800748 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:28:13.800749 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:28:13.800749 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:28:13.800750 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:28:13.800750 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:28:13.800751 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:28:13.801959 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:28:13.801963 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:28:13.802042 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678093802039, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:28:13.802045 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:28:14.475054 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678095212725 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678095212725
new file mode 100644
index 0000000..9208b1d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678095212725
@@ -0,0 +1,186 @@
+2021/03/14-00:28:14.482440 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:28:14.482471 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:28:14.482473 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:28:14.482474 7ffff7156a80 DB SUMMARY
+2021/03/14-00:28:14.482556 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:28:14.482557 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:28:14.482565 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:28:14.482567 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:28:14.482567 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:28:14.482572 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:28:14.482572 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:28:14.482573 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:28:14.482574 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:28:14.482574 7ffff7156a80 Options.info_log: 0xff63b0
+2021/03/14-00:28:14.482575 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:28:14.482575 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:28:14.482576 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:28:14.482577 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:28:14.482577 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:28:14.482578 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:28:14.482578 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:28:14.482579 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:28:14.482580 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:28:14.482580 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:28:14.482581 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:28:14.482581 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:28:14.482582 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:28:14.482583 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:28:14.482583 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:28:14.482584 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:28:14.482584 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:28:14.482585 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:28:14.482585 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:28:14.482586 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:28:14.482587 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:28:14.482587 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:28:14.482588 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:28:14.482588 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:28:14.482589 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:28:14.482589 7ffff7156a80 Options.write_buffer_manager: 0xff7f20
+2021/03/14-00:28:14.482590 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:28:14.482590 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:28:14.482591 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:28:14.482592 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:28:14.482592 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:28:14.482593 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:28:14.482600 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:28:14.482601 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:28:14.482602 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:28:14.482602 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:28:14.482603 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:28:14.482603 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:28:14.482604 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:28:14.482605 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:28:14.482605 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:28:14.482606 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:28:14.482606 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:28:14.482607 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:28:14.482607 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:28:14.482608 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:28:14.482608 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:28:14.482609 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:28:14.482609 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:28:14.482610 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:28:14.482611 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:28:14.482611 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:28:14.482612 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:28:14.482612 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:28:14.482613 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:28:14.482614 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:28:14.482614 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:28:14.482615 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:28:14.482615 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:28:14.482616 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:28:14.482616 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:28:14.482617 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:28:14.482617 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:28:14.482618 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:28:14.482619 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:28:14.482620 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:28:14.482621 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:28:14.482681 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:28:14.482719 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:28:14.482721 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:28:14.482722 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:28:14.482722 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:28:14.482723 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:28:14.482723 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:28:14.482724 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:28:14.482738 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xff7670)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xff9480
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:28:14.482739 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:28:14.482739 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:28:14.482740 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:28:14.482741 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:28:14.482741 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:28:14.482742 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:28:14.482743 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:28:14.482743 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:28:14.482744 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:28:14.482744 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:28:14.482745 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:28:14.482746 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:28:14.482746 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:28:14.482747 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:28:14.482747 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:28:14.482748 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:28:14.482749 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:28:14.482749 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:28:14.482750 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:28:14.482750 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:28:14.482751 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:28:14.482751 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:28:14.482752 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:28:14.482753 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:28:14.482753 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:28:14.482754 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:28:14.482754 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:28:14.482756 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:28:14.482763 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:28:14.482764 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:28:14.482765 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:28:14.482765 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:28:14.482766 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:28:14.482766 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:28:14.482767 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:28:14.482767 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:28:14.482768 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:28:14.482769 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:28:14.482769 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:28:14.482770 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:28:14.482770 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:28:14.482771 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:28:14.482772 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:28:14.482773 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:28:14.482773 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:28:14.482774 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:28:14.482774 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:28:14.482775 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:28:14.482776 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:28:14.482776 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:28:14.482777 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:28:14.482777 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:28:14.482778 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:28:14.482779 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:28:14.482779 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:28:14.482780 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:28:14.482781 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:28:14.482781 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:28:14.482782 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:28:14.482782 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:28:14.482783 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:28:14.482783 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:28:14.482784 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:28:14.483996 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:28:14.483999 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:28:14.484070 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678094484068, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:28:14.484073 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:28:15.206188 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678242695052 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678242695052
new file mode 100644
index 0000000..d6c17c9
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678242695052
@@ -0,0 +1,186 @@
+2021/03/14-00:28:15.213786 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:28:15.213817 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:28:15.213818 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:28:15.213819 7ffff7156a80 DB SUMMARY
+2021/03/14-00:28:15.213901 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:28:15.213902 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:28:15.213910 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:28:15.213912 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:28:15.213912 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:28:15.213917 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:28:15.213917 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:28:15.213918 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:28:15.213919 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:28:15.213919 7ffff7156a80 Options.info_log: 0x1025f20
+2021/03/14-00:28:15.213920 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:28:15.213920 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:28:15.213921 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:28:15.213922 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:28:15.213922 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:28:15.213923 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:28:15.213924 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:28:15.213924 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:28:15.213925 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:28:15.213925 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:28:15.213926 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:28:15.213926 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:28:15.213927 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:28:15.213928 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:28:15.213928 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:28:15.213929 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:28:15.213929 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:28:15.213930 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:28:15.213930 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:28:15.213931 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:28:15.213932 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:28:15.213932 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:28:15.213933 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:28:15.213933 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:28:15.213934 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:28:15.213934 7ffff7156a80 Options.write_buffer_manager: 0x1045dc0
+2021/03/14-00:28:15.213935 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:28:15.213935 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:28:15.213936 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:28:15.213937 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:28:15.213937 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:28:15.213938 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:28:15.213945 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:28:15.213946 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:28:15.213946 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:28:15.213947 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:28:15.213948 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:28:15.213948 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:28:15.213949 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:28:15.213949 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:28:15.213950 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:28:15.213950 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:28:15.213951 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:28:15.213952 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:28:15.213952 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:28:15.213953 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:28:15.213953 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:28:15.213954 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:28:15.213954 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:28:15.213955 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:28:15.213955 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:28:15.213956 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:28:15.213957 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:28:15.213957 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:28:15.213958 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:28:15.213958 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:28:15.213959 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:28:15.213959 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:28:15.213960 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:28:15.213961 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:28:15.213961 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:28:15.213962 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:28:15.213962 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:28:15.213963 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:28:15.213963 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:28:15.213965 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:28:15.213966 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:28:15.214025 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:28:15.214063 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:28:15.214064 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:28:15.214065 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:28:15.214066 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:28:15.214066 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:28:15.214067 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:28:15.214067 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:28:15.214081 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10280c0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1029280
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:28:15.214082 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:28:15.214083 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:28:15.214083 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:28:15.214084 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:28:15.214085 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:28:15.214085 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:28:15.214086 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:28:15.214086 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:28:15.214087 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:28:15.214088 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:28:15.214088 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:28:15.214089 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:28:15.214089 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:28:15.214090 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:28:15.214091 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:28:15.214091 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:28:15.214092 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:28:15.214092 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:28:15.214093 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:28:15.214093 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:28:15.214094 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:28:15.214095 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:28:15.214095 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:28:15.214096 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:28:15.214096 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:28:15.214097 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:28:15.214098 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:28:15.214099 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:28:15.214106 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:28:15.214107 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:28:15.214107 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:28:15.214108 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:28:15.214109 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:28:15.214109 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:28:15.214110 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:28:15.214110 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:28:15.214111 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:28:15.214111 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:28:15.214112 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:28:15.214113 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:28:15.214113 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:28:15.214114 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:28:15.214115 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:28:15.214115 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:28:15.214116 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:28:15.214117 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:28:15.214117 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:28:15.214118 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:28:15.214119 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:28:15.214119 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:28:15.214120 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:28:15.214120 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:28:15.214121 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:28:15.214122 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:28:15.214122 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:28:15.214123 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:28:15.214124 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:28:15.214124 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:28:15.214125 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:28:15.214126 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:28:15.214126 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:28:15.214127 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:28:15.214127 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:28:15.215654 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:28:15.215658 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:28:15.215740 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678095215738, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:28:15.215743 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:28:15.921293 7ffff7156a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678243394349 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678243394349
new file mode 100644
index 0000000..fa42e59
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678243394349
@@ -0,0 +1,186 @@
+2021/03/14-00:30:42.695533 7f2b8fe48a80 RocksDB version: 5.11.3
+2021/03/14-00:30:42.695606 7f2b8fe48a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:30:42.695608 7f2b8fe48a80 Compile date Mar 13 2021
+2021/03/14-00:30:42.695615 7f2b8fe48a80 DB SUMMARY
+2021/03/14-00:30:42.695716 7f2b8fe48a80 CURRENT file: CURRENT
+2021/03/14-00:30:42.695717 7f2b8fe48a80 IDENTITY file: IDENTITY
+2021/03/14-00:30:42.695727 7f2b8fe48a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:30:42.695728 7f2b8fe48a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:30:42.695729 7f2b8fe48a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:30:42.695735 7f2b8fe48a80 Options.error_if_exists: 0
+2021/03/14-00:30:42.695736 7f2b8fe48a80 Options.create_if_missing: 1
+2021/03/14-00:30:42.695736 7f2b8fe48a80 Options.paranoid_checks: 1
+2021/03/14-00:30:42.695737 7f2b8fe48a80 Options.env: 0x7f2b90802080
+2021/03/14-00:30:42.695738 7f2b8fe48a80 Options.info_log: 0x2cb6ca0
+2021/03/14-00:30:42.695738 7f2b8fe48a80 Options.max_file_opening_threads: 16
+2021/03/14-00:30:42.695739 7f2b8fe48a80 Options.statistics: (nil)
+2021/03/14-00:30:42.695740 7f2b8fe48a80 Options.use_fsync: 0
+2021/03/14-00:30:42.695741 7f2b8fe48a80 Options.max_log_file_size: 0
+2021/03/14-00:30:42.695741 7f2b8fe48a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:30:42.695742 7f2b8fe48a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:30:42.695743 7f2b8fe48a80 Options.keep_log_file_num: 1000
+2021/03/14-00:30:42.695743 7f2b8fe48a80 Options.recycle_log_file_num: 0
+2021/03/14-00:30:42.695744 7f2b8fe48a80 Options.allow_fallocate: 1
+2021/03/14-00:30:42.695745 7f2b8fe48a80 Options.allow_mmap_reads: 0
+2021/03/14-00:30:42.695745 7f2b8fe48a80 Options.allow_mmap_writes: 0
+2021/03/14-00:30:42.695746 7f2b8fe48a80 Options.use_direct_reads: 0
+2021/03/14-00:30:42.695747 7f2b8fe48a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:30:42.695747 7f2b8fe48a80 Options.create_missing_column_families: 0
+2021/03/14-00:30:42.695748 7f2b8fe48a80 Options.db_log_dir:
+2021/03/14-00:30:42.695749 7f2b8fe48a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:30:42.695749 7f2b8fe48a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:30:42.695750 7f2b8fe48a80 Options.max_subcompactions: 1
+2021/03/14-00:30:42.695751 7f2b8fe48a80 Options.max_background_flushes: -1
+2021/03/14-00:30:42.695751 7f2b8fe48a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:30:42.695752 7f2b8fe48a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:30:42.695753 7f2b8fe48a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:30:42.695753 7f2b8fe48a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:30:42.695754 7f2b8fe48a80 Options.advise_random_on_open: 1
+2021/03/14-00:30:42.695755 7f2b8fe48a80 Options.db_write_buffer_size: 0
+2021/03/14-00:30:42.695755 7f2b8fe48a80 Options.write_buffer_manager: 0x2c9eb90
+2021/03/14-00:30:42.695756 7f2b8fe48a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:30:42.695757 7f2b8fe48a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:30:42.695757 7f2b8fe48a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:30:42.695758 7f2b8fe48a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:30:42.695759 7f2b8fe48a80 Options.rate_limiter: (nil)
+2021/03/14-00:30:42.695760 7f2b8fe48a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:30:42.695769 7f2b8fe48a80 Options.wal_recovery_mode: 2
+2021/03/14-00:30:42.695770 7f2b8fe48a80 Options.enable_thread_tracking: 0
+2021/03/14-00:30:42.695771 7f2b8fe48a80 Options.enable_pipelined_write: 0
+2021/03/14-00:30:42.695772 7f2b8fe48a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:30:42.695772 7f2b8fe48a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:30:42.695773 7f2b8fe48a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:30:42.695774 7f2b8fe48a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:30:42.695774 7f2b8fe48a80 Options.row_cache: None
+2021/03/14-00:30:42.695775 7f2b8fe48a80 Options.wal_filter: None
+2021/03/14-00:30:42.695776 7f2b8fe48a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:30:42.695776 7f2b8fe48a80 Options.allow_ingest_behind: 0
+2021/03/14-00:30:42.695777 7f2b8fe48a80 Options.preserve_deletes: 0
+2021/03/14-00:30:42.695778 7f2b8fe48a80 Options.two_write_queues: 0
+2021/03/14-00:30:42.695778 7f2b8fe48a80 Options.manual_wal_flush: 0
+2021/03/14-00:30:42.695780 7f2b8fe48a80 Options.max_background_jobs: 16
+2021/03/14-00:30:42.695780 7f2b8fe48a80 Options.max_background_compactions: -1
+2021/03/14-00:30:42.695781 7f2b8fe48a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:30:42.695782 7f2b8fe48a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:30:42.695782 7f2b8fe48a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:30:42.695783 7f2b8fe48a80 Options.max_total_wal_size: 0
+2021/03/14-00:30:42.695784 7f2b8fe48a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:30:42.695784 7f2b8fe48a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:30:42.695785 7f2b8fe48a80 Options.max_open_files: -1
+2021/03/14-00:30:42.695786 7f2b8fe48a80 Options.bytes_per_sync: 0
+2021/03/14-00:30:42.695786 7f2b8fe48a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:30:42.695787 7f2b8fe48a80 Options.compaction_readahead_size: 0
+2021/03/14-00:30:42.695788 7f2b8fe48a80 Compression algorithms supported:
+2021/03/14-00:30:42.695788 7f2b8fe48a80 Snappy supported: 1
+2021/03/14-00:30:42.695789 7f2b8fe48a80 Zlib supported: 1
+2021/03/14-00:30:42.695790 7f2b8fe48a80 Bzip supported: 1
+2021/03/14-00:30:42.695790 7f2b8fe48a80 LZ4 supported: 1
+2021/03/14-00:30:42.695791 7f2b8fe48a80 ZSTDNotFinal supported: 1
+2021/03/14-00:30:42.695796 7f2b8fe48a80 ZSTD supported: 1
+2021/03/14-00:30:42.695800 7f2b8fe48a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:30:42.695802 7f2b8fe48a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:30:42.695947 7f2b8fe48a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:30:42.696013 7f2b8fe48a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:30:42.696015 7f2b8fe48a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:30:42.696016 7f2b8fe48a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:30:42.696017 7f2b8fe48a80 Options.compaction_filter: None
+2021/03/14-00:30:42.696017 7f2b8fe48a80 Options.compaction_filter_factory: None
+2021/03/14-00:30:42.696018 7f2b8fe48a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:30:42.696019 7f2b8fe48a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:30:42.696036 7f2b8fe48a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2cae520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c93c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:30:42.696037 7f2b8fe48a80 Options.write_buffer_size: 134217728
+2021/03/14-00:30:42.696038 7f2b8fe48a80 Options.max_write_buffer_number: 6
+2021/03/14-00:30:42.696039 7f2b8fe48a80 Options.compression[0]: NoCompression
+2021/03/14-00:30:42.696040 7f2b8fe48a80 Options.compression[1]: NoCompression
+2021/03/14-00:30:42.696040 7f2b8fe48a80 Options.compression[2]: Snappy
+2021/03/14-00:30:42.696041 7f2b8fe48a80 Options.compression[3]: Snappy
+2021/03/14-00:30:42.696042 7f2b8fe48a80 Options.compression[4]: Snappy
+2021/03/14-00:30:42.696042 7f2b8fe48a80 Options.compression[5]: Snappy
+2021/03/14-00:30:42.696043 7f2b8fe48a80 Options.compression[6]: Snappy
+2021/03/14-00:30:42.696044 7f2b8fe48a80 Options.bottommost_compression: Disabled
+2021/03/14-00:30:42.696044 7f2b8fe48a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:30:42.696045 7f2b8fe48a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:30:42.696046 7f2b8fe48a80 Options.num_levels: 7
+2021/03/14-00:30:42.696046 7f2b8fe48a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:30:42.696047 7f2b8fe48a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:30:42.696048 7f2b8fe48a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:30:42.696049 7f2b8fe48a80 Options.compression_opts.level: -1
+2021/03/14-00:30:42.696049 7f2b8fe48a80 Options.compression_opts.strategy: 0
+2021/03/14-00:30:42.696050 7f2b8fe48a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:30:42.696051 7f2b8fe48a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:30:42.696051 7f2b8fe48a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:30:42.696052 7f2b8fe48a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:30:42.696053 7f2b8fe48a80 Options.target_file_size_base: 67108864
+2021/03/14-00:30:42.696053 7f2b8fe48a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:30:42.696054 7f2b8fe48a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:30:42.696055 7f2b8fe48a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:30:42.696055 7f2b8fe48a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:30:42.696057 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:30:42.696066 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:30:42.696067 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:30:42.696068 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:30:42.696068 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:30:42.696069 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:30:42.696070 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:30:42.696070 7f2b8fe48a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:30:42.696071 7f2b8fe48a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:30:42.696072 7f2b8fe48a80 Options.arena_block_size: 16777216
+2021/03/14-00:30:42.696072 7f2b8fe48a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:30:42.696073 7f2b8fe48a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:30:42.696074 7f2b8fe48a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:30:42.696074 7f2b8fe48a80 Options.disable_auto_compactions: 0
+2021/03/14-00:30:42.696076 7f2b8fe48a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:30:42.696077 7f2b8fe48a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:30:42.696078 7f2b8fe48a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:30:42.696079 7f2b8fe48a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:30:42.696079 7f2b8fe48a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:30:42.696080 7f2b8fe48a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:30:42.696081 7f2b8fe48a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:30:42.696082 7f2b8fe48a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:30:42.696082 7f2b8fe48a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:30:42.696083 7f2b8fe48a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:30:42.696084 7f2b8fe48a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:30:42.696084 7f2b8fe48a80 Options.table_properties_collectors:
+2021/03/14-00:30:42.696085 7f2b8fe48a80 Options.inplace_update_support: 0
+2021/03/14-00:30:42.696085 7f2b8fe48a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:30:42.696086 7f2b8fe48a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:30:42.696087 7f2b8fe48a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:30:42.696088 7f2b8fe48a80 Options.bloom_locality: 0
+2021/03/14-00:30:42.696088 7f2b8fe48a80 Options.max_successive_merges: 0
+2021/03/14-00:30:42.696089 7f2b8fe48a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:30:42.696090 7f2b8fe48a80 Options.paranoid_file_checks: 0
+2021/03/14-00:30:42.696090 7f2b8fe48a80 Options.force_consistency_checks: 0
+2021/03/14-00:30:42.696091 7f2b8fe48a80 Options.report_bg_io_stats: 0
+2021/03/14-00:30:42.696580 7f2b8fe48a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:30:42.696583 7f2b8fe48a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:30:42.696704 7f2b8fe48a80 EVENT_LOG_v1 {"time_micros": 1615678242696689, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:30:42.696711 7f2b8fe48a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:30:43.382726 7f2b8fe48a80 EVENT_LOG_v1 {"time_micros": 1615678243382722, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678244096894 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678244096894
new file mode 100644
index 0000000..2391c64
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678244096894
@@ -0,0 +1,186 @@
+2021/03/14-00:30:43.394696 7f2b8fe48a80 RocksDB version: 5.11.3
+2021/03/14-00:30:43.394748 7f2b8fe48a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:30:43.394750 7f2b8fe48a80 Compile date Mar 13 2021
+2021/03/14-00:30:43.394754 7f2b8fe48a80 DB SUMMARY
+2021/03/14-00:30:43.394839 7f2b8fe48a80 CURRENT file: CURRENT
+2021/03/14-00:30:43.394840 7f2b8fe48a80 IDENTITY file: IDENTITY
+2021/03/14-00:30:43.394849 7f2b8fe48a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:30:43.394850 7f2b8fe48a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:30:43.394851 7f2b8fe48a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:30:43.394856 7f2b8fe48a80 Options.error_if_exists: 0
+2021/03/14-00:30:43.394857 7f2b8fe48a80 Options.create_if_missing: 1
+2021/03/14-00:30:43.394857 7f2b8fe48a80 Options.paranoid_checks: 1
+2021/03/14-00:30:43.394858 7f2b8fe48a80 Options.env: 0x7f2b90802080
+2021/03/14-00:30:43.394858 7f2b8fe48a80 Options.info_log: 0x2cb6ca0
+2021/03/14-00:30:43.394859 7f2b8fe48a80 Options.max_file_opening_threads: 16
+2021/03/14-00:30:43.394860 7f2b8fe48a80 Options.statistics: (nil)
+2021/03/14-00:30:43.394860 7f2b8fe48a80 Options.use_fsync: 0
+2021/03/14-00:30:43.394861 7f2b8fe48a80 Options.max_log_file_size: 0
+2021/03/14-00:30:43.394861 7f2b8fe48a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:30:43.394862 7f2b8fe48a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:30:43.394863 7f2b8fe48a80 Options.keep_log_file_num: 1000
+2021/03/14-00:30:43.394863 7f2b8fe48a80 Options.recycle_log_file_num: 0
+2021/03/14-00:30:43.394864 7f2b8fe48a80 Options.allow_fallocate: 1
+2021/03/14-00:30:43.394864 7f2b8fe48a80 Options.allow_mmap_reads: 0
+2021/03/14-00:30:43.394865 7f2b8fe48a80 Options.allow_mmap_writes: 0
+2021/03/14-00:30:43.394866 7f2b8fe48a80 Options.use_direct_reads: 0
+2021/03/14-00:30:43.394866 7f2b8fe48a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:30:43.394867 7f2b8fe48a80 Options.create_missing_column_families: 0
+2021/03/14-00:30:43.394867 7f2b8fe48a80 Options.db_log_dir:
+2021/03/14-00:30:43.394868 7f2b8fe48a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:30:43.394868 7f2b8fe48a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:30:43.394869 7f2b8fe48a80 Options.max_subcompactions: 1
+2021/03/14-00:30:43.394869 7f2b8fe48a80 Options.max_background_flushes: -1
+2021/03/14-00:30:43.394870 7f2b8fe48a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:30:43.394871 7f2b8fe48a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:30:43.394871 7f2b8fe48a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:30:43.394872 7f2b8fe48a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:30:43.394872 7f2b8fe48a80 Options.advise_random_on_open: 1
+2021/03/14-00:30:43.394873 7f2b8fe48a80 Options.db_write_buffer_size: 0
+2021/03/14-00:30:43.394873 7f2b8fe48a80 Options.write_buffer_manager: 0x2c9eb90
+2021/03/14-00:30:43.394874 7f2b8fe48a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:30:43.394875 7f2b8fe48a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:30:43.394875 7f2b8fe48a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:30:43.394876 7f2b8fe48a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:30:43.394876 7f2b8fe48a80 Options.rate_limiter: (nil)
+2021/03/14-00:30:43.394878 7f2b8fe48a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:30:43.394885 7f2b8fe48a80 Options.wal_recovery_mode: 2
+2021/03/14-00:30:43.394886 7f2b8fe48a80 Options.enable_thread_tracking: 0
+2021/03/14-00:30:43.394887 7f2b8fe48a80 Options.enable_pipelined_write: 0
+2021/03/14-00:30:43.394887 7f2b8fe48a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:30:43.394888 7f2b8fe48a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:30:43.394888 7f2b8fe48a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:30:43.394889 7f2b8fe48a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:30:43.394889 7f2b8fe48a80 Options.row_cache: None
+2021/03/14-00:30:43.394890 7f2b8fe48a80 Options.wal_filter: None
+2021/03/14-00:30:43.394891 7f2b8fe48a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:30:43.394891 7f2b8fe48a80 Options.allow_ingest_behind: 0
+2021/03/14-00:30:43.394892 7f2b8fe48a80 Options.preserve_deletes: 0
+2021/03/14-00:30:43.394892 7f2b8fe48a80 Options.two_write_queues: 0
+2021/03/14-00:30:43.394893 7f2b8fe48a80 Options.manual_wal_flush: 0
+2021/03/14-00:30:43.394894 7f2b8fe48a80 Options.max_background_jobs: 16
+2021/03/14-00:30:43.394895 7f2b8fe48a80 Options.max_background_compactions: -1
+2021/03/14-00:30:43.394895 7f2b8fe48a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:30:43.394896 7f2b8fe48a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:30:43.394896 7f2b8fe48a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:30:43.394897 7f2b8fe48a80 Options.max_total_wal_size: 0
+2021/03/14-00:30:43.394897 7f2b8fe48a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:30:43.394898 7f2b8fe48a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:30:43.394899 7f2b8fe48a80 Options.max_open_files: -1
+2021/03/14-00:30:43.394899 7f2b8fe48a80 Options.bytes_per_sync: 0
+2021/03/14-00:30:43.394900 7f2b8fe48a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:30:43.394900 7f2b8fe48a80 Options.compaction_readahead_size: 0
+2021/03/14-00:30:43.394901 7f2b8fe48a80 Compression algorithms supported:
+2021/03/14-00:30:43.394901 7f2b8fe48a80 Snappy supported: 1
+2021/03/14-00:30:43.394902 7f2b8fe48a80 Zlib supported: 1
+2021/03/14-00:30:43.394903 7f2b8fe48a80 Bzip supported: 1
+2021/03/14-00:30:43.394903 7f2b8fe48a80 LZ4 supported: 1
+2021/03/14-00:30:43.394904 7f2b8fe48a80 ZSTDNotFinal supported: 1
+2021/03/14-00:30:43.394907 7f2b8fe48a80 ZSTD supported: 1
+2021/03/14-00:30:43.394910 7f2b8fe48a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:30:43.394912 7f2b8fe48a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:30:43.395002 7f2b8fe48a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:30:43.395053 7f2b8fe48a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:30:43.395055 7f2b8fe48a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:30:43.395055 7f2b8fe48a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:30:43.395056 7f2b8fe48a80 Options.compaction_filter: None
+2021/03/14-00:30:43.395057 7f2b8fe48a80 Options.compaction_filter_factory: None
+2021/03/14-00:30:43.395057 7f2b8fe48a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:30:43.395058 7f2b8fe48a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:30:43.395071 7f2b8fe48a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2cae520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c93c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:30:43.395072 7f2b8fe48a80 Options.write_buffer_size: 134217728
+2021/03/14-00:30:43.395073 7f2b8fe48a80 Options.max_write_buffer_number: 6
+2021/03/14-00:30:43.395073 7f2b8fe48a80 Options.compression[0]: NoCompression
+2021/03/14-00:30:43.395074 7f2b8fe48a80 Options.compression[1]: NoCompression
+2021/03/14-00:30:43.395075 7f2b8fe48a80 Options.compression[2]: Snappy
+2021/03/14-00:30:43.395075 7f2b8fe48a80 Options.compression[3]: Snappy
+2021/03/14-00:30:43.395076 7f2b8fe48a80 Options.compression[4]: Snappy
+2021/03/14-00:30:43.395076 7f2b8fe48a80 Options.compression[5]: Snappy
+2021/03/14-00:30:43.395077 7f2b8fe48a80 Options.compression[6]: Snappy
+2021/03/14-00:30:43.395077 7f2b8fe48a80 Options.bottommost_compression: Disabled
+2021/03/14-00:30:43.395078 7f2b8fe48a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:30:43.395079 7f2b8fe48a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:30:43.395079 7f2b8fe48a80 Options.num_levels: 7
+2021/03/14-00:30:43.395080 7f2b8fe48a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:30:43.395080 7f2b8fe48a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:30:43.395081 7f2b8fe48a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:30:43.395082 7f2b8fe48a80 Options.compression_opts.level: -1
+2021/03/14-00:30:43.395082 7f2b8fe48a80 Options.compression_opts.strategy: 0
+2021/03/14-00:30:43.395083 7f2b8fe48a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:30:43.395083 7f2b8fe48a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:30:43.395084 7f2b8fe48a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:30:43.395085 7f2b8fe48a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:30:43.395085 7f2b8fe48a80 Options.target_file_size_base: 67108864
+2021/03/14-00:30:43.395086 7f2b8fe48a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:30:43.395086 7f2b8fe48a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:30:43.395087 7f2b8fe48a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:30:43.395088 7f2b8fe48a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:30:43.395089 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:30:43.395096 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:30:43.395097 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:30:43.395098 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:30:43.395098 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:30:43.395099 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:30:43.395099 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:30:43.395100 7f2b8fe48a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:30:43.395100 7f2b8fe48a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:30:43.395101 7f2b8fe48a80 Options.arena_block_size: 16777216
+2021/03/14-00:30:43.395102 7f2b8fe48a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:30:43.395102 7f2b8fe48a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:30:43.395103 7f2b8fe48a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:30:43.395103 7f2b8fe48a80 Options.disable_auto_compactions: 0
+2021/03/14-00:30:43.395105 7f2b8fe48a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:30:43.395106 7f2b8fe48a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:30:43.395106 7f2b8fe48a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:30:43.395107 7f2b8fe48a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:30:43.395107 7f2b8fe48a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:30:43.395108 7f2b8fe48a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:30:43.395109 7f2b8fe48a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:30:43.395110 7f2b8fe48a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:30:43.395110 7f2b8fe48a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:30:43.395111 7f2b8fe48a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:30:43.395111 7f2b8fe48a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:30:43.395112 7f2b8fe48a80 Options.table_properties_collectors:
+2021/03/14-00:30:43.395113 7f2b8fe48a80 Options.inplace_update_support: 0
+2021/03/14-00:30:43.395113 7f2b8fe48a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:30:43.395114 7f2b8fe48a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:30:43.395115 7f2b8fe48a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:30:43.395115 7f2b8fe48a80 Options.bloom_locality: 0
+2021/03/14-00:30:43.395116 7f2b8fe48a80 Options.max_successive_merges: 0
+2021/03/14-00:30:43.395116 7f2b8fe48a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:30:43.395117 7f2b8fe48a80 Options.paranoid_file_checks: 0
+2021/03/14-00:30:43.395118 7f2b8fe48a80 Options.force_consistency_checks: 0
+2021/03/14-00:30:43.395118 7f2b8fe48a80 Options.report_bg_io_stats: 0
+2021/03/14-00:30:43.395574 7f2b8fe48a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:30:43.395577 7f2b8fe48a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:30:43.395681 7f2b8fe48a80 EVENT_LOG_v1 {"time_micros": 1615678243395670, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:30:43.395687 7f2b8fe48a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:30:44.084455 7f2b8fe48a80 EVENT_LOG_v1 {"time_micros": 1615678244084452, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678244793605 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678244793605
new file mode 100644
index 0000000..2b3e715
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678244793605
@@ -0,0 +1,186 @@
+2021/03/14-00:30:44.097257 7f2b8fe48a80 RocksDB version: 5.11.3
+2021/03/14-00:30:44.097315 7f2b8fe48a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:30:44.097317 7f2b8fe48a80 Compile date Mar 13 2021
+2021/03/14-00:30:44.097322 7f2b8fe48a80 DB SUMMARY
+2021/03/14-00:30:44.097409 7f2b8fe48a80 CURRENT file: CURRENT
+2021/03/14-00:30:44.097410 7f2b8fe48a80 IDENTITY file: IDENTITY
+2021/03/14-00:30:44.097419 7f2b8fe48a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:30:44.097420 7f2b8fe48a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:30:44.097421 7f2b8fe48a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:30:44.097426 7f2b8fe48a80 Options.error_if_exists: 0
+2021/03/14-00:30:44.097426 7f2b8fe48a80 Options.create_if_missing: 1
+2021/03/14-00:30:44.097427 7f2b8fe48a80 Options.paranoid_checks: 1
+2021/03/14-00:30:44.097428 7f2b8fe48a80 Options.env: 0x7f2b90802080
+2021/03/14-00:30:44.097428 7f2b8fe48a80 Options.info_log: 0x2cb6ca0
+2021/03/14-00:30:44.097429 7f2b8fe48a80 Options.max_file_opening_threads: 16
+2021/03/14-00:30:44.097430 7f2b8fe48a80 Options.statistics: (nil)
+2021/03/14-00:30:44.097430 7f2b8fe48a80 Options.use_fsync: 0
+2021/03/14-00:30:44.097431 7f2b8fe48a80 Options.max_log_file_size: 0
+2021/03/14-00:30:44.097431 7f2b8fe48a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:30:44.097432 7f2b8fe48a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:30:44.097433 7f2b8fe48a80 Options.keep_log_file_num: 1000
+2021/03/14-00:30:44.097433 7f2b8fe48a80 Options.recycle_log_file_num: 0
+2021/03/14-00:30:44.097434 7f2b8fe48a80 Options.allow_fallocate: 1
+2021/03/14-00:30:44.097435 7f2b8fe48a80 Options.allow_mmap_reads: 0
+2021/03/14-00:30:44.097435 7f2b8fe48a80 Options.allow_mmap_writes: 0
+2021/03/14-00:30:44.097436 7f2b8fe48a80 Options.use_direct_reads: 0
+2021/03/14-00:30:44.097436 7f2b8fe48a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:30:44.097437 7f2b8fe48a80 Options.create_missing_column_families: 0
+2021/03/14-00:30:44.097437 7f2b8fe48a80 Options.db_log_dir:
+2021/03/14-00:30:44.097438 7f2b8fe48a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:30:44.097439 7f2b8fe48a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:30:44.097439 7f2b8fe48a80 Options.max_subcompactions: 1
+2021/03/14-00:30:44.097440 7f2b8fe48a80 Options.max_background_flushes: -1
+2021/03/14-00:30:44.097440 7f2b8fe48a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:30:44.097441 7f2b8fe48a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:30:44.097441 7f2b8fe48a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:30:44.097442 7f2b8fe48a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:30:44.097443 7f2b8fe48a80 Options.advise_random_on_open: 1
+2021/03/14-00:30:44.097443 7f2b8fe48a80 Options.db_write_buffer_size: 0
+2021/03/14-00:30:44.097444 7f2b8fe48a80 Options.write_buffer_manager: 0x2c9eb90
+2021/03/14-00:30:44.097444 7f2b8fe48a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:30:44.097445 7f2b8fe48a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:30:44.097446 7f2b8fe48a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:30:44.097446 7f2b8fe48a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:30:44.097447 7f2b8fe48a80 Options.rate_limiter: (nil)
+2021/03/14-00:30:44.097448 7f2b8fe48a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:30:44.097456 7f2b8fe48a80 Options.wal_recovery_mode: 2
+2021/03/14-00:30:44.097456 7f2b8fe48a80 Options.enable_thread_tracking: 0
+2021/03/14-00:30:44.097457 7f2b8fe48a80 Options.enable_pipelined_write: 0
+2021/03/14-00:30:44.097457 7f2b8fe48a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:30:44.097458 7f2b8fe48a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:30:44.097459 7f2b8fe48a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:30:44.097459 7f2b8fe48a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:30:44.097460 7f2b8fe48a80 Options.row_cache: None
+2021/03/14-00:30:44.097460 7f2b8fe48a80 Options.wal_filter: None
+2021/03/14-00:30:44.097461 7f2b8fe48a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:30:44.097462 7f2b8fe48a80 Options.allow_ingest_behind: 0
+2021/03/14-00:30:44.097462 7f2b8fe48a80 Options.preserve_deletes: 0
+2021/03/14-00:30:44.097463 7f2b8fe48a80 Options.two_write_queues: 0
+2021/03/14-00:30:44.097463 7f2b8fe48a80 Options.manual_wal_flush: 0
+2021/03/14-00:30:44.097465 7f2b8fe48a80 Options.max_background_jobs: 16
+2021/03/14-00:30:44.097465 7f2b8fe48a80 Options.max_background_compactions: -1
+2021/03/14-00:30:44.097466 7f2b8fe48a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:30:44.097466 7f2b8fe48a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:30:44.097467 7f2b8fe48a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:30:44.097468 7f2b8fe48a80 Options.max_total_wal_size: 0
+2021/03/14-00:30:44.097468 7f2b8fe48a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:30:44.097469 7f2b8fe48a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:30:44.097469 7f2b8fe48a80 Options.max_open_files: -1
+2021/03/14-00:30:44.097470 7f2b8fe48a80 Options.bytes_per_sync: 0
+2021/03/14-00:30:44.097471 7f2b8fe48a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:30:44.097471 7f2b8fe48a80 Options.compaction_readahead_size: 0
+2021/03/14-00:30:44.097472 7f2b8fe48a80 Compression algorithms supported:
+2021/03/14-00:30:44.097472 7f2b8fe48a80 Snappy supported: 1
+2021/03/14-00:30:44.097473 7f2b8fe48a80 Zlib supported: 1
+2021/03/14-00:30:44.097473 7f2b8fe48a80 Bzip supported: 1
+2021/03/14-00:30:44.097474 7f2b8fe48a80 LZ4 supported: 1
+2021/03/14-00:30:44.097475 7f2b8fe48a80 ZSTDNotFinal supported: 1
+2021/03/14-00:30:44.097479 7f2b8fe48a80 ZSTD supported: 1
+2021/03/14-00:30:44.097482 7f2b8fe48a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:30:44.097483 7f2b8fe48a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:30:44.097575 7f2b8fe48a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:30:44.097627 7f2b8fe48a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:30:44.097629 7f2b8fe48a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:30:44.097630 7f2b8fe48a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:30:44.097631 7f2b8fe48a80 Options.compaction_filter: None
+2021/03/14-00:30:44.097631 7f2b8fe48a80 Options.compaction_filter_factory: None
+2021/03/14-00:30:44.097632 7f2b8fe48a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:30:44.097633 7f2b8fe48a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:30:44.097646 7f2b8fe48a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2cae520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c93c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:30:44.097647 7f2b8fe48a80 Options.write_buffer_size: 134217728
+2021/03/14-00:30:44.097648 7f2b8fe48a80 Options.max_write_buffer_number: 6
+2021/03/14-00:30:44.097649 7f2b8fe48a80 Options.compression[0]: NoCompression
+2021/03/14-00:30:44.097649 7f2b8fe48a80 Options.compression[1]: NoCompression
+2021/03/14-00:30:44.097650 7f2b8fe48a80 Options.compression[2]: Snappy
+2021/03/14-00:30:44.097651 7f2b8fe48a80 Options.compression[3]: Snappy
+2021/03/14-00:30:44.097651 7f2b8fe48a80 Options.compression[4]: Snappy
+2021/03/14-00:30:44.097652 7f2b8fe48a80 Options.compression[5]: Snappy
+2021/03/14-00:30:44.097652 7f2b8fe48a80 Options.compression[6]: Snappy
+2021/03/14-00:30:44.097653 7f2b8fe48a80 Options.bottommost_compression: Disabled
+2021/03/14-00:30:44.097654 7f2b8fe48a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:30:44.097654 7f2b8fe48a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:30:44.097655 7f2b8fe48a80 Options.num_levels: 7
+2021/03/14-00:30:44.097656 7f2b8fe48a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:30:44.097656 7f2b8fe48a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:30:44.097657 7f2b8fe48a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:30:44.097657 7f2b8fe48a80 Options.compression_opts.level: -1
+2021/03/14-00:30:44.097658 7f2b8fe48a80 Options.compression_opts.strategy: 0
+2021/03/14-00:30:44.097658 7f2b8fe48a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:30:44.097659 7f2b8fe48a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:30:44.097660 7f2b8fe48a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:30:44.097660 7f2b8fe48a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:30:44.097661 7f2b8fe48a80 Options.target_file_size_base: 67108864
+2021/03/14-00:30:44.097661 7f2b8fe48a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:30:44.097662 7f2b8fe48a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:30:44.097663 7f2b8fe48a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:30:44.097663 7f2b8fe48a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:30:44.097665 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:30:44.097672 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:30:44.097673 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:30:44.097673 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:30:44.097674 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:30:44.097674 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:30:44.097675 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:30:44.097675 7f2b8fe48a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:30:44.097676 7f2b8fe48a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:30:44.097677 7f2b8fe48a80 Options.arena_block_size: 16777216
+2021/03/14-00:30:44.097677 7f2b8fe48a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:30:44.097678 7f2b8fe48a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:30:44.097678 7f2b8fe48a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:30:44.097679 7f2b8fe48a80 Options.disable_auto_compactions: 0
+2021/03/14-00:30:44.097681 7f2b8fe48a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:30:44.097682 7f2b8fe48a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:30:44.097682 7f2b8fe48a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:30:44.097683 7f2b8fe48a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:30:44.097683 7f2b8fe48a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:30:44.097684 7f2b8fe48a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:30:44.097684 7f2b8fe48a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:30:44.097685 7f2b8fe48a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:30:44.097686 7f2b8fe48a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:30:44.097686 7f2b8fe48a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:30:44.097687 7f2b8fe48a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:30:44.097688 7f2b8fe48a80 Options.table_properties_collectors:
+2021/03/14-00:30:44.097688 7f2b8fe48a80 Options.inplace_update_support: 0
+2021/03/14-00:30:44.097689 7f2b8fe48a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:30:44.097689 7f2b8fe48a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:30:44.097690 7f2b8fe48a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:30:44.097691 7f2b8fe48a80 Options.bloom_locality: 0
+2021/03/14-00:30:44.097691 7f2b8fe48a80 Options.max_successive_merges: 0
+2021/03/14-00:30:44.097692 7f2b8fe48a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:30:44.097692 7f2b8fe48a80 Options.paranoid_file_checks: 0
+2021/03/14-00:30:44.097693 7f2b8fe48a80 Options.force_consistency_checks: 0
+2021/03/14-00:30:44.097693 7f2b8fe48a80 Options.report_bg_io_stats: 0
+2021/03/14-00:30:44.098091 7f2b8fe48a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:30:44.098094 7f2b8fe48a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:30:44.098195 7f2b8fe48a80 EVENT_LOG_v1 {"time_micros": 1615678244098184, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:30:44.098200 7f2b8fe48a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:30:44.781437 7f2b8fe48a80 EVENT_LOG_v1 {"time_micros": 1615678244781433, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678252589886 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678252589886
new file mode 100644
index 0000000..927a7c3
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678252589886
@@ -0,0 +1,186 @@
+2021/03/14-00:30:44.793960 7f2b8fe48a80 RocksDB version: 5.11.3
+2021/03/14-00:30:44.794016 7f2b8fe48a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:30:44.794017 7f2b8fe48a80 Compile date Mar 13 2021
+2021/03/14-00:30:44.794022 7f2b8fe48a80 DB SUMMARY
+2021/03/14-00:30:44.794109 7f2b8fe48a80 CURRENT file: CURRENT
+2021/03/14-00:30:44.794110 7f2b8fe48a80 IDENTITY file: IDENTITY
+2021/03/14-00:30:44.794119 7f2b8fe48a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:30:44.794120 7f2b8fe48a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:30:44.794121 7f2b8fe48a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:30:44.794126 7f2b8fe48a80 Options.error_if_exists: 0
+2021/03/14-00:30:44.794127 7f2b8fe48a80 Options.create_if_missing: 1
+2021/03/14-00:30:44.794127 7f2b8fe48a80 Options.paranoid_checks: 1
+2021/03/14-00:30:44.794128 7f2b8fe48a80 Options.env: 0x7f2b90802080
+2021/03/14-00:30:44.794128 7f2b8fe48a80 Options.info_log: 0x2cb6ca0
+2021/03/14-00:30:44.794129 7f2b8fe48a80 Options.max_file_opening_threads: 16
+2021/03/14-00:30:44.794130 7f2b8fe48a80 Options.statistics: (nil)
+2021/03/14-00:30:44.794130 7f2b8fe48a80 Options.use_fsync: 0
+2021/03/14-00:30:44.794131 7f2b8fe48a80 Options.max_log_file_size: 0
+2021/03/14-00:30:44.794132 7f2b8fe48a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:30:44.794132 7f2b8fe48a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:30:44.794133 7f2b8fe48a80 Options.keep_log_file_num: 1000
+2021/03/14-00:30:44.794133 7f2b8fe48a80 Options.recycle_log_file_num: 0
+2021/03/14-00:30:44.794134 7f2b8fe48a80 Options.allow_fallocate: 1
+2021/03/14-00:30:44.794135 7f2b8fe48a80 Options.allow_mmap_reads: 0
+2021/03/14-00:30:44.794135 7f2b8fe48a80 Options.allow_mmap_writes: 0
+2021/03/14-00:30:44.794136 7f2b8fe48a80 Options.use_direct_reads: 0
+2021/03/14-00:30:44.794136 7f2b8fe48a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:30:44.794137 7f2b8fe48a80 Options.create_missing_column_families: 0
+2021/03/14-00:30:44.794137 7f2b8fe48a80 Options.db_log_dir:
+2021/03/14-00:30:44.794138 7f2b8fe48a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:30:44.794139 7f2b8fe48a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:30:44.794139 7f2b8fe48a80 Options.max_subcompactions: 1
+2021/03/14-00:30:44.794140 7f2b8fe48a80 Options.max_background_flushes: -1
+2021/03/14-00:30:44.794140 7f2b8fe48a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:30:44.794141 7f2b8fe48a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:30:44.794141 7f2b8fe48a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:30:44.794142 7f2b8fe48a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:30:44.794143 7f2b8fe48a80 Options.advise_random_on_open: 1
+2021/03/14-00:30:44.794143 7f2b8fe48a80 Options.db_write_buffer_size: 0
+2021/03/14-00:30:44.794144 7f2b8fe48a80 Options.write_buffer_manager: 0x2c9eb90
+2021/03/14-00:30:44.794144 7f2b8fe48a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:30:44.794145 7f2b8fe48a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:30:44.794145 7f2b8fe48a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:30:44.794146 7f2b8fe48a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:30:44.794147 7f2b8fe48a80 Options.rate_limiter: (nil)
+2021/03/14-00:30:44.794148 7f2b8fe48a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:30:44.794155 7f2b8fe48a80 Options.wal_recovery_mode: 2
+2021/03/14-00:30:44.794156 7f2b8fe48a80 Options.enable_thread_tracking: 0
+2021/03/14-00:30:44.794157 7f2b8fe48a80 Options.enable_pipelined_write: 0
+2021/03/14-00:30:44.794157 7f2b8fe48a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:30:44.794158 7f2b8fe48a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:30:44.794158 7f2b8fe48a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:30:44.794159 7f2b8fe48a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:30:44.794160 7f2b8fe48a80 Options.row_cache: None
+2021/03/14-00:30:44.794160 7f2b8fe48a80 Options.wal_filter: None
+2021/03/14-00:30:44.794161 7f2b8fe48a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:30:44.794161 7f2b8fe48a80 Options.allow_ingest_behind: 0
+2021/03/14-00:30:44.794162 7f2b8fe48a80 Options.preserve_deletes: 0
+2021/03/14-00:30:44.794162 7f2b8fe48a80 Options.two_write_queues: 0
+2021/03/14-00:30:44.794163 7f2b8fe48a80 Options.manual_wal_flush: 0
+2021/03/14-00:30:44.794164 7f2b8fe48a80 Options.max_background_jobs: 16
+2021/03/14-00:30:44.794165 7f2b8fe48a80 Options.max_background_compactions: -1
+2021/03/14-00:30:44.794165 7f2b8fe48a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:30:44.794166 7f2b8fe48a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:30:44.794166 7f2b8fe48a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:30:44.794167 7f2b8fe48a80 Options.max_total_wal_size: 0
+2021/03/14-00:30:44.794167 7f2b8fe48a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:30:44.794168 7f2b8fe48a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:30:44.794169 7f2b8fe48a80 Options.max_open_files: -1
+2021/03/14-00:30:44.794169 7f2b8fe48a80 Options.bytes_per_sync: 0
+2021/03/14-00:30:44.794170 7f2b8fe48a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:30:44.794170 7f2b8fe48a80 Options.compaction_readahead_size: 0
+2021/03/14-00:30:44.794171 7f2b8fe48a80 Compression algorithms supported:
+2021/03/14-00:30:44.794171 7f2b8fe48a80 Snappy supported: 1
+2021/03/14-00:30:44.794172 7f2b8fe48a80 Zlib supported: 1
+2021/03/14-00:30:44.794173 7f2b8fe48a80 Bzip supported: 1
+2021/03/14-00:30:44.794173 7f2b8fe48a80 LZ4 supported: 1
+2021/03/14-00:30:44.794174 7f2b8fe48a80 ZSTDNotFinal supported: 1
+2021/03/14-00:30:44.794177 7f2b8fe48a80 ZSTD supported: 1
+2021/03/14-00:30:44.794180 7f2b8fe48a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:30:44.794182 7f2b8fe48a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:30:44.794290 7f2b8fe48a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:30:44.794343 7f2b8fe48a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:30:44.794345 7f2b8fe48a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:30:44.794345 7f2b8fe48a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:30:44.794346 7f2b8fe48a80 Options.compaction_filter: None
+2021/03/14-00:30:44.794346 7f2b8fe48a80 Options.compaction_filter_factory: None
+2021/03/14-00:30:44.794347 7f2b8fe48a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:30:44.794348 7f2b8fe48a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:30:44.794361 7f2b8fe48a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2cae520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c93c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:30:44.794362 7f2b8fe48a80 Options.write_buffer_size: 134217728
+2021/03/14-00:30:44.794363 7f2b8fe48a80 Options.max_write_buffer_number: 6
+2021/03/14-00:30:44.794363 7f2b8fe48a80 Options.compression[0]: NoCompression
+2021/03/14-00:30:44.794364 7f2b8fe48a80 Options.compression[1]: NoCompression
+2021/03/14-00:30:44.794365 7f2b8fe48a80 Options.compression[2]: Snappy
+2021/03/14-00:30:44.794365 7f2b8fe48a80 Options.compression[3]: Snappy
+2021/03/14-00:30:44.794366 7f2b8fe48a80 Options.compression[4]: Snappy
+2021/03/14-00:30:44.794367 7f2b8fe48a80 Options.compression[5]: Snappy
+2021/03/14-00:30:44.794367 7f2b8fe48a80 Options.compression[6]: Snappy
+2021/03/14-00:30:44.794368 7f2b8fe48a80 Options.bottommost_compression: Disabled
+2021/03/14-00:30:44.794369 7f2b8fe48a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:30:44.794369 7f2b8fe48a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:30:44.794370 7f2b8fe48a80 Options.num_levels: 7
+2021/03/14-00:30:44.794370 7f2b8fe48a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:30:44.794371 7f2b8fe48a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:30:44.794372 7f2b8fe48a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:30:44.794372 7f2b8fe48a80 Options.compression_opts.level: -1
+2021/03/14-00:30:44.794373 7f2b8fe48a80 Options.compression_opts.strategy: 0
+2021/03/14-00:30:44.794373 7f2b8fe48a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:30:44.794374 7f2b8fe48a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:30:44.794374 7f2b8fe48a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:30:44.794375 7f2b8fe48a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:30:44.794375 7f2b8fe48a80 Options.target_file_size_base: 67108864
+2021/03/14-00:30:44.794376 7f2b8fe48a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:30:44.794377 7f2b8fe48a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:30:44.794377 7f2b8fe48a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:30:44.794378 7f2b8fe48a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:30:44.794379 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:30:44.794388 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:30:44.794389 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:30:44.794389 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:30:44.794390 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:30:44.794391 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:30:44.794391 7f2b8fe48a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:30:44.794392 7f2b8fe48a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:30:44.794392 7f2b8fe48a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:30:44.794393 7f2b8fe48a80 Options.arena_block_size: 16777216
+2021/03/14-00:30:44.794393 7f2b8fe48a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:30:44.794394 7f2b8fe48a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:30:44.794395 7f2b8fe48a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:30:44.794395 7f2b8fe48a80 Options.disable_auto_compactions: 0
+2021/03/14-00:30:44.794397 7f2b8fe48a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:30:44.794397 7f2b8fe48a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:30:44.794398 7f2b8fe48a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:30:44.794399 7f2b8fe48a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:30:44.794399 7f2b8fe48a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:30:44.794400 7f2b8fe48a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:30:44.794400 7f2b8fe48a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:30:44.794401 7f2b8fe48a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:30:44.794402 7f2b8fe48a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:30:44.794402 7f2b8fe48a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:30:44.794403 7f2b8fe48a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:30:44.794404 7f2b8fe48a80 Options.table_properties_collectors:
+2021/03/14-00:30:44.794404 7f2b8fe48a80 Options.inplace_update_support: 0
+2021/03/14-00:30:44.794405 7f2b8fe48a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:30:44.794405 7f2b8fe48a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:30:44.794406 7f2b8fe48a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:30:44.794407 7f2b8fe48a80 Options.bloom_locality: 0
+2021/03/14-00:30:44.794407 7f2b8fe48a80 Options.max_successive_merges: 0
+2021/03/14-00:30:44.794408 7f2b8fe48a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:30:44.794408 7f2b8fe48a80 Options.paranoid_file_checks: 0
+2021/03/14-00:30:44.794409 7f2b8fe48a80 Options.force_consistency_checks: 0
+2021/03/14-00:30:44.794409 7f2b8fe48a80 Options.report_bg_io_stats: 0
+2021/03/14-00:30:44.794792 7f2b8fe48a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:30:44.794794 7f2b8fe48a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:30:44.794894 7f2b8fe48a80 EVENT_LOG_v1 {"time_micros": 1615678244794884, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:30:44.794900 7f2b8fe48a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:30:45.474947 7f2b8fe48a80 EVENT_LOG_v1 {"time_micros": 1615678245474943, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678253292515 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678253292515
new file mode 100644
index 0000000..55dfe42
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678253292515
@@ -0,0 +1,186 @@
+2021/03/14-00:30:52.590467 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:30:52.590525 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:30:52.590527 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:30:52.590530 7ffff7156a80 DB SUMMARY
+2021/03/14-00:30:52.590619 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:30:52.590620 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:30:52.590629 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:30:52.590630 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:30:52.590631 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:30:52.590636 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:30:52.590637 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:30:52.590638 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:30:52.590639 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:30:52.590639 7ffff7156a80 Options.info_log: 0xfb2fa0
+2021/03/14-00:30:52.590640 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:30:52.590640 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:30:52.590641 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:30:52.590642 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:30:52.590642 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:30:52.590643 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:30:52.590644 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:30:52.590644 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:30:52.590645 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:30:52.590646 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:30:52.590646 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:30:52.590647 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:30:52.590647 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:30:52.590648 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:30:52.590649 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:30:52.590649 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:30:52.590650 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:30:52.590650 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:30:52.590651 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:30:52.590652 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:30:52.590652 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:30:52.590653 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:30:52.590653 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:30:52.590654 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:30:52.590655 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:30:52.590655 7ffff7156a80 Options.write_buffer_manager: 0xf9aeb0
+2021/03/14-00:30:52.590656 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:30:52.590656 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:30:52.590657 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:30:52.590657 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:30:52.590658 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:30:52.590659 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:30:52.590667 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:30:52.590668 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:30:52.590669 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:30:52.590669 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:30:52.590670 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:30:52.590670 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:30:52.590671 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:30:52.590672 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:30:52.590672 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:30:52.590673 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:30:52.590673 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:30:52.590674 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:30:52.590675 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:30:52.590675 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:30:52.590676 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:30:52.590677 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:30:52.590677 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:30:52.590678 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:30:52.590679 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:30:52.590679 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:30:52.590680 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:30:52.590681 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:30:52.590681 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:30:52.590682 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:30:52.590682 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:30:52.590683 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:30:52.590683 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:30:52.590684 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:30:52.590685 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:30:52.590685 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:30:52.590686 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:30:52.590686 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:30:52.590688 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:30:52.590692 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:30:52.590693 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:30:52.590790 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:30:52.590842 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:30:52.590844 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:30:52.590845 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:30:52.590846 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:30:52.590846 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:30:52.590847 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:30:52.590848 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:30:52.590862 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfaa840)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xf8ff40
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:30:52.590863 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:30:52.590863 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:30:52.590864 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:30:52.590865 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:30:52.590865 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:30:52.590866 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:30:52.590867 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:30:52.590867 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:30:52.590868 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:30:52.590868 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:30:52.590869 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:30:52.590870 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:30:52.590870 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:30:52.590871 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:30:52.590872 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:30:52.590872 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:30:52.590873 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:30:52.590873 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:30:52.590874 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:30:52.590875 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:30:52.590875 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:30:52.590876 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:30:52.590876 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:30:52.590877 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:30:52.590878 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:30:52.590878 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:30:52.590879 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:30:52.590880 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:30:52.590888 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:30:52.590889 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:30:52.590890 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:30:52.590890 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:30:52.590891 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:30:52.590892 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:30:52.590892 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:30:52.590893 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:30:52.590893 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:30:52.590894 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:30:52.590895 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:30:52.590895 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:30:52.590896 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:30:52.590897 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:30:52.590898 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:30:52.590898 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:30:52.590899 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:30:52.590899 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:30:52.590900 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:30:52.590901 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:30:52.590901 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:30:52.590902 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:30:52.590902 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:30:52.590903 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:30:52.590904 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:30:52.590904 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:30:52.590905 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:30:52.590905 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:30:52.590906 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:30:52.590907 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:30:52.590907 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:30:52.590908 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:30:52.590909 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:30:52.590909 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:30:52.590910 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:30:52.592287 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:30:52.592291 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:30:52.592390 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678252592382, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:30:52.592396 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:30:53.285683 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678253979383 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678253979383
new file mode 100644
index 0000000..06f8ef4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678253979383
@@ -0,0 +1,186 @@
+2021/03/14-00:30:53.292985 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:30:53.293012 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:30:53.293013 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:30:53.293015 7ffff7156a80 DB SUMMARY
+2021/03/14-00:30:53.293096 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:30:53.293097 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:30:53.293105 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:30:53.293106 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:30:53.293107 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:30:53.293112 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:30:53.293112 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:30:53.293113 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:30:53.293114 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:30:53.293114 7ffff7156a80 Options.info_log: 0xfc6b60
+2021/03/14-00:30:53.293115 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:30:53.293115 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:30:53.293116 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:30:53.293117 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:30:53.293117 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:30:53.293118 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:30:53.293118 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:30:53.293119 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:30:53.293120 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:30:53.293120 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:30:53.293121 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:30:53.293121 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:30:53.293122 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:30:53.293122 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:30:53.293123 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:30:53.293124 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:30:53.293124 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:30:53.293125 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:30:53.293125 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:30:53.293126 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:30:53.293126 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:30:53.293127 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:30:53.293128 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:30:53.293128 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:30:53.293129 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:30:53.293129 7ffff7156a80 Options.write_buffer_manager: 0xfc6a60
+2021/03/14-00:30:53.293130 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:30:53.293130 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:30:53.293131 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:30:53.293131 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:30:53.293132 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:30:53.293133 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:30:53.293140 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:30:53.293141 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:30:53.293141 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:30:53.293142 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:30:53.293142 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:30:53.293143 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:30:53.293143 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:30:53.293144 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:30:53.293144 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:30:53.293145 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:30:53.293146 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:30:53.293146 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:30:53.293147 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:30:53.293147 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:30:53.293148 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:30:53.293148 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:30:53.293149 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:30:53.293149 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:30:53.293150 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:30:53.293151 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:30:53.293151 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:30:53.293152 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:30:53.293152 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:30:53.293153 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:30:53.293153 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:30:53.293154 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:30:53.293154 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:30:53.293155 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:30:53.293156 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:30:53.293156 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:30:53.293157 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:30:53.293157 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:30:53.293158 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:30:53.293159 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:30:53.293160 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:30:53.293222 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:30:53.293268 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:30:53.293270 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:30:53.293271 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:30:53.293271 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:30:53.293272 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:30:53.293273 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:30:53.293273 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:30:53.293288 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfc8230)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xfc9450
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:30:53.293288 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:30:53.293289 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:30:53.293290 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:30:53.293290 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:30:53.293291 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:30:53.293292 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:30:53.293292 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:30:53.293293 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:30:53.293293 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:30:53.293294 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:30:53.293295 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:30:53.293295 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:30:53.293296 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:30:53.293296 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:30:53.293297 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:30:53.293298 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:30:53.293298 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:30:53.293299 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:30:53.293299 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:30:53.293300 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:30:53.293301 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:30:53.293301 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:30:53.293302 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:30:53.293302 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:30:53.293303 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:30:53.293304 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:30:53.293304 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:30:53.293306 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:30:53.293314 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:30:53.293315 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:30:53.293315 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:30:53.293316 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:30:53.293316 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:30:53.293317 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:30:53.293317 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:30:53.293318 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:30:53.293319 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:30:53.293319 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:30:53.293320 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:30:53.293320 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:30:53.293321 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:30:53.293322 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:30:53.293323 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:30:53.293323 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:30:53.293324 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:30:53.293324 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:30:53.293325 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:30:53.293326 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:30:53.293326 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:30:53.293327 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:30:53.293327 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:30:53.293328 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:30:53.293329 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:30:53.293329 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:30:53.293330 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:30:53.293330 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:30:53.293331 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:30:53.293332 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:30:53.293332 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:30:53.293333 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:30:53.293334 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:30:53.293334 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:30:53.293335 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:30:53.294919 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:30:53.294922 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:30:53.294997 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678253294995, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:30:53.294999 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:30:53.972952 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678254681472 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678254681472
new file mode 100644
index 0000000..8bc2efe
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678254681472
@@ -0,0 +1,186 @@
+2021/03/14-00:30:53.980201 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:30:53.980232 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:30:53.980234 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:30:53.980235 7ffff7156a80 DB SUMMARY
+2021/03/14-00:30:53.980343 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:30:53.980344 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:30:53.980352 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:30:53.980353 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:30:53.980354 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:30:53.980358 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:30:53.980359 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:30:53.980360 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:30:53.980360 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:30:53.980361 7ffff7156a80 Options.info_log: 0xff8190
+2021/03/14-00:30:53.980361 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:30:53.980362 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:30:53.980363 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:30:53.980363 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:30:53.980364 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:30:53.980364 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:30:53.980365 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:30:53.980365 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:30:53.980366 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:30:53.980367 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:30:53.980367 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:30:53.980368 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:30:53.980368 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:30:53.980369 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:30:53.980369 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:30:53.980370 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:30:53.980370 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:30:53.980371 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:30:53.980371 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:30:53.980372 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:30:53.980373 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:30:53.980373 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:30:53.980374 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:30:53.980374 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:30:53.980375 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:30:53.980375 7ffff7156a80 Options.write_buffer_manager: 0xff80e0
+2021/03/14-00:30:53.980376 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:30:53.980376 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:30:53.980377 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:30:53.980378 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:30:53.980378 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:30:53.980379 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:30:53.980387 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:30:53.980387 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:30:53.980388 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:30:53.980388 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:30:53.980389 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:30:53.980389 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:30:53.980390 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:30:53.980391 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:30:53.980391 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:30:53.980392 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:30:53.980392 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:30:53.980393 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:30:53.980393 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:30:53.980394 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:30:53.980394 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:30:53.980395 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:30:53.980395 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:30:53.980396 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:30:53.980396 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:30:53.980397 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:30:53.980398 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:30:53.980398 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:30:53.980399 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:30:53.980399 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:30:53.980400 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:30:53.980400 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:30:53.980401 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:30:53.980401 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:30:53.980402 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:30:53.980403 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:30:53.980403 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:30:53.980404 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:30:53.980404 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:30:53.980406 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:30:53.980407 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:30:53.980473 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:30:53.980510 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:30:53.980512 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:30:53.980512 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:30:53.980513 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:30:53.980514 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:30:53.980514 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:30:53.980515 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:30:53.980529 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xff76a0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xff95a0
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:30:53.980530 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:30:53.980531 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:30:53.980531 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:30:53.980532 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:30:53.980533 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:30:53.980533 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:30:53.980534 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:30:53.980534 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:30:53.980535 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:30:53.980535 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:30:53.980536 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:30:53.980537 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:30:53.980537 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:30:53.980538 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:30:53.980539 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:30:53.980539 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:30:53.980540 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:30:53.980540 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:30:53.980541 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:30:53.980541 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:30:53.980542 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:30:53.980542 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:30:53.980543 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:30:53.980543 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:30:53.980544 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:30:53.980545 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:30:53.980545 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:30:53.980547 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:30:53.980554 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:30:53.980554 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:30:53.980555 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:30:53.980555 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:30:53.980556 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:30:53.980556 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:30:53.980557 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:30:53.980557 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:30:53.980558 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:30:53.980559 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:30:53.980559 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:30:53.980560 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:30:53.980560 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:30:53.980562 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:30:53.980563 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:30:53.980563 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:30:53.980564 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:30:53.980564 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:30:53.980565 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:30:53.980565 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:30:53.980567 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:30:53.980567 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:30:53.980568 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:30:53.980568 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:30:53.980569 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:30:53.980569 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:30:53.980570 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:30:53.980571 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:30:53.980571 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:30:53.980572 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:30:53.980573 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:30:53.980573 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:30:53.980574 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:30:53.980574 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:30:53.980575 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:30:53.982429 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:30:53.982433 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:30:53.982517 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678253982515, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:30:53.982520 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:30:54.674493 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678399435186 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678399435186
new file mode 100644
index 0000000..d160f38
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678399435186
@@ -0,0 +1,186 @@
+2021/03/14-00:30:54.682017 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:30:54.682046 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:30:54.682048 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:30:54.682049 7ffff7156a80 DB SUMMARY
+2021/03/14-00:30:54.682135 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:30:54.682136 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:30:54.682144 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:30:54.682146 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:30:54.682146 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:30:54.682151 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:30:54.682152 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:30:54.682152 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:30:54.682153 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:30:54.682153 7ffff7156a80 Options.info_log: 0x1025e10
+2021/03/14-00:30:54.682154 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:30:54.682155 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:30:54.682155 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:30:54.682156 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:30:54.682156 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:30:54.682157 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:30:54.682158 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:30:54.682158 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:30:54.682159 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:30:54.682159 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:30:54.682160 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:30:54.682160 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:30:54.682161 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:30:54.682162 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:30:54.682162 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:30:54.682163 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:30:54.682163 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:30:54.682164 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:30:54.682164 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:30:54.682165 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:30:54.682165 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:30:54.682166 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:30:54.682167 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:30:54.682167 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:30:54.682168 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:30:54.682168 7ffff7156a80 Options.write_buffer_manager: 0x1045e00
+2021/03/14-00:30:54.682169 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:30:54.682169 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:30:54.682170 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:30:54.682170 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:30:54.682171 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:30:54.682172 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:30:54.682179 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:30:54.682180 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:30:54.682181 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:30:54.682181 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:30:54.682182 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:30:54.682182 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:30:54.682183 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:30:54.682183 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:30:54.682184 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:30:54.682185 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:30:54.682185 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:30:54.682186 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:30:54.682186 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:30:54.682187 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:30:54.682187 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:30:54.682188 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:30:54.682188 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:30:54.682189 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:30:54.682190 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:30:54.682190 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:30:54.682191 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:30:54.682191 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:30:54.682192 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:30:54.682193 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:30:54.682193 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:30:54.682194 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:30:54.682194 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:30:54.682195 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:30:54.682195 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:30:54.682196 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:30:54.682196 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:30:54.682197 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:30:54.682198 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:30:54.682199 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:30:54.682200 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:30:54.682282 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:30:54.682319 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:30:54.682321 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:30:54.682321 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:30:54.682322 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:30:54.682323 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:30:54.682323 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:30:54.682324 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:30:54.682338 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1027fb0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1029370
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:30:54.682339 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:30:54.682339 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:30:54.682340 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:30:54.682341 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:30:54.682341 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:30:54.682342 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:30:54.682343 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:30:54.682343 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:30:54.682344 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:30:54.682344 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:30:54.682345 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:30:54.682346 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:30:54.682346 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:30:54.682347 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:30:54.682347 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:30:54.682348 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:30:54.682348 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:30:54.682349 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:30:54.682349 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:30:54.682350 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:30:54.682351 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:30:54.682351 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:30:54.682352 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:30:54.682352 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:30:54.682353 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:30:54.682353 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:30:54.682354 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:30:54.682355 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:30:54.682365 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:30:54.682366 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:30:54.682367 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:30:54.682367 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:30:54.682368 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:30:54.682368 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:30:54.682369 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:30:54.682369 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:30:54.682370 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:30:54.682371 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:30:54.682371 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:30:54.682372 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:30:54.682372 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:30:54.682373 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:30:54.682374 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:30:54.682375 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:30:54.682375 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:30:54.682376 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:30:54.682376 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:30:54.682377 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:30:54.682377 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:30:54.682378 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:30:54.682379 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:30:54.682379 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:30:54.682380 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:30:54.682380 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:30:54.682381 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:30:54.682381 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:30:54.682382 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:30:54.682383 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:30:54.682383 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:30:54.682384 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:30:54.682384 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:30:54.682385 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:30:54.682385 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:30:54.684126 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:30:54.684130 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:30:54.684209 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678254684207, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:30:54.684211 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:30:55.374456 7ffff7156a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678400142996 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678400142996
new file mode 100644
index 0000000..24ce3cd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678400142996
@@ -0,0 +1,186 @@
+2021/03/14-00:33:19.435680 7fc42ef7aa80 RocksDB version: 5.11.3
+2021/03/14-00:33:19.435753 7fc42ef7aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:33:19.435755 7fc42ef7aa80 Compile date Mar 13 2021
+2021/03/14-00:33:19.435762 7fc42ef7aa80 DB SUMMARY
+2021/03/14-00:33:19.435868 7fc42ef7aa80 CURRENT file: CURRENT
+2021/03/14-00:33:19.435869 7fc42ef7aa80 IDENTITY file: IDENTITY
+2021/03/14-00:33:19.435879 7fc42ef7aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:33:19.435880 7fc42ef7aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:33:19.435881 7fc42ef7aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:33:19.435887 7fc42ef7aa80 Options.error_if_exists: 0
+2021/03/14-00:33:19.435888 7fc42ef7aa80 Options.create_if_missing: 1
+2021/03/14-00:33:19.435889 7fc42ef7aa80 Options.paranoid_checks: 1
+2021/03/14-00:33:19.435890 7fc42ef7aa80 Options.env: 0x7fc42f934080
+2021/03/14-00:33:19.435890 7fc42ef7aa80 Options.info_log: 0x2980ca0
+2021/03/14-00:33:19.435891 7fc42ef7aa80 Options.max_file_opening_threads: 16
+2021/03/14-00:33:19.435892 7fc42ef7aa80 Options.statistics: (nil)
+2021/03/14-00:33:19.435893 7fc42ef7aa80 Options.use_fsync: 0
+2021/03/14-00:33:19.435893 7fc42ef7aa80 Options.max_log_file_size: 0
+2021/03/14-00:33:19.435894 7fc42ef7aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:33:19.435895 7fc42ef7aa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:33:19.435895 7fc42ef7aa80 Options.keep_log_file_num: 1000
+2021/03/14-00:33:19.435896 7fc42ef7aa80 Options.recycle_log_file_num: 0
+2021/03/14-00:33:19.435897 7fc42ef7aa80 Options.allow_fallocate: 1
+2021/03/14-00:33:19.435897 7fc42ef7aa80 Options.allow_mmap_reads: 0
+2021/03/14-00:33:19.435898 7fc42ef7aa80 Options.allow_mmap_writes: 0
+2021/03/14-00:33:19.435899 7fc42ef7aa80 Options.use_direct_reads: 0
+2021/03/14-00:33:19.435899 7fc42ef7aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:33:19.435900 7fc42ef7aa80 Options.create_missing_column_families: 0
+2021/03/14-00:33:19.435901 7fc42ef7aa80 Options.db_log_dir:
+2021/03/14-00:33:19.435901 7fc42ef7aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:33:19.435902 7fc42ef7aa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:33:19.435903 7fc42ef7aa80 Options.max_subcompactions: 1
+2021/03/14-00:33:19.435903 7fc42ef7aa80 Options.max_background_flushes: -1
+2021/03/14-00:33:19.435904 7fc42ef7aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:33:19.435905 7fc42ef7aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:33:19.435905 7fc42ef7aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:33:19.435906 7fc42ef7aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:33:19.435907 7fc42ef7aa80 Options.advise_random_on_open: 1
+2021/03/14-00:33:19.435907 7fc42ef7aa80 Options.db_write_buffer_size: 0
+2021/03/14-00:33:19.435908 7fc42ef7aa80 Options.write_buffer_manager: 0x2968b90
+2021/03/14-00:33:19.435909 7fc42ef7aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:33:19.435909 7fc42ef7aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:33:19.435910 7fc42ef7aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:33:19.435910 7fc42ef7aa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:33:19.435911 7fc42ef7aa80 Options.rate_limiter: (nil)
+2021/03/14-00:33:19.435913 7fc42ef7aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:33:19.435923 7fc42ef7aa80 Options.wal_recovery_mode: 2
+2021/03/14-00:33:19.435923 7fc42ef7aa80 Options.enable_thread_tracking: 0
+2021/03/14-00:33:19.435924 7fc42ef7aa80 Options.enable_pipelined_write: 0
+2021/03/14-00:33:19.435925 7fc42ef7aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:33:19.435925 7fc42ef7aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:33:19.435926 7fc42ef7aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:33:19.435927 7fc42ef7aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:33:19.435927 7fc42ef7aa80 Options.row_cache: None
+2021/03/14-00:33:19.435928 7fc42ef7aa80 Options.wal_filter: None
+2021/03/14-00:33:19.435929 7fc42ef7aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:33:19.435929 7fc42ef7aa80 Options.allow_ingest_behind: 0
+2021/03/14-00:33:19.435930 7fc42ef7aa80 Options.preserve_deletes: 0
+2021/03/14-00:33:19.435931 7fc42ef7aa80 Options.two_write_queues: 0
+2021/03/14-00:33:19.435931 7fc42ef7aa80 Options.manual_wal_flush: 0
+2021/03/14-00:33:19.435933 7fc42ef7aa80 Options.max_background_jobs: 16
+2021/03/14-00:33:19.435933 7fc42ef7aa80 Options.max_background_compactions: -1
+2021/03/14-00:33:19.435934 7fc42ef7aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:33:19.435935 7fc42ef7aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:33:19.435935 7fc42ef7aa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:33:19.435936 7fc42ef7aa80 Options.max_total_wal_size: 0
+2021/03/14-00:33:19.435937 7fc42ef7aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:33:19.435937 7fc42ef7aa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:33:19.435938 7fc42ef7aa80 Options.max_open_files: -1
+2021/03/14-00:33:19.435939 7fc42ef7aa80 Options.bytes_per_sync: 0
+2021/03/14-00:33:19.435939 7fc42ef7aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:33:19.435940 7fc42ef7aa80 Options.compaction_readahead_size: 0
+2021/03/14-00:33:19.435941 7fc42ef7aa80 Compression algorithms supported:
+2021/03/14-00:33:19.435941 7fc42ef7aa80 Snappy supported: 1
+2021/03/14-00:33:19.435942 7fc42ef7aa80 Zlib supported: 1
+2021/03/14-00:33:19.435943 7fc42ef7aa80 Bzip supported: 1
+2021/03/14-00:33:19.435943 7fc42ef7aa80 LZ4 supported: 1
+2021/03/14-00:33:19.435944 7fc42ef7aa80 ZSTDNotFinal supported: 1
+2021/03/14-00:33:19.435949 7fc42ef7aa80 ZSTD supported: 1
+2021/03/14-00:33:19.435954 7fc42ef7aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:33:19.435955 7fc42ef7aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:33:19.436104 7fc42ef7aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:33:19.436175 7fc42ef7aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:33:19.436178 7fc42ef7aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:33:19.436179 7fc42ef7aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:33:19.436180 7fc42ef7aa80 Options.compaction_filter: None
+2021/03/14-00:33:19.436180 7fc42ef7aa80 Options.compaction_filter_factory: None
+2021/03/14-00:33:19.436181 7fc42ef7aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:33:19.436182 7fc42ef7aa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:33:19.436198 7fc42ef7aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2978520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x295dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:33:19.436199 7fc42ef7aa80 Options.write_buffer_size: 134217728
+2021/03/14-00:33:19.436200 7fc42ef7aa80 Options.max_write_buffer_number: 6
+2021/03/14-00:33:19.436201 7fc42ef7aa80 Options.compression[0]: NoCompression
+2021/03/14-00:33:19.436202 7fc42ef7aa80 Options.compression[1]: NoCompression
+2021/03/14-00:33:19.436202 7fc42ef7aa80 Options.compression[2]: Snappy
+2021/03/14-00:33:19.436203 7fc42ef7aa80 Options.compression[3]: Snappy
+2021/03/14-00:33:19.436204 7fc42ef7aa80 Options.compression[4]: Snappy
+2021/03/14-00:33:19.436204 7fc42ef7aa80 Options.compression[5]: Snappy
+2021/03/14-00:33:19.436205 7fc42ef7aa80 Options.compression[6]: Snappy
+2021/03/14-00:33:19.436206 7fc42ef7aa80 Options.bottommost_compression: Disabled
+2021/03/14-00:33:19.436207 7fc42ef7aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:33:19.436207 7fc42ef7aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:33:19.436208 7fc42ef7aa80 Options.num_levels: 7
+2021/03/14-00:33:19.436209 7fc42ef7aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:33:19.436209 7fc42ef7aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:33:19.436210 7fc42ef7aa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:33:19.436211 7fc42ef7aa80 Options.compression_opts.level: -1
+2021/03/14-00:33:19.436212 7fc42ef7aa80 Options.compression_opts.strategy: 0
+2021/03/14-00:33:19.436212 7fc42ef7aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:33:19.436213 7fc42ef7aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:33:19.436214 7fc42ef7aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:33:19.436214 7fc42ef7aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:33:19.436215 7fc42ef7aa80 Options.target_file_size_base: 67108864
+2021/03/14-00:33:19.436216 7fc42ef7aa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:33:19.436216 7fc42ef7aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:33:19.436217 7fc42ef7aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:33:19.436218 7fc42ef7aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:33:19.436219 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:33:19.436228 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:33:19.436229 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:33:19.436230 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:33:19.436231 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:33:19.436231 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:33:19.436232 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:33:19.436232 7fc42ef7aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:33:19.436233 7fc42ef7aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:33:19.436234 7fc42ef7aa80 Options.arena_block_size: 16777216
+2021/03/14-00:33:19.436235 7fc42ef7aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:33:19.436235 7fc42ef7aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:33:19.436236 7fc42ef7aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:33:19.436237 7fc42ef7aa80 Options.disable_auto_compactions: 0
+2021/03/14-00:33:19.436248 7fc42ef7aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:33:19.436249 7fc42ef7aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:33:19.436250 7fc42ef7aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:33:19.436251 7fc42ef7aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:33:19.436251 7fc42ef7aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:33:19.436252 7fc42ef7aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:33:19.436253 7fc42ef7aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:33:19.436254 7fc42ef7aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:33:19.436254 7fc42ef7aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:33:19.436255 7fc42ef7aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:33:19.436256 7fc42ef7aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:33:19.436256 7fc42ef7aa80 Options.table_properties_collectors:
+2021/03/14-00:33:19.436257 7fc42ef7aa80 Options.inplace_update_support: 0
+2021/03/14-00:33:19.436258 7fc42ef7aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:33:19.436258 7fc42ef7aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:33:19.436259 7fc42ef7aa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:33:19.436260 7fc42ef7aa80 Options.bloom_locality: 0
+2021/03/14-00:33:19.436261 7fc42ef7aa80 Options.max_successive_merges: 0
+2021/03/14-00:33:19.436261 7fc42ef7aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:33:19.436262 7fc42ef7aa80 Options.paranoid_file_checks: 0
+2021/03/14-00:33:19.436263 7fc42ef7aa80 Options.force_consistency_checks: 0
+2021/03/14-00:33:19.436263 7fc42ef7aa80 Options.report_bg_io_stats: 0
+2021/03/14-00:33:19.436783 7fc42ef7aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:33:19.436786 7fc42ef7aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:33:19.436917 7fc42ef7aa80 EVENT_LOG_v1 {"time_micros": 1615678399436902, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:33:19.436924 7fc42ef7aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:33:20.130842 7fc42ef7aa80 EVENT_LOG_v1 {"time_micros": 1615678400130838, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678400830178 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678400830178
new file mode 100644
index 0000000..a6ce1e9
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678400830178
@@ -0,0 +1,186 @@
+2021/03/14-00:33:20.143360 7fc42ef7aa80 RocksDB version: 5.11.3
+2021/03/14-00:33:20.143414 7fc42ef7aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:33:20.143416 7fc42ef7aa80 Compile date Mar 13 2021
+2021/03/14-00:33:20.143421 7fc42ef7aa80 DB SUMMARY
+2021/03/14-00:33:20.143510 7fc42ef7aa80 CURRENT file: CURRENT
+2021/03/14-00:33:20.143511 7fc42ef7aa80 IDENTITY file: IDENTITY
+2021/03/14-00:33:20.143520 7fc42ef7aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:33:20.143521 7fc42ef7aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:33:20.143522 7fc42ef7aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:33:20.143527 7fc42ef7aa80 Options.error_if_exists: 0
+2021/03/14-00:33:20.143528 7fc42ef7aa80 Options.create_if_missing: 1
+2021/03/14-00:33:20.143528 7fc42ef7aa80 Options.paranoid_checks: 1
+2021/03/14-00:33:20.143529 7fc42ef7aa80 Options.env: 0x7fc42f934080
+2021/03/14-00:33:20.143530 7fc42ef7aa80 Options.info_log: 0x2980ca0
+2021/03/14-00:33:20.143530 7fc42ef7aa80 Options.max_file_opening_threads: 16
+2021/03/14-00:33:20.143531 7fc42ef7aa80 Options.statistics: (nil)
+2021/03/14-00:33:20.143531 7fc42ef7aa80 Options.use_fsync: 0
+2021/03/14-00:33:20.143532 7fc42ef7aa80 Options.max_log_file_size: 0
+2021/03/14-00:33:20.143533 7fc42ef7aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:33:20.143533 7fc42ef7aa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:33:20.143534 7fc42ef7aa80 Options.keep_log_file_num: 1000
+2021/03/14-00:33:20.143534 7fc42ef7aa80 Options.recycle_log_file_num: 0
+2021/03/14-00:33:20.143535 7fc42ef7aa80 Options.allow_fallocate: 1
+2021/03/14-00:33:20.143536 7fc42ef7aa80 Options.allow_mmap_reads: 0
+2021/03/14-00:33:20.143536 7fc42ef7aa80 Options.allow_mmap_writes: 0
+2021/03/14-00:33:20.143537 7fc42ef7aa80 Options.use_direct_reads: 0
+2021/03/14-00:33:20.143537 7fc42ef7aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:33:20.143538 7fc42ef7aa80 Options.create_missing_column_families: 0
+2021/03/14-00:33:20.143538 7fc42ef7aa80 Options.db_log_dir:
+2021/03/14-00:33:20.143539 7fc42ef7aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:33:20.143539 7fc42ef7aa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:33:20.143540 7fc42ef7aa80 Options.max_subcompactions: 1
+2021/03/14-00:33:20.143541 7fc42ef7aa80 Options.max_background_flushes: -1
+2021/03/14-00:33:20.143541 7fc42ef7aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:33:20.143542 7fc42ef7aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:33:20.143542 7fc42ef7aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:33:20.143543 7fc42ef7aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:33:20.143544 7fc42ef7aa80 Options.advise_random_on_open: 1
+2021/03/14-00:33:20.143544 7fc42ef7aa80 Options.db_write_buffer_size: 0
+2021/03/14-00:33:20.143545 7fc42ef7aa80 Options.write_buffer_manager: 0x2968b90
+2021/03/14-00:33:20.143545 7fc42ef7aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:33:20.143546 7fc42ef7aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:33:20.143546 7fc42ef7aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:33:20.143547 7fc42ef7aa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:33:20.143547 7fc42ef7aa80 Options.rate_limiter: (nil)
+2021/03/14-00:33:20.143549 7fc42ef7aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:33:20.143556 7fc42ef7aa80 Options.wal_recovery_mode: 2
+2021/03/14-00:33:20.143557 7fc42ef7aa80 Options.enable_thread_tracking: 0
+2021/03/14-00:33:20.143558 7fc42ef7aa80 Options.enable_pipelined_write: 0
+2021/03/14-00:33:20.143558 7fc42ef7aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:33:20.143559 7fc42ef7aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:33:20.143559 7fc42ef7aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:33:20.143560 7fc42ef7aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:33:20.143561 7fc42ef7aa80 Options.row_cache: None
+2021/03/14-00:33:20.143561 7fc42ef7aa80 Options.wal_filter: None
+2021/03/14-00:33:20.143562 7fc42ef7aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:33:20.143562 7fc42ef7aa80 Options.allow_ingest_behind: 0
+2021/03/14-00:33:20.143563 7fc42ef7aa80 Options.preserve_deletes: 0
+2021/03/14-00:33:20.143563 7fc42ef7aa80 Options.two_write_queues: 0
+2021/03/14-00:33:20.143564 7fc42ef7aa80 Options.manual_wal_flush: 0
+2021/03/14-00:33:20.143565 7fc42ef7aa80 Options.max_background_jobs: 16
+2021/03/14-00:33:20.143566 7fc42ef7aa80 Options.max_background_compactions: -1
+2021/03/14-00:33:20.143566 7fc42ef7aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:33:20.143567 7fc42ef7aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:33:20.143567 7fc42ef7aa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:33:20.143568 7fc42ef7aa80 Options.max_total_wal_size: 0
+2021/03/14-00:33:20.143569 7fc42ef7aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:33:20.143569 7fc42ef7aa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:33:20.143570 7fc42ef7aa80 Options.max_open_files: -1
+2021/03/14-00:33:20.143570 7fc42ef7aa80 Options.bytes_per_sync: 0
+2021/03/14-00:33:20.143571 7fc42ef7aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:33:20.143571 7fc42ef7aa80 Options.compaction_readahead_size: 0
+2021/03/14-00:33:20.143572 7fc42ef7aa80 Compression algorithms supported:
+2021/03/14-00:33:20.143573 7fc42ef7aa80 Snappy supported: 1
+2021/03/14-00:33:20.143573 7fc42ef7aa80 Zlib supported: 1
+2021/03/14-00:33:20.143574 7fc42ef7aa80 Bzip supported: 1
+2021/03/14-00:33:20.143574 7fc42ef7aa80 LZ4 supported: 1
+2021/03/14-00:33:20.143575 7fc42ef7aa80 ZSTDNotFinal supported: 1
+2021/03/14-00:33:20.143579 7fc42ef7aa80 ZSTD supported: 1
+2021/03/14-00:33:20.143582 7fc42ef7aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:33:20.143583 7fc42ef7aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:33:20.143670 7fc42ef7aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:33:20.143725 7fc42ef7aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:33:20.143727 7fc42ef7aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:33:20.143727 7fc42ef7aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:33:20.143728 7fc42ef7aa80 Options.compaction_filter: None
+2021/03/14-00:33:20.143729 7fc42ef7aa80 Options.compaction_filter_factory: None
+2021/03/14-00:33:20.143729 7fc42ef7aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:33:20.143730 7fc42ef7aa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:33:20.143744 7fc42ef7aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2978520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x295dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:33:20.143744 7fc42ef7aa80 Options.write_buffer_size: 134217728
+2021/03/14-00:33:20.143745 7fc42ef7aa80 Options.max_write_buffer_number: 6
+2021/03/14-00:33:20.143746 7fc42ef7aa80 Options.compression[0]: NoCompression
+2021/03/14-00:33:20.143746 7fc42ef7aa80 Options.compression[1]: NoCompression
+2021/03/14-00:33:20.143747 7fc42ef7aa80 Options.compression[2]: Snappy
+2021/03/14-00:33:20.143748 7fc42ef7aa80 Options.compression[3]: Snappy
+2021/03/14-00:33:20.143748 7fc42ef7aa80 Options.compression[4]: Snappy
+2021/03/14-00:33:20.143749 7fc42ef7aa80 Options.compression[5]: Snappy
+2021/03/14-00:33:20.143749 7fc42ef7aa80 Options.compression[6]: Snappy
+2021/03/14-00:33:20.143750 7fc42ef7aa80 Options.bottommost_compression: Disabled
+2021/03/14-00:33:20.143751 7fc42ef7aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:33:20.143752 7fc42ef7aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:33:20.143752 7fc42ef7aa80 Options.num_levels: 7
+2021/03/14-00:33:20.143753 7fc42ef7aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:33:20.143753 7fc42ef7aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:33:20.143754 7fc42ef7aa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:33:20.143754 7fc42ef7aa80 Options.compression_opts.level: -1
+2021/03/14-00:33:20.143755 7fc42ef7aa80 Options.compression_opts.strategy: 0
+2021/03/14-00:33:20.143755 7fc42ef7aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:33:20.143756 7fc42ef7aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:33:20.143757 7fc42ef7aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:33:20.143757 7fc42ef7aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:33:20.143758 7fc42ef7aa80 Options.target_file_size_base: 67108864
+2021/03/14-00:33:20.143758 7fc42ef7aa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:33:20.143759 7fc42ef7aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:33:20.143760 7fc42ef7aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:33:20.143760 7fc42ef7aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:33:20.143762 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:33:20.143769 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:33:20.143770 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:33:20.143770 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:33:20.143771 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:33:20.143771 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:33:20.143772 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:33:20.143772 7fc42ef7aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:33:20.143773 7fc42ef7aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:33:20.143774 7fc42ef7aa80 Options.arena_block_size: 16777216
+2021/03/14-00:33:20.143774 7fc42ef7aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:33:20.143775 7fc42ef7aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:33:20.143775 7fc42ef7aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:33:20.143776 7fc42ef7aa80 Options.disable_auto_compactions: 0
+2021/03/14-00:33:20.143778 7fc42ef7aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:33:20.143778 7fc42ef7aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:33:20.143779 7fc42ef7aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:33:20.143780 7fc42ef7aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:33:20.143780 7fc42ef7aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:33:20.143781 7fc42ef7aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:33:20.143781 7fc42ef7aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:33:20.143782 7fc42ef7aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:33:20.143783 7fc42ef7aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:33:20.143783 7fc42ef7aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:33:20.143784 7fc42ef7aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:33:20.143784 7fc42ef7aa80 Options.table_properties_collectors:
+2021/03/14-00:33:20.143785 7fc42ef7aa80 Options.inplace_update_support: 0
+2021/03/14-00:33:20.143786 7fc42ef7aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:33:20.143786 7fc42ef7aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:33:20.143787 7fc42ef7aa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:33:20.143788 7fc42ef7aa80 Options.bloom_locality: 0
+2021/03/14-00:33:20.143788 7fc42ef7aa80 Options.max_successive_merges: 0
+2021/03/14-00:33:20.143789 7fc42ef7aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:33:20.143789 7fc42ef7aa80 Options.paranoid_file_checks: 0
+2021/03/14-00:33:20.143790 7fc42ef7aa80 Options.force_consistency_checks: 0
+2021/03/14-00:33:20.143790 7fc42ef7aa80 Options.report_bg_io_stats: 0
+2021/03/14-00:33:20.144156 7fc42ef7aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:33:20.144159 7fc42ef7aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:33:20.144263 7fc42ef7aa80 EVENT_LOG_v1 {"time_micros": 1615678400144254, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:33:20.144269 7fc42ef7aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:33:20.817180 7fc42ef7aa80 EVENT_LOG_v1 {"time_micros": 1615678400817176, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678401528371 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678401528371
new file mode 100644
index 0000000..b969906
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678401528371
@@ -0,0 +1,186 @@
+2021/03/14-00:33:20.830535 7fc42ef7aa80 RocksDB version: 5.11.3
+2021/03/14-00:33:20.830590 7fc42ef7aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:33:20.830592 7fc42ef7aa80 Compile date Mar 13 2021
+2021/03/14-00:33:20.830596 7fc42ef7aa80 DB SUMMARY
+2021/03/14-00:33:20.830686 7fc42ef7aa80 CURRENT file: CURRENT
+2021/03/14-00:33:20.830687 7fc42ef7aa80 IDENTITY file: IDENTITY
+2021/03/14-00:33:20.830696 7fc42ef7aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:33:20.830697 7fc42ef7aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:33:20.830698 7fc42ef7aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:33:20.830703 7fc42ef7aa80 Options.error_if_exists: 0
+2021/03/14-00:33:20.830703 7fc42ef7aa80 Options.create_if_missing: 1
+2021/03/14-00:33:20.830704 7fc42ef7aa80 Options.paranoid_checks: 1
+2021/03/14-00:33:20.830705 7fc42ef7aa80 Options.env: 0x7fc42f934080
+2021/03/14-00:33:20.830705 7fc42ef7aa80 Options.info_log: 0x2980ca0
+2021/03/14-00:33:20.830706 7fc42ef7aa80 Options.max_file_opening_threads: 16
+2021/03/14-00:33:20.830706 7fc42ef7aa80 Options.statistics: (nil)
+2021/03/14-00:33:20.830707 7fc42ef7aa80 Options.use_fsync: 0
+2021/03/14-00:33:20.830708 7fc42ef7aa80 Options.max_log_file_size: 0
+2021/03/14-00:33:20.830708 7fc42ef7aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:33:20.830709 7fc42ef7aa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:33:20.830709 7fc42ef7aa80 Options.keep_log_file_num: 1000
+2021/03/14-00:33:20.830710 7fc42ef7aa80 Options.recycle_log_file_num: 0
+2021/03/14-00:33:20.830711 7fc42ef7aa80 Options.allow_fallocate: 1
+2021/03/14-00:33:20.830711 7fc42ef7aa80 Options.allow_mmap_reads: 0
+2021/03/14-00:33:20.830712 7fc42ef7aa80 Options.allow_mmap_writes: 0
+2021/03/14-00:33:20.830712 7fc42ef7aa80 Options.use_direct_reads: 0
+2021/03/14-00:33:20.830713 7fc42ef7aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:33:20.830713 7fc42ef7aa80 Options.create_missing_column_families: 0
+2021/03/14-00:33:20.830714 7fc42ef7aa80 Options.db_log_dir:
+2021/03/14-00:33:20.830715 7fc42ef7aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:33:20.830715 7fc42ef7aa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:33:20.830716 7fc42ef7aa80 Options.max_subcompactions: 1
+2021/03/14-00:33:20.830716 7fc42ef7aa80 Options.max_background_flushes: -1
+2021/03/14-00:33:20.830717 7fc42ef7aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:33:20.830717 7fc42ef7aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:33:20.830718 7fc42ef7aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:33:20.830719 7fc42ef7aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:33:20.830719 7fc42ef7aa80 Options.advise_random_on_open: 1
+2021/03/14-00:33:20.830720 7fc42ef7aa80 Options.db_write_buffer_size: 0
+2021/03/14-00:33:20.830720 7fc42ef7aa80 Options.write_buffer_manager: 0x2968b90
+2021/03/14-00:33:20.830721 7fc42ef7aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:33:20.830721 7fc42ef7aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:33:20.830722 7fc42ef7aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:33:20.830722 7fc42ef7aa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:33:20.830723 7fc42ef7aa80 Options.rate_limiter: (nil)
+2021/03/14-00:33:20.830724 7fc42ef7aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:33:20.830732 7fc42ef7aa80 Options.wal_recovery_mode: 2
+2021/03/14-00:33:20.830732 7fc42ef7aa80 Options.enable_thread_tracking: 0
+2021/03/14-00:33:20.830733 7fc42ef7aa80 Options.enable_pipelined_write: 0
+2021/03/14-00:33:20.830734 7fc42ef7aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:33:20.830734 7fc42ef7aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:33:20.830735 7fc42ef7aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:33:20.830735 7fc42ef7aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:33:20.830736 7fc42ef7aa80 Options.row_cache: None
+2021/03/14-00:33:20.830736 7fc42ef7aa80 Options.wal_filter: None
+2021/03/14-00:33:20.830737 7fc42ef7aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:33:20.830738 7fc42ef7aa80 Options.allow_ingest_behind: 0
+2021/03/14-00:33:20.830738 7fc42ef7aa80 Options.preserve_deletes: 0
+2021/03/14-00:33:20.830739 7fc42ef7aa80 Options.two_write_queues: 0
+2021/03/14-00:33:20.830739 7fc42ef7aa80 Options.manual_wal_flush: 0
+2021/03/14-00:33:20.830740 7fc42ef7aa80 Options.max_background_jobs: 16
+2021/03/14-00:33:20.830741 7fc42ef7aa80 Options.max_background_compactions: -1
+2021/03/14-00:33:20.830741 7fc42ef7aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:33:20.830742 7fc42ef7aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:33:20.830743 7fc42ef7aa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:33:20.830743 7fc42ef7aa80 Options.max_total_wal_size: 0
+2021/03/14-00:33:20.830744 7fc42ef7aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:33:20.830744 7fc42ef7aa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:33:20.830745 7fc42ef7aa80 Options.max_open_files: -1
+2021/03/14-00:33:20.830745 7fc42ef7aa80 Options.bytes_per_sync: 0
+2021/03/14-00:33:20.830746 7fc42ef7aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:33:20.830747 7fc42ef7aa80 Options.compaction_readahead_size: 0
+2021/03/14-00:33:20.830747 7fc42ef7aa80 Compression algorithms supported:
+2021/03/14-00:33:20.830748 7fc42ef7aa80 Snappy supported: 1
+2021/03/14-00:33:20.830748 7fc42ef7aa80 Zlib supported: 1
+2021/03/14-00:33:20.830749 7fc42ef7aa80 Bzip supported: 1
+2021/03/14-00:33:20.830749 7fc42ef7aa80 LZ4 supported: 1
+2021/03/14-00:33:20.830750 7fc42ef7aa80 ZSTDNotFinal supported: 1
+2021/03/14-00:33:20.830753 7fc42ef7aa80 ZSTD supported: 1
+2021/03/14-00:33:20.830756 7fc42ef7aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:33:20.830758 7fc42ef7aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:33:20.830848 7fc42ef7aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:33:20.830900 7fc42ef7aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:33:20.830902 7fc42ef7aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:33:20.830903 7fc42ef7aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:33:20.830904 7fc42ef7aa80 Options.compaction_filter: None
+2021/03/14-00:33:20.830904 7fc42ef7aa80 Options.compaction_filter_factory: None
+2021/03/14-00:33:20.830905 7fc42ef7aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:33:20.830906 7fc42ef7aa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:33:20.830919 7fc42ef7aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2978520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x295dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:33:20.830920 7fc42ef7aa80 Options.write_buffer_size: 134217728
+2021/03/14-00:33:20.830921 7fc42ef7aa80 Options.max_write_buffer_number: 6
+2021/03/14-00:33:20.830922 7fc42ef7aa80 Options.compression[0]: NoCompression
+2021/03/14-00:33:20.830922 7fc42ef7aa80 Options.compression[1]: NoCompression
+2021/03/14-00:33:20.830923 7fc42ef7aa80 Options.compression[2]: Snappy
+2021/03/14-00:33:20.830923 7fc42ef7aa80 Options.compression[3]: Snappy
+2021/03/14-00:33:20.830924 7fc42ef7aa80 Options.compression[4]: Snappy
+2021/03/14-00:33:20.830925 7fc42ef7aa80 Options.compression[5]: Snappy
+2021/03/14-00:33:20.830925 7fc42ef7aa80 Options.compression[6]: Snappy
+2021/03/14-00:33:20.830926 7fc42ef7aa80 Options.bottommost_compression: Disabled
+2021/03/14-00:33:20.830926 7fc42ef7aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:33:20.830927 7fc42ef7aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:33:20.830928 7fc42ef7aa80 Options.num_levels: 7
+2021/03/14-00:33:20.830928 7fc42ef7aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:33:20.830929 7fc42ef7aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:33:20.830929 7fc42ef7aa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:33:20.830930 7fc42ef7aa80 Options.compression_opts.level: -1
+2021/03/14-00:33:20.830931 7fc42ef7aa80 Options.compression_opts.strategy: 0
+2021/03/14-00:33:20.830931 7fc42ef7aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:33:20.830932 7fc42ef7aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:33:20.830932 7fc42ef7aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:33:20.830933 7fc42ef7aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:33:20.830933 7fc42ef7aa80 Options.target_file_size_base: 67108864
+2021/03/14-00:33:20.830934 7fc42ef7aa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:33:20.830935 7fc42ef7aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:33:20.830935 7fc42ef7aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:33:20.830936 7fc42ef7aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:33:20.830937 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:33:20.830945 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:33:20.830945 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:33:20.830946 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:33:20.830946 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:33:20.830947 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:33:20.830948 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:33:20.830948 7fc42ef7aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:33:20.830949 7fc42ef7aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:33:20.830949 7fc42ef7aa80 Options.arena_block_size: 16777216
+2021/03/14-00:33:20.830950 7fc42ef7aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:33:20.830950 7fc42ef7aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:33:20.830951 7fc42ef7aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:33:20.830952 7fc42ef7aa80 Options.disable_auto_compactions: 0
+2021/03/14-00:33:20.830953 7fc42ef7aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:33:20.830954 7fc42ef7aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:33:20.830955 7fc42ef7aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:33:20.830955 7fc42ef7aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:33:20.830956 7fc42ef7aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:33:20.830956 7fc42ef7aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:33:20.830957 7fc42ef7aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:33:20.830958 7fc42ef7aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:33:20.830958 7fc42ef7aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:33:20.830959 7fc42ef7aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:33:20.830959 7fc42ef7aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:33:20.830960 7fc42ef7aa80 Options.table_properties_collectors:
+2021/03/14-00:33:20.830960 7fc42ef7aa80 Options.inplace_update_support: 0
+2021/03/14-00:33:20.830961 7fc42ef7aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:33:20.830962 7fc42ef7aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:33:20.830962 7fc42ef7aa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:33:20.830963 7fc42ef7aa80 Options.bloom_locality: 0
+2021/03/14-00:33:20.830964 7fc42ef7aa80 Options.max_successive_merges: 0
+2021/03/14-00:33:20.830964 7fc42ef7aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:33:20.830965 7fc42ef7aa80 Options.paranoid_file_checks: 0
+2021/03/14-00:33:20.830965 7fc42ef7aa80 Options.force_consistency_checks: 0
+2021/03/14-00:33:20.830966 7fc42ef7aa80 Options.report_bg_io_stats: 0
+2021/03/14-00:33:20.831349 7fc42ef7aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:33:20.831351 7fc42ef7aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:33:20.831452 7fc42ef7aa80 EVENT_LOG_v1 {"time_micros": 1615678400831442, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:33:20.831457 7fc42ef7aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:33:21.515184 7fc42ef7aa80 EVENT_LOG_v1 {"time_micros": 1615678401515181, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678473055226 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678473055226
new file mode 100644
index 0000000..08fa93c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678473055226
@@ -0,0 +1,186 @@
+2021/03/14-00:33:21.528723 7fc42ef7aa80 RocksDB version: 5.11.3
+2021/03/14-00:33:21.528782 7fc42ef7aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:33:21.528783 7fc42ef7aa80 Compile date Mar 13 2021
+2021/03/14-00:33:21.528788 7fc42ef7aa80 DB SUMMARY
+2021/03/14-00:33:21.528877 7fc42ef7aa80 CURRENT file: CURRENT
+2021/03/14-00:33:21.528878 7fc42ef7aa80 IDENTITY file: IDENTITY
+2021/03/14-00:33:21.528886 7fc42ef7aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:33:21.528888 7fc42ef7aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:33:21.528888 7fc42ef7aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:33:21.528894 7fc42ef7aa80 Options.error_if_exists: 0
+2021/03/14-00:33:21.528894 7fc42ef7aa80 Options.create_if_missing: 1
+2021/03/14-00:33:21.528895 7fc42ef7aa80 Options.paranoid_checks: 1
+2021/03/14-00:33:21.528896 7fc42ef7aa80 Options.env: 0x7fc42f934080
+2021/03/14-00:33:21.528896 7fc42ef7aa80 Options.info_log: 0x2980ca0
+2021/03/14-00:33:21.528897 7fc42ef7aa80 Options.max_file_opening_threads: 16
+2021/03/14-00:33:21.528897 7fc42ef7aa80 Options.statistics: (nil)
+2021/03/14-00:33:21.528898 7fc42ef7aa80 Options.use_fsync: 0
+2021/03/14-00:33:21.528899 7fc42ef7aa80 Options.max_log_file_size: 0
+2021/03/14-00:33:21.528899 7fc42ef7aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:33:21.528900 7fc42ef7aa80 Options.log_file_time_to_roll: 0
+2021/03/14-00:33:21.528900 7fc42ef7aa80 Options.keep_log_file_num: 1000
+2021/03/14-00:33:21.528901 7fc42ef7aa80 Options.recycle_log_file_num: 0
+2021/03/14-00:33:21.528902 7fc42ef7aa80 Options.allow_fallocate: 1
+2021/03/14-00:33:21.528902 7fc42ef7aa80 Options.allow_mmap_reads: 0
+2021/03/14-00:33:21.528903 7fc42ef7aa80 Options.allow_mmap_writes: 0
+2021/03/14-00:33:21.528903 7fc42ef7aa80 Options.use_direct_reads: 0
+2021/03/14-00:33:21.528904 7fc42ef7aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:33:21.528904 7fc42ef7aa80 Options.create_missing_column_families: 0
+2021/03/14-00:33:21.528905 7fc42ef7aa80 Options.db_log_dir:
+2021/03/14-00:33:21.528905 7fc42ef7aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:33:21.528906 7fc42ef7aa80 Options.table_cache_numshardbits: 6
+2021/03/14-00:33:21.528907 7fc42ef7aa80 Options.max_subcompactions: 1
+2021/03/14-00:33:21.528907 7fc42ef7aa80 Options.max_background_flushes: -1
+2021/03/14-00:33:21.528908 7fc42ef7aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:33:21.528908 7fc42ef7aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:33:21.528909 7fc42ef7aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:33:21.528910 7fc42ef7aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:33:21.528910 7fc42ef7aa80 Options.advise_random_on_open: 1
+2021/03/14-00:33:21.528911 7fc42ef7aa80 Options.db_write_buffer_size: 0
+2021/03/14-00:33:21.528911 7fc42ef7aa80 Options.write_buffer_manager: 0x2968b90
+2021/03/14-00:33:21.528912 7fc42ef7aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:33:21.528912 7fc42ef7aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:33:21.528913 7fc42ef7aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:33:21.528913 7fc42ef7aa80 Options.use_adaptive_mutex: 0
+2021/03/14-00:33:21.528914 7fc42ef7aa80 Options.rate_limiter: (nil)
+2021/03/14-00:33:21.528915 7fc42ef7aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:33:21.528923 7fc42ef7aa80 Options.wal_recovery_mode: 2
+2021/03/14-00:33:21.528924 7fc42ef7aa80 Options.enable_thread_tracking: 0
+2021/03/14-00:33:21.528924 7fc42ef7aa80 Options.enable_pipelined_write: 0
+2021/03/14-00:33:21.528925 7fc42ef7aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:33:21.528926 7fc42ef7aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:33:21.528926 7fc42ef7aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:33:21.528927 7fc42ef7aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:33:21.528927 7fc42ef7aa80 Options.row_cache: None
+2021/03/14-00:33:21.528928 7fc42ef7aa80 Options.wal_filter: None
+2021/03/14-00:33:21.528928 7fc42ef7aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:33:21.528929 7fc42ef7aa80 Options.allow_ingest_behind: 0
+2021/03/14-00:33:21.528929 7fc42ef7aa80 Options.preserve_deletes: 0
+2021/03/14-00:33:21.528930 7fc42ef7aa80 Options.two_write_queues: 0
+2021/03/14-00:33:21.528930 7fc42ef7aa80 Options.manual_wal_flush: 0
+2021/03/14-00:33:21.528932 7fc42ef7aa80 Options.max_background_jobs: 16
+2021/03/14-00:33:21.528932 7fc42ef7aa80 Options.max_background_compactions: -1
+2021/03/14-00:33:21.528933 7fc42ef7aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:33:21.528933 7fc42ef7aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:33:21.528934 7fc42ef7aa80 Options.delayed_write_rate : 16777216
+2021/03/14-00:33:21.528934 7fc42ef7aa80 Options.max_total_wal_size: 0
+2021/03/14-00:33:21.528935 7fc42ef7aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:33:21.528936 7fc42ef7aa80 Options.stats_dump_period_sec: 600
+2021/03/14-00:33:21.528936 7fc42ef7aa80 Options.max_open_files: -1
+2021/03/14-00:33:21.528937 7fc42ef7aa80 Options.bytes_per_sync: 0
+2021/03/14-00:33:21.528937 7fc42ef7aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:33:21.528938 7fc42ef7aa80 Options.compaction_readahead_size: 0
+2021/03/14-00:33:21.528938 7fc42ef7aa80 Compression algorithms supported:
+2021/03/14-00:33:21.528939 7fc42ef7aa80 Snappy supported: 1
+2021/03/14-00:33:21.528940 7fc42ef7aa80 Zlib supported: 1
+2021/03/14-00:33:21.528940 7fc42ef7aa80 Bzip supported: 1
+2021/03/14-00:33:21.528941 7fc42ef7aa80 LZ4 supported: 1
+2021/03/14-00:33:21.528941 7fc42ef7aa80 ZSTDNotFinal supported: 1
+2021/03/14-00:33:21.528945 7fc42ef7aa80 ZSTD supported: 1
+2021/03/14-00:33:21.528948 7fc42ef7aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:33:21.528949 7fc42ef7aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:33:21.529037 7fc42ef7aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:33:21.529090 7fc42ef7aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:33:21.529092 7fc42ef7aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:33:21.529093 7fc42ef7aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:33:21.529093 7fc42ef7aa80 Options.compaction_filter: None
+2021/03/14-00:33:21.529094 7fc42ef7aa80 Options.compaction_filter_factory: None
+2021/03/14-00:33:21.529095 7fc42ef7aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:33:21.529095 7fc42ef7aa80 Options.table_factory: BlockBasedTable
+2021/03/14-00:33:21.529108 7fc42ef7aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2978520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x295dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:33:21.529109 7fc42ef7aa80 Options.write_buffer_size: 134217728
+2021/03/14-00:33:21.529110 7fc42ef7aa80 Options.max_write_buffer_number: 6
+2021/03/14-00:33:21.529111 7fc42ef7aa80 Options.compression[0]: NoCompression
+2021/03/14-00:33:21.529111 7fc42ef7aa80 Options.compression[1]: NoCompression
+2021/03/14-00:33:21.529112 7fc42ef7aa80 Options.compression[2]: Snappy
+2021/03/14-00:33:21.529113 7fc42ef7aa80 Options.compression[3]: Snappy
+2021/03/14-00:33:21.529113 7fc42ef7aa80 Options.compression[4]: Snappy
+2021/03/14-00:33:21.529114 7fc42ef7aa80 Options.compression[5]: Snappy
+2021/03/14-00:33:21.529114 7fc42ef7aa80 Options.compression[6]: Snappy
+2021/03/14-00:33:21.529115 7fc42ef7aa80 Options.bottommost_compression: Disabled
+2021/03/14-00:33:21.529116 7fc42ef7aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:33:21.529116 7fc42ef7aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:33:21.529117 7fc42ef7aa80 Options.num_levels: 7
+2021/03/14-00:33:21.529118 7fc42ef7aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:33:21.529118 7fc42ef7aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:33:21.529119 7fc42ef7aa80 Options.compression_opts.window_bits: -14
+2021/03/14-00:33:21.529119 7fc42ef7aa80 Options.compression_opts.level: -1
+2021/03/14-00:33:21.529120 7fc42ef7aa80 Options.compression_opts.strategy: 0
+2021/03/14-00:33:21.529121 7fc42ef7aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:33:21.529121 7fc42ef7aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:33:21.529122 7fc42ef7aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:33:21.529122 7fc42ef7aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:33:21.529123 7fc42ef7aa80 Options.target_file_size_base: 67108864
+2021/03/14-00:33:21.529123 7fc42ef7aa80 Options.target_file_size_multiplier: 1
+2021/03/14-00:33:21.529124 7fc42ef7aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:33:21.529125 7fc42ef7aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:33:21.529125 7fc42ef7aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:33:21.529127 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:33:21.529134 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:33:21.529135 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:33:21.529135 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:33:21.529136 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:33:21.529136 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:33:21.529137 7fc42ef7aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:33:21.529137 7fc42ef7aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:33:21.529138 7fc42ef7aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:33:21.529139 7fc42ef7aa80 Options.arena_block_size: 16777216
+2021/03/14-00:33:21.529139 7fc42ef7aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:33:21.529140 7fc42ef7aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:33:21.529140 7fc42ef7aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:33:21.529141 7fc42ef7aa80 Options.disable_auto_compactions: 0
+2021/03/14-00:33:21.529143 7fc42ef7aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:33:21.529143 7fc42ef7aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:33:21.529144 7fc42ef7aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:33:21.529145 7fc42ef7aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:33:21.529145 7fc42ef7aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:33:21.529146 7fc42ef7aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:33:21.529146 7fc42ef7aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:33:21.529147 7fc42ef7aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:33:21.529148 7fc42ef7aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:33:21.529148 7fc42ef7aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:33:21.529149 7fc42ef7aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:33:21.529149 7fc42ef7aa80 Options.table_properties_collectors:
+2021/03/14-00:33:21.529150 7fc42ef7aa80 Options.inplace_update_support: 0
+2021/03/14-00:33:21.529151 7fc42ef7aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:33:21.529151 7fc42ef7aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:33:21.529152 7fc42ef7aa80 Options.memtable_huge_page_size: 0
+2021/03/14-00:33:21.529153 7fc42ef7aa80 Options.bloom_locality: 0
+2021/03/14-00:33:21.529153 7fc42ef7aa80 Options.max_successive_merges: 0
+2021/03/14-00:33:21.529154 7fc42ef7aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:33:21.529154 7fc42ef7aa80 Options.paranoid_file_checks: 0
+2021/03/14-00:33:21.529155 7fc42ef7aa80 Options.force_consistency_checks: 0
+2021/03/14-00:33:21.529155 7fc42ef7aa80 Options.report_bg_io_stats: 0
+2021/03/14-00:33:21.529529 7fc42ef7aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:33:21.529532 7fc42ef7aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:33:21.529633 7fc42ef7aa80 EVENT_LOG_v1 {"time_micros": 1615678401529624, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:33:21.529639 7fc42ef7aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:33:22.211140 7fc42ef7aa80 EVENT_LOG_v1 {"time_micros": 1615678402211136, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678473759576 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678473759576
new file mode 100644
index 0000000..97fa4fd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678473759576
@@ -0,0 +1,186 @@
+2021/03/14-00:34:33.055707 7f68dba10a80 RocksDB version: 5.11.3
+2021/03/14-00:34:33.055778 7f68dba10a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:34:33.055780 7f68dba10a80 Compile date Mar 13 2021
+2021/03/14-00:34:33.055784 7f68dba10a80 DB SUMMARY
+2021/03/14-00:34:33.055891 7f68dba10a80 CURRENT file: CURRENT
+2021/03/14-00:34:33.055892 7f68dba10a80 IDENTITY file: IDENTITY
+2021/03/14-00:34:33.055903 7f68dba10a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:34:33.055904 7f68dba10a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:34:33.055905 7f68dba10a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:34:33.055911 7f68dba10a80 Options.error_if_exists: 0
+2021/03/14-00:34:33.055912 7f68dba10a80 Options.create_if_missing: 1
+2021/03/14-00:34:33.055912 7f68dba10a80 Options.paranoid_checks: 1
+2021/03/14-00:34:33.055913 7f68dba10a80 Options.env: 0x7f68dc3ca080
+2021/03/14-00:34:33.055914 7f68dba10a80 Options.info_log: 0x20f0ca0
+2021/03/14-00:34:33.055915 7f68dba10a80 Options.max_file_opening_threads: 16
+2021/03/14-00:34:33.055915 7f68dba10a80 Options.statistics: (nil)
+2021/03/14-00:34:33.055916 7f68dba10a80 Options.use_fsync: 0
+2021/03/14-00:34:33.055917 7f68dba10a80 Options.max_log_file_size: 0
+2021/03/14-00:34:33.055918 7f68dba10a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:34:33.055918 7f68dba10a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:34:33.055919 7f68dba10a80 Options.keep_log_file_num: 1000
+2021/03/14-00:34:33.055920 7f68dba10a80 Options.recycle_log_file_num: 0
+2021/03/14-00:34:33.055921 7f68dba10a80 Options.allow_fallocate: 1
+2021/03/14-00:34:33.055921 7f68dba10a80 Options.allow_mmap_reads: 0
+2021/03/14-00:34:33.055922 7f68dba10a80 Options.allow_mmap_writes: 0
+2021/03/14-00:34:33.055922 7f68dba10a80 Options.use_direct_reads: 0
+2021/03/14-00:34:33.055923 7f68dba10a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:34:33.055924 7f68dba10a80 Options.create_missing_column_families: 0
+2021/03/14-00:34:33.055924 7f68dba10a80 Options.db_log_dir:
+2021/03/14-00:34:33.055925 7f68dba10a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:34:33.055926 7f68dba10a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:34:33.055926 7f68dba10a80 Options.max_subcompactions: 1
+2021/03/14-00:34:33.055927 7f68dba10a80 Options.max_background_flushes: -1
+2021/03/14-00:34:33.055928 7f68dba10a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:34:33.055928 7f68dba10a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:34:33.055929 7f68dba10a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:34:33.055930 7f68dba10a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:34:33.055930 7f68dba10a80 Options.advise_random_on_open: 1
+2021/03/14-00:34:33.055931 7f68dba10a80 Options.db_write_buffer_size: 0
+2021/03/14-00:34:33.055932 7f68dba10a80 Options.write_buffer_manager: 0x20d8b90
+2021/03/14-00:34:33.055932 7f68dba10a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:34:33.055933 7f68dba10a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:34:33.055934 7f68dba10a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:34:33.055934 7f68dba10a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:34:33.055935 7f68dba10a80 Options.rate_limiter: (nil)
+2021/03/14-00:34:33.055937 7f68dba10a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:34:33.055946 7f68dba10a80 Options.wal_recovery_mode: 2
+2021/03/14-00:34:33.055947 7f68dba10a80 Options.enable_thread_tracking: 0
+2021/03/14-00:34:33.055948 7f68dba10a80 Options.enable_pipelined_write: 0
+2021/03/14-00:34:33.055948 7f68dba10a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:34:33.055949 7f68dba10a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:34:33.055949 7f68dba10a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:34:33.055950 7f68dba10a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:34:33.055951 7f68dba10a80 Options.row_cache: None
+2021/03/14-00:34:33.055951 7f68dba10a80 Options.wal_filter: None
+2021/03/14-00:34:33.055952 7f68dba10a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:34:33.055953 7f68dba10a80 Options.allow_ingest_behind: 0
+2021/03/14-00:34:33.055953 7f68dba10a80 Options.preserve_deletes: 0
+2021/03/14-00:34:33.055954 7f68dba10a80 Options.two_write_queues: 0
+2021/03/14-00:34:33.055955 7f68dba10a80 Options.manual_wal_flush: 0
+2021/03/14-00:34:33.055956 7f68dba10a80 Options.max_background_jobs: 16
+2021/03/14-00:34:33.055957 7f68dba10a80 Options.max_background_compactions: -1
+2021/03/14-00:34:33.055958 7f68dba10a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:34:33.055958 7f68dba10a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:34:33.055959 7f68dba10a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:34:33.055960 7f68dba10a80 Options.max_total_wal_size: 0
+2021/03/14-00:34:33.055960 7f68dba10a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:34:33.055961 7f68dba10a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:34:33.055962 7f68dba10a80 Options.max_open_files: -1
+2021/03/14-00:34:33.055962 7f68dba10a80 Options.bytes_per_sync: 0
+2021/03/14-00:34:33.055963 7f68dba10a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:34:33.055964 7f68dba10a80 Options.compaction_readahead_size: 0
+2021/03/14-00:34:33.055964 7f68dba10a80 Compression algorithms supported:
+2021/03/14-00:34:33.055965 7f68dba10a80 Snappy supported: 1
+2021/03/14-00:34:33.055966 7f68dba10a80 Zlib supported: 1
+2021/03/14-00:34:33.055966 7f68dba10a80 Bzip supported: 1
+2021/03/14-00:34:33.055967 7f68dba10a80 LZ4 supported: 1
+2021/03/14-00:34:33.055968 7f68dba10a80 ZSTDNotFinal supported: 1
+2021/03/14-00:34:33.055973 7f68dba10a80 ZSTD supported: 1
+2021/03/14-00:34:33.055977 7f68dba10a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:34:33.055979 7f68dba10a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:34:33.056099 7f68dba10a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:34:33.056181 7f68dba10a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:34:33.056183 7f68dba10a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:34:33.056184 7f68dba10a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:34:33.056185 7f68dba10a80 Options.compaction_filter: None
+2021/03/14-00:34:33.056186 7f68dba10a80 Options.compaction_filter_factory: None
+2021/03/14-00:34:33.056186 7f68dba10a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:34:33.056187 7f68dba10a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:34:33.056204 7f68dba10a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x20e8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20cdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:34:33.056205 7f68dba10a80 Options.write_buffer_size: 134217728
+2021/03/14-00:34:33.056206 7f68dba10a80 Options.max_write_buffer_number: 6
+2021/03/14-00:34:33.056206 7f68dba10a80 Options.compression[0]: NoCompression
+2021/03/14-00:34:33.056207 7f68dba10a80 Options.compression[1]: NoCompression
+2021/03/14-00:34:33.056208 7f68dba10a80 Options.compression[2]: Snappy
+2021/03/14-00:34:33.056208 7f68dba10a80 Options.compression[3]: Snappy
+2021/03/14-00:34:33.056209 7f68dba10a80 Options.compression[4]: Snappy
+2021/03/14-00:34:33.056210 7f68dba10a80 Options.compression[5]: Snappy
+2021/03/14-00:34:33.056210 7f68dba10a80 Options.compression[6]: Snappy
+2021/03/14-00:34:33.056211 7f68dba10a80 Options.bottommost_compression: Disabled
+2021/03/14-00:34:33.056212 7f68dba10a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:34:33.056213 7f68dba10a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:34:33.056213 7f68dba10a80 Options.num_levels: 7
+2021/03/14-00:34:33.056214 7f68dba10a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:34:33.056215 7f68dba10a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:34:33.056215 7f68dba10a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:34:33.056216 7f68dba10a80 Options.compression_opts.level: -1
+2021/03/14-00:34:33.056217 7f68dba10a80 Options.compression_opts.strategy: 0
+2021/03/14-00:34:33.056217 7f68dba10a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:34:33.056218 7f68dba10a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:34:33.056219 7f68dba10a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:34:33.056219 7f68dba10a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:34:33.056220 7f68dba10a80 Options.target_file_size_base: 67108864
+2021/03/14-00:34:33.056221 7f68dba10a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:34:33.056221 7f68dba10a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:34:33.056222 7f68dba10a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:34:33.056223 7f68dba10a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:34:33.056225 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:34:33.056234 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:34:33.056234 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:34:33.056235 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:34:33.056236 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:34:33.056236 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:34:33.056237 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:34:33.056246 7f68dba10a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:34:33.056247 7f68dba10a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:34:33.056248 7f68dba10a80 Options.arena_block_size: 16777216
+2021/03/14-00:34:33.056249 7f68dba10a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:34:33.056249 7f68dba10a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:34:33.056250 7f68dba10a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:34:33.056251 7f68dba10a80 Options.disable_auto_compactions: 0
+2021/03/14-00:34:33.056253 7f68dba10a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:34:33.056253 7f68dba10a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:34:33.056254 7f68dba10a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:34:33.056255 7f68dba10a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:34:33.056255 7f68dba10a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:34:33.056256 7f68dba10a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:34:33.056257 7f68dba10a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:34:33.056258 7f68dba10a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:34:33.056258 7f68dba10a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:34:33.056259 7f68dba10a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:34:33.056260 7f68dba10a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:34:33.056260 7f68dba10a80 Options.table_properties_collectors:
+2021/03/14-00:34:33.056261 7f68dba10a80 Options.inplace_update_support: 0
+2021/03/14-00:34:33.056262 7f68dba10a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:34:33.056262 7f68dba10a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:34:33.056263 7f68dba10a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:34:33.056264 7f68dba10a80 Options.bloom_locality: 0
+2021/03/14-00:34:33.056264 7f68dba10a80 Options.max_successive_merges: 0
+2021/03/14-00:34:33.056265 7f68dba10a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:34:33.056266 7f68dba10a80 Options.paranoid_file_checks: 0
+2021/03/14-00:34:33.056266 7f68dba10a80 Options.force_consistency_checks: 0
+2021/03/14-00:34:33.056267 7f68dba10a80 Options.report_bg_io_stats: 0
+2021/03/14-00:34:33.056745 7f68dba10a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:34:33.056748 7f68dba10a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:34:33.056876 7f68dba10a80 EVENT_LOG_v1 {"time_micros": 1615678473056859, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:34:33.056884 7f68dba10a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:34:33.747546 7f68dba10a80 EVENT_LOG_v1 {"time_micros": 1615678473747542, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678474480847 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678474480847
new file mode 100644
index 0000000..51b4e63
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678474480847
@@ -0,0 +1,186 @@
+2021/03/14-00:34:33.759933 7f68dba10a80 RocksDB version: 5.11.3
+2021/03/14-00:34:33.759985 7f68dba10a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:34:33.759987 7f68dba10a80 Compile date Mar 13 2021
+2021/03/14-00:34:33.759989 7f68dba10a80 DB SUMMARY
+2021/03/14-00:34:33.760079 7f68dba10a80 CURRENT file: CURRENT
+2021/03/14-00:34:33.760080 7f68dba10a80 IDENTITY file: IDENTITY
+2021/03/14-00:34:33.760089 7f68dba10a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:34:33.760090 7f68dba10a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:34:33.760091 7f68dba10a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:34:33.760096 7f68dba10a80 Options.error_if_exists: 0
+2021/03/14-00:34:33.760097 7f68dba10a80 Options.create_if_missing: 1
+2021/03/14-00:34:33.760098 7f68dba10a80 Options.paranoid_checks: 1
+2021/03/14-00:34:33.760098 7f68dba10a80 Options.env: 0x7f68dc3ca080
+2021/03/14-00:34:33.760099 7f68dba10a80 Options.info_log: 0x20f0ca0
+2021/03/14-00:34:33.760100 7f68dba10a80 Options.max_file_opening_threads: 16
+2021/03/14-00:34:33.760100 7f68dba10a80 Options.statistics: (nil)
+2021/03/14-00:34:33.760101 7f68dba10a80 Options.use_fsync: 0
+2021/03/14-00:34:33.760101 7f68dba10a80 Options.max_log_file_size: 0
+2021/03/14-00:34:33.760102 7f68dba10a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:34:33.760103 7f68dba10a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:34:33.760103 7f68dba10a80 Options.keep_log_file_num: 1000
+2021/03/14-00:34:33.760104 7f68dba10a80 Options.recycle_log_file_num: 0
+2021/03/14-00:34:33.760104 7f68dba10a80 Options.allow_fallocate: 1
+2021/03/14-00:34:33.760105 7f68dba10a80 Options.allow_mmap_reads: 0
+2021/03/14-00:34:33.760106 7f68dba10a80 Options.allow_mmap_writes: 0
+2021/03/14-00:34:33.760106 7f68dba10a80 Options.use_direct_reads: 0
+2021/03/14-00:34:33.760107 7f68dba10a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:34:33.760107 7f68dba10a80 Options.create_missing_column_families: 0
+2021/03/14-00:34:33.760108 7f68dba10a80 Options.db_log_dir:
+2021/03/14-00:34:33.760108 7f68dba10a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:34:33.760109 7f68dba10a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:34:33.760109 7f68dba10a80 Options.max_subcompactions: 1
+2021/03/14-00:34:33.760110 7f68dba10a80 Options.max_background_flushes: -1
+2021/03/14-00:34:33.760111 7f68dba10a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:34:33.760111 7f68dba10a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:34:33.760112 7f68dba10a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:34:33.760112 7f68dba10a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:34:33.760113 7f68dba10a80 Options.advise_random_on_open: 1
+2021/03/14-00:34:33.760113 7f68dba10a80 Options.db_write_buffer_size: 0
+2021/03/14-00:34:33.760114 7f68dba10a80 Options.write_buffer_manager: 0x20d8b90
+2021/03/14-00:34:33.760115 7f68dba10a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:34:33.760115 7f68dba10a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:34:33.760116 7f68dba10a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:34:33.760116 7f68dba10a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:34:33.760117 7f68dba10a80 Options.rate_limiter: (nil)
+2021/03/14-00:34:33.760118 7f68dba10a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:34:33.760126 7f68dba10a80 Options.wal_recovery_mode: 2
+2021/03/14-00:34:33.760126 7f68dba10a80 Options.enable_thread_tracking: 0
+2021/03/14-00:34:33.760127 7f68dba10a80 Options.enable_pipelined_write: 0
+2021/03/14-00:34:33.760128 7f68dba10a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:34:33.760128 7f68dba10a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:34:33.760129 7f68dba10a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:34:33.760129 7f68dba10a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:34:33.760130 7f68dba10a80 Options.row_cache: None
+2021/03/14-00:34:33.760130 7f68dba10a80 Options.wal_filter: None
+2021/03/14-00:34:33.760131 7f68dba10a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:34:33.760131 7f68dba10a80 Options.allow_ingest_behind: 0
+2021/03/14-00:34:33.760132 7f68dba10a80 Options.preserve_deletes: 0
+2021/03/14-00:34:33.760132 7f68dba10a80 Options.two_write_queues: 0
+2021/03/14-00:34:33.760133 7f68dba10a80 Options.manual_wal_flush: 0
+2021/03/14-00:34:33.760134 7f68dba10a80 Options.max_background_jobs: 16
+2021/03/14-00:34:33.760135 7f68dba10a80 Options.max_background_compactions: -1
+2021/03/14-00:34:33.760135 7f68dba10a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:34:33.760136 7f68dba10a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:34:33.760136 7f68dba10a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:34:33.760137 7f68dba10a80 Options.max_total_wal_size: 0
+2021/03/14-00:34:33.760138 7f68dba10a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:34:33.760138 7f68dba10a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:34:33.760139 7f68dba10a80 Options.max_open_files: -1
+2021/03/14-00:34:33.760139 7f68dba10a80 Options.bytes_per_sync: 0
+2021/03/14-00:34:33.760140 7f68dba10a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:34:33.760140 7f68dba10a80 Options.compaction_readahead_size: 0
+2021/03/14-00:34:33.760141 7f68dba10a80 Compression algorithms supported:
+2021/03/14-00:34:33.760142 7f68dba10a80 Snappy supported: 1
+2021/03/14-00:34:33.760142 7f68dba10a80 Zlib supported: 1
+2021/03/14-00:34:33.760143 7f68dba10a80 Bzip supported: 1
+2021/03/14-00:34:33.760143 7f68dba10a80 LZ4 supported: 1
+2021/03/14-00:34:33.760144 7f68dba10a80 ZSTDNotFinal supported: 1
+2021/03/14-00:34:33.760147 7f68dba10a80 ZSTD supported: 1
+2021/03/14-00:34:33.760150 7f68dba10a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:34:33.760152 7f68dba10a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:34:33.760248 7f68dba10a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:34:33.760303 7f68dba10a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:34:33.760305 7f68dba10a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:34:33.760306 7f68dba10a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:34:33.760306 7f68dba10a80 Options.compaction_filter: None
+2021/03/14-00:34:33.760307 7f68dba10a80 Options.compaction_filter_factory: None
+2021/03/14-00:34:33.760307 7f68dba10a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:34:33.760308 7f68dba10a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:34:33.760322 7f68dba10a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x20e8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20cdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:34:33.760323 7f68dba10a80 Options.write_buffer_size: 134217728
+2021/03/14-00:34:33.760323 7f68dba10a80 Options.max_write_buffer_number: 6
+2021/03/14-00:34:33.760324 7f68dba10a80 Options.compression[0]: NoCompression
+2021/03/14-00:34:33.760325 7f68dba10a80 Options.compression[1]: NoCompression
+2021/03/14-00:34:33.760325 7f68dba10a80 Options.compression[2]: Snappy
+2021/03/14-00:34:33.760326 7f68dba10a80 Options.compression[3]: Snappy
+2021/03/14-00:34:33.760327 7f68dba10a80 Options.compression[4]: Snappy
+2021/03/14-00:34:33.760327 7f68dba10a80 Options.compression[5]: Snappy
+2021/03/14-00:34:33.760328 7f68dba10a80 Options.compression[6]: Snappy
+2021/03/14-00:34:33.760328 7f68dba10a80 Options.bottommost_compression: Disabled
+2021/03/14-00:34:33.760329 7f68dba10a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:34:33.760330 7f68dba10a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:34:33.760330 7f68dba10a80 Options.num_levels: 7
+2021/03/14-00:34:33.760331 7f68dba10a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:34:33.760331 7f68dba10a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:34:33.760332 7f68dba10a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:34:33.760333 7f68dba10a80 Options.compression_opts.level: -1
+2021/03/14-00:34:33.760333 7f68dba10a80 Options.compression_opts.strategy: 0
+2021/03/14-00:34:33.760334 7f68dba10a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:34:33.760334 7f68dba10a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:34:33.760335 7f68dba10a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:34:33.760335 7f68dba10a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:34:33.760336 7f68dba10a80 Options.target_file_size_base: 67108864
+2021/03/14-00:34:33.760337 7f68dba10a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:34:33.760337 7f68dba10a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:34:33.760338 7f68dba10a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:34:33.760338 7f68dba10a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:34:33.760340 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:34:33.760348 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:34:33.760349 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:34:33.760349 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:34:33.760350 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:34:33.760351 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:34:33.760351 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:34:33.760352 7f68dba10a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:34:33.760352 7f68dba10a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:34:33.760353 7f68dba10a80 Options.arena_block_size: 16777216
+2021/03/14-00:34:33.760353 7f68dba10a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:34:33.760354 7f68dba10a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:34:33.760355 7f68dba10a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:34:33.760355 7f68dba10a80 Options.disable_auto_compactions: 0
+2021/03/14-00:34:33.760357 7f68dba10a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:34:33.760357 7f68dba10a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:34:33.760358 7f68dba10a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:34:33.760359 7f68dba10a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:34:33.760359 7f68dba10a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:34:33.760360 7f68dba10a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:34:33.760360 7f68dba10a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:34:33.760361 7f68dba10a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:34:33.760362 7f68dba10a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:34:33.760362 7f68dba10a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:34:33.760363 7f68dba10a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:34:33.760364 7f68dba10a80 Options.table_properties_collectors:
+2021/03/14-00:34:33.760364 7f68dba10a80 Options.inplace_update_support: 0
+2021/03/14-00:34:33.760365 7f68dba10a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:34:33.760365 7f68dba10a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:34:33.760366 7f68dba10a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:34:33.760367 7f68dba10a80 Options.bloom_locality: 0
+2021/03/14-00:34:33.760367 7f68dba10a80 Options.max_successive_merges: 0
+2021/03/14-00:34:33.760368 7f68dba10a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:34:33.760368 7f68dba10a80 Options.paranoid_file_checks: 0
+2021/03/14-00:34:33.760369 7f68dba10a80 Options.force_consistency_checks: 0
+2021/03/14-00:34:33.760369 7f68dba10a80 Options.report_bg_io_stats: 0
+2021/03/14-00:34:33.760795 7f68dba10a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:34:33.760798 7f68dba10a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:34:33.760900 7f68dba10a80 EVENT_LOG_v1 {"time_micros": 1615678473760888, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:34:33.760905 7f68dba10a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:34:34.468732 7f68dba10a80 EVENT_LOG_v1 {"time_micros": 1615678474468728, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678475183346 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678475183346
new file mode 100644
index 0000000..ec2970b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678475183346
@@ -0,0 +1,186 @@
+2021/03/14-00:34:34.481202 7f68dba10a80 RocksDB version: 5.11.3
+2021/03/14-00:34:34.481265 7f68dba10a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:34:34.481267 7f68dba10a80 Compile date Mar 13 2021
+2021/03/14-00:34:34.481269 7f68dba10a80 DB SUMMARY
+2021/03/14-00:34:34.481362 7f68dba10a80 CURRENT file: CURRENT
+2021/03/14-00:34:34.481362 7f68dba10a80 IDENTITY file: IDENTITY
+2021/03/14-00:34:34.481371 7f68dba10a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:34:34.481372 7f68dba10a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:34:34.481373 7f68dba10a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:34:34.481378 7f68dba10a80 Options.error_if_exists: 0
+2021/03/14-00:34:34.481379 7f68dba10a80 Options.create_if_missing: 1
+2021/03/14-00:34:34.481380 7f68dba10a80 Options.paranoid_checks: 1
+2021/03/14-00:34:34.481380 7f68dba10a80 Options.env: 0x7f68dc3ca080
+2021/03/14-00:34:34.481381 7f68dba10a80 Options.info_log: 0x20f0ca0
+2021/03/14-00:34:34.481381 7f68dba10a80 Options.max_file_opening_threads: 16
+2021/03/14-00:34:34.481382 7f68dba10a80 Options.statistics: (nil)
+2021/03/14-00:34:34.481383 7f68dba10a80 Options.use_fsync: 0
+2021/03/14-00:34:34.481383 7f68dba10a80 Options.max_log_file_size: 0
+2021/03/14-00:34:34.481384 7f68dba10a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:34:34.481385 7f68dba10a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:34:34.481385 7f68dba10a80 Options.keep_log_file_num: 1000
+2021/03/14-00:34:34.481386 7f68dba10a80 Options.recycle_log_file_num: 0
+2021/03/14-00:34:34.481386 7f68dba10a80 Options.allow_fallocate: 1
+2021/03/14-00:34:34.481387 7f68dba10a80 Options.allow_mmap_reads: 0
+2021/03/14-00:34:34.481387 7f68dba10a80 Options.allow_mmap_writes: 0
+2021/03/14-00:34:34.481388 7f68dba10a80 Options.use_direct_reads: 0
+2021/03/14-00:34:34.481388 7f68dba10a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:34:34.481389 7f68dba10a80 Options.create_missing_column_families: 0
+2021/03/14-00:34:34.481390 7f68dba10a80 Options.db_log_dir:
+2021/03/14-00:34:34.481390 7f68dba10a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:34:34.481391 7f68dba10a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:34:34.481391 7f68dba10a80 Options.max_subcompactions: 1
+2021/03/14-00:34:34.481392 7f68dba10a80 Options.max_background_flushes: -1
+2021/03/14-00:34:34.481393 7f68dba10a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:34:34.481393 7f68dba10a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:34:34.481394 7f68dba10a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:34:34.481394 7f68dba10a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:34:34.481395 7f68dba10a80 Options.advise_random_on_open: 1
+2021/03/14-00:34:34.481395 7f68dba10a80 Options.db_write_buffer_size: 0
+2021/03/14-00:34:34.481396 7f68dba10a80 Options.write_buffer_manager: 0x20d8b90
+2021/03/14-00:34:34.481396 7f68dba10a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:34:34.481397 7f68dba10a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:34:34.481398 7f68dba10a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:34:34.481398 7f68dba10a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:34:34.481399 7f68dba10a80 Options.rate_limiter: (nil)
+2021/03/14-00:34:34.481400 7f68dba10a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:34:34.481408 7f68dba10a80 Options.wal_recovery_mode: 2
+2021/03/14-00:34:34.481408 7f68dba10a80 Options.enable_thread_tracking: 0
+2021/03/14-00:34:34.481409 7f68dba10a80 Options.enable_pipelined_write: 0
+2021/03/14-00:34:34.481409 7f68dba10a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:34:34.481410 7f68dba10a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:34:34.481411 7f68dba10a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:34:34.481411 7f68dba10a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:34:34.481412 7f68dba10a80 Options.row_cache: None
+2021/03/14-00:34:34.481412 7f68dba10a80 Options.wal_filter: None
+2021/03/14-00:34:34.481413 7f68dba10a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:34:34.481413 7f68dba10a80 Options.allow_ingest_behind: 0
+2021/03/14-00:34:34.481414 7f68dba10a80 Options.preserve_deletes: 0
+2021/03/14-00:34:34.481415 7f68dba10a80 Options.two_write_queues: 0
+2021/03/14-00:34:34.481415 7f68dba10a80 Options.manual_wal_flush: 0
+2021/03/14-00:34:34.481416 7f68dba10a80 Options.max_background_jobs: 16
+2021/03/14-00:34:34.481417 7f68dba10a80 Options.max_background_compactions: -1
+2021/03/14-00:34:34.481417 7f68dba10a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:34:34.481418 7f68dba10a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:34:34.481418 7f68dba10a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:34:34.481419 7f68dba10a80 Options.max_total_wal_size: 0
+2021/03/14-00:34:34.481420 7f68dba10a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:34:34.481420 7f68dba10a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:34:34.481421 7f68dba10a80 Options.max_open_files: -1
+2021/03/14-00:34:34.481421 7f68dba10a80 Options.bytes_per_sync: 0
+2021/03/14-00:34:34.481422 7f68dba10a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:34:34.481422 7f68dba10a80 Options.compaction_readahead_size: 0
+2021/03/14-00:34:34.481423 7f68dba10a80 Compression algorithms supported:
+2021/03/14-00:34:34.481424 7f68dba10a80 Snappy supported: 1
+2021/03/14-00:34:34.481424 7f68dba10a80 Zlib supported: 1
+2021/03/14-00:34:34.481425 7f68dba10a80 Bzip supported: 1
+2021/03/14-00:34:34.481425 7f68dba10a80 LZ4 supported: 1
+2021/03/14-00:34:34.481426 7f68dba10a80 ZSTDNotFinal supported: 1
+2021/03/14-00:34:34.481430 7f68dba10a80 ZSTD supported: 1
+2021/03/14-00:34:34.481433 7f68dba10a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:34:34.481434 7f68dba10a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:34:34.481523 7f68dba10a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:34:34.481577 7f68dba10a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:34:34.481578 7f68dba10a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:34:34.481579 7f68dba10a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:34:34.481580 7f68dba10a80 Options.compaction_filter: None
+2021/03/14-00:34:34.481580 7f68dba10a80 Options.compaction_filter_factory: None
+2021/03/14-00:34:34.481581 7f68dba10a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:34:34.481582 7f68dba10a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:34:34.481596 7f68dba10a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x20e8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20cdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:34:34.481597 7f68dba10a80 Options.write_buffer_size: 134217728
+2021/03/14-00:34:34.481597 7f68dba10a80 Options.max_write_buffer_number: 6
+2021/03/14-00:34:34.481598 7f68dba10a80 Options.compression[0]: NoCompression
+2021/03/14-00:34:34.481599 7f68dba10a80 Options.compression[1]: NoCompression
+2021/03/14-00:34:34.481599 7f68dba10a80 Options.compression[2]: Snappy
+2021/03/14-00:34:34.481600 7f68dba10a80 Options.compression[3]: Snappy
+2021/03/14-00:34:34.481601 7f68dba10a80 Options.compression[4]: Snappy
+2021/03/14-00:34:34.481601 7f68dba10a80 Options.compression[5]: Snappy
+2021/03/14-00:34:34.481602 7f68dba10a80 Options.compression[6]: Snappy
+2021/03/14-00:34:34.481602 7f68dba10a80 Options.bottommost_compression: Disabled
+2021/03/14-00:34:34.481603 7f68dba10a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:34:34.481604 7f68dba10a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:34:34.481604 7f68dba10a80 Options.num_levels: 7
+2021/03/14-00:34:34.481605 7f68dba10a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:34:34.481605 7f68dba10a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:34:34.481606 7f68dba10a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:34:34.481607 7f68dba10a80 Options.compression_opts.level: -1
+2021/03/14-00:34:34.481607 7f68dba10a80 Options.compression_opts.strategy: 0
+2021/03/14-00:34:34.481608 7f68dba10a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:34:34.481608 7f68dba10a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:34:34.481609 7f68dba10a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:34:34.481609 7f68dba10a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:34:34.481610 7f68dba10a80 Options.target_file_size_base: 67108864
+2021/03/14-00:34:34.481611 7f68dba10a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:34:34.481611 7f68dba10a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:34:34.481612 7f68dba10a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:34:34.481612 7f68dba10a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:34:34.481614 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:34:34.481622 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:34:34.481622 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:34:34.481623 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:34:34.481623 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:34:34.481624 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:34:34.481625 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:34:34.481625 7f68dba10a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:34:34.481626 7f68dba10a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:34:34.481626 7f68dba10a80 Options.arena_block_size: 16777216
+2021/03/14-00:34:34.481627 7f68dba10a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:34:34.481627 7f68dba10a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:34:34.481628 7f68dba10a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:34:34.481629 7f68dba10a80 Options.disable_auto_compactions: 0
+2021/03/14-00:34:34.481630 7f68dba10a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:34:34.481631 7f68dba10a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:34:34.481632 7f68dba10a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:34:34.481632 7f68dba10a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:34:34.481633 7f68dba10a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:34:34.481633 7f68dba10a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:34:34.481634 7f68dba10a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:34:34.481635 7f68dba10a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:34:34.481635 7f68dba10a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:34:34.481636 7f68dba10a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:34:34.481636 7f68dba10a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:34:34.481637 7f68dba10a80 Options.table_properties_collectors:
+2021/03/14-00:34:34.481638 7f68dba10a80 Options.inplace_update_support: 0
+2021/03/14-00:34:34.481638 7f68dba10a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:34:34.481639 7f68dba10a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:34:34.481640 7f68dba10a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:34:34.481640 7f68dba10a80 Options.bloom_locality: 0
+2021/03/14-00:34:34.481641 7f68dba10a80 Options.max_successive_merges: 0
+2021/03/14-00:34:34.481641 7f68dba10a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:34:34.481642 7f68dba10a80 Options.paranoid_file_checks: 0
+2021/03/14-00:34:34.481642 7f68dba10a80 Options.force_consistency_checks: 0
+2021/03/14-00:34:34.481643 7f68dba10a80 Options.report_bg_io_stats: 0
+2021/03/14-00:34:34.482011 7f68dba10a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:34:34.482013 7f68dba10a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:34:34.482115 7f68dba10a80 EVENT_LOG_v1 {"time_micros": 1615678474482103, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:34:34.482120 7f68dba10a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:34:35.171283 7f68dba10a80 EVENT_LOG_v1 {"time_micros": 1615678475171279, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678487117248 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678487117248
new file mode 100644
index 0000000..5a5f121
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678487117248
@@ -0,0 +1,186 @@
+2021/03/14-00:34:35.183700 7f68dba10a80 RocksDB version: 5.11.3
+2021/03/14-00:34:35.183756 7f68dba10a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:34:35.183758 7f68dba10a80 Compile date Mar 13 2021
+2021/03/14-00:34:35.183760 7f68dba10a80 DB SUMMARY
+2021/03/14-00:34:35.183851 7f68dba10a80 CURRENT file: CURRENT
+2021/03/14-00:34:35.183852 7f68dba10a80 IDENTITY file: IDENTITY
+2021/03/14-00:34:35.183861 7f68dba10a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:34:35.183862 7f68dba10a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:34:35.183863 7f68dba10a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:34:35.183868 7f68dba10a80 Options.error_if_exists: 0
+2021/03/14-00:34:35.183869 7f68dba10a80 Options.create_if_missing: 1
+2021/03/14-00:34:35.183869 7f68dba10a80 Options.paranoid_checks: 1
+2021/03/14-00:34:35.183870 7f68dba10a80 Options.env: 0x7f68dc3ca080
+2021/03/14-00:34:35.183870 7f68dba10a80 Options.info_log: 0x20f0ca0
+2021/03/14-00:34:35.183871 7f68dba10a80 Options.max_file_opening_threads: 16
+2021/03/14-00:34:35.183872 7f68dba10a80 Options.statistics: (nil)
+2021/03/14-00:34:35.183872 7f68dba10a80 Options.use_fsync: 0
+2021/03/14-00:34:35.183873 7f68dba10a80 Options.max_log_file_size: 0
+2021/03/14-00:34:35.183874 7f68dba10a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:34:35.183874 7f68dba10a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:34:35.183875 7f68dba10a80 Options.keep_log_file_num: 1000
+2021/03/14-00:34:35.183875 7f68dba10a80 Options.recycle_log_file_num: 0
+2021/03/14-00:34:35.183876 7f68dba10a80 Options.allow_fallocate: 1
+2021/03/14-00:34:35.183876 7f68dba10a80 Options.allow_mmap_reads: 0
+2021/03/14-00:34:35.183877 7f68dba10a80 Options.allow_mmap_writes: 0
+2021/03/14-00:34:35.183878 7f68dba10a80 Options.use_direct_reads: 0
+2021/03/14-00:34:35.183878 7f68dba10a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:34:35.183879 7f68dba10a80 Options.create_missing_column_families: 0
+2021/03/14-00:34:35.183879 7f68dba10a80 Options.db_log_dir:
+2021/03/14-00:34:35.183880 7f68dba10a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:34:35.183880 7f68dba10a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:34:35.183881 7f68dba10a80 Options.max_subcompactions: 1
+2021/03/14-00:34:35.183882 7f68dba10a80 Options.max_background_flushes: -1
+2021/03/14-00:34:35.183882 7f68dba10a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:34:35.183883 7f68dba10a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:34:35.183883 7f68dba10a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:34:35.183884 7f68dba10a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:34:35.183884 7f68dba10a80 Options.advise_random_on_open: 1
+2021/03/14-00:34:35.183885 7f68dba10a80 Options.db_write_buffer_size: 0
+2021/03/14-00:34:35.183885 7f68dba10a80 Options.write_buffer_manager: 0x20d8b90
+2021/03/14-00:34:35.183886 7f68dba10a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:34:35.183887 7f68dba10a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:34:35.183887 7f68dba10a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:34:35.183888 7f68dba10a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:34:35.183888 7f68dba10a80 Options.rate_limiter: (nil)
+2021/03/14-00:34:35.183890 7f68dba10a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:34:35.183897 7f68dba10a80 Options.wal_recovery_mode: 2
+2021/03/14-00:34:35.183898 7f68dba10a80 Options.enable_thread_tracking: 0
+2021/03/14-00:34:35.183898 7f68dba10a80 Options.enable_pipelined_write: 0
+2021/03/14-00:34:35.183899 7f68dba10a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:34:35.183899 7f68dba10a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:34:35.183900 7f68dba10a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:34:35.183901 7f68dba10a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:34:35.183901 7f68dba10a80 Options.row_cache: None
+2021/03/14-00:34:35.183902 7f68dba10a80 Options.wal_filter: None
+2021/03/14-00:34:35.183902 7f68dba10a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:34:35.183903 7f68dba10a80 Options.allow_ingest_behind: 0
+2021/03/14-00:34:35.183903 7f68dba10a80 Options.preserve_deletes: 0
+2021/03/14-00:34:35.183904 7f68dba10a80 Options.two_write_queues: 0
+2021/03/14-00:34:35.183904 7f68dba10a80 Options.manual_wal_flush: 0
+2021/03/14-00:34:35.183905 7f68dba10a80 Options.max_background_jobs: 16
+2021/03/14-00:34:35.183906 7f68dba10a80 Options.max_background_compactions: -1
+2021/03/14-00:34:35.183907 7f68dba10a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:34:35.183907 7f68dba10a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:34:35.183908 7f68dba10a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:34:35.183908 7f68dba10a80 Options.max_total_wal_size: 0
+2021/03/14-00:34:35.183909 7f68dba10a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:34:35.183909 7f68dba10a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:34:35.183910 7f68dba10a80 Options.max_open_files: -1
+2021/03/14-00:34:35.183911 7f68dba10a80 Options.bytes_per_sync: 0
+2021/03/14-00:34:35.183911 7f68dba10a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:34:35.183912 7f68dba10a80 Options.compaction_readahead_size: 0
+2021/03/14-00:34:35.183912 7f68dba10a80 Compression algorithms supported:
+2021/03/14-00:34:35.183913 7f68dba10a80 Snappy supported: 1
+2021/03/14-00:34:35.183913 7f68dba10a80 Zlib supported: 1
+2021/03/14-00:34:35.183914 7f68dba10a80 Bzip supported: 1
+2021/03/14-00:34:35.183915 7f68dba10a80 LZ4 supported: 1
+2021/03/14-00:34:35.183915 7f68dba10a80 ZSTDNotFinal supported: 1
+2021/03/14-00:34:35.183919 7f68dba10a80 ZSTD supported: 1
+2021/03/14-00:34:35.183922 7f68dba10a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:34:35.183923 7f68dba10a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:34:35.184010 7f68dba10a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:34:35.184064 7f68dba10a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:34:35.184066 7f68dba10a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:34:35.184066 7f68dba10a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:34:35.184067 7f68dba10a80 Options.compaction_filter: None
+2021/03/14-00:34:35.184068 7f68dba10a80 Options.compaction_filter_factory: None
+2021/03/14-00:34:35.184068 7f68dba10a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:34:35.184069 7f68dba10a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:34:35.184082 7f68dba10a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x20e8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20cdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:34:35.184083 7f68dba10a80 Options.write_buffer_size: 134217728
+2021/03/14-00:34:35.184084 7f68dba10a80 Options.max_write_buffer_number: 6
+2021/03/14-00:34:35.184084 7f68dba10a80 Options.compression[0]: NoCompression
+2021/03/14-00:34:35.184085 7f68dba10a80 Options.compression[1]: NoCompression
+2021/03/14-00:34:35.184086 7f68dba10a80 Options.compression[2]: Snappy
+2021/03/14-00:34:35.184087 7f68dba10a80 Options.compression[3]: Snappy
+2021/03/14-00:34:35.184087 7f68dba10a80 Options.compression[4]: Snappy
+2021/03/14-00:34:35.184088 7f68dba10a80 Options.compression[5]: Snappy
+2021/03/14-00:34:35.184088 7f68dba10a80 Options.compression[6]: Snappy
+2021/03/14-00:34:35.184089 7f68dba10a80 Options.bottommost_compression: Disabled
+2021/03/14-00:34:35.184090 7f68dba10a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:34:35.184090 7f68dba10a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:34:35.184091 7f68dba10a80 Options.num_levels: 7
+2021/03/14-00:34:35.184091 7f68dba10a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:34:35.184092 7f68dba10a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:34:35.184093 7f68dba10a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:34:35.184093 7f68dba10a80 Options.compression_opts.level: -1
+2021/03/14-00:34:35.184094 7f68dba10a80 Options.compression_opts.strategy: 0
+2021/03/14-00:34:35.184094 7f68dba10a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:34:35.184095 7f68dba10a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:34:35.184095 7f68dba10a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:34:35.184096 7f68dba10a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:34:35.184097 7f68dba10a80 Options.target_file_size_base: 67108864
+2021/03/14-00:34:35.184097 7f68dba10a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:34:35.184098 7f68dba10a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:34:35.184098 7f68dba10a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:34:35.184099 7f68dba10a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:34:35.184100 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:34:35.184108 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:34:35.184109 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:34:35.184109 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:34:35.184110 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:34:35.184110 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:34:35.184111 7f68dba10a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:34:35.184112 7f68dba10a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:34:35.184112 7f68dba10a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:34:35.184113 7f68dba10a80 Options.arena_block_size: 16777216
+2021/03/14-00:34:35.184113 7f68dba10a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:34:35.184114 7f68dba10a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:34:35.184114 7f68dba10a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:34:35.184115 7f68dba10a80 Options.disable_auto_compactions: 0
+2021/03/14-00:34:35.184117 7f68dba10a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:34:35.184117 7f68dba10a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:34:35.184118 7f68dba10a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:34:35.184118 7f68dba10a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:34:35.184119 7f68dba10a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:34:35.184120 7f68dba10a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:34:35.184120 7f68dba10a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:34:35.184121 7f68dba10a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:34:35.184122 7f68dba10a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:34:35.184122 7f68dba10a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:34:35.184123 7f68dba10a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:34:35.184123 7f68dba10a80 Options.table_properties_collectors:
+2021/03/14-00:34:35.184124 7f68dba10a80 Options.inplace_update_support: 0
+2021/03/14-00:34:35.184124 7f68dba10a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:34:35.184125 7f68dba10a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:34:35.184126 7f68dba10a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:34:35.184126 7f68dba10a80 Options.bloom_locality: 0
+2021/03/14-00:34:35.184127 7f68dba10a80 Options.max_successive_merges: 0
+2021/03/14-00:34:35.184127 7f68dba10a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:34:35.184128 7f68dba10a80 Options.paranoid_file_checks: 0
+2021/03/14-00:34:35.184129 7f68dba10a80 Options.force_consistency_checks: 0
+2021/03/14-00:34:35.184129 7f68dba10a80 Options.report_bg_io_stats: 0
+2021/03/14-00:34:35.184515 7f68dba10a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:34:35.184517 7f68dba10a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:34:35.184624 7f68dba10a80 EVENT_LOG_v1 {"time_micros": 1615678475184611, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:34:35.184629 7f68dba10a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:34:35.872164 7f68dba10a80 EVENT_LOG_v1 {"time_micros": 1615678475872160, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678487807030 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678487807030
new file mode 100644
index 0000000..6ddf8bb
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678487807030
@@ -0,0 +1,186 @@
+2021/03/14-00:34:47.117793 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:34:47.117848 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:34:47.117849 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:34:47.117852 7ffff7156a80 DB SUMMARY
+2021/03/14-00:34:47.117942 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:34:47.117943 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:34:47.117952 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:34:47.117953 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:34:47.117954 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:34:47.117959 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:34:47.117960 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:34:47.117960 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:34:47.117961 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:34:47.117961 7ffff7156a80 Options.info_log: 0xfb2fa0
+2021/03/14-00:34:47.117962 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:34:47.117963 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:34:47.117963 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:34:47.117964 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:34:47.117964 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:34:47.117965 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:34:47.117966 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:34:47.117966 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:34:47.117967 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:34:47.117967 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:34:47.117968 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:34:47.117968 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:34:47.117969 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:34:47.117970 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:34:47.117970 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:34:47.117971 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:34:47.117971 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:34:47.117972 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:34:47.117972 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:34:47.117973 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:34:47.117974 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:34:47.117974 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:34:47.117975 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:34:47.117975 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:34:47.117976 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:34:47.117976 7ffff7156a80 Options.write_buffer_manager: 0xf9aeb0
+2021/03/14-00:34:47.117977 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:34:47.117977 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:34:47.117978 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:34:47.117978 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:34:47.117979 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:34:47.117980 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:34:47.117990 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:34:47.117991 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:34:47.117992 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:34:47.117992 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:34:47.117993 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:34:47.117993 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:34:47.117994 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:34:47.117994 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:34:47.117995 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:34:47.117996 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:34:47.117996 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:34:47.117997 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:34:47.117997 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:34:47.117998 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:34:47.117999 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:34:47.117999 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:34:47.118000 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:34:47.118000 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:34:47.118001 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:34:47.118002 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:34:47.118002 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:34:47.118003 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:34:47.118003 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:34:47.118004 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:34:47.118004 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:34:47.118005 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:34:47.118006 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:34:47.118006 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:34:47.118007 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:34:47.118007 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:34:47.118008 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:34:47.118008 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:34:47.118010 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:34:47.118013 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:34:47.118015 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:34:47.118105 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:34:47.118154 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:34:47.118155 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:34:47.118156 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:34:47.118157 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:34:47.118157 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:34:47.118158 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:34:47.118159 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:34:47.118173 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfaa840)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xf8ff40
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:34:47.118174 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:34:47.118175 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:34:47.118175 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:34:47.118176 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:34:47.118177 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:34:47.118177 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:34:47.118178 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:34:47.118178 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:34:47.118179 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:34:47.118180 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:34:47.118180 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:34:47.118181 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:34:47.118181 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:34:47.118182 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:34:47.118183 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:34:47.118183 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:34:47.118184 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:34:47.118184 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:34:47.118185 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:34:47.118185 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:34:47.118186 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:34:47.118187 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:34:47.118187 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:34:47.118188 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:34:47.118188 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:34:47.118189 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:34:47.118189 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:34:47.118191 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:34:47.118198 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:34:47.118199 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:34:47.118200 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:34:47.118200 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:34:47.118201 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:34:47.118201 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:34:47.118202 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:34:47.118202 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:34:47.118203 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:34:47.118204 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:34:47.118204 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:34:47.118205 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:34:47.118205 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:34:47.118206 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:34:47.118207 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:34:47.118207 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:34:47.118208 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:34:47.118209 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:34:47.118209 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:34:47.118210 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:34:47.118210 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:34:47.118211 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:34:47.118212 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:34:47.118212 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:34:47.118213 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:34:47.118213 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:34:47.118214 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:34:47.118214 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:34:47.118215 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:34:47.118216 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:34:47.118216 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:34:47.118217 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:34:47.118217 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:34:47.118218 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:34:47.118219 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:34:47.119645 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:34:47.119649 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:34:47.119759 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678487119751, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:34:47.119765 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:34:47.800778 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678488478252 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678488478252
new file mode 100644
index 0000000..aa2ef8a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678488478252
@@ -0,0 +1,186 @@
+2021/03/14-00:34:47.807934 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:34:47.807962 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:34:47.807963 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:34:47.807964 7ffff7156a80 DB SUMMARY
+2021/03/14-00:34:47.808046 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:34:47.808047 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:34:47.808055 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:34:47.808056 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:34:47.808057 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:34:47.808061 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:34:47.808062 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:34:47.808063 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:34:47.808063 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:34:47.808064 7ffff7156a80 Options.info_log: 0xfc67b0
+2021/03/14-00:34:47.808064 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:34:47.808065 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:34:47.808066 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:34:47.808066 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:34:47.808067 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:34:47.808067 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:34:47.808068 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:34:47.808068 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:34:47.808069 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:34:47.808069 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:34:47.808070 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:34:47.808070 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:34:47.808071 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:34:47.808072 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:34:47.808072 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:34:47.808073 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:34:47.808073 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:34:47.808074 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:34:47.808074 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:34:47.808075 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:34:47.808075 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:34:47.808076 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:34:47.808076 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:34:47.808077 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:34:47.808077 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:34:47.808078 7ffff7156a80 Options.write_buffer_manager: 0xfc8a70
+2021/03/14-00:34:47.808078 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:34:47.808079 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:34:47.808079 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:34:47.808080 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:34:47.808080 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:34:47.808081 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:34:47.808088 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:34:47.808088 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:34:47.808089 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:34:47.808089 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:34:47.808090 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:34:47.808090 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:34:47.808091 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:34:47.808091 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:34:47.808092 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:34:47.808093 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:34:47.808093 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:34:47.808094 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:34:47.808094 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:34:47.808094 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:34:47.808095 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:34:47.808096 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:34:47.808096 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:34:47.808097 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:34:47.808097 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:34:47.808098 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:34:47.808098 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:34:47.808099 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:34:47.808099 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:34:47.808100 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:34:47.808100 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:34:47.808101 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:34:47.808101 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:34:47.808102 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:34:47.808102 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:34:47.808103 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:34:47.808103 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:34:47.808104 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:34:47.808105 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:34:47.808106 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:34:47.808107 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:34:47.808164 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:34:47.808199 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:34:47.808200 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:34:47.808201 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:34:47.808202 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:34:47.808202 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:34:47.808203 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:34:47.808203 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:34:47.808216 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfc80a0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xfc9570
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:34:47.808217 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:34:47.808218 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:34:47.808218 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:34:47.808219 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:34:47.808219 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:34:47.808220 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:34:47.808221 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:34:47.808221 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:34:47.808222 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:34:47.808222 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:34:47.808223 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:34:47.808223 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:34:47.808224 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:34:47.808224 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:34:47.808225 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:34:47.808225 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:34:47.808226 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:34:47.808227 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:34:47.808227 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:34:47.808228 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:34:47.808228 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:34:47.808229 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:34:47.808229 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:34:47.808230 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:34:47.808230 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:34:47.808231 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:34:47.808231 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:34:47.808233 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:34:47.808267 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:34:47.808268 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:34:47.808269 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:34:47.808269 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:34:47.808270 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:34:47.808271 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:34:47.808271 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:34:47.808272 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:34:47.808272 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:34:47.808273 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:34:47.808273 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:34:47.808274 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:34:47.808275 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:34:47.808276 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:34:47.808276 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:34:47.808277 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:34:47.808277 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:34:47.808278 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:34:47.808279 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:34:47.808279 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:34:47.808280 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:34:47.808281 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:34:47.808281 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:34:47.808282 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:34:47.808282 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:34:47.808283 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:34:47.808283 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:34:47.808284 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:34:47.808285 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:34:47.808285 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:34:47.808286 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:34:47.808287 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:34:47.808287 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:34:47.808288 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:34:47.808288 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:34:47.810189 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:34:47.810192 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:34:47.810287 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678487810285, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:34:47.810290 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:34:48.471918 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615678489165485 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678489165485
new file mode 100644
index 0000000..ade2390
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615678489165485
@@ -0,0 +1,186 @@
+2021/03/14-00:34:48.478966 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:34:48.478994 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:34:48.478995 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:34:48.478996 7ffff7156a80 DB SUMMARY
+2021/03/14-00:34:48.479080 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:34:48.479081 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:34:48.479089 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:34:48.479090 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:34:48.479091 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:34:48.479095 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:34:48.479096 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:34:48.479097 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:34:48.479097 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:34:48.479098 7ffff7156a80 Options.info_log: 0xff5ec0
+2021/03/14-00:34:48.479098 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:34:48.479099 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:34:48.479100 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:34:48.479100 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:34:48.479101 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:34:48.479101 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:34:48.479102 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:34:48.479102 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:34:48.479103 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:34:48.479103 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:34:48.479104 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:34:48.479104 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:34:48.479105 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:34:48.479105 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:34:48.479106 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:34:48.479106 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:34:48.479107 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:34:48.479107 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:34:48.479108 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:34:48.479108 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:34:48.479109 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:34:48.479110 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:34:48.479110 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:34:48.479111 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:34:48.479111 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:34:48.479112 7ffff7156a80 Options.write_buffer_manager: 0xff7d50
+2021/03/14-00:34:48.479112 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:34:48.479113 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:34:48.479113 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:34:48.479114 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:34:48.479114 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:34:48.479115 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:34:48.479121 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:34:48.479122 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:34:48.479123 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:34:48.479123 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:34:48.479124 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:34:48.479124 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:34:48.479125 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:34:48.479125 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:34:48.479126 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:34:48.479126 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:34:48.479127 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:34:48.479127 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:34:48.479128 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:34:48.479128 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:34:48.479129 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:34:48.479129 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:34:48.479130 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:34:48.479130 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:34:48.479131 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:34:48.479131 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:34:48.479132 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:34:48.479132 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:34:48.479133 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:34:48.479133 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:34:48.479134 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:34:48.479134 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:34:48.479135 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:34:48.479135 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:34:48.479136 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:34:48.479137 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:34:48.479137 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:34:48.479138 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:34:48.479138 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:34:48.479140 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:34:48.479140 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:34:48.479196 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:34:48.479231 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:34:48.479232 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:34:48.479233 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:34:48.479233 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:34:48.479234 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:34:48.479234 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:34:48.479235 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:34:48.479280 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xff7330)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xff9590
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:34:48.479281 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:34:48.479282 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:34:48.479283 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:34:48.479283 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:34:48.479284 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:34:48.479285 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:34:48.479285 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:34:48.479286 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:34:48.479286 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:34:48.479287 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:34:48.479288 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:34:48.479288 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:34:48.479289 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:34:48.479289 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:34:48.479290 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:34:48.479290 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:34:48.479291 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:34:48.479292 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:34:48.479292 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:34:48.479293 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:34:48.479293 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:34:48.479294 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:34:48.479294 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:34:48.479295 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:34:48.479296 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:34:48.479296 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:34:48.479297 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:34:48.479298 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:34:48.479307 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:34:48.479307 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:34:48.479308 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:34:48.479309 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:34:48.479309 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:34:48.479310 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:34:48.479310 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:34:48.479311 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:34:48.479311 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:34:48.479312 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:34:48.479313 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:34:48.479313 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:34:48.479314 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:34:48.479315 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:34:48.479316 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:34:48.479316 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:34:48.479317 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:34:48.479317 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:34:48.479318 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:34:48.479319 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:34:48.479319 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:34:48.479320 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:34:48.479321 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:34:48.479321 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:34:48.479322 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:34:48.479322 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:34:48.479323 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:34:48.479323 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:34:48.479324 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:34:48.479325 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:34:48.479325 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:34:48.479326 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:34:48.479327 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:34:48.479327 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:34:48.479328 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:34:48.481008 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:34:48.481011 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:34:48.481101 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678488481099, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:34:48.481103 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:34:49.159069 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615679151515061 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615679151515061
new file mode 100644
index 0000000..0eebd71
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615679151515061
@@ -0,0 +1,186 @@
+2021/03/14-00:34:49.166318 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-00:34:49.166349 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:34:49.166350 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-00:34:49.166351 7ffff7156a80 DB SUMMARY
+2021/03/14-00:34:49.166441 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-00:34:49.166442 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-00:34:49.166450 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:34:49.166451 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:34:49.166452 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:34:49.166456 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-00:34:49.166457 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-00:34:49.166458 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-00:34:49.166458 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-00:34:49.166459 7ffff7156a80 Options.info_log: 0x1025cc0
+2021/03/14-00:34:49.166460 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-00:34:49.166460 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-00:34:49.166461 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-00:34:49.166461 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-00:34:49.166462 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:34:49.166462 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:34:49.166463 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-00:34:49.166464 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-00:34:49.166464 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-00:34:49.166465 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-00:34:49.166465 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-00:34:49.166466 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-00:34:49.166466 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:34:49.166467 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-00:34:49.166467 7ffff7156a80 Options.db_log_dir:
+2021/03/14-00:34:49.166468 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:34:49.166468 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:34:49.166469 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-00:34:49.166469 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-00:34:49.166470 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:34:49.166471 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:34:49.166471 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:34:49.166472 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:34:49.166472 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-00:34:49.166473 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-00:34:49.166473 7ffff7156a80 Options.write_buffer_manager: 0x1045db0
+2021/03/14-00:34:49.166474 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:34:49.166474 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:34:49.166475 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:34:49.166475 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:34:49.166476 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-00:34:49.166476 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:34:49.166484 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-00:34:49.166485 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-00:34:49.166485 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-00:34:49.166486 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:34:49.166486 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:34:49.166487 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:34:49.166488 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:34:49.166488 7ffff7156a80 Options.row_cache: None
+2021/03/14-00:34:49.166489 7ffff7156a80 Options.wal_filter: None
+2021/03/14-00:34:49.166489 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:34:49.166490 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-00:34:49.166490 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-00:34:49.166491 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-00:34:49.166491 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-00:34:49.166492 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-00:34:49.166492 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-00:34:49.166493 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:34:49.166493 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:34:49.166494 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:34:49.166494 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-00:34:49.166495 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:34:49.166495 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:34:49.166496 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-00:34:49.166497 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-00:34:49.166497 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:34:49.166498 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-00:34:49.166498 7ffff7156a80 Compression algorithms supported:
+2021/03/14-00:34:49.166499 7ffff7156a80 Snappy supported: 1
+2021/03/14-00:34:49.166499 7ffff7156a80 Zlib supported: 1
+2021/03/14-00:34:49.166500 7ffff7156a80 Bzip supported: 1
+2021/03/14-00:34:49.166500 7ffff7156a80 LZ4 supported: 1
+2021/03/14-00:34:49.166501 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-00:34:49.166501 7ffff7156a80 ZSTD supported: 1
+2021/03/14-00:34:49.166503 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:34:49.166504 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:34:49.166561 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:34:49.166596 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:34:49.166598 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:34:49.166598 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:34:49.166599 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-00:34:49.166599 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-00:34:49.166600 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:34:49.166601 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:34:49.166614 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1027eb0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x10292d0
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:34:49.166615 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-00:34:49.166616 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-00:34:49.166617 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-00:34:49.166617 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-00:34:49.166618 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-00:34:49.166618 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-00:34:49.166619 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-00:34:49.166620 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-00:34:49.166620 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-00:34:49.166621 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-00:34:49.166621 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:34:49.166622 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:34:49.166622 7ffff7156a80 Options.num_levels: 7
+2021/03/14-00:34:49.166623 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:34:49.166623 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:34:49.166624 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:34:49.166625 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-00:34:49.166625 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-00:34:49.166626 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:34:49.166626 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:34:49.166627 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:34:49.166627 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:34:49.166628 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-00:34:49.166628 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:34:49.166629 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:34:49.166629 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:34:49.166630 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:34:49.166631 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:34:49.166638 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:34:49.166639 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:34:49.166639 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:34:49.166640 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:34:49.166640 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:34:49.166641 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:34:49.166641 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:34:49.166642 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:34:49.166643 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-00:34:49.166643 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:34:49.166644 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:34:49.166644 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:34:49.166645 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-00:34:49.166646 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:34:49.166646 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:34:49.166647 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:34:49.166647 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:34:49.166648 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:34:49.166649 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:34:49.166649 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:34:49.166650 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:34:49.166650 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:34:49.166651 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:34:49.166652 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:34:49.166652 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-00:34:49.166653 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-00:34:49.166653 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:34:49.166654 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:34:49.166655 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:34:49.166655 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-00:34:49.166656 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-00:34:49.166656 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:34:49.166657 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-00:34:49.166657 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-00:34:49.166658 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-00:34:49.168313 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:34:49.168316 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:34:49.168402 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615678489168400, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:34:49.168405 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:34:49.859931 7ffff7156a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615679152235164 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615679152235164
new file mode 100644
index 0000000..ca7674a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615679152235164
@@ -0,0 +1,186 @@
+2021/03/14-00:45:51.515556 7ff13a8c5a80 RocksDB version: 5.11.3
+2021/03/14-00:45:51.515631 7ff13a8c5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:45:51.515633 7ff13a8c5a80 Compile date Mar 13 2021
+2021/03/14-00:45:51.515640 7ff13a8c5a80 DB SUMMARY
+2021/03/14-00:45:51.515752 7ff13a8c5a80 CURRENT file: CURRENT
+2021/03/14-00:45:51.515754 7ff13a8c5a80 IDENTITY file: IDENTITY
+2021/03/14-00:45:51.515764 7ff13a8c5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:45:51.515766 7ff13a8c5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:45:51.515767 7ff13a8c5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:45:51.515773 7ff13a8c5a80 Options.error_if_exists: 0
+2021/03/14-00:45:51.515774 7ff13a8c5a80 Options.create_if_missing: 1
+2021/03/14-00:45:51.515775 7ff13a8c5a80 Options.paranoid_checks: 1
+2021/03/14-00:45:51.515775 7ff13a8c5a80 Options.env: 0x7ff13b27f080
+2021/03/14-00:45:51.515776 7ff13a8c5a80 Options.info_log: 0x1cc2ca0
+2021/03/14-00:45:51.515777 7ff13a8c5a80 Options.max_file_opening_threads: 16
+2021/03/14-00:45:51.515777 7ff13a8c5a80 Options.statistics: (nil)
+2021/03/14-00:45:51.515778 7ff13a8c5a80 Options.use_fsync: 0
+2021/03/14-00:45:51.515779 7ff13a8c5a80 Options.max_log_file_size: 0
+2021/03/14-00:45:51.515779 7ff13a8c5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:45:51.515780 7ff13a8c5a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:45:51.515781 7ff13a8c5a80 Options.keep_log_file_num: 1000
+2021/03/14-00:45:51.515782 7ff13a8c5a80 Options.recycle_log_file_num: 0
+2021/03/14-00:45:51.515782 7ff13a8c5a80 Options.allow_fallocate: 1
+2021/03/14-00:45:51.515783 7ff13a8c5a80 Options.allow_mmap_reads: 0
+2021/03/14-00:45:51.515784 7ff13a8c5a80 Options.allow_mmap_writes: 0
+2021/03/14-00:45:51.515784 7ff13a8c5a80 Options.use_direct_reads: 0
+2021/03/14-00:45:51.515785 7ff13a8c5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:45:51.515786 7ff13a8c5a80 Options.create_missing_column_families: 0
+2021/03/14-00:45:51.515786 7ff13a8c5a80 Options.db_log_dir:
+2021/03/14-00:45:51.515787 7ff13a8c5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:45:51.515787 7ff13a8c5a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:45:51.515788 7ff13a8c5a80 Options.max_subcompactions: 1
+2021/03/14-00:45:51.515789 7ff13a8c5a80 Options.max_background_flushes: -1
+2021/03/14-00:45:51.515790 7ff13a8c5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:45:51.515790 7ff13a8c5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:45:51.515791 7ff13a8c5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:45:51.515792 7ff13a8c5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:45:51.515792 7ff13a8c5a80 Options.advise_random_on_open: 1
+2021/03/14-00:45:51.515793 7ff13a8c5a80 Options.db_write_buffer_size: 0
+2021/03/14-00:45:51.515793 7ff13a8c5a80 Options.write_buffer_manager: 0x1caab90
+2021/03/14-00:45:51.515794 7ff13a8c5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:45:51.515795 7ff13a8c5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:45:51.515795 7ff13a8c5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:45:51.515796 7ff13a8c5a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:45:51.515797 7ff13a8c5a80 Options.rate_limiter: (nil)
+2021/03/14-00:45:51.515798 7ff13a8c5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:45:51.515808 7ff13a8c5a80 Options.wal_recovery_mode: 2
+2021/03/14-00:45:51.515809 7ff13a8c5a80 Options.enable_thread_tracking: 0
+2021/03/14-00:45:51.515809 7ff13a8c5a80 Options.enable_pipelined_write: 0
+2021/03/14-00:45:51.515810 7ff13a8c5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:45:51.515810 7ff13a8c5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:45:51.515811 7ff13a8c5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:45:51.515812 7ff13a8c5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:45:51.515813 7ff13a8c5a80 Options.row_cache: None
+2021/03/14-00:45:51.515813 7ff13a8c5a80 Options.wal_filter: None
+2021/03/14-00:45:51.515814 7ff13a8c5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:45:51.515815 7ff13a8c5a80 Options.allow_ingest_behind: 0
+2021/03/14-00:45:51.515815 7ff13a8c5a80 Options.preserve_deletes: 0
+2021/03/14-00:45:51.515816 7ff13a8c5a80 Options.two_write_queues: 0
+2021/03/14-00:45:51.515816 7ff13a8c5a80 Options.manual_wal_flush: 0
+2021/03/14-00:45:51.515818 7ff13a8c5a80 Options.max_background_jobs: 16
+2021/03/14-00:45:51.515819 7ff13a8c5a80 Options.max_background_compactions: -1
+2021/03/14-00:45:51.515819 7ff13a8c5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:45:51.515820 7ff13a8c5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:45:51.515821 7ff13a8c5a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:45:51.515821 7ff13a8c5a80 Options.max_total_wal_size: 0
+2021/03/14-00:45:51.515822 7ff13a8c5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:45:51.515823 7ff13a8c5a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:45:51.515823 7ff13a8c5a80 Options.max_open_files: -1
+2021/03/14-00:45:51.515824 7ff13a8c5a80 Options.bytes_per_sync: 0
+2021/03/14-00:45:51.515825 7ff13a8c5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:45:51.515825 7ff13a8c5a80 Options.compaction_readahead_size: 0
+2021/03/14-00:45:51.515826 7ff13a8c5a80 Compression algorithms supported:
+2021/03/14-00:45:51.515827 7ff13a8c5a80 Snappy supported: 1
+2021/03/14-00:45:51.515827 7ff13a8c5a80 Zlib supported: 1
+2021/03/14-00:45:51.515828 7ff13a8c5a80 Bzip supported: 1
+2021/03/14-00:45:51.515829 7ff13a8c5a80 LZ4 supported: 1
+2021/03/14-00:45:51.515829 7ff13a8c5a80 ZSTDNotFinal supported: 1
+2021/03/14-00:45:51.515835 7ff13a8c5a80 ZSTD supported: 1
+2021/03/14-00:45:51.515839 7ff13a8c5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:45:51.515841 7ff13a8c5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:45:51.515984 7ff13a8c5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:45:51.516053 7ff13a8c5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:45:51.516055 7ff13a8c5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:45:51.516057 7ff13a8c5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:45:51.516057 7ff13a8c5a80 Options.compaction_filter: None
+2021/03/14-00:45:51.516058 7ff13a8c5a80 Options.compaction_filter_factory: None
+2021/03/14-00:45:51.516059 7ff13a8c5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:45:51.516060 7ff13a8c5a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:45:51.516076 7ff13a8c5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1cba520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1c9fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:45:51.516077 7ff13a8c5a80 Options.write_buffer_size: 134217728
+2021/03/14-00:45:51.516078 7ff13a8c5a80 Options.max_write_buffer_number: 6
+2021/03/14-00:45:51.516079 7ff13a8c5a80 Options.compression[0]: NoCompression
+2021/03/14-00:45:51.516080 7ff13a8c5a80 Options.compression[1]: NoCompression
+2021/03/14-00:45:51.516081 7ff13a8c5a80 Options.compression[2]: Snappy
+2021/03/14-00:45:51.516081 7ff13a8c5a80 Options.compression[3]: Snappy
+2021/03/14-00:45:51.516082 7ff13a8c5a80 Options.compression[4]: Snappy
+2021/03/14-00:45:51.516083 7ff13a8c5a80 Options.compression[5]: Snappy
+2021/03/14-00:45:51.516083 7ff13a8c5a80 Options.compression[6]: Snappy
+2021/03/14-00:45:51.516084 7ff13a8c5a80 Options.bottommost_compression: Disabled
+2021/03/14-00:45:51.516085 7ff13a8c5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:45:51.516086 7ff13a8c5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:45:51.516086 7ff13a8c5a80 Options.num_levels: 7
+2021/03/14-00:45:51.516087 7ff13a8c5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:45:51.516088 7ff13a8c5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:45:51.516088 7ff13a8c5a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:45:51.516089 7ff13a8c5a80 Options.compression_opts.level: -1
+2021/03/14-00:45:51.516090 7ff13a8c5a80 Options.compression_opts.strategy: 0
+2021/03/14-00:45:51.516091 7ff13a8c5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:45:51.516091 7ff13a8c5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:45:51.516092 7ff13a8c5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:45:51.516093 7ff13a8c5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:45:51.516093 7ff13a8c5a80 Options.target_file_size_base: 67108864
+2021/03/14-00:45:51.516094 7ff13a8c5a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:45:51.516095 7ff13a8c5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:45:51.516095 7ff13a8c5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:45:51.516096 7ff13a8c5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:45:51.516098 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:45:51.516107 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:45:51.516108 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:45:51.516108 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:45:51.516109 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:45:51.516109 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:45:51.516110 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:45:51.516111 7ff13a8c5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:45:51.516111 7ff13a8c5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:45:51.516112 7ff13a8c5a80 Options.arena_block_size: 16777216
+2021/03/14-00:45:51.516113 7ff13a8c5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:45:51.516114 7ff13a8c5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:45:51.516114 7ff13a8c5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:45:51.516115 7ff13a8c5a80 Options.disable_auto_compactions: 0
+2021/03/14-00:45:51.516117 7ff13a8c5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:45:51.516118 7ff13a8c5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:45:51.516118 7ff13a8c5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:45:51.516119 7ff13a8c5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:45:51.516120 7ff13a8c5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:45:51.516121 7ff13a8c5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:45:51.516121 7ff13a8c5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:45:51.516122 7ff13a8c5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:45:51.516123 7ff13a8c5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:45:51.516124 7ff13a8c5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:45:51.516125 7ff13a8c5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:45:51.516125 7ff13a8c5a80 Options.table_properties_collectors:
+2021/03/14-00:45:51.516126 7ff13a8c5a80 Options.inplace_update_support: 0
+2021/03/14-00:45:51.516127 7ff13a8c5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:45:51.516127 7ff13a8c5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:45:51.516128 7ff13a8c5a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:45:51.516129 7ff13a8c5a80 Options.bloom_locality: 0
+2021/03/14-00:45:51.516130 7ff13a8c5a80 Options.max_successive_merges: 0
+2021/03/14-00:45:51.516130 7ff13a8c5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:45:51.516131 7ff13a8c5a80 Options.paranoid_file_checks: 0
+2021/03/14-00:45:51.516132 7ff13a8c5a80 Options.force_consistency_checks: 0
+2021/03/14-00:45:51.516132 7ff13a8c5a80 Options.report_bg_io_stats: 0
+2021/03/14-00:45:51.516606 7ff13a8c5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:45:51.516609 7ff13a8c5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:45:51.516741 7ff13a8c5a80 EVENT_LOG_v1 {"time_micros": 1615679151516726, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:45:51.516749 7ff13a8c5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:45:52.223017 7ff13a8c5a80 EVENT_LOG_v1 {"time_micros": 1615679152223013, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615679152938666 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615679152938666
new file mode 100644
index 0000000..c93e163
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615679152938666
@@ -0,0 +1,186 @@
+2021/03/14-00:45:52.235550 7ff13a8c5a80 RocksDB version: 5.11.3
+2021/03/14-00:45:52.235609 7ff13a8c5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:45:52.235610 7ff13a8c5a80 Compile date Mar 13 2021
+2021/03/14-00:45:52.235615 7ff13a8c5a80 DB SUMMARY
+2021/03/14-00:45:52.235712 7ff13a8c5a80 CURRENT file: CURRENT
+2021/03/14-00:45:52.235713 7ff13a8c5a80 IDENTITY file: IDENTITY
+2021/03/14-00:45:52.235723 7ff13a8c5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:45:52.235724 7ff13a8c5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:45:52.235725 7ff13a8c5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:45:52.235731 7ff13a8c5a80 Options.error_if_exists: 0
+2021/03/14-00:45:52.235732 7ff13a8c5a80 Options.create_if_missing: 1
+2021/03/14-00:45:52.235733 7ff13a8c5a80 Options.paranoid_checks: 1
+2021/03/14-00:45:52.235733 7ff13a8c5a80 Options.env: 0x7ff13b27f080
+2021/03/14-00:45:52.235734 7ff13a8c5a80 Options.info_log: 0x1cc2ca0
+2021/03/14-00:45:52.235734 7ff13a8c5a80 Options.max_file_opening_threads: 16
+2021/03/14-00:45:52.235735 7ff13a8c5a80 Options.statistics: (nil)
+2021/03/14-00:45:52.235736 7ff13a8c5a80 Options.use_fsync: 0
+2021/03/14-00:45:52.235736 7ff13a8c5a80 Options.max_log_file_size: 0
+2021/03/14-00:45:52.235737 7ff13a8c5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:45:52.235738 7ff13a8c5a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:45:52.235738 7ff13a8c5a80 Options.keep_log_file_num: 1000
+2021/03/14-00:45:52.235739 7ff13a8c5a80 Options.recycle_log_file_num: 0
+2021/03/14-00:45:52.235740 7ff13a8c5a80 Options.allow_fallocate: 1
+2021/03/14-00:45:52.235740 7ff13a8c5a80 Options.allow_mmap_reads: 0
+2021/03/14-00:45:52.235741 7ff13a8c5a80 Options.allow_mmap_writes: 0
+2021/03/14-00:45:52.235741 7ff13a8c5a80 Options.use_direct_reads: 0
+2021/03/14-00:45:52.235742 7ff13a8c5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:45:52.235743 7ff13a8c5a80 Options.create_missing_column_families: 0
+2021/03/14-00:45:52.235743 7ff13a8c5a80 Options.db_log_dir:
+2021/03/14-00:45:52.235744 7ff13a8c5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:45:52.235744 7ff13a8c5a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:45:52.235745 7ff13a8c5a80 Options.max_subcompactions: 1
+2021/03/14-00:45:52.235746 7ff13a8c5a80 Options.max_background_flushes: -1
+2021/03/14-00:45:52.235746 7ff13a8c5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:45:52.235747 7ff13a8c5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:45:52.235747 7ff13a8c5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:45:52.235748 7ff13a8c5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:45:52.235749 7ff13a8c5a80 Options.advise_random_on_open: 1
+2021/03/14-00:45:52.235749 7ff13a8c5a80 Options.db_write_buffer_size: 0
+2021/03/14-00:45:52.235750 7ff13a8c5a80 Options.write_buffer_manager: 0x1caab90
+2021/03/14-00:45:52.235750 7ff13a8c5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:45:52.235751 7ff13a8c5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:45:52.235752 7ff13a8c5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:45:52.235752 7ff13a8c5a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:45:52.235753 7ff13a8c5a80 Options.rate_limiter: (nil)
+2021/03/14-00:45:52.235754 7ff13a8c5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:45:52.235762 7ff13a8c5a80 Options.wal_recovery_mode: 2
+2021/03/14-00:45:52.235763 7ff13a8c5a80 Options.enable_thread_tracking: 0
+2021/03/14-00:45:52.235764 7ff13a8c5a80 Options.enable_pipelined_write: 0
+2021/03/14-00:45:52.235764 7ff13a8c5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:45:52.235765 7ff13a8c5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:45:52.235765 7ff13a8c5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:45:52.235766 7ff13a8c5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:45:52.235767 7ff13a8c5a80 Options.row_cache: None
+2021/03/14-00:45:52.235767 7ff13a8c5a80 Options.wal_filter: None
+2021/03/14-00:45:52.235768 7ff13a8c5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:45:52.235769 7ff13a8c5a80 Options.allow_ingest_behind: 0
+2021/03/14-00:45:52.235769 7ff13a8c5a80 Options.preserve_deletes: 0
+2021/03/14-00:45:52.235770 7ff13a8c5a80 Options.two_write_queues: 0
+2021/03/14-00:45:52.235770 7ff13a8c5a80 Options.manual_wal_flush: 0
+2021/03/14-00:45:52.235772 7ff13a8c5a80 Options.max_background_jobs: 16
+2021/03/14-00:45:52.235772 7ff13a8c5a80 Options.max_background_compactions: -1
+2021/03/14-00:45:52.235773 7ff13a8c5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:45:52.235773 7ff13a8c5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:45:52.235774 7ff13a8c5a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:45:52.235775 7ff13a8c5a80 Options.max_total_wal_size: 0
+2021/03/14-00:45:52.235775 7ff13a8c5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:45:52.235776 7ff13a8c5a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:45:52.235776 7ff13a8c5a80 Options.max_open_files: -1
+2021/03/14-00:45:52.235777 7ff13a8c5a80 Options.bytes_per_sync: 0
+2021/03/14-00:45:52.235778 7ff13a8c5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:45:52.235778 7ff13a8c5a80 Options.compaction_readahead_size: 0
+2021/03/14-00:45:52.235779 7ff13a8c5a80 Compression algorithms supported:
+2021/03/14-00:45:52.235779 7ff13a8c5a80 Snappy supported: 1
+2021/03/14-00:45:52.235780 7ff13a8c5a80 Zlib supported: 1
+2021/03/14-00:45:52.235781 7ff13a8c5a80 Bzip supported: 1
+2021/03/14-00:45:52.235781 7ff13a8c5a80 LZ4 supported: 1
+2021/03/14-00:45:52.235782 7ff13a8c5a80 ZSTDNotFinal supported: 1
+2021/03/14-00:45:52.235786 7ff13a8c5a80 ZSTD supported: 1
+2021/03/14-00:45:52.235789 7ff13a8c5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:45:52.235790 7ff13a8c5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:45:52.235880 7ff13a8c5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:45:52.235936 7ff13a8c5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:45:52.235938 7ff13a8c5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:45:52.235939 7ff13a8c5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:45:52.235939 7ff13a8c5a80 Options.compaction_filter: None
+2021/03/14-00:45:52.235940 7ff13a8c5a80 Options.compaction_filter_factory: None
+2021/03/14-00:45:52.235941 7ff13a8c5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:45:52.235942 7ff13a8c5a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:45:52.235956 7ff13a8c5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1cba520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1c9fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:45:52.235957 7ff13a8c5a80 Options.write_buffer_size: 134217728
+2021/03/14-00:45:52.235958 7ff13a8c5a80 Options.max_write_buffer_number: 6
+2021/03/14-00:45:52.235958 7ff13a8c5a80 Options.compression[0]: NoCompression
+2021/03/14-00:45:52.235959 7ff13a8c5a80 Options.compression[1]: NoCompression
+2021/03/14-00:45:52.235960 7ff13a8c5a80 Options.compression[2]: Snappy
+2021/03/14-00:45:52.235960 7ff13a8c5a80 Options.compression[3]: Snappy
+2021/03/14-00:45:52.235961 7ff13a8c5a80 Options.compression[4]: Snappy
+2021/03/14-00:45:52.235962 7ff13a8c5a80 Options.compression[5]: Snappy
+2021/03/14-00:45:52.235962 7ff13a8c5a80 Options.compression[6]: Snappy
+2021/03/14-00:45:52.235963 7ff13a8c5a80 Options.bottommost_compression: Disabled
+2021/03/14-00:45:52.235964 7ff13a8c5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:45:52.235964 7ff13a8c5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:45:52.235965 7ff13a8c5a80 Options.num_levels: 7
+2021/03/14-00:45:52.235965 7ff13a8c5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:45:52.235966 7ff13a8c5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:45:52.235967 7ff13a8c5a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:45:52.235967 7ff13a8c5a80 Options.compression_opts.level: -1
+2021/03/14-00:45:52.235968 7ff13a8c5a80 Options.compression_opts.strategy: 0
+2021/03/14-00:45:52.235969 7ff13a8c5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:45:52.235969 7ff13a8c5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:45:52.235970 7ff13a8c5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:45:52.235970 7ff13a8c5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:45:52.235971 7ff13a8c5a80 Options.target_file_size_base: 67108864
+2021/03/14-00:45:52.235972 7ff13a8c5a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:45:52.235972 7ff13a8c5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:45:52.235973 7ff13a8c5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:45:52.235974 7ff13a8c5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:45:52.235975 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:45:52.235983 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:45:52.235984 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:45:52.235985 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:45:52.235985 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:45:52.235986 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:45:52.235986 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:45:52.235987 7ff13a8c5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:45:52.235988 7ff13a8c5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:45:52.235988 7ff13a8c5a80 Options.arena_block_size: 16777216
+2021/03/14-00:45:52.235989 7ff13a8c5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:45:52.235989 7ff13a8c5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:45:52.235990 7ff13a8c5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:45:52.235991 7ff13a8c5a80 Options.disable_auto_compactions: 0
+2021/03/14-00:45:52.235992 7ff13a8c5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:45:52.235993 7ff13a8c5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:45:52.235994 7ff13a8c5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:45:52.235994 7ff13a8c5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:45:52.235995 7ff13a8c5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:45:52.235996 7ff13a8c5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:45:52.235996 7ff13a8c5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:45:52.235997 7ff13a8c5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:45:52.235998 7ff13a8c5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:45:52.235998 7ff13a8c5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:45:52.235999 7ff13a8c5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:45:52.236000 7ff13a8c5a80 Options.table_properties_collectors:
+2021/03/14-00:45:52.236000 7ff13a8c5a80 Options.inplace_update_support: 0
+2021/03/14-00:45:52.236001 7ff13a8c5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:45:52.236001 7ff13a8c5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:45:52.236002 7ff13a8c5a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:45:52.236003 7ff13a8c5a80 Options.bloom_locality: 0
+2021/03/14-00:45:52.236003 7ff13a8c5a80 Options.max_successive_merges: 0
+2021/03/14-00:45:52.236004 7ff13a8c5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:45:52.236005 7ff13a8c5a80 Options.paranoid_file_checks: 0
+2021/03/14-00:45:52.236005 7ff13a8c5a80 Options.force_consistency_checks: 0
+2021/03/14-00:45:52.236006 7ff13a8c5a80 Options.report_bg_io_stats: 0
+2021/03/14-00:45:52.236428 7ff13a8c5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:45:52.236431 7ff13a8c5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:45:52.236538 7ff13a8c5a80 EVENT_LOG_v1 {"time_micros": 1615679152236527, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:45:52.236544 7ff13a8c5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:45:52.926871 7ff13a8c5a80 EVENT_LOG_v1 {"time_micros": 1615679152926867, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615679153649637 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615679153649637
new file mode 100644
index 0000000..90232ac
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615679153649637
@@ -0,0 +1,186 @@
+2021/03/14-00:45:52.939011 7ff13a8c5a80 RocksDB version: 5.11.3
+2021/03/14-00:45:52.939065 7ff13a8c5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:45:52.939066 7ff13a8c5a80 Compile date Mar 13 2021
+2021/03/14-00:45:52.939071 7ff13a8c5a80 DB SUMMARY
+2021/03/14-00:45:52.939164 7ff13a8c5a80 CURRENT file: CURRENT
+2021/03/14-00:45:52.939165 7ff13a8c5a80 IDENTITY file: IDENTITY
+2021/03/14-00:45:52.939174 7ff13a8c5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:45:52.939175 7ff13a8c5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:45:52.939176 7ff13a8c5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:45:52.939181 7ff13a8c5a80 Options.error_if_exists: 0
+2021/03/14-00:45:52.939182 7ff13a8c5a80 Options.create_if_missing: 1
+2021/03/14-00:45:52.939183 7ff13a8c5a80 Options.paranoid_checks: 1
+2021/03/14-00:45:52.939183 7ff13a8c5a80 Options.env: 0x7ff13b27f080
+2021/03/14-00:45:52.939184 7ff13a8c5a80 Options.info_log: 0x1cc2ca0
+2021/03/14-00:45:52.939185 7ff13a8c5a80 Options.max_file_opening_threads: 16
+2021/03/14-00:45:52.939185 7ff13a8c5a80 Options.statistics: (nil)
+2021/03/14-00:45:52.939186 7ff13a8c5a80 Options.use_fsync: 0
+2021/03/14-00:45:52.939186 7ff13a8c5a80 Options.max_log_file_size: 0
+2021/03/14-00:45:52.939187 7ff13a8c5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:45:52.939188 7ff13a8c5a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:45:52.939188 7ff13a8c5a80 Options.keep_log_file_num: 1000
+2021/03/14-00:45:52.939189 7ff13a8c5a80 Options.recycle_log_file_num: 0
+2021/03/14-00:45:52.939189 7ff13a8c5a80 Options.allow_fallocate: 1
+2021/03/14-00:45:52.939190 7ff13a8c5a80 Options.allow_mmap_reads: 0
+2021/03/14-00:45:52.939191 7ff13a8c5a80 Options.allow_mmap_writes: 0
+2021/03/14-00:45:52.939191 7ff13a8c5a80 Options.use_direct_reads: 0
+2021/03/14-00:45:52.939192 7ff13a8c5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:45:52.939192 7ff13a8c5a80 Options.create_missing_column_families: 0
+2021/03/14-00:45:52.939193 7ff13a8c5a80 Options.db_log_dir:
+2021/03/14-00:45:52.939193 7ff13a8c5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:45:52.939194 7ff13a8c5a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:45:52.939194 7ff13a8c5a80 Options.max_subcompactions: 1
+2021/03/14-00:45:52.939195 7ff13a8c5a80 Options.max_background_flushes: -1
+2021/03/14-00:45:52.939196 7ff13a8c5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:45:52.939196 7ff13a8c5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:45:52.939197 7ff13a8c5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:45:52.939197 7ff13a8c5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:45:52.939198 7ff13a8c5a80 Options.advise_random_on_open: 1
+2021/03/14-00:45:52.939198 7ff13a8c5a80 Options.db_write_buffer_size: 0
+2021/03/14-00:45:52.939199 7ff13a8c5a80 Options.write_buffer_manager: 0x1caab90
+2021/03/14-00:45:52.939200 7ff13a8c5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:45:52.939200 7ff13a8c5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:45:52.939201 7ff13a8c5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:45:52.939201 7ff13a8c5a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:45:52.939202 7ff13a8c5a80 Options.rate_limiter: (nil)
+2021/03/14-00:45:52.939203 7ff13a8c5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:45:52.939211 7ff13a8c5a80 Options.wal_recovery_mode: 2
+2021/03/14-00:45:52.939212 7ff13a8c5a80 Options.enable_thread_tracking: 0
+2021/03/14-00:45:52.939212 7ff13a8c5a80 Options.enable_pipelined_write: 0
+2021/03/14-00:45:52.939213 7ff13a8c5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:45:52.939213 7ff13a8c5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:45:52.939214 7ff13a8c5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:45:52.939214 7ff13a8c5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:45:52.939215 7ff13a8c5a80 Options.row_cache: None
+2021/03/14-00:45:52.939215 7ff13a8c5a80 Options.wal_filter: None
+2021/03/14-00:45:52.939216 7ff13a8c5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:45:52.939217 7ff13a8c5a80 Options.allow_ingest_behind: 0
+2021/03/14-00:45:52.939217 7ff13a8c5a80 Options.preserve_deletes: 0
+2021/03/14-00:45:52.939218 7ff13a8c5a80 Options.two_write_queues: 0
+2021/03/14-00:45:52.939218 7ff13a8c5a80 Options.manual_wal_flush: 0
+2021/03/14-00:45:52.939219 7ff13a8c5a80 Options.max_background_jobs: 16
+2021/03/14-00:45:52.939220 7ff13a8c5a80 Options.max_background_compactions: -1
+2021/03/14-00:45:52.939221 7ff13a8c5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:45:52.939221 7ff13a8c5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:45:52.939222 7ff13a8c5a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:45:52.939222 7ff13a8c5a80 Options.max_total_wal_size: 0
+2021/03/14-00:45:52.939223 7ff13a8c5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:45:52.939223 7ff13a8c5a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:45:52.939224 7ff13a8c5a80 Options.max_open_files: -1
+2021/03/14-00:45:52.939225 7ff13a8c5a80 Options.bytes_per_sync: 0
+2021/03/14-00:45:52.939225 7ff13a8c5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:45:52.939226 7ff13a8c5a80 Options.compaction_readahead_size: 0
+2021/03/14-00:45:52.939226 7ff13a8c5a80 Compression algorithms supported:
+2021/03/14-00:45:52.939227 7ff13a8c5a80 Snappy supported: 1
+2021/03/14-00:45:52.939227 7ff13a8c5a80 Zlib supported: 1
+2021/03/14-00:45:52.939228 7ff13a8c5a80 Bzip supported: 1
+2021/03/14-00:45:52.939228 7ff13a8c5a80 LZ4 supported: 1
+2021/03/14-00:45:52.939229 7ff13a8c5a80 ZSTDNotFinal supported: 1
+2021/03/14-00:45:52.939233 7ff13a8c5a80 ZSTD supported: 1
+2021/03/14-00:45:52.939236 7ff13a8c5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:45:52.939237 7ff13a8c5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:45:52.939332 7ff13a8c5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:45:52.939386 7ff13a8c5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:45:52.939387 7ff13a8c5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:45:52.939388 7ff13a8c5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:45:52.939389 7ff13a8c5a80 Options.compaction_filter: None
+2021/03/14-00:45:52.939390 7ff13a8c5a80 Options.compaction_filter_factory: None
+2021/03/14-00:45:52.939390 7ff13a8c5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:45:52.939391 7ff13a8c5a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:45:52.939404 7ff13a8c5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1cba520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1c9fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:45:52.939405 7ff13a8c5a80 Options.write_buffer_size: 134217728
+2021/03/14-00:45:52.939406 7ff13a8c5a80 Options.max_write_buffer_number: 6
+2021/03/14-00:45:52.939406 7ff13a8c5a80 Options.compression[0]: NoCompression
+2021/03/14-00:45:52.939407 7ff13a8c5a80 Options.compression[1]: NoCompression
+2021/03/14-00:45:52.939408 7ff13a8c5a80 Options.compression[2]: Snappy
+2021/03/14-00:45:52.939408 7ff13a8c5a80 Options.compression[3]: Snappy
+2021/03/14-00:45:52.939409 7ff13a8c5a80 Options.compression[4]: Snappy
+2021/03/14-00:45:52.939409 7ff13a8c5a80 Options.compression[5]: Snappy
+2021/03/14-00:45:52.939410 7ff13a8c5a80 Options.compression[6]: Snappy
+2021/03/14-00:45:52.939411 7ff13a8c5a80 Options.bottommost_compression: Disabled
+2021/03/14-00:45:52.939411 7ff13a8c5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:45:52.939412 7ff13a8c5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:45:52.939413 7ff13a8c5a80 Options.num_levels: 7
+2021/03/14-00:45:52.939413 7ff13a8c5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:45:52.939414 7ff13a8c5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:45:52.939414 7ff13a8c5a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:45:52.939415 7ff13a8c5a80 Options.compression_opts.level: -1
+2021/03/14-00:45:52.939415 7ff13a8c5a80 Options.compression_opts.strategy: 0
+2021/03/14-00:45:52.939416 7ff13a8c5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:45:52.939417 7ff13a8c5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:45:52.939417 7ff13a8c5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:45:52.939418 7ff13a8c5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:45:52.939418 7ff13a8c5a80 Options.target_file_size_base: 67108864
+2021/03/14-00:45:52.939419 7ff13a8c5a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:45:52.939420 7ff13a8c5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:45:52.939420 7ff13a8c5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:45:52.939421 7ff13a8c5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:45:52.939422 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:45:52.939430 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:45:52.939431 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:45:52.939432 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:45:52.939432 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:45:52.939433 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:45:52.939433 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:45:52.939434 7ff13a8c5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:45:52.939434 7ff13a8c5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:45:52.939435 7ff13a8c5a80 Options.arena_block_size: 16777216
+2021/03/14-00:45:52.939435 7ff13a8c5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:45:52.939436 7ff13a8c5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:45:52.939437 7ff13a8c5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:45:52.939437 7ff13a8c5a80 Options.disable_auto_compactions: 0
+2021/03/14-00:45:52.939439 7ff13a8c5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:45:52.939439 7ff13a8c5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:45:52.939440 7ff13a8c5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:45:52.939441 7ff13a8c5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:45:52.939441 7ff13a8c5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:45:52.939442 7ff13a8c5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:45:52.939442 7ff13a8c5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:45:52.939443 7ff13a8c5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:45:52.939444 7ff13a8c5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:45:52.939444 7ff13a8c5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:45:52.939445 7ff13a8c5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:45:52.939446 7ff13a8c5a80 Options.table_properties_collectors:
+2021/03/14-00:45:52.939446 7ff13a8c5a80 Options.inplace_update_support: 0
+2021/03/14-00:45:52.939447 7ff13a8c5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:45:52.939447 7ff13a8c5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:45:52.939448 7ff13a8c5a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:45:52.939449 7ff13a8c5a80 Options.bloom_locality: 0
+2021/03/14-00:45:52.939449 7ff13a8c5a80 Options.max_successive_merges: 0
+2021/03/14-00:45:52.939450 7ff13a8c5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:45:52.939450 7ff13a8c5a80 Options.paranoid_file_checks: 0
+2021/03/14-00:45:52.939451 7ff13a8c5a80 Options.force_consistency_checks: 0
+2021/03/14-00:45:52.939451 7ff13a8c5a80 Options.report_bg_io_stats: 0
+2021/03/14-00:45:52.939834 7ff13a8c5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:45:52.939837 7ff13a8c5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:45:52.939941 7ff13a8c5a80 EVENT_LOG_v1 {"time_micros": 1615679152939930, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:45:52.939946 7ff13a8c5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:45:53.637728 7ff13a8c5a80 EVENT_LOG_v1 {"time_micros": 1615679153637724, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680002821346 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680002821346
new file mode 100644
index 0000000..206471f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680002821346
@@ -0,0 +1,186 @@
+2021/03/14-00:45:53.650024 7ff13a8c5a80 RocksDB version: 5.11.3
+2021/03/14-00:45:53.650078 7ff13a8c5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-00:45:53.650080 7ff13a8c5a80 Compile date Mar 13 2021
+2021/03/14-00:45:53.650084 7ff13a8c5a80 DB SUMMARY
+2021/03/14-00:45:53.650180 7ff13a8c5a80 CURRENT file: CURRENT
+2021/03/14-00:45:53.650181 7ff13a8c5a80 IDENTITY file: IDENTITY
+2021/03/14-00:45:53.650190 7ff13a8c5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-00:45:53.650191 7ff13a8c5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-00:45:53.650192 7ff13a8c5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-00:45:53.650198 7ff13a8c5a80 Options.error_if_exists: 0
+2021/03/14-00:45:53.650199 7ff13a8c5a80 Options.create_if_missing: 1
+2021/03/14-00:45:53.650199 7ff13a8c5a80 Options.paranoid_checks: 1
+2021/03/14-00:45:53.650200 7ff13a8c5a80 Options.env: 0x7ff13b27f080
+2021/03/14-00:45:53.650200 7ff13a8c5a80 Options.info_log: 0x1cc2ca0
+2021/03/14-00:45:53.650201 7ff13a8c5a80 Options.max_file_opening_threads: 16
+2021/03/14-00:45:53.650202 7ff13a8c5a80 Options.statistics: (nil)
+2021/03/14-00:45:53.650203 7ff13a8c5a80 Options.use_fsync: 0
+2021/03/14-00:45:53.650203 7ff13a8c5a80 Options.max_log_file_size: 0
+2021/03/14-00:45:53.650204 7ff13a8c5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-00:45:53.650204 7ff13a8c5a80 Options.log_file_time_to_roll: 0
+2021/03/14-00:45:53.650205 7ff13a8c5a80 Options.keep_log_file_num: 1000
+2021/03/14-00:45:53.650205 7ff13a8c5a80 Options.recycle_log_file_num: 0
+2021/03/14-00:45:53.650206 7ff13a8c5a80 Options.allow_fallocate: 1
+2021/03/14-00:45:53.650207 7ff13a8c5a80 Options.allow_mmap_reads: 0
+2021/03/14-00:45:53.650207 7ff13a8c5a80 Options.allow_mmap_writes: 0
+2021/03/14-00:45:53.650208 7ff13a8c5a80 Options.use_direct_reads: 0
+2021/03/14-00:45:53.650208 7ff13a8c5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-00:45:53.650209 7ff13a8c5a80 Options.create_missing_column_families: 0
+2021/03/14-00:45:53.650209 7ff13a8c5a80 Options.db_log_dir:
+2021/03/14-00:45:53.650210 7ff13a8c5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-00:45:53.650211 7ff13a8c5a80 Options.table_cache_numshardbits: 6
+2021/03/14-00:45:53.650211 7ff13a8c5a80 Options.max_subcompactions: 1
+2021/03/14-00:45:53.650212 7ff13a8c5a80 Options.max_background_flushes: -1
+2021/03/14-00:45:53.650212 7ff13a8c5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-00:45:53.650213 7ff13a8c5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-00:45:53.650213 7ff13a8c5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-00:45:53.650214 7ff13a8c5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-00:45:53.650215 7ff13a8c5a80 Options.advise_random_on_open: 1
+2021/03/14-00:45:53.650215 7ff13a8c5a80 Options.db_write_buffer_size: 0
+2021/03/14-00:45:53.650216 7ff13a8c5a80 Options.write_buffer_manager: 0x1caab90
+2021/03/14-00:45:53.650216 7ff13a8c5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-00:45:53.650217 7ff13a8c5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-00:45:53.650217 7ff13a8c5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-00:45:53.650218 7ff13a8c5a80 Options.use_adaptive_mutex: 0
+2021/03/14-00:45:53.650218 7ff13a8c5a80 Options.rate_limiter: (nil)
+2021/03/14-00:45:53.650220 7ff13a8c5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-00:45:53.650228 7ff13a8c5a80 Options.wal_recovery_mode: 2
+2021/03/14-00:45:53.650228 7ff13a8c5a80 Options.enable_thread_tracking: 0
+2021/03/14-00:45:53.650229 7ff13a8c5a80 Options.enable_pipelined_write: 0
+2021/03/14-00:45:53.650229 7ff13a8c5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-00:45:53.650230 7ff13a8c5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-00:45:53.650231 7ff13a8c5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-00:45:53.650231 7ff13a8c5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-00:45:53.650232 7ff13a8c5a80 Options.row_cache: None
+2021/03/14-00:45:53.650232 7ff13a8c5a80 Options.wal_filter: None
+2021/03/14-00:45:53.650233 7ff13a8c5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-00:45:53.650233 7ff13a8c5a80 Options.allow_ingest_behind: 0
+2021/03/14-00:45:53.650234 7ff13a8c5a80 Options.preserve_deletes: 0
+2021/03/14-00:45:53.650234 7ff13a8c5a80 Options.two_write_queues: 0
+2021/03/14-00:45:53.650235 7ff13a8c5a80 Options.manual_wal_flush: 0
+2021/03/14-00:45:53.650236 7ff13a8c5a80 Options.max_background_jobs: 16
+2021/03/14-00:45:53.650237 7ff13a8c5a80 Options.max_background_compactions: -1
+2021/03/14-00:45:53.650243 7ff13a8c5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-00:45:53.650244 7ff13a8c5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-00:45:53.650244 7ff13a8c5a80 Options.delayed_write_rate : 16777216
+2021/03/14-00:45:53.650245 7ff13a8c5a80 Options.max_total_wal_size: 0
+2021/03/14-00:45:53.650245 7ff13a8c5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-00:45:53.650246 7ff13a8c5a80 Options.stats_dump_period_sec: 600
+2021/03/14-00:45:53.650246 7ff13a8c5a80 Options.max_open_files: -1
+2021/03/14-00:45:53.650247 7ff13a8c5a80 Options.bytes_per_sync: 0
+2021/03/14-00:45:53.650248 7ff13a8c5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-00:45:53.650248 7ff13a8c5a80 Options.compaction_readahead_size: 0
+2021/03/14-00:45:53.650249 7ff13a8c5a80 Compression algorithms supported:
+2021/03/14-00:45:53.650249 7ff13a8c5a80 Snappy supported: 1
+2021/03/14-00:45:53.650250 7ff13a8c5a80 Zlib supported: 1
+2021/03/14-00:45:53.650251 7ff13a8c5a80 Bzip supported: 1
+2021/03/14-00:45:53.650251 7ff13a8c5a80 LZ4 supported: 1
+2021/03/14-00:45:53.650252 7ff13a8c5a80 ZSTDNotFinal supported: 1
+2021/03/14-00:45:53.650256 7ff13a8c5a80 ZSTD supported: 1
+2021/03/14-00:45:53.650259 7ff13a8c5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-00:45:53.650260 7ff13a8c5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-00:45:53.650347 7ff13a8c5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-00:45:53.650400 7ff13a8c5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-00:45:53.650402 7ff13a8c5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-00:45:53.650403 7ff13a8c5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-00:45:53.650404 7ff13a8c5a80 Options.compaction_filter: None
+2021/03/14-00:45:53.650404 7ff13a8c5a80 Options.compaction_filter_factory: None
+2021/03/14-00:45:53.650405 7ff13a8c5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-00:45:53.650405 7ff13a8c5a80 Options.table_factory: BlockBasedTable
+2021/03/14-00:45:53.650419 7ff13a8c5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1cba520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1c9fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-00:45:53.650419 7ff13a8c5a80 Options.write_buffer_size: 134217728
+2021/03/14-00:45:53.650420 7ff13a8c5a80 Options.max_write_buffer_number: 6
+2021/03/14-00:45:53.650421 7ff13a8c5a80 Options.compression[0]: NoCompression
+2021/03/14-00:45:53.650421 7ff13a8c5a80 Options.compression[1]: NoCompression
+2021/03/14-00:45:53.650422 7ff13a8c5a80 Options.compression[2]: Snappy
+2021/03/14-00:45:53.650423 7ff13a8c5a80 Options.compression[3]: Snappy
+2021/03/14-00:45:53.650423 7ff13a8c5a80 Options.compression[4]: Snappy
+2021/03/14-00:45:53.650424 7ff13a8c5a80 Options.compression[5]: Snappy
+2021/03/14-00:45:53.650424 7ff13a8c5a80 Options.compression[6]: Snappy
+2021/03/14-00:45:53.650425 7ff13a8c5a80 Options.bottommost_compression: Disabled
+2021/03/14-00:45:53.650426 7ff13a8c5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-00:45:53.650426 7ff13a8c5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-00:45:53.650427 7ff13a8c5a80 Options.num_levels: 7
+2021/03/14-00:45:53.650428 7ff13a8c5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-00:45:53.650428 7ff13a8c5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-00:45:53.650429 7ff13a8c5a80 Options.compression_opts.window_bits: -14
+2021/03/14-00:45:53.650429 7ff13a8c5a80 Options.compression_opts.level: -1
+2021/03/14-00:45:53.650430 7ff13a8c5a80 Options.compression_opts.strategy: 0
+2021/03/14-00:45:53.650430 7ff13a8c5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-00:45:53.650431 7ff13a8c5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-00:45:53.650432 7ff13a8c5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-00:45:53.650432 7ff13a8c5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-00:45:53.650433 7ff13a8c5a80 Options.target_file_size_base: 67108864
+2021/03/14-00:45:53.650433 7ff13a8c5a80 Options.target_file_size_multiplier: 1
+2021/03/14-00:45:53.650434 7ff13a8c5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-00:45:53.650434 7ff13a8c5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-00:45:53.650435 7ff13a8c5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-00:45:53.650436 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-00:45:53.650445 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-00:45:53.650445 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-00:45:53.650446 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-00:45:53.650446 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-00:45:53.650447 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-00:45:53.650448 7ff13a8c5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-00:45:53.650448 7ff13a8c5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-00:45:53.650449 7ff13a8c5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-00:45:53.650449 7ff13a8c5a80 Options.arena_block_size: 16777216
+2021/03/14-00:45:53.650450 7ff13a8c5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-00:45:53.650451 7ff13a8c5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-00:45:53.650451 7ff13a8c5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-00:45:53.650452 7ff13a8c5a80 Options.disable_auto_compactions: 0
+2021/03/14-00:45:53.650453 7ff13a8c5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-00:45:53.650454 7ff13a8c5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-00:45:53.650455 7ff13a8c5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-00:45:53.650455 7ff13a8c5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-00:45:53.650456 7ff13a8c5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-00:45:53.650456 7ff13a8c5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-00:45:53.650457 7ff13a8c5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-00:45:53.650458 7ff13a8c5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-00:45:53.650459 7ff13a8c5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-00:45:53.650459 7ff13a8c5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-00:45:53.650460 7ff13a8c5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-00:45:53.650460 7ff13a8c5a80 Options.table_properties_collectors:
+2021/03/14-00:45:53.650461 7ff13a8c5a80 Options.inplace_update_support: 0
+2021/03/14-00:45:53.650461 7ff13a8c5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-00:45:53.650462 7ff13a8c5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-00:45:53.650463 7ff13a8c5a80 Options.memtable_huge_page_size: 0
+2021/03/14-00:45:53.650464 7ff13a8c5a80 Options.bloom_locality: 0
+2021/03/14-00:45:53.650464 7ff13a8c5a80 Options.max_successive_merges: 0
+2021/03/14-00:45:53.650465 7ff13a8c5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-00:45:53.650465 7ff13a8c5a80 Options.paranoid_file_checks: 0
+2021/03/14-00:45:53.650466 7ff13a8c5a80 Options.force_consistency_checks: 0
+2021/03/14-00:45:53.650466 7ff13a8c5a80 Options.report_bg_io_stats: 0
+2021/03/14-00:45:53.650841 7ff13a8c5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-00:45:53.650843 7ff13a8c5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-00:45:53.650945 7ff13a8c5a80 EVENT_LOG_v1 {"time_micros": 1615679153650935, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-00:45:53.650950 7ff13a8c5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-00:45:54.353436 7ff13a8c5a80 EVENT_LOG_v1 {"time_micros": 1615679154353432, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680003526199 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680003526199
new file mode 100644
index 0000000..83c23b6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680003526199
@@ -0,0 +1,186 @@
+2021/03/14-01:00:02.821913 7f8294f1fa80 RocksDB version: 5.11.3
+2021/03/14-01:00:02.822000 7f8294f1fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:00:02.822002 7f8294f1fa80 Compile date Mar 13 2021
+2021/03/14-01:00:02.822005 7f8294f1fa80 DB SUMMARY
+2021/03/14-01:00:02.822119 7f8294f1fa80 CURRENT file: CURRENT
+2021/03/14-01:00:02.822120 7f8294f1fa80 IDENTITY file: IDENTITY
+2021/03/14-01:00:02.822131 7f8294f1fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:00:02.822132 7f8294f1fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:00:02.822133 7f8294f1fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:00:02.822140 7f8294f1fa80 Options.error_if_exists: 0
+2021/03/14-01:00:02.822140 7f8294f1fa80 Options.create_if_missing: 1
+2021/03/14-01:00:02.822141 7f8294f1fa80 Options.paranoid_checks: 1
+2021/03/14-01:00:02.822142 7f8294f1fa80 Options.env: 0x7f82958d9080
+2021/03/14-01:00:02.822142 7f8294f1fa80 Options.info_log: 0x1d88ca0
+2021/03/14-01:00:02.822143 7f8294f1fa80 Options.max_file_opening_threads: 16
+2021/03/14-01:00:02.822144 7f8294f1fa80 Options.statistics: (nil)
+2021/03/14-01:00:02.822145 7f8294f1fa80 Options.use_fsync: 0
+2021/03/14-01:00:02.822145 7f8294f1fa80 Options.max_log_file_size: 0
+2021/03/14-01:00:02.822146 7f8294f1fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:00:02.822147 7f8294f1fa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:00:02.822148 7f8294f1fa80 Options.keep_log_file_num: 1000
+2021/03/14-01:00:02.822148 7f8294f1fa80 Options.recycle_log_file_num: 0
+2021/03/14-01:00:02.822149 7f8294f1fa80 Options.allow_fallocate: 1
+2021/03/14-01:00:02.822150 7f8294f1fa80 Options.allow_mmap_reads: 0
+2021/03/14-01:00:02.822150 7f8294f1fa80 Options.allow_mmap_writes: 0
+2021/03/14-01:00:02.822151 7f8294f1fa80 Options.use_direct_reads: 0
+2021/03/14-01:00:02.822152 7f8294f1fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:00:02.822152 7f8294f1fa80 Options.create_missing_column_families: 0
+2021/03/14-01:00:02.822153 7f8294f1fa80 Options.db_log_dir:
+2021/03/14-01:00:02.822154 7f8294f1fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:00:02.822154 7f8294f1fa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:00:02.822155 7f8294f1fa80 Options.max_subcompactions: 1
+2021/03/14-01:00:02.822156 7f8294f1fa80 Options.max_background_flushes: -1
+2021/03/14-01:00:02.822156 7f8294f1fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:00:02.822157 7f8294f1fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:00:02.822158 7f8294f1fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:00:02.822158 7f8294f1fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:00:02.822159 7f8294f1fa80 Options.advise_random_on_open: 1
+2021/03/14-01:00:02.822160 7f8294f1fa80 Options.db_write_buffer_size: 0
+2021/03/14-01:00:02.822160 7f8294f1fa80 Options.write_buffer_manager: 0x1d70b90
+2021/03/14-01:00:02.822161 7f8294f1fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:00:02.822162 7f8294f1fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:00:02.822162 7f8294f1fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:00:02.822163 7f8294f1fa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:00:02.822163 7f8294f1fa80 Options.rate_limiter: (nil)
+2021/03/14-01:00:02.822165 7f8294f1fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:00:02.822176 7f8294f1fa80 Options.wal_recovery_mode: 2
+2021/03/14-01:00:02.822177 7f8294f1fa80 Options.enable_thread_tracking: 0
+2021/03/14-01:00:02.822177 7f8294f1fa80 Options.enable_pipelined_write: 0
+2021/03/14-01:00:02.822178 7f8294f1fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:00:02.822179 7f8294f1fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:00:02.822179 7f8294f1fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:00:02.822180 7f8294f1fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:00:02.822181 7f8294f1fa80 Options.row_cache: None
+2021/03/14-01:00:02.822181 7f8294f1fa80 Options.wal_filter: None
+2021/03/14-01:00:02.822182 7f8294f1fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:00:02.822183 7f8294f1fa80 Options.allow_ingest_behind: 0
+2021/03/14-01:00:02.822183 7f8294f1fa80 Options.preserve_deletes: 0
+2021/03/14-01:00:02.822184 7f8294f1fa80 Options.two_write_queues: 0
+2021/03/14-01:00:02.822185 7f8294f1fa80 Options.manual_wal_flush: 0
+2021/03/14-01:00:02.822186 7f8294f1fa80 Options.max_background_jobs: 16
+2021/03/14-01:00:02.822187 7f8294f1fa80 Options.max_background_compactions: -1
+2021/03/14-01:00:02.822187 7f8294f1fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:00:02.822188 7f8294f1fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:00:02.822189 7f8294f1fa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:00:02.822189 7f8294f1fa80 Options.max_total_wal_size: 0
+2021/03/14-01:00:02.822190 7f8294f1fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:00:02.822191 7f8294f1fa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:00:02.822191 7f8294f1fa80 Options.max_open_files: -1
+2021/03/14-01:00:02.822192 7f8294f1fa80 Options.bytes_per_sync: 0
+2021/03/14-01:00:02.822193 7f8294f1fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:00:02.822193 7f8294f1fa80 Options.compaction_readahead_size: 0
+2021/03/14-01:00:02.822194 7f8294f1fa80 Compression algorithms supported:
+2021/03/14-01:00:02.822195 7f8294f1fa80 Snappy supported: 1
+2021/03/14-01:00:02.822195 7f8294f1fa80 Zlib supported: 1
+2021/03/14-01:00:02.822196 7f8294f1fa80 Bzip supported: 1
+2021/03/14-01:00:02.822197 7f8294f1fa80 LZ4 supported: 1
+2021/03/14-01:00:02.822197 7f8294f1fa80 ZSTDNotFinal supported: 1
+2021/03/14-01:00:02.822203 7f8294f1fa80 ZSTD supported: 1
+2021/03/14-01:00:02.822208 7f8294f1fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:00:02.822210 7f8294f1fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:00:02.822351 7f8294f1fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:00:02.822423 7f8294f1fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:00:02.822425 7f8294f1fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:00:02.822427 7f8294f1fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:00:02.822428 7f8294f1fa80 Options.compaction_filter: None
+2021/03/14-01:00:02.822428 7f8294f1fa80 Options.compaction_filter_factory: None
+2021/03/14-01:00:02.822429 7f8294f1fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:00:02.822430 7f8294f1fa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:00:02.822447 7f8294f1fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d80520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1d65c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:00:02.822448 7f8294f1fa80 Options.write_buffer_size: 134217728
+2021/03/14-01:00:02.822449 7f8294f1fa80 Options.max_write_buffer_number: 6
+2021/03/14-01:00:02.822450 7f8294f1fa80 Options.compression[0]: NoCompression
+2021/03/14-01:00:02.822451 7f8294f1fa80 Options.compression[1]: NoCompression
+2021/03/14-01:00:02.822452 7f8294f1fa80 Options.compression[2]: Snappy
+2021/03/14-01:00:02.822452 7f8294f1fa80 Options.compression[3]: Snappy
+2021/03/14-01:00:02.822453 7f8294f1fa80 Options.compression[4]: Snappy
+2021/03/14-01:00:02.822454 7f8294f1fa80 Options.compression[5]: Snappy
+2021/03/14-01:00:02.822454 7f8294f1fa80 Options.compression[6]: Snappy
+2021/03/14-01:00:02.822455 7f8294f1fa80 Options.bottommost_compression: Disabled
+2021/03/14-01:00:02.822456 7f8294f1fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:00:02.822457 7f8294f1fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:00:02.822457 7f8294f1fa80 Options.num_levels: 7
+2021/03/14-01:00:02.822458 7f8294f1fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:00:02.822459 7f8294f1fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:00:02.822459 7f8294f1fa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:00:02.822460 7f8294f1fa80 Options.compression_opts.level: -1
+2021/03/14-01:00:02.822461 7f8294f1fa80 Options.compression_opts.strategy: 0
+2021/03/14-01:00:02.822461 7f8294f1fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:00:02.822462 7f8294f1fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:00:02.822463 7f8294f1fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:00:02.822463 7f8294f1fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:00:02.822464 7f8294f1fa80 Options.target_file_size_base: 67108864
+2021/03/14-01:00:02.822465 7f8294f1fa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:00:02.822465 7f8294f1fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:00:02.822466 7f8294f1fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:00:02.822467 7f8294f1fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:00:02.822468 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:00:02.822479 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:00:02.822480 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:00:02.822480 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:00:02.822481 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:00:02.822482 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:00:02.822482 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:00:02.822483 7f8294f1fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:00:02.822484 7f8294f1fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:00:02.822484 7f8294f1fa80 Options.arena_block_size: 16777216
+2021/03/14-01:00:02.822485 7f8294f1fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:00:02.822486 7f8294f1fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:00:02.822486 7f8294f1fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:00:02.822487 7f8294f1fa80 Options.disable_auto_compactions: 0
+2021/03/14-01:00:02.822489 7f8294f1fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:00:02.822490 7f8294f1fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:00:02.822490 7f8294f1fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:00:02.822491 7f8294f1fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:00:02.822492 7f8294f1fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:00:02.822492 7f8294f1fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:00:02.822493 7f8294f1fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:00:02.822494 7f8294f1fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:00:02.822495 7f8294f1fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:00:02.822495 7f8294f1fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:00:02.822496 7f8294f1fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:00:02.822497 7f8294f1fa80 Options.table_properties_collectors:
+2021/03/14-01:00:02.822498 7f8294f1fa80 Options.inplace_update_support: 0
+2021/03/14-01:00:02.822498 7f8294f1fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:00:02.822499 7f8294f1fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:00:02.822500 7f8294f1fa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:00:02.822500 7f8294f1fa80 Options.bloom_locality: 0
+2021/03/14-01:00:02.822501 7f8294f1fa80 Options.max_successive_merges: 0
+2021/03/14-01:00:02.822502 7f8294f1fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:00:02.822502 7f8294f1fa80 Options.paranoid_file_checks: 0
+2021/03/14-01:00:02.822503 7f8294f1fa80 Options.force_consistency_checks: 0
+2021/03/14-01:00:02.822504 7f8294f1fa80 Options.report_bg_io_stats: 0
+2021/03/14-01:00:02.823005 7f8294f1fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:00:02.823009 7f8294f1fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:00:02.823157 7f8294f1fa80 EVENT_LOG_v1 {"time_micros": 1615680002823142, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:00:02.823164 7f8294f1fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:00:03.514471 7f8294f1fa80 EVENT_LOG_v1 {"time_micros": 1615680003514468, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680004215185 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680004215185
new file mode 100644
index 0000000..6cd7b43
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680004215185
@@ -0,0 +1,186 @@
+2021/03/14-01:00:03.526552 7f8294f1fa80 RocksDB version: 5.11.3
+2021/03/14-01:00:03.526609 7f8294f1fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:00:03.526611 7f8294f1fa80 Compile date Mar 13 2021
+2021/03/14-01:00:03.526613 7f8294f1fa80 DB SUMMARY
+2021/03/14-01:00:03.526709 7f8294f1fa80 CURRENT file: CURRENT
+2021/03/14-01:00:03.526710 7f8294f1fa80 IDENTITY file: IDENTITY
+2021/03/14-01:00:03.526719 7f8294f1fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:00:03.526721 7f8294f1fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:00:03.526722 7f8294f1fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:00:03.526727 7f8294f1fa80 Options.error_if_exists: 0
+2021/03/14-01:00:03.526728 7f8294f1fa80 Options.create_if_missing: 1
+2021/03/14-01:00:03.526728 7f8294f1fa80 Options.paranoid_checks: 1
+2021/03/14-01:00:03.526729 7f8294f1fa80 Options.env: 0x7f82958d9080
+2021/03/14-01:00:03.526730 7f8294f1fa80 Options.info_log: 0x1d88ca0
+2021/03/14-01:00:03.526730 7f8294f1fa80 Options.max_file_opening_threads: 16
+2021/03/14-01:00:03.526731 7f8294f1fa80 Options.statistics: (nil)
+2021/03/14-01:00:03.526732 7f8294f1fa80 Options.use_fsync: 0
+2021/03/14-01:00:03.526732 7f8294f1fa80 Options.max_log_file_size: 0
+2021/03/14-01:00:03.526733 7f8294f1fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:00:03.526734 7f8294f1fa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:00:03.526734 7f8294f1fa80 Options.keep_log_file_num: 1000
+2021/03/14-01:00:03.526735 7f8294f1fa80 Options.recycle_log_file_num: 0
+2021/03/14-01:00:03.526735 7f8294f1fa80 Options.allow_fallocate: 1
+2021/03/14-01:00:03.526736 7f8294f1fa80 Options.allow_mmap_reads: 0
+2021/03/14-01:00:03.526737 7f8294f1fa80 Options.allow_mmap_writes: 0
+2021/03/14-01:00:03.526737 7f8294f1fa80 Options.use_direct_reads: 0
+2021/03/14-01:00:03.526738 7f8294f1fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:00:03.526738 7f8294f1fa80 Options.create_missing_column_families: 0
+2021/03/14-01:00:03.526739 7f8294f1fa80 Options.db_log_dir:
+2021/03/14-01:00:03.526739 7f8294f1fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:00:03.526740 7f8294f1fa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:00:03.526741 7f8294f1fa80 Options.max_subcompactions: 1
+2021/03/14-01:00:03.526741 7f8294f1fa80 Options.max_background_flushes: -1
+2021/03/14-01:00:03.526742 7f8294f1fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:00:03.526742 7f8294f1fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:00:03.526743 7f8294f1fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:00:03.526744 7f8294f1fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:00:03.526744 7f8294f1fa80 Options.advise_random_on_open: 1
+2021/03/14-01:00:03.526745 7f8294f1fa80 Options.db_write_buffer_size: 0
+2021/03/14-01:00:03.526745 7f8294f1fa80 Options.write_buffer_manager: 0x1d70b90
+2021/03/14-01:00:03.526746 7f8294f1fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:00:03.526746 7f8294f1fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:00:03.526747 7f8294f1fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:00:03.526748 7f8294f1fa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:00:03.526748 7f8294f1fa80 Options.rate_limiter: (nil)
+2021/03/14-01:00:03.526750 7f8294f1fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:00:03.526757 7f8294f1fa80 Options.wal_recovery_mode: 2
+2021/03/14-01:00:03.526758 7f8294f1fa80 Options.enable_thread_tracking: 0
+2021/03/14-01:00:03.526759 7f8294f1fa80 Options.enable_pipelined_write: 0
+2021/03/14-01:00:03.526759 7f8294f1fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:00:03.526760 7f8294f1fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:00:03.526760 7f8294f1fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:00:03.526761 7f8294f1fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:00:03.526761 7f8294f1fa80 Options.row_cache: None
+2021/03/14-01:00:03.526762 7f8294f1fa80 Options.wal_filter: None
+2021/03/14-01:00:03.526763 7f8294f1fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:00:03.526763 7f8294f1fa80 Options.allow_ingest_behind: 0
+2021/03/14-01:00:03.526764 7f8294f1fa80 Options.preserve_deletes: 0
+2021/03/14-01:00:03.526764 7f8294f1fa80 Options.two_write_queues: 0
+2021/03/14-01:00:03.526765 7f8294f1fa80 Options.manual_wal_flush: 0
+2021/03/14-01:00:03.526766 7f8294f1fa80 Options.max_background_jobs: 16
+2021/03/14-01:00:03.526767 7f8294f1fa80 Options.max_background_compactions: -1
+2021/03/14-01:00:03.526767 7f8294f1fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:00:03.526768 7f8294f1fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:00:03.526769 7f8294f1fa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:00:03.526769 7f8294f1fa80 Options.max_total_wal_size: 0
+2021/03/14-01:00:03.526770 7f8294f1fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:00:03.526770 7f8294f1fa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:00:03.526771 7f8294f1fa80 Options.max_open_files: -1
+2021/03/14-01:00:03.526772 7f8294f1fa80 Options.bytes_per_sync: 0
+2021/03/14-01:00:03.526772 7f8294f1fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:00:03.526773 7f8294f1fa80 Options.compaction_readahead_size: 0
+2021/03/14-01:00:03.526773 7f8294f1fa80 Compression algorithms supported:
+2021/03/14-01:00:03.526774 7f8294f1fa80 Snappy supported: 1
+2021/03/14-01:00:03.526774 7f8294f1fa80 Zlib supported: 1
+2021/03/14-01:00:03.526775 7f8294f1fa80 Bzip supported: 1
+2021/03/14-01:00:03.526776 7f8294f1fa80 LZ4 supported: 1
+2021/03/14-01:00:03.526776 7f8294f1fa80 ZSTDNotFinal supported: 1
+2021/03/14-01:00:03.526780 7f8294f1fa80 ZSTD supported: 1
+2021/03/14-01:00:03.526783 7f8294f1fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:00:03.526784 7f8294f1fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:00:03.526874 7f8294f1fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:00:03.526927 7f8294f1fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:00:03.526929 7f8294f1fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:00:03.526930 7f8294f1fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:00:03.526931 7f8294f1fa80 Options.compaction_filter: None
+2021/03/14-01:00:03.526931 7f8294f1fa80 Options.compaction_filter_factory: None
+2021/03/14-01:00:03.526932 7f8294f1fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:00:03.526933 7f8294f1fa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:00:03.526946 7f8294f1fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d80520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1d65c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:00:03.526947 7f8294f1fa80 Options.write_buffer_size: 134217728
+2021/03/14-01:00:03.526947 7f8294f1fa80 Options.max_write_buffer_number: 6
+2021/03/14-01:00:03.526948 7f8294f1fa80 Options.compression[0]: NoCompression
+2021/03/14-01:00:03.526949 7f8294f1fa80 Options.compression[1]: NoCompression
+2021/03/14-01:00:03.526950 7f8294f1fa80 Options.compression[2]: Snappy
+2021/03/14-01:00:03.526950 7f8294f1fa80 Options.compression[3]: Snappy
+2021/03/14-01:00:03.526951 7f8294f1fa80 Options.compression[4]: Snappy
+2021/03/14-01:00:03.526951 7f8294f1fa80 Options.compression[5]: Snappy
+2021/03/14-01:00:03.526952 7f8294f1fa80 Options.compression[6]: Snappy
+2021/03/14-01:00:03.526952 7f8294f1fa80 Options.bottommost_compression: Disabled
+2021/03/14-01:00:03.526953 7f8294f1fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:00:03.526954 7f8294f1fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:00:03.526954 7f8294f1fa80 Options.num_levels: 7
+2021/03/14-01:00:03.526955 7f8294f1fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:00:03.526956 7f8294f1fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:00:03.526956 7f8294f1fa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:00:03.526957 7f8294f1fa80 Options.compression_opts.level: -1
+2021/03/14-01:00:03.526957 7f8294f1fa80 Options.compression_opts.strategy: 0
+2021/03/14-01:00:03.526958 7f8294f1fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:00:03.526959 7f8294f1fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:00:03.526959 7f8294f1fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:00:03.526960 7f8294f1fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:00:03.526960 7f8294f1fa80 Options.target_file_size_base: 67108864
+2021/03/14-01:00:03.526961 7f8294f1fa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:00:03.526961 7f8294f1fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:00:03.526962 7f8294f1fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:00:03.526963 7f8294f1fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:00:03.526964 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:00:03.526972 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:00:03.526973 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:00:03.526973 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:00:03.526974 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:00:03.526974 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:00:03.526975 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:00:03.526975 7f8294f1fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:00:03.526976 7f8294f1fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:00:03.526977 7f8294f1fa80 Options.arena_block_size: 16777216
+2021/03/14-01:00:03.526977 7f8294f1fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:00:03.526978 7f8294f1fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:00:03.526978 7f8294f1fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:00:03.526979 7f8294f1fa80 Options.disable_auto_compactions: 0
+2021/03/14-01:00:03.526981 7f8294f1fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:00:03.526981 7f8294f1fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:00:03.526982 7f8294f1fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:00:03.526982 7f8294f1fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:00:03.526983 7f8294f1fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:00:03.526984 7f8294f1fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:00:03.526984 7f8294f1fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:00:03.526985 7f8294f1fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:00:03.526986 7f8294f1fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:00:03.526986 7f8294f1fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:00:03.526987 7f8294f1fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:00:03.526988 7f8294f1fa80 Options.table_properties_collectors:
+2021/03/14-01:00:03.526988 7f8294f1fa80 Options.inplace_update_support: 0
+2021/03/14-01:00:03.526989 7f8294f1fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:00:03.526989 7f8294f1fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:00:03.526990 7f8294f1fa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:00:03.526991 7f8294f1fa80 Options.bloom_locality: 0
+2021/03/14-01:00:03.526991 7f8294f1fa80 Options.max_successive_merges: 0
+2021/03/14-01:00:03.526992 7f8294f1fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:00:03.526993 7f8294f1fa80 Options.paranoid_file_checks: 0
+2021/03/14-01:00:03.526993 7f8294f1fa80 Options.force_consistency_checks: 0
+2021/03/14-01:00:03.526994 7f8294f1fa80 Options.report_bg_io_stats: 0
+2021/03/14-01:00:03.527368 7f8294f1fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:00:03.527371 7f8294f1fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:00:03.527487 7f8294f1fa80 EVENT_LOG_v1 {"time_micros": 1615680003527477, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:00:03.527492 7f8294f1fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:00:04.203232 7f8294f1fa80 EVENT_LOG_v1 {"time_micros": 1615680004203229, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680004907299 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680004907299
new file mode 100644
index 0000000..09f1bc5
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680004907299
@@ -0,0 +1,186 @@
+2021/03/14-01:00:04.215561 7f8294f1fa80 RocksDB version: 5.11.3
+2021/03/14-01:00:04.215618 7f8294f1fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:00:04.215619 7f8294f1fa80 Compile date Mar 13 2021
+2021/03/14-01:00:04.215622 7f8294f1fa80 DB SUMMARY
+2021/03/14-01:00:04.215714 7f8294f1fa80 CURRENT file: CURRENT
+2021/03/14-01:00:04.215715 7f8294f1fa80 IDENTITY file: IDENTITY
+2021/03/14-01:00:04.215725 7f8294f1fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:00:04.215726 7f8294f1fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:00:04.215726 7f8294f1fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:00:04.215732 7f8294f1fa80 Options.error_if_exists: 0
+2021/03/14-01:00:04.215733 7f8294f1fa80 Options.create_if_missing: 1
+2021/03/14-01:00:04.215733 7f8294f1fa80 Options.paranoid_checks: 1
+2021/03/14-01:00:04.215734 7f8294f1fa80 Options.env: 0x7f82958d9080
+2021/03/14-01:00:04.215735 7f8294f1fa80 Options.info_log: 0x1d88ca0
+2021/03/14-01:00:04.215735 7f8294f1fa80 Options.max_file_opening_threads: 16
+2021/03/14-01:00:04.215736 7f8294f1fa80 Options.statistics: (nil)
+2021/03/14-01:00:04.215736 7f8294f1fa80 Options.use_fsync: 0
+2021/03/14-01:00:04.215737 7f8294f1fa80 Options.max_log_file_size: 0
+2021/03/14-01:00:04.215738 7f8294f1fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:00:04.215738 7f8294f1fa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:00:04.215739 7f8294f1fa80 Options.keep_log_file_num: 1000
+2021/03/14-01:00:04.215739 7f8294f1fa80 Options.recycle_log_file_num: 0
+2021/03/14-01:00:04.215740 7f8294f1fa80 Options.allow_fallocate: 1
+2021/03/14-01:00:04.215741 7f8294f1fa80 Options.allow_mmap_reads: 0
+2021/03/14-01:00:04.215741 7f8294f1fa80 Options.allow_mmap_writes: 0
+2021/03/14-01:00:04.215742 7f8294f1fa80 Options.use_direct_reads: 0
+2021/03/14-01:00:04.215742 7f8294f1fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:00:04.215743 7f8294f1fa80 Options.create_missing_column_families: 0
+2021/03/14-01:00:04.215743 7f8294f1fa80 Options.db_log_dir:
+2021/03/14-01:00:04.215744 7f8294f1fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:00:04.215745 7f8294f1fa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:00:04.215745 7f8294f1fa80 Options.max_subcompactions: 1
+2021/03/14-01:00:04.215746 7f8294f1fa80 Options.max_background_flushes: -1
+2021/03/14-01:00:04.215746 7f8294f1fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:00:04.215747 7f8294f1fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:00:04.215747 7f8294f1fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:00:04.215748 7f8294f1fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:00:04.215749 7f8294f1fa80 Options.advise_random_on_open: 1
+2021/03/14-01:00:04.215749 7f8294f1fa80 Options.db_write_buffer_size: 0
+2021/03/14-01:00:04.215750 7f8294f1fa80 Options.write_buffer_manager: 0x1d70b90
+2021/03/14-01:00:04.215750 7f8294f1fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:00:04.215751 7f8294f1fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:00:04.215751 7f8294f1fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:00:04.215752 7f8294f1fa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:00:04.215752 7f8294f1fa80 Options.rate_limiter: (nil)
+2021/03/14-01:00:04.215754 7f8294f1fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:00:04.215761 7f8294f1fa80 Options.wal_recovery_mode: 2
+2021/03/14-01:00:04.215762 7f8294f1fa80 Options.enable_thread_tracking: 0
+2021/03/14-01:00:04.215763 7f8294f1fa80 Options.enable_pipelined_write: 0
+2021/03/14-01:00:04.215763 7f8294f1fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:00:04.215764 7f8294f1fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:00:04.215764 7f8294f1fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:00:04.215765 7f8294f1fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:00:04.215765 7f8294f1fa80 Options.row_cache: None
+2021/03/14-01:00:04.215766 7f8294f1fa80 Options.wal_filter: None
+2021/03/14-01:00:04.215767 7f8294f1fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:00:04.215767 7f8294f1fa80 Options.allow_ingest_behind: 0
+2021/03/14-01:00:04.215768 7f8294f1fa80 Options.preserve_deletes: 0
+2021/03/14-01:00:04.215768 7f8294f1fa80 Options.two_write_queues: 0
+2021/03/14-01:00:04.215769 7f8294f1fa80 Options.manual_wal_flush: 0
+2021/03/14-01:00:04.215770 7f8294f1fa80 Options.max_background_jobs: 16
+2021/03/14-01:00:04.215770 7f8294f1fa80 Options.max_background_compactions: -1
+2021/03/14-01:00:04.215771 7f8294f1fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:00:04.215772 7f8294f1fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:00:04.215772 7f8294f1fa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:00:04.215773 7f8294f1fa80 Options.max_total_wal_size: 0
+2021/03/14-01:00:04.215773 7f8294f1fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:00:04.215774 7f8294f1fa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:00:04.215775 7f8294f1fa80 Options.max_open_files: -1
+2021/03/14-01:00:04.215775 7f8294f1fa80 Options.bytes_per_sync: 0
+2021/03/14-01:00:04.215776 7f8294f1fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:00:04.215776 7f8294f1fa80 Options.compaction_readahead_size: 0
+2021/03/14-01:00:04.215777 7f8294f1fa80 Compression algorithms supported:
+2021/03/14-01:00:04.215777 7f8294f1fa80 Snappy supported: 1
+2021/03/14-01:00:04.215778 7f8294f1fa80 Zlib supported: 1
+2021/03/14-01:00:04.215779 7f8294f1fa80 Bzip supported: 1
+2021/03/14-01:00:04.215779 7f8294f1fa80 LZ4 supported: 1
+2021/03/14-01:00:04.215780 7f8294f1fa80 ZSTDNotFinal supported: 1
+2021/03/14-01:00:04.215783 7f8294f1fa80 ZSTD supported: 1
+2021/03/14-01:00:04.215786 7f8294f1fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:00:04.215788 7f8294f1fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:00:04.215878 7f8294f1fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:00:04.215930 7f8294f1fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:00:04.215932 7f8294f1fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:00:04.215933 7f8294f1fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:00:04.215933 7f8294f1fa80 Options.compaction_filter: None
+2021/03/14-01:00:04.215934 7f8294f1fa80 Options.compaction_filter_factory: None
+2021/03/14-01:00:04.215934 7f8294f1fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:00:04.215935 7f8294f1fa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:00:04.215948 7f8294f1fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d80520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1d65c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:00:04.215949 7f8294f1fa80 Options.write_buffer_size: 134217728
+2021/03/14-01:00:04.215950 7f8294f1fa80 Options.max_write_buffer_number: 6
+2021/03/14-01:00:04.215951 7f8294f1fa80 Options.compression[0]: NoCompression
+2021/03/14-01:00:04.215951 7f8294f1fa80 Options.compression[1]: NoCompression
+2021/03/14-01:00:04.215952 7f8294f1fa80 Options.compression[2]: Snappy
+2021/03/14-01:00:04.215953 7f8294f1fa80 Options.compression[3]: Snappy
+2021/03/14-01:00:04.215953 7f8294f1fa80 Options.compression[4]: Snappy
+2021/03/14-01:00:04.215954 7f8294f1fa80 Options.compression[5]: Snappy
+2021/03/14-01:00:04.215954 7f8294f1fa80 Options.compression[6]: Snappy
+2021/03/14-01:00:04.215955 7f8294f1fa80 Options.bottommost_compression: Disabled
+2021/03/14-01:00:04.215956 7f8294f1fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:00:04.215956 7f8294f1fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:00:04.215957 7f8294f1fa80 Options.num_levels: 7
+2021/03/14-01:00:04.215957 7f8294f1fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:00:04.215958 7f8294f1fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:00:04.215959 7f8294f1fa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:00:04.215959 7f8294f1fa80 Options.compression_opts.level: -1
+2021/03/14-01:00:04.215960 7f8294f1fa80 Options.compression_opts.strategy: 0
+2021/03/14-01:00:04.215960 7f8294f1fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:00:04.215961 7f8294f1fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:00:04.215961 7f8294f1fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:00:04.215962 7f8294f1fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:00:04.215963 7f8294f1fa80 Options.target_file_size_base: 67108864
+2021/03/14-01:00:04.215963 7f8294f1fa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:00:04.215964 7f8294f1fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:00:04.215964 7f8294f1fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:00:04.215965 7f8294f1fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:00:04.215966 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:00:04.215974 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:00:04.215975 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:00:04.215975 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:00:04.215976 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:00:04.215976 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:00:04.215977 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:00:04.215978 7f8294f1fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:00:04.215978 7f8294f1fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:00:04.215979 7f8294f1fa80 Options.arena_block_size: 16777216
+2021/03/14-01:00:04.215979 7f8294f1fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:00:04.215980 7f8294f1fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:00:04.215981 7f8294f1fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:00:04.215981 7f8294f1fa80 Options.disable_auto_compactions: 0
+2021/03/14-01:00:04.215983 7f8294f1fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:00:04.215984 7f8294f1fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:00:04.215984 7f8294f1fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:00:04.215985 7f8294f1fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:00:04.215985 7f8294f1fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:00:04.215986 7f8294f1fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:00:04.215987 7f8294f1fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:00:04.215987 7f8294f1fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:00:04.215988 7f8294f1fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:00:04.215989 7f8294f1fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:00:04.215989 7f8294f1fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:00:04.215990 7f8294f1fa80 Options.table_properties_collectors:
+2021/03/14-01:00:04.215990 7f8294f1fa80 Options.inplace_update_support: 0
+2021/03/14-01:00:04.215991 7f8294f1fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:00:04.215991 7f8294f1fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:00:04.215992 7f8294f1fa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:00:04.215993 7f8294f1fa80 Options.bloom_locality: 0
+2021/03/14-01:00:04.215993 7f8294f1fa80 Options.max_successive_merges: 0
+2021/03/14-01:00:04.215994 7f8294f1fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:00:04.215995 7f8294f1fa80 Options.paranoid_file_checks: 0
+2021/03/14-01:00:04.215995 7f8294f1fa80 Options.force_consistency_checks: 0
+2021/03/14-01:00:04.215996 7f8294f1fa80 Options.report_bg_io_stats: 0
+2021/03/14-01:00:04.216402 7f8294f1fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:00:04.216405 7f8294f1fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:00:04.216513 7f8294f1fa80 EVENT_LOG_v1 {"time_micros": 1615680004216503, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:00:04.216519 7f8294f1fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:00:04.894951 7f8294f1fa80 EVENT_LOG_v1 {"time_micros": 1615680004894948, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680096343648 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680096343648
new file mode 100644
index 0000000..503ef23
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680096343648
@@ -0,0 +1,186 @@
+2021/03/14-01:00:04.907654 7f8294f1fa80 RocksDB version: 5.11.3
+2021/03/14-01:00:04.907712 7f8294f1fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:00:04.907713 7f8294f1fa80 Compile date Mar 13 2021
+2021/03/14-01:00:04.907716 7f8294f1fa80 DB SUMMARY
+2021/03/14-01:00:04.907813 7f8294f1fa80 CURRENT file: CURRENT
+2021/03/14-01:00:04.907815 7f8294f1fa80 IDENTITY file: IDENTITY
+2021/03/14-01:00:04.907824 7f8294f1fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:00:04.907825 7f8294f1fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:00:04.907826 7f8294f1fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:00:04.907831 7f8294f1fa80 Options.error_if_exists: 0
+2021/03/14-01:00:04.907832 7f8294f1fa80 Options.create_if_missing: 1
+2021/03/14-01:00:04.907833 7f8294f1fa80 Options.paranoid_checks: 1
+2021/03/14-01:00:04.907833 7f8294f1fa80 Options.env: 0x7f82958d9080
+2021/03/14-01:00:04.907834 7f8294f1fa80 Options.info_log: 0x1d88ca0
+2021/03/14-01:00:04.907835 7f8294f1fa80 Options.max_file_opening_threads: 16
+2021/03/14-01:00:04.907835 7f8294f1fa80 Options.statistics: (nil)
+2021/03/14-01:00:04.907836 7f8294f1fa80 Options.use_fsync: 0
+2021/03/14-01:00:04.907836 7f8294f1fa80 Options.max_log_file_size: 0
+2021/03/14-01:00:04.907837 7f8294f1fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:00:04.907838 7f8294f1fa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:00:04.907838 7f8294f1fa80 Options.keep_log_file_num: 1000
+2021/03/14-01:00:04.907839 7f8294f1fa80 Options.recycle_log_file_num: 0
+2021/03/14-01:00:04.907840 7f8294f1fa80 Options.allow_fallocate: 1
+2021/03/14-01:00:04.907840 7f8294f1fa80 Options.allow_mmap_reads: 0
+2021/03/14-01:00:04.907841 7f8294f1fa80 Options.allow_mmap_writes: 0
+2021/03/14-01:00:04.907841 7f8294f1fa80 Options.use_direct_reads: 0
+2021/03/14-01:00:04.907842 7f8294f1fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:00:04.907842 7f8294f1fa80 Options.create_missing_column_families: 0
+2021/03/14-01:00:04.907843 7f8294f1fa80 Options.db_log_dir:
+2021/03/14-01:00:04.907843 7f8294f1fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:00:04.907844 7f8294f1fa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:00:04.907845 7f8294f1fa80 Options.max_subcompactions: 1
+2021/03/14-01:00:04.907845 7f8294f1fa80 Options.max_background_flushes: -1
+2021/03/14-01:00:04.907846 7f8294f1fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:00:04.907846 7f8294f1fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:00:04.907847 7f8294f1fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:00:04.907848 7f8294f1fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:00:04.907848 7f8294f1fa80 Options.advise_random_on_open: 1
+2021/03/14-01:00:04.907849 7f8294f1fa80 Options.db_write_buffer_size: 0
+2021/03/14-01:00:04.907849 7f8294f1fa80 Options.write_buffer_manager: 0x1d70b90
+2021/03/14-01:00:04.907850 7f8294f1fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:00:04.907851 7f8294f1fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:00:04.907851 7f8294f1fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:00:04.907852 7f8294f1fa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:00:04.907852 7f8294f1fa80 Options.rate_limiter: (nil)
+2021/03/14-01:00:04.907854 7f8294f1fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:00:04.907861 7f8294f1fa80 Options.wal_recovery_mode: 2
+2021/03/14-01:00:04.907862 7f8294f1fa80 Options.enable_thread_tracking: 0
+2021/03/14-01:00:04.907863 7f8294f1fa80 Options.enable_pipelined_write: 0
+2021/03/14-01:00:04.907863 7f8294f1fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:00:04.907864 7f8294f1fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:00:04.907864 7f8294f1fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:00:04.907865 7f8294f1fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:00:04.907865 7f8294f1fa80 Options.row_cache: None
+2021/03/14-01:00:04.907866 7f8294f1fa80 Options.wal_filter: None
+2021/03/14-01:00:04.907867 7f8294f1fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:00:04.907867 7f8294f1fa80 Options.allow_ingest_behind: 0
+2021/03/14-01:00:04.907868 7f8294f1fa80 Options.preserve_deletes: 0
+2021/03/14-01:00:04.907868 7f8294f1fa80 Options.two_write_queues: 0
+2021/03/14-01:00:04.907869 7f8294f1fa80 Options.manual_wal_flush: 0
+2021/03/14-01:00:04.907870 7f8294f1fa80 Options.max_background_jobs: 16
+2021/03/14-01:00:04.907871 7f8294f1fa80 Options.max_background_compactions: -1
+2021/03/14-01:00:04.907871 7f8294f1fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:00:04.907872 7f8294f1fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:00:04.907872 7f8294f1fa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:00:04.907873 7f8294f1fa80 Options.max_total_wal_size: 0
+2021/03/14-01:00:04.907874 7f8294f1fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:00:04.907874 7f8294f1fa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:00:04.907875 7f8294f1fa80 Options.max_open_files: -1
+2021/03/14-01:00:04.907875 7f8294f1fa80 Options.bytes_per_sync: 0
+2021/03/14-01:00:04.907876 7f8294f1fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:00:04.907876 7f8294f1fa80 Options.compaction_readahead_size: 0
+2021/03/14-01:00:04.907877 7f8294f1fa80 Compression algorithms supported:
+2021/03/14-01:00:04.907878 7f8294f1fa80 Snappy supported: 1
+2021/03/14-01:00:04.907878 7f8294f1fa80 Zlib supported: 1
+2021/03/14-01:00:04.907879 7f8294f1fa80 Bzip supported: 1
+2021/03/14-01:00:04.907879 7f8294f1fa80 LZ4 supported: 1
+2021/03/14-01:00:04.907880 7f8294f1fa80 ZSTDNotFinal supported: 1
+2021/03/14-01:00:04.907884 7f8294f1fa80 ZSTD supported: 1
+2021/03/14-01:00:04.907887 7f8294f1fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:00:04.907888 7f8294f1fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:00:04.907978 7f8294f1fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:00:04.908032 7f8294f1fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:00:04.908034 7f8294f1fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:00:04.908034 7f8294f1fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:00:04.908035 7f8294f1fa80 Options.compaction_filter: None
+2021/03/14-01:00:04.908036 7f8294f1fa80 Options.compaction_filter_factory: None
+2021/03/14-01:00:04.908036 7f8294f1fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:00:04.908037 7f8294f1fa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:00:04.908050 7f8294f1fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d80520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1d65c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:00:04.908051 7f8294f1fa80 Options.write_buffer_size: 134217728
+2021/03/14-01:00:04.908052 7f8294f1fa80 Options.max_write_buffer_number: 6
+2021/03/14-01:00:04.908053 7f8294f1fa80 Options.compression[0]: NoCompression
+2021/03/14-01:00:04.908053 7f8294f1fa80 Options.compression[1]: NoCompression
+2021/03/14-01:00:04.908054 7f8294f1fa80 Options.compression[2]: Snappy
+2021/03/14-01:00:04.908055 7f8294f1fa80 Options.compression[3]: Snappy
+2021/03/14-01:00:04.908055 7f8294f1fa80 Options.compression[4]: Snappy
+2021/03/14-01:00:04.908056 7f8294f1fa80 Options.compression[5]: Snappy
+2021/03/14-01:00:04.908056 7f8294f1fa80 Options.compression[6]: Snappy
+2021/03/14-01:00:04.908057 7f8294f1fa80 Options.bottommost_compression: Disabled
+2021/03/14-01:00:04.908058 7f8294f1fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:00:04.908058 7f8294f1fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:00:04.908059 7f8294f1fa80 Options.num_levels: 7
+2021/03/14-01:00:04.908060 7f8294f1fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:00:04.908060 7f8294f1fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:00:04.908061 7f8294f1fa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:00:04.908061 7f8294f1fa80 Options.compression_opts.level: -1
+2021/03/14-01:00:04.908062 7f8294f1fa80 Options.compression_opts.strategy: 0
+2021/03/14-01:00:04.908063 7f8294f1fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:00:04.908063 7f8294f1fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:00:04.908064 7f8294f1fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:00:04.908064 7f8294f1fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:00:04.908065 7f8294f1fa80 Options.target_file_size_base: 67108864
+2021/03/14-01:00:04.908065 7f8294f1fa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:00:04.908066 7f8294f1fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:00:04.908067 7f8294f1fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:00:04.908067 7f8294f1fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:00:04.908069 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:00:04.908076 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:00:04.908077 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:00:04.908078 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:00:04.908078 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:00:04.908079 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:00:04.908079 7f8294f1fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:00:04.908080 7f8294f1fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:00:04.908081 7f8294f1fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:00:04.908081 7f8294f1fa80 Options.arena_block_size: 16777216
+2021/03/14-01:00:04.908082 7f8294f1fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:00:04.908082 7f8294f1fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:00:04.908083 7f8294f1fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:00:04.908084 7f8294f1fa80 Options.disable_auto_compactions: 0
+2021/03/14-01:00:04.908085 7f8294f1fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:00:04.908086 7f8294f1fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:00:04.908087 7f8294f1fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:00:04.908087 7f8294f1fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:00:04.908088 7f8294f1fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:00:04.908088 7f8294f1fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:00:04.908089 7f8294f1fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:00:04.908090 7f8294f1fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:00:04.908091 7f8294f1fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:00:04.908091 7f8294f1fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:00:04.908092 7f8294f1fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:00:04.908092 7f8294f1fa80 Options.table_properties_collectors:
+2021/03/14-01:00:04.908093 7f8294f1fa80 Options.inplace_update_support: 0
+2021/03/14-01:00:04.908094 7f8294f1fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:00:04.908094 7f8294f1fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:00:04.908095 7f8294f1fa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:00:04.908096 7f8294f1fa80 Options.bloom_locality: 0
+2021/03/14-01:00:04.908096 7f8294f1fa80 Options.max_successive_merges: 0
+2021/03/14-01:00:04.908097 7f8294f1fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:00:04.908097 7f8294f1fa80 Options.paranoid_file_checks: 0
+2021/03/14-01:00:04.908098 7f8294f1fa80 Options.force_consistency_checks: 0
+2021/03/14-01:00:04.908098 7f8294f1fa80 Options.report_bg_io_stats: 0
+2021/03/14-01:00:04.908469 7f8294f1fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:00:04.908471 7f8294f1fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:00:04.908582 7f8294f1fa80 EVENT_LOG_v1 {"time_micros": 1615680004908572, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:00:04.908587 7f8294f1fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:00:05.591690 7f8294f1fa80 EVENT_LOG_v1 {"time_micros": 1615680005591687, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680097057698 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680097057698
new file mode 100644
index 0000000..61dca09
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680097057698
@@ -0,0 +1,186 @@
+2021/03/14-01:01:36.344117 7f502ea5da80 RocksDB version: 5.11.3
+2021/03/14-01:01:36.344193 7f502ea5da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:01:36.344195 7f502ea5da80 Compile date Mar 13 2021
+2021/03/14-01:01:36.344199 7f502ea5da80 DB SUMMARY
+2021/03/14-01:01:36.344327 7f502ea5da80 CURRENT file: CURRENT
+2021/03/14-01:01:36.344329 7f502ea5da80 IDENTITY file: IDENTITY
+2021/03/14-01:01:36.344341 7f502ea5da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:01:36.344342 7f502ea5da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:01:36.344343 7f502ea5da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:01:36.344350 7f502ea5da80 Options.error_if_exists: 0
+2021/03/14-01:01:36.344351 7f502ea5da80 Options.create_if_missing: 1
+2021/03/14-01:01:36.344352 7f502ea5da80 Options.paranoid_checks: 1
+2021/03/14-01:01:36.344352 7f502ea5da80 Options.env: 0x7f502f417080
+2021/03/14-01:01:36.344353 7f502ea5da80 Options.info_log: 0x13e4ca0
+2021/03/14-01:01:36.344354 7f502ea5da80 Options.max_file_opening_threads: 16
+2021/03/14-01:01:36.344355 7f502ea5da80 Options.statistics: (nil)
+2021/03/14-01:01:36.344356 7f502ea5da80 Options.use_fsync: 0
+2021/03/14-01:01:36.344356 7f502ea5da80 Options.max_log_file_size: 0
+2021/03/14-01:01:36.344357 7f502ea5da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:01:36.344358 7f502ea5da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:01:36.344358 7f502ea5da80 Options.keep_log_file_num: 1000
+2021/03/14-01:01:36.344359 7f502ea5da80 Options.recycle_log_file_num: 0
+2021/03/14-01:01:36.344360 7f502ea5da80 Options.allow_fallocate: 1
+2021/03/14-01:01:36.344361 7f502ea5da80 Options.allow_mmap_reads: 0
+2021/03/14-01:01:36.344361 7f502ea5da80 Options.allow_mmap_writes: 0
+2021/03/14-01:01:36.344362 7f502ea5da80 Options.use_direct_reads: 0
+2021/03/14-01:01:36.344363 7f502ea5da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:01:36.344363 7f502ea5da80 Options.create_missing_column_families: 0
+2021/03/14-01:01:36.344364 7f502ea5da80 Options.db_log_dir:
+2021/03/14-01:01:36.344365 7f502ea5da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:01:36.344365 7f502ea5da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:01:36.344366 7f502ea5da80 Options.max_subcompactions: 1
+2021/03/14-01:01:36.344367 7f502ea5da80 Options.max_background_flushes: -1
+2021/03/14-01:01:36.344367 7f502ea5da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:01:36.344368 7f502ea5da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:01:36.344369 7f502ea5da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:01:36.344370 7f502ea5da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:01:36.344370 7f502ea5da80 Options.advise_random_on_open: 1
+2021/03/14-01:01:36.344371 7f502ea5da80 Options.db_write_buffer_size: 0
+2021/03/14-01:01:36.344372 7f502ea5da80 Options.write_buffer_manager: 0x13ccb90
+2021/03/14-01:01:36.344372 7f502ea5da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:01:36.344373 7f502ea5da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:01:36.344374 7f502ea5da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:01:36.344374 7f502ea5da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:01:36.344375 7f502ea5da80 Options.rate_limiter: (nil)
+2021/03/14-01:01:36.344377 7f502ea5da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:01:36.344388 7f502ea5da80 Options.wal_recovery_mode: 2
+2021/03/14-01:01:36.344389 7f502ea5da80 Options.enable_thread_tracking: 0
+2021/03/14-01:01:36.344389 7f502ea5da80 Options.enable_pipelined_write: 0
+2021/03/14-01:01:36.344390 7f502ea5da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:01:36.344391 7f502ea5da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:01:36.344392 7f502ea5da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:01:36.344392 7f502ea5da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:01:36.344393 7f502ea5da80 Options.row_cache: None
+2021/03/14-01:01:36.344394 7f502ea5da80 Options.wal_filter: None
+2021/03/14-01:01:36.344394 7f502ea5da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:01:36.344395 7f502ea5da80 Options.allow_ingest_behind: 0
+2021/03/14-01:01:36.344396 7f502ea5da80 Options.preserve_deletes: 0
+2021/03/14-01:01:36.344396 7f502ea5da80 Options.two_write_queues: 0
+2021/03/14-01:01:36.344397 7f502ea5da80 Options.manual_wal_flush: 0
+2021/03/14-01:01:36.344399 7f502ea5da80 Options.max_background_jobs: 16
+2021/03/14-01:01:36.344399 7f502ea5da80 Options.max_background_compactions: -1
+2021/03/14-01:01:36.344400 7f502ea5da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:01:36.344401 7f502ea5da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:01:36.344401 7f502ea5da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:01:36.344402 7f502ea5da80 Options.max_total_wal_size: 0
+2021/03/14-01:01:36.344403 7f502ea5da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:01:36.344403 7f502ea5da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:01:36.344404 7f502ea5da80 Options.max_open_files: -1
+2021/03/14-01:01:36.344405 7f502ea5da80 Options.bytes_per_sync: 0
+2021/03/14-01:01:36.344405 7f502ea5da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:01:36.344406 7f502ea5da80 Options.compaction_readahead_size: 0
+2021/03/14-01:01:36.344407 7f502ea5da80 Compression algorithms supported:
+2021/03/14-01:01:36.344407 7f502ea5da80 Snappy supported: 1
+2021/03/14-01:01:36.344408 7f502ea5da80 Zlib supported: 1
+2021/03/14-01:01:36.344409 7f502ea5da80 Bzip supported: 1
+2021/03/14-01:01:36.344410 7f502ea5da80 LZ4 supported: 1
+2021/03/14-01:01:36.344410 7f502ea5da80 ZSTDNotFinal supported: 1
+2021/03/14-01:01:36.344416 7f502ea5da80 ZSTD supported: 1
+2021/03/14-01:01:36.344420 7f502ea5da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:01:36.344422 7f502ea5da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:01:36.344578 7f502ea5da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:01:36.344654 7f502ea5da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:01:36.344656 7f502ea5da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:01:36.344657 7f502ea5da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:01:36.344658 7f502ea5da80 Options.compaction_filter: None
+2021/03/14-01:01:36.344659 7f502ea5da80 Options.compaction_filter_factory: None
+2021/03/14-01:01:36.344659 7f502ea5da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:01:36.344660 7f502ea5da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:01:36.344678 7f502ea5da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x13dc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x13c1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:01:36.344679 7f502ea5da80 Options.write_buffer_size: 134217728
+2021/03/14-01:01:36.344679 7f502ea5da80 Options.max_write_buffer_number: 6
+2021/03/14-01:01:36.344680 7f502ea5da80 Options.compression[0]: NoCompression
+2021/03/14-01:01:36.344681 7f502ea5da80 Options.compression[1]: NoCompression
+2021/03/14-01:01:36.344682 7f502ea5da80 Options.compression[2]: Snappy
+2021/03/14-01:01:36.344683 7f502ea5da80 Options.compression[3]: Snappy
+2021/03/14-01:01:36.344683 7f502ea5da80 Options.compression[4]: Snappy
+2021/03/14-01:01:36.344684 7f502ea5da80 Options.compression[5]: Snappy
+2021/03/14-01:01:36.344685 7f502ea5da80 Options.compression[6]: Snappy
+2021/03/14-01:01:36.344685 7f502ea5da80 Options.bottommost_compression: Disabled
+2021/03/14-01:01:36.344686 7f502ea5da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:01:36.344687 7f502ea5da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:01:36.344688 7f502ea5da80 Options.num_levels: 7
+2021/03/14-01:01:36.344689 7f502ea5da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:01:36.344689 7f502ea5da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:01:36.344690 7f502ea5da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:01:36.344691 7f502ea5da80 Options.compression_opts.level: -1
+2021/03/14-01:01:36.344691 7f502ea5da80 Options.compression_opts.strategy: 0
+2021/03/14-01:01:36.344692 7f502ea5da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:01:36.344693 7f502ea5da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:01:36.344694 7f502ea5da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:01:36.344694 7f502ea5da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:01:36.344695 7f502ea5da80 Options.target_file_size_base: 67108864
+2021/03/14-01:01:36.344696 7f502ea5da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:01:36.344696 7f502ea5da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:01:36.344710 7f502ea5da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:01:36.344711 7f502ea5da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:01:36.344713 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:01:36.344722 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:01:36.344723 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:01:36.344724 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:01:36.344725 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:01:36.344725 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:01:36.344726 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:01:36.344726 7f502ea5da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:01:36.344727 7f502ea5da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:01:36.344728 7f502ea5da80 Options.arena_block_size: 16777216
+2021/03/14-01:01:36.344729 7f502ea5da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:01:36.344729 7f502ea5da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:01:36.344730 7f502ea5da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:01:36.344731 7f502ea5da80 Options.disable_auto_compactions: 0
+2021/03/14-01:01:36.344733 7f502ea5da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:01:36.344734 7f502ea5da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:01:36.344734 7f502ea5da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:01:36.344735 7f502ea5da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:01:36.344736 7f502ea5da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:01:36.344737 7f502ea5da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:01:36.344737 7f502ea5da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:01:36.344738 7f502ea5da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:01:36.344739 7f502ea5da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:01:36.344740 7f502ea5da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:01:36.344741 7f502ea5da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:01:36.344741 7f502ea5da80 Options.table_properties_collectors:
+2021/03/14-01:01:36.344742 7f502ea5da80 Options.inplace_update_support: 0
+2021/03/14-01:01:36.344743 7f502ea5da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:01:36.344744 7f502ea5da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:01:36.344745 7f502ea5da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:01:36.344745 7f502ea5da80 Options.bloom_locality: 0
+2021/03/14-01:01:36.344746 7f502ea5da80 Options.max_successive_merges: 0
+2021/03/14-01:01:36.344747 7f502ea5da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:01:36.344747 7f502ea5da80 Options.paranoid_file_checks: 0
+2021/03/14-01:01:36.344748 7f502ea5da80 Options.force_consistency_checks: 0
+2021/03/14-01:01:36.344748 7f502ea5da80 Options.report_bg_io_stats: 0
+2021/03/14-01:01:36.345223 7f502ea5da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:01:36.345226 7f502ea5da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:01:36.345375 7f502ea5da80 EVENT_LOG_v1 {"time_micros": 1615680096345361, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:01:36.345382 7f502ea5da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:01:37.045993 7f502ea5da80 EVENT_LOG_v1 {"time_micros": 1615680097045990, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680097763263 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680097763263
new file mode 100644
index 0000000..f1edc18
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680097763263
@@ -0,0 +1,186 @@
+2021/03/14-01:01:37.058047 7f502ea5da80 RocksDB version: 5.11.3
+2021/03/14-01:01:37.058101 7f502ea5da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:01:37.058102 7f502ea5da80 Compile date Mar 13 2021
+2021/03/14-01:01:37.058105 7f502ea5da80 DB SUMMARY
+2021/03/14-01:01:37.058202 7f502ea5da80 CURRENT file: CURRENT
+2021/03/14-01:01:37.058203 7f502ea5da80 IDENTITY file: IDENTITY
+2021/03/14-01:01:37.058213 7f502ea5da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:01:37.058214 7f502ea5da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:01:37.058215 7f502ea5da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:01:37.058220 7f502ea5da80 Options.error_if_exists: 0
+2021/03/14-01:01:37.058221 7f502ea5da80 Options.create_if_missing: 1
+2021/03/14-01:01:37.058222 7f502ea5da80 Options.paranoid_checks: 1
+2021/03/14-01:01:37.058222 7f502ea5da80 Options.env: 0x7f502f417080
+2021/03/14-01:01:37.058223 7f502ea5da80 Options.info_log: 0x13e4ca0
+2021/03/14-01:01:37.058223 7f502ea5da80 Options.max_file_opening_threads: 16
+2021/03/14-01:01:37.058224 7f502ea5da80 Options.statistics: (nil)
+2021/03/14-01:01:37.058225 7f502ea5da80 Options.use_fsync: 0
+2021/03/14-01:01:37.058225 7f502ea5da80 Options.max_log_file_size: 0
+2021/03/14-01:01:37.058226 7f502ea5da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:01:37.058227 7f502ea5da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:01:37.058227 7f502ea5da80 Options.keep_log_file_num: 1000
+2021/03/14-01:01:37.058228 7f502ea5da80 Options.recycle_log_file_num: 0
+2021/03/14-01:01:37.058228 7f502ea5da80 Options.allow_fallocate: 1
+2021/03/14-01:01:37.058229 7f502ea5da80 Options.allow_mmap_reads: 0
+2021/03/14-01:01:37.058230 7f502ea5da80 Options.allow_mmap_writes: 0
+2021/03/14-01:01:37.058230 7f502ea5da80 Options.use_direct_reads: 0
+2021/03/14-01:01:37.058231 7f502ea5da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:01:37.058231 7f502ea5da80 Options.create_missing_column_families: 0
+2021/03/14-01:01:37.058232 7f502ea5da80 Options.db_log_dir:
+2021/03/14-01:01:37.058232 7f502ea5da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:01:37.058233 7f502ea5da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:01:37.058233 7f502ea5da80 Options.max_subcompactions: 1
+2021/03/14-01:01:37.058234 7f502ea5da80 Options.max_background_flushes: -1
+2021/03/14-01:01:37.058235 7f502ea5da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:01:37.058235 7f502ea5da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:01:37.058236 7f502ea5da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:01:37.058236 7f502ea5da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:01:37.058237 7f502ea5da80 Options.advise_random_on_open: 1
+2021/03/14-01:01:37.058243 7f502ea5da80 Options.db_write_buffer_size: 0
+2021/03/14-01:01:37.058244 7f502ea5da80 Options.write_buffer_manager: 0x13ccb90
+2021/03/14-01:01:37.058245 7f502ea5da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:01:37.058245 7f502ea5da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:01:37.058246 7f502ea5da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:01:37.058246 7f502ea5da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:01:37.058247 7f502ea5da80 Options.rate_limiter: (nil)
+2021/03/14-01:01:37.058248 7f502ea5da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:01:37.058257 7f502ea5da80 Options.wal_recovery_mode: 2
+2021/03/14-01:01:37.058258 7f502ea5da80 Options.enable_thread_tracking: 0
+2021/03/14-01:01:37.058259 7f502ea5da80 Options.enable_pipelined_write: 0
+2021/03/14-01:01:37.058259 7f502ea5da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:01:37.058260 7f502ea5da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:01:37.058260 7f502ea5da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:01:37.058261 7f502ea5da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:01:37.058261 7f502ea5da80 Options.row_cache: None
+2021/03/14-01:01:37.058262 7f502ea5da80 Options.wal_filter: None
+2021/03/14-01:01:37.058263 7f502ea5da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:01:37.058263 7f502ea5da80 Options.allow_ingest_behind: 0
+2021/03/14-01:01:37.058264 7f502ea5da80 Options.preserve_deletes: 0
+2021/03/14-01:01:37.058264 7f502ea5da80 Options.two_write_queues: 0
+2021/03/14-01:01:37.058265 7f502ea5da80 Options.manual_wal_flush: 0
+2021/03/14-01:01:37.058266 7f502ea5da80 Options.max_background_jobs: 16
+2021/03/14-01:01:37.058267 7f502ea5da80 Options.max_background_compactions: -1
+2021/03/14-01:01:37.058267 7f502ea5da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:01:37.058268 7f502ea5da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:01:37.058268 7f502ea5da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:01:37.058269 7f502ea5da80 Options.max_total_wal_size: 0
+2021/03/14-01:01:37.058270 7f502ea5da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:01:37.058270 7f502ea5da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:01:37.058271 7f502ea5da80 Options.max_open_files: -1
+2021/03/14-01:01:37.058271 7f502ea5da80 Options.bytes_per_sync: 0
+2021/03/14-01:01:37.058272 7f502ea5da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:01:37.058273 7f502ea5da80 Options.compaction_readahead_size: 0
+2021/03/14-01:01:37.058273 7f502ea5da80 Compression algorithms supported:
+2021/03/14-01:01:37.058274 7f502ea5da80 Snappy supported: 1
+2021/03/14-01:01:37.058274 7f502ea5da80 Zlib supported: 1
+2021/03/14-01:01:37.058275 7f502ea5da80 Bzip supported: 1
+2021/03/14-01:01:37.058275 7f502ea5da80 LZ4 supported: 1
+2021/03/14-01:01:37.058276 7f502ea5da80 ZSTDNotFinal supported: 1
+2021/03/14-01:01:37.058280 7f502ea5da80 ZSTD supported: 1
+2021/03/14-01:01:37.058283 7f502ea5da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:01:37.058284 7f502ea5da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:01:37.058394 7f502ea5da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:01:37.058451 7f502ea5da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:01:37.058452 7f502ea5da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:01:37.058453 7f502ea5da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:01:37.058454 7f502ea5da80 Options.compaction_filter: None
+2021/03/14-01:01:37.058454 7f502ea5da80 Options.compaction_filter_factory: None
+2021/03/14-01:01:37.058455 7f502ea5da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:01:37.058456 7f502ea5da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:01:37.058471 7f502ea5da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x13dc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x13c1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:01:37.058472 7f502ea5da80 Options.write_buffer_size: 134217728
+2021/03/14-01:01:37.058472 7f502ea5da80 Options.max_write_buffer_number: 6
+2021/03/14-01:01:37.058473 7f502ea5da80 Options.compression[0]: NoCompression
+2021/03/14-01:01:37.058474 7f502ea5da80 Options.compression[1]: NoCompression
+2021/03/14-01:01:37.058474 7f502ea5da80 Options.compression[2]: Snappy
+2021/03/14-01:01:37.058475 7f502ea5da80 Options.compression[3]: Snappy
+2021/03/14-01:01:37.058476 7f502ea5da80 Options.compression[4]: Snappy
+2021/03/14-01:01:37.058476 7f502ea5da80 Options.compression[5]: Snappy
+2021/03/14-01:01:37.058477 7f502ea5da80 Options.compression[6]: Snappy
+2021/03/14-01:01:37.058477 7f502ea5da80 Options.bottommost_compression: Disabled
+2021/03/14-01:01:37.058478 7f502ea5da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:01:37.058479 7f502ea5da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:01:37.058479 7f502ea5da80 Options.num_levels: 7
+2021/03/14-01:01:37.058480 7f502ea5da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:01:37.058480 7f502ea5da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:01:37.058481 7f502ea5da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:01:37.058482 7f502ea5da80 Options.compression_opts.level: -1
+2021/03/14-01:01:37.058482 7f502ea5da80 Options.compression_opts.strategy: 0
+2021/03/14-01:01:37.058483 7f502ea5da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:01:37.058483 7f502ea5da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:01:37.058484 7f502ea5da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:01:37.058485 7f502ea5da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:01:37.058485 7f502ea5da80 Options.target_file_size_base: 67108864
+2021/03/14-01:01:37.058486 7f502ea5da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:01:37.058486 7f502ea5da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:01:37.058487 7f502ea5da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:01:37.058488 7f502ea5da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:01:37.058489 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:01:37.058497 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:01:37.058498 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:01:37.058498 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:01:37.058499 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:01:37.058499 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:01:37.058500 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:01:37.058501 7f502ea5da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:01:37.058501 7f502ea5da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:01:37.058502 7f502ea5da80 Options.arena_block_size: 16777216
+2021/03/14-01:01:37.058502 7f502ea5da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:01:37.058503 7f502ea5da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:01:37.058504 7f502ea5da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:01:37.058504 7f502ea5da80 Options.disable_auto_compactions: 0
+2021/03/14-01:01:37.058506 7f502ea5da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:01:37.058507 7f502ea5da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:01:37.058507 7f502ea5da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:01:37.058508 7f502ea5da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:01:37.058508 7f502ea5da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:01:37.058509 7f502ea5da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:01:37.058510 7f502ea5da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:01:37.058511 7f502ea5da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:01:37.058511 7f502ea5da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:01:37.058512 7f502ea5da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:01:37.058512 7f502ea5da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:01:37.058513 7f502ea5da80 Options.table_properties_collectors:
+2021/03/14-01:01:37.058513 7f502ea5da80 Options.inplace_update_support: 0
+2021/03/14-01:01:37.058514 7f502ea5da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:01:37.058515 7f502ea5da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:01:37.058515 7f502ea5da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:01:37.058516 7f502ea5da80 Options.bloom_locality: 0
+2021/03/14-01:01:37.058517 7f502ea5da80 Options.max_successive_merges: 0
+2021/03/14-01:01:37.058517 7f502ea5da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:01:37.058518 7f502ea5da80 Options.paranoid_file_checks: 0
+2021/03/14-01:01:37.058518 7f502ea5da80 Options.force_consistency_checks: 0
+2021/03/14-01:01:37.058519 7f502ea5da80 Options.report_bg_io_stats: 0
+2021/03/14-01:01:37.058891 7f502ea5da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:01:37.058893 7f502ea5da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:01:37.059003 7f502ea5da80 EVENT_LOG_v1 {"time_micros": 1615680097058994, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:01:37.059009 7f502ea5da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:01:37.751269 7f502ea5da80 EVENT_LOG_v1 {"time_micros": 1615680097751266, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680098543525 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680098543525
new file mode 100644
index 0000000..d02e028
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680098543525
@@ -0,0 +1,186 @@
+2021/03/14-01:01:37.763611 7f502ea5da80 RocksDB version: 5.11.3
+2021/03/14-01:01:37.763665 7f502ea5da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:01:37.763666 7f502ea5da80 Compile date Mar 13 2021
+2021/03/14-01:01:37.763669 7f502ea5da80 DB SUMMARY
+2021/03/14-01:01:37.763766 7f502ea5da80 CURRENT file: CURRENT
+2021/03/14-01:01:37.763767 7f502ea5da80 IDENTITY file: IDENTITY
+2021/03/14-01:01:37.763777 7f502ea5da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:01:37.763778 7f502ea5da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:01:37.763779 7f502ea5da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:01:37.763785 7f502ea5da80 Options.error_if_exists: 0
+2021/03/14-01:01:37.763785 7f502ea5da80 Options.create_if_missing: 1
+2021/03/14-01:01:37.763786 7f502ea5da80 Options.paranoid_checks: 1
+2021/03/14-01:01:37.763787 7f502ea5da80 Options.env: 0x7f502f417080
+2021/03/14-01:01:37.763787 7f502ea5da80 Options.info_log: 0x13e4ca0
+2021/03/14-01:01:37.763788 7f502ea5da80 Options.max_file_opening_threads: 16
+2021/03/14-01:01:37.763788 7f502ea5da80 Options.statistics: (nil)
+2021/03/14-01:01:37.763789 7f502ea5da80 Options.use_fsync: 0
+2021/03/14-01:01:37.763790 7f502ea5da80 Options.max_log_file_size: 0
+2021/03/14-01:01:37.763790 7f502ea5da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:01:37.763791 7f502ea5da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:01:37.763791 7f502ea5da80 Options.keep_log_file_num: 1000
+2021/03/14-01:01:37.763792 7f502ea5da80 Options.recycle_log_file_num: 0
+2021/03/14-01:01:37.763793 7f502ea5da80 Options.allow_fallocate: 1
+2021/03/14-01:01:37.763793 7f502ea5da80 Options.allow_mmap_reads: 0
+2021/03/14-01:01:37.763794 7f502ea5da80 Options.allow_mmap_writes: 0
+2021/03/14-01:01:37.763794 7f502ea5da80 Options.use_direct_reads: 0
+2021/03/14-01:01:37.763795 7f502ea5da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:01:37.763795 7f502ea5da80 Options.create_missing_column_families: 0
+2021/03/14-01:01:37.763796 7f502ea5da80 Options.db_log_dir:
+2021/03/14-01:01:37.763797 7f502ea5da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:01:37.763797 7f502ea5da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:01:37.763798 7f502ea5da80 Options.max_subcompactions: 1
+2021/03/14-01:01:37.763798 7f502ea5da80 Options.max_background_flushes: -1
+2021/03/14-01:01:37.763799 7f502ea5da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:01:37.763800 7f502ea5da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:01:37.763800 7f502ea5da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:01:37.763801 7f502ea5da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:01:37.763801 7f502ea5da80 Options.advise_random_on_open: 1
+2021/03/14-01:01:37.763802 7f502ea5da80 Options.db_write_buffer_size: 0
+2021/03/14-01:01:37.763802 7f502ea5da80 Options.write_buffer_manager: 0x13ccb90
+2021/03/14-01:01:37.763803 7f502ea5da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:01:37.763804 7f502ea5da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:01:37.763804 7f502ea5da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:01:37.763805 7f502ea5da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:01:37.763805 7f502ea5da80 Options.rate_limiter: (nil)
+2021/03/14-01:01:37.763807 7f502ea5da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:01:37.763814 7f502ea5da80 Options.wal_recovery_mode: 2
+2021/03/14-01:01:37.763815 7f502ea5da80 Options.enable_thread_tracking: 0
+2021/03/14-01:01:37.763815 7f502ea5da80 Options.enable_pipelined_write: 0
+2021/03/14-01:01:37.763816 7f502ea5da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:01:37.763816 7f502ea5da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:01:37.763817 7f502ea5da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:01:37.763818 7f502ea5da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:01:37.763818 7f502ea5da80 Options.row_cache: None
+2021/03/14-01:01:37.763819 7f502ea5da80 Options.wal_filter: None
+2021/03/14-01:01:37.763819 7f502ea5da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:01:37.763820 7f502ea5da80 Options.allow_ingest_behind: 0
+2021/03/14-01:01:37.763820 7f502ea5da80 Options.preserve_deletes: 0
+2021/03/14-01:01:37.763821 7f502ea5da80 Options.two_write_queues: 0
+2021/03/14-01:01:37.763821 7f502ea5da80 Options.manual_wal_flush: 0
+2021/03/14-01:01:37.763823 7f502ea5da80 Options.max_background_jobs: 16
+2021/03/14-01:01:37.763823 7f502ea5da80 Options.max_background_compactions: -1
+2021/03/14-01:01:37.763824 7f502ea5da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:01:37.763824 7f502ea5da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:01:37.763825 7f502ea5da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:01:37.763826 7f502ea5da80 Options.max_total_wal_size: 0
+2021/03/14-01:01:37.763826 7f502ea5da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:01:37.763827 7f502ea5da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:01:37.763827 7f502ea5da80 Options.max_open_files: -1
+2021/03/14-01:01:37.763828 7f502ea5da80 Options.bytes_per_sync: 0
+2021/03/14-01:01:37.763828 7f502ea5da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:01:37.763829 7f502ea5da80 Options.compaction_readahead_size: 0
+2021/03/14-01:01:37.763830 7f502ea5da80 Compression algorithms supported:
+2021/03/14-01:01:37.763830 7f502ea5da80 Snappy supported: 1
+2021/03/14-01:01:37.763831 7f502ea5da80 Zlib supported: 1
+2021/03/14-01:01:37.763831 7f502ea5da80 Bzip supported: 1
+2021/03/14-01:01:37.763832 7f502ea5da80 LZ4 supported: 1
+2021/03/14-01:01:37.763832 7f502ea5da80 ZSTDNotFinal supported: 1
+2021/03/14-01:01:37.763836 7f502ea5da80 ZSTD supported: 1
+2021/03/14-01:01:37.763839 7f502ea5da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:01:37.763841 7f502ea5da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:01:37.763932 7f502ea5da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:01:37.763988 7f502ea5da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:01:37.763989 7f502ea5da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:01:37.763990 7f502ea5da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:01:37.763991 7f502ea5da80 Options.compaction_filter: None
+2021/03/14-01:01:37.763991 7f502ea5da80 Options.compaction_filter_factory: None
+2021/03/14-01:01:37.763992 7f502ea5da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:01:37.763993 7f502ea5da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:01:37.764009 7f502ea5da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x13dc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x13c1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:01:37.764010 7f502ea5da80 Options.write_buffer_size: 134217728
+2021/03/14-01:01:37.764011 7f502ea5da80 Options.max_write_buffer_number: 6
+2021/03/14-01:01:37.764011 7f502ea5da80 Options.compression[0]: NoCompression
+2021/03/14-01:01:37.764012 7f502ea5da80 Options.compression[1]: NoCompression
+2021/03/14-01:01:37.764013 7f502ea5da80 Options.compression[2]: Snappy
+2021/03/14-01:01:37.764013 7f502ea5da80 Options.compression[3]: Snappy
+2021/03/14-01:01:37.764014 7f502ea5da80 Options.compression[4]: Snappy
+2021/03/14-01:01:37.764014 7f502ea5da80 Options.compression[5]: Snappy
+2021/03/14-01:01:37.764015 7f502ea5da80 Options.compression[6]: Snappy
+2021/03/14-01:01:37.764016 7f502ea5da80 Options.bottommost_compression: Disabled
+2021/03/14-01:01:37.764016 7f502ea5da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:01:37.764017 7f502ea5da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:01:37.764018 7f502ea5da80 Options.num_levels: 7
+2021/03/14-01:01:37.764018 7f502ea5da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:01:37.764019 7f502ea5da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:01:37.764019 7f502ea5da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:01:37.764020 7f502ea5da80 Options.compression_opts.level: -1
+2021/03/14-01:01:37.764021 7f502ea5da80 Options.compression_opts.strategy: 0
+2021/03/14-01:01:37.764021 7f502ea5da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:01:37.764022 7f502ea5da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:01:37.764022 7f502ea5da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:01:37.764023 7f502ea5da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:01:37.764024 7f502ea5da80 Options.target_file_size_base: 67108864
+2021/03/14-01:01:37.764024 7f502ea5da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:01:37.764025 7f502ea5da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:01:37.764025 7f502ea5da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:01:37.764026 7f502ea5da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:01:37.764028 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:01:37.764035 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:01:37.764036 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:01:37.764036 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:01:37.764037 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:01:37.764037 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:01:37.764038 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:01:37.764039 7f502ea5da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:01:37.764039 7f502ea5da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:01:37.764040 7f502ea5da80 Options.arena_block_size: 16777216
+2021/03/14-01:01:37.764040 7f502ea5da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:01:37.764041 7f502ea5da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:01:37.764042 7f502ea5da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:01:37.764042 7f502ea5da80 Options.disable_auto_compactions: 0
+2021/03/14-01:01:37.764044 7f502ea5da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:01:37.764044 7f502ea5da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:01:37.764045 7f502ea5da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:01:37.764046 7f502ea5da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:01:37.764046 7f502ea5da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:01:37.764047 7f502ea5da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:01:37.764047 7f502ea5da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:01:37.764048 7f502ea5da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:01:37.764049 7f502ea5da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:01:37.764050 7f502ea5da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:01:37.764050 7f502ea5da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:01:37.764051 7f502ea5da80 Options.table_properties_collectors:
+2021/03/14-01:01:37.764051 7f502ea5da80 Options.inplace_update_support: 0
+2021/03/14-01:01:37.764052 7f502ea5da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:01:37.764052 7f502ea5da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:01:37.764053 7f502ea5da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:01:37.764054 7f502ea5da80 Options.bloom_locality: 0
+2021/03/14-01:01:37.764054 7f502ea5da80 Options.max_successive_merges: 0
+2021/03/14-01:01:37.764055 7f502ea5da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:01:37.764056 7f502ea5da80 Options.paranoid_file_checks: 0
+2021/03/14-01:01:37.764056 7f502ea5da80 Options.force_consistency_checks: 0
+2021/03/14-01:01:37.764057 7f502ea5da80 Options.report_bg_io_stats: 0
+2021/03/14-01:01:37.764430 7f502ea5da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:01:37.764432 7f502ea5da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:01:37.764545 7f502ea5da80 EVENT_LOG_v1 {"time_micros": 1615680097764535, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:01:37.764549 7f502ea5da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:01:38.531283 7f502ea5da80 EVENT_LOG_v1 {"time_micros": 1615680098531279, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680444405913 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680444405913
new file mode 100644
index 0000000..a69442d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680444405913
@@ -0,0 +1,186 @@
+2021/03/14-01:01:38.543871 7f502ea5da80 RocksDB version: 5.11.3
+2021/03/14-01:01:38.543925 7f502ea5da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:01:38.543927 7f502ea5da80 Compile date Mar 13 2021
+2021/03/14-01:01:38.543929 7f502ea5da80 DB SUMMARY
+2021/03/14-01:01:38.544028 7f502ea5da80 CURRENT file: CURRENT
+2021/03/14-01:01:38.544029 7f502ea5da80 IDENTITY file: IDENTITY
+2021/03/14-01:01:38.544039 7f502ea5da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:01:38.544040 7f502ea5da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:01:38.544041 7f502ea5da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:01:38.544046 7f502ea5da80 Options.error_if_exists: 0
+2021/03/14-01:01:38.544047 7f502ea5da80 Options.create_if_missing: 1
+2021/03/14-01:01:38.544048 7f502ea5da80 Options.paranoid_checks: 1
+2021/03/14-01:01:38.544048 7f502ea5da80 Options.env: 0x7f502f417080
+2021/03/14-01:01:38.544049 7f502ea5da80 Options.info_log: 0x13e4ca0
+2021/03/14-01:01:38.544049 7f502ea5da80 Options.max_file_opening_threads: 16
+2021/03/14-01:01:38.544050 7f502ea5da80 Options.statistics: (nil)
+2021/03/14-01:01:38.544051 7f502ea5da80 Options.use_fsync: 0
+2021/03/14-01:01:38.544051 7f502ea5da80 Options.max_log_file_size: 0
+2021/03/14-01:01:38.544052 7f502ea5da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:01:38.544052 7f502ea5da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:01:38.544053 7f502ea5da80 Options.keep_log_file_num: 1000
+2021/03/14-01:01:38.544054 7f502ea5da80 Options.recycle_log_file_num: 0
+2021/03/14-01:01:38.544054 7f502ea5da80 Options.allow_fallocate: 1
+2021/03/14-01:01:38.544055 7f502ea5da80 Options.allow_mmap_reads: 0
+2021/03/14-01:01:38.544055 7f502ea5da80 Options.allow_mmap_writes: 0
+2021/03/14-01:01:38.544056 7f502ea5da80 Options.use_direct_reads: 0
+2021/03/14-01:01:38.544056 7f502ea5da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:01:38.544057 7f502ea5da80 Options.create_missing_column_families: 0
+2021/03/14-01:01:38.544058 7f502ea5da80 Options.db_log_dir:
+2021/03/14-01:01:38.544058 7f502ea5da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:01:38.544059 7f502ea5da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:01:38.544059 7f502ea5da80 Options.max_subcompactions: 1
+2021/03/14-01:01:38.544060 7f502ea5da80 Options.max_background_flushes: -1
+2021/03/14-01:01:38.544060 7f502ea5da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:01:38.544061 7f502ea5da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:01:38.544062 7f502ea5da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:01:38.544062 7f502ea5da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:01:38.544063 7f502ea5da80 Options.advise_random_on_open: 1
+2021/03/14-01:01:38.544063 7f502ea5da80 Options.db_write_buffer_size: 0
+2021/03/14-01:01:38.544064 7f502ea5da80 Options.write_buffer_manager: 0x13ccb90
+2021/03/14-01:01:38.544064 7f502ea5da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:01:38.544065 7f502ea5da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:01:38.544066 7f502ea5da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:01:38.544066 7f502ea5da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:01:38.544067 7f502ea5da80 Options.rate_limiter: (nil)
+2021/03/14-01:01:38.544068 7f502ea5da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:01:38.544075 7f502ea5da80 Options.wal_recovery_mode: 2
+2021/03/14-01:01:38.544076 7f502ea5da80 Options.enable_thread_tracking: 0
+2021/03/14-01:01:38.544077 7f502ea5da80 Options.enable_pipelined_write: 0
+2021/03/14-01:01:38.544077 7f502ea5da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:01:38.544078 7f502ea5da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:01:38.544078 7f502ea5da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:01:38.544079 7f502ea5da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:01:38.544079 7f502ea5da80 Options.row_cache: None
+2021/03/14-01:01:38.544080 7f502ea5da80 Options.wal_filter: None
+2021/03/14-01:01:38.544081 7f502ea5da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:01:38.544081 7f502ea5da80 Options.allow_ingest_behind: 0
+2021/03/14-01:01:38.544082 7f502ea5da80 Options.preserve_deletes: 0
+2021/03/14-01:01:38.544082 7f502ea5da80 Options.two_write_queues: 0
+2021/03/14-01:01:38.544083 7f502ea5da80 Options.manual_wal_flush: 0
+2021/03/14-01:01:38.544084 7f502ea5da80 Options.max_background_jobs: 16
+2021/03/14-01:01:38.544084 7f502ea5da80 Options.max_background_compactions: -1
+2021/03/14-01:01:38.544085 7f502ea5da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:01:38.544086 7f502ea5da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:01:38.544086 7f502ea5da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:01:38.544087 7f502ea5da80 Options.max_total_wal_size: 0
+2021/03/14-01:01:38.544087 7f502ea5da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:01:38.544088 7f502ea5da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:01:38.544089 7f502ea5da80 Options.max_open_files: -1
+2021/03/14-01:01:38.544089 7f502ea5da80 Options.bytes_per_sync: 0
+2021/03/14-01:01:38.544090 7f502ea5da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:01:38.544090 7f502ea5da80 Options.compaction_readahead_size: 0
+2021/03/14-01:01:38.544091 7f502ea5da80 Compression algorithms supported:
+2021/03/14-01:01:38.544091 7f502ea5da80 Snappy supported: 1
+2021/03/14-01:01:38.544092 7f502ea5da80 Zlib supported: 1
+2021/03/14-01:01:38.544093 7f502ea5da80 Bzip supported: 1
+2021/03/14-01:01:38.544093 7f502ea5da80 LZ4 supported: 1
+2021/03/14-01:01:38.544094 7f502ea5da80 ZSTDNotFinal supported: 1
+2021/03/14-01:01:38.544098 7f502ea5da80 ZSTD supported: 1
+2021/03/14-01:01:38.544101 7f502ea5da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:01:38.544102 7f502ea5da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:01:38.544191 7f502ea5da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:01:38.544252 7f502ea5da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:01:38.544254 7f502ea5da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:01:38.544255 7f502ea5da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:01:38.544256 7f502ea5da80 Options.compaction_filter: None
+2021/03/14-01:01:38.544256 7f502ea5da80 Options.compaction_filter_factory: None
+2021/03/14-01:01:38.544257 7f502ea5da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:01:38.544258 7f502ea5da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:01:38.544272 7f502ea5da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x13dc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x13c1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:01:38.544273 7f502ea5da80 Options.write_buffer_size: 134217728
+2021/03/14-01:01:38.544273 7f502ea5da80 Options.max_write_buffer_number: 6
+2021/03/14-01:01:38.544274 7f502ea5da80 Options.compression[0]: NoCompression
+2021/03/14-01:01:38.544275 7f502ea5da80 Options.compression[1]: NoCompression
+2021/03/14-01:01:38.544276 7f502ea5da80 Options.compression[2]: Snappy
+2021/03/14-01:01:38.544276 7f502ea5da80 Options.compression[3]: Snappy
+2021/03/14-01:01:38.544277 7f502ea5da80 Options.compression[4]: Snappy
+2021/03/14-01:01:38.544277 7f502ea5da80 Options.compression[5]: Snappy
+2021/03/14-01:01:38.544278 7f502ea5da80 Options.compression[6]: Snappy
+2021/03/14-01:01:38.544279 7f502ea5da80 Options.bottommost_compression: Disabled
+2021/03/14-01:01:38.544279 7f502ea5da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:01:38.544280 7f502ea5da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:01:38.544281 7f502ea5da80 Options.num_levels: 7
+2021/03/14-01:01:38.544281 7f502ea5da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:01:38.544282 7f502ea5da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:01:38.544282 7f502ea5da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:01:38.544283 7f502ea5da80 Options.compression_opts.level: -1
+2021/03/14-01:01:38.544284 7f502ea5da80 Options.compression_opts.strategy: 0
+2021/03/14-01:01:38.544284 7f502ea5da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:01:38.544285 7f502ea5da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:01:38.544285 7f502ea5da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:01:38.544286 7f502ea5da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:01:38.544286 7f502ea5da80 Options.target_file_size_base: 67108864
+2021/03/14-01:01:38.544287 7f502ea5da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:01:38.544288 7f502ea5da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:01:38.544288 7f502ea5da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:01:38.544289 7f502ea5da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:01:38.544290 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:01:38.544299 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:01:38.544300 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:01:38.544300 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:01:38.544301 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:01:38.544302 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:01:38.544302 7f502ea5da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:01:38.544303 7f502ea5da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:01:38.544303 7f502ea5da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:01:38.544304 7f502ea5da80 Options.arena_block_size: 16777216
+2021/03/14-01:01:38.544304 7f502ea5da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:01:38.544305 7f502ea5da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:01:38.544306 7f502ea5da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:01:38.544306 7f502ea5da80 Options.disable_auto_compactions: 0
+2021/03/14-01:01:38.544308 7f502ea5da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:01:38.544309 7f502ea5da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:01:38.544309 7f502ea5da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:01:38.544310 7f502ea5da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:01:38.544310 7f502ea5da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:01:38.544311 7f502ea5da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:01:38.544311 7f502ea5da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:01:38.544312 7f502ea5da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:01:38.544313 7f502ea5da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:01:38.544313 7f502ea5da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:01:38.544314 7f502ea5da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:01:38.544315 7f502ea5da80 Options.table_properties_collectors:
+2021/03/14-01:01:38.544315 7f502ea5da80 Options.inplace_update_support: 0
+2021/03/14-01:01:38.544316 7f502ea5da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:01:38.544316 7f502ea5da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:01:38.544317 7f502ea5da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:01:38.544318 7f502ea5da80 Options.bloom_locality: 0
+2021/03/14-01:01:38.544318 7f502ea5da80 Options.max_successive_merges: 0
+2021/03/14-01:01:38.544319 7f502ea5da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:01:38.544319 7f502ea5da80 Options.paranoid_file_checks: 0
+2021/03/14-01:01:38.544320 7f502ea5da80 Options.force_consistency_checks: 0
+2021/03/14-01:01:38.544321 7f502ea5da80 Options.report_bg_io_stats: 0
+2021/03/14-01:01:38.544686 7f502ea5da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:01:38.544689 7f502ea5da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:01:38.544800 7f502ea5da80 EVENT_LOG_v1 {"time_micros": 1615680098544789, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:01:38.544805 7f502ea5da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:01:39.258176 7f502ea5da80 EVENT_LOG_v1 {"time_micros": 1615680099258173, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680445095193 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680445095193
new file mode 100644
index 0000000..879e6a0
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680445095193
@@ -0,0 +1,186 @@
+2021/03/14-01:07:24.406343 7fd83ae68a80 RocksDB version: 5.11.3
+2021/03/14-01:07:24.406404 7fd83ae68a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:07:24.406406 7fd83ae68a80 Compile date Mar 13 2021
+2021/03/14-01:07:24.406412 7fd83ae68a80 DB SUMMARY
+2021/03/14-01:07:24.406520 7fd83ae68a80 CURRENT file: CURRENT
+2021/03/14-01:07:24.406521 7fd83ae68a80 IDENTITY file: IDENTITY
+2021/03/14-01:07:24.406532 7fd83ae68a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:07:24.406533 7fd83ae68a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:07:24.406534 7fd83ae68a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:07:24.406540 7fd83ae68a80 Options.error_if_exists: 0
+2021/03/14-01:07:24.406541 7fd83ae68a80 Options.create_if_missing: 1
+2021/03/14-01:07:24.406542 7fd83ae68a80 Options.paranoid_checks: 1
+2021/03/14-01:07:24.406542 7fd83ae68a80 Options.env: 0x7fd83b822080
+2021/03/14-01:07:24.406543 7fd83ae68a80 Options.info_log: 0x1b32ca0
+2021/03/14-01:07:24.406544 7fd83ae68a80 Options.max_file_opening_threads: 16
+2021/03/14-01:07:24.406544 7fd83ae68a80 Options.statistics: (nil)
+2021/03/14-01:07:24.406545 7fd83ae68a80 Options.use_fsync: 0
+2021/03/14-01:07:24.406546 7fd83ae68a80 Options.max_log_file_size: 0
+2021/03/14-01:07:24.406546 7fd83ae68a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:07:24.406547 7fd83ae68a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:07:24.406548 7fd83ae68a80 Options.keep_log_file_num: 1000
+2021/03/14-01:07:24.406548 7fd83ae68a80 Options.recycle_log_file_num: 0
+2021/03/14-01:07:24.406549 7fd83ae68a80 Options.allow_fallocate: 1
+2021/03/14-01:07:24.406550 7fd83ae68a80 Options.allow_mmap_reads: 0
+2021/03/14-01:07:24.406550 7fd83ae68a80 Options.allow_mmap_writes: 0
+2021/03/14-01:07:24.406551 7fd83ae68a80 Options.use_direct_reads: 0
+2021/03/14-01:07:24.406551 7fd83ae68a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:07:24.406552 7fd83ae68a80 Options.create_missing_column_families: 0
+2021/03/14-01:07:24.406553 7fd83ae68a80 Options.db_log_dir:
+2021/03/14-01:07:24.406553 7fd83ae68a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:07:24.406554 7fd83ae68a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:07:24.406554 7fd83ae68a80 Options.max_subcompactions: 1
+2021/03/14-01:07:24.406555 7fd83ae68a80 Options.max_background_flushes: -1
+2021/03/14-01:07:24.406556 7fd83ae68a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:07:24.406556 7fd83ae68a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:07:24.406557 7fd83ae68a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:07:24.406558 7fd83ae68a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:07:24.406558 7fd83ae68a80 Options.advise_random_on_open: 1
+2021/03/14-01:07:24.406559 7fd83ae68a80 Options.db_write_buffer_size: 0
+2021/03/14-01:07:24.406559 7fd83ae68a80 Options.write_buffer_manager: 0x1b1ab90
+2021/03/14-01:07:24.406560 7fd83ae68a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:07:24.406561 7fd83ae68a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:07:24.406561 7fd83ae68a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:07:24.406562 7fd83ae68a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:07:24.406563 7fd83ae68a80 Options.rate_limiter: (nil)
+2021/03/14-01:07:24.406564 7fd83ae68a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:07:24.406572 7fd83ae68a80 Options.wal_recovery_mode: 2
+2021/03/14-01:07:24.406573 7fd83ae68a80 Options.enable_thread_tracking: 0
+2021/03/14-01:07:24.406574 7fd83ae68a80 Options.enable_pipelined_write: 0
+2021/03/14-01:07:24.406575 7fd83ae68a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:07:24.406575 7fd83ae68a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:07:24.406576 7fd83ae68a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:07:24.406576 7fd83ae68a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:07:24.406577 7fd83ae68a80 Options.row_cache: None
+2021/03/14-01:07:24.406578 7fd83ae68a80 Options.wal_filter: None
+2021/03/14-01:07:24.406578 7fd83ae68a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:07:24.406579 7fd83ae68a80 Options.allow_ingest_behind: 0
+2021/03/14-01:07:24.406580 7fd83ae68a80 Options.preserve_deletes: 0
+2021/03/14-01:07:24.406580 7fd83ae68a80 Options.two_write_queues: 0
+2021/03/14-01:07:24.406581 7fd83ae68a80 Options.manual_wal_flush: 0
+2021/03/14-01:07:24.406582 7fd83ae68a80 Options.max_background_jobs: 16
+2021/03/14-01:07:24.406583 7fd83ae68a80 Options.max_background_compactions: -1
+2021/03/14-01:07:24.406583 7fd83ae68a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:07:24.406584 7fd83ae68a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:07:24.406584 7fd83ae68a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:07:24.406585 7fd83ae68a80 Options.max_total_wal_size: 0
+2021/03/14-01:07:24.406586 7fd83ae68a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:07:24.406586 7fd83ae68a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:07:24.406587 7fd83ae68a80 Options.max_open_files: -1
+2021/03/14-01:07:24.406588 7fd83ae68a80 Options.bytes_per_sync: 0
+2021/03/14-01:07:24.406588 7fd83ae68a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:07:24.406589 7fd83ae68a80 Options.compaction_readahead_size: 0
+2021/03/14-01:07:24.406589 7fd83ae68a80 Compression algorithms supported:
+2021/03/14-01:07:24.406590 7fd83ae68a80 Snappy supported: 1
+2021/03/14-01:07:24.406591 7fd83ae68a80 Zlib supported: 1
+2021/03/14-01:07:24.406591 7fd83ae68a80 Bzip supported: 1
+2021/03/14-01:07:24.406592 7fd83ae68a80 LZ4 supported: 1
+2021/03/14-01:07:24.406592 7fd83ae68a80 ZSTDNotFinal supported: 1
+2021/03/14-01:07:24.406597 7fd83ae68a80 ZSTD supported: 1
+2021/03/14-01:07:24.406600 7fd83ae68a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:07:24.406602 7fd83ae68a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:07:24.406726 7fd83ae68a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:07:24.406783 7fd83ae68a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:07:24.406785 7fd83ae68a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:07:24.406786 7fd83ae68a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:07:24.406787 7fd83ae68a80 Options.compaction_filter: None
+2021/03/14-01:07:24.406787 7fd83ae68a80 Options.compaction_filter_factory: None
+2021/03/14-01:07:24.406788 7fd83ae68a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:07:24.406789 7fd83ae68a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:07:24.406804 7fd83ae68a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1b2a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1b0fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:07:24.406805 7fd83ae68a80 Options.write_buffer_size: 134217728
+2021/03/14-01:07:24.406806 7fd83ae68a80 Options.max_write_buffer_number: 6
+2021/03/14-01:07:24.406807 7fd83ae68a80 Options.compression[0]: NoCompression
+2021/03/14-01:07:24.406807 7fd83ae68a80 Options.compression[1]: NoCompression
+2021/03/14-01:07:24.406808 7fd83ae68a80 Options.compression[2]: Snappy
+2021/03/14-01:07:24.406809 7fd83ae68a80 Options.compression[3]: Snappy
+2021/03/14-01:07:24.406809 7fd83ae68a80 Options.compression[4]: Snappy
+2021/03/14-01:07:24.406810 7fd83ae68a80 Options.compression[5]: Snappy
+2021/03/14-01:07:24.406811 7fd83ae68a80 Options.compression[6]: Snappy
+2021/03/14-01:07:24.406811 7fd83ae68a80 Options.bottommost_compression: Disabled
+2021/03/14-01:07:24.406812 7fd83ae68a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:07:24.406813 7fd83ae68a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:07:24.406813 7fd83ae68a80 Options.num_levels: 7
+2021/03/14-01:07:24.406814 7fd83ae68a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:07:24.406815 7fd83ae68a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:07:24.406815 7fd83ae68a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:07:24.406816 7fd83ae68a80 Options.compression_opts.level: -1
+2021/03/14-01:07:24.406817 7fd83ae68a80 Options.compression_opts.strategy: 0
+2021/03/14-01:07:24.406817 7fd83ae68a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:07:24.406818 7fd83ae68a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:07:24.406819 7fd83ae68a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:07:24.406819 7fd83ae68a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:07:24.406820 7fd83ae68a80 Options.target_file_size_base: 67108864
+2021/03/14-01:07:24.406821 7fd83ae68a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:07:24.406821 7fd83ae68a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:07:24.406822 7fd83ae68a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:07:24.406823 7fd83ae68a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:07:24.406824 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:07:24.406833 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:07:24.406834 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:07:24.406834 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:07:24.406835 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:07:24.406835 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:07:24.406836 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:07:24.406837 7fd83ae68a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:07:24.406837 7fd83ae68a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:07:24.406838 7fd83ae68a80 Options.arena_block_size: 16777216
+2021/03/14-01:07:24.406839 7fd83ae68a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:07:24.406839 7fd83ae68a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:07:24.406840 7fd83ae68a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:07:24.406840 7fd83ae68a80 Options.disable_auto_compactions: 0
+2021/03/14-01:07:24.406842 7fd83ae68a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:07:24.406843 7fd83ae68a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:07:24.406843 7fd83ae68a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:07:24.406844 7fd83ae68a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:07:24.406845 7fd83ae68a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:07:24.406845 7fd83ae68a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:07:24.406846 7fd83ae68a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:07:24.406847 7fd83ae68a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:07:24.406848 7fd83ae68a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:07:24.406848 7fd83ae68a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:07:24.406849 7fd83ae68a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:07:24.406850 7fd83ae68a80 Options.table_properties_collectors:
+2021/03/14-01:07:24.406850 7fd83ae68a80 Options.inplace_update_support: 0
+2021/03/14-01:07:24.406851 7fd83ae68a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:07:24.406852 7fd83ae68a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:07:24.406853 7fd83ae68a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:07:24.406853 7fd83ae68a80 Options.bloom_locality: 0
+2021/03/14-01:07:24.406854 7fd83ae68a80 Options.max_successive_merges: 0
+2021/03/14-01:07:24.406854 7fd83ae68a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:07:24.406855 7fd83ae68a80 Options.paranoid_file_checks: 0
+2021/03/14-01:07:24.406856 7fd83ae68a80 Options.force_consistency_checks: 0
+2021/03/14-01:07:24.406856 7fd83ae68a80 Options.report_bg_io_stats: 0
+2021/03/14-01:07:24.407296 7fd83ae68a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:07:24.407298 7fd83ae68a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:07:24.407429 7fd83ae68a80 EVENT_LOG_v1 {"time_micros": 1615680444407414, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:07:24.407436 7fd83ae68a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:07:25.083134 7fd83ae68a80 EVENT_LOG_v1 {"time_micros": 1615680445083131, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680445779899 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680445779899
new file mode 100644
index 0000000..a59fece
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680445779899
@@ -0,0 +1,186 @@
+2021/03/14-01:07:25.095565 7fd83ae68a80 RocksDB version: 5.11.3
+2021/03/14-01:07:25.095617 7fd83ae68a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:07:25.095619 7fd83ae68a80 Compile date Mar 13 2021
+2021/03/14-01:07:25.095623 7fd83ae68a80 DB SUMMARY
+2021/03/14-01:07:25.095721 7fd83ae68a80 CURRENT file: CURRENT
+2021/03/14-01:07:25.095722 7fd83ae68a80 IDENTITY file: IDENTITY
+2021/03/14-01:07:25.095732 7fd83ae68a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:07:25.095733 7fd83ae68a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:07:25.095733 7fd83ae68a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:07:25.095739 7fd83ae68a80 Options.error_if_exists: 0
+2021/03/14-01:07:25.095740 7fd83ae68a80 Options.create_if_missing: 1
+2021/03/14-01:07:25.095741 7fd83ae68a80 Options.paranoid_checks: 1
+2021/03/14-01:07:25.095741 7fd83ae68a80 Options.env: 0x7fd83b822080
+2021/03/14-01:07:25.095742 7fd83ae68a80 Options.info_log: 0x1b32ca0
+2021/03/14-01:07:25.095742 7fd83ae68a80 Options.max_file_opening_threads: 16
+2021/03/14-01:07:25.095743 7fd83ae68a80 Options.statistics: (nil)
+2021/03/14-01:07:25.095744 7fd83ae68a80 Options.use_fsync: 0
+2021/03/14-01:07:25.095744 7fd83ae68a80 Options.max_log_file_size: 0
+2021/03/14-01:07:25.095745 7fd83ae68a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:07:25.095746 7fd83ae68a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:07:25.095746 7fd83ae68a80 Options.keep_log_file_num: 1000
+2021/03/14-01:07:25.095747 7fd83ae68a80 Options.recycle_log_file_num: 0
+2021/03/14-01:07:25.095748 7fd83ae68a80 Options.allow_fallocate: 1
+2021/03/14-01:07:25.095748 7fd83ae68a80 Options.allow_mmap_reads: 0
+2021/03/14-01:07:25.095749 7fd83ae68a80 Options.allow_mmap_writes: 0
+2021/03/14-01:07:25.095749 7fd83ae68a80 Options.use_direct_reads: 0
+2021/03/14-01:07:25.095750 7fd83ae68a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:07:25.095750 7fd83ae68a80 Options.create_missing_column_families: 0
+2021/03/14-01:07:25.095751 7fd83ae68a80 Options.db_log_dir:
+2021/03/14-01:07:25.095752 7fd83ae68a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:07:25.095752 7fd83ae68a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:07:25.095753 7fd83ae68a80 Options.max_subcompactions: 1
+2021/03/14-01:07:25.095753 7fd83ae68a80 Options.max_background_flushes: -1
+2021/03/14-01:07:25.095754 7fd83ae68a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:07:25.095755 7fd83ae68a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:07:25.095755 7fd83ae68a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:07:25.095756 7fd83ae68a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:07:25.095756 7fd83ae68a80 Options.advise_random_on_open: 1
+2021/03/14-01:07:25.095757 7fd83ae68a80 Options.db_write_buffer_size: 0
+2021/03/14-01:07:25.095758 7fd83ae68a80 Options.write_buffer_manager: 0x1b1ab90
+2021/03/14-01:07:25.095758 7fd83ae68a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:07:25.095759 7fd83ae68a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:07:25.095759 7fd83ae68a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:07:25.095760 7fd83ae68a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:07:25.095760 7fd83ae68a80 Options.rate_limiter: (nil)
+2021/03/14-01:07:25.095762 7fd83ae68a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:07:25.095770 7fd83ae68a80 Options.wal_recovery_mode: 2
+2021/03/14-01:07:25.095770 7fd83ae68a80 Options.enable_thread_tracking: 0
+2021/03/14-01:07:25.095771 7fd83ae68a80 Options.enable_pipelined_write: 0
+2021/03/14-01:07:25.095771 7fd83ae68a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:07:25.095772 7fd83ae68a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:07:25.095773 7fd83ae68a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:07:25.095773 7fd83ae68a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:07:25.095774 7fd83ae68a80 Options.row_cache: None
+2021/03/14-01:07:25.095774 7fd83ae68a80 Options.wal_filter: None
+2021/03/14-01:07:25.095775 7fd83ae68a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:07:25.095776 7fd83ae68a80 Options.allow_ingest_behind: 0
+2021/03/14-01:07:25.095776 7fd83ae68a80 Options.preserve_deletes: 0
+2021/03/14-01:07:25.095777 7fd83ae68a80 Options.two_write_queues: 0
+2021/03/14-01:07:25.095777 7fd83ae68a80 Options.manual_wal_flush: 0
+2021/03/14-01:07:25.095778 7fd83ae68a80 Options.max_background_jobs: 16
+2021/03/14-01:07:25.095779 7fd83ae68a80 Options.max_background_compactions: -1
+2021/03/14-01:07:25.095779 7fd83ae68a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:07:25.095780 7fd83ae68a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:07:25.095781 7fd83ae68a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:07:25.095781 7fd83ae68a80 Options.max_total_wal_size: 0
+2021/03/14-01:07:25.095782 7fd83ae68a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:07:25.095782 7fd83ae68a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:07:25.095783 7fd83ae68a80 Options.max_open_files: -1
+2021/03/14-01:07:25.095784 7fd83ae68a80 Options.bytes_per_sync: 0
+2021/03/14-01:07:25.095784 7fd83ae68a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:07:25.095785 7fd83ae68a80 Options.compaction_readahead_size: 0
+2021/03/14-01:07:25.095785 7fd83ae68a80 Compression algorithms supported:
+2021/03/14-01:07:25.095786 7fd83ae68a80 Snappy supported: 1
+2021/03/14-01:07:25.095786 7fd83ae68a80 Zlib supported: 1
+2021/03/14-01:07:25.095787 7fd83ae68a80 Bzip supported: 1
+2021/03/14-01:07:25.095788 7fd83ae68a80 LZ4 supported: 1
+2021/03/14-01:07:25.095788 7fd83ae68a80 ZSTDNotFinal supported: 1
+2021/03/14-01:07:25.095792 7fd83ae68a80 ZSTD supported: 1
+2021/03/14-01:07:25.095795 7fd83ae68a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:07:25.095796 7fd83ae68a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:07:25.095886 7fd83ae68a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:07:25.095937 7fd83ae68a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:07:25.095939 7fd83ae68a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:07:25.095940 7fd83ae68a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:07:25.095941 7fd83ae68a80 Options.compaction_filter: None
+2021/03/14-01:07:25.095941 7fd83ae68a80 Options.compaction_filter_factory: None
+2021/03/14-01:07:25.095942 7fd83ae68a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:07:25.095943 7fd83ae68a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:07:25.095957 7fd83ae68a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1b2a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1b0fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:07:25.095958 7fd83ae68a80 Options.write_buffer_size: 134217728
+2021/03/14-01:07:25.095958 7fd83ae68a80 Options.max_write_buffer_number: 6
+2021/03/14-01:07:25.095959 7fd83ae68a80 Options.compression[0]: NoCompression
+2021/03/14-01:07:25.095960 7fd83ae68a80 Options.compression[1]: NoCompression
+2021/03/14-01:07:25.095961 7fd83ae68a80 Options.compression[2]: Snappy
+2021/03/14-01:07:25.095961 7fd83ae68a80 Options.compression[3]: Snappy
+2021/03/14-01:07:25.095962 7fd83ae68a80 Options.compression[4]: Snappy
+2021/03/14-01:07:25.095962 7fd83ae68a80 Options.compression[5]: Snappy
+2021/03/14-01:07:25.095963 7fd83ae68a80 Options.compression[6]: Snappy
+2021/03/14-01:07:25.095964 7fd83ae68a80 Options.bottommost_compression: Disabled
+2021/03/14-01:07:25.095965 7fd83ae68a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:07:25.095965 7fd83ae68a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:07:25.095966 7fd83ae68a80 Options.num_levels: 7
+2021/03/14-01:07:25.095966 7fd83ae68a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:07:25.095967 7fd83ae68a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:07:25.095968 7fd83ae68a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:07:25.095968 7fd83ae68a80 Options.compression_opts.level: -1
+2021/03/14-01:07:25.095969 7fd83ae68a80 Options.compression_opts.strategy: 0
+2021/03/14-01:07:25.095969 7fd83ae68a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:07:25.095970 7fd83ae68a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:07:25.095971 7fd83ae68a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:07:25.095971 7fd83ae68a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:07:25.095972 7fd83ae68a80 Options.target_file_size_base: 67108864
+2021/03/14-01:07:25.095972 7fd83ae68a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:07:25.095973 7fd83ae68a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:07:25.095973 7fd83ae68a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:07:25.095974 7fd83ae68a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:07:25.095976 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:07:25.095983 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:07:25.095984 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:07:25.095985 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:07:25.095985 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:07:25.095986 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:07:25.095986 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:07:25.095987 7fd83ae68a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:07:25.095988 7fd83ae68a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:07:25.095988 7fd83ae68a80 Options.arena_block_size: 16777216
+2021/03/14-01:07:25.095989 7fd83ae68a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:07:25.095989 7fd83ae68a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:07:25.095990 7fd83ae68a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:07:25.095991 7fd83ae68a80 Options.disable_auto_compactions: 0
+2021/03/14-01:07:25.095993 7fd83ae68a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:07:25.095993 7fd83ae68a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:07:25.095994 7fd83ae68a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:07:25.095994 7fd83ae68a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:07:25.095995 7fd83ae68a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:07:25.095996 7fd83ae68a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:07:25.095996 7fd83ae68a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:07:25.095997 7fd83ae68a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:07:25.095998 7fd83ae68a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:07:25.095998 7fd83ae68a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:07:25.095999 7fd83ae68a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:07:25.095999 7fd83ae68a80 Options.table_properties_collectors:
+2021/03/14-01:07:25.096000 7fd83ae68a80 Options.inplace_update_support: 0
+2021/03/14-01:07:25.096001 7fd83ae68a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:07:25.096001 7fd83ae68a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:07:25.096002 7fd83ae68a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:07:25.096003 7fd83ae68a80 Options.bloom_locality: 0
+2021/03/14-01:07:25.096003 7fd83ae68a80 Options.max_successive_merges: 0
+2021/03/14-01:07:25.096004 7fd83ae68a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:07:25.096004 7fd83ae68a80 Options.paranoid_file_checks: 0
+2021/03/14-01:07:25.096005 7fd83ae68a80 Options.force_consistency_checks: 0
+2021/03/14-01:07:25.096005 7fd83ae68a80 Options.report_bg_io_stats: 0
+2021/03/14-01:07:25.096402 7fd83ae68a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:07:25.096405 7fd83ae68a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:07:25.096511 7fd83ae68a80 EVENT_LOG_v1 {"time_micros": 1615680445096502, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:07:25.096517 7fd83ae68a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:07:25.767725 7fd83ae68a80 EVENT_LOG_v1 {"time_micros": 1615680445767721, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680446464470 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680446464470
new file mode 100644
index 0000000..0ad52d6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680446464470
@@ -0,0 +1,186 @@
+2021/03/14-01:07:25.780277 7fd83ae68a80 RocksDB version: 5.11.3
+2021/03/14-01:07:25.780334 7fd83ae68a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:07:25.780335 7fd83ae68a80 Compile date Mar 13 2021
+2021/03/14-01:07:25.780340 7fd83ae68a80 DB SUMMARY
+2021/03/14-01:07:25.780440 7fd83ae68a80 CURRENT file: CURRENT
+2021/03/14-01:07:25.780441 7fd83ae68a80 IDENTITY file: IDENTITY
+2021/03/14-01:07:25.780451 7fd83ae68a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:07:25.780452 7fd83ae68a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:07:25.780453 7fd83ae68a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:07:25.780459 7fd83ae68a80 Options.error_if_exists: 0
+2021/03/14-01:07:25.780460 7fd83ae68a80 Options.create_if_missing: 1
+2021/03/14-01:07:25.780460 7fd83ae68a80 Options.paranoid_checks: 1
+2021/03/14-01:07:25.780461 7fd83ae68a80 Options.env: 0x7fd83b822080
+2021/03/14-01:07:25.780462 7fd83ae68a80 Options.info_log: 0x1b32ca0
+2021/03/14-01:07:25.780462 7fd83ae68a80 Options.max_file_opening_threads: 16
+2021/03/14-01:07:25.780463 7fd83ae68a80 Options.statistics: (nil)
+2021/03/14-01:07:25.780463 7fd83ae68a80 Options.use_fsync: 0
+2021/03/14-01:07:25.780464 7fd83ae68a80 Options.max_log_file_size: 0
+2021/03/14-01:07:25.780465 7fd83ae68a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:07:25.780465 7fd83ae68a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:07:25.780466 7fd83ae68a80 Options.keep_log_file_num: 1000
+2021/03/14-01:07:25.780466 7fd83ae68a80 Options.recycle_log_file_num: 0
+2021/03/14-01:07:25.780467 7fd83ae68a80 Options.allow_fallocate: 1
+2021/03/14-01:07:25.780468 7fd83ae68a80 Options.allow_mmap_reads: 0
+2021/03/14-01:07:25.780468 7fd83ae68a80 Options.allow_mmap_writes: 0
+2021/03/14-01:07:25.780469 7fd83ae68a80 Options.use_direct_reads: 0
+2021/03/14-01:07:25.780469 7fd83ae68a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:07:25.780470 7fd83ae68a80 Options.create_missing_column_families: 0
+2021/03/14-01:07:25.780470 7fd83ae68a80 Options.db_log_dir:
+2021/03/14-01:07:25.780471 7fd83ae68a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:07:25.780471 7fd83ae68a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:07:25.780472 7fd83ae68a80 Options.max_subcompactions: 1
+2021/03/14-01:07:25.780473 7fd83ae68a80 Options.max_background_flushes: -1
+2021/03/14-01:07:25.780473 7fd83ae68a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:07:25.780474 7fd83ae68a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:07:25.780474 7fd83ae68a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:07:25.780475 7fd83ae68a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:07:25.780476 7fd83ae68a80 Options.advise_random_on_open: 1
+2021/03/14-01:07:25.780476 7fd83ae68a80 Options.db_write_buffer_size: 0
+2021/03/14-01:07:25.780477 7fd83ae68a80 Options.write_buffer_manager: 0x1b1ab90
+2021/03/14-01:07:25.780477 7fd83ae68a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:07:25.780478 7fd83ae68a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:07:25.780478 7fd83ae68a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:07:25.780479 7fd83ae68a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:07:25.780480 7fd83ae68a80 Options.rate_limiter: (nil)
+2021/03/14-01:07:25.780481 7fd83ae68a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:07:25.780489 7fd83ae68a80 Options.wal_recovery_mode: 2
+2021/03/14-01:07:25.780490 7fd83ae68a80 Options.enable_thread_tracking: 0
+2021/03/14-01:07:25.780490 7fd83ae68a80 Options.enable_pipelined_write: 0
+2021/03/14-01:07:25.780491 7fd83ae68a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:07:25.780491 7fd83ae68a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:07:25.780492 7fd83ae68a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:07:25.780493 7fd83ae68a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:07:25.780493 7fd83ae68a80 Options.row_cache: None
+2021/03/14-01:07:25.780494 7fd83ae68a80 Options.wal_filter: None
+2021/03/14-01:07:25.780494 7fd83ae68a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:07:25.780495 7fd83ae68a80 Options.allow_ingest_behind: 0
+2021/03/14-01:07:25.780496 7fd83ae68a80 Options.preserve_deletes: 0
+2021/03/14-01:07:25.780496 7fd83ae68a80 Options.two_write_queues: 0
+2021/03/14-01:07:25.780497 7fd83ae68a80 Options.manual_wal_flush: 0
+2021/03/14-01:07:25.780498 7fd83ae68a80 Options.max_background_jobs: 16
+2021/03/14-01:07:25.780498 7fd83ae68a80 Options.max_background_compactions: -1
+2021/03/14-01:07:25.780499 7fd83ae68a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:07:25.780499 7fd83ae68a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:07:25.780500 7fd83ae68a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:07:25.780501 7fd83ae68a80 Options.max_total_wal_size: 0
+2021/03/14-01:07:25.780501 7fd83ae68a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:07:25.780502 7fd83ae68a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:07:25.780503 7fd83ae68a80 Options.max_open_files: -1
+2021/03/14-01:07:25.780503 7fd83ae68a80 Options.bytes_per_sync: 0
+2021/03/14-01:07:25.780504 7fd83ae68a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:07:25.780504 7fd83ae68a80 Options.compaction_readahead_size: 0
+2021/03/14-01:07:25.780505 7fd83ae68a80 Compression algorithms supported:
+2021/03/14-01:07:25.780505 7fd83ae68a80 Snappy supported: 1
+2021/03/14-01:07:25.780506 7fd83ae68a80 Zlib supported: 1
+2021/03/14-01:07:25.780507 7fd83ae68a80 Bzip supported: 1
+2021/03/14-01:07:25.780507 7fd83ae68a80 LZ4 supported: 1
+2021/03/14-01:07:25.780508 7fd83ae68a80 ZSTDNotFinal supported: 1
+2021/03/14-01:07:25.780512 7fd83ae68a80 ZSTD supported: 1
+2021/03/14-01:07:25.780515 7fd83ae68a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:07:25.780516 7fd83ae68a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:07:25.780606 7fd83ae68a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:07:25.780657 7fd83ae68a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:07:25.780659 7fd83ae68a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:07:25.780660 7fd83ae68a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:07:25.780660 7fd83ae68a80 Options.compaction_filter: None
+2021/03/14-01:07:25.780661 7fd83ae68a80 Options.compaction_filter_factory: None
+2021/03/14-01:07:25.780661 7fd83ae68a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:07:25.780662 7fd83ae68a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:07:25.780676 7fd83ae68a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1b2a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1b0fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:07:25.780677 7fd83ae68a80 Options.write_buffer_size: 134217728
+2021/03/14-01:07:25.780677 7fd83ae68a80 Options.max_write_buffer_number: 6
+2021/03/14-01:07:25.780678 7fd83ae68a80 Options.compression[0]: NoCompression
+2021/03/14-01:07:25.780679 7fd83ae68a80 Options.compression[1]: NoCompression
+2021/03/14-01:07:25.780679 7fd83ae68a80 Options.compression[2]: Snappy
+2021/03/14-01:07:25.780680 7fd83ae68a80 Options.compression[3]: Snappy
+2021/03/14-01:07:25.780680 7fd83ae68a80 Options.compression[4]: Snappy
+2021/03/14-01:07:25.780681 7fd83ae68a80 Options.compression[5]: Snappy
+2021/03/14-01:07:25.780682 7fd83ae68a80 Options.compression[6]: Snappy
+2021/03/14-01:07:25.780682 7fd83ae68a80 Options.bottommost_compression: Disabled
+2021/03/14-01:07:25.780683 7fd83ae68a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:07:25.780684 7fd83ae68a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:07:25.780684 7fd83ae68a80 Options.num_levels: 7
+2021/03/14-01:07:25.780685 7fd83ae68a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:07:25.780685 7fd83ae68a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:07:25.780686 7fd83ae68a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:07:25.780687 7fd83ae68a80 Options.compression_opts.level: -1
+2021/03/14-01:07:25.780687 7fd83ae68a80 Options.compression_opts.strategy: 0
+2021/03/14-01:07:25.780688 7fd83ae68a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:07:25.780688 7fd83ae68a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:07:25.780689 7fd83ae68a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:07:25.780689 7fd83ae68a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:07:25.780690 7fd83ae68a80 Options.target_file_size_base: 67108864
+2021/03/14-01:07:25.780691 7fd83ae68a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:07:25.780691 7fd83ae68a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:07:25.780692 7fd83ae68a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:07:25.780692 7fd83ae68a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:07:25.780694 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:07:25.780702 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:07:25.780702 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:07:25.780703 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:07:25.780704 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:07:25.780704 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:07:25.780705 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:07:25.780705 7fd83ae68a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:07:25.780706 7fd83ae68a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:07:25.780706 7fd83ae68a80 Options.arena_block_size: 16777216
+2021/03/14-01:07:25.780707 7fd83ae68a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:07:25.780708 7fd83ae68a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:07:25.780708 7fd83ae68a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:07:25.780709 7fd83ae68a80 Options.disable_auto_compactions: 0
+2021/03/14-01:07:25.780710 7fd83ae68a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:07:25.780711 7fd83ae68a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:07:25.780712 7fd83ae68a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:07:25.780712 7fd83ae68a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:07:25.780713 7fd83ae68a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:07:25.780713 7fd83ae68a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:07:25.780714 7fd83ae68a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:07:25.780715 7fd83ae68a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:07:25.780716 7fd83ae68a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:07:25.780716 7fd83ae68a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:07:25.780717 7fd83ae68a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:07:25.780717 7fd83ae68a80 Options.table_properties_collectors:
+2021/03/14-01:07:25.780718 7fd83ae68a80 Options.inplace_update_support: 0
+2021/03/14-01:07:25.780719 7fd83ae68a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:07:25.780719 7fd83ae68a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:07:25.780720 7fd83ae68a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:07:25.780721 7fd83ae68a80 Options.bloom_locality: 0
+2021/03/14-01:07:25.780721 7fd83ae68a80 Options.max_successive_merges: 0
+2021/03/14-01:07:25.780722 7fd83ae68a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:07:25.780722 7fd83ae68a80 Options.paranoid_file_checks: 0
+2021/03/14-01:07:25.780723 7fd83ae68a80 Options.force_consistency_checks: 0
+2021/03/14-01:07:25.780723 7fd83ae68a80 Options.report_bg_io_stats: 0
+2021/03/14-01:07:25.781144 7fd83ae68a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:07:25.781147 7fd83ae68a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:07:25.781262 7fd83ae68a80 EVENT_LOG_v1 {"time_micros": 1615680445781251, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:07:25.781282 7fd83ae68a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:07:26.451891 7fd83ae68a80 EVENT_LOG_v1 {"time_micros": 1615680446451888, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680774630487 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680774630487
new file mode 100644
index 0000000..3bc3b47
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680774630487
@@ -0,0 +1,186 @@
+2021/03/14-01:07:26.464831 7fd83ae68a80 RocksDB version: 5.11.3
+2021/03/14-01:07:26.464885 7fd83ae68a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:07:26.464887 7fd83ae68a80 Compile date Mar 13 2021
+2021/03/14-01:07:26.464892 7fd83ae68a80 DB SUMMARY
+2021/03/14-01:07:26.464993 7fd83ae68a80 CURRENT file: CURRENT
+2021/03/14-01:07:26.464994 7fd83ae68a80 IDENTITY file: IDENTITY
+2021/03/14-01:07:26.465004 7fd83ae68a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:07:26.465005 7fd83ae68a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:07:26.465006 7fd83ae68a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:07:26.465012 7fd83ae68a80 Options.error_if_exists: 0
+2021/03/14-01:07:26.465012 7fd83ae68a80 Options.create_if_missing: 1
+2021/03/14-01:07:26.465013 7fd83ae68a80 Options.paranoid_checks: 1
+2021/03/14-01:07:26.465014 7fd83ae68a80 Options.env: 0x7fd83b822080
+2021/03/14-01:07:26.465014 7fd83ae68a80 Options.info_log: 0x1b32ca0
+2021/03/14-01:07:26.465015 7fd83ae68a80 Options.max_file_opening_threads: 16
+2021/03/14-01:07:26.465016 7fd83ae68a80 Options.statistics: (nil)
+2021/03/14-01:07:26.465016 7fd83ae68a80 Options.use_fsync: 0
+2021/03/14-01:07:26.465017 7fd83ae68a80 Options.max_log_file_size: 0
+2021/03/14-01:07:26.465017 7fd83ae68a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:07:26.465018 7fd83ae68a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:07:26.465019 7fd83ae68a80 Options.keep_log_file_num: 1000
+2021/03/14-01:07:26.465019 7fd83ae68a80 Options.recycle_log_file_num: 0
+2021/03/14-01:07:26.465020 7fd83ae68a80 Options.allow_fallocate: 1
+2021/03/14-01:07:26.465020 7fd83ae68a80 Options.allow_mmap_reads: 0
+2021/03/14-01:07:26.465021 7fd83ae68a80 Options.allow_mmap_writes: 0
+2021/03/14-01:07:26.465021 7fd83ae68a80 Options.use_direct_reads: 0
+2021/03/14-01:07:26.465022 7fd83ae68a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:07:26.465023 7fd83ae68a80 Options.create_missing_column_families: 0
+2021/03/14-01:07:26.465023 7fd83ae68a80 Options.db_log_dir:
+2021/03/14-01:07:26.465024 7fd83ae68a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:07:26.465024 7fd83ae68a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:07:26.465025 7fd83ae68a80 Options.max_subcompactions: 1
+2021/03/14-01:07:26.465025 7fd83ae68a80 Options.max_background_flushes: -1
+2021/03/14-01:07:26.465026 7fd83ae68a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:07:26.465027 7fd83ae68a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:07:26.465027 7fd83ae68a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:07:26.465028 7fd83ae68a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:07:26.465028 7fd83ae68a80 Options.advise_random_on_open: 1
+2021/03/14-01:07:26.465029 7fd83ae68a80 Options.db_write_buffer_size: 0
+2021/03/14-01:07:26.465029 7fd83ae68a80 Options.write_buffer_manager: 0x1b1ab90
+2021/03/14-01:07:26.465030 7fd83ae68a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:07:26.465031 7fd83ae68a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:07:26.465031 7fd83ae68a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:07:26.465032 7fd83ae68a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:07:26.465032 7fd83ae68a80 Options.rate_limiter: (nil)
+2021/03/14-01:07:26.465034 7fd83ae68a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:07:26.465042 7fd83ae68a80 Options.wal_recovery_mode: 2
+2021/03/14-01:07:26.465042 7fd83ae68a80 Options.enable_thread_tracking: 0
+2021/03/14-01:07:26.465043 7fd83ae68a80 Options.enable_pipelined_write: 0
+2021/03/14-01:07:26.465043 7fd83ae68a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:07:26.465044 7fd83ae68a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:07:26.465045 7fd83ae68a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:07:26.465045 7fd83ae68a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:07:26.465046 7fd83ae68a80 Options.row_cache: None
+2021/03/14-01:07:26.465046 7fd83ae68a80 Options.wal_filter: None
+2021/03/14-01:07:26.465047 7fd83ae68a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:07:26.465047 7fd83ae68a80 Options.allow_ingest_behind: 0
+2021/03/14-01:07:26.465048 7fd83ae68a80 Options.preserve_deletes: 0
+2021/03/14-01:07:26.465049 7fd83ae68a80 Options.two_write_queues: 0
+2021/03/14-01:07:26.465049 7fd83ae68a80 Options.manual_wal_flush: 0
+2021/03/14-01:07:26.465050 7fd83ae68a80 Options.max_background_jobs: 16
+2021/03/14-01:07:26.465051 7fd83ae68a80 Options.max_background_compactions: -1
+2021/03/14-01:07:26.465051 7fd83ae68a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:07:26.465052 7fd83ae68a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:07:26.465053 7fd83ae68a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:07:26.465053 7fd83ae68a80 Options.max_total_wal_size: 0
+2021/03/14-01:07:26.465054 7fd83ae68a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:07:26.465054 7fd83ae68a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:07:26.465055 7fd83ae68a80 Options.max_open_files: -1
+2021/03/14-01:07:26.465055 7fd83ae68a80 Options.bytes_per_sync: 0
+2021/03/14-01:07:26.465056 7fd83ae68a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:07:26.465057 7fd83ae68a80 Options.compaction_readahead_size: 0
+2021/03/14-01:07:26.465057 7fd83ae68a80 Compression algorithms supported:
+2021/03/14-01:07:26.465058 7fd83ae68a80 Snappy supported: 1
+2021/03/14-01:07:26.465058 7fd83ae68a80 Zlib supported: 1
+2021/03/14-01:07:26.465059 7fd83ae68a80 Bzip supported: 1
+2021/03/14-01:07:26.465059 7fd83ae68a80 LZ4 supported: 1
+2021/03/14-01:07:26.465060 7fd83ae68a80 ZSTDNotFinal supported: 1
+2021/03/14-01:07:26.465064 7fd83ae68a80 ZSTD supported: 1
+2021/03/14-01:07:26.465067 7fd83ae68a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:07:26.465068 7fd83ae68a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:07:26.465157 7fd83ae68a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:07:26.465208 7fd83ae68a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:07:26.465210 7fd83ae68a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:07:26.465211 7fd83ae68a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:07:26.465212 7fd83ae68a80 Options.compaction_filter: None
+2021/03/14-01:07:26.465212 7fd83ae68a80 Options.compaction_filter_factory: None
+2021/03/14-01:07:26.465213 7fd83ae68a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:07:26.465214 7fd83ae68a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:07:26.465227 7fd83ae68a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1b2a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1b0fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:07:26.465228 7fd83ae68a80 Options.write_buffer_size: 134217728
+2021/03/14-01:07:26.465229 7fd83ae68a80 Options.max_write_buffer_number: 6
+2021/03/14-01:07:26.465229 7fd83ae68a80 Options.compression[0]: NoCompression
+2021/03/14-01:07:26.465230 7fd83ae68a80 Options.compression[1]: NoCompression
+2021/03/14-01:07:26.465231 7fd83ae68a80 Options.compression[2]: Snappy
+2021/03/14-01:07:26.465231 7fd83ae68a80 Options.compression[3]: Snappy
+2021/03/14-01:07:26.465232 7fd83ae68a80 Options.compression[4]: Snappy
+2021/03/14-01:07:26.465233 7fd83ae68a80 Options.compression[5]: Snappy
+2021/03/14-01:07:26.465233 7fd83ae68a80 Options.compression[6]: Snappy
+2021/03/14-01:07:26.465234 7fd83ae68a80 Options.bottommost_compression: Disabled
+2021/03/14-01:07:26.465235 7fd83ae68a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:07:26.465235 7fd83ae68a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:07:26.465236 7fd83ae68a80 Options.num_levels: 7
+2021/03/14-01:07:26.465236 7fd83ae68a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:07:26.465237 7fd83ae68a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:07:26.465243 7fd83ae68a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:07:26.465244 7fd83ae68a80 Options.compression_opts.level: -1
+2021/03/14-01:07:26.465245 7fd83ae68a80 Options.compression_opts.strategy: 0
+2021/03/14-01:07:26.465246 7fd83ae68a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:07:26.465246 7fd83ae68a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:07:26.465247 7fd83ae68a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:07:26.465248 7fd83ae68a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:07:26.465248 7fd83ae68a80 Options.target_file_size_base: 67108864
+2021/03/14-01:07:26.465249 7fd83ae68a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:07:26.465250 7fd83ae68a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:07:26.465250 7fd83ae68a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:07:26.465251 7fd83ae68a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:07:26.465252 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:07:26.465261 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:07:26.465262 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:07:26.465262 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:07:26.465263 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:07:26.465264 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:07:26.465264 7fd83ae68a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:07:26.465265 7fd83ae68a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:07:26.465265 7fd83ae68a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:07:26.465266 7fd83ae68a80 Options.arena_block_size: 16777216
+2021/03/14-01:07:26.465266 7fd83ae68a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:07:26.465267 7fd83ae68a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:07:26.465268 7fd83ae68a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:07:26.465268 7fd83ae68a80 Options.disable_auto_compactions: 0
+2021/03/14-01:07:26.465270 7fd83ae68a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:07:26.465271 7fd83ae68a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:07:26.465271 7fd83ae68a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:07:26.465272 7fd83ae68a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:07:26.465272 7fd83ae68a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:07:26.465273 7fd83ae68a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:07:26.465273 7fd83ae68a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:07:26.465274 7fd83ae68a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:07:26.465275 7fd83ae68a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:07:26.465276 7fd83ae68a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:07:26.465276 7fd83ae68a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:07:26.465277 7fd83ae68a80 Options.table_properties_collectors:
+2021/03/14-01:07:26.465277 7fd83ae68a80 Options.inplace_update_support: 0
+2021/03/14-01:07:26.465278 7fd83ae68a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:07:26.465278 7fd83ae68a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:07:26.465279 7fd83ae68a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:07:26.465280 7fd83ae68a80 Options.bloom_locality: 0
+2021/03/14-01:07:26.465280 7fd83ae68a80 Options.max_successive_merges: 0
+2021/03/14-01:07:26.465281 7fd83ae68a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:07:26.465282 7fd83ae68a80 Options.paranoid_file_checks: 0
+2021/03/14-01:07:26.465282 7fd83ae68a80 Options.force_consistency_checks: 0
+2021/03/14-01:07:26.465283 7fd83ae68a80 Options.report_bg_io_stats: 0
+2021/03/14-01:07:26.465672 7fd83ae68a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:07:26.465675 7fd83ae68a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:07:26.465787 7fd83ae68a80 EVENT_LOG_v1 {"time_micros": 1615680446465777, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:07:26.465792 7fd83ae68a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:07:27.133827 7fd83ae68a80 EVENT_LOG_v1 {"time_micros": 1615680447133824, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680775329622 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680775329622
new file mode 100644
index 0000000..82c5ee6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680775329622
@@ -0,0 +1,186 @@
+2021/03/14-01:12:54.631057 7fbc3912da80 RocksDB version: 5.11.3
+2021/03/14-01:12:54.631141 7fbc3912da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:12:54.631143 7fbc3912da80 Compile date Mar 13 2021
+2021/03/14-01:12:54.631147 7fbc3912da80 DB SUMMARY
+2021/03/14-01:12:54.631288 7fbc3912da80 CURRENT file: CURRENT
+2021/03/14-01:12:54.631289 7fbc3912da80 IDENTITY file: IDENTITY
+2021/03/14-01:12:54.631300 7fbc3912da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:12:54.631302 7fbc3912da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:12:54.631303 7fbc3912da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:12:54.631310 7fbc3912da80 Options.error_if_exists: 0
+2021/03/14-01:12:54.631311 7fbc3912da80 Options.create_if_missing: 1
+2021/03/14-01:12:54.631311 7fbc3912da80 Options.paranoid_checks: 1
+2021/03/14-01:12:54.631312 7fbc3912da80 Options.env: 0x7fbc39ae7080
+2021/03/14-01:12:54.631313 7fbc3912da80 Options.info_log: 0x27d0ca0
+2021/03/14-01:12:54.631313 7fbc3912da80 Options.max_file_opening_threads: 16
+2021/03/14-01:12:54.631314 7fbc3912da80 Options.statistics: (nil)
+2021/03/14-01:12:54.631315 7fbc3912da80 Options.use_fsync: 0
+2021/03/14-01:12:54.631316 7fbc3912da80 Options.max_log_file_size: 0
+2021/03/14-01:12:54.631316 7fbc3912da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:12:54.631317 7fbc3912da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:12:54.631318 7fbc3912da80 Options.keep_log_file_num: 1000
+2021/03/14-01:12:54.631318 7fbc3912da80 Options.recycle_log_file_num: 0
+2021/03/14-01:12:54.631319 7fbc3912da80 Options.allow_fallocate: 1
+2021/03/14-01:12:54.631320 7fbc3912da80 Options.allow_mmap_reads: 0
+2021/03/14-01:12:54.631320 7fbc3912da80 Options.allow_mmap_writes: 0
+2021/03/14-01:12:54.631321 7fbc3912da80 Options.use_direct_reads: 0
+2021/03/14-01:12:54.631322 7fbc3912da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:12:54.631322 7fbc3912da80 Options.create_missing_column_families: 0
+2021/03/14-01:12:54.631323 7fbc3912da80 Options.db_log_dir:
+2021/03/14-01:12:54.631323 7fbc3912da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:12:54.631324 7fbc3912da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:12:54.631325 7fbc3912da80 Options.max_subcompactions: 1
+2021/03/14-01:12:54.631325 7fbc3912da80 Options.max_background_flushes: -1
+2021/03/14-01:12:54.631326 7fbc3912da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:12:54.631327 7fbc3912da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:12:54.631327 7fbc3912da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:12:54.631328 7fbc3912da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:12:54.631329 7fbc3912da80 Options.advise_random_on_open: 1
+2021/03/14-01:12:54.631329 7fbc3912da80 Options.db_write_buffer_size: 0
+2021/03/14-01:12:54.631330 7fbc3912da80 Options.write_buffer_manager: 0x27b8b90
+2021/03/14-01:12:54.631331 7fbc3912da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:12:54.631331 7fbc3912da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:12:54.631332 7fbc3912da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:12:54.631333 7fbc3912da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:12:54.631333 7fbc3912da80 Options.rate_limiter: (nil)
+2021/03/14-01:12:54.631335 7fbc3912da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:12:54.631347 7fbc3912da80 Options.wal_recovery_mode: 2
+2021/03/14-01:12:54.631348 7fbc3912da80 Options.enable_thread_tracking: 0
+2021/03/14-01:12:54.631348 7fbc3912da80 Options.enable_pipelined_write: 0
+2021/03/14-01:12:54.631349 7fbc3912da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:12:54.631349 7fbc3912da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:12:54.631350 7fbc3912da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:12:54.631351 7fbc3912da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:12:54.631351 7fbc3912da80 Options.row_cache: None
+2021/03/14-01:12:54.631352 7fbc3912da80 Options.wal_filter: None
+2021/03/14-01:12:54.631353 7fbc3912da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:12:54.631354 7fbc3912da80 Options.allow_ingest_behind: 0
+2021/03/14-01:12:54.631354 7fbc3912da80 Options.preserve_deletes: 0
+2021/03/14-01:12:54.631355 7fbc3912da80 Options.two_write_queues: 0
+2021/03/14-01:12:54.631355 7fbc3912da80 Options.manual_wal_flush: 0
+2021/03/14-01:12:54.631357 7fbc3912da80 Options.max_background_jobs: 16
+2021/03/14-01:12:54.631358 7fbc3912da80 Options.max_background_compactions: -1
+2021/03/14-01:12:54.631358 7fbc3912da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:12:54.631359 7fbc3912da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:12:54.631360 7fbc3912da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:12:54.631360 7fbc3912da80 Options.max_total_wal_size: 0
+2021/03/14-01:12:54.631361 7fbc3912da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:12:54.631362 7fbc3912da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:12:54.631362 7fbc3912da80 Options.max_open_files: -1
+2021/03/14-01:12:54.631363 7fbc3912da80 Options.bytes_per_sync: 0
+2021/03/14-01:12:54.631363 7fbc3912da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:12:54.631364 7fbc3912da80 Options.compaction_readahead_size: 0
+2021/03/14-01:12:54.631365 7fbc3912da80 Compression algorithms supported:
+2021/03/14-01:12:54.631365 7fbc3912da80 Snappy supported: 1
+2021/03/14-01:12:54.631366 7fbc3912da80 Zlib supported: 1
+2021/03/14-01:12:54.631367 7fbc3912da80 Bzip supported: 1
+2021/03/14-01:12:54.631367 7fbc3912da80 LZ4 supported: 1
+2021/03/14-01:12:54.631368 7fbc3912da80 ZSTDNotFinal supported: 1
+2021/03/14-01:12:54.631374 7fbc3912da80 ZSTD supported: 1
+2021/03/14-01:12:54.631379 7fbc3912da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:12:54.631381 7fbc3912da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:12:54.631555 7fbc3912da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:12:54.631638 7fbc3912da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:12:54.631641 7fbc3912da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:12:54.631642 7fbc3912da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:12:54.631643 7fbc3912da80 Options.compaction_filter: None
+2021/03/14-01:12:54.631644 7fbc3912da80 Options.compaction_filter_factory: None
+2021/03/14-01:12:54.631644 7fbc3912da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:12:54.631645 7fbc3912da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:12:54.631665 7fbc3912da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x27c8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x27adc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:12:54.631666 7fbc3912da80 Options.write_buffer_size: 134217728
+2021/03/14-01:12:54.631667 7fbc3912da80 Options.max_write_buffer_number: 6
+2021/03/14-01:12:54.631667 7fbc3912da80 Options.compression[0]: NoCompression
+2021/03/14-01:12:54.631668 7fbc3912da80 Options.compression[1]: NoCompression
+2021/03/14-01:12:54.631669 7fbc3912da80 Options.compression[2]: Snappy
+2021/03/14-01:12:54.631670 7fbc3912da80 Options.compression[3]: Snappy
+2021/03/14-01:12:54.631670 7fbc3912da80 Options.compression[4]: Snappy
+2021/03/14-01:12:54.631671 7fbc3912da80 Options.compression[5]: Snappy
+2021/03/14-01:12:54.631671 7fbc3912da80 Options.compression[6]: Snappy
+2021/03/14-01:12:54.631672 7fbc3912da80 Options.bottommost_compression: Disabled
+2021/03/14-01:12:54.631673 7fbc3912da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:12:54.631674 7fbc3912da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:12:54.631674 7fbc3912da80 Options.num_levels: 7
+2021/03/14-01:12:54.631675 7fbc3912da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:12:54.631676 7fbc3912da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:12:54.631676 7fbc3912da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:12:54.631677 7fbc3912da80 Options.compression_opts.level: -1
+2021/03/14-01:12:54.631678 7fbc3912da80 Options.compression_opts.strategy: 0
+2021/03/14-01:12:54.631678 7fbc3912da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:12:54.631679 7fbc3912da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:12:54.631680 7fbc3912da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:12:54.631680 7fbc3912da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:12:54.631681 7fbc3912da80 Options.target_file_size_base: 67108864
+2021/03/14-01:12:54.631682 7fbc3912da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:12:54.631682 7fbc3912da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:12:54.631683 7fbc3912da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:12:54.631684 7fbc3912da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:12:54.631686 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:12:54.631695 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:12:54.631696 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:12:54.631697 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:12:54.631698 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:12:54.631698 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:12:54.631699 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:12:54.631699 7fbc3912da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:12:54.631700 7fbc3912da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:12:54.631701 7fbc3912da80 Options.arena_block_size: 16777216
+2021/03/14-01:12:54.631701 7fbc3912da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:12:54.631702 7fbc3912da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:12:54.631703 7fbc3912da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:12:54.631703 7fbc3912da80 Options.disable_auto_compactions: 0
+2021/03/14-01:12:54.631706 7fbc3912da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:12:54.631707 7fbc3912da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:12:54.631707 7fbc3912da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:12:54.631708 7fbc3912da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:12:54.631709 7fbc3912da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:12:54.631709 7fbc3912da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:12:54.631710 7fbc3912da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:12:54.631712 7fbc3912da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:12:54.631712 7fbc3912da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:12:54.631713 7fbc3912da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:12:54.631714 7fbc3912da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:12:54.631714 7fbc3912da80 Options.table_properties_collectors:
+2021/03/14-01:12:54.631715 7fbc3912da80 Options.inplace_update_support: 0
+2021/03/14-01:12:54.631716 7fbc3912da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:12:54.631717 7fbc3912da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:12:54.631718 7fbc3912da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:12:54.631718 7fbc3912da80 Options.bloom_locality: 0
+2021/03/14-01:12:54.631719 7fbc3912da80 Options.max_successive_merges: 0
+2021/03/14-01:12:54.631720 7fbc3912da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:12:54.631720 7fbc3912da80 Options.paranoid_file_checks: 0
+2021/03/14-01:12:54.631721 7fbc3912da80 Options.force_consistency_checks: 0
+2021/03/14-01:12:54.631722 7fbc3912da80 Options.report_bg_io_stats: 0
+2021/03/14-01:12:54.632385 7fbc3912da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:12:54.632391 7fbc3912da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:12:54.632711 7fbc3912da80 EVENT_LOG_v1 {"time_micros": 1615680774632675, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:12:54.632728 7fbc3912da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:12:55.317010 7fbc3912da80 EVENT_LOG_v1 {"time_micros": 1615680775317007, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680776012639 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680776012639
new file mode 100644
index 0000000..ba98d27
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680776012639
@@ -0,0 +1,186 @@
+2021/03/14-01:12:55.329977 7fbc3912da80 RocksDB version: 5.11.3
+2021/03/14-01:12:55.330031 7fbc3912da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:12:55.330033 7fbc3912da80 Compile date Mar 13 2021
+2021/03/14-01:12:55.330035 7fbc3912da80 DB SUMMARY
+2021/03/14-01:12:55.330137 7fbc3912da80 CURRENT file: CURRENT
+2021/03/14-01:12:55.330138 7fbc3912da80 IDENTITY file: IDENTITY
+2021/03/14-01:12:55.330148 7fbc3912da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:12:55.330149 7fbc3912da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:12:55.330150 7fbc3912da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:12:55.330156 7fbc3912da80 Options.error_if_exists: 0
+2021/03/14-01:12:55.330156 7fbc3912da80 Options.create_if_missing: 1
+2021/03/14-01:12:55.330157 7fbc3912da80 Options.paranoid_checks: 1
+2021/03/14-01:12:55.330158 7fbc3912da80 Options.env: 0x7fbc39ae7080
+2021/03/14-01:12:55.330158 7fbc3912da80 Options.info_log: 0x27d0ca0
+2021/03/14-01:12:55.330159 7fbc3912da80 Options.max_file_opening_threads: 16
+2021/03/14-01:12:55.330159 7fbc3912da80 Options.statistics: (nil)
+2021/03/14-01:12:55.330160 7fbc3912da80 Options.use_fsync: 0
+2021/03/14-01:12:55.330161 7fbc3912da80 Options.max_log_file_size: 0
+2021/03/14-01:12:55.330161 7fbc3912da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:12:55.330162 7fbc3912da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:12:55.330162 7fbc3912da80 Options.keep_log_file_num: 1000
+2021/03/14-01:12:55.330163 7fbc3912da80 Options.recycle_log_file_num: 0
+2021/03/14-01:12:55.330164 7fbc3912da80 Options.allow_fallocate: 1
+2021/03/14-01:12:55.330164 7fbc3912da80 Options.allow_mmap_reads: 0
+2021/03/14-01:12:55.330165 7fbc3912da80 Options.allow_mmap_writes: 0
+2021/03/14-01:12:55.330165 7fbc3912da80 Options.use_direct_reads: 0
+2021/03/14-01:12:55.330166 7fbc3912da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:12:55.330166 7fbc3912da80 Options.create_missing_column_families: 0
+2021/03/14-01:12:55.330167 7fbc3912da80 Options.db_log_dir:
+2021/03/14-01:12:55.330168 7fbc3912da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:12:55.330168 7fbc3912da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:12:55.330169 7fbc3912da80 Options.max_subcompactions: 1
+2021/03/14-01:12:55.330169 7fbc3912da80 Options.max_background_flushes: -1
+2021/03/14-01:12:55.330170 7fbc3912da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:12:55.330170 7fbc3912da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:12:55.330171 7fbc3912da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:12:55.330172 7fbc3912da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:12:55.330172 7fbc3912da80 Options.advise_random_on_open: 1
+2021/03/14-01:12:55.330173 7fbc3912da80 Options.db_write_buffer_size: 0
+2021/03/14-01:12:55.330173 7fbc3912da80 Options.write_buffer_manager: 0x27b8b90
+2021/03/14-01:12:55.330174 7fbc3912da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:12:55.330174 7fbc3912da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:12:55.330175 7fbc3912da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:12:55.330175 7fbc3912da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:12:55.330176 7fbc3912da80 Options.rate_limiter: (nil)
+2021/03/14-01:12:55.330177 7fbc3912da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:12:55.330185 7fbc3912da80 Options.wal_recovery_mode: 2
+2021/03/14-01:12:55.330186 7fbc3912da80 Options.enable_thread_tracking: 0
+2021/03/14-01:12:55.330187 7fbc3912da80 Options.enable_pipelined_write: 0
+2021/03/14-01:12:55.330187 7fbc3912da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:12:55.330188 7fbc3912da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:12:55.330188 7fbc3912da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:12:55.330189 7fbc3912da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:12:55.330190 7fbc3912da80 Options.row_cache: None
+2021/03/14-01:12:55.330190 7fbc3912da80 Options.wal_filter: None
+2021/03/14-01:12:55.330191 7fbc3912da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:12:55.330191 7fbc3912da80 Options.allow_ingest_behind: 0
+2021/03/14-01:12:55.330192 7fbc3912da80 Options.preserve_deletes: 0
+2021/03/14-01:12:55.330192 7fbc3912da80 Options.two_write_queues: 0
+2021/03/14-01:12:55.330193 7fbc3912da80 Options.manual_wal_flush: 0
+2021/03/14-01:12:55.330194 7fbc3912da80 Options.max_background_jobs: 16
+2021/03/14-01:12:55.330195 7fbc3912da80 Options.max_background_compactions: -1
+2021/03/14-01:12:55.330195 7fbc3912da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:12:55.330196 7fbc3912da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:12:55.330196 7fbc3912da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:12:55.330197 7fbc3912da80 Options.max_total_wal_size: 0
+2021/03/14-01:12:55.330198 7fbc3912da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:12:55.330198 7fbc3912da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:12:55.330199 7fbc3912da80 Options.max_open_files: -1
+2021/03/14-01:12:55.330199 7fbc3912da80 Options.bytes_per_sync: 0
+2021/03/14-01:12:55.330200 7fbc3912da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:12:55.330200 7fbc3912da80 Options.compaction_readahead_size: 0
+2021/03/14-01:12:55.330201 7fbc3912da80 Compression algorithms supported:
+2021/03/14-01:12:55.330202 7fbc3912da80 Snappy supported: 1
+2021/03/14-01:12:55.330202 7fbc3912da80 Zlib supported: 1
+2021/03/14-01:12:55.330203 7fbc3912da80 Bzip supported: 1
+2021/03/14-01:12:55.330203 7fbc3912da80 LZ4 supported: 1
+2021/03/14-01:12:55.330204 7fbc3912da80 ZSTDNotFinal supported: 1
+2021/03/14-01:12:55.330208 7fbc3912da80 ZSTD supported: 1
+2021/03/14-01:12:55.330211 7fbc3912da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:12:55.330212 7fbc3912da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:12:55.330323 7fbc3912da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:12:55.330379 7fbc3912da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:12:55.330380 7fbc3912da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:12:55.330381 7fbc3912da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:12:55.330382 7fbc3912da80 Options.compaction_filter: None
+2021/03/14-01:12:55.330382 7fbc3912da80 Options.compaction_filter_factory: None
+2021/03/14-01:12:55.330383 7fbc3912da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:12:55.330384 7fbc3912da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:12:55.330398 7fbc3912da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x27c8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x27adc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:12:55.330399 7fbc3912da80 Options.write_buffer_size: 134217728
+2021/03/14-01:12:55.330399 7fbc3912da80 Options.max_write_buffer_number: 6
+2021/03/14-01:12:55.330400 7fbc3912da80 Options.compression[0]: NoCompression
+2021/03/14-01:12:55.330401 7fbc3912da80 Options.compression[1]: NoCompression
+2021/03/14-01:12:55.330401 7fbc3912da80 Options.compression[2]: Snappy
+2021/03/14-01:12:55.330402 7fbc3912da80 Options.compression[3]: Snappy
+2021/03/14-01:12:55.330402 7fbc3912da80 Options.compression[4]: Snappy
+2021/03/14-01:12:55.330403 7fbc3912da80 Options.compression[5]: Snappy
+2021/03/14-01:12:55.330404 7fbc3912da80 Options.compression[6]: Snappy
+2021/03/14-01:12:55.330404 7fbc3912da80 Options.bottommost_compression: Disabled
+2021/03/14-01:12:55.330405 7fbc3912da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:12:55.330405 7fbc3912da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:12:55.330406 7fbc3912da80 Options.num_levels: 7
+2021/03/14-01:12:55.330407 7fbc3912da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:12:55.330407 7fbc3912da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:12:55.330408 7fbc3912da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:12:55.330408 7fbc3912da80 Options.compression_opts.level: -1
+2021/03/14-01:12:55.330409 7fbc3912da80 Options.compression_opts.strategy: 0
+2021/03/14-01:12:55.330409 7fbc3912da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:12:55.330410 7fbc3912da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:12:55.330411 7fbc3912da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:12:55.330411 7fbc3912da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:12:55.330412 7fbc3912da80 Options.target_file_size_base: 67108864
+2021/03/14-01:12:55.330412 7fbc3912da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:12:55.330413 7fbc3912da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:12:55.330413 7fbc3912da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:12:55.330414 7fbc3912da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:12:55.330416 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:12:55.330424 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:12:55.330425 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:12:55.330425 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:12:55.330426 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:12:55.330426 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:12:55.330427 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:12:55.330427 7fbc3912da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:12:55.330428 7fbc3912da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:12:55.330429 7fbc3912da80 Options.arena_block_size: 16777216
+2021/03/14-01:12:55.330429 7fbc3912da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:12:55.330430 7fbc3912da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:12:55.330430 7fbc3912da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:12:55.330431 7fbc3912da80 Options.disable_auto_compactions: 0
+2021/03/14-01:12:55.330432 7fbc3912da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:12:55.330433 7fbc3912da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:12:55.330434 7fbc3912da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:12:55.330434 7fbc3912da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:12:55.330435 7fbc3912da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:12:55.330435 7fbc3912da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:12:55.330436 7fbc3912da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:12:55.330437 7fbc3912da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:12:55.330437 7fbc3912da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:12:55.330438 7fbc3912da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:12:55.330439 7fbc3912da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:12:55.330439 7fbc3912da80 Options.table_properties_collectors:
+2021/03/14-01:12:55.330440 7fbc3912da80 Options.inplace_update_support: 0
+2021/03/14-01:12:55.330440 7fbc3912da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:12:55.330441 7fbc3912da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:12:55.330442 7fbc3912da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:12:55.330442 7fbc3912da80 Options.bloom_locality: 0
+2021/03/14-01:12:55.330443 7fbc3912da80 Options.max_successive_merges: 0
+2021/03/14-01:12:55.330443 7fbc3912da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:12:55.330444 7fbc3912da80 Options.paranoid_file_checks: 0
+2021/03/14-01:12:55.330444 7fbc3912da80 Options.force_consistency_checks: 0
+2021/03/14-01:12:55.330445 7fbc3912da80 Options.report_bg_io_stats: 0
+2021/03/14-01:12:55.330825 7fbc3912da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:12:55.330828 7fbc3912da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:12:55.330944 7fbc3912da80 EVENT_LOG_v1 {"time_micros": 1615680775330933, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:12:55.330949 7fbc3912da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:12:56.000063 7fbc3912da80 EVENT_LOG_v1 {"time_micros": 1615680776000060, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615680776690007 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680776690007
new file mode 100644
index 0000000..c7647a2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615680776690007
@@ -0,0 +1,186 @@
+2021/03/14-01:12:56.012997 7fbc3912da80 RocksDB version: 5.11.3
+2021/03/14-01:12:56.013051 7fbc3912da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:12:56.013052 7fbc3912da80 Compile date Mar 13 2021
+2021/03/14-01:12:56.013055 7fbc3912da80 DB SUMMARY
+2021/03/14-01:12:56.013156 7fbc3912da80 CURRENT file: CURRENT
+2021/03/14-01:12:56.013157 7fbc3912da80 IDENTITY file: IDENTITY
+2021/03/14-01:12:56.013167 7fbc3912da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:12:56.013168 7fbc3912da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:12:56.013169 7fbc3912da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:12:56.013174 7fbc3912da80 Options.error_if_exists: 0
+2021/03/14-01:12:56.013175 7fbc3912da80 Options.create_if_missing: 1
+2021/03/14-01:12:56.013176 7fbc3912da80 Options.paranoid_checks: 1
+2021/03/14-01:12:56.013176 7fbc3912da80 Options.env: 0x7fbc39ae7080
+2021/03/14-01:12:56.013177 7fbc3912da80 Options.info_log: 0x27d0ca0
+2021/03/14-01:12:56.013178 7fbc3912da80 Options.max_file_opening_threads: 16
+2021/03/14-01:12:56.013178 7fbc3912da80 Options.statistics: (nil)
+2021/03/14-01:12:56.013179 7fbc3912da80 Options.use_fsync: 0
+2021/03/14-01:12:56.013179 7fbc3912da80 Options.max_log_file_size: 0
+2021/03/14-01:12:56.013180 7fbc3912da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:12:56.013181 7fbc3912da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:12:56.013181 7fbc3912da80 Options.keep_log_file_num: 1000
+2021/03/14-01:12:56.013182 7fbc3912da80 Options.recycle_log_file_num: 0
+2021/03/14-01:12:56.013183 7fbc3912da80 Options.allow_fallocate: 1
+2021/03/14-01:12:56.013183 7fbc3912da80 Options.allow_mmap_reads: 0
+2021/03/14-01:12:56.013184 7fbc3912da80 Options.allow_mmap_writes: 0
+2021/03/14-01:12:56.013184 7fbc3912da80 Options.use_direct_reads: 0
+2021/03/14-01:12:56.013185 7fbc3912da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:12:56.013185 7fbc3912da80 Options.create_missing_column_families: 0
+2021/03/14-01:12:56.013186 7fbc3912da80 Options.db_log_dir:
+2021/03/14-01:12:56.013186 7fbc3912da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:12:56.013187 7fbc3912da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:12:56.013188 7fbc3912da80 Options.max_subcompactions: 1
+2021/03/14-01:12:56.013188 7fbc3912da80 Options.max_background_flushes: -1
+2021/03/14-01:12:56.013189 7fbc3912da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:12:56.013189 7fbc3912da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:12:56.013190 7fbc3912da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:12:56.013190 7fbc3912da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:12:56.013191 7fbc3912da80 Options.advise_random_on_open: 1
+2021/03/14-01:12:56.013192 7fbc3912da80 Options.db_write_buffer_size: 0
+2021/03/14-01:12:56.013192 7fbc3912da80 Options.write_buffer_manager: 0x27b8b90
+2021/03/14-01:12:56.013193 7fbc3912da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:12:56.013193 7fbc3912da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:12:56.013194 7fbc3912da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:12:56.013194 7fbc3912da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:12:56.013195 7fbc3912da80 Options.rate_limiter: (nil)
+2021/03/14-01:12:56.013196 7fbc3912da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:12:56.013204 7fbc3912da80 Options.wal_recovery_mode: 2
+2021/03/14-01:12:56.013205 7fbc3912da80 Options.enable_thread_tracking: 0
+2021/03/14-01:12:56.013205 7fbc3912da80 Options.enable_pipelined_write: 0
+2021/03/14-01:12:56.013206 7fbc3912da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:12:56.013207 7fbc3912da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:12:56.013207 7fbc3912da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:12:56.013208 7fbc3912da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:12:56.013208 7fbc3912da80 Options.row_cache: None
+2021/03/14-01:12:56.013209 7fbc3912da80 Options.wal_filter: None
+2021/03/14-01:12:56.013210 7fbc3912da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:12:56.013210 7fbc3912da80 Options.allow_ingest_behind: 0
+2021/03/14-01:12:56.013211 7fbc3912da80 Options.preserve_deletes: 0
+2021/03/14-01:12:56.013211 7fbc3912da80 Options.two_write_queues: 0
+2021/03/14-01:12:56.013212 7fbc3912da80 Options.manual_wal_flush: 0
+2021/03/14-01:12:56.013213 7fbc3912da80 Options.max_background_jobs: 16
+2021/03/14-01:12:56.013213 7fbc3912da80 Options.max_background_compactions: -1
+2021/03/14-01:12:56.013214 7fbc3912da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:12:56.013215 7fbc3912da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:12:56.013215 7fbc3912da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:12:56.013216 7fbc3912da80 Options.max_total_wal_size: 0
+2021/03/14-01:12:56.013216 7fbc3912da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:12:56.013217 7fbc3912da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:12:56.013218 7fbc3912da80 Options.max_open_files: -1
+2021/03/14-01:12:56.013218 7fbc3912da80 Options.bytes_per_sync: 0
+2021/03/14-01:12:56.013219 7fbc3912da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:12:56.013219 7fbc3912da80 Options.compaction_readahead_size: 0
+2021/03/14-01:12:56.013220 7fbc3912da80 Compression algorithms supported:
+2021/03/14-01:12:56.013220 7fbc3912da80 Snappy supported: 1
+2021/03/14-01:12:56.013221 7fbc3912da80 Zlib supported: 1
+2021/03/14-01:12:56.013222 7fbc3912da80 Bzip supported: 1
+2021/03/14-01:12:56.013222 7fbc3912da80 LZ4 supported: 1
+2021/03/14-01:12:56.013223 7fbc3912da80 ZSTDNotFinal supported: 1
+2021/03/14-01:12:56.013227 7fbc3912da80 ZSTD supported: 1
+2021/03/14-01:12:56.013230 7fbc3912da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:12:56.013231 7fbc3912da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:12:56.013339 7fbc3912da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:12:56.013394 7fbc3912da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:12:56.013395 7fbc3912da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:12:56.013396 7fbc3912da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:12:56.013397 7fbc3912da80 Options.compaction_filter: None
+2021/03/14-01:12:56.013398 7fbc3912da80 Options.compaction_filter_factory: None
+2021/03/14-01:12:56.013398 7fbc3912da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:12:56.013399 7fbc3912da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:12:56.013412 7fbc3912da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x27c8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x27adc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:12:56.013413 7fbc3912da80 Options.write_buffer_size: 134217728
+2021/03/14-01:12:56.013414 7fbc3912da80 Options.max_write_buffer_number: 6
+2021/03/14-01:12:56.013415 7fbc3912da80 Options.compression[0]: NoCompression
+2021/03/14-01:12:56.013415 7fbc3912da80 Options.compression[1]: NoCompression
+2021/03/14-01:12:56.013416 7fbc3912da80 Options.compression[2]: Snappy
+2021/03/14-01:12:56.013417 7fbc3912da80 Options.compression[3]: Snappy
+2021/03/14-01:12:56.013417 7fbc3912da80 Options.compression[4]: Snappy
+2021/03/14-01:12:56.013418 7fbc3912da80 Options.compression[5]: Snappy
+2021/03/14-01:12:56.013418 7fbc3912da80 Options.compression[6]: Snappy
+2021/03/14-01:12:56.013419 7fbc3912da80 Options.bottommost_compression: Disabled
+2021/03/14-01:12:56.013420 7fbc3912da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:12:56.013420 7fbc3912da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:12:56.013421 7fbc3912da80 Options.num_levels: 7
+2021/03/14-01:12:56.013421 7fbc3912da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:12:56.013422 7fbc3912da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:12:56.013423 7fbc3912da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:12:56.013423 7fbc3912da80 Options.compression_opts.level: -1
+2021/03/14-01:12:56.013424 7fbc3912da80 Options.compression_opts.strategy: 0
+2021/03/14-01:12:56.013424 7fbc3912da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:12:56.013425 7fbc3912da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:12:56.013426 7fbc3912da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:12:56.013426 7fbc3912da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:12:56.013427 7fbc3912da80 Options.target_file_size_base: 67108864
+2021/03/14-01:12:56.013427 7fbc3912da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:12:56.013428 7fbc3912da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:12:56.013428 7fbc3912da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:12:56.013429 7fbc3912da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:12:56.013431 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:12:56.013439 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:12:56.013440 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:12:56.013441 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:12:56.013441 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:12:56.013442 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:12:56.013442 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:12:56.013443 7fbc3912da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:12:56.013444 7fbc3912da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:12:56.013444 7fbc3912da80 Options.arena_block_size: 16777216
+2021/03/14-01:12:56.013445 7fbc3912da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:12:56.013445 7fbc3912da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:12:56.013446 7fbc3912da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:12:56.013447 7fbc3912da80 Options.disable_auto_compactions: 0
+2021/03/14-01:12:56.013448 7fbc3912da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:12:56.013449 7fbc3912da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:12:56.013450 7fbc3912da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:12:56.013450 7fbc3912da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:12:56.013451 7fbc3912da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:12:56.013451 7fbc3912da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:12:56.013452 7fbc3912da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:12:56.013453 7fbc3912da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:12:56.013454 7fbc3912da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:12:56.013454 7fbc3912da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:12:56.013455 7fbc3912da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:12:56.013455 7fbc3912da80 Options.table_properties_collectors:
+2021/03/14-01:12:56.013456 7fbc3912da80 Options.inplace_update_support: 0
+2021/03/14-01:12:56.013456 7fbc3912da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:12:56.013457 7fbc3912da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:12:56.013458 7fbc3912da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:12:56.013458 7fbc3912da80 Options.bloom_locality: 0
+2021/03/14-01:12:56.013459 7fbc3912da80 Options.max_successive_merges: 0
+2021/03/14-01:12:56.013460 7fbc3912da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:12:56.013460 7fbc3912da80 Options.paranoid_file_checks: 0
+2021/03/14-01:12:56.013461 7fbc3912da80 Options.force_consistency_checks: 0
+2021/03/14-01:12:56.013461 7fbc3912da80 Options.report_bg_io_stats: 0
+2021/03/14-01:12:56.013824 7fbc3912da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:12:56.013826 7fbc3912da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:12:56.013940 7fbc3912da80 EVENT_LOG_v1 {"time_micros": 1615680776013930, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:12:56.013945 7fbc3912da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:12:56.677317 7fbc3912da80 EVENT_LOG_v1 {"time_micros": 1615680776677314, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681057921298 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681057921298
new file mode 100644
index 0000000..3484d39
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681057921298
@@ -0,0 +1,186 @@
+2021/03/14-01:12:56.690372 7fbc3912da80 RocksDB version: 5.11.3
+2021/03/14-01:12:56.690427 7fbc3912da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:12:56.690429 7fbc3912da80 Compile date Mar 13 2021
+2021/03/14-01:12:56.690431 7fbc3912da80 DB SUMMARY
+2021/03/14-01:12:56.690531 7fbc3912da80 CURRENT file: CURRENT
+2021/03/14-01:12:56.690532 7fbc3912da80 IDENTITY file: IDENTITY
+2021/03/14-01:12:56.690542 7fbc3912da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:12:56.690543 7fbc3912da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:12:56.690544 7fbc3912da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:12:56.690549 7fbc3912da80 Options.error_if_exists: 0
+2021/03/14-01:12:56.690550 7fbc3912da80 Options.create_if_missing: 1
+2021/03/14-01:12:56.690551 7fbc3912da80 Options.paranoid_checks: 1
+2021/03/14-01:12:56.690551 7fbc3912da80 Options.env: 0x7fbc39ae7080
+2021/03/14-01:12:56.690552 7fbc3912da80 Options.info_log: 0x27d0ca0
+2021/03/14-01:12:56.690553 7fbc3912da80 Options.max_file_opening_threads: 16
+2021/03/14-01:12:56.690553 7fbc3912da80 Options.statistics: (nil)
+2021/03/14-01:12:56.690554 7fbc3912da80 Options.use_fsync: 0
+2021/03/14-01:12:56.690555 7fbc3912da80 Options.max_log_file_size: 0
+2021/03/14-01:12:56.690555 7fbc3912da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:12:56.690556 7fbc3912da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:12:56.690556 7fbc3912da80 Options.keep_log_file_num: 1000
+2021/03/14-01:12:56.690557 7fbc3912da80 Options.recycle_log_file_num: 0
+2021/03/14-01:12:56.690558 7fbc3912da80 Options.allow_fallocate: 1
+2021/03/14-01:12:56.690558 7fbc3912da80 Options.allow_mmap_reads: 0
+2021/03/14-01:12:56.690559 7fbc3912da80 Options.allow_mmap_writes: 0
+2021/03/14-01:12:56.690559 7fbc3912da80 Options.use_direct_reads: 0
+2021/03/14-01:12:56.690560 7fbc3912da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:12:56.690560 7fbc3912da80 Options.create_missing_column_families: 0
+2021/03/14-01:12:56.690561 7fbc3912da80 Options.db_log_dir:
+2021/03/14-01:12:56.690561 7fbc3912da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:12:56.690562 7fbc3912da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:12:56.690562 7fbc3912da80 Options.max_subcompactions: 1
+2021/03/14-01:12:56.690563 7fbc3912da80 Options.max_background_flushes: -1
+2021/03/14-01:12:56.690564 7fbc3912da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:12:56.690564 7fbc3912da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:12:56.690565 7fbc3912da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:12:56.690565 7fbc3912da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:12:56.690566 7fbc3912da80 Options.advise_random_on_open: 1
+2021/03/14-01:12:56.690566 7fbc3912da80 Options.db_write_buffer_size: 0
+2021/03/14-01:12:56.690567 7fbc3912da80 Options.write_buffer_manager: 0x27b8b90
+2021/03/14-01:12:56.690568 7fbc3912da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:12:56.690568 7fbc3912da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:12:56.690569 7fbc3912da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:12:56.690569 7fbc3912da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:12:56.690570 7fbc3912da80 Options.rate_limiter: (nil)
+2021/03/14-01:12:56.690571 7fbc3912da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:12:56.690579 7fbc3912da80 Options.wal_recovery_mode: 2
+2021/03/14-01:12:56.690579 7fbc3912da80 Options.enable_thread_tracking: 0
+2021/03/14-01:12:56.690580 7fbc3912da80 Options.enable_pipelined_write: 0
+2021/03/14-01:12:56.690581 7fbc3912da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:12:56.690581 7fbc3912da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:12:56.690582 7fbc3912da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:12:56.690582 7fbc3912da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:12:56.690583 7fbc3912da80 Options.row_cache: None
+2021/03/14-01:12:56.690583 7fbc3912da80 Options.wal_filter: None
+2021/03/14-01:12:56.690584 7fbc3912da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:12:56.690585 7fbc3912da80 Options.allow_ingest_behind: 0
+2021/03/14-01:12:56.690585 7fbc3912da80 Options.preserve_deletes: 0
+2021/03/14-01:12:56.690586 7fbc3912da80 Options.two_write_queues: 0
+2021/03/14-01:12:56.690586 7fbc3912da80 Options.manual_wal_flush: 0
+2021/03/14-01:12:56.690587 7fbc3912da80 Options.max_background_jobs: 16
+2021/03/14-01:12:56.690588 7fbc3912da80 Options.max_background_compactions: -1
+2021/03/14-01:12:56.690589 7fbc3912da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:12:56.690589 7fbc3912da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:12:56.690590 7fbc3912da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:12:56.690590 7fbc3912da80 Options.max_total_wal_size: 0
+2021/03/14-01:12:56.690591 7fbc3912da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:12:56.690591 7fbc3912da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:12:56.690592 7fbc3912da80 Options.max_open_files: -1
+2021/03/14-01:12:56.690593 7fbc3912da80 Options.bytes_per_sync: 0
+2021/03/14-01:12:56.690593 7fbc3912da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:12:56.690594 7fbc3912da80 Options.compaction_readahead_size: 0
+2021/03/14-01:12:56.690594 7fbc3912da80 Compression algorithms supported:
+2021/03/14-01:12:56.690595 7fbc3912da80 Snappy supported: 1
+2021/03/14-01:12:56.690595 7fbc3912da80 Zlib supported: 1
+2021/03/14-01:12:56.690596 7fbc3912da80 Bzip supported: 1
+2021/03/14-01:12:56.690596 7fbc3912da80 LZ4 supported: 1
+2021/03/14-01:12:56.690597 7fbc3912da80 ZSTDNotFinal supported: 1
+2021/03/14-01:12:56.690601 7fbc3912da80 ZSTD supported: 1
+2021/03/14-01:12:56.690604 7fbc3912da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:12:56.690605 7fbc3912da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:12:56.690695 7fbc3912da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:12:56.690750 7fbc3912da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:12:56.690752 7fbc3912da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:12:56.690753 7fbc3912da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:12:56.690754 7fbc3912da80 Options.compaction_filter: None
+2021/03/14-01:12:56.690754 7fbc3912da80 Options.compaction_filter_factory: None
+2021/03/14-01:12:56.690755 7fbc3912da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:12:56.690756 7fbc3912da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:12:56.690770 7fbc3912da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x27c8520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x27adc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:12:56.690771 7fbc3912da80 Options.write_buffer_size: 134217728
+2021/03/14-01:12:56.690772 7fbc3912da80 Options.max_write_buffer_number: 6
+2021/03/14-01:12:56.690772 7fbc3912da80 Options.compression[0]: NoCompression
+2021/03/14-01:12:56.690773 7fbc3912da80 Options.compression[1]: NoCompression
+2021/03/14-01:12:56.690774 7fbc3912da80 Options.compression[2]: Snappy
+2021/03/14-01:12:56.690774 7fbc3912da80 Options.compression[3]: Snappy
+2021/03/14-01:12:56.690775 7fbc3912da80 Options.compression[4]: Snappy
+2021/03/14-01:12:56.690776 7fbc3912da80 Options.compression[5]: Snappy
+2021/03/14-01:12:56.690776 7fbc3912da80 Options.compression[6]: Snappy
+2021/03/14-01:12:56.690777 7fbc3912da80 Options.bottommost_compression: Disabled
+2021/03/14-01:12:56.690777 7fbc3912da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:12:56.690778 7fbc3912da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:12:56.690779 7fbc3912da80 Options.num_levels: 7
+2021/03/14-01:12:56.690779 7fbc3912da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:12:56.690780 7fbc3912da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:12:56.690780 7fbc3912da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:12:56.690781 7fbc3912da80 Options.compression_opts.level: -1
+2021/03/14-01:12:56.690782 7fbc3912da80 Options.compression_opts.strategy: 0
+2021/03/14-01:12:56.690782 7fbc3912da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:12:56.690783 7fbc3912da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:12:56.690783 7fbc3912da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:12:56.690784 7fbc3912da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:12:56.690784 7fbc3912da80 Options.target_file_size_base: 67108864
+2021/03/14-01:12:56.690785 7fbc3912da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:12:56.690786 7fbc3912da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:12:56.690786 7fbc3912da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:12:56.690787 7fbc3912da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:12:56.690788 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:12:56.690796 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:12:56.690796 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:12:56.690797 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:12:56.690797 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:12:56.690798 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:12:56.690799 7fbc3912da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:12:56.690799 7fbc3912da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:12:56.690800 7fbc3912da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:12:56.690800 7fbc3912da80 Options.arena_block_size: 16777216
+2021/03/14-01:12:56.690801 7fbc3912da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:12:56.690801 7fbc3912da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:12:56.690802 7fbc3912da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:12:56.690803 7fbc3912da80 Options.disable_auto_compactions: 0
+2021/03/14-01:12:56.690804 7fbc3912da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:12:56.690805 7fbc3912da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:12:56.690806 7fbc3912da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:12:56.690806 7fbc3912da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:12:56.690807 7fbc3912da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:12:56.690807 7fbc3912da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:12:56.690808 7fbc3912da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:12:56.690809 7fbc3912da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:12:56.690809 7fbc3912da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:12:56.690810 7fbc3912da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:12:56.690811 7fbc3912da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:12:56.690811 7fbc3912da80 Options.table_properties_collectors:
+2021/03/14-01:12:56.690812 7fbc3912da80 Options.inplace_update_support: 0
+2021/03/14-01:12:56.690812 7fbc3912da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:12:56.690813 7fbc3912da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:12:56.690814 7fbc3912da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:12:56.690814 7fbc3912da80 Options.bloom_locality: 0
+2021/03/14-01:12:56.690815 7fbc3912da80 Options.max_successive_merges: 0
+2021/03/14-01:12:56.690815 7fbc3912da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:12:56.690816 7fbc3912da80 Options.paranoid_file_checks: 0
+2021/03/14-01:12:56.690816 7fbc3912da80 Options.force_consistency_checks: 0
+2021/03/14-01:12:56.690817 7fbc3912da80 Options.report_bg_io_stats: 0
+2021/03/14-01:12:56.691191 7fbc3912da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:12:56.691193 7fbc3912da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:12:56.691311 7fbc3912da80 EVENT_LOG_v1 {"time_micros": 1615680776691301, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:12:56.691317 7fbc3912da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:12:57.367022 7fbc3912da80 EVENT_LOG_v1 {"time_micros": 1615680777367019, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681058617699 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681058617699
new file mode 100644
index 0000000..067dc5f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681058617699
@@ -0,0 +1,186 @@
+2021/03/14-01:17:37.921796 7f39e26a5a80 RocksDB version: 5.11.3
+2021/03/14-01:17:37.921872 7f39e26a5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:17:37.921874 7f39e26a5a80 Compile date Mar 13 2021
+2021/03/14-01:17:37.921881 7f39e26a5a80 DB SUMMARY
+2021/03/14-01:17:37.922002 7f39e26a5a80 CURRENT file: CURRENT
+2021/03/14-01:17:37.922004 7f39e26a5a80 IDENTITY file: IDENTITY
+2021/03/14-01:17:37.922015 7f39e26a5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:17:37.922016 7f39e26a5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:17:37.922017 7f39e26a5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:17:37.922024 7f39e26a5a80 Options.error_if_exists: 0
+2021/03/14-01:17:37.922025 7f39e26a5a80 Options.create_if_missing: 1
+2021/03/14-01:17:37.922026 7f39e26a5a80 Options.paranoid_checks: 1
+2021/03/14-01:17:37.922026 7f39e26a5a80 Options.env: 0x7f39e305f080
+2021/03/14-01:17:37.922027 7f39e26a5a80 Options.info_log: 0x150eca0
+2021/03/14-01:17:37.922028 7f39e26a5a80 Options.max_file_opening_threads: 16
+2021/03/14-01:17:37.922028 7f39e26a5a80 Options.statistics: (nil)
+2021/03/14-01:17:37.922029 7f39e26a5a80 Options.use_fsync: 0
+2021/03/14-01:17:37.922030 7f39e26a5a80 Options.max_log_file_size: 0
+2021/03/14-01:17:37.922031 7f39e26a5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:17:37.922031 7f39e26a5a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:17:37.922032 7f39e26a5a80 Options.keep_log_file_num: 1000
+2021/03/14-01:17:37.922033 7f39e26a5a80 Options.recycle_log_file_num: 0
+2021/03/14-01:17:37.922033 7f39e26a5a80 Options.allow_fallocate: 1
+2021/03/14-01:17:37.922034 7f39e26a5a80 Options.allow_mmap_reads: 0
+2021/03/14-01:17:37.922035 7f39e26a5a80 Options.allow_mmap_writes: 0
+2021/03/14-01:17:37.922035 7f39e26a5a80 Options.use_direct_reads: 0
+2021/03/14-01:17:37.922036 7f39e26a5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:17:37.922036 7f39e26a5a80 Options.create_missing_column_families: 0
+2021/03/14-01:17:37.922037 7f39e26a5a80 Options.db_log_dir:
+2021/03/14-01:17:37.922038 7f39e26a5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:17:37.922038 7f39e26a5a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:17:37.922039 7f39e26a5a80 Options.max_subcompactions: 1
+2021/03/14-01:17:37.922040 7f39e26a5a80 Options.max_background_flushes: -1
+2021/03/14-01:17:37.922040 7f39e26a5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:17:37.922041 7f39e26a5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:17:37.922042 7f39e26a5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:17:37.922042 7f39e26a5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:17:37.922043 7f39e26a5a80 Options.advise_random_on_open: 1
+2021/03/14-01:17:37.922044 7f39e26a5a80 Options.db_write_buffer_size: 0
+2021/03/14-01:17:37.922044 7f39e26a5a80 Options.write_buffer_manager: 0x14f6b90
+2021/03/14-01:17:37.922045 7f39e26a5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:17:37.922046 7f39e26a5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:17:37.922046 7f39e26a5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:17:37.922047 7f39e26a5a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:17:37.922048 7f39e26a5a80 Options.rate_limiter: (nil)
+2021/03/14-01:17:37.922049 7f39e26a5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:17:37.922058 7f39e26a5a80 Options.wal_recovery_mode: 2
+2021/03/14-01:17:37.922059 7f39e26a5a80 Options.enable_thread_tracking: 0
+2021/03/14-01:17:37.922060 7f39e26a5a80 Options.enable_pipelined_write: 0
+2021/03/14-01:17:37.922061 7f39e26a5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:17:37.922061 7f39e26a5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:17:37.922062 7f39e26a5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:17:37.922063 7f39e26a5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:17:37.922063 7f39e26a5a80 Options.row_cache: None
+2021/03/14-01:17:37.922064 7f39e26a5a80 Options.wal_filter: None
+2021/03/14-01:17:37.922065 7f39e26a5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:17:37.922065 7f39e26a5a80 Options.allow_ingest_behind: 0
+2021/03/14-01:17:37.922066 7f39e26a5a80 Options.preserve_deletes: 0
+2021/03/14-01:17:37.922066 7f39e26a5a80 Options.two_write_queues: 0
+2021/03/14-01:17:37.922067 7f39e26a5a80 Options.manual_wal_flush: 0
+2021/03/14-01:17:37.922069 7f39e26a5a80 Options.max_background_jobs: 16
+2021/03/14-01:17:37.922069 7f39e26a5a80 Options.max_background_compactions: -1
+2021/03/14-01:17:37.922070 7f39e26a5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:17:37.922071 7f39e26a5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:17:37.922071 7f39e26a5a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:17:37.922072 7f39e26a5a80 Options.max_total_wal_size: 0
+2021/03/14-01:17:37.922073 7f39e26a5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:17:37.922073 7f39e26a5a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:17:37.922074 7f39e26a5a80 Options.max_open_files: -1
+2021/03/14-01:17:37.922075 7f39e26a5a80 Options.bytes_per_sync: 0
+2021/03/14-01:17:37.922075 7f39e26a5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:17:37.922076 7f39e26a5a80 Options.compaction_readahead_size: 0
+2021/03/14-01:17:37.922076 7f39e26a5a80 Compression algorithms supported:
+2021/03/14-01:17:37.922077 7f39e26a5a80 Snappy supported: 1
+2021/03/14-01:17:37.922078 7f39e26a5a80 Zlib supported: 1
+2021/03/14-01:17:37.922079 7f39e26a5a80 Bzip supported: 1
+2021/03/14-01:17:37.922079 7f39e26a5a80 LZ4 supported: 1
+2021/03/14-01:17:37.922080 7f39e26a5a80 ZSTDNotFinal supported: 1
+2021/03/14-01:17:37.922085 7f39e26a5a80 ZSTD supported: 1
+2021/03/14-01:17:37.922089 7f39e26a5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:17:37.922091 7f39e26a5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:17:37.922210 7f39e26a5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:17:37.922287 7f39e26a5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:17:37.922290 7f39e26a5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:17:37.922291 7f39e26a5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:17:37.922291 7f39e26a5a80 Options.compaction_filter: None
+2021/03/14-01:17:37.922292 7f39e26a5a80 Options.compaction_filter_factory: None
+2021/03/14-01:17:37.922293 7f39e26a5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:17:37.922294 7f39e26a5a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:17:37.922311 7f39e26a5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1506520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x14ebc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:17:37.922312 7f39e26a5a80 Options.write_buffer_size: 134217728
+2021/03/14-01:17:37.922313 7f39e26a5a80 Options.max_write_buffer_number: 6
+2021/03/14-01:17:37.922313 7f39e26a5a80 Options.compression[0]: NoCompression
+2021/03/14-01:17:37.922314 7f39e26a5a80 Options.compression[1]: NoCompression
+2021/03/14-01:17:37.922315 7f39e26a5a80 Options.compression[2]: Snappy
+2021/03/14-01:17:37.922316 7f39e26a5a80 Options.compression[3]: Snappy
+2021/03/14-01:17:37.922316 7f39e26a5a80 Options.compression[4]: Snappy
+2021/03/14-01:17:37.922317 7f39e26a5a80 Options.compression[5]: Snappy
+2021/03/14-01:17:37.922318 7f39e26a5a80 Options.compression[6]: Snappy
+2021/03/14-01:17:37.922318 7f39e26a5a80 Options.bottommost_compression: Disabled
+2021/03/14-01:17:37.922319 7f39e26a5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:17:37.922320 7f39e26a5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:17:37.922321 7f39e26a5a80 Options.num_levels: 7
+2021/03/14-01:17:37.922321 7f39e26a5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:17:37.922322 7f39e26a5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:17:37.922323 7f39e26a5a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:17:37.922323 7f39e26a5a80 Options.compression_opts.level: -1
+2021/03/14-01:17:37.922324 7f39e26a5a80 Options.compression_opts.strategy: 0
+2021/03/14-01:17:37.922325 7f39e26a5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:17:37.922325 7f39e26a5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:17:37.922326 7f39e26a5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:17:37.922327 7f39e26a5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:17:37.922327 7f39e26a5a80 Options.target_file_size_base: 67108864
+2021/03/14-01:17:37.922328 7f39e26a5a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:17:37.922329 7f39e26a5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:17:37.922329 7f39e26a5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:17:37.922330 7f39e26a5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:17:37.922332 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:17:37.922342 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:17:37.922343 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:17:37.922344 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:17:37.922345 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:17:37.922345 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:17:37.922346 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:17:37.922346 7f39e26a5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:17:37.922347 7f39e26a5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:17:37.922348 7f39e26a5a80 Options.arena_block_size: 16777216
+2021/03/14-01:17:37.922349 7f39e26a5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:17:37.922349 7f39e26a5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:17:37.922350 7f39e26a5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:17:37.922351 7f39e26a5a80 Options.disable_auto_compactions: 0
+2021/03/14-01:17:37.922352 7f39e26a5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:17:37.922353 7f39e26a5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:17:37.922354 7f39e26a5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:17:37.922355 7f39e26a5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:17:37.922355 7f39e26a5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:17:37.922356 7f39e26a5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:17:37.922357 7f39e26a5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:17:37.922357 7f39e26a5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:17:37.922358 7f39e26a5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:17:37.922359 7f39e26a5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:17:37.922359 7f39e26a5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:17:37.922360 7f39e26a5a80 Options.table_properties_collectors:
+2021/03/14-01:17:37.922361 7f39e26a5a80 Options.inplace_update_support: 0
+2021/03/14-01:17:37.922361 7f39e26a5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:17:37.922362 7f39e26a5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:17:37.922363 7f39e26a5a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:17:37.922364 7f39e26a5a80 Options.bloom_locality: 0
+2021/03/14-01:17:37.922364 7f39e26a5a80 Options.max_successive_merges: 0
+2021/03/14-01:17:37.922365 7f39e26a5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:17:37.922366 7f39e26a5a80 Options.paranoid_file_checks: 0
+2021/03/14-01:17:37.922366 7f39e26a5a80 Options.force_consistency_checks: 0
+2021/03/14-01:17:37.922367 7f39e26a5a80 Options.report_bg_io_stats: 0
+2021/03/14-01:17:37.922873 7f39e26a5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:17:37.922876 7f39e26a5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:17:37.923017 7f39e26a5a80 EVENT_LOG_v1 {"time_micros": 1615681057923001, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:17:37.923024 7f39e26a5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:17:38.605588 7f39e26a5a80 EVENT_LOG_v1 {"time_micros": 1615681058605585, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681059316120 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681059316120
new file mode 100644
index 0000000..a822259
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681059316120
@@ -0,0 +1,186 @@
+2021/03/14-01:17:38.618062 7f39e26a5a80 RocksDB version: 5.11.3
+2021/03/14-01:17:38.618122 7f39e26a5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:17:38.618124 7f39e26a5a80 Compile date Mar 13 2021
+2021/03/14-01:17:38.618128 7f39e26a5a80 DB SUMMARY
+2021/03/14-01:17:38.618230 7f39e26a5a80 CURRENT file: CURRENT
+2021/03/14-01:17:38.618231 7f39e26a5a80 IDENTITY file: IDENTITY
+2021/03/14-01:17:38.618255 7f39e26a5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:17:38.618256 7f39e26a5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:17:38.618257 7f39e26a5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:17:38.618263 7f39e26a5a80 Options.error_if_exists: 0
+2021/03/14-01:17:38.618264 7f39e26a5a80 Options.create_if_missing: 1
+2021/03/14-01:17:38.618264 7f39e26a5a80 Options.paranoid_checks: 1
+2021/03/14-01:17:38.618265 7f39e26a5a80 Options.env: 0x7f39e305f080
+2021/03/14-01:17:38.618266 7f39e26a5a80 Options.info_log: 0x150eca0
+2021/03/14-01:17:38.618266 7f39e26a5a80 Options.max_file_opening_threads: 16
+2021/03/14-01:17:38.618267 7f39e26a5a80 Options.statistics: (nil)
+2021/03/14-01:17:38.618268 7f39e26a5a80 Options.use_fsync: 0
+2021/03/14-01:17:38.618268 7f39e26a5a80 Options.max_log_file_size: 0
+2021/03/14-01:17:38.618269 7f39e26a5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:17:38.618269 7f39e26a5a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:17:38.618270 7f39e26a5a80 Options.keep_log_file_num: 1000
+2021/03/14-01:17:38.618271 7f39e26a5a80 Options.recycle_log_file_num: 0
+2021/03/14-01:17:38.618271 7f39e26a5a80 Options.allow_fallocate: 1
+2021/03/14-01:17:38.618272 7f39e26a5a80 Options.allow_mmap_reads: 0
+2021/03/14-01:17:38.618272 7f39e26a5a80 Options.allow_mmap_writes: 0
+2021/03/14-01:17:38.618273 7f39e26a5a80 Options.use_direct_reads: 0
+2021/03/14-01:17:38.618273 7f39e26a5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:17:38.618274 7f39e26a5a80 Options.create_missing_column_families: 0
+2021/03/14-01:17:38.618274 7f39e26a5a80 Options.db_log_dir:
+2021/03/14-01:17:38.618275 7f39e26a5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:17:38.618276 7f39e26a5a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:17:38.618276 7f39e26a5a80 Options.max_subcompactions: 1
+2021/03/14-01:17:38.618277 7f39e26a5a80 Options.max_background_flushes: -1
+2021/03/14-01:17:38.618277 7f39e26a5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:17:38.618278 7f39e26a5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:17:38.618279 7f39e26a5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:17:38.618279 7f39e26a5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:17:38.618280 7f39e26a5a80 Options.advise_random_on_open: 1
+2021/03/14-01:17:38.618280 7f39e26a5a80 Options.db_write_buffer_size: 0
+2021/03/14-01:17:38.618281 7f39e26a5a80 Options.write_buffer_manager: 0x14f6b90
+2021/03/14-01:17:38.618281 7f39e26a5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:17:38.618282 7f39e26a5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:17:38.618282 7f39e26a5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:17:38.618283 7f39e26a5a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:17:38.618284 7f39e26a5a80 Options.rate_limiter: (nil)
+2021/03/14-01:17:38.618285 7f39e26a5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:17:38.618295 7f39e26a5a80 Options.wal_recovery_mode: 2
+2021/03/14-01:17:38.618295 7f39e26a5a80 Options.enable_thread_tracking: 0
+2021/03/14-01:17:38.618296 7f39e26a5a80 Options.enable_pipelined_write: 0
+2021/03/14-01:17:38.618296 7f39e26a5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:17:38.618297 7f39e26a5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:17:38.618298 7f39e26a5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:17:38.618298 7f39e26a5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:17:38.618299 7f39e26a5a80 Options.row_cache: None
+2021/03/14-01:17:38.618299 7f39e26a5a80 Options.wal_filter: None
+2021/03/14-01:17:38.618300 7f39e26a5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:17:38.618301 7f39e26a5a80 Options.allow_ingest_behind: 0
+2021/03/14-01:17:38.618301 7f39e26a5a80 Options.preserve_deletes: 0
+2021/03/14-01:17:38.618302 7f39e26a5a80 Options.two_write_queues: 0
+2021/03/14-01:17:38.618302 7f39e26a5a80 Options.manual_wal_flush: 0
+2021/03/14-01:17:38.618303 7f39e26a5a80 Options.max_background_jobs: 16
+2021/03/14-01:17:38.618304 7f39e26a5a80 Options.max_background_compactions: -1
+2021/03/14-01:17:38.618304 7f39e26a5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:17:38.618305 7f39e26a5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:17:38.618306 7f39e26a5a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:17:38.618306 7f39e26a5a80 Options.max_total_wal_size: 0
+2021/03/14-01:17:38.618307 7f39e26a5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:17:38.618307 7f39e26a5a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:17:38.618308 7f39e26a5a80 Options.max_open_files: -1
+2021/03/14-01:17:38.618308 7f39e26a5a80 Options.bytes_per_sync: 0
+2021/03/14-01:17:38.618309 7f39e26a5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:17:38.618309 7f39e26a5a80 Options.compaction_readahead_size: 0
+2021/03/14-01:17:38.618310 7f39e26a5a80 Compression algorithms supported:
+2021/03/14-01:17:38.618311 7f39e26a5a80 Snappy supported: 1
+2021/03/14-01:17:38.618311 7f39e26a5a80 Zlib supported: 1
+2021/03/14-01:17:38.618312 7f39e26a5a80 Bzip supported: 1
+2021/03/14-01:17:38.618312 7f39e26a5a80 LZ4 supported: 1
+2021/03/14-01:17:38.618313 7f39e26a5a80 ZSTDNotFinal supported: 1
+2021/03/14-01:17:38.618317 7f39e26a5a80 ZSTD supported: 1
+2021/03/14-01:17:38.618320 7f39e26a5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:17:38.618322 7f39e26a5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:17:38.618410 7f39e26a5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:17:38.618463 7f39e26a5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:17:38.618465 7f39e26a5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:17:38.618465 7f39e26a5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:17:38.618466 7f39e26a5a80 Options.compaction_filter: None
+2021/03/14-01:17:38.618466 7f39e26a5a80 Options.compaction_filter_factory: None
+2021/03/14-01:17:38.618467 7f39e26a5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:17:38.618468 7f39e26a5a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:17:38.618482 7f39e26a5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1506520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x14ebc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:17:38.618483 7f39e26a5a80 Options.write_buffer_size: 134217728
+2021/03/14-01:17:38.618484 7f39e26a5a80 Options.max_write_buffer_number: 6
+2021/03/14-01:17:38.618484 7f39e26a5a80 Options.compression[0]: NoCompression
+2021/03/14-01:17:38.618485 7f39e26a5a80 Options.compression[1]: NoCompression
+2021/03/14-01:17:38.618486 7f39e26a5a80 Options.compression[2]: Snappy
+2021/03/14-01:17:38.618486 7f39e26a5a80 Options.compression[3]: Snappy
+2021/03/14-01:17:38.618487 7f39e26a5a80 Options.compression[4]: Snappy
+2021/03/14-01:17:38.618487 7f39e26a5a80 Options.compression[5]: Snappy
+2021/03/14-01:17:38.618488 7f39e26a5a80 Options.compression[6]: Snappy
+2021/03/14-01:17:38.618489 7f39e26a5a80 Options.bottommost_compression: Disabled
+2021/03/14-01:17:38.618489 7f39e26a5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:17:38.618490 7f39e26a5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:17:38.618490 7f39e26a5a80 Options.num_levels: 7
+2021/03/14-01:17:38.618491 7f39e26a5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:17:38.618492 7f39e26a5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:17:38.618492 7f39e26a5a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:17:38.618493 7f39e26a5a80 Options.compression_opts.level: -1
+2021/03/14-01:17:38.618493 7f39e26a5a80 Options.compression_opts.strategy: 0
+2021/03/14-01:17:38.618494 7f39e26a5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:17:38.618495 7f39e26a5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:17:38.618495 7f39e26a5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:17:38.618496 7f39e26a5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:17:38.618496 7f39e26a5a80 Options.target_file_size_base: 67108864
+2021/03/14-01:17:38.618497 7f39e26a5a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:17:38.618498 7f39e26a5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:17:38.618498 7f39e26a5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:17:38.618499 7f39e26a5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:17:38.618500 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:17:38.618508 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:17:38.618509 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:17:38.618509 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:17:38.618510 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:17:38.618510 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:17:38.618511 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:17:38.618511 7f39e26a5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:17:38.618512 7f39e26a5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:17:38.618512 7f39e26a5a80 Options.arena_block_size: 16777216
+2021/03/14-01:17:38.618513 7f39e26a5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:17:38.618514 7f39e26a5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:17:38.618514 7f39e26a5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:17:38.618515 7f39e26a5a80 Options.disable_auto_compactions: 0
+2021/03/14-01:17:38.618516 7f39e26a5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:17:38.618517 7f39e26a5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:17:38.618518 7f39e26a5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:17:38.618518 7f39e26a5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:17:38.618519 7f39e26a5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:17:38.618519 7f39e26a5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:17:38.618520 7f39e26a5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:17:38.618521 7f39e26a5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:17:38.618521 7f39e26a5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:17:38.618522 7f39e26a5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:17:38.618522 7f39e26a5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:17:38.618523 7f39e26a5a80 Options.table_properties_collectors:
+2021/03/14-01:17:38.618524 7f39e26a5a80 Options.inplace_update_support: 0
+2021/03/14-01:17:38.618524 7f39e26a5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:17:38.618525 7f39e26a5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:17:38.618526 7f39e26a5a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:17:38.618526 7f39e26a5a80 Options.bloom_locality: 0
+2021/03/14-01:17:38.618527 7f39e26a5a80 Options.max_successive_merges: 0
+2021/03/14-01:17:38.618527 7f39e26a5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:17:38.618528 7f39e26a5a80 Options.paranoid_file_checks: 0
+2021/03/14-01:17:38.618528 7f39e26a5a80 Options.force_consistency_checks: 0
+2021/03/14-01:17:38.618529 7f39e26a5a80 Options.report_bg_io_stats: 0
+2021/03/14-01:17:38.618909 7f39e26a5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:17:38.618911 7f39e26a5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:17:38.619022 7f39e26a5a80 EVENT_LOG_v1 {"time_micros": 1615681058619012, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:17:38.619027 7f39e26a5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:17:39.303952 7f39e26a5a80 EVENT_LOG_v1 {"time_micros": 1615681059303948, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681060000437 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681060000437
new file mode 100644
index 0000000..002955c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681060000437
@@ -0,0 +1,186 @@
+2021/03/14-01:17:39.316484 7f39e26a5a80 RocksDB version: 5.11.3
+2021/03/14-01:17:39.316540 7f39e26a5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:17:39.316542 7f39e26a5a80 Compile date Mar 13 2021
+2021/03/14-01:17:39.316546 7f39e26a5a80 DB SUMMARY
+2021/03/14-01:17:39.316649 7f39e26a5a80 CURRENT file: CURRENT
+2021/03/14-01:17:39.316650 7f39e26a5a80 IDENTITY file: IDENTITY
+2021/03/14-01:17:39.316660 7f39e26a5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:17:39.316661 7f39e26a5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:17:39.316662 7f39e26a5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:17:39.316668 7f39e26a5a80 Options.error_if_exists: 0
+2021/03/14-01:17:39.316669 7f39e26a5a80 Options.create_if_missing: 1
+2021/03/14-01:17:39.316669 7f39e26a5a80 Options.paranoid_checks: 1
+2021/03/14-01:17:39.316670 7f39e26a5a80 Options.env: 0x7f39e305f080
+2021/03/14-01:17:39.316670 7f39e26a5a80 Options.info_log: 0x150eca0
+2021/03/14-01:17:39.316671 7f39e26a5a80 Options.max_file_opening_threads: 16
+2021/03/14-01:17:39.316672 7f39e26a5a80 Options.statistics: (nil)
+2021/03/14-01:17:39.316672 7f39e26a5a80 Options.use_fsync: 0
+2021/03/14-01:17:39.316673 7f39e26a5a80 Options.max_log_file_size: 0
+2021/03/14-01:17:39.316674 7f39e26a5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:17:39.316674 7f39e26a5a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:17:39.316675 7f39e26a5a80 Options.keep_log_file_num: 1000
+2021/03/14-01:17:39.316675 7f39e26a5a80 Options.recycle_log_file_num: 0
+2021/03/14-01:17:39.316676 7f39e26a5a80 Options.allow_fallocate: 1
+2021/03/14-01:17:39.316677 7f39e26a5a80 Options.allow_mmap_reads: 0
+2021/03/14-01:17:39.316677 7f39e26a5a80 Options.allow_mmap_writes: 0
+2021/03/14-01:17:39.316678 7f39e26a5a80 Options.use_direct_reads: 0
+2021/03/14-01:17:39.316678 7f39e26a5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:17:39.316679 7f39e26a5a80 Options.create_missing_column_families: 0
+2021/03/14-01:17:39.316679 7f39e26a5a80 Options.db_log_dir:
+2021/03/14-01:17:39.316680 7f39e26a5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:17:39.316680 7f39e26a5a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:17:39.316681 7f39e26a5a80 Options.max_subcompactions: 1
+2021/03/14-01:17:39.316682 7f39e26a5a80 Options.max_background_flushes: -1
+2021/03/14-01:17:39.316682 7f39e26a5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:17:39.316683 7f39e26a5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:17:39.316683 7f39e26a5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:17:39.316684 7f39e26a5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:17:39.316684 7f39e26a5a80 Options.advise_random_on_open: 1
+2021/03/14-01:17:39.316685 7f39e26a5a80 Options.db_write_buffer_size: 0
+2021/03/14-01:17:39.316686 7f39e26a5a80 Options.write_buffer_manager: 0x14f6b90
+2021/03/14-01:17:39.316686 7f39e26a5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:17:39.316687 7f39e26a5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:17:39.316687 7f39e26a5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:17:39.316688 7f39e26a5a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:17:39.316688 7f39e26a5a80 Options.rate_limiter: (nil)
+2021/03/14-01:17:39.316690 7f39e26a5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:17:39.316697 7f39e26a5a80 Options.wal_recovery_mode: 2
+2021/03/14-01:17:39.316698 7f39e26a5a80 Options.enable_thread_tracking: 0
+2021/03/14-01:17:39.316699 7f39e26a5a80 Options.enable_pipelined_write: 0
+2021/03/14-01:17:39.316699 7f39e26a5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:17:39.316700 7f39e26a5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:17:39.316700 7f39e26a5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:17:39.316701 7f39e26a5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:17:39.316702 7f39e26a5a80 Options.row_cache: None
+2021/03/14-01:17:39.316702 7f39e26a5a80 Options.wal_filter: None
+2021/03/14-01:17:39.316703 7f39e26a5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:17:39.316703 7f39e26a5a80 Options.allow_ingest_behind: 0
+2021/03/14-01:17:39.316704 7f39e26a5a80 Options.preserve_deletes: 0
+2021/03/14-01:17:39.316704 7f39e26a5a80 Options.two_write_queues: 0
+2021/03/14-01:17:39.316705 7f39e26a5a80 Options.manual_wal_flush: 0
+2021/03/14-01:17:39.316706 7f39e26a5a80 Options.max_background_jobs: 16
+2021/03/14-01:17:39.316707 7f39e26a5a80 Options.max_background_compactions: -1
+2021/03/14-01:17:39.316707 7f39e26a5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:17:39.316708 7f39e26a5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:17:39.316708 7f39e26a5a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:17:39.316709 7f39e26a5a80 Options.max_total_wal_size: 0
+2021/03/14-01:17:39.316709 7f39e26a5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:17:39.316710 7f39e26a5a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:17:39.316711 7f39e26a5a80 Options.max_open_files: -1
+2021/03/14-01:17:39.316711 7f39e26a5a80 Options.bytes_per_sync: 0
+2021/03/14-01:17:39.316712 7f39e26a5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:17:39.316712 7f39e26a5a80 Options.compaction_readahead_size: 0
+2021/03/14-01:17:39.316713 7f39e26a5a80 Compression algorithms supported:
+2021/03/14-01:17:39.316713 7f39e26a5a80 Snappy supported: 1
+2021/03/14-01:17:39.316714 7f39e26a5a80 Zlib supported: 1
+2021/03/14-01:17:39.316715 7f39e26a5a80 Bzip supported: 1
+2021/03/14-01:17:39.316715 7f39e26a5a80 LZ4 supported: 1
+2021/03/14-01:17:39.316716 7f39e26a5a80 ZSTDNotFinal supported: 1
+2021/03/14-01:17:39.316720 7f39e26a5a80 ZSTD supported: 1
+2021/03/14-01:17:39.316723 7f39e26a5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:17:39.316724 7f39e26a5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:17:39.316810 7f39e26a5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:17:39.316863 7f39e26a5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:17:39.316865 7f39e26a5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:17:39.316865 7f39e26a5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:17:39.316866 7f39e26a5a80 Options.compaction_filter: None
+2021/03/14-01:17:39.316867 7f39e26a5a80 Options.compaction_filter_factory: None
+2021/03/14-01:17:39.316867 7f39e26a5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:17:39.316868 7f39e26a5a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:17:39.316882 7f39e26a5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1506520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x14ebc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:17:39.316883 7f39e26a5a80 Options.write_buffer_size: 134217728
+2021/03/14-01:17:39.316883 7f39e26a5a80 Options.max_write_buffer_number: 6
+2021/03/14-01:17:39.316884 7f39e26a5a80 Options.compression[0]: NoCompression
+2021/03/14-01:17:39.316885 7f39e26a5a80 Options.compression[1]: NoCompression
+2021/03/14-01:17:39.316886 7f39e26a5a80 Options.compression[2]: Snappy
+2021/03/14-01:17:39.316886 7f39e26a5a80 Options.compression[3]: Snappy
+2021/03/14-01:17:39.316887 7f39e26a5a80 Options.compression[4]: Snappy
+2021/03/14-01:17:39.316887 7f39e26a5a80 Options.compression[5]: Snappy
+2021/03/14-01:17:39.316888 7f39e26a5a80 Options.compression[6]: Snappy
+2021/03/14-01:17:39.316888 7f39e26a5a80 Options.bottommost_compression: Disabled
+2021/03/14-01:17:39.316889 7f39e26a5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:17:39.316890 7f39e26a5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:17:39.316890 7f39e26a5a80 Options.num_levels: 7
+2021/03/14-01:17:39.316891 7f39e26a5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:17:39.316891 7f39e26a5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:17:39.316892 7f39e26a5a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:17:39.316893 7f39e26a5a80 Options.compression_opts.level: -1
+2021/03/14-01:17:39.316893 7f39e26a5a80 Options.compression_opts.strategy: 0
+2021/03/14-01:17:39.316894 7f39e26a5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:17:39.316894 7f39e26a5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:17:39.316895 7f39e26a5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:17:39.316895 7f39e26a5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:17:39.316896 7f39e26a5a80 Options.target_file_size_base: 67108864
+2021/03/14-01:17:39.316897 7f39e26a5a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:17:39.316897 7f39e26a5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:17:39.316898 7f39e26a5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:17:39.316898 7f39e26a5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:17:39.316900 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:17:39.316907 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:17:39.316908 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:17:39.316909 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:17:39.316909 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:17:39.316910 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:17:39.316910 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:17:39.316911 7f39e26a5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:17:39.316911 7f39e26a5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:17:39.316912 7f39e26a5a80 Options.arena_block_size: 16777216
+2021/03/14-01:17:39.316913 7f39e26a5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:17:39.316913 7f39e26a5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:17:39.316914 7f39e26a5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:17:39.316914 7f39e26a5a80 Options.disable_auto_compactions: 0
+2021/03/14-01:17:39.316916 7f39e26a5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:17:39.316917 7f39e26a5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:17:39.316917 7f39e26a5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:17:39.316918 7f39e26a5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:17:39.316918 7f39e26a5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:17:39.316919 7f39e26a5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:17:39.316919 7f39e26a5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:17:39.316920 7f39e26a5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:17:39.316921 7f39e26a5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:17:39.316921 7f39e26a5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:17:39.316922 7f39e26a5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:17:39.316923 7f39e26a5a80 Options.table_properties_collectors:
+2021/03/14-01:17:39.316923 7f39e26a5a80 Options.inplace_update_support: 0
+2021/03/14-01:17:39.316924 7f39e26a5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:17:39.316924 7f39e26a5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:17:39.316925 7f39e26a5a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:17:39.316926 7f39e26a5a80 Options.bloom_locality: 0
+2021/03/14-01:17:39.316926 7f39e26a5a80 Options.max_successive_merges: 0
+2021/03/14-01:17:39.316927 7f39e26a5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:17:39.316927 7f39e26a5a80 Options.paranoid_file_checks: 0
+2021/03/14-01:17:39.316928 7f39e26a5a80 Options.force_consistency_checks: 0
+2021/03/14-01:17:39.316928 7f39e26a5a80 Options.report_bg_io_stats: 0
+2021/03/14-01:17:39.317314 7f39e26a5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:17:39.317317 7f39e26a5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:17:39.317424 7f39e26a5a80 EVENT_LOG_v1 {"time_micros": 1615681059317413, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:17:39.317429 7f39e26a5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:17:39.987898 7f39e26a5a80 EVENT_LOG_v1 {"time_micros": 1615681059987895, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681102402208 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681102402208
new file mode 100644
index 0000000..b18dca7
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681102402208
@@ -0,0 +1,186 @@
+2021/03/14-01:17:40.000805 7f39e26a5a80 RocksDB version: 5.11.3
+2021/03/14-01:17:40.000858 7f39e26a5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:17:40.000860 7f39e26a5a80 Compile date Mar 13 2021
+2021/03/14-01:17:40.000864 7f39e26a5a80 DB SUMMARY
+2021/03/14-01:17:40.000966 7f39e26a5a80 CURRENT file: CURRENT
+2021/03/14-01:17:40.000967 7f39e26a5a80 IDENTITY file: IDENTITY
+2021/03/14-01:17:40.000977 7f39e26a5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:17:40.000978 7f39e26a5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:17:40.000979 7f39e26a5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:17:40.000985 7f39e26a5a80 Options.error_if_exists: 0
+2021/03/14-01:17:40.000986 7f39e26a5a80 Options.create_if_missing: 1
+2021/03/14-01:17:40.000986 7f39e26a5a80 Options.paranoid_checks: 1
+2021/03/14-01:17:40.000987 7f39e26a5a80 Options.env: 0x7f39e305f080
+2021/03/14-01:17:40.000988 7f39e26a5a80 Options.info_log: 0x150eca0
+2021/03/14-01:17:40.000988 7f39e26a5a80 Options.max_file_opening_threads: 16
+2021/03/14-01:17:40.000989 7f39e26a5a80 Options.statistics: (nil)
+2021/03/14-01:17:40.000990 7f39e26a5a80 Options.use_fsync: 0
+2021/03/14-01:17:40.000990 7f39e26a5a80 Options.max_log_file_size: 0
+2021/03/14-01:17:40.000991 7f39e26a5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:17:40.000991 7f39e26a5a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:17:40.000992 7f39e26a5a80 Options.keep_log_file_num: 1000
+2021/03/14-01:17:40.000993 7f39e26a5a80 Options.recycle_log_file_num: 0
+2021/03/14-01:17:40.000993 7f39e26a5a80 Options.allow_fallocate: 1
+2021/03/14-01:17:40.000994 7f39e26a5a80 Options.allow_mmap_reads: 0
+2021/03/14-01:17:40.000994 7f39e26a5a80 Options.allow_mmap_writes: 0
+2021/03/14-01:17:40.000995 7f39e26a5a80 Options.use_direct_reads: 0
+2021/03/14-01:17:40.000995 7f39e26a5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:17:40.000996 7f39e26a5a80 Options.create_missing_column_families: 0
+2021/03/14-01:17:40.000997 7f39e26a5a80 Options.db_log_dir:
+2021/03/14-01:17:40.000997 7f39e26a5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:17:40.000998 7f39e26a5a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:17:40.000998 7f39e26a5a80 Options.max_subcompactions: 1
+2021/03/14-01:17:40.000999 7f39e26a5a80 Options.max_background_flushes: -1
+2021/03/14-01:17:40.001000 7f39e26a5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:17:40.001000 7f39e26a5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:17:40.001001 7f39e26a5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:17:40.001001 7f39e26a5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:17:40.001002 7f39e26a5a80 Options.advise_random_on_open: 1
+2021/03/14-01:17:40.001003 7f39e26a5a80 Options.db_write_buffer_size: 0
+2021/03/14-01:17:40.001003 7f39e26a5a80 Options.write_buffer_manager: 0x14f6b90
+2021/03/14-01:17:40.001004 7f39e26a5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:17:40.001004 7f39e26a5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:17:40.001005 7f39e26a5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:17:40.001005 7f39e26a5a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:17:40.001006 7f39e26a5a80 Options.rate_limiter: (nil)
+2021/03/14-01:17:40.001007 7f39e26a5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:17:40.001015 7f39e26a5a80 Options.wal_recovery_mode: 2
+2021/03/14-01:17:40.001016 7f39e26a5a80 Options.enable_thread_tracking: 0
+2021/03/14-01:17:40.001016 7f39e26a5a80 Options.enable_pipelined_write: 0
+2021/03/14-01:17:40.001017 7f39e26a5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:17:40.001017 7f39e26a5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:17:40.001018 7f39e26a5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:17:40.001019 7f39e26a5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:17:40.001019 7f39e26a5a80 Options.row_cache: None
+2021/03/14-01:17:40.001020 7f39e26a5a80 Options.wal_filter: None
+2021/03/14-01:17:40.001020 7f39e26a5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:17:40.001021 7f39e26a5a80 Options.allow_ingest_behind: 0
+2021/03/14-01:17:40.001021 7f39e26a5a80 Options.preserve_deletes: 0
+2021/03/14-01:17:40.001022 7f39e26a5a80 Options.two_write_queues: 0
+2021/03/14-01:17:40.001023 7f39e26a5a80 Options.manual_wal_flush: 0
+2021/03/14-01:17:40.001024 7f39e26a5a80 Options.max_background_jobs: 16
+2021/03/14-01:17:40.001024 7f39e26a5a80 Options.max_background_compactions: -1
+2021/03/14-01:17:40.001025 7f39e26a5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:17:40.001026 7f39e26a5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:17:40.001026 7f39e26a5a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:17:40.001027 7f39e26a5a80 Options.max_total_wal_size: 0
+2021/03/14-01:17:40.001027 7f39e26a5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:17:40.001028 7f39e26a5a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:17:40.001029 7f39e26a5a80 Options.max_open_files: -1
+2021/03/14-01:17:40.001029 7f39e26a5a80 Options.bytes_per_sync: 0
+2021/03/14-01:17:40.001030 7f39e26a5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:17:40.001030 7f39e26a5a80 Options.compaction_readahead_size: 0
+2021/03/14-01:17:40.001031 7f39e26a5a80 Compression algorithms supported:
+2021/03/14-01:17:40.001031 7f39e26a5a80 Snappy supported: 1
+2021/03/14-01:17:40.001032 7f39e26a5a80 Zlib supported: 1
+2021/03/14-01:17:40.001033 7f39e26a5a80 Bzip supported: 1
+2021/03/14-01:17:40.001033 7f39e26a5a80 LZ4 supported: 1
+2021/03/14-01:17:40.001034 7f39e26a5a80 ZSTDNotFinal supported: 1
+2021/03/14-01:17:40.001037 7f39e26a5a80 ZSTD supported: 1
+2021/03/14-01:17:40.001041 7f39e26a5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:17:40.001042 7f39e26a5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:17:40.001128 7f39e26a5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:17:40.001181 7f39e26a5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:17:40.001183 7f39e26a5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:17:40.001184 7f39e26a5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:17:40.001185 7f39e26a5a80 Options.compaction_filter: None
+2021/03/14-01:17:40.001185 7f39e26a5a80 Options.compaction_filter_factory: None
+2021/03/14-01:17:40.001186 7f39e26a5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:17:40.001187 7f39e26a5a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:17:40.001200 7f39e26a5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1506520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x14ebc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:17:40.001201 7f39e26a5a80 Options.write_buffer_size: 134217728
+2021/03/14-01:17:40.001201 7f39e26a5a80 Options.max_write_buffer_number: 6
+2021/03/14-01:17:40.001202 7f39e26a5a80 Options.compression[0]: NoCompression
+2021/03/14-01:17:40.001203 7f39e26a5a80 Options.compression[1]: NoCompression
+2021/03/14-01:17:40.001203 7f39e26a5a80 Options.compression[2]: Snappy
+2021/03/14-01:17:40.001204 7f39e26a5a80 Options.compression[3]: Snappy
+2021/03/14-01:17:40.001205 7f39e26a5a80 Options.compression[4]: Snappy
+2021/03/14-01:17:40.001205 7f39e26a5a80 Options.compression[5]: Snappy
+2021/03/14-01:17:40.001206 7f39e26a5a80 Options.compression[6]: Snappy
+2021/03/14-01:17:40.001206 7f39e26a5a80 Options.bottommost_compression: Disabled
+2021/03/14-01:17:40.001207 7f39e26a5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:17:40.001208 7f39e26a5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:17:40.001208 7f39e26a5a80 Options.num_levels: 7
+2021/03/14-01:17:40.001209 7f39e26a5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:17:40.001209 7f39e26a5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:17:40.001210 7f39e26a5a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:17:40.001211 7f39e26a5a80 Options.compression_opts.level: -1
+2021/03/14-01:17:40.001211 7f39e26a5a80 Options.compression_opts.strategy: 0
+2021/03/14-01:17:40.001212 7f39e26a5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:17:40.001212 7f39e26a5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:17:40.001213 7f39e26a5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:17:40.001214 7f39e26a5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:17:40.001214 7f39e26a5a80 Options.target_file_size_base: 67108864
+2021/03/14-01:17:40.001215 7f39e26a5a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:17:40.001215 7f39e26a5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:17:40.001216 7f39e26a5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:17:40.001217 7f39e26a5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:17:40.001218 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:17:40.001226 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:17:40.001227 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:17:40.001227 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:17:40.001228 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:17:40.001228 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:17:40.001229 7f39e26a5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:17:40.001229 7f39e26a5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:17:40.001230 7f39e26a5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:17:40.001231 7f39e26a5a80 Options.arena_block_size: 16777216
+2021/03/14-01:17:40.001231 7f39e26a5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:17:40.001232 7f39e26a5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:17:40.001233 7f39e26a5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:17:40.001233 7f39e26a5a80 Options.disable_auto_compactions: 0
+2021/03/14-01:17:40.001235 7f39e26a5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:17:40.001235 7f39e26a5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:17:40.001236 7f39e26a5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:17:40.001237 7f39e26a5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:17:40.001243 7f39e26a5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:17:40.001244 7f39e26a5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:17:40.001245 7f39e26a5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:17:40.001246 7f39e26a5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:17:40.001246 7f39e26a5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:17:40.001247 7f39e26a5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:17:40.001247 7f39e26a5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:17:40.001248 7f39e26a5a80 Options.table_properties_collectors:
+2021/03/14-01:17:40.001248 7f39e26a5a80 Options.inplace_update_support: 0
+2021/03/14-01:17:40.001249 7f39e26a5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:17:40.001250 7f39e26a5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:17:40.001250 7f39e26a5a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:17:40.001251 7f39e26a5a80 Options.bloom_locality: 0
+2021/03/14-01:17:40.001252 7f39e26a5a80 Options.max_successive_merges: 0
+2021/03/14-01:17:40.001252 7f39e26a5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:17:40.001253 7f39e26a5a80 Options.paranoid_file_checks: 0
+2021/03/14-01:17:40.001253 7f39e26a5a80 Options.force_consistency_checks: 0
+2021/03/14-01:17:40.001254 7f39e26a5a80 Options.report_bg_io_stats: 0
+2021/03/14-01:17:40.001648 7f39e26a5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:17:40.001651 7f39e26a5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:17:40.001763 7f39e26a5a80 EVENT_LOG_v1 {"time_micros": 1615681060001752, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:17:40.001768 7f39e26a5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:17:40.672745 7f39e26a5a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681103087160 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681103087160
new file mode 100644
index 0000000..637fd47
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681103087160
@@ -0,0 +1,186 @@
+2021/03/14-01:18:22.402706 7fa79a385a80 RocksDB version: 5.11.3
+2021/03/14-01:18:22.402799 7fa79a385a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:18:22.402801 7fa79a385a80 Compile date Mar 13 2021
+2021/03/14-01:18:22.402807 7fa79a385a80 DB SUMMARY
+2021/03/14-01:18:22.402935 7fa79a385a80 CURRENT file: CURRENT
+2021/03/14-01:18:22.402936 7fa79a385a80 IDENTITY file: IDENTITY
+2021/03/14-01:18:22.402948 7fa79a385a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:18:22.402949 7fa79a385a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:18:22.402950 7fa79a385a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:18:22.402957 7fa79a385a80 Options.error_if_exists: 0
+2021/03/14-01:18:22.402958 7fa79a385a80 Options.create_if_missing: 1
+2021/03/14-01:18:22.402959 7fa79a385a80 Options.paranoid_checks: 1
+2021/03/14-01:18:22.402960 7fa79a385a80 Options.env: 0x7fa79ad3f080
+2021/03/14-01:18:22.402960 7fa79a385a80 Options.info_log: 0x2eaeca0
+2021/03/14-01:18:22.402961 7fa79a385a80 Options.max_file_opening_threads: 16
+2021/03/14-01:18:22.402962 7fa79a385a80 Options.statistics: (nil)
+2021/03/14-01:18:22.402963 7fa79a385a80 Options.use_fsync: 0
+2021/03/14-01:18:22.402963 7fa79a385a80 Options.max_log_file_size: 0
+2021/03/14-01:18:22.402964 7fa79a385a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:18:22.402965 7fa79a385a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:18:22.402965 7fa79a385a80 Options.keep_log_file_num: 1000
+2021/03/14-01:18:22.402966 7fa79a385a80 Options.recycle_log_file_num: 0
+2021/03/14-01:18:22.402967 7fa79a385a80 Options.allow_fallocate: 1
+2021/03/14-01:18:22.402968 7fa79a385a80 Options.allow_mmap_reads: 0
+2021/03/14-01:18:22.402968 7fa79a385a80 Options.allow_mmap_writes: 0
+2021/03/14-01:18:22.402969 7fa79a385a80 Options.use_direct_reads: 0
+2021/03/14-01:18:22.402969 7fa79a385a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:18:22.402970 7fa79a385a80 Options.create_missing_column_families: 0
+2021/03/14-01:18:22.402971 7fa79a385a80 Options.db_log_dir:
+2021/03/14-01:18:22.402971 7fa79a385a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:18:22.402972 7fa79a385a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:18:22.402973 7fa79a385a80 Options.max_subcompactions: 1
+2021/03/14-01:18:22.402974 7fa79a385a80 Options.max_background_flushes: -1
+2021/03/14-01:18:22.402974 7fa79a385a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:18:22.402975 7fa79a385a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:18:22.402976 7fa79a385a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:18:22.402976 7fa79a385a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:18:22.402977 7fa79a385a80 Options.advise_random_on_open: 1
+2021/03/14-01:18:22.402978 7fa79a385a80 Options.db_write_buffer_size: 0
+2021/03/14-01:18:22.402978 7fa79a385a80 Options.write_buffer_manager: 0x2e96b90
+2021/03/14-01:18:22.402979 7fa79a385a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:18:22.402980 7fa79a385a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:18:22.402980 7fa79a385a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:18:22.402981 7fa79a385a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:18:22.402982 7fa79a385a80 Options.rate_limiter: (nil)
+2021/03/14-01:18:22.402983 7fa79a385a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:18:22.402994 7fa79a385a80 Options.wal_recovery_mode: 2
+2021/03/14-01:18:22.402995 7fa79a385a80 Options.enable_thread_tracking: 0
+2021/03/14-01:18:22.402995 7fa79a385a80 Options.enable_pipelined_write: 0
+2021/03/14-01:18:22.402996 7fa79a385a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:18:22.402997 7fa79a385a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:18:22.402997 7fa79a385a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:18:22.402998 7fa79a385a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:18:22.402999 7fa79a385a80 Options.row_cache: None
+2021/03/14-01:18:22.402999 7fa79a385a80 Options.wal_filter: None
+2021/03/14-01:18:22.403000 7fa79a385a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:18:22.403001 7fa79a385a80 Options.allow_ingest_behind: 0
+2021/03/14-01:18:22.403001 7fa79a385a80 Options.preserve_deletes: 0
+2021/03/14-01:18:22.403002 7fa79a385a80 Options.two_write_queues: 0
+2021/03/14-01:18:22.403003 7fa79a385a80 Options.manual_wal_flush: 0
+2021/03/14-01:18:22.403004 7fa79a385a80 Options.max_background_jobs: 16
+2021/03/14-01:18:22.403005 7fa79a385a80 Options.max_background_compactions: -1
+2021/03/14-01:18:22.403005 7fa79a385a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:18:22.403006 7fa79a385a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:18:22.403007 7fa79a385a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:18:22.403007 7fa79a385a80 Options.max_total_wal_size: 0
+2021/03/14-01:18:22.403008 7fa79a385a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:18:22.403009 7fa79a385a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:18:22.403010 7fa79a385a80 Options.max_open_files: -1
+2021/03/14-01:18:22.403010 7fa79a385a80 Options.bytes_per_sync: 0
+2021/03/14-01:18:22.403011 7fa79a385a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:18:22.403011 7fa79a385a80 Options.compaction_readahead_size: 0
+2021/03/14-01:18:22.403012 7fa79a385a80 Compression algorithms supported:
+2021/03/14-01:18:22.403013 7fa79a385a80 Snappy supported: 1
+2021/03/14-01:18:22.403014 7fa79a385a80 Zlib supported: 1
+2021/03/14-01:18:22.403014 7fa79a385a80 Bzip supported: 1
+2021/03/14-01:18:22.403015 7fa79a385a80 LZ4 supported: 1
+2021/03/14-01:18:22.403016 7fa79a385a80 ZSTDNotFinal supported: 1
+2021/03/14-01:18:22.403021 7fa79a385a80 ZSTD supported: 1
+2021/03/14-01:18:22.403026 7fa79a385a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:18:22.403027 7fa79a385a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:18:22.403170 7fa79a385a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:18:22.403250 7fa79a385a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:18:22.403252 7fa79a385a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:18:22.403253 7fa79a385a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:18:22.403254 7fa79a385a80 Options.compaction_filter: None
+2021/03/14-01:18:22.403255 7fa79a385a80 Options.compaction_filter_factory: None
+2021/03/14-01:18:22.403255 7fa79a385a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:18:22.403257 7fa79a385a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:18:22.403275 7fa79a385a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2ea6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2e8bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:18:22.403276 7fa79a385a80 Options.write_buffer_size: 134217728
+2021/03/14-01:18:22.403276 7fa79a385a80 Options.max_write_buffer_number: 6
+2021/03/14-01:18:22.403278 7fa79a385a80 Options.compression[0]: NoCompression
+2021/03/14-01:18:22.403278 7fa79a385a80 Options.compression[1]: NoCompression
+2021/03/14-01:18:22.403279 7fa79a385a80 Options.compression[2]: Snappy
+2021/03/14-01:18:22.403280 7fa79a385a80 Options.compression[3]: Snappy
+2021/03/14-01:18:22.403281 7fa79a385a80 Options.compression[4]: Snappy
+2021/03/14-01:18:22.403281 7fa79a385a80 Options.compression[5]: Snappy
+2021/03/14-01:18:22.403282 7fa79a385a80 Options.compression[6]: Snappy
+2021/03/14-01:18:22.403283 7fa79a385a80 Options.bottommost_compression: Disabled
+2021/03/14-01:18:22.403284 7fa79a385a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:18:22.403284 7fa79a385a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:18:22.403285 7fa79a385a80 Options.num_levels: 7
+2021/03/14-01:18:22.403286 7fa79a385a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:18:22.403286 7fa79a385a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:18:22.403287 7fa79a385a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:18:22.403288 7fa79a385a80 Options.compression_opts.level: -1
+2021/03/14-01:18:22.403288 7fa79a385a80 Options.compression_opts.strategy: 0
+2021/03/14-01:18:22.403289 7fa79a385a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:18:22.403290 7fa79a385a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:18:22.403290 7fa79a385a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:18:22.403291 7fa79a385a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:18:22.403292 7fa79a385a80 Options.target_file_size_base: 67108864
+2021/03/14-01:18:22.403293 7fa79a385a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:18:22.403293 7fa79a385a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:18:22.403294 7fa79a385a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:18:22.403295 7fa79a385a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:18:22.403297 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:18:22.403307 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:18:22.403308 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:18:22.403309 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:18:22.403310 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:18:22.403310 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:18:22.403311 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:18:22.403312 7fa79a385a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:18:22.403312 7fa79a385a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:18:22.403313 7fa79a385a80 Options.arena_block_size: 16777216
+2021/03/14-01:18:22.403314 7fa79a385a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:18:22.403314 7fa79a385a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:18:22.403315 7fa79a385a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:18:22.403316 7fa79a385a80 Options.disable_auto_compactions: 0
+2021/03/14-01:18:22.403317 7fa79a385a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:18:22.403318 7fa79a385a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:18:22.403319 7fa79a385a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:18:22.403320 7fa79a385a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:18:22.403320 7fa79a385a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:18:22.403321 7fa79a385a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:18:22.403322 7fa79a385a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:18:22.403323 7fa79a385a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:18:22.403324 7fa79a385a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:18:22.403324 7fa79a385a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:18:22.403325 7fa79a385a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:18:22.403326 7fa79a385a80 Options.table_properties_collectors:
+2021/03/14-01:18:22.403326 7fa79a385a80 Options.inplace_update_support: 0
+2021/03/14-01:18:22.403327 7fa79a385a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:18:22.403328 7fa79a385a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:18:22.403329 7fa79a385a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:18:22.403329 7fa79a385a80 Options.bloom_locality: 0
+2021/03/14-01:18:22.403330 7fa79a385a80 Options.max_successive_merges: 0
+2021/03/14-01:18:22.403331 7fa79a385a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:18:22.403331 7fa79a385a80 Options.paranoid_file_checks: 0
+2021/03/14-01:18:22.403332 7fa79a385a80 Options.force_consistency_checks: 0
+2021/03/14-01:18:22.403333 7fa79a385a80 Options.report_bg_io_stats: 0
+2021/03/14-01:18:22.403873 7fa79a385a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:18:22.403877 7fa79a385a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:18:22.404022 7fa79a385a80 EVENT_LOG_v1 {"time_micros": 1615681102404006, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:18:22.404029 7fa79a385a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:18:23.075048 7fa79a385a80 EVENT_LOG_v1 {"time_micros": 1615681103075045, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681103759436 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681103759436
new file mode 100644
index 0000000..f411871
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681103759436
@@ -0,0 +1,186 @@
+2021/03/14-01:18:23.087560 7fa79a385a80 RocksDB version: 5.11.3
+2021/03/14-01:18:23.087618 7fa79a385a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:18:23.087619 7fa79a385a80 Compile date Mar 13 2021
+2021/03/14-01:18:23.087624 7fa79a385a80 DB SUMMARY
+2021/03/14-01:18:23.087730 7fa79a385a80 CURRENT file: CURRENT
+2021/03/14-01:18:23.087731 7fa79a385a80 IDENTITY file: IDENTITY
+2021/03/14-01:18:23.087741 7fa79a385a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:18:23.087742 7fa79a385a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:18:23.087743 7fa79a385a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:18:23.087749 7fa79a385a80 Options.error_if_exists: 0
+2021/03/14-01:18:23.087750 7fa79a385a80 Options.create_if_missing: 1
+2021/03/14-01:18:23.087751 7fa79a385a80 Options.paranoid_checks: 1
+2021/03/14-01:18:23.087751 7fa79a385a80 Options.env: 0x7fa79ad3f080
+2021/03/14-01:18:23.087752 7fa79a385a80 Options.info_log: 0x2eaeca0
+2021/03/14-01:18:23.087752 7fa79a385a80 Options.max_file_opening_threads: 16
+2021/03/14-01:18:23.087753 7fa79a385a80 Options.statistics: (nil)
+2021/03/14-01:18:23.087754 7fa79a385a80 Options.use_fsync: 0
+2021/03/14-01:18:23.087754 7fa79a385a80 Options.max_log_file_size: 0
+2021/03/14-01:18:23.087755 7fa79a385a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:18:23.087756 7fa79a385a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:18:23.087756 7fa79a385a80 Options.keep_log_file_num: 1000
+2021/03/14-01:18:23.087757 7fa79a385a80 Options.recycle_log_file_num: 0
+2021/03/14-01:18:23.087757 7fa79a385a80 Options.allow_fallocate: 1
+2021/03/14-01:18:23.087758 7fa79a385a80 Options.allow_mmap_reads: 0
+2021/03/14-01:18:23.087759 7fa79a385a80 Options.allow_mmap_writes: 0
+2021/03/14-01:18:23.087759 7fa79a385a80 Options.use_direct_reads: 0
+2021/03/14-01:18:23.087760 7fa79a385a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:18:23.087760 7fa79a385a80 Options.create_missing_column_families: 0
+2021/03/14-01:18:23.087761 7fa79a385a80 Options.db_log_dir:
+2021/03/14-01:18:23.087761 7fa79a385a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:18:23.087762 7fa79a385a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:18:23.087762 7fa79a385a80 Options.max_subcompactions: 1
+2021/03/14-01:18:23.087763 7fa79a385a80 Options.max_background_flushes: -1
+2021/03/14-01:18:23.087764 7fa79a385a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:18:23.087764 7fa79a385a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:18:23.087765 7fa79a385a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:18:23.087765 7fa79a385a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:18:23.087766 7fa79a385a80 Options.advise_random_on_open: 1
+2021/03/14-01:18:23.087766 7fa79a385a80 Options.db_write_buffer_size: 0
+2021/03/14-01:18:23.087767 7fa79a385a80 Options.write_buffer_manager: 0x2e96b90
+2021/03/14-01:18:23.087768 7fa79a385a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:18:23.087768 7fa79a385a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:18:23.087769 7fa79a385a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:18:23.087769 7fa79a385a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:18:23.087770 7fa79a385a80 Options.rate_limiter: (nil)
+2021/03/14-01:18:23.087771 7fa79a385a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:18:23.087779 7fa79a385a80 Options.wal_recovery_mode: 2
+2021/03/14-01:18:23.087780 7fa79a385a80 Options.enable_thread_tracking: 0
+2021/03/14-01:18:23.087780 7fa79a385a80 Options.enable_pipelined_write: 0
+2021/03/14-01:18:23.087781 7fa79a385a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:18:23.087781 7fa79a385a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:18:23.087782 7fa79a385a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:18:23.087782 7fa79a385a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:18:23.087783 7fa79a385a80 Options.row_cache: None
+2021/03/14-01:18:23.087784 7fa79a385a80 Options.wal_filter: None
+2021/03/14-01:18:23.087784 7fa79a385a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:18:23.087785 7fa79a385a80 Options.allow_ingest_behind: 0
+2021/03/14-01:18:23.087785 7fa79a385a80 Options.preserve_deletes: 0
+2021/03/14-01:18:23.087786 7fa79a385a80 Options.two_write_queues: 0
+2021/03/14-01:18:23.087786 7fa79a385a80 Options.manual_wal_flush: 0
+2021/03/14-01:18:23.087788 7fa79a385a80 Options.max_background_jobs: 16
+2021/03/14-01:18:23.087788 7fa79a385a80 Options.max_background_compactions: -1
+2021/03/14-01:18:23.087789 7fa79a385a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:18:23.087789 7fa79a385a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:18:23.087790 7fa79a385a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:18:23.087791 7fa79a385a80 Options.max_total_wal_size: 0
+2021/03/14-01:18:23.087791 7fa79a385a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:18:23.087792 7fa79a385a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:18:23.087792 7fa79a385a80 Options.max_open_files: -1
+2021/03/14-01:18:23.087793 7fa79a385a80 Options.bytes_per_sync: 0
+2021/03/14-01:18:23.087793 7fa79a385a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:18:23.087794 7fa79a385a80 Options.compaction_readahead_size: 0
+2021/03/14-01:18:23.087794 7fa79a385a80 Compression algorithms supported:
+2021/03/14-01:18:23.087795 7fa79a385a80 Snappy supported: 1
+2021/03/14-01:18:23.087796 7fa79a385a80 Zlib supported: 1
+2021/03/14-01:18:23.087796 7fa79a385a80 Bzip supported: 1
+2021/03/14-01:18:23.087797 7fa79a385a80 LZ4 supported: 1
+2021/03/14-01:18:23.087797 7fa79a385a80 ZSTDNotFinal supported: 1
+2021/03/14-01:18:23.087801 7fa79a385a80 ZSTD supported: 1
+2021/03/14-01:18:23.087804 7fa79a385a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:18:23.087806 7fa79a385a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:18:23.087890 7fa79a385a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:18:23.087945 7fa79a385a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:18:23.087946 7fa79a385a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:18:23.087947 7fa79a385a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:18:23.087948 7fa79a385a80 Options.compaction_filter: None
+2021/03/14-01:18:23.087948 7fa79a385a80 Options.compaction_filter_factory: None
+2021/03/14-01:18:23.087949 7fa79a385a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:18:23.087950 7fa79a385a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:18:23.087964 7fa79a385a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2ea6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2e8bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:18:23.087965 7fa79a385a80 Options.write_buffer_size: 134217728
+2021/03/14-01:18:23.087965 7fa79a385a80 Options.max_write_buffer_number: 6
+2021/03/14-01:18:23.087966 7fa79a385a80 Options.compression[0]: NoCompression
+2021/03/14-01:18:23.087967 7fa79a385a80 Options.compression[1]: NoCompression
+2021/03/14-01:18:23.087968 7fa79a385a80 Options.compression[2]: Snappy
+2021/03/14-01:18:23.087968 7fa79a385a80 Options.compression[3]: Snappy
+2021/03/14-01:18:23.087969 7fa79a385a80 Options.compression[4]: Snappy
+2021/03/14-01:18:23.087969 7fa79a385a80 Options.compression[5]: Snappy
+2021/03/14-01:18:23.087970 7fa79a385a80 Options.compression[6]: Snappy
+2021/03/14-01:18:23.087970 7fa79a385a80 Options.bottommost_compression: Disabled
+2021/03/14-01:18:23.087971 7fa79a385a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:18:23.087972 7fa79a385a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:18:23.087972 7fa79a385a80 Options.num_levels: 7
+2021/03/14-01:18:23.087973 7fa79a385a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:18:23.087974 7fa79a385a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:18:23.087974 7fa79a385a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:18:23.087975 7fa79a385a80 Options.compression_opts.level: -1
+2021/03/14-01:18:23.087975 7fa79a385a80 Options.compression_opts.strategy: 0
+2021/03/14-01:18:23.087976 7fa79a385a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:18:23.087976 7fa79a385a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:18:23.087977 7fa79a385a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:18:23.087978 7fa79a385a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:18:23.087978 7fa79a385a80 Options.target_file_size_base: 67108864
+2021/03/14-01:18:23.087979 7fa79a385a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:18:23.087979 7fa79a385a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:18:23.087980 7fa79a385a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:18:23.087980 7fa79a385a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:18:23.087982 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:18:23.087990 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:18:23.087990 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:18:23.087991 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:18:23.087992 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:18:23.087992 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:18:23.087993 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:18:23.087993 7fa79a385a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:18:23.087994 7fa79a385a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:18:23.087994 7fa79a385a80 Options.arena_block_size: 16777216
+2021/03/14-01:18:23.087995 7fa79a385a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:18:23.087996 7fa79a385a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:18:23.087996 7fa79a385a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:18:23.087997 7fa79a385a80 Options.disable_auto_compactions: 0
+2021/03/14-01:18:23.087998 7fa79a385a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:18:23.087999 7fa79a385a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:18:23.088000 7fa79a385a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:18:23.088000 7fa79a385a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:18:23.088001 7fa79a385a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:18:23.088001 7fa79a385a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:18:23.088002 7fa79a385a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:18:23.088003 7fa79a385a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:18:23.088004 7fa79a385a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:18:23.088004 7fa79a385a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:18:23.088005 7fa79a385a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:18:23.088006 7fa79a385a80 Options.table_properties_collectors:
+2021/03/14-01:18:23.088006 7fa79a385a80 Options.inplace_update_support: 0
+2021/03/14-01:18:23.088007 7fa79a385a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:18:23.088008 7fa79a385a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:18:23.088008 7fa79a385a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:18:23.088009 7fa79a385a80 Options.bloom_locality: 0
+2021/03/14-01:18:23.088010 7fa79a385a80 Options.max_successive_merges: 0
+2021/03/14-01:18:23.088010 7fa79a385a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:18:23.088011 7fa79a385a80 Options.paranoid_file_checks: 0
+2021/03/14-01:18:23.088011 7fa79a385a80 Options.force_consistency_checks: 0
+2021/03/14-01:18:23.088012 7fa79a385a80 Options.report_bg_io_stats: 0
+2021/03/14-01:18:23.088390 7fa79a385a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:18:23.088393 7fa79a385a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:18:23.088506 7fa79a385a80 EVENT_LOG_v1 {"time_micros": 1615681103088495, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:18:23.088511 7fa79a385a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:18:23.747058 7fa79a385a80 EVENT_LOG_v1 {"time_micros": 1615681103747055, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681104427318 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681104427318
new file mode 100644
index 0000000..9912d40
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681104427318
@@ -0,0 +1,186 @@
+2021/03/14-01:18:23.759798 7fa79a385a80 RocksDB version: 5.11.3
+2021/03/14-01:18:23.759852 7fa79a385a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:18:23.759854 7fa79a385a80 Compile date Mar 13 2021
+2021/03/14-01:18:23.759858 7fa79a385a80 DB SUMMARY
+2021/03/14-01:18:23.759962 7fa79a385a80 CURRENT file: CURRENT
+2021/03/14-01:18:23.759963 7fa79a385a80 IDENTITY file: IDENTITY
+2021/03/14-01:18:23.759974 7fa79a385a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:18:23.759975 7fa79a385a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:18:23.759976 7fa79a385a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:18:23.759981 7fa79a385a80 Options.error_if_exists: 0
+2021/03/14-01:18:23.759982 7fa79a385a80 Options.create_if_missing: 1
+2021/03/14-01:18:23.759983 7fa79a385a80 Options.paranoid_checks: 1
+2021/03/14-01:18:23.759983 7fa79a385a80 Options.env: 0x7fa79ad3f080
+2021/03/14-01:18:23.759984 7fa79a385a80 Options.info_log: 0x2eaeca0
+2021/03/14-01:18:23.759985 7fa79a385a80 Options.max_file_opening_threads: 16
+2021/03/14-01:18:23.759985 7fa79a385a80 Options.statistics: (nil)
+2021/03/14-01:18:23.759986 7fa79a385a80 Options.use_fsync: 0
+2021/03/14-01:18:23.759987 7fa79a385a80 Options.max_log_file_size: 0
+2021/03/14-01:18:23.759987 7fa79a385a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:18:23.759988 7fa79a385a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:18:23.759988 7fa79a385a80 Options.keep_log_file_num: 1000
+2021/03/14-01:18:23.759989 7fa79a385a80 Options.recycle_log_file_num: 0
+2021/03/14-01:18:23.759990 7fa79a385a80 Options.allow_fallocate: 1
+2021/03/14-01:18:23.759990 7fa79a385a80 Options.allow_mmap_reads: 0
+2021/03/14-01:18:23.759991 7fa79a385a80 Options.allow_mmap_writes: 0
+2021/03/14-01:18:23.759991 7fa79a385a80 Options.use_direct_reads: 0
+2021/03/14-01:18:23.759992 7fa79a385a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:18:23.759992 7fa79a385a80 Options.create_missing_column_families: 0
+2021/03/14-01:18:23.759993 7fa79a385a80 Options.db_log_dir:
+2021/03/14-01:18:23.759993 7fa79a385a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:18:23.759994 7fa79a385a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:18:23.759995 7fa79a385a80 Options.max_subcompactions: 1
+2021/03/14-01:18:23.759995 7fa79a385a80 Options.max_background_flushes: -1
+2021/03/14-01:18:23.759996 7fa79a385a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:18:23.759996 7fa79a385a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:18:23.759997 7fa79a385a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:18:23.759997 7fa79a385a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:18:23.759998 7fa79a385a80 Options.advise_random_on_open: 1
+2021/03/14-01:18:23.759998 7fa79a385a80 Options.db_write_buffer_size: 0
+2021/03/14-01:18:23.759999 7fa79a385a80 Options.write_buffer_manager: 0x2e96b90
+2021/03/14-01:18:23.760000 7fa79a385a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:18:23.760000 7fa79a385a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:18:23.760001 7fa79a385a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:18:23.760001 7fa79a385a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:18:23.760002 7fa79a385a80 Options.rate_limiter: (nil)
+2021/03/14-01:18:23.760003 7fa79a385a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:18:23.760011 7fa79a385a80 Options.wal_recovery_mode: 2
+2021/03/14-01:18:23.760012 7fa79a385a80 Options.enable_thread_tracking: 0
+2021/03/14-01:18:23.760012 7fa79a385a80 Options.enable_pipelined_write: 0
+2021/03/14-01:18:23.760013 7fa79a385a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:18:23.760013 7fa79a385a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:18:23.760014 7fa79a385a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:18:23.760015 7fa79a385a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:18:23.760015 7fa79a385a80 Options.row_cache: None
+2021/03/14-01:18:23.760016 7fa79a385a80 Options.wal_filter: None
+2021/03/14-01:18:23.760016 7fa79a385a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:18:23.760017 7fa79a385a80 Options.allow_ingest_behind: 0
+2021/03/14-01:18:23.760017 7fa79a385a80 Options.preserve_deletes: 0
+2021/03/14-01:18:23.760018 7fa79a385a80 Options.two_write_queues: 0
+2021/03/14-01:18:23.760018 7fa79a385a80 Options.manual_wal_flush: 0
+2021/03/14-01:18:23.760020 7fa79a385a80 Options.max_background_jobs: 16
+2021/03/14-01:18:23.760020 7fa79a385a80 Options.max_background_compactions: -1
+2021/03/14-01:18:23.760021 7fa79a385a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:18:23.760021 7fa79a385a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:18:23.760022 7fa79a385a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:18:23.760023 7fa79a385a80 Options.max_total_wal_size: 0
+2021/03/14-01:18:23.760023 7fa79a385a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:18:23.760024 7fa79a385a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:18:23.760024 7fa79a385a80 Options.max_open_files: -1
+2021/03/14-01:18:23.760025 7fa79a385a80 Options.bytes_per_sync: 0
+2021/03/14-01:18:23.760025 7fa79a385a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:18:23.760026 7fa79a385a80 Options.compaction_readahead_size: 0
+2021/03/14-01:18:23.760026 7fa79a385a80 Compression algorithms supported:
+2021/03/14-01:18:23.760027 7fa79a385a80 Snappy supported: 1
+2021/03/14-01:18:23.760028 7fa79a385a80 Zlib supported: 1
+2021/03/14-01:18:23.760028 7fa79a385a80 Bzip supported: 1
+2021/03/14-01:18:23.760029 7fa79a385a80 LZ4 supported: 1
+2021/03/14-01:18:23.760030 7fa79a385a80 ZSTDNotFinal supported: 1
+2021/03/14-01:18:23.760033 7fa79a385a80 ZSTD supported: 1
+2021/03/14-01:18:23.760036 7fa79a385a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:18:23.760038 7fa79a385a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:18:23.760125 7fa79a385a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:18:23.760179 7fa79a385a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:18:23.760180 7fa79a385a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:18:23.760181 7fa79a385a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:18:23.760182 7fa79a385a80 Options.compaction_filter: None
+2021/03/14-01:18:23.760182 7fa79a385a80 Options.compaction_filter_factory: None
+2021/03/14-01:18:23.760183 7fa79a385a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:18:23.760184 7fa79a385a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:18:23.760197 7fa79a385a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2ea6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2e8bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:18:23.760198 7fa79a385a80 Options.write_buffer_size: 134217728
+2021/03/14-01:18:23.760199 7fa79a385a80 Options.max_write_buffer_number: 6
+2021/03/14-01:18:23.760200 7fa79a385a80 Options.compression[0]: NoCompression
+2021/03/14-01:18:23.760200 7fa79a385a80 Options.compression[1]: NoCompression
+2021/03/14-01:18:23.760201 7fa79a385a80 Options.compression[2]: Snappy
+2021/03/14-01:18:23.760202 7fa79a385a80 Options.compression[3]: Snappy
+2021/03/14-01:18:23.760202 7fa79a385a80 Options.compression[4]: Snappy
+2021/03/14-01:18:23.760203 7fa79a385a80 Options.compression[5]: Snappy
+2021/03/14-01:18:23.760203 7fa79a385a80 Options.compression[6]: Snappy
+2021/03/14-01:18:23.760204 7fa79a385a80 Options.bottommost_compression: Disabled
+2021/03/14-01:18:23.760205 7fa79a385a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:18:23.760205 7fa79a385a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:18:23.760206 7fa79a385a80 Options.num_levels: 7
+2021/03/14-01:18:23.760206 7fa79a385a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:18:23.760207 7fa79a385a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:18:23.760208 7fa79a385a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:18:23.760208 7fa79a385a80 Options.compression_opts.level: -1
+2021/03/14-01:18:23.760209 7fa79a385a80 Options.compression_opts.strategy: 0
+2021/03/14-01:18:23.760209 7fa79a385a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:18:23.760210 7fa79a385a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:18:23.760211 7fa79a385a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:18:23.760211 7fa79a385a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:18:23.760212 7fa79a385a80 Options.target_file_size_base: 67108864
+2021/03/14-01:18:23.760212 7fa79a385a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:18:23.760213 7fa79a385a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:18:23.760214 7fa79a385a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:18:23.760214 7fa79a385a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:18:23.760215 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:18:23.760223 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:18:23.760224 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:18:23.760224 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:18:23.760225 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:18:23.760225 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:18:23.760226 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:18:23.760226 7fa79a385a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:18:23.760227 7fa79a385a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:18:23.760228 7fa79a385a80 Options.arena_block_size: 16777216
+2021/03/14-01:18:23.760228 7fa79a385a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:18:23.760229 7fa79a385a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:18:23.760229 7fa79a385a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:18:23.760230 7fa79a385a80 Options.disable_auto_compactions: 0
+2021/03/14-01:18:23.760232 7fa79a385a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:18:23.760232 7fa79a385a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:18:23.760233 7fa79a385a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:18:23.760234 7fa79a385a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:18:23.760234 7fa79a385a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:18:23.760235 7fa79a385a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:18:23.760235 7fa79a385a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:18:23.760236 7fa79a385a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:18:23.760237 7fa79a385a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:18:23.760242 7fa79a385a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:18:23.760243 7fa79a385a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:18:23.760244 7fa79a385a80 Options.table_properties_collectors:
+2021/03/14-01:18:23.760244 7fa79a385a80 Options.inplace_update_support: 0
+2021/03/14-01:18:23.760245 7fa79a385a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:18:23.760246 7fa79a385a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:18:23.760246 7fa79a385a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:18:23.760247 7fa79a385a80 Options.bloom_locality: 0
+2021/03/14-01:18:23.760248 7fa79a385a80 Options.max_successive_merges: 0
+2021/03/14-01:18:23.760248 7fa79a385a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:18:23.760249 7fa79a385a80 Options.paranoid_file_checks: 0
+2021/03/14-01:18:23.760249 7fa79a385a80 Options.force_consistency_checks: 0
+2021/03/14-01:18:23.760250 7fa79a385a80 Options.report_bg_io_stats: 0
+2021/03/14-01:18:23.760639 7fa79a385a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:18:23.760642 7fa79a385a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:18:23.760755 7fa79a385a80 EVENT_LOG_v1 {"time_micros": 1615681103760744, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:18:23.760760 7fa79a385a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:18:24.415122 7fa79a385a80 EVENT_LOG_v1 {"time_micros": 1615681104415119, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681162033292 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681162033292
new file mode 100644
index 0000000..fca2f5e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681162033292
@@ -0,0 +1,186 @@
+2021/03/14-01:18:24.427675 7fa79a385a80 RocksDB version: 5.11.3
+2021/03/14-01:18:24.427728 7fa79a385a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:18:24.427729 7fa79a385a80 Compile date Mar 13 2021
+2021/03/14-01:18:24.427734 7fa79a385a80 DB SUMMARY
+2021/03/14-01:18:24.427838 7fa79a385a80 CURRENT file: CURRENT
+2021/03/14-01:18:24.427839 7fa79a385a80 IDENTITY file: IDENTITY
+2021/03/14-01:18:24.427849 7fa79a385a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:18:24.427850 7fa79a385a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:18:24.427851 7fa79a385a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:18:24.427857 7fa79a385a80 Options.error_if_exists: 0
+2021/03/14-01:18:24.427858 7fa79a385a80 Options.create_if_missing: 1
+2021/03/14-01:18:24.427859 7fa79a385a80 Options.paranoid_checks: 1
+2021/03/14-01:18:24.427859 7fa79a385a80 Options.env: 0x7fa79ad3f080
+2021/03/14-01:18:24.427860 7fa79a385a80 Options.info_log: 0x2eaeca0
+2021/03/14-01:18:24.427861 7fa79a385a80 Options.max_file_opening_threads: 16
+2021/03/14-01:18:24.427861 7fa79a385a80 Options.statistics: (nil)
+2021/03/14-01:18:24.427862 7fa79a385a80 Options.use_fsync: 0
+2021/03/14-01:18:24.427863 7fa79a385a80 Options.max_log_file_size: 0
+2021/03/14-01:18:24.427863 7fa79a385a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:18:24.427864 7fa79a385a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:18:24.427865 7fa79a385a80 Options.keep_log_file_num: 1000
+2021/03/14-01:18:24.427865 7fa79a385a80 Options.recycle_log_file_num: 0
+2021/03/14-01:18:24.427866 7fa79a385a80 Options.allow_fallocate: 1
+2021/03/14-01:18:24.427866 7fa79a385a80 Options.allow_mmap_reads: 0
+2021/03/14-01:18:24.427867 7fa79a385a80 Options.allow_mmap_writes: 0
+2021/03/14-01:18:24.427867 7fa79a385a80 Options.use_direct_reads: 0
+2021/03/14-01:18:24.427868 7fa79a385a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:18:24.427869 7fa79a385a80 Options.create_missing_column_families: 0
+2021/03/14-01:18:24.427869 7fa79a385a80 Options.db_log_dir:
+2021/03/14-01:18:24.427870 7fa79a385a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:18:24.427870 7fa79a385a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:18:24.427871 7fa79a385a80 Options.max_subcompactions: 1
+2021/03/14-01:18:24.427871 7fa79a385a80 Options.max_background_flushes: -1
+2021/03/14-01:18:24.427872 7fa79a385a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:18:24.427873 7fa79a385a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:18:24.427873 7fa79a385a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:18:24.427874 7fa79a385a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:18:24.427874 7fa79a385a80 Options.advise_random_on_open: 1
+2021/03/14-01:18:24.427875 7fa79a385a80 Options.db_write_buffer_size: 0
+2021/03/14-01:18:24.427875 7fa79a385a80 Options.write_buffer_manager: 0x2e96b90
+2021/03/14-01:18:24.427876 7fa79a385a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:18:24.427876 7fa79a385a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:18:24.427877 7fa79a385a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:18:24.427878 7fa79a385a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:18:24.427878 7fa79a385a80 Options.rate_limiter: (nil)
+2021/03/14-01:18:24.427879 7fa79a385a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:18:24.427887 7fa79a385a80 Options.wal_recovery_mode: 2
+2021/03/14-01:18:24.427888 7fa79a385a80 Options.enable_thread_tracking: 0
+2021/03/14-01:18:24.427888 7fa79a385a80 Options.enable_pipelined_write: 0
+2021/03/14-01:18:24.427889 7fa79a385a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:18:24.427889 7fa79a385a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:18:24.427890 7fa79a385a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:18:24.427891 7fa79a385a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:18:24.427891 7fa79a385a80 Options.row_cache: None
+2021/03/14-01:18:24.427892 7fa79a385a80 Options.wal_filter: None
+2021/03/14-01:18:24.427892 7fa79a385a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:18:24.427893 7fa79a385a80 Options.allow_ingest_behind: 0
+2021/03/14-01:18:24.427893 7fa79a385a80 Options.preserve_deletes: 0
+2021/03/14-01:18:24.427894 7fa79a385a80 Options.two_write_queues: 0
+2021/03/14-01:18:24.427894 7fa79a385a80 Options.manual_wal_flush: 0
+2021/03/14-01:18:24.427896 7fa79a385a80 Options.max_background_jobs: 16
+2021/03/14-01:18:24.427896 7fa79a385a80 Options.max_background_compactions: -1
+2021/03/14-01:18:24.427897 7fa79a385a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:18:24.427897 7fa79a385a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:18:24.427898 7fa79a385a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:18:24.427899 7fa79a385a80 Options.max_total_wal_size: 0
+2021/03/14-01:18:24.427899 7fa79a385a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:18:24.427900 7fa79a385a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:18:24.427900 7fa79a385a80 Options.max_open_files: -1
+2021/03/14-01:18:24.427901 7fa79a385a80 Options.bytes_per_sync: 0
+2021/03/14-01:18:24.427901 7fa79a385a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:18:24.427902 7fa79a385a80 Options.compaction_readahead_size: 0
+2021/03/14-01:18:24.427902 7fa79a385a80 Compression algorithms supported:
+2021/03/14-01:18:24.427903 7fa79a385a80 Snappy supported: 1
+2021/03/14-01:18:24.427904 7fa79a385a80 Zlib supported: 1
+2021/03/14-01:18:24.427904 7fa79a385a80 Bzip supported: 1
+2021/03/14-01:18:24.427905 7fa79a385a80 LZ4 supported: 1
+2021/03/14-01:18:24.427905 7fa79a385a80 ZSTDNotFinal supported: 1
+2021/03/14-01:18:24.427909 7fa79a385a80 ZSTD supported: 1
+2021/03/14-01:18:24.427912 7fa79a385a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:18:24.427913 7fa79a385a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:18:24.427998 7fa79a385a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:18:24.428051 7fa79a385a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:18:24.428053 7fa79a385a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:18:24.428054 7fa79a385a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:18:24.428054 7fa79a385a80 Options.compaction_filter: None
+2021/03/14-01:18:24.428055 7fa79a385a80 Options.compaction_filter_factory: None
+2021/03/14-01:18:24.428055 7fa79a385a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:18:24.428056 7fa79a385a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:18:24.428069 7fa79a385a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2ea6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2e8bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:18:24.428070 7fa79a385a80 Options.write_buffer_size: 134217728
+2021/03/14-01:18:24.428071 7fa79a385a80 Options.max_write_buffer_number: 6
+2021/03/14-01:18:24.428071 7fa79a385a80 Options.compression[0]: NoCompression
+2021/03/14-01:18:24.428072 7fa79a385a80 Options.compression[1]: NoCompression
+2021/03/14-01:18:24.428073 7fa79a385a80 Options.compression[2]: Snappy
+2021/03/14-01:18:24.428073 7fa79a385a80 Options.compression[3]: Snappy
+2021/03/14-01:18:24.428074 7fa79a385a80 Options.compression[4]: Snappy
+2021/03/14-01:18:24.428074 7fa79a385a80 Options.compression[5]: Snappy
+2021/03/14-01:18:24.428075 7fa79a385a80 Options.compression[6]: Snappy
+2021/03/14-01:18:24.428076 7fa79a385a80 Options.bottommost_compression: Disabled
+2021/03/14-01:18:24.428077 7fa79a385a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:18:24.428077 7fa79a385a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:18:24.428078 7fa79a385a80 Options.num_levels: 7
+2021/03/14-01:18:24.428078 7fa79a385a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:18:24.428079 7fa79a385a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:18:24.428080 7fa79a385a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:18:24.428080 7fa79a385a80 Options.compression_opts.level: -1
+2021/03/14-01:18:24.428081 7fa79a385a80 Options.compression_opts.strategy: 0
+2021/03/14-01:18:24.428081 7fa79a385a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:18:24.428082 7fa79a385a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:18:24.428083 7fa79a385a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:18:24.428083 7fa79a385a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:18:24.428084 7fa79a385a80 Options.target_file_size_base: 67108864
+2021/03/14-01:18:24.428084 7fa79a385a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:18:24.428085 7fa79a385a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:18:24.428086 7fa79a385a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:18:24.428086 7fa79a385a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:18:24.428088 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:18:24.428095 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:18:24.428096 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:18:24.428096 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:18:24.428097 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:18:24.428097 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:18:24.428098 7fa79a385a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:18:24.428098 7fa79a385a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:18:24.428099 7fa79a385a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:18:24.428100 7fa79a385a80 Options.arena_block_size: 16777216
+2021/03/14-01:18:24.428100 7fa79a385a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:18:24.428101 7fa79a385a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:18:24.428101 7fa79a385a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:18:24.428102 7fa79a385a80 Options.disable_auto_compactions: 0
+2021/03/14-01:18:24.428104 7fa79a385a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:18:24.428105 7fa79a385a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:18:24.428105 7fa79a385a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:18:24.428106 7fa79a385a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:18:24.428106 7fa79a385a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:18:24.428107 7fa79a385a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:18:24.428108 7fa79a385a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:18:24.428108 7fa79a385a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:18:24.428109 7fa79a385a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:18:24.428110 7fa79a385a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:18:24.428110 7fa79a385a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:18:24.428111 7fa79a385a80 Options.table_properties_collectors:
+2021/03/14-01:18:24.428111 7fa79a385a80 Options.inplace_update_support: 0
+2021/03/14-01:18:24.428112 7fa79a385a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:18:24.428113 7fa79a385a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:18:24.428113 7fa79a385a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:18:24.428114 7fa79a385a80 Options.bloom_locality: 0
+2021/03/14-01:18:24.428115 7fa79a385a80 Options.max_successive_merges: 0
+2021/03/14-01:18:24.428115 7fa79a385a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:18:24.428116 7fa79a385a80 Options.paranoid_file_checks: 0
+2021/03/14-01:18:24.428116 7fa79a385a80 Options.force_consistency_checks: 0
+2021/03/14-01:18:24.428117 7fa79a385a80 Options.report_bg_io_stats: 0
+2021/03/14-01:18:24.428499 7fa79a385a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:18:24.428502 7fa79a385a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:18:24.428614 7fa79a385a80 EVENT_LOG_v1 {"time_micros": 1615681104428604, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:18:24.428619 7fa79a385a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:18:25.076627 7fa79a385a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681162741346 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681162741346
new file mode 100644
index 0000000..fba6cff
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681162741346
@@ -0,0 +1,186 @@
+2021/03/14-01:19:22.033789 7f39c0791a80 RocksDB version: 5.11.3
+2021/03/14-01:19:22.033860 7f39c0791a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:19:22.033862 7f39c0791a80 Compile date Mar 13 2021
+2021/03/14-01:19:22.033866 7f39c0791a80 DB SUMMARY
+2021/03/14-01:19:22.033997 7f39c0791a80 CURRENT file: CURRENT
+2021/03/14-01:19:22.033998 7f39c0791a80 IDENTITY file: IDENTITY
+2021/03/14-01:19:22.034011 7f39c0791a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:19:22.034012 7f39c0791a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:19:22.034013 7f39c0791a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:19:22.034021 7f39c0791a80 Options.error_if_exists: 0
+2021/03/14-01:19:22.034021 7f39c0791a80 Options.create_if_missing: 1
+2021/03/14-01:19:22.034022 7f39c0791a80 Options.paranoid_checks: 1
+2021/03/14-01:19:22.034023 7f39c0791a80 Options.env: 0x7f39c114b080
+2021/03/14-01:19:22.034024 7f39c0791a80 Options.info_log: 0x2ececa0
+2021/03/14-01:19:22.034024 7f39c0791a80 Options.max_file_opening_threads: 16
+2021/03/14-01:19:22.034025 7f39c0791a80 Options.statistics: (nil)
+2021/03/14-01:19:22.034026 7f39c0791a80 Options.use_fsync: 0
+2021/03/14-01:19:22.034027 7f39c0791a80 Options.max_log_file_size: 0
+2021/03/14-01:19:22.034027 7f39c0791a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:19:22.034028 7f39c0791a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:19:22.034029 7f39c0791a80 Options.keep_log_file_num: 1000
+2021/03/14-01:19:22.034029 7f39c0791a80 Options.recycle_log_file_num: 0
+2021/03/14-01:19:22.034030 7f39c0791a80 Options.allow_fallocate: 1
+2021/03/14-01:19:22.034031 7f39c0791a80 Options.allow_mmap_reads: 0
+2021/03/14-01:19:22.034032 7f39c0791a80 Options.allow_mmap_writes: 0
+2021/03/14-01:19:22.034032 7f39c0791a80 Options.use_direct_reads: 0
+2021/03/14-01:19:22.034033 7f39c0791a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:19:22.034034 7f39c0791a80 Options.create_missing_column_families: 0
+2021/03/14-01:19:22.034034 7f39c0791a80 Options.db_log_dir:
+2021/03/14-01:19:22.034035 7f39c0791a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:19:22.034036 7f39c0791a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:19:22.034036 7f39c0791a80 Options.max_subcompactions: 1
+2021/03/14-01:19:22.034037 7f39c0791a80 Options.max_background_flushes: -1
+2021/03/14-01:19:22.034038 7f39c0791a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:19:22.034038 7f39c0791a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:19:22.034039 7f39c0791a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:19:22.034040 7f39c0791a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:19:22.034041 7f39c0791a80 Options.advise_random_on_open: 1
+2021/03/14-01:19:22.034041 7f39c0791a80 Options.db_write_buffer_size: 0
+2021/03/14-01:19:22.034042 7f39c0791a80 Options.write_buffer_manager: 0x2eb6b90
+2021/03/14-01:19:22.034043 7f39c0791a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:19:22.034043 7f39c0791a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:19:22.034044 7f39c0791a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:19:22.034045 7f39c0791a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:19:22.034045 7f39c0791a80 Options.rate_limiter: (nil)
+2021/03/14-01:19:22.034047 7f39c0791a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:19:22.034056 7f39c0791a80 Options.wal_recovery_mode: 2
+2021/03/14-01:19:22.034057 7f39c0791a80 Options.enable_thread_tracking: 0
+2021/03/14-01:19:22.034058 7f39c0791a80 Options.enable_pipelined_write: 0
+2021/03/14-01:19:22.034059 7f39c0791a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:19:22.034059 7f39c0791a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:19:22.034060 7f39c0791a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:19:22.034061 7f39c0791a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:19:22.034061 7f39c0791a80 Options.row_cache: None
+2021/03/14-01:19:22.034062 7f39c0791a80 Options.wal_filter: None
+2021/03/14-01:19:22.034063 7f39c0791a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:19:22.034064 7f39c0791a80 Options.allow_ingest_behind: 0
+2021/03/14-01:19:22.034064 7f39c0791a80 Options.preserve_deletes: 0
+2021/03/14-01:19:22.034065 7f39c0791a80 Options.two_write_queues: 0
+2021/03/14-01:19:22.034065 7f39c0791a80 Options.manual_wal_flush: 0
+2021/03/14-01:19:22.034067 7f39c0791a80 Options.max_background_jobs: 16
+2021/03/14-01:19:22.034068 7f39c0791a80 Options.max_background_compactions: -1
+2021/03/14-01:19:22.034068 7f39c0791a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:19:22.034069 7f39c0791a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:19:22.034070 7f39c0791a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:19:22.034070 7f39c0791a80 Options.max_total_wal_size: 0
+2021/03/14-01:19:22.034071 7f39c0791a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:19:22.034072 7f39c0791a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:19:22.034073 7f39c0791a80 Options.max_open_files: -1
+2021/03/14-01:19:22.034073 7f39c0791a80 Options.bytes_per_sync: 0
+2021/03/14-01:19:22.034074 7f39c0791a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:19:22.034075 7f39c0791a80 Options.compaction_readahead_size: 0
+2021/03/14-01:19:22.034075 7f39c0791a80 Compression algorithms supported:
+2021/03/14-01:19:22.034076 7f39c0791a80 Snappy supported: 1
+2021/03/14-01:19:22.034077 7f39c0791a80 Zlib supported: 1
+2021/03/14-01:19:22.034077 7f39c0791a80 Bzip supported: 1
+2021/03/14-01:19:22.034078 7f39c0791a80 LZ4 supported: 1
+2021/03/14-01:19:22.034079 7f39c0791a80 ZSTDNotFinal supported: 1
+2021/03/14-01:19:22.034084 7f39c0791a80 ZSTD supported: 1
+2021/03/14-01:19:22.034089 7f39c0791a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:19:22.034090 7f39c0791a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:19:22.034258 7f39c0791a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:19:22.034335 7f39c0791a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:19:22.034337 7f39c0791a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:19:22.034338 7f39c0791a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:19:22.034339 7f39c0791a80 Options.compaction_filter: None
+2021/03/14-01:19:22.034340 7f39c0791a80 Options.compaction_filter_factory: None
+2021/03/14-01:19:22.034341 7f39c0791a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:19:22.034342 7f39c0791a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:19:22.034359 7f39c0791a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2ec6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2eabc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:19:22.034360 7f39c0791a80 Options.write_buffer_size: 134217728
+2021/03/14-01:19:22.034361 7f39c0791a80 Options.max_write_buffer_number: 6
+2021/03/14-01:19:22.034361 7f39c0791a80 Options.compression[0]: NoCompression
+2021/03/14-01:19:22.034362 7f39c0791a80 Options.compression[1]: NoCompression
+2021/03/14-01:19:22.034363 7f39c0791a80 Options.compression[2]: Snappy
+2021/03/14-01:19:22.034364 7f39c0791a80 Options.compression[3]: Snappy
+2021/03/14-01:19:22.034364 7f39c0791a80 Options.compression[4]: Snappy
+2021/03/14-01:19:22.034365 7f39c0791a80 Options.compression[5]: Snappy
+2021/03/14-01:19:22.034366 7f39c0791a80 Options.compression[6]: Snappy
+2021/03/14-01:19:22.034366 7f39c0791a80 Options.bottommost_compression: Disabled
+2021/03/14-01:19:22.034367 7f39c0791a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:19:22.034368 7f39c0791a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:19:22.034369 7f39c0791a80 Options.num_levels: 7
+2021/03/14-01:19:22.034369 7f39c0791a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:19:22.034370 7f39c0791a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:19:22.034371 7f39c0791a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:19:22.034371 7f39c0791a80 Options.compression_opts.level: -1
+2021/03/14-01:19:22.034372 7f39c0791a80 Options.compression_opts.strategy: 0
+2021/03/14-01:19:22.034373 7f39c0791a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:19:22.034373 7f39c0791a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:19:22.034374 7f39c0791a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:19:22.034375 7f39c0791a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:19:22.034375 7f39c0791a80 Options.target_file_size_base: 67108864
+2021/03/14-01:19:22.034376 7f39c0791a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:19:22.034377 7f39c0791a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:19:22.034377 7f39c0791a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:19:22.034378 7f39c0791a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:19:22.034380 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:19:22.034391 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:19:22.034392 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:19:22.034392 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:19:22.034393 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:19:22.034394 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:19:22.034394 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:19:22.034395 7f39c0791a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:19:22.034396 7f39c0791a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:19:22.034396 7f39c0791a80 Options.arena_block_size: 16777216
+2021/03/14-01:19:22.034397 7f39c0791a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:19:22.034398 7f39c0791a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:19:22.034399 7f39c0791a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:19:22.034399 7f39c0791a80 Options.disable_auto_compactions: 0
+2021/03/14-01:19:22.034401 7f39c0791a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:19:22.034402 7f39c0791a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:19:22.034403 7f39c0791a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:19:22.034403 7f39c0791a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:19:22.034404 7f39c0791a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:19:22.034405 7f39c0791a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:19:22.034406 7f39c0791a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:19:22.034407 7f39c0791a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:19:22.034408 7f39c0791a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:19:22.034409 7f39c0791a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:19:22.034410 7f39c0791a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:19:22.034411 7f39c0791a80 Options.table_properties_collectors:
+2021/03/14-01:19:22.034412 7f39c0791a80 Options.inplace_update_support: 0
+2021/03/14-01:19:22.034413 7f39c0791a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:19:22.034414 7f39c0791a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:19:22.034416 7f39c0791a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:19:22.034417 7f39c0791a80 Options.bloom_locality: 0
+2021/03/14-01:19:22.034418 7f39c0791a80 Options.max_successive_merges: 0
+2021/03/14-01:19:22.034419 7f39c0791a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:19:22.034420 7f39c0791a80 Options.paranoid_file_checks: 0
+2021/03/14-01:19:22.034420 7f39c0791a80 Options.force_consistency_checks: 0
+2021/03/14-01:19:22.034421 7f39c0791a80 Options.report_bg_io_stats: 0
+2021/03/14-01:19:22.034996 7f39c0791a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:19:22.035000 7f39c0791a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:19:22.035156 7f39c0791a80 EVENT_LOG_v1 {"time_micros": 1615681162035138, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:19:22.035163 7f39c0791a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:19:22.729255 7f39c0791a80 EVENT_LOG_v1 {"time_micros": 1615681162729252, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681163432851 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681163432851
new file mode 100644
index 0000000..1e0e72b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681163432851
@@ -0,0 +1,186 @@
+2021/03/14-01:19:22.741713 7f39c0791a80 RocksDB version: 5.11.3
+2021/03/14-01:19:22.741766 7f39c0791a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:19:22.741767 7f39c0791a80 Compile date Mar 13 2021
+2021/03/14-01:19:22.741769 7f39c0791a80 DB SUMMARY
+2021/03/14-01:19:22.741874 7f39c0791a80 CURRENT file: CURRENT
+2021/03/14-01:19:22.741875 7f39c0791a80 IDENTITY file: IDENTITY
+2021/03/14-01:19:22.741885 7f39c0791a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:19:22.741886 7f39c0791a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:19:22.741887 7f39c0791a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:19:22.741893 7f39c0791a80 Options.error_if_exists: 0
+2021/03/14-01:19:22.741894 7f39c0791a80 Options.create_if_missing: 1
+2021/03/14-01:19:22.741895 7f39c0791a80 Options.paranoid_checks: 1
+2021/03/14-01:19:22.741895 7f39c0791a80 Options.env: 0x7f39c114b080
+2021/03/14-01:19:22.741896 7f39c0791a80 Options.info_log: 0x2ececa0
+2021/03/14-01:19:22.741897 7f39c0791a80 Options.max_file_opening_threads: 16
+2021/03/14-01:19:22.741897 7f39c0791a80 Options.statistics: (nil)
+2021/03/14-01:19:22.741898 7f39c0791a80 Options.use_fsync: 0
+2021/03/14-01:19:22.741898 7f39c0791a80 Options.max_log_file_size: 0
+2021/03/14-01:19:22.741899 7f39c0791a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:19:22.741900 7f39c0791a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:19:22.741900 7f39c0791a80 Options.keep_log_file_num: 1000
+2021/03/14-01:19:22.741901 7f39c0791a80 Options.recycle_log_file_num: 0
+2021/03/14-01:19:22.741902 7f39c0791a80 Options.allow_fallocate: 1
+2021/03/14-01:19:22.741902 7f39c0791a80 Options.allow_mmap_reads: 0
+2021/03/14-01:19:22.741903 7f39c0791a80 Options.allow_mmap_writes: 0
+2021/03/14-01:19:22.741903 7f39c0791a80 Options.use_direct_reads: 0
+2021/03/14-01:19:22.741904 7f39c0791a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:19:22.741904 7f39c0791a80 Options.create_missing_column_families: 0
+2021/03/14-01:19:22.741905 7f39c0791a80 Options.db_log_dir:
+2021/03/14-01:19:22.741905 7f39c0791a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:19:22.741906 7f39c0791a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:19:22.741906 7f39c0791a80 Options.max_subcompactions: 1
+2021/03/14-01:19:22.741907 7f39c0791a80 Options.max_background_flushes: -1
+2021/03/14-01:19:22.741908 7f39c0791a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:19:22.741908 7f39c0791a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:19:22.741909 7f39c0791a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:19:22.741909 7f39c0791a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:19:22.741910 7f39c0791a80 Options.advise_random_on_open: 1
+2021/03/14-01:19:22.741910 7f39c0791a80 Options.db_write_buffer_size: 0
+2021/03/14-01:19:22.741911 7f39c0791a80 Options.write_buffer_manager: 0x2eb6b90
+2021/03/14-01:19:22.741912 7f39c0791a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:19:22.741912 7f39c0791a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:19:22.741913 7f39c0791a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:19:22.741913 7f39c0791a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:19:22.741914 7f39c0791a80 Options.rate_limiter: (nil)
+2021/03/14-01:19:22.741915 7f39c0791a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:19:22.741923 7f39c0791a80 Options.wal_recovery_mode: 2
+2021/03/14-01:19:22.741924 7f39c0791a80 Options.enable_thread_tracking: 0
+2021/03/14-01:19:22.741925 7f39c0791a80 Options.enable_pipelined_write: 0
+2021/03/14-01:19:22.741925 7f39c0791a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:19:22.741926 7f39c0791a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:19:22.741926 7f39c0791a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:19:22.741927 7f39c0791a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:19:22.741928 7f39c0791a80 Options.row_cache: None
+2021/03/14-01:19:22.741928 7f39c0791a80 Options.wal_filter: None
+2021/03/14-01:19:22.741929 7f39c0791a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:19:22.741929 7f39c0791a80 Options.allow_ingest_behind: 0
+2021/03/14-01:19:22.741930 7f39c0791a80 Options.preserve_deletes: 0
+2021/03/14-01:19:22.741930 7f39c0791a80 Options.two_write_queues: 0
+2021/03/14-01:19:22.741931 7f39c0791a80 Options.manual_wal_flush: 0
+2021/03/14-01:19:22.741932 7f39c0791a80 Options.max_background_jobs: 16
+2021/03/14-01:19:22.741933 7f39c0791a80 Options.max_background_compactions: -1
+2021/03/14-01:19:22.741933 7f39c0791a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:19:22.741934 7f39c0791a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:19:22.741934 7f39c0791a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:19:22.741935 7f39c0791a80 Options.max_total_wal_size: 0
+2021/03/14-01:19:22.741935 7f39c0791a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:19:22.741936 7f39c0791a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:19:22.741937 7f39c0791a80 Options.max_open_files: -1
+2021/03/14-01:19:22.741937 7f39c0791a80 Options.bytes_per_sync: 0
+2021/03/14-01:19:22.741938 7f39c0791a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:19:22.741938 7f39c0791a80 Options.compaction_readahead_size: 0
+2021/03/14-01:19:22.741939 7f39c0791a80 Compression algorithms supported:
+2021/03/14-01:19:22.741939 7f39c0791a80 Snappy supported: 1
+2021/03/14-01:19:22.741940 7f39c0791a80 Zlib supported: 1
+2021/03/14-01:19:22.741941 7f39c0791a80 Bzip supported: 1
+2021/03/14-01:19:22.741941 7f39c0791a80 LZ4 supported: 1
+2021/03/14-01:19:22.741942 7f39c0791a80 ZSTDNotFinal supported: 1
+2021/03/14-01:19:22.741946 7f39c0791a80 ZSTD supported: 1
+2021/03/14-01:19:22.741949 7f39c0791a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:19:22.741950 7f39c0791a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:19:22.742045 7f39c0791a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:19:22.742099 7f39c0791a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:19:22.742100 7f39c0791a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:19:22.742101 7f39c0791a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:19:22.742102 7f39c0791a80 Options.compaction_filter: None
+2021/03/14-01:19:22.742102 7f39c0791a80 Options.compaction_filter_factory: None
+2021/03/14-01:19:22.742103 7f39c0791a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:19:22.742104 7f39c0791a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:19:22.742117 7f39c0791a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2ec6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2eabc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:19:22.742118 7f39c0791a80 Options.write_buffer_size: 134217728
+2021/03/14-01:19:22.742119 7f39c0791a80 Options.max_write_buffer_number: 6
+2021/03/14-01:19:22.742120 7f39c0791a80 Options.compression[0]: NoCompression
+2021/03/14-01:19:22.742120 7f39c0791a80 Options.compression[1]: NoCompression
+2021/03/14-01:19:22.742121 7f39c0791a80 Options.compression[2]: Snappy
+2021/03/14-01:19:22.742122 7f39c0791a80 Options.compression[3]: Snappy
+2021/03/14-01:19:22.742122 7f39c0791a80 Options.compression[4]: Snappy
+2021/03/14-01:19:22.742123 7f39c0791a80 Options.compression[5]: Snappy
+2021/03/14-01:19:22.742123 7f39c0791a80 Options.compression[6]: Snappy
+2021/03/14-01:19:22.742124 7f39c0791a80 Options.bottommost_compression: Disabled
+2021/03/14-01:19:22.742125 7f39c0791a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:19:22.742125 7f39c0791a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:19:22.742126 7f39c0791a80 Options.num_levels: 7
+2021/03/14-01:19:22.742126 7f39c0791a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:19:22.742127 7f39c0791a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:19:22.742128 7f39c0791a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:19:22.742128 7f39c0791a80 Options.compression_opts.level: -1
+2021/03/14-01:19:22.742129 7f39c0791a80 Options.compression_opts.strategy: 0
+2021/03/14-01:19:22.742129 7f39c0791a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:19:22.742130 7f39c0791a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:19:22.742130 7f39c0791a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:19:22.742131 7f39c0791a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:19:22.742132 7f39c0791a80 Options.target_file_size_base: 67108864
+2021/03/14-01:19:22.742132 7f39c0791a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:19:22.742133 7f39c0791a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:19:22.742133 7f39c0791a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:19:22.742134 7f39c0791a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:19:22.742135 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:19:22.742143 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:19:22.742143 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:19:22.742144 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:19:22.742145 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:19:22.742145 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:19:22.742146 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:19:22.742146 7f39c0791a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:19:22.742147 7f39c0791a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:19:22.742147 7f39c0791a80 Options.arena_block_size: 16777216
+2021/03/14-01:19:22.742148 7f39c0791a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:19:22.742149 7f39c0791a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:19:22.742149 7f39c0791a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:19:22.742150 7f39c0791a80 Options.disable_auto_compactions: 0
+2021/03/14-01:19:22.742151 7f39c0791a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:19:22.742152 7f39c0791a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:19:22.742152 7f39c0791a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:19:22.742153 7f39c0791a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:19:22.742154 7f39c0791a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:19:22.742154 7f39c0791a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:19:22.742155 7f39c0791a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:19:22.742156 7f39c0791a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:19:22.742156 7f39c0791a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:19:22.742157 7f39c0791a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:19:22.742157 7f39c0791a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:19:22.742158 7f39c0791a80 Options.table_properties_collectors:
+2021/03/14-01:19:22.742158 7f39c0791a80 Options.inplace_update_support: 0
+2021/03/14-01:19:22.742159 7f39c0791a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:19:22.742160 7f39c0791a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:19:22.742160 7f39c0791a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:19:22.742161 7f39c0791a80 Options.bloom_locality: 0
+2021/03/14-01:19:22.742162 7f39c0791a80 Options.max_successive_merges: 0
+2021/03/14-01:19:22.742162 7f39c0791a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:19:22.742163 7f39c0791a80 Options.paranoid_file_checks: 0
+2021/03/14-01:19:22.742163 7f39c0791a80 Options.force_consistency_checks: 0
+2021/03/14-01:19:22.742164 7f39c0791a80 Options.report_bg_io_stats: 0
+2021/03/14-01:19:22.742537 7f39c0791a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:19:22.742540 7f39c0791a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:19:22.742655 7f39c0791a80 EVENT_LOG_v1 {"time_micros": 1615681162742642, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:19:22.742660 7f39c0791a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:19:23.421059 7f39c0791a80 EVENT_LOG_v1 {"time_micros": 1615681163421055, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681164123432 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681164123432
new file mode 100644
index 0000000..b45d066
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681164123432
@@ -0,0 +1,186 @@
+2021/03/14-01:19:23.433214 7f39c0791a80 RocksDB version: 5.11.3
+2021/03/14-01:19:23.433272 7f39c0791a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:19:23.433274 7f39c0791a80 Compile date Mar 13 2021
+2021/03/14-01:19:23.433276 7f39c0791a80 DB SUMMARY
+2021/03/14-01:19:23.433385 7f39c0791a80 CURRENT file: CURRENT
+2021/03/14-01:19:23.433386 7f39c0791a80 IDENTITY file: IDENTITY
+2021/03/14-01:19:23.433397 7f39c0791a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:19:23.433398 7f39c0791a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:19:23.433399 7f39c0791a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:19:23.433405 7f39c0791a80 Options.error_if_exists: 0
+2021/03/14-01:19:23.433406 7f39c0791a80 Options.create_if_missing: 1
+2021/03/14-01:19:23.433406 7f39c0791a80 Options.paranoid_checks: 1
+2021/03/14-01:19:23.433407 7f39c0791a80 Options.env: 0x7f39c114b080
+2021/03/14-01:19:23.433408 7f39c0791a80 Options.info_log: 0x2ececa0
+2021/03/14-01:19:23.433408 7f39c0791a80 Options.max_file_opening_threads: 16
+2021/03/14-01:19:23.433409 7f39c0791a80 Options.statistics: (nil)
+2021/03/14-01:19:23.433409 7f39c0791a80 Options.use_fsync: 0
+2021/03/14-01:19:23.433410 7f39c0791a80 Options.max_log_file_size: 0
+2021/03/14-01:19:23.433411 7f39c0791a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:19:23.433411 7f39c0791a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:19:23.433412 7f39c0791a80 Options.keep_log_file_num: 1000
+2021/03/14-01:19:23.433412 7f39c0791a80 Options.recycle_log_file_num: 0
+2021/03/14-01:19:23.433413 7f39c0791a80 Options.allow_fallocate: 1
+2021/03/14-01:19:23.433414 7f39c0791a80 Options.allow_mmap_reads: 0
+2021/03/14-01:19:23.433414 7f39c0791a80 Options.allow_mmap_writes: 0
+2021/03/14-01:19:23.433415 7f39c0791a80 Options.use_direct_reads: 0
+2021/03/14-01:19:23.433415 7f39c0791a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:19:23.433416 7f39c0791a80 Options.create_missing_column_families: 0
+2021/03/14-01:19:23.433416 7f39c0791a80 Options.db_log_dir:
+2021/03/14-01:19:23.433417 7f39c0791a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:19:23.433417 7f39c0791a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:19:23.433418 7f39c0791a80 Options.max_subcompactions: 1
+2021/03/14-01:19:23.433419 7f39c0791a80 Options.max_background_flushes: -1
+2021/03/14-01:19:23.433419 7f39c0791a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:19:23.433420 7f39c0791a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:19:23.433420 7f39c0791a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:19:23.433421 7f39c0791a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:19:23.433422 7f39c0791a80 Options.advise_random_on_open: 1
+2021/03/14-01:19:23.433422 7f39c0791a80 Options.db_write_buffer_size: 0
+2021/03/14-01:19:23.433423 7f39c0791a80 Options.write_buffer_manager: 0x2eb6b90
+2021/03/14-01:19:23.433423 7f39c0791a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:19:23.433424 7f39c0791a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:19:23.433424 7f39c0791a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:19:23.433425 7f39c0791a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:19:23.433425 7f39c0791a80 Options.rate_limiter: (nil)
+2021/03/14-01:19:23.433427 7f39c0791a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:19:23.433434 7f39c0791a80 Options.wal_recovery_mode: 2
+2021/03/14-01:19:23.433435 7f39c0791a80 Options.enable_thread_tracking: 0
+2021/03/14-01:19:23.433436 7f39c0791a80 Options.enable_pipelined_write: 0
+2021/03/14-01:19:23.433436 7f39c0791a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:19:23.433437 7f39c0791a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:19:23.433437 7f39c0791a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:19:23.433438 7f39c0791a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:19:23.433438 7f39c0791a80 Options.row_cache: None
+2021/03/14-01:19:23.433439 7f39c0791a80 Options.wal_filter: None
+2021/03/14-01:19:23.433440 7f39c0791a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:19:23.433440 7f39c0791a80 Options.allow_ingest_behind: 0
+2021/03/14-01:19:23.433441 7f39c0791a80 Options.preserve_deletes: 0
+2021/03/14-01:19:23.433441 7f39c0791a80 Options.two_write_queues: 0
+2021/03/14-01:19:23.433442 7f39c0791a80 Options.manual_wal_flush: 0
+2021/03/14-01:19:23.433443 7f39c0791a80 Options.max_background_jobs: 16
+2021/03/14-01:19:23.433444 7f39c0791a80 Options.max_background_compactions: -1
+2021/03/14-01:19:23.433444 7f39c0791a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:19:23.433445 7f39c0791a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:19:23.433445 7f39c0791a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:19:23.433446 7f39c0791a80 Options.max_total_wal_size: 0
+2021/03/14-01:19:23.433446 7f39c0791a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:19:23.433447 7f39c0791a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:19:23.433448 7f39c0791a80 Options.max_open_files: -1
+2021/03/14-01:19:23.433448 7f39c0791a80 Options.bytes_per_sync: 0
+2021/03/14-01:19:23.433449 7f39c0791a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:19:23.433449 7f39c0791a80 Options.compaction_readahead_size: 0
+2021/03/14-01:19:23.433450 7f39c0791a80 Compression algorithms supported:
+2021/03/14-01:19:23.433450 7f39c0791a80 Snappy supported: 1
+2021/03/14-01:19:23.433451 7f39c0791a80 Zlib supported: 1
+2021/03/14-01:19:23.433452 7f39c0791a80 Bzip supported: 1
+2021/03/14-01:19:23.433452 7f39c0791a80 LZ4 supported: 1
+2021/03/14-01:19:23.433453 7f39c0791a80 ZSTDNotFinal supported: 1
+2021/03/14-01:19:23.433457 7f39c0791a80 ZSTD supported: 1
+2021/03/14-01:19:23.433460 7f39c0791a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:19:23.433461 7f39c0791a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:19:23.433549 7f39c0791a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:19:23.433604 7f39c0791a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:19:23.433605 7f39c0791a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:19:23.433606 7f39c0791a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:19:23.433607 7f39c0791a80 Options.compaction_filter: None
+2021/03/14-01:19:23.433607 7f39c0791a80 Options.compaction_filter_factory: None
+2021/03/14-01:19:23.433608 7f39c0791a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:19:23.433609 7f39c0791a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:19:23.433623 7f39c0791a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2ec6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2eabc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:19:23.433624 7f39c0791a80 Options.write_buffer_size: 134217728
+2021/03/14-01:19:23.433624 7f39c0791a80 Options.max_write_buffer_number: 6
+2021/03/14-01:19:23.433625 7f39c0791a80 Options.compression[0]: NoCompression
+2021/03/14-01:19:23.433626 7f39c0791a80 Options.compression[1]: NoCompression
+2021/03/14-01:19:23.433626 7f39c0791a80 Options.compression[2]: Snappy
+2021/03/14-01:19:23.433627 7f39c0791a80 Options.compression[3]: Snappy
+2021/03/14-01:19:23.433627 7f39c0791a80 Options.compression[4]: Snappy
+2021/03/14-01:19:23.433628 7f39c0791a80 Options.compression[5]: Snappy
+2021/03/14-01:19:23.433628 7f39c0791a80 Options.compression[6]: Snappy
+2021/03/14-01:19:23.433629 7f39c0791a80 Options.bottommost_compression: Disabled
+2021/03/14-01:19:23.433630 7f39c0791a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:19:23.433631 7f39c0791a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:19:23.433631 7f39c0791a80 Options.num_levels: 7
+2021/03/14-01:19:23.433632 7f39c0791a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:19:23.433632 7f39c0791a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:19:23.433633 7f39c0791a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:19:23.433633 7f39c0791a80 Options.compression_opts.level: -1
+2021/03/14-01:19:23.433634 7f39c0791a80 Options.compression_opts.strategy: 0
+2021/03/14-01:19:23.433635 7f39c0791a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:19:23.433635 7f39c0791a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:19:23.433636 7f39c0791a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:19:23.433636 7f39c0791a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:19:23.433637 7f39c0791a80 Options.target_file_size_base: 67108864
+2021/03/14-01:19:23.433637 7f39c0791a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:19:23.433638 7f39c0791a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:19:23.433639 7f39c0791a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:19:23.433639 7f39c0791a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:19:23.433641 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:19:23.433648 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:19:23.433649 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:19:23.433649 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:19:23.433650 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:19:23.433651 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:19:23.433651 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:19:23.433652 7f39c0791a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:19:23.433652 7f39c0791a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:19:23.433653 7f39c0791a80 Options.arena_block_size: 16777216
+2021/03/14-01:19:23.433653 7f39c0791a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:19:23.433654 7f39c0791a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:19:23.433655 7f39c0791a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:19:23.433655 7f39c0791a80 Options.disable_auto_compactions: 0
+2021/03/14-01:19:23.433657 7f39c0791a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:19:23.433657 7f39c0791a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:19:23.433658 7f39c0791a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:19:23.433659 7f39c0791a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:19:23.433659 7f39c0791a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:19:23.433660 7f39c0791a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:19:23.433660 7f39c0791a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:19:23.433661 7f39c0791a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:19:23.433662 7f39c0791a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:19:23.433663 7f39c0791a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:19:23.433663 7f39c0791a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:19:23.433664 7f39c0791a80 Options.table_properties_collectors:
+2021/03/14-01:19:23.433664 7f39c0791a80 Options.inplace_update_support: 0
+2021/03/14-01:19:23.433665 7f39c0791a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:19:23.433665 7f39c0791a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:19:23.433666 7f39c0791a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:19:23.433667 7f39c0791a80 Options.bloom_locality: 0
+2021/03/14-01:19:23.433667 7f39c0791a80 Options.max_successive_merges: 0
+2021/03/14-01:19:23.433668 7f39c0791a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:19:23.433668 7f39c0791a80 Options.paranoid_file_checks: 0
+2021/03/14-01:19:23.433669 7f39c0791a80 Options.force_consistency_checks: 0
+2021/03/14-01:19:23.433669 7f39c0791a80 Options.report_bg_io_stats: 0
+2021/03/14-01:19:23.434046 7f39c0791a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:19:23.434048 7f39c0791a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:19:23.434163 7f39c0791a80 EVENT_LOG_v1 {"time_micros": 1615681163434151, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:19:23.434168 7f39c0791a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:19:24.111325 7f39c0791a80 EVENT_LOG_v1 {"time_micros": 1615681164111321, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681173024502 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681173024502
new file mode 100644
index 0000000..7010d5a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681173024502
@@ -0,0 +1,186 @@
+2021/03/14-01:19:24.123792 7f39c0791a80 RocksDB version: 5.11.3
+2021/03/14-01:19:24.123843 7f39c0791a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:19:24.123845 7f39c0791a80 Compile date Mar 13 2021
+2021/03/14-01:19:24.123847 7f39c0791a80 DB SUMMARY
+2021/03/14-01:19:24.123954 7f39c0791a80 CURRENT file: CURRENT
+2021/03/14-01:19:24.123955 7f39c0791a80 IDENTITY file: IDENTITY
+2021/03/14-01:19:24.123965 7f39c0791a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:19:24.123966 7f39c0791a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:19:24.123967 7f39c0791a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:19:24.123973 7f39c0791a80 Options.error_if_exists: 0
+2021/03/14-01:19:24.123974 7f39c0791a80 Options.create_if_missing: 1
+2021/03/14-01:19:24.123975 7f39c0791a80 Options.paranoid_checks: 1
+2021/03/14-01:19:24.123975 7f39c0791a80 Options.env: 0x7f39c114b080
+2021/03/14-01:19:24.123976 7f39c0791a80 Options.info_log: 0x2ececa0
+2021/03/14-01:19:24.123977 7f39c0791a80 Options.max_file_opening_threads: 16
+2021/03/14-01:19:24.123977 7f39c0791a80 Options.statistics: (nil)
+2021/03/14-01:19:24.123978 7f39c0791a80 Options.use_fsync: 0
+2021/03/14-01:19:24.123978 7f39c0791a80 Options.max_log_file_size: 0
+2021/03/14-01:19:24.123979 7f39c0791a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:19:24.123980 7f39c0791a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:19:24.123980 7f39c0791a80 Options.keep_log_file_num: 1000
+2021/03/14-01:19:24.123981 7f39c0791a80 Options.recycle_log_file_num: 0
+2021/03/14-01:19:24.123982 7f39c0791a80 Options.allow_fallocate: 1
+2021/03/14-01:19:24.123982 7f39c0791a80 Options.allow_mmap_reads: 0
+2021/03/14-01:19:24.123983 7f39c0791a80 Options.allow_mmap_writes: 0
+2021/03/14-01:19:24.123983 7f39c0791a80 Options.use_direct_reads: 0
+2021/03/14-01:19:24.123984 7f39c0791a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:19:24.123984 7f39c0791a80 Options.create_missing_column_families: 0
+2021/03/14-01:19:24.123985 7f39c0791a80 Options.db_log_dir:
+2021/03/14-01:19:24.123985 7f39c0791a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:19:24.123986 7f39c0791a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:19:24.123986 7f39c0791a80 Options.max_subcompactions: 1
+2021/03/14-01:19:24.123987 7f39c0791a80 Options.max_background_flushes: -1
+2021/03/14-01:19:24.123988 7f39c0791a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:19:24.123988 7f39c0791a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:19:24.123989 7f39c0791a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:19:24.123989 7f39c0791a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:19:24.123990 7f39c0791a80 Options.advise_random_on_open: 1
+2021/03/14-01:19:24.123991 7f39c0791a80 Options.db_write_buffer_size: 0
+2021/03/14-01:19:24.123991 7f39c0791a80 Options.write_buffer_manager: 0x2eb6b90
+2021/03/14-01:19:24.123992 7f39c0791a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:19:24.123992 7f39c0791a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:19:24.123993 7f39c0791a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:19:24.123993 7f39c0791a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:19:24.123994 7f39c0791a80 Options.rate_limiter: (nil)
+2021/03/14-01:19:24.123995 7f39c0791a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:19:24.124003 7f39c0791a80 Options.wal_recovery_mode: 2
+2021/03/14-01:19:24.124003 7f39c0791a80 Options.enable_thread_tracking: 0
+2021/03/14-01:19:24.124004 7f39c0791a80 Options.enable_pipelined_write: 0
+2021/03/14-01:19:24.124005 7f39c0791a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:19:24.124005 7f39c0791a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:19:24.124006 7f39c0791a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:19:24.124006 7f39c0791a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:19:24.124007 7f39c0791a80 Options.row_cache: None
+2021/03/14-01:19:24.124007 7f39c0791a80 Options.wal_filter: None
+2021/03/14-01:19:24.124008 7f39c0791a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:19:24.124009 7f39c0791a80 Options.allow_ingest_behind: 0
+2021/03/14-01:19:24.124009 7f39c0791a80 Options.preserve_deletes: 0
+2021/03/14-01:19:24.124010 7f39c0791a80 Options.two_write_queues: 0
+2021/03/14-01:19:24.124010 7f39c0791a80 Options.manual_wal_flush: 0
+2021/03/14-01:19:24.124011 7f39c0791a80 Options.max_background_jobs: 16
+2021/03/14-01:19:24.124012 7f39c0791a80 Options.max_background_compactions: -1
+2021/03/14-01:19:24.124012 7f39c0791a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:19:24.124013 7f39c0791a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:19:24.124014 7f39c0791a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:19:24.124014 7f39c0791a80 Options.max_total_wal_size: 0
+2021/03/14-01:19:24.124015 7f39c0791a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:19:24.124015 7f39c0791a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:19:24.124016 7f39c0791a80 Options.max_open_files: -1
+2021/03/14-01:19:24.124016 7f39c0791a80 Options.bytes_per_sync: 0
+2021/03/14-01:19:24.124017 7f39c0791a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:19:24.124018 7f39c0791a80 Options.compaction_readahead_size: 0
+2021/03/14-01:19:24.124018 7f39c0791a80 Compression algorithms supported:
+2021/03/14-01:19:24.124019 7f39c0791a80 Snappy supported: 1
+2021/03/14-01:19:24.124019 7f39c0791a80 Zlib supported: 1
+2021/03/14-01:19:24.124020 7f39c0791a80 Bzip supported: 1
+2021/03/14-01:19:24.124020 7f39c0791a80 LZ4 supported: 1
+2021/03/14-01:19:24.124021 7f39c0791a80 ZSTDNotFinal supported: 1
+2021/03/14-01:19:24.124025 7f39c0791a80 ZSTD supported: 1
+2021/03/14-01:19:24.124028 7f39c0791a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:19:24.124029 7f39c0791a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:19:24.124115 7f39c0791a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:19:24.124169 7f39c0791a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:19:24.124171 7f39c0791a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:19:24.124172 7f39c0791a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:19:24.124172 7f39c0791a80 Options.compaction_filter: None
+2021/03/14-01:19:24.124173 7f39c0791a80 Options.compaction_filter_factory: None
+2021/03/14-01:19:24.124173 7f39c0791a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:19:24.124174 7f39c0791a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:19:24.124188 7f39c0791a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2ec6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2eabc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:19:24.124188 7f39c0791a80 Options.write_buffer_size: 134217728
+2021/03/14-01:19:24.124189 7f39c0791a80 Options.max_write_buffer_number: 6
+2021/03/14-01:19:24.124190 7f39c0791a80 Options.compression[0]: NoCompression
+2021/03/14-01:19:24.124190 7f39c0791a80 Options.compression[1]: NoCompression
+2021/03/14-01:19:24.124191 7f39c0791a80 Options.compression[2]: Snappy
+2021/03/14-01:19:24.124192 7f39c0791a80 Options.compression[3]: Snappy
+2021/03/14-01:19:24.124192 7f39c0791a80 Options.compression[4]: Snappy
+2021/03/14-01:19:24.124193 7f39c0791a80 Options.compression[5]: Snappy
+2021/03/14-01:19:24.124193 7f39c0791a80 Options.compression[6]: Snappy
+2021/03/14-01:19:24.124194 7f39c0791a80 Options.bottommost_compression: Disabled
+2021/03/14-01:19:24.124195 7f39c0791a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:19:24.124195 7f39c0791a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:19:24.124196 7f39c0791a80 Options.num_levels: 7
+2021/03/14-01:19:24.124197 7f39c0791a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:19:24.124197 7f39c0791a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:19:24.124198 7f39c0791a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:19:24.124198 7f39c0791a80 Options.compression_opts.level: -1
+2021/03/14-01:19:24.124199 7f39c0791a80 Options.compression_opts.strategy: 0
+2021/03/14-01:19:24.124199 7f39c0791a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:19:24.124200 7f39c0791a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:19:24.124201 7f39c0791a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:19:24.124201 7f39c0791a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:19:24.124202 7f39c0791a80 Options.target_file_size_base: 67108864
+2021/03/14-01:19:24.124202 7f39c0791a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:19:24.124203 7f39c0791a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:19:24.124203 7f39c0791a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:19:24.124204 7f39c0791a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:19:24.124206 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:19:24.124213 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:19:24.124214 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:19:24.124214 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:19:24.124215 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:19:24.124215 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:19:24.124216 7f39c0791a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:19:24.124216 7f39c0791a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:19:24.124217 7f39c0791a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:19:24.124218 7f39c0791a80 Options.arena_block_size: 16777216
+2021/03/14-01:19:24.124218 7f39c0791a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:19:24.124219 7f39c0791a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:19:24.124219 7f39c0791a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:19:24.124220 7f39c0791a80 Options.disable_auto_compactions: 0
+2021/03/14-01:19:24.124222 7f39c0791a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:19:24.124222 7f39c0791a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:19:24.124223 7f39c0791a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:19:24.124224 7f39c0791a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:19:24.124224 7f39c0791a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:19:24.124225 7f39c0791a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:19:24.124225 7f39c0791a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:19:24.124226 7f39c0791a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:19:24.124227 7f39c0791a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:19:24.124227 7f39c0791a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:19:24.124228 7f39c0791a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:19:24.124228 7f39c0791a80 Options.table_properties_collectors:
+2021/03/14-01:19:24.124229 7f39c0791a80 Options.inplace_update_support: 0
+2021/03/14-01:19:24.124230 7f39c0791a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:19:24.124230 7f39c0791a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:19:24.124231 7f39c0791a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:19:24.124232 7f39c0791a80 Options.bloom_locality: 0
+2021/03/14-01:19:24.124232 7f39c0791a80 Options.max_successive_merges: 0
+2021/03/14-01:19:24.124233 7f39c0791a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:19:24.124233 7f39c0791a80 Options.paranoid_file_checks: 0
+2021/03/14-01:19:24.124234 7f39c0791a80 Options.force_consistency_checks: 0
+2021/03/14-01:19:24.124234 7f39c0791a80 Options.report_bg_io_stats: 0
+2021/03/14-01:19:24.124656 7f39c0791a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:19:24.124659 7f39c0791a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:19:24.124775 7f39c0791a80 EVENT_LOG_v1 {"time_micros": 1615681164124763, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:19:24.124780 7f39c0791a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:19:24.798385 7f39c0791a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681173707600 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681173707600
new file mode 100644
index 0000000..697f404
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681173707600
@@ -0,0 +1,186 @@
+2021/03/14-01:19:33.025007 7fb39f114a80 RocksDB version: 5.11.3
+2021/03/14-01:19:33.025086 7fb39f114a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:19:33.025088 7fb39f114a80 Compile date Mar 13 2021
+2021/03/14-01:19:33.025095 7fb39f114a80 DB SUMMARY
+2021/03/14-01:19:33.025229 7fb39f114a80 CURRENT file: CURRENT
+2021/03/14-01:19:33.025231 7fb39f114a80 IDENTITY file: IDENTITY
+2021/03/14-01:19:33.025253 7fb39f114a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:19:33.025255 7fb39f114a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:19:33.025256 7fb39f114a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:19:33.025267 7fb39f114a80 Options.error_if_exists: 0
+2021/03/14-01:19:33.025269 7fb39f114a80 Options.create_if_missing: 1
+2021/03/14-01:19:33.025269 7fb39f114a80 Options.paranoid_checks: 1
+2021/03/14-01:19:33.025270 7fb39f114a80 Options.env: 0x7fb39face080
+2021/03/14-01:19:33.025271 7fb39f114a80 Options.info_log: 0x1620ca0
+2021/03/14-01:19:33.025271 7fb39f114a80 Options.max_file_opening_threads: 16
+2021/03/14-01:19:33.025272 7fb39f114a80 Options.statistics: (nil)
+2021/03/14-01:19:33.025273 7fb39f114a80 Options.use_fsync: 0
+2021/03/14-01:19:33.025274 7fb39f114a80 Options.max_log_file_size: 0
+2021/03/14-01:19:33.025275 7fb39f114a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:19:33.025275 7fb39f114a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:19:33.025276 7fb39f114a80 Options.keep_log_file_num: 1000
+2021/03/14-01:19:33.025277 7fb39f114a80 Options.recycle_log_file_num: 0
+2021/03/14-01:19:33.025277 7fb39f114a80 Options.allow_fallocate: 1
+2021/03/14-01:19:33.025278 7fb39f114a80 Options.allow_mmap_reads: 0
+2021/03/14-01:19:33.025279 7fb39f114a80 Options.allow_mmap_writes: 0
+2021/03/14-01:19:33.025279 7fb39f114a80 Options.use_direct_reads: 0
+2021/03/14-01:19:33.025280 7fb39f114a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:19:33.025281 7fb39f114a80 Options.create_missing_column_families: 0
+2021/03/14-01:19:33.025281 7fb39f114a80 Options.db_log_dir:
+2021/03/14-01:19:33.025282 7fb39f114a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:19:33.025283 7fb39f114a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:19:33.025283 7fb39f114a80 Options.max_subcompactions: 1
+2021/03/14-01:19:33.025284 7fb39f114a80 Options.max_background_flushes: -1
+2021/03/14-01:19:33.025285 7fb39f114a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:19:33.025286 7fb39f114a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:19:33.025286 7fb39f114a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:19:33.025287 7fb39f114a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:19:33.025288 7fb39f114a80 Options.advise_random_on_open: 1
+2021/03/14-01:19:33.025288 7fb39f114a80 Options.db_write_buffer_size: 0
+2021/03/14-01:19:33.025289 7fb39f114a80 Options.write_buffer_manager: 0x1608b90
+2021/03/14-01:19:33.025290 7fb39f114a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:19:33.025290 7fb39f114a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:19:33.025291 7fb39f114a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:19:33.025292 7fb39f114a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:19:33.025292 7fb39f114a80 Options.rate_limiter: (nil)
+2021/03/14-01:19:33.025294 7fb39f114a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:19:33.025314 7fb39f114a80 Options.wal_recovery_mode: 2
+2021/03/14-01:19:33.025315 7fb39f114a80 Options.enable_thread_tracking: 0
+2021/03/14-01:19:33.025316 7fb39f114a80 Options.enable_pipelined_write: 0
+2021/03/14-01:19:33.025316 7fb39f114a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:19:33.025317 7fb39f114a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:19:33.025318 7fb39f114a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:19:33.025319 7fb39f114a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:19:33.025319 7fb39f114a80 Options.row_cache: None
+2021/03/14-01:19:33.025320 7fb39f114a80 Options.wal_filter: None
+2021/03/14-01:19:33.025321 7fb39f114a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:19:33.025322 7fb39f114a80 Options.allow_ingest_behind: 0
+2021/03/14-01:19:33.025322 7fb39f114a80 Options.preserve_deletes: 0
+2021/03/14-01:19:33.025323 7fb39f114a80 Options.two_write_queues: 0
+2021/03/14-01:19:33.025323 7fb39f114a80 Options.manual_wal_flush: 0
+2021/03/14-01:19:33.025325 7fb39f114a80 Options.max_background_jobs: 16
+2021/03/14-01:19:33.025326 7fb39f114a80 Options.max_background_compactions: -1
+2021/03/14-01:19:33.025327 7fb39f114a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:19:33.025327 7fb39f114a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:19:33.025328 7fb39f114a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:19:33.025329 7fb39f114a80 Options.max_total_wal_size: 0
+2021/03/14-01:19:33.025329 7fb39f114a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:19:33.025330 7fb39f114a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:19:33.025331 7fb39f114a80 Options.max_open_files: -1
+2021/03/14-01:19:33.025331 7fb39f114a80 Options.bytes_per_sync: 0
+2021/03/14-01:19:33.025332 7fb39f114a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:19:33.025333 7fb39f114a80 Options.compaction_readahead_size: 0
+2021/03/14-01:19:33.025333 7fb39f114a80 Compression algorithms supported:
+2021/03/14-01:19:33.025334 7fb39f114a80 Snappy supported: 1
+2021/03/14-01:19:33.025335 7fb39f114a80 Zlib supported: 1
+2021/03/14-01:19:33.025336 7fb39f114a80 Bzip supported: 1
+2021/03/14-01:19:33.025336 7fb39f114a80 LZ4 supported: 1
+2021/03/14-01:19:33.025337 7fb39f114a80 ZSTDNotFinal supported: 1
+2021/03/14-01:19:33.025343 7fb39f114a80 ZSTD supported: 1
+2021/03/14-01:19:33.025347 7fb39f114a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:19:33.025349 7fb39f114a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:19:33.025492 7fb39f114a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:19:33.025563 7fb39f114a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:19:33.025565 7fb39f114a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:19:33.025566 7fb39f114a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:19:33.025567 7fb39f114a80 Options.compaction_filter: None
+2021/03/14-01:19:33.025568 7fb39f114a80 Options.compaction_filter_factory: None
+2021/03/14-01:19:33.025569 7fb39f114a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:19:33.025570 7fb39f114a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:19:33.025589 7fb39f114a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1618520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x15fdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:19:33.025590 7fb39f114a80 Options.write_buffer_size: 134217728
+2021/03/14-01:19:33.025591 7fb39f114a80 Options.max_write_buffer_number: 6
+2021/03/14-01:19:33.025592 7fb39f114a80 Options.compression[0]: NoCompression
+2021/03/14-01:19:33.025592 7fb39f114a80 Options.compression[1]: NoCompression
+2021/03/14-01:19:33.025593 7fb39f114a80 Options.compression[2]: Snappy
+2021/03/14-01:19:33.025594 7fb39f114a80 Options.compression[3]: Snappy
+2021/03/14-01:19:33.025595 7fb39f114a80 Options.compression[4]: Snappy
+2021/03/14-01:19:33.025595 7fb39f114a80 Options.compression[5]: Snappy
+2021/03/14-01:19:33.025596 7fb39f114a80 Options.compression[6]: Snappy
+2021/03/14-01:19:33.025597 7fb39f114a80 Options.bottommost_compression: Disabled
+2021/03/14-01:19:33.025598 7fb39f114a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:19:33.025599 7fb39f114a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:19:33.025599 7fb39f114a80 Options.num_levels: 7
+2021/03/14-01:19:33.025600 7fb39f114a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:19:33.025601 7fb39f114a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:19:33.025601 7fb39f114a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:19:33.025602 7fb39f114a80 Options.compression_opts.level: -1
+2021/03/14-01:19:33.025603 7fb39f114a80 Options.compression_opts.strategy: 0
+2021/03/14-01:19:33.025603 7fb39f114a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:19:33.025604 7fb39f114a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:19:33.025605 7fb39f114a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:19:33.025605 7fb39f114a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:19:33.025606 7fb39f114a80 Options.target_file_size_base: 67108864
+2021/03/14-01:19:33.025607 7fb39f114a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:19:33.025608 7fb39f114a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:19:33.025608 7fb39f114a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:19:33.025609 7fb39f114a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:19:33.025611 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:19:33.025620 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:19:33.025621 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:19:33.025622 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:19:33.025622 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:19:33.025623 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:19:33.025624 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:19:33.025624 7fb39f114a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:19:33.025625 7fb39f114a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:19:33.025626 7fb39f114a80 Options.arena_block_size: 16777216
+2021/03/14-01:19:33.025626 7fb39f114a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:19:33.025627 7fb39f114a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:19:33.025628 7fb39f114a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:19:33.025629 7fb39f114a80 Options.disable_auto_compactions: 0
+2021/03/14-01:19:33.025631 7fb39f114a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:19:33.025631 7fb39f114a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:19:33.025632 7fb39f114a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:19:33.025633 7fb39f114a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:19:33.025633 7fb39f114a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:19:33.025634 7fb39f114a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:19:33.025635 7fb39f114a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:19:33.025636 7fb39f114a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:19:33.025637 7fb39f114a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:19:33.025638 7fb39f114a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:19:33.025638 7fb39f114a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:19:33.025639 7fb39f114a80 Options.table_properties_collectors:
+2021/03/14-01:19:33.025640 7fb39f114a80 Options.inplace_update_support: 0
+2021/03/14-01:19:33.025640 7fb39f114a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:19:33.025641 7fb39f114a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:19:33.025642 7fb39f114a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:19:33.025643 7fb39f114a80 Options.bloom_locality: 0
+2021/03/14-01:19:33.025643 7fb39f114a80 Options.max_successive_merges: 0
+2021/03/14-01:19:33.025644 7fb39f114a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:19:33.025645 7fb39f114a80 Options.paranoid_file_checks: 0
+2021/03/14-01:19:33.025645 7fb39f114a80 Options.force_consistency_checks: 0
+2021/03/14-01:19:33.025646 7fb39f114a80 Options.report_bg_io_stats: 0
+2021/03/14-01:19:33.026154 7fb39f114a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:19:33.026157 7fb39f114a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:19:33.026315 7fb39f114a80 EVENT_LOG_v1 {"time_micros": 1615681173026301, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:19:33.026323 7fb39f114a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:19:33.695716 7fb39f114a80 EVENT_LOG_v1 {"time_micros": 1615681173695712, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681174403547 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681174403547
new file mode 100644
index 0000000..a724e04
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681174403547
@@ -0,0 +1,186 @@
+2021/03/14-01:19:33.707976 7fb39f114a80 RocksDB version: 5.11.3
+2021/03/14-01:19:33.708032 7fb39f114a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:19:33.708034 7fb39f114a80 Compile date Mar 13 2021
+2021/03/14-01:19:33.708039 7fb39f114a80 DB SUMMARY
+2021/03/14-01:19:33.708146 7fb39f114a80 CURRENT file: CURRENT
+2021/03/14-01:19:33.708147 7fb39f114a80 IDENTITY file: IDENTITY
+2021/03/14-01:19:33.708157 7fb39f114a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:19:33.708158 7fb39f114a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:19:33.708159 7fb39f114a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:19:33.708166 7fb39f114a80 Options.error_if_exists: 0
+2021/03/14-01:19:33.708166 7fb39f114a80 Options.create_if_missing: 1
+2021/03/14-01:19:33.708167 7fb39f114a80 Options.paranoid_checks: 1
+2021/03/14-01:19:33.708167 7fb39f114a80 Options.env: 0x7fb39face080
+2021/03/14-01:19:33.708168 7fb39f114a80 Options.info_log: 0x1620ca0
+2021/03/14-01:19:33.708169 7fb39f114a80 Options.max_file_opening_threads: 16
+2021/03/14-01:19:33.708169 7fb39f114a80 Options.statistics: (nil)
+2021/03/14-01:19:33.708170 7fb39f114a80 Options.use_fsync: 0
+2021/03/14-01:19:33.708171 7fb39f114a80 Options.max_log_file_size: 0
+2021/03/14-01:19:33.708171 7fb39f114a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:19:33.708172 7fb39f114a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:19:33.708172 7fb39f114a80 Options.keep_log_file_num: 1000
+2021/03/14-01:19:33.708173 7fb39f114a80 Options.recycle_log_file_num: 0
+2021/03/14-01:19:33.708174 7fb39f114a80 Options.allow_fallocate: 1
+2021/03/14-01:19:33.708174 7fb39f114a80 Options.allow_mmap_reads: 0
+2021/03/14-01:19:33.708175 7fb39f114a80 Options.allow_mmap_writes: 0
+2021/03/14-01:19:33.708175 7fb39f114a80 Options.use_direct_reads: 0
+2021/03/14-01:19:33.708176 7fb39f114a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:19:33.708176 7fb39f114a80 Options.create_missing_column_families: 0
+2021/03/14-01:19:33.708177 7fb39f114a80 Options.db_log_dir:
+2021/03/14-01:19:33.708177 7fb39f114a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:19:33.708178 7fb39f114a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:19:33.708178 7fb39f114a80 Options.max_subcompactions: 1
+2021/03/14-01:19:33.708179 7fb39f114a80 Options.max_background_flushes: -1
+2021/03/14-01:19:33.708180 7fb39f114a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:19:33.708180 7fb39f114a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:19:33.708181 7fb39f114a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:19:33.708181 7fb39f114a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:19:33.708182 7fb39f114a80 Options.advise_random_on_open: 1
+2021/03/14-01:19:33.708182 7fb39f114a80 Options.db_write_buffer_size: 0
+2021/03/14-01:19:33.708183 7fb39f114a80 Options.write_buffer_manager: 0x1608b90
+2021/03/14-01:19:33.708184 7fb39f114a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:19:33.708184 7fb39f114a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:19:33.708185 7fb39f114a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:19:33.708185 7fb39f114a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:19:33.708186 7fb39f114a80 Options.rate_limiter: (nil)
+2021/03/14-01:19:33.708187 7fb39f114a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:19:33.708195 7fb39f114a80 Options.wal_recovery_mode: 2
+2021/03/14-01:19:33.708196 7fb39f114a80 Options.enable_thread_tracking: 0
+2021/03/14-01:19:33.708196 7fb39f114a80 Options.enable_pipelined_write: 0
+2021/03/14-01:19:33.708197 7fb39f114a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:19:33.708197 7fb39f114a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:19:33.708198 7fb39f114a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:19:33.708199 7fb39f114a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:19:33.708199 7fb39f114a80 Options.row_cache: None
+2021/03/14-01:19:33.708200 7fb39f114a80 Options.wal_filter: None
+2021/03/14-01:19:33.708200 7fb39f114a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:19:33.708201 7fb39f114a80 Options.allow_ingest_behind: 0
+2021/03/14-01:19:33.708201 7fb39f114a80 Options.preserve_deletes: 0
+2021/03/14-01:19:33.708202 7fb39f114a80 Options.two_write_queues: 0
+2021/03/14-01:19:33.708202 7fb39f114a80 Options.manual_wal_flush: 0
+2021/03/14-01:19:33.708204 7fb39f114a80 Options.max_background_jobs: 16
+2021/03/14-01:19:33.708204 7fb39f114a80 Options.max_background_compactions: -1
+2021/03/14-01:19:33.708205 7fb39f114a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:19:33.708205 7fb39f114a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:19:33.708206 7fb39f114a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:19:33.708206 7fb39f114a80 Options.max_total_wal_size: 0
+2021/03/14-01:19:33.708207 7fb39f114a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:19:33.708208 7fb39f114a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:19:33.708208 7fb39f114a80 Options.max_open_files: -1
+2021/03/14-01:19:33.708209 7fb39f114a80 Options.bytes_per_sync: 0
+2021/03/14-01:19:33.708209 7fb39f114a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:19:33.708210 7fb39f114a80 Options.compaction_readahead_size: 0
+2021/03/14-01:19:33.708210 7fb39f114a80 Compression algorithms supported:
+2021/03/14-01:19:33.708211 7fb39f114a80 Snappy supported: 1
+2021/03/14-01:19:33.708212 7fb39f114a80 Zlib supported: 1
+2021/03/14-01:19:33.708212 7fb39f114a80 Bzip supported: 1
+2021/03/14-01:19:33.708213 7fb39f114a80 LZ4 supported: 1
+2021/03/14-01:19:33.708213 7fb39f114a80 ZSTDNotFinal supported: 1
+2021/03/14-01:19:33.708217 7fb39f114a80 ZSTD supported: 1
+2021/03/14-01:19:33.708220 7fb39f114a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:19:33.708221 7fb39f114a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:19:33.708323 7fb39f114a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:19:33.708378 7fb39f114a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:19:33.708379 7fb39f114a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:19:33.708380 7fb39f114a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:19:33.708381 7fb39f114a80 Options.compaction_filter: None
+2021/03/14-01:19:33.708381 7fb39f114a80 Options.compaction_filter_factory: None
+2021/03/14-01:19:33.708382 7fb39f114a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:19:33.708383 7fb39f114a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:19:33.708398 7fb39f114a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1618520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x15fdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:19:33.708399 7fb39f114a80 Options.write_buffer_size: 134217728
+2021/03/14-01:19:33.708399 7fb39f114a80 Options.max_write_buffer_number: 6
+2021/03/14-01:19:33.708400 7fb39f114a80 Options.compression[0]: NoCompression
+2021/03/14-01:19:33.708401 7fb39f114a80 Options.compression[1]: NoCompression
+2021/03/14-01:19:33.708401 7fb39f114a80 Options.compression[2]: Snappy
+2021/03/14-01:19:33.708402 7fb39f114a80 Options.compression[3]: Snappy
+2021/03/14-01:19:33.708402 7fb39f114a80 Options.compression[4]: Snappy
+2021/03/14-01:19:33.708403 7fb39f114a80 Options.compression[5]: Snappy
+2021/03/14-01:19:33.708404 7fb39f114a80 Options.compression[6]: Snappy
+2021/03/14-01:19:33.708404 7fb39f114a80 Options.bottommost_compression: Disabled
+2021/03/14-01:19:33.708405 7fb39f114a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:19:33.708406 7fb39f114a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:19:33.708406 7fb39f114a80 Options.num_levels: 7
+2021/03/14-01:19:33.708407 7fb39f114a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:19:33.708407 7fb39f114a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:19:33.708408 7fb39f114a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:19:33.708408 7fb39f114a80 Options.compression_opts.level: -1
+2021/03/14-01:19:33.708409 7fb39f114a80 Options.compression_opts.strategy: 0
+2021/03/14-01:19:33.708410 7fb39f114a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:19:33.708410 7fb39f114a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:19:33.708411 7fb39f114a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:19:33.708411 7fb39f114a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:19:33.708412 7fb39f114a80 Options.target_file_size_base: 67108864
+2021/03/14-01:19:33.708412 7fb39f114a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:19:33.708413 7fb39f114a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:19:33.708414 7fb39f114a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:19:33.708414 7fb39f114a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:19:33.708416 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:19:33.708424 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:19:33.708425 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:19:33.708426 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:19:33.708426 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:19:33.708427 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:19:33.708427 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:19:33.708428 7fb39f114a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:19:33.708428 7fb39f114a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:19:33.708429 7fb39f114a80 Options.arena_block_size: 16777216
+2021/03/14-01:19:33.708430 7fb39f114a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:19:33.708430 7fb39f114a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:19:33.708431 7fb39f114a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:19:33.708431 7fb39f114a80 Options.disable_auto_compactions: 0
+2021/03/14-01:19:33.708433 7fb39f114a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:19:33.708434 7fb39f114a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:19:33.708434 7fb39f114a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:19:33.708435 7fb39f114a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:19:33.708435 7fb39f114a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:19:33.708436 7fb39f114a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:19:33.708437 7fb39f114a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:19:33.708438 7fb39f114a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:19:33.708438 7fb39f114a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:19:33.708439 7fb39f114a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:19:33.708439 7fb39f114a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:19:33.708440 7fb39f114a80 Options.table_properties_collectors:
+2021/03/14-01:19:33.708440 7fb39f114a80 Options.inplace_update_support: 0
+2021/03/14-01:19:33.708441 7fb39f114a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:19:33.708441 7fb39f114a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:19:33.708442 7fb39f114a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:19:33.708443 7fb39f114a80 Options.bloom_locality: 0
+2021/03/14-01:19:33.708443 7fb39f114a80 Options.max_successive_merges: 0
+2021/03/14-01:19:33.708444 7fb39f114a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:19:33.708445 7fb39f114a80 Options.paranoid_file_checks: 0
+2021/03/14-01:19:33.708445 7fb39f114a80 Options.force_consistency_checks: 0
+2021/03/14-01:19:33.708446 7fb39f114a80 Options.report_bg_io_stats: 0
+2021/03/14-01:19:33.708828 7fb39f114a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:19:33.708830 7fb39f114a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:19:33.708945 7fb39f114a80 EVENT_LOG_v1 {"time_micros": 1615681173708935, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:19:33.708950 7fb39f114a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:19:34.391305 7fb39f114a80 EVENT_LOG_v1 {"time_micros": 1615681174391302, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681175093452 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681175093452
new file mode 100644
index 0000000..1cb743b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681175093452
@@ -0,0 +1,186 @@
+2021/03/14-01:19:34.403917 7fb39f114a80 RocksDB version: 5.11.3
+2021/03/14-01:19:34.403972 7fb39f114a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:19:34.403974 7fb39f114a80 Compile date Mar 13 2021
+2021/03/14-01:19:34.403978 7fb39f114a80 DB SUMMARY
+2021/03/14-01:19:34.404088 7fb39f114a80 CURRENT file: CURRENT
+2021/03/14-01:19:34.404089 7fb39f114a80 IDENTITY file: IDENTITY
+2021/03/14-01:19:34.404099 7fb39f114a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:19:34.404101 7fb39f114a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:19:34.404102 7fb39f114a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:19:34.404108 7fb39f114a80 Options.error_if_exists: 0
+2021/03/14-01:19:34.404109 7fb39f114a80 Options.create_if_missing: 1
+2021/03/14-01:19:34.404109 7fb39f114a80 Options.paranoid_checks: 1
+2021/03/14-01:19:34.404110 7fb39f114a80 Options.env: 0x7fb39face080
+2021/03/14-01:19:34.404111 7fb39f114a80 Options.info_log: 0x1620ca0
+2021/03/14-01:19:34.404111 7fb39f114a80 Options.max_file_opening_threads: 16
+2021/03/14-01:19:34.404112 7fb39f114a80 Options.statistics: (nil)
+2021/03/14-01:19:34.404113 7fb39f114a80 Options.use_fsync: 0
+2021/03/14-01:19:34.404113 7fb39f114a80 Options.max_log_file_size: 0
+2021/03/14-01:19:34.404114 7fb39f114a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:19:34.404114 7fb39f114a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:19:34.404115 7fb39f114a80 Options.keep_log_file_num: 1000
+2021/03/14-01:19:34.404115 7fb39f114a80 Options.recycle_log_file_num: 0
+2021/03/14-01:19:34.404116 7fb39f114a80 Options.allow_fallocate: 1
+2021/03/14-01:19:34.404117 7fb39f114a80 Options.allow_mmap_reads: 0
+2021/03/14-01:19:34.404117 7fb39f114a80 Options.allow_mmap_writes: 0
+2021/03/14-01:19:34.404118 7fb39f114a80 Options.use_direct_reads: 0
+2021/03/14-01:19:34.404118 7fb39f114a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:19:34.404119 7fb39f114a80 Options.create_missing_column_families: 0
+2021/03/14-01:19:34.404119 7fb39f114a80 Options.db_log_dir:
+2021/03/14-01:19:34.404120 7fb39f114a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:19:34.404120 7fb39f114a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:19:34.404121 7fb39f114a80 Options.max_subcompactions: 1
+2021/03/14-01:19:34.404122 7fb39f114a80 Options.max_background_flushes: -1
+2021/03/14-01:19:34.404122 7fb39f114a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:19:34.404123 7fb39f114a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:19:34.404123 7fb39f114a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:19:34.404124 7fb39f114a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:19:34.404125 7fb39f114a80 Options.advise_random_on_open: 1
+2021/03/14-01:19:34.404125 7fb39f114a80 Options.db_write_buffer_size: 0
+2021/03/14-01:19:34.404126 7fb39f114a80 Options.write_buffer_manager: 0x1608b90
+2021/03/14-01:19:34.404126 7fb39f114a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:19:34.404127 7fb39f114a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:19:34.404127 7fb39f114a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:19:34.404128 7fb39f114a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:19:34.404128 7fb39f114a80 Options.rate_limiter: (nil)
+2021/03/14-01:19:34.404130 7fb39f114a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:19:34.404138 7fb39f114a80 Options.wal_recovery_mode: 2
+2021/03/14-01:19:34.404138 7fb39f114a80 Options.enable_thread_tracking: 0
+2021/03/14-01:19:34.404139 7fb39f114a80 Options.enable_pipelined_write: 0
+2021/03/14-01:19:34.404140 7fb39f114a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:19:34.404140 7fb39f114a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:19:34.404141 7fb39f114a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:19:34.404141 7fb39f114a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:19:34.404142 7fb39f114a80 Options.row_cache: None
+2021/03/14-01:19:34.404142 7fb39f114a80 Options.wal_filter: None
+2021/03/14-01:19:34.404143 7fb39f114a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:19:34.404144 7fb39f114a80 Options.allow_ingest_behind: 0
+2021/03/14-01:19:34.404144 7fb39f114a80 Options.preserve_deletes: 0
+2021/03/14-01:19:34.404145 7fb39f114a80 Options.two_write_queues: 0
+2021/03/14-01:19:34.404145 7fb39f114a80 Options.manual_wal_flush: 0
+2021/03/14-01:19:34.404146 7fb39f114a80 Options.max_background_jobs: 16
+2021/03/14-01:19:34.404147 7fb39f114a80 Options.max_background_compactions: -1
+2021/03/14-01:19:34.404148 7fb39f114a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:19:34.404148 7fb39f114a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:19:34.404149 7fb39f114a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:19:34.404149 7fb39f114a80 Options.max_total_wal_size: 0
+2021/03/14-01:19:34.404150 7fb39f114a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:19:34.404150 7fb39f114a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:19:34.404151 7fb39f114a80 Options.max_open_files: -1
+2021/03/14-01:19:34.404152 7fb39f114a80 Options.bytes_per_sync: 0
+2021/03/14-01:19:34.404152 7fb39f114a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:19:34.404153 7fb39f114a80 Options.compaction_readahead_size: 0
+2021/03/14-01:19:34.404153 7fb39f114a80 Compression algorithms supported:
+2021/03/14-01:19:34.404154 7fb39f114a80 Snappy supported: 1
+2021/03/14-01:19:34.404155 7fb39f114a80 Zlib supported: 1
+2021/03/14-01:19:34.404155 7fb39f114a80 Bzip supported: 1
+2021/03/14-01:19:34.404156 7fb39f114a80 LZ4 supported: 1
+2021/03/14-01:19:34.404156 7fb39f114a80 ZSTDNotFinal supported: 1
+2021/03/14-01:19:34.404160 7fb39f114a80 ZSTD supported: 1
+2021/03/14-01:19:34.404163 7fb39f114a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:19:34.404165 7fb39f114a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:19:34.404267 7fb39f114a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:19:34.404324 7fb39f114a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:19:34.404325 7fb39f114a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:19:34.404326 7fb39f114a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:19:34.404327 7fb39f114a80 Options.compaction_filter: None
+2021/03/14-01:19:34.404327 7fb39f114a80 Options.compaction_filter_factory: None
+2021/03/14-01:19:34.404328 7fb39f114a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:19:34.404329 7fb39f114a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:19:34.404344 7fb39f114a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1618520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x15fdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:19:34.404345 7fb39f114a80 Options.write_buffer_size: 134217728
+2021/03/14-01:19:34.404346 7fb39f114a80 Options.max_write_buffer_number: 6
+2021/03/14-01:19:34.404346 7fb39f114a80 Options.compression[0]: NoCompression
+2021/03/14-01:19:34.404347 7fb39f114a80 Options.compression[1]: NoCompression
+2021/03/14-01:19:34.404348 7fb39f114a80 Options.compression[2]: Snappy
+2021/03/14-01:19:34.404348 7fb39f114a80 Options.compression[3]: Snappy
+2021/03/14-01:19:34.404349 7fb39f114a80 Options.compression[4]: Snappy
+2021/03/14-01:19:34.404349 7fb39f114a80 Options.compression[5]: Snappy
+2021/03/14-01:19:34.404350 7fb39f114a80 Options.compression[6]: Snappy
+2021/03/14-01:19:34.404351 7fb39f114a80 Options.bottommost_compression: Disabled
+2021/03/14-01:19:34.404351 7fb39f114a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:19:34.404352 7fb39f114a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:19:34.404353 7fb39f114a80 Options.num_levels: 7
+2021/03/14-01:19:34.404353 7fb39f114a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:19:34.404354 7fb39f114a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:19:34.404354 7fb39f114a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:19:34.404355 7fb39f114a80 Options.compression_opts.level: -1
+2021/03/14-01:19:34.404356 7fb39f114a80 Options.compression_opts.strategy: 0
+2021/03/14-01:19:34.404356 7fb39f114a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:19:34.404357 7fb39f114a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:19:34.404357 7fb39f114a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:19:34.404358 7fb39f114a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:19:34.404358 7fb39f114a80 Options.target_file_size_base: 67108864
+2021/03/14-01:19:34.404359 7fb39f114a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:19:34.404360 7fb39f114a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:19:34.404360 7fb39f114a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:19:34.404361 7fb39f114a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:19:34.404362 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:19:34.404371 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:19:34.404372 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:19:34.404373 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:19:34.404373 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:19:34.404374 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:19:34.404374 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:19:34.404375 7fb39f114a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:19:34.404375 7fb39f114a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:19:34.404376 7fb39f114a80 Options.arena_block_size: 16777216
+2021/03/14-01:19:34.404376 7fb39f114a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:19:34.404377 7fb39f114a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:19:34.404378 7fb39f114a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:19:34.404378 7fb39f114a80 Options.disable_auto_compactions: 0
+2021/03/14-01:19:34.404380 7fb39f114a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:19:34.404380 7fb39f114a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:19:34.404381 7fb39f114a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:19:34.404382 7fb39f114a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:19:34.404382 7fb39f114a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:19:34.404383 7fb39f114a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:19:34.404383 7fb39f114a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:19:34.404384 7fb39f114a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:19:34.404385 7fb39f114a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:19:34.404385 7fb39f114a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:19:34.404386 7fb39f114a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:19:34.404387 7fb39f114a80 Options.table_properties_collectors:
+2021/03/14-01:19:34.404387 7fb39f114a80 Options.inplace_update_support: 0
+2021/03/14-01:19:34.404388 7fb39f114a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:19:34.404388 7fb39f114a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:19:34.404389 7fb39f114a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:19:34.404390 7fb39f114a80 Options.bloom_locality: 0
+2021/03/14-01:19:34.404390 7fb39f114a80 Options.max_successive_merges: 0
+2021/03/14-01:19:34.404391 7fb39f114a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:19:34.404391 7fb39f114a80 Options.paranoid_file_checks: 0
+2021/03/14-01:19:34.404392 7fb39f114a80 Options.force_consistency_checks: 0
+2021/03/14-01:19:34.404392 7fb39f114a80 Options.report_bg_io_stats: 0
+2021/03/14-01:19:34.404775 7fb39f114a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:19:34.404778 7fb39f114a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:19:34.404891 7fb39f114a80 EVENT_LOG_v1 {"time_micros": 1615681174404881, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:19:34.404897 7fb39f114a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:19:35.081415 7fb39f114a80 EVENT_LOG_v1 {"time_micros": 1615681175081412, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681203569382 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681203569382
new file mode 100644
index 0000000..edcc12f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681203569382
@@ -0,0 +1,186 @@
+2021/03/14-01:19:35.093828 7fb39f114a80 RocksDB version: 5.11.3
+2021/03/14-01:19:35.093885 7fb39f114a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:19:35.093887 7fb39f114a80 Compile date Mar 13 2021
+2021/03/14-01:19:35.093891 7fb39f114a80 DB SUMMARY
+2021/03/14-01:19:35.093999 7fb39f114a80 CURRENT file: CURRENT
+2021/03/14-01:19:35.094000 7fb39f114a80 IDENTITY file: IDENTITY
+2021/03/14-01:19:35.094010 7fb39f114a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:19:35.094011 7fb39f114a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:19:35.094012 7fb39f114a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:19:35.094019 7fb39f114a80 Options.error_if_exists: 0
+2021/03/14-01:19:35.094019 7fb39f114a80 Options.create_if_missing: 1
+2021/03/14-01:19:35.094020 7fb39f114a80 Options.paranoid_checks: 1
+2021/03/14-01:19:35.094021 7fb39f114a80 Options.env: 0x7fb39face080
+2021/03/14-01:19:35.094021 7fb39f114a80 Options.info_log: 0x1620ca0
+2021/03/14-01:19:35.094022 7fb39f114a80 Options.max_file_opening_threads: 16
+2021/03/14-01:19:35.094022 7fb39f114a80 Options.statistics: (nil)
+2021/03/14-01:19:35.094023 7fb39f114a80 Options.use_fsync: 0
+2021/03/14-01:19:35.094024 7fb39f114a80 Options.max_log_file_size: 0
+2021/03/14-01:19:35.094024 7fb39f114a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:19:35.094025 7fb39f114a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:19:35.094025 7fb39f114a80 Options.keep_log_file_num: 1000
+2021/03/14-01:19:35.094026 7fb39f114a80 Options.recycle_log_file_num: 0
+2021/03/14-01:19:35.094027 7fb39f114a80 Options.allow_fallocate: 1
+2021/03/14-01:19:35.094027 7fb39f114a80 Options.allow_mmap_reads: 0
+2021/03/14-01:19:35.094028 7fb39f114a80 Options.allow_mmap_writes: 0
+2021/03/14-01:19:35.094028 7fb39f114a80 Options.use_direct_reads: 0
+2021/03/14-01:19:35.094029 7fb39f114a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:19:35.094029 7fb39f114a80 Options.create_missing_column_families: 0
+2021/03/14-01:19:35.094030 7fb39f114a80 Options.db_log_dir:
+2021/03/14-01:19:35.094031 7fb39f114a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:19:35.094031 7fb39f114a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:19:35.094032 7fb39f114a80 Options.max_subcompactions: 1
+2021/03/14-01:19:35.094032 7fb39f114a80 Options.max_background_flushes: -1
+2021/03/14-01:19:35.094033 7fb39f114a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:19:35.094033 7fb39f114a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:19:35.094034 7fb39f114a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:19:35.094035 7fb39f114a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:19:35.094035 7fb39f114a80 Options.advise_random_on_open: 1
+2021/03/14-01:19:35.094036 7fb39f114a80 Options.db_write_buffer_size: 0
+2021/03/14-01:19:35.094036 7fb39f114a80 Options.write_buffer_manager: 0x1608b90
+2021/03/14-01:19:35.094037 7fb39f114a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:19:35.094037 7fb39f114a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:19:35.094038 7fb39f114a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:19:35.094039 7fb39f114a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:19:35.094039 7fb39f114a80 Options.rate_limiter: (nil)
+2021/03/14-01:19:35.094040 7fb39f114a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:19:35.094048 7fb39f114a80 Options.wal_recovery_mode: 2
+2021/03/14-01:19:35.094049 7fb39f114a80 Options.enable_thread_tracking: 0
+2021/03/14-01:19:35.094049 7fb39f114a80 Options.enable_pipelined_write: 0
+2021/03/14-01:19:35.094050 7fb39f114a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:19:35.094051 7fb39f114a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:19:35.094051 7fb39f114a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:19:35.094052 7fb39f114a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:19:35.094052 7fb39f114a80 Options.row_cache: None
+2021/03/14-01:19:35.094053 7fb39f114a80 Options.wal_filter: None
+2021/03/14-01:19:35.094054 7fb39f114a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:19:35.094054 7fb39f114a80 Options.allow_ingest_behind: 0
+2021/03/14-01:19:35.094055 7fb39f114a80 Options.preserve_deletes: 0
+2021/03/14-01:19:35.094055 7fb39f114a80 Options.two_write_queues: 0
+2021/03/14-01:19:35.094056 7fb39f114a80 Options.manual_wal_flush: 0
+2021/03/14-01:19:35.094057 7fb39f114a80 Options.max_background_jobs: 16
+2021/03/14-01:19:35.094057 7fb39f114a80 Options.max_background_compactions: -1
+2021/03/14-01:19:35.094058 7fb39f114a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:19:35.094059 7fb39f114a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:19:35.094059 7fb39f114a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:19:35.094060 7fb39f114a80 Options.max_total_wal_size: 0
+2021/03/14-01:19:35.094060 7fb39f114a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:19:35.094061 7fb39f114a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:19:35.094062 7fb39f114a80 Options.max_open_files: -1
+2021/03/14-01:19:35.094062 7fb39f114a80 Options.bytes_per_sync: 0
+2021/03/14-01:19:35.094063 7fb39f114a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:19:35.094063 7fb39f114a80 Options.compaction_readahead_size: 0
+2021/03/14-01:19:35.094064 7fb39f114a80 Compression algorithms supported:
+2021/03/14-01:19:35.094064 7fb39f114a80 Snappy supported: 1
+2021/03/14-01:19:35.094065 7fb39f114a80 Zlib supported: 1
+2021/03/14-01:19:35.094065 7fb39f114a80 Bzip supported: 1
+2021/03/14-01:19:35.094066 7fb39f114a80 LZ4 supported: 1
+2021/03/14-01:19:35.094067 7fb39f114a80 ZSTDNotFinal supported: 1
+2021/03/14-01:19:35.094070 7fb39f114a80 ZSTD supported: 1
+2021/03/14-01:19:35.094073 7fb39f114a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:19:35.094075 7fb39f114a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:19:35.094161 7fb39f114a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:19:35.094214 7fb39f114a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:19:35.094216 7fb39f114a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:19:35.094217 7fb39f114a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:19:35.094218 7fb39f114a80 Options.compaction_filter: None
+2021/03/14-01:19:35.094218 7fb39f114a80 Options.compaction_filter_factory: None
+2021/03/14-01:19:35.094219 7fb39f114a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:19:35.094220 7fb39f114a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:19:35.094235 7fb39f114a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1618520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x15fdc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:19:35.094235 7fb39f114a80 Options.write_buffer_size: 134217728
+2021/03/14-01:19:35.094236 7fb39f114a80 Options.max_write_buffer_number: 6
+2021/03/14-01:19:35.094237 7fb39f114a80 Options.compression[0]: NoCompression
+2021/03/14-01:19:35.094250 7fb39f114a80 Options.compression[1]: NoCompression
+2021/03/14-01:19:35.094252 7fb39f114a80 Options.compression[2]: Snappy
+2021/03/14-01:19:35.094252 7fb39f114a80 Options.compression[3]: Snappy
+2021/03/14-01:19:35.094253 7fb39f114a80 Options.compression[4]: Snappy
+2021/03/14-01:19:35.094254 7fb39f114a80 Options.compression[5]: Snappy
+2021/03/14-01:19:35.094254 7fb39f114a80 Options.compression[6]: Snappy
+2021/03/14-01:19:35.094255 7fb39f114a80 Options.bottommost_compression: Disabled
+2021/03/14-01:19:35.094256 7fb39f114a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:19:35.094257 7fb39f114a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:19:35.094257 7fb39f114a80 Options.num_levels: 7
+2021/03/14-01:19:35.094258 7fb39f114a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:19:35.094258 7fb39f114a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:19:35.094259 7fb39f114a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:19:35.094259 7fb39f114a80 Options.compression_opts.level: -1
+2021/03/14-01:19:35.094260 7fb39f114a80 Options.compression_opts.strategy: 0
+2021/03/14-01:19:35.094261 7fb39f114a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:19:35.094261 7fb39f114a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:19:35.094262 7fb39f114a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:19:35.094262 7fb39f114a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:19:35.094263 7fb39f114a80 Options.target_file_size_base: 67108864
+2021/03/14-01:19:35.094263 7fb39f114a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:19:35.094264 7fb39f114a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:19:35.094265 7fb39f114a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:19:35.094265 7fb39f114a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:19:35.094267 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:19:35.094276 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:19:35.094277 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:19:35.094278 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:19:35.094278 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:19:35.094279 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:19:35.094279 7fb39f114a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:19:35.094280 7fb39f114a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:19:35.094280 7fb39f114a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:19:35.094281 7fb39f114a80 Options.arena_block_size: 16777216
+2021/03/14-01:19:35.094281 7fb39f114a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:19:35.094282 7fb39f114a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:19:35.094283 7fb39f114a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:19:35.094283 7fb39f114a80 Options.disable_auto_compactions: 0
+2021/03/14-01:19:35.094285 7fb39f114a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:19:35.094286 7fb39f114a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:19:35.094286 7fb39f114a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:19:35.094287 7fb39f114a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:19:35.094287 7fb39f114a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:19:35.094288 7fb39f114a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:19:35.094289 7fb39f114a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:19:35.094290 7fb39f114a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:19:35.094290 7fb39f114a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:19:35.094291 7fb39f114a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:19:35.094291 7fb39f114a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:19:35.094292 7fb39f114a80 Options.table_properties_collectors:
+2021/03/14-01:19:35.094293 7fb39f114a80 Options.inplace_update_support: 0
+2021/03/14-01:19:35.094293 7fb39f114a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:19:35.094294 7fb39f114a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:19:35.094294 7fb39f114a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:19:35.094295 7fb39f114a80 Options.bloom_locality: 0
+2021/03/14-01:19:35.094296 7fb39f114a80 Options.max_successive_merges: 0
+2021/03/14-01:19:35.094296 7fb39f114a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:19:35.094297 7fb39f114a80 Options.paranoid_file_checks: 0
+2021/03/14-01:19:35.094297 7fb39f114a80 Options.force_consistency_checks: 0
+2021/03/14-01:19:35.094298 7fb39f114a80 Options.report_bg_io_stats: 0
+2021/03/14-01:19:35.094770 7fb39f114a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:19:35.094773 7fb39f114a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:19:35.094928 7fb39f114a80 EVENT_LOG_v1 {"time_micros": 1615681175094911, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:19:35.094936 7fb39f114a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:19:35.773994 7fb39f114a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681204264175 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681204264175
new file mode 100644
index 0000000..fe65225
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681204264175
@@ -0,0 +1,186 @@
+2021/03/14-01:20:03.569889 7ff9bfa85a80 RocksDB version: 5.11.3
+2021/03/14-01:20:03.569966 7ff9bfa85a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:20:03.569968 7ff9bfa85a80 Compile date Mar 13 2021
+2021/03/14-01:20:03.569975 7ff9bfa85a80 DB SUMMARY
+2021/03/14-01:20:03.570104 7ff9bfa85a80 CURRENT file: CURRENT
+2021/03/14-01:20:03.570105 7ff9bfa85a80 IDENTITY file: IDENTITY
+2021/03/14-01:20:03.570120 7ff9bfa85a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:20:03.570122 7ff9bfa85a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:20:03.570123 7ff9bfa85a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:20:03.570130 7ff9bfa85a80 Options.error_if_exists: 0
+2021/03/14-01:20:03.570131 7ff9bfa85a80 Options.create_if_missing: 1
+2021/03/14-01:20:03.570132 7ff9bfa85a80 Options.paranoid_checks: 1
+2021/03/14-01:20:03.570132 7ff9bfa85a80 Options.env: 0x7ff9c043f080
+2021/03/14-01:20:03.570133 7ff9bfa85a80 Options.info_log: 0x2786ca0
+2021/03/14-01:20:03.570134 7ff9bfa85a80 Options.max_file_opening_threads: 16
+2021/03/14-01:20:03.570135 7ff9bfa85a80 Options.statistics: (nil)
+2021/03/14-01:20:03.570135 7ff9bfa85a80 Options.use_fsync: 0
+2021/03/14-01:20:03.570136 7ff9bfa85a80 Options.max_log_file_size: 0
+2021/03/14-01:20:03.570137 7ff9bfa85a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:20:03.570138 7ff9bfa85a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:20:03.570138 7ff9bfa85a80 Options.keep_log_file_num: 1000
+2021/03/14-01:20:03.570139 7ff9bfa85a80 Options.recycle_log_file_num: 0
+2021/03/14-01:20:03.570140 7ff9bfa85a80 Options.allow_fallocate: 1
+2021/03/14-01:20:03.570140 7ff9bfa85a80 Options.allow_mmap_reads: 0
+2021/03/14-01:20:03.570141 7ff9bfa85a80 Options.allow_mmap_writes: 0
+2021/03/14-01:20:03.570142 7ff9bfa85a80 Options.use_direct_reads: 0
+2021/03/14-01:20:03.570142 7ff9bfa85a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:20:03.570143 7ff9bfa85a80 Options.create_missing_column_families: 0
+2021/03/14-01:20:03.570144 7ff9bfa85a80 Options.db_log_dir:
+2021/03/14-01:20:03.570144 7ff9bfa85a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:20:03.570145 7ff9bfa85a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:20:03.570146 7ff9bfa85a80 Options.max_subcompactions: 1
+2021/03/14-01:20:03.570146 7ff9bfa85a80 Options.max_background_flushes: -1
+2021/03/14-01:20:03.570147 7ff9bfa85a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:20:03.570148 7ff9bfa85a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:20:03.570148 7ff9bfa85a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:20:03.570149 7ff9bfa85a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:20:03.570150 7ff9bfa85a80 Options.advise_random_on_open: 1
+2021/03/14-01:20:03.570150 7ff9bfa85a80 Options.db_write_buffer_size: 0
+2021/03/14-01:20:03.570151 7ff9bfa85a80 Options.write_buffer_manager: 0x276eb90
+2021/03/14-01:20:03.570152 7ff9bfa85a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:20:03.570152 7ff9bfa85a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:20:03.570153 7ff9bfa85a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:20:03.570154 7ff9bfa85a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:20:03.570154 7ff9bfa85a80 Options.rate_limiter: (nil)
+2021/03/14-01:20:03.570156 7ff9bfa85a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:20:03.570166 7ff9bfa85a80 Options.wal_recovery_mode: 2
+2021/03/14-01:20:03.570166 7ff9bfa85a80 Options.enable_thread_tracking: 0
+2021/03/14-01:20:03.570167 7ff9bfa85a80 Options.enable_pipelined_write: 0
+2021/03/14-01:20:03.570168 7ff9bfa85a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:20:03.570168 7ff9bfa85a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:20:03.570169 7ff9bfa85a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:20:03.570170 7ff9bfa85a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:20:03.570170 7ff9bfa85a80 Options.row_cache: None
+2021/03/14-01:20:03.570171 7ff9bfa85a80 Options.wal_filter: None
+2021/03/14-01:20:03.570172 7ff9bfa85a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:20:03.570173 7ff9bfa85a80 Options.allow_ingest_behind: 0
+2021/03/14-01:20:03.570173 7ff9bfa85a80 Options.preserve_deletes: 0
+2021/03/14-01:20:03.570174 7ff9bfa85a80 Options.two_write_queues: 0
+2021/03/14-01:20:03.570174 7ff9bfa85a80 Options.manual_wal_flush: 0
+2021/03/14-01:20:03.570176 7ff9bfa85a80 Options.max_background_jobs: 16
+2021/03/14-01:20:03.570177 7ff9bfa85a80 Options.max_background_compactions: -1
+2021/03/14-01:20:03.570177 7ff9bfa85a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:20:03.570178 7ff9bfa85a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:20:03.570179 7ff9bfa85a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:20:03.570179 7ff9bfa85a80 Options.max_total_wal_size: 0
+2021/03/14-01:20:03.570180 7ff9bfa85a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:20:03.570181 7ff9bfa85a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:20:03.570181 7ff9bfa85a80 Options.max_open_files: -1
+2021/03/14-01:20:03.570182 7ff9bfa85a80 Options.bytes_per_sync: 0
+2021/03/14-01:20:03.570183 7ff9bfa85a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:20:03.570183 7ff9bfa85a80 Options.compaction_readahead_size: 0
+2021/03/14-01:20:03.570184 7ff9bfa85a80 Compression algorithms supported:
+2021/03/14-01:20:03.570185 7ff9bfa85a80 Snappy supported: 1
+2021/03/14-01:20:03.570186 7ff9bfa85a80 Zlib supported: 1
+2021/03/14-01:20:03.570186 7ff9bfa85a80 Bzip supported: 1
+2021/03/14-01:20:03.570187 7ff9bfa85a80 LZ4 supported: 1
+2021/03/14-01:20:03.570188 7ff9bfa85a80 ZSTDNotFinal supported: 1
+2021/03/14-01:20:03.570193 7ff9bfa85a80 ZSTD supported: 1
+2021/03/14-01:20:03.570197 7ff9bfa85a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:20:03.570199 7ff9bfa85a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:20:03.570348 7ff9bfa85a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:20:03.570421 7ff9bfa85a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:20:03.570423 7ff9bfa85a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:20:03.570424 7ff9bfa85a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:20:03.570425 7ff9bfa85a80 Options.compaction_filter: None
+2021/03/14-01:20:03.570426 7ff9bfa85a80 Options.compaction_filter_factory: None
+2021/03/14-01:20:03.570426 7ff9bfa85a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:20:03.570427 7ff9bfa85a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:20:03.570444 7ff9bfa85a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x277e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2763c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:20:03.570445 7ff9bfa85a80 Options.write_buffer_size: 134217728
+2021/03/14-01:20:03.570446 7ff9bfa85a80 Options.max_write_buffer_number: 6
+2021/03/14-01:20:03.570447 7ff9bfa85a80 Options.compression[0]: NoCompression
+2021/03/14-01:20:03.570448 7ff9bfa85a80 Options.compression[1]: NoCompression
+2021/03/14-01:20:03.570449 7ff9bfa85a80 Options.compression[2]: Snappy
+2021/03/14-01:20:03.570449 7ff9bfa85a80 Options.compression[3]: Snappy
+2021/03/14-01:20:03.570450 7ff9bfa85a80 Options.compression[4]: Snappy
+2021/03/14-01:20:03.570451 7ff9bfa85a80 Options.compression[5]: Snappy
+2021/03/14-01:20:03.570451 7ff9bfa85a80 Options.compression[6]: Snappy
+2021/03/14-01:20:03.570452 7ff9bfa85a80 Options.bottommost_compression: Disabled
+2021/03/14-01:20:03.570453 7ff9bfa85a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:20:03.570454 7ff9bfa85a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:20:03.570454 7ff9bfa85a80 Options.num_levels: 7
+2021/03/14-01:20:03.570455 7ff9bfa85a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:20:03.570456 7ff9bfa85a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:20:03.570456 7ff9bfa85a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:20:03.570457 7ff9bfa85a80 Options.compression_opts.level: -1
+2021/03/14-01:20:03.570458 7ff9bfa85a80 Options.compression_opts.strategy: 0
+2021/03/14-01:20:03.570458 7ff9bfa85a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:20:03.570459 7ff9bfa85a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:20:03.570460 7ff9bfa85a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:20:03.570460 7ff9bfa85a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:20:03.570461 7ff9bfa85a80 Options.target_file_size_base: 67108864
+2021/03/14-01:20:03.570462 7ff9bfa85a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:20:03.570462 7ff9bfa85a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:20:03.570463 7ff9bfa85a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:20:03.570464 7ff9bfa85a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:20:03.570466 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:20:03.570477 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:20:03.570478 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:20:03.570479 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:20:03.570479 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:20:03.570480 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:20:03.570481 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:20:03.570481 7ff9bfa85a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:20:03.570482 7ff9bfa85a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:20:03.570483 7ff9bfa85a80 Options.arena_block_size: 16777216
+2021/03/14-01:20:03.570483 7ff9bfa85a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:20:03.570484 7ff9bfa85a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:20:03.570485 7ff9bfa85a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:20:03.570486 7ff9bfa85a80 Options.disable_auto_compactions: 0
+2021/03/14-01:20:03.570487 7ff9bfa85a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:20:03.570488 7ff9bfa85a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:20:03.570489 7ff9bfa85a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:20:03.570489 7ff9bfa85a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:20:03.570490 7ff9bfa85a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:20:03.570491 7ff9bfa85a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:20:03.570491 7ff9bfa85a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:20:03.570493 7ff9bfa85a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:20:03.570493 7ff9bfa85a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:20:03.570494 7ff9bfa85a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:20:03.570495 7ff9bfa85a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:20:03.570495 7ff9bfa85a80 Options.table_properties_collectors:
+2021/03/14-01:20:03.570496 7ff9bfa85a80 Options.inplace_update_support: 0
+2021/03/14-01:20:03.570497 7ff9bfa85a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:20:03.570497 7ff9bfa85a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:20:03.570498 7ff9bfa85a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:20:03.570499 7ff9bfa85a80 Options.bloom_locality: 0
+2021/03/14-01:20:03.570500 7ff9bfa85a80 Options.max_successive_merges: 0
+2021/03/14-01:20:03.570500 7ff9bfa85a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:20:03.570501 7ff9bfa85a80 Options.paranoid_file_checks: 0
+2021/03/14-01:20:03.570502 7ff9bfa85a80 Options.force_consistency_checks: 0
+2021/03/14-01:20:03.570502 7ff9bfa85a80 Options.report_bg_io_stats: 0
+2021/03/14-01:20:03.571008 7ff9bfa85a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:20:03.571012 7ff9bfa85a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:20:03.571159 7ff9bfa85a80 EVENT_LOG_v1 {"time_micros": 1615681203571144, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:20:03.571166 7ff9bfa85a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:20:04.252134 7ff9bfa85a80 EVENT_LOG_v1 {"time_micros": 1615681204252130, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681204933371 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681204933371
new file mode 100644
index 0000000..ed1405f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681204933371
@@ -0,0 +1,186 @@
+2021/03/14-01:20:04.264552 7ff9bfa85a80 RocksDB version: 5.11.3
+2021/03/14-01:20:04.264607 7ff9bfa85a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:20:04.264609 7ff9bfa85a80 Compile date Mar 13 2021
+2021/03/14-01:20:04.264613 7ff9bfa85a80 DB SUMMARY
+2021/03/14-01:20:04.264722 7ff9bfa85a80 CURRENT file: CURRENT
+2021/03/14-01:20:04.264723 7ff9bfa85a80 IDENTITY file: IDENTITY
+2021/03/14-01:20:04.264736 7ff9bfa85a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:20:04.264737 7ff9bfa85a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:20:04.264738 7ff9bfa85a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:20:04.264744 7ff9bfa85a80 Options.error_if_exists: 0
+2021/03/14-01:20:04.264745 7ff9bfa85a80 Options.create_if_missing: 1
+2021/03/14-01:20:04.264746 7ff9bfa85a80 Options.paranoid_checks: 1
+2021/03/14-01:20:04.264746 7ff9bfa85a80 Options.env: 0x7ff9c043f080
+2021/03/14-01:20:04.264747 7ff9bfa85a80 Options.info_log: 0x2786ca0
+2021/03/14-01:20:04.264747 7ff9bfa85a80 Options.max_file_opening_threads: 16
+2021/03/14-01:20:04.264748 7ff9bfa85a80 Options.statistics: (nil)
+2021/03/14-01:20:04.264749 7ff9bfa85a80 Options.use_fsync: 0
+2021/03/14-01:20:04.264749 7ff9bfa85a80 Options.max_log_file_size: 0
+2021/03/14-01:20:04.264750 7ff9bfa85a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:20:04.264751 7ff9bfa85a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:20:04.264751 7ff9bfa85a80 Options.keep_log_file_num: 1000
+2021/03/14-01:20:04.264752 7ff9bfa85a80 Options.recycle_log_file_num: 0
+2021/03/14-01:20:04.264753 7ff9bfa85a80 Options.allow_fallocate: 1
+2021/03/14-01:20:04.264753 7ff9bfa85a80 Options.allow_mmap_reads: 0
+2021/03/14-01:20:04.264754 7ff9bfa85a80 Options.allow_mmap_writes: 0
+2021/03/14-01:20:04.264754 7ff9bfa85a80 Options.use_direct_reads: 0
+2021/03/14-01:20:04.264755 7ff9bfa85a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:20:04.264755 7ff9bfa85a80 Options.create_missing_column_families: 0
+2021/03/14-01:20:04.264756 7ff9bfa85a80 Options.db_log_dir:
+2021/03/14-01:20:04.264757 7ff9bfa85a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:20:04.264757 7ff9bfa85a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:20:04.264758 7ff9bfa85a80 Options.max_subcompactions: 1
+2021/03/14-01:20:04.264758 7ff9bfa85a80 Options.max_background_flushes: -1
+2021/03/14-01:20:04.264759 7ff9bfa85a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:20:04.264760 7ff9bfa85a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:20:04.264760 7ff9bfa85a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:20:04.264761 7ff9bfa85a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:20:04.264761 7ff9bfa85a80 Options.advise_random_on_open: 1
+2021/03/14-01:20:04.264762 7ff9bfa85a80 Options.db_write_buffer_size: 0
+2021/03/14-01:20:04.264763 7ff9bfa85a80 Options.write_buffer_manager: 0x276eb90
+2021/03/14-01:20:04.264763 7ff9bfa85a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:20:04.264764 7ff9bfa85a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:20:04.264764 7ff9bfa85a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:20:04.264765 7ff9bfa85a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:20:04.264765 7ff9bfa85a80 Options.rate_limiter: (nil)
+2021/03/14-01:20:04.264767 7ff9bfa85a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:20:04.264775 7ff9bfa85a80 Options.wal_recovery_mode: 2
+2021/03/14-01:20:04.264775 7ff9bfa85a80 Options.enable_thread_tracking: 0
+2021/03/14-01:20:04.264776 7ff9bfa85a80 Options.enable_pipelined_write: 0
+2021/03/14-01:20:04.264777 7ff9bfa85a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:20:04.264777 7ff9bfa85a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:20:04.264778 7ff9bfa85a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:20:04.264778 7ff9bfa85a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:20:04.264779 7ff9bfa85a80 Options.row_cache: None
+2021/03/14-01:20:04.264780 7ff9bfa85a80 Options.wal_filter: None
+2021/03/14-01:20:04.264780 7ff9bfa85a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:20:04.264781 7ff9bfa85a80 Options.allow_ingest_behind: 0
+2021/03/14-01:20:04.264781 7ff9bfa85a80 Options.preserve_deletes: 0
+2021/03/14-01:20:04.264782 7ff9bfa85a80 Options.two_write_queues: 0
+2021/03/14-01:20:04.264782 7ff9bfa85a80 Options.manual_wal_flush: 0
+2021/03/14-01:20:04.264784 7ff9bfa85a80 Options.max_background_jobs: 16
+2021/03/14-01:20:04.264784 7ff9bfa85a80 Options.max_background_compactions: -1
+2021/03/14-01:20:04.264785 7ff9bfa85a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:20:04.264785 7ff9bfa85a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:20:04.264786 7ff9bfa85a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:20:04.264786 7ff9bfa85a80 Options.max_total_wal_size: 0
+2021/03/14-01:20:04.264787 7ff9bfa85a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:20:04.264788 7ff9bfa85a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:20:04.264788 7ff9bfa85a80 Options.max_open_files: -1
+2021/03/14-01:20:04.264789 7ff9bfa85a80 Options.bytes_per_sync: 0
+2021/03/14-01:20:04.264790 7ff9bfa85a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:20:04.264790 7ff9bfa85a80 Options.compaction_readahead_size: 0
+2021/03/14-01:20:04.264791 7ff9bfa85a80 Compression algorithms supported:
+2021/03/14-01:20:04.264791 7ff9bfa85a80 Snappy supported: 1
+2021/03/14-01:20:04.264792 7ff9bfa85a80 Zlib supported: 1
+2021/03/14-01:20:04.264792 7ff9bfa85a80 Bzip supported: 1
+2021/03/14-01:20:04.264793 7ff9bfa85a80 LZ4 supported: 1
+2021/03/14-01:20:04.264794 7ff9bfa85a80 ZSTDNotFinal supported: 1
+2021/03/14-01:20:04.264797 7ff9bfa85a80 ZSTD supported: 1
+2021/03/14-01:20:04.264800 7ff9bfa85a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:20:04.264802 7ff9bfa85a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:20:04.264887 7ff9bfa85a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:20:04.264940 7ff9bfa85a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:20:04.264942 7ff9bfa85a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:20:04.264942 7ff9bfa85a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:20:04.264943 7ff9bfa85a80 Options.compaction_filter: None
+2021/03/14-01:20:04.264944 7ff9bfa85a80 Options.compaction_filter_factory: None
+2021/03/14-01:20:04.264944 7ff9bfa85a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:20:04.264945 7ff9bfa85a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:20:04.264958 7ff9bfa85a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x277e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2763c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:20:04.264959 7ff9bfa85a80 Options.write_buffer_size: 134217728
+2021/03/14-01:20:04.264960 7ff9bfa85a80 Options.max_write_buffer_number: 6
+2021/03/14-01:20:04.264961 7ff9bfa85a80 Options.compression[0]: NoCompression
+2021/03/14-01:20:04.264961 7ff9bfa85a80 Options.compression[1]: NoCompression
+2021/03/14-01:20:04.264962 7ff9bfa85a80 Options.compression[2]: Snappy
+2021/03/14-01:20:04.264962 7ff9bfa85a80 Options.compression[3]: Snappy
+2021/03/14-01:20:04.264963 7ff9bfa85a80 Options.compression[4]: Snappy
+2021/03/14-01:20:04.264964 7ff9bfa85a80 Options.compression[5]: Snappy
+2021/03/14-01:20:04.264964 7ff9bfa85a80 Options.compression[6]: Snappy
+2021/03/14-01:20:04.264965 7ff9bfa85a80 Options.bottommost_compression: Disabled
+2021/03/14-01:20:04.264966 7ff9bfa85a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:20:04.264966 7ff9bfa85a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:20:04.264967 7ff9bfa85a80 Options.num_levels: 7
+2021/03/14-01:20:04.264967 7ff9bfa85a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:20:04.264968 7ff9bfa85a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:20:04.264969 7ff9bfa85a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:20:04.264969 7ff9bfa85a80 Options.compression_opts.level: -1
+2021/03/14-01:20:04.264970 7ff9bfa85a80 Options.compression_opts.strategy: 0
+2021/03/14-01:20:04.264970 7ff9bfa85a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:20:04.264971 7ff9bfa85a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:20:04.264971 7ff9bfa85a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:20:04.264972 7ff9bfa85a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:20:04.264973 7ff9bfa85a80 Options.target_file_size_base: 67108864
+2021/03/14-01:20:04.264973 7ff9bfa85a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:20:04.264974 7ff9bfa85a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:20:04.264975 7ff9bfa85a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:20:04.264975 7ff9bfa85a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:20:04.264977 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:20:04.264984 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:20:04.264985 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:20:04.264986 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:20:04.264986 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:20:04.264987 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:20:04.264987 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:20:04.264988 7ff9bfa85a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:20:04.264988 7ff9bfa85a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:20:04.264989 7ff9bfa85a80 Options.arena_block_size: 16777216
+2021/03/14-01:20:04.264990 7ff9bfa85a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:20:04.264990 7ff9bfa85a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:20:04.264991 7ff9bfa85a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:20:04.264992 7ff9bfa85a80 Options.disable_auto_compactions: 0
+2021/03/14-01:20:04.264993 7ff9bfa85a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:20:04.264994 7ff9bfa85a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:20:04.264994 7ff9bfa85a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:20:04.264995 7ff9bfa85a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:20:04.264996 7ff9bfa85a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:20:04.264996 7ff9bfa85a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:20:04.264997 7ff9bfa85a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:20:04.264998 7ff9bfa85a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:20:04.264998 7ff9bfa85a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:20:04.264999 7ff9bfa85a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:20:04.265000 7ff9bfa85a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:20:04.265000 7ff9bfa85a80 Options.table_properties_collectors:
+2021/03/14-01:20:04.265001 7ff9bfa85a80 Options.inplace_update_support: 0
+2021/03/14-01:20:04.265001 7ff9bfa85a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:20:04.265002 7ff9bfa85a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:20:04.265003 7ff9bfa85a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:20:04.265003 7ff9bfa85a80 Options.bloom_locality: 0
+2021/03/14-01:20:04.265004 7ff9bfa85a80 Options.max_successive_merges: 0
+2021/03/14-01:20:04.265005 7ff9bfa85a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:20:04.265005 7ff9bfa85a80 Options.paranoid_file_checks: 0
+2021/03/14-01:20:04.265006 7ff9bfa85a80 Options.force_consistency_checks: 0
+2021/03/14-01:20:04.265006 7ff9bfa85a80 Options.report_bg_io_stats: 0
+2021/03/14-01:20:04.265400 7ff9bfa85a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:20:04.265403 7ff9bfa85a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:20:04.265517 7ff9bfa85a80 EVENT_LOG_v1 {"time_micros": 1615681204265507, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:20:04.265523 7ff9bfa85a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:20:04.921497 7ff9bfa85a80 EVENT_LOG_v1 {"time_micros": 1615681204921494, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681205603396 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681205603396
new file mode 100644
index 0000000..6a90ab2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681205603396
@@ -0,0 +1,186 @@
+2021/03/14-01:20:04.933737 7ff9bfa85a80 RocksDB version: 5.11.3
+2021/03/14-01:20:04.933792 7ff9bfa85a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:20:04.933794 7ff9bfa85a80 Compile date Mar 13 2021
+2021/03/14-01:20:04.933798 7ff9bfa85a80 DB SUMMARY
+2021/03/14-01:20:04.933907 7ff9bfa85a80 CURRENT file: CURRENT
+2021/03/14-01:20:04.933908 7ff9bfa85a80 IDENTITY file: IDENTITY
+2021/03/14-01:20:04.933921 7ff9bfa85a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:20:04.933922 7ff9bfa85a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:20:04.933923 7ff9bfa85a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:20:04.933929 7ff9bfa85a80 Options.error_if_exists: 0
+2021/03/14-01:20:04.933930 7ff9bfa85a80 Options.create_if_missing: 1
+2021/03/14-01:20:04.933931 7ff9bfa85a80 Options.paranoid_checks: 1
+2021/03/14-01:20:04.933931 7ff9bfa85a80 Options.env: 0x7ff9c043f080
+2021/03/14-01:20:04.933932 7ff9bfa85a80 Options.info_log: 0x2786ca0
+2021/03/14-01:20:04.933933 7ff9bfa85a80 Options.max_file_opening_threads: 16
+2021/03/14-01:20:04.933933 7ff9bfa85a80 Options.statistics: (nil)
+2021/03/14-01:20:04.933934 7ff9bfa85a80 Options.use_fsync: 0
+2021/03/14-01:20:04.933935 7ff9bfa85a80 Options.max_log_file_size: 0
+2021/03/14-01:20:04.933935 7ff9bfa85a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:20:04.933936 7ff9bfa85a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:20:04.933936 7ff9bfa85a80 Options.keep_log_file_num: 1000
+2021/03/14-01:20:04.933937 7ff9bfa85a80 Options.recycle_log_file_num: 0
+2021/03/14-01:20:04.933938 7ff9bfa85a80 Options.allow_fallocate: 1
+2021/03/14-01:20:04.933938 7ff9bfa85a80 Options.allow_mmap_reads: 0
+2021/03/14-01:20:04.933939 7ff9bfa85a80 Options.allow_mmap_writes: 0
+2021/03/14-01:20:04.933939 7ff9bfa85a80 Options.use_direct_reads: 0
+2021/03/14-01:20:04.933940 7ff9bfa85a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:20:04.933940 7ff9bfa85a80 Options.create_missing_column_families: 0
+2021/03/14-01:20:04.933941 7ff9bfa85a80 Options.db_log_dir:
+2021/03/14-01:20:04.933942 7ff9bfa85a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:20:04.933942 7ff9bfa85a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:20:04.933943 7ff9bfa85a80 Options.max_subcompactions: 1
+2021/03/14-01:20:04.933943 7ff9bfa85a80 Options.max_background_flushes: -1
+2021/03/14-01:20:04.933944 7ff9bfa85a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:20:04.933945 7ff9bfa85a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:20:04.933945 7ff9bfa85a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:20:04.933946 7ff9bfa85a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:20:04.933946 7ff9bfa85a80 Options.advise_random_on_open: 1
+2021/03/14-01:20:04.933947 7ff9bfa85a80 Options.db_write_buffer_size: 0
+2021/03/14-01:20:04.933947 7ff9bfa85a80 Options.write_buffer_manager: 0x276eb90
+2021/03/14-01:20:04.933948 7ff9bfa85a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:20:04.933949 7ff9bfa85a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:20:04.933949 7ff9bfa85a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:20:04.933950 7ff9bfa85a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:20:04.933950 7ff9bfa85a80 Options.rate_limiter: (nil)
+2021/03/14-01:20:04.933952 7ff9bfa85a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:20:04.933959 7ff9bfa85a80 Options.wal_recovery_mode: 2
+2021/03/14-01:20:04.933960 7ff9bfa85a80 Options.enable_thread_tracking: 0
+2021/03/14-01:20:04.933961 7ff9bfa85a80 Options.enable_pipelined_write: 0
+2021/03/14-01:20:04.933961 7ff9bfa85a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:20:04.933962 7ff9bfa85a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:20:04.933963 7ff9bfa85a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:20:04.933963 7ff9bfa85a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:20:04.933964 7ff9bfa85a80 Options.row_cache: None
+2021/03/14-01:20:04.933964 7ff9bfa85a80 Options.wal_filter: None
+2021/03/14-01:20:04.933965 7ff9bfa85a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:20:04.933966 7ff9bfa85a80 Options.allow_ingest_behind: 0
+2021/03/14-01:20:04.933966 7ff9bfa85a80 Options.preserve_deletes: 0
+2021/03/14-01:20:04.933967 7ff9bfa85a80 Options.two_write_queues: 0
+2021/03/14-01:20:04.933967 7ff9bfa85a80 Options.manual_wal_flush: 0
+2021/03/14-01:20:04.933968 7ff9bfa85a80 Options.max_background_jobs: 16
+2021/03/14-01:20:04.933969 7ff9bfa85a80 Options.max_background_compactions: -1
+2021/03/14-01:20:04.933970 7ff9bfa85a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:20:04.933970 7ff9bfa85a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:20:04.933971 7ff9bfa85a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:20:04.933971 7ff9bfa85a80 Options.max_total_wal_size: 0
+2021/03/14-01:20:04.933972 7ff9bfa85a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:20:04.933973 7ff9bfa85a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:20:04.933973 7ff9bfa85a80 Options.max_open_files: -1
+2021/03/14-01:20:04.933974 7ff9bfa85a80 Options.bytes_per_sync: 0
+2021/03/14-01:20:04.933974 7ff9bfa85a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:20:04.933975 7ff9bfa85a80 Options.compaction_readahead_size: 0
+2021/03/14-01:20:04.933975 7ff9bfa85a80 Compression algorithms supported:
+2021/03/14-01:20:04.933976 7ff9bfa85a80 Snappy supported: 1
+2021/03/14-01:20:04.933977 7ff9bfa85a80 Zlib supported: 1
+2021/03/14-01:20:04.933977 7ff9bfa85a80 Bzip supported: 1
+2021/03/14-01:20:04.933978 7ff9bfa85a80 LZ4 supported: 1
+2021/03/14-01:20:04.933978 7ff9bfa85a80 ZSTDNotFinal supported: 1
+2021/03/14-01:20:04.933982 7ff9bfa85a80 ZSTD supported: 1
+2021/03/14-01:20:04.933985 7ff9bfa85a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:20:04.933986 7ff9bfa85a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:20:04.934071 7ff9bfa85a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:20:04.934123 7ff9bfa85a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:20:04.934125 7ff9bfa85a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:20:04.934126 7ff9bfa85a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:20:04.934127 7ff9bfa85a80 Options.compaction_filter: None
+2021/03/14-01:20:04.934127 7ff9bfa85a80 Options.compaction_filter_factory: None
+2021/03/14-01:20:04.934128 7ff9bfa85a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:20:04.934129 7ff9bfa85a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:20:04.934142 7ff9bfa85a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x277e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2763c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:20:04.934143 7ff9bfa85a80 Options.write_buffer_size: 134217728
+2021/03/14-01:20:04.934144 7ff9bfa85a80 Options.max_write_buffer_number: 6
+2021/03/14-01:20:04.934144 7ff9bfa85a80 Options.compression[0]: NoCompression
+2021/03/14-01:20:04.934145 7ff9bfa85a80 Options.compression[1]: NoCompression
+2021/03/14-01:20:04.934146 7ff9bfa85a80 Options.compression[2]: Snappy
+2021/03/14-01:20:04.934146 7ff9bfa85a80 Options.compression[3]: Snappy
+2021/03/14-01:20:04.934147 7ff9bfa85a80 Options.compression[4]: Snappy
+2021/03/14-01:20:04.934148 7ff9bfa85a80 Options.compression[5]: Snappy
+2021/03/14-01:20:04.934148 7ff9bfa85a80 Options.compression[6]: Snappy
+2021/03/14-01:20:04.934149 7ff9bfa85a80 Options.bottommost_compression: Disabled
+2021/03/14-01:20:04.934150 7ff9bfa85a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:20:04.934150 7ff9bfa85a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:20:04.934151 7ff9bfa85a80 Options.num_levels: 7
+2021/03/14-01:20:04.934151 7ff9bfa85a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:20:04.934152 7ff9bfa85a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:20:04.934153 7ff9bfa85a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:20:04.934153 7ff9bfa85a80 Options.compression_opts.level: -1
+2021/03/14-01:20:04.934154 7ff9bfa85a80 Options.compression_opts.strategy: 0
+2021/03/14-01:20:04.934154 7ff9bfa85a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:20:04.934155 7ff9bfa85a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:20:04.934156 7ff9bfa85a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:20:04.934156 7ff9bfa85a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:20:04.934157 7ff9bfa85a80 Options.target_file_size_base: 67108864
+2021/03/14-01:20:04.934157 7ff9bfa85a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:20:04.934158 7ff9bfa85a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:20:04.934158 7ff9bfa85a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:20:04.934159 7ff9bfa85a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:20:04.934161 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:20:04.934168 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:20:04.934169 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:20:04.934169 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:20:04.934170 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:20:04.934171 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:20:04.934171 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:20:04.934172 7ff9bfa85a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:20:04.934172 7ff9bfa85a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:20:04.934173 7ff9bfa85a80 Options.arena_block_size: 16777216
+2021/03/14-01:20:04.934174 7ff9bfa85a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:20:04.934174 7ff9bfa85a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:20:04.934175 7ff9bfa85a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:20:04.934175 7ff9bfa85a80 Options.disable_auto_compactions: 0
+2021/03/14-01:20:04.934177 7ff9bfa85a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:20:04.934178 7ff9bfa85a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:20:04.934178 7ff9bfa85a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:20:04.934179 7ff9bfa85a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:20:04.934180 7ff9bfa85a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:20:04.934180 7ff9bfa85a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:20:04.934181 7ff9bfa85a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:20:04.934182 7ff9bfa85a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:20:04.934182 7ff9bfa85a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:20:04.934183 7ff9bfa85a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:20:04.934183 7ff9bfa85a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:20:04.934184 7ff9bfa85a80 Options.table_properties_collectors:
+2021/03/14-01:20:04.934185 7ff9bfa85a80 Options.inplace_update_support: 0
+2021/03/14-01:20:04.934185 7ff9bfa85a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:20:04.934186 7ff9bfa85a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:20:04.934187 7ff9bfa85a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:20:04.934187 7ff9bfa85a80 Options.bloom_locality: 0
+2021/03/14-01:20:04.934188 7ff9bfa85a80 Options.max_successive_merges: 0
+2021/03/14-01:20:04.934188 7ff9bfa85a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:20:04.934189 7ff9bfa85a80 Options.paranoid_file_checks: 0
+2021/03/14-01:20:04.934189 7ff9bfa85a80 Options.force_consistency_checks: 0
+2021/03/14-01:20:04.934190 7ff9bfa85a80 Options.report_bg_io_stats: 0
+2021/03/14-01:20:04.934567 7ff9bfa85a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:20:04.934570 7ff9bfa85a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:20:04.934686 7ff9bfa85a80 EVENT_LOG_v1 {"time_micros": 1615681204934676, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:20:04.934691 7ff9bfa85a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:20:05.591137 7ff9bfa85a80 EVENT_LOG_v1 {"time_micros": 1615681205591134, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681229788300 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681229788300
new file mode 100644
index 0000000..898b171
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681229788300
@@ -0,0 +1,186 @@
+2021/03/14-01:20:05.603758 7ff9bfa85a80 RocksDB version: 5.11.3
+2021/03/14-01:20:05.603813 7ff9bfa85a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:20:05.603814 7ff9bfa85a80 Compile date Mar 13 2021
+2021/03/14-01:20:05.603819 7ff9bfa85a80 DB SUMMARY
+2021/03/14-01:20:05.603930 7ff9bfa85a80 CURRENT file: CURRENT
+2021/03/14-01:20:05.603931 7ff9bfa85a80 IDENTITY file: IDENTITY
+2021/03/14-01:20:05.603945 7ff9bfa85a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:20:05.603946 7ff9bfa85a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:20:05.603947 7ff9bfa85a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:20:05.603953 7ff9bfa85a80 Options.error_if_exists: 0
+2021/03/14-01:20:05.603954 7ff9bfa85a80 Options.create_if_missing: 1
+2021/03/14-01:20:05.603954 7ff9bfa85a80 Options.paranoid_checks: 1
+2021/03/14-01:20:05.603955 7ff9bfa85a80 Options.env: 0x7ff9c043f080
+2021/03/14-01:20:05.603956 7ff9bfa85a80 Options.info_log: 0x2786ca0
+2021/03/14-01:20:05.603956 7ff9bfa85a80 Options.max_file_opening_threads: 16
+2021/03/14-01:20:05.603957 7ff9bfa85a80 Options.statistics: (nil)
+2021/03/14-01:20:05.603958 7ff9bfa85a80 Options.use_fsync: 0
+2021/03/14-01:20:05.603958 7ff9bfa85a80 Options.max_log_file_size: 0
+2021/03/14-01:20:05.603959 7ff9bfa85a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:20:05.603959 7ff9bfa85a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:20:05.603960 7ff9bfa85a80 Options.keep_log_file_num: 1000
+2021/03/14-01:20:05.603961 7ff9bfa85a80 Options.recycle_log_file_num: 0
+2021/03/14-01:20:05.603961 7ff9bfa85a80 Options.allow_fallocate: 1
+2021/03/14-01:20:05.603962 7ff9bfa85a80 Options.allow_mmap_reads: 0
+2021/03/14-01:20:05.603962 7ff9bfa85a80 Options.allow_mmap_writes: 0
+2021/03/14-01:20:05.603963 7ff9bfa85a80 Options.use_direct_reads: 0
+2021/03/14-01:20:05.603963 7ff9bfa85a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:20:05.603964 7ff9bfa85a80 Options.create_missing_column_families: 0
+2021/03/14-01:20:05.603965 7ff9bfa85a80 Options.db_log_dir:
+2021/03/14-01:20:05.603965 7ff9bfa85a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:20:05.603966 7ff9bfa85a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:20:05.603966 7ff9bfa85a80 Options.max_subcompactions: 1
+2021/03/14-01:20:05.603967 7ff9bfa85a80 Options.max_background_flushes: -1
+2021/03/14-01:20:05.603968 7ff9bfa85a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:20:05.603968 7ff9bfa85a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:20:05.603969 7ff9bfa85a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:20:05.603969 7ff9bfa85a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:20:05.603970 7ff9bfa85a80 Options.advise_random_on_open: 1
+2021/03/14-01:20:05.603970 7ff9bfa85a80 Options.db_write_buffer_size: 0
+2021/03/14-01:20:05.603971 7ff9bfa85a80 Options.write_buffer_manager: 0x276eb90
+2021/03/14-01:20:05.603972 7ff9bfa85a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:20:05.603972 7ff9bfa85a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:20:05.603973 7ff9bfa85a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:20:05.603973 7ff9bfa85a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:20:05.603974 7ff9bfa85a80 Options.rate_limiter: (nil)
+2021/03/14-01:20:05.603975 7ff9bfa85a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:20:05.603983 7ff9bfa85a80 Options.wal_recovery_mode: 2
+2021/03/14-01:20:05.603984 7ff9bfa85a80 Options.enable_thread_tracking: 0
+2021/03/14-01:20:05.603984 7ff9bfa85a80 Options.enable_pipelined_write: 0
+2021/03/14-01:20:05.603985 7ff9bfa85a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:20:05.603986 7ff9bfa85a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:20:05.603986 7ff9bfa85a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:20:05.603987 7ff9bfa85a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:20:05.603987 7ff9bfa85a80 Options.row_cache: None
+2021/03/14-01:20:05.603988 7ff9bfa85a80 Options.wal_filter: None
+2021/03/14-01:20:05.603989 7ff9bfa85a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:20:05.603989 7ff9bfa85a80 Options.allow_ingest_behind: 0
+2021/03/14-01:20:05.603990 7ff9bfa85a80 Options.preserve_deletes: 0
+2021/03/14-01:20:05.603990 7ff9bfa85a80 Options.two_write_queues: 0
+2021/03/14-01:20:05.603991 7ff9bfa85a80 Options.manual_wal_flush: 0
+2021/03/14-01:20:05.603992 7ff9bfa85a80 Options.max_background_jobs: 16
+2021/03/14-01:20:05.603993 7ff9bfa85a80 Options.max_background_compactions: -1
+2021/03/14-01:20:05.603993 7ff9bfa85a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:20:05.603994 7ff9bfa85a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:20:05.603994 7ff9bfa85a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:20:05.603995 7ff9bfa85a80 Options.max_total_wal_size: 0
+2021/03/14-01:20:05.603996 7ff9bfa85a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:20:05.603996 7ff9bfa85a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:20:05.603997 7ff9bfa85a80 Options.max_open_files: -1
+2021/03/14-01:20:05.603997 7ff9bfa85a80 Options.bytes_per_sync: 0
+2021/03/14-01:20:05.603998 7ff9bfa85a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:20:05.603998 7ff9bfa85a80 Options.compaction_readahead_size: 0
+2021/03/14-01:20:05.603999 7ff9bfa85a80 Compression algorithms supported:
+2021/03/14-01:20:05.604000 7ff9bfa85a80 Snappy supported: 1
+2021/03/14-01:20:05.604000 7ff9bfa85a80 Zlib supported: 1
+2021/03/14-01:20:05.604001 7ff9bfa85a80 Bzip supported: 1
+2021/03/14-01:20:05.604001 7ff9bfa85a80 LZ4 supported: 1
+2021/03/14-01:20:05.604002 7ff9bfa85a80 ZSTDNotFinal supported: 1
+2021/03/14-01:20:05.604006 7ff9bfa85a80 ZSTD supported: 1
+2021/03/14-01:20:05.604009 7ff9bfa85a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:20:05.604010 7ff9bfa85a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:20:05.604093 7ff9bfa85a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:20:05.604145 7ff9bfa85a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:20:05.604147 7ff9bfa85a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:20:05.604148 7ff9bfa85a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:20:05.604148 7ff9bfa85a80 Options.compaction_filter: None
+2021/03/14-01:20:05.604149 7ff9bfa85a80 Options.compaction_filter_factory: None
+2021/03/14-01:20:05.604149 7ff9bfa85a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:20:05.604150 7ff9bfa85a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:20:05.604164 7ff9bfa85a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x277e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2763c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:20:05.604165 7ff9bfa85a80 Options.write_buffer_size: 134217728
+2021/03/14-01:20:05.604165 7ff9bfa85a80 Options.max_write_buffer_number: 6
+2021/03/14-01:20:05.604166 7ff9bfa85a80 Options.compression[0]: NoCompression
+2021/03/14-01:20:05.604167 7ff9bfa85a80 Options.compression[1]: NoCompression
+2021/03/14-01:20:05.604167 7ff9bfa85a80 Options.compression[2]: Snappy
+2021/03/14-01:20:05.604168 7ff9bfa85a80 Options.compression[3]: Snappy
+2021/03/14-01:20:05.604169 7ff9bfa85a80 Options.compression[4]: Snappy
+2021/03/14-01:20:05.604169 7ff9bfa85a80 Options.compression[5]: Snappy
+2021/03/14-01:20:05.604170 7ff9bfa85a80 Options.compression[6]: Snappy
+2021/03/14-01:20:05.604170 7ff9bfa85a80 Options.bottommost_compression: Disabled
+2021/03/14-01:20:05.604171 7ff9bfa85a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:20:05.604172 7ff9bfa85a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:20:05.604172 7ff9bfa85a80 Options.num_levels: 7
+2021/03/14-01:20:05.604173 7ff9bfa85a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:20:05.604173 7ff9bfa85a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:20:05.604174 7ff9bfa85a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:20:05.604175 7ff9bfa85a80 Options.compression_opts.level: -1
+2021/03/14-01:20:05.604175 7ff9bfa85a80 Options.compression_opts.strategy: 0
+2021/03/14-01:20:05.604176 7ff9bfa85a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:20:05.604176 7ff9bfa85a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:20:05.604177 7ff9bfa85a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:20:05.604178 7ff9bfa85a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:20:05.604178 7ff9bfa85a80 Options.target_file_size_base: 67108864
+2021/03/14-01:20:05.604179 7ff9bfa85a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:20:05.604179 7ff9bfa85a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:20:05.604180 7ff9bfa85a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:20:05.604181 7ff9bfa85a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:20:05.604182 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:20:05.604190 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:20:05.604190 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:20:05.604191 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:20:05.604192 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:20:05.604192 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:20:05.604193 7ff9bfa85a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:20:05.604193 7ff9bfa85a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:20:05.604194 7ff9bfa85a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:20:05.604195 7ff9bfa85a80 Options.arena_block_size: 16777216
+2021/03/14-01:20:05.604195 7ff9bfa85a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:20:05.604196 7ff9bfa85a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:20:05.604196 7ff9bfa85a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:20:05.604197 7ff9bfa85a80 Options.disable_auto_compactions: 0
+2021/03/14-01:20:05.604199 7ff9bfa85a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:20:05.604199 7ff9bfa85a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:20:05.604200 7ff9bfa85a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:20:05.604201 7ff9bfa85a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:20:05.604201 7ff9bfa85a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:20:05.604202 7ff9bfa85a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:20:05.604202 7ff9bfa85a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:20:05.604203 7ff9bfa85a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:20:05.604204 7ff9bfa85a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:20:05.604204 7ff9bfa85a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:20:05.604205 7ff9bfa85a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:20:05.604206 7ff9bfa85a80 Options.table_properties_collectors:
+2021/03/14-01:20:05.604206 7ff9bfa85a80 Options.inplace_update_support: 0
+2021/03/14-01:20:05.604207 7ff9bfa85a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:20:05.604207 7ff9bfa85a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:20:05.604208 7ff9bfa85a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:20:05.604209 7ff9bfa85a80 Options.bloom_locality: 0
+2021/03/14-01:20:05.604209 7ff9bfa85a80 Options.max_successive_merges: 0
+2021/03/14-01:20:05.604210 7ff9bfa85a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:20:05.604211 7ff9bfa85a80 Options.paranoid_file_checks: 0
+2021/03/14-01:20:05.604211 7ff9bfa85a80 Options.force_consistency_checks: 0
+2021/03/14-01:20:05.604212 7ff9bfa85a80 Options.report_bg_io_stats: 0
+2021/03/14-01:20:05.604586 7ff9bfa85a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:20:05.604588 7ff9bfa85a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:20:05.604704 7ff9bfa85a80 EVENT_LOG_v1 {"time_micros": 1615681205604694, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:20:05.604709 7ff9bfa85a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:20:06.266889 7ff9bfa85a80 EVENT_LOG_v1 {"time_micros": 1615681206266885, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681230477394 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681230477394
new file mode 100644
index 0000000..2df4d64
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681230477394
@@ -0,0 +1,186 @@
+2021/03/14-01:20:29.788783 7fbad98eca80 RocksDB version: 5.11.3
+2021/03/14-01:20:29.788861 7fbad98eca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:20:29.788863 7fbad98eca80 Compile date Mar 13 2021
+2021/03/14-01:20:29.788866 7fbad98eca80 DB SUMMARY
+2021/03/14-01:20:29.789001 7fbad98eca80 CURRENT file: CURRENT
+2021/03/14-01:20:29.789002 7fbad98eca80 IDENTITY file: IDENTITY
+2021/03/14-01:20:29.789015 7fbad98eca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:20:29.789017 7fbad98eca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:20:29.789018 7fbad98eca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:20:29.789025 7fbad98eca80 Options.error_if_exists: 0
+2021/03/14-01:20:29.789026 7fbad98eca80 Options.create_if_missing: 1
+2021/03/14-01:20:29.789027 7fbad98eca80 Options.paranoid_checks: 1
+2021/03/14-01:20:29.789027 7fbad98eca80 Options.env: 0x7fbada2a6080
+2021/03/14-01:20:29.789028 7fbad98eca80 Options.info_log: 0x2aa2ca0
+2021/03/14-01:20:29.789029 7fbad98eca80 Options.max_file_opening_threads: 16
+2021/03/14-01:20:29.789029 7fbad98eca80 Options.statistics: (nil)
+2021/03/14-01:20:29.789030 7fbad98eca80 Options.use_fsync: 0
+2021/03/14-01:20:29.789031 7fbad98eca80 Options.max_log_file_size: 0
+2021/03/14-01:20:29.789032 7fbad98eca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:20:29.789033 7fbad98eca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:20:29.789033 7fbad98eca80 Options.keep_log_file_num: 1000
+2021/03/14-01:20:29.789034 7fbad98eca80 Options.recycle_log_file_num: 0
+2021/03/14-01:20:29.789035 7fbad98eca80 Options.allow_fallocate: 1
+2021/03/14-01:20:29.789035 7fbad98eca80 Options.allow_mmap_reads: 0
+2021/03/14-01:20:29.789036 7fbad98eca80 Options.allow_mmap_writes: 0
+2021/03/14-01:20:29.789036 7fbad98eca80 Options.use_direct_reads: 0
+2021/03/14-01:20:29.789037 7fbad98eca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:20:29.789038 7fbad98eca80 Options.create_missing_column_families: 0
+2021/03/14-01:20:29.789038 7fbad98eca80 Options.db_log_dir:
+2021/03/14-01:20:29.789039 7fbad98eca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:20:29.789040 7fbad98eca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:20:29.789040 7fbad98eca80 Options.max_subcompactions: 1
+2021/03/14-01:20:29.789041 7fbad98eca80 Options.max_background_flushes: -1
+2021/03/14-01:20:29.789042 7fbad98eca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:20:29.789042 7fbad98eca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:20:29.789043 7fbad98eca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:20:29.789044 7fbad98eca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:20:29.789044 7fbad98eca80 Options.advise_random_on_open: 1
+2021/03/14-01:20:29.789045 7fbad98eca80 Options.db_write_buffer_size: 0
+2021/03/14-01:20:29.789046 7fbad98eca80 Options.write_buffer_manager: 0x2a8ab90
+2021/03/14-01:20:29.789046 7fbad98eca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:20:29.789047 7fbad98eca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:20:29.789048 7fbad98eca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:20:29.789048 7fbad98eca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:20:29.789049 7fbad98eca80 Options.rate_limiter: (nil)
+2021/03/14-01:20:29.789051 7fbad98eca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:20:29.789061 7fbad98eca80 Options.wal_recovery_mode: 2
+2021/03/14-01:20:29.789062 7fbad98eca80 Options.enable_thread_tracking: 0
+2021/03/14-01:20:29.789063 7fbad98eca80 Options.enable_pipelined_write: 0
+2021/03/14-01:20:29.789063 7fbad98eca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:20:29.789064 7fbad98eca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:20:29.789065 7fbad98eca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:20:29.789065 7fbad98eca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:20:29.789066 7fbad98eca80 Options.row_cache: None
+2021/03/14-01:20:29.789067 7fbad98eca80 Options.wal_filter: None
+2021/03/14-01:20:29.789067 7fbad98eca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:20:29.789068 7fbad98eca80 Options.allow_ingest_behind: 0
+2021/03/14-01:20:29.789069 7fbad98eca80 Options.preserve_deletes: 0
+2021/03/14-01:20:29.789069 7fbad98eca80 Options.two_write_queues: 0
+2021/03/14-01:20:29.789070 7fbad98eca80 Options.manual_wal_flush: 0
+2021/03/14-01:20:29.789071 7fbad98eca80 Options.max_background_jobs: 16
+2021/03/14-01:20:29.789072 7fbad98eca80 Options.max_background_compactions: -1
+2021/03/14-01:20:29.789073 7fbad98eca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:20:29.789073 7fbad98eca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:20:29.789074 7fbad98eca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:20:29.789075 7fbad98eca80 Options.max_total_wal_size: 0
+2021/03/14-01:20:29.789076 7fbad98eca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:20:29.789076 7fbad98eca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:20:29.789077 7fbad98eca80 Options.max_open_files: -1
+2021/03/14-01:20:29.789078 7fbad98eca80 Options.bytes_per_sync: 0
+2021/03/14-01:20:29.789078 7fbad98eca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:20:29.789079 7fbad98eca80 Options.compaction_readahead_size: 0
+2021/03/14-01:20:29.789079 7fbad98eca80 Compression algorithms supported:
+2021/03/14-01:20:29.789080 7fbad98eca80 Snappy supported: 1
+2021/03/14-01:20:29.789081 7fbad98eca80 Zlib supported: 1
+2021/03/14-01:20:29.789082 7fbad98eca80 Bzip supported: 1
+2021/03/14-01:20:29.789082 7fbad98eca80 LZ4 supported: 1
+2021/03/14-01:20:29.789083 7fbad98eca80 ZSTDNotFinal supported: 1
+2021/03/14-01:20:29.789088 7fbad98eca80 ZSTD supported: 1
+2021/03/14-01:20:29.789093 7fbad98eca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:20:29.789095 7fbad98eca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:20:29.789220 7fbad98eca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:20:29.789304 7fbad98eca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:20:29.789306 7fbad98eca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:20:29.789307 7fbad98eca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:20:29.789308 7fbad98eca80 Options.compaction_filter: None
+2021/03/14-01:20:29.789309 7fbad98eca80 Options.compaction_filter_factory: None
+2021/03/14-01:20:29.789310 7fbad98eca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:20:29.789311 7fbad98eca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:20:29.789328 7fbad98eca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2a9a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2a7fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:20:29.789329 7fbad98eca80 Options.write_buffer_size: 134217728
+2021/03/14-01:20:29.789330 7fbad98eca80 Options.max_write_buffer_number: 6
+2021/03/14-01:20:29.789331 7fbad98eca80 Options.compression[0]: NoCompression
+2021/03/14-01:20:29.789331 7fbad98eca80 Options.compression[1]: NoCompression
+2021/03/14-01:20:29.789332 7fbad98eca80 Options.compression[2]: Snappy
+2021/03/14-01:20:29.789333 7fbad98eca80 Options.compression[3]: Snappy
+2021/03/14-01:20:29.789333 7fbad98eca80 Options.compression[4]: Snappy
+2021/03/14-01:20:29.789334 7fbad98eca80 Options.compression[5]: Snappy
+2021/03/14-01:20:29.789335 7fbad98eca80 Options.compression[6]: Snappy
+2021/03/14-01:20:29.789335 7fbad98eca80 Options.bottommost_compression: Disabled
+2021/03/14-01:20:29.789336 7fbad98eca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:20:29.789337 7fbad98eca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:20:29.789338 7fbad98eca80 Options.num_levels: 7
+2021/03/14-01:20:29.789338 7fbad98eca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:20:29.789339 7fbad98eca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:20:29.789340 7fbad98eca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:20:29.789341 7fbad98eca80 Options.compression_opts.level: -1
+2021/03/14-01:20:29.789341 7fbad98eca80 Options.compression_opts.strategy: 0
+2021/03/14-01:20:29.789342 7fbad98eca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:20:29.789343 7fbad98eca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:20:29.789343 7fbad98eca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:20:29.789344 7fbad98eca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:20:29.789345 7fbad98eca80 Options.target_file_size_base: 67108864
+2021/03/14-01:20:29.789346 7fbad98eca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:20:29.789346 7fbad98eca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:20:29.789347 7fbad98eca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:20:29.789348 7fbad98eca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:20:29.789350 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:20:29.789360 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:20:29.789361 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:20:29.789362 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:20:29.789362 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:20:29.789363 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:20:29.789364 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:20:29.789364 7fbad98eca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:20:29.789365 7fbad98eca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:20:29.789366 7fbad98eca80 Options.arena_block_size: 16777216
+2021/03/14-01:20:29.789366 7fbad98eca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:20:29.789367 7fbad98eca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:20:29.789368 7fbad98eca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:20:29.789368 7fbad98eca80 Options.disable_auto_compactions: 0
+2021/03/14-01:20:29.789371 7fbad98eca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:20:29.789372 7fbad98eca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:20:29.789372 7fbad98eca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:20:29.789373 7fbad98eca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:20:29.789374 7fbad98eca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:20:29.789374 7fbad98eca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:20:29.789375 7fbad98eca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:20:29.789376 7fbad98eca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:20:29.789377 7fbad98eca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:20:29.789377 7fbad98eca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:20:29.789378 7fbad98eca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:20:29.789379 7fbad98eca80 Options.table_properties_collectors:
+2021/03/14-01:20:29.789379 7fbad98eca80 Options.inplace_update_support: 0
+2021/03/14-01:20:29.789380 7fbad98eca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:20:29.789381 7fbad98eca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:20:29.789382 7fbad98eca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:20:29.789383 7fbad98eca80 Options.bloom_locality: 0
+2021/03/14-01:20:29.789383 7fbad98eca80 Options.max_successive_merges: 0
+2021/03/14-01:20:29.789384 7fbad98eca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:20:29.789385 7fbad98eca80 Options.paranoid_file_checks: 0
+2021/03/14-01:20:29.789385 7fbad98eca80 Options.force_consistency_checks: 0
+2021/03/14-01:20:29.789386 7fbad98eca80 Options.report_bg_io_stats: 0
+2021/03/14-01:20:29.789920 7fbad98eca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:20:29.789923 7fbad98eca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:20:29.790077 7fbad98eca80 EVENT_LOG_v1 {"time_micros": 1615681229790063, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:20:29.790084 7fbad98eca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:20:30.465376 7fbad98eca80 EVENT_LOG_v1 {"time_micros": 1615681230465373, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681231160380 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681231160380
new file mode 100644
index 0000000..a0cea93
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681231160380
@@ -0,0 +1,186 @@
+2021/03/14-01:20:30.477763 7fbad98eca80 RocksDB version: 5.11.3
+2021/03/14-01:20:30.477816 7fbad98eca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:20:30.477818 7fbad98eca80 Compile date Mar 13 2021
+2021/03/14-01:20:30.477820 7fbad98eca80 DB SUMMARY
+2021/03/14-01:20:30.477932 7fbad98eca80 CURRENT file: CURRENT
+2021/03/14-01:20:30.477933 7fbad98eca80 IDENTITY file: IDENTITY
+2021/03/14-01:20:30.477944 7fbad98eca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:20:30.477945 7fbad98eca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:20:30.477946 7fbad98eca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:20:30.477952 7fbad98eca80 Options.error_if_exists: 0
+2021/03/14-01:20:30.477953 7fbad98eca80 Options.create_if_missing: 1
+2021/03/14-01:20:30.477953 7fbad98eca80 Options.paranoid_checks: 1
+2021/03/14-01:20:30.477954 7fbad98eca80 Options.env: 0x7fbada2a6080
+2021/03/14-01:20:30.477954 7fbad98eca80 Options.info_log: 0x2aa2ca0
+2021/03/14-01:20:30.477955 7fbad98eca80 Options.max_file_opening_threads: 16
+2021/03/14-01:20:30.477956 7fbad98eca80 Options.statistics: (nil)
+2021/03/14-01:20:30.477956 7fbad98eca80 Options.use_fsync: 0
+2021/03/14-01:20:30.477957 7fbad98eca80 Options.max_log_file_size: 0
+2021/03/14-01:20:30.477958 7fbad98eca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:20:30.477958 7fbad98eca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:20:30.477959 7fbad98eca80 Options.keep_log_file_num: 1000
+2021/03/14-01:20:30.477959 7fbad98eca80 Options.recycle_log_file_num: 0
+2021/03/14-01:20:30.477960 7fbad98eca80 Options.allow_fallocate: 1
+2021/03/14-01:20:30.477961 7fbad98eca80 Options.allow_mmap_reads: 0
+2021/03/14-01:20:30.477961 7fbad98eca80 Options.allow_mmap_writes: 0
+2021/03/14-01:20:30.477962 7fbad98eca80 Options.use_direct_reads: 0
+2021/03/14-01:20:30.477962 7fbad98eca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:20:30.477963 7fbad98eca80 Options.create_missing_column_families: 0
+2021/03/14-01:20:30.477963 7fbad98eca80 Options.db_log_dir:
+2021/03/14-01:20:30.477964 7fbad98eca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:20:30.477964 7fbad98eca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:20:30.477965 7fbad98eca80 Options.max_subcompactions: 1
+2021/03/14-01:20:30.477966 7fbad98eca80 Options.max_background_flushes: -1
+2021/03/14-01:20:30.477966 7fbad98eca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:20:30.477967 7fbad98eca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:20:30.477967 7fbad98eca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:20:30.477968 7fbad98eca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:20:30.477968 7fbad98eca80 Options.advise_random_on_open: 1
+2021/03/14-01:20:30.477969 7fbad98eca80 Options.db_write_buffer_size: 0
+2021/03/14-01:20:30.477970 7fbad98eca80 Options.write_buffer_manager: 0x2a8ab90
+2021/03/14-01:20:30.477970 7fbad98eca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:20:30.477971 7fbad98eca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:20:30.477971 7fbad98eca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:20:30.477972 7fbad98eca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:20:30.477972 7fbad98eca80 Options.rate_limiter: (nil)
+2021/03/14-01:20:30.477974 7fbad98eca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:20:30.477981 7fbad98eca80 Options.wal_recovery_mode: 2
+2021/03/14-01:20:30.477982 7fbad98eca80 Options.enable_thread_tracking: 0
+2021/03/14-01:20:30.477982 7fbad98eca80 Options.enable_pipelined_write: 0
+2021/03/14-01:20:30.477983 7fbad98eca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:20:30.477984 7fbad98eca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:20:30.477984 7fbad98eca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:20:30.477985 7fbad98eca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:20:30.477985 7fbad98eca80 Options.row_cache: None
+2021/03/14-01:20:30.477986 7fbad98eca80 Options.wal_filter: None
+2021/03/14-01:20:30.477986 7fbad98eca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:20:30.477987 7fbad98eca80 Options.allow_ingest_behind: 0
+2021/03/14-01:20:30.477987 7fbad98eca80 Options.preserve_deletes: 0
+2021/03/14-01:20:30.477988 7fbad98eca80 Options.two_write_queues: 0
+2021/03/14-01:20:30.477989 7fbad98eca80 Options.manual_wal_flush: 0
+2021/03/14-01:20:30.477990 7fbad98eca80 Options.max_background_jobs: 16
+2021/03/14-01:20:30.477990 7fbad98eca80 Options.max_background_compactions: -1
+2021/03/14-01:20:30.477991 7fbad98eca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:20:30.477991 7fbad98eca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:20:30.477992 7fbad98eca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:20:30.477993 7fbad98eca80 Options.max_total_wal_size: 0
+2021/03/14-01:20:30.477993 7fbad98eca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:20:30.477994 7fbad98eca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:20:30.477994 7fbad98eca80 Options.max_open_files: -1
+2021/03/14-01:20:30.477995 7fbad98eca80 Options.bytes_per_sync: 0
+2021/03/14-01:20:30.477995 7fbad98eca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:20:30.477996 7fbad98eca80 Options.compaction_readahead_size: 0
+2021/03/14-01:20:30.477997 7fbad98eca80 Compression algorithms supported:
+2021/03/14-01:20:30.477997 7fbad98eca80 Snappy supported: 1
+2021/03/14-01:20:30.477998 7fbad98eca80 Zlib supported: 1
+2021/03/14-01:20:30.477998 7fbad98eca80 Bzip supported: 1
+2021/03/14-01:20:30.477999 7fbad98eca80 LZ4 supported: 1
+2021/03/14-01:20:30.477999 7fbad98eca80 ZSTDNotFinal supported: 1
+2021/03/14-01:20:30.478003 7fbad98eca80 ZSTD supported: 1
+2021/03/14-01:20:30.478007 7fbad98eca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:20:30.478008 7fbad98eca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:20:30.478099 7fbad98eca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:20:30.478154 7fbad98eca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:20:30.478155 7fbad98eca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:20:30.478156 7fbad98eca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:20:30.478157 7fbad98eca80 Options.compaction_filter: None
+2021/03/14-01:20:30.478158 7fbad98eca80 Options.compaction_filter_factory: None
+2021/03/14-01:20:30.478158 7fbad98eca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:20:30.478159 7fbad98eca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:20:30.478173 7fbad98eca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2a9a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2a7fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:20:30.478174 7fbad98eca80 Options.write_buffer_size: 134217728
+2021/03/14-01:20:30.478174 7fbad98eca80 Options.max_write_buffer_number: 6
+2021/03/14-01:20:30.478175 7fbad98eca80 Options.compression[0]: NoCompression
+2021/03/14-01:20:30.478176 7fbad98eca80 Options.compression[1]: NoCompression
+2021/03/14-01:20:30.478176 7fbad98eca80 Options.compression[2]: Snappy
+2021/03/14-01:20:30.478177 7fbad98eca80 Options.compression[3]: Snappy
+2021/03/14-01:20:30.478178 7fbad98eca80 Options.compression[4]: Snappy
+2021/03/14-01:20:30.478178 7fbad98eca80 Options.compression[5]: Snappy
+2021/03/14-01:20:30.478179 7fbad98eca80 Options.compression[6]: Snappy
+2021/03/14-01:20:30.478179 7fbad98eca80 Options.bottommost_compression: Disabled
+2021/03/14-01:20:30.478180 7fbad98eca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:20:30.478181 7fbad98eca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:20:30.478181 7fbad98eca80 Options.num_levels: 7
+2021/03/14-01:20:30.478182 7fbad98eca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:20:30.478182 7fbad98eca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:20:30.478183 7fbad98eca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:20:30.478183 7fbad98eca80 Options.compression_opts.level: -1
+2021/03/14-01:20:30.478184 7fbad98eca80 Options.compression_opts.strategy: 0
+2021/03/14-01:20:30.478185 7fbad98eca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:20:30.478185 7fbad98eca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:20:30.478186 7fbad98eca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:20:30.478186 7fbad98eca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:20:30.478187 7fbad98eca80 Options.target_file_size_base: 67108864
+2021/03/14-01:20:30.478187 7fbad98eca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:20:30.478188 7fbad98eca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:20:30.478189 7fbad98eca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:20:30.478189 7fbad98eca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:20:30.478191 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:20:30.478198 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:20:30.478199 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:20:30.478199 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:20:30.478200 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:20:30.478200 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:20:30.478201 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:20:30.478202 7fbad98eca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:20:30.478202 7fbad98eca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:20:30.478203 7fbad98eca80 Options.arena_block_size: 16777216
+2021/03/14-01:20:30.478203 7fbad98eca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:20:30.478204 7fbad98eca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:20:30.478204 7fbad98eca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:20:30.478205 7fbad98eca80 Options.disable_auto_compactions: 0
+2021/03/14-01:20:30.478207 7fbad98eca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:20:30.478207 7fbad98eca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:20:30.478208 7fbad98eca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:20:30.478209 7fbad98eca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:20:30.478209 7fbad98eca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:20:30.478210 7fbad98eca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:20:30.478210 7fbad98eca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:20:30.478211 7fbad98eca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:20:30.478212 7fbad98eca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:20:30.478212 7fbad98eca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:20:30.478213 7fbad98eca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:20:30.478213 7fbad98eca80 Options.table_properties_collectors:
+2021/03/14-01:20:30.478214 7fbad98eca80 Options.inplace_update_support: 0
+2021/03/14-01:20:30.478215 7fbad98eca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:20:30.478215 7fbad98eca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:20:30.478216 7fbad98eca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:20:30.478217 7fbad98eca80 Options.bloom_locality: 0
+2021/03/14-01:20:30.478217 7fbad98eca80 Options.max_successive_merges: 0
+2021/03/14-01:20:30.478218 7fbad98eca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:20:30.478218 7fbad98eca80 Options.paranoid_file_checks: 0
+2021/03/14-01:20:30.478219 7fbad98eca80 Options.force_consistency_checks: 0
+2021/03/14-01:20:30.478219 7fbad98eca80 Options.report_bg_io_stats: 0
+2021/03/14-01:20:30.478593 7fbad98eca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:20:30.478596 7fbad98eca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:20:30.478730 7fbad98eca80 EVENT_LOG_v1 {"time_micros": 1615681230478719, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:20:30.478735 7fbad98eca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:20:31.148288 7fbad98eca80 EVENT_LOG_v1 {"time_micros": 1615681231148284, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681231828487 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681231828487
new file mode 100644
index 0000000..7f6d3af
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681231828487
@@ -0,0 +1,186 @@
+2021/03/14-01:20:31.160752 7fbad98eca80 RocksDB version: 5.11.3
+2021/03/14-01:20:31.160807 7fbad98eca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:20:31.160808 7fbad98eca80 Compile date Mar 13 2021
+2021/03/14-01:20:31.160811 7fbad98eca80 DB SUMMARY
+2021/03/14-01:20:31.160923 7fbad98eca80 CURRENT file: CURRENT
+2021/03/14-01:20:31.160924 7fbad98eca80 IDENTITY file: IDENTITY
+2021/03/14-01:20:31.160935 7fbad98eca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:20:31.160937 7fbad98eca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:20:31.160937 7fbad98eca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:20:31.160944 7fbad98eca80 Options.error_if_exists: 0
+2021/03/14-01:20:31.160945 7fbad98eca80 Options.create_if_missing: 1
+2021/03/14-01:20:31.160945 7fbad98eca80 Options.paranoid_checks: 1
+2021/03/14-01:20:31.160946 7fbad98eca80 Options.env: 0x7fbada2a6080
+2021/03/14-01:20:31.160946 7fbad98eca80 Options.info_log: 0x2aa2ca0
+2021/03/14-01:20:31.160947 7fbad98eca80 Options.max_file_opening_threads: 16
+2021/03/14-01:20:31.160948 7fbad98eca80 Options.statistics: (nil)
+2021/03/14-01:20:31.160948 7fbad98eca80 Options.use_fsync: 0
+2021/03/14-01:20:31.160949 7fbad98eca80 Options.max_log_file_size: 0
+2021/03/14-01:20:31.160950 7fbad98eca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:20:31.160950 7fbad98eca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:20:31.160951 7fbad98eca80 Options.keep_log_file_num: 1000
+2021/03/14-01:20:31.160951 7fbad98eca80 Options.recycle_log_file_num: 0
+2021/03/14-01:20:31.160952 7fbad98eca80 Options.allow_fallocate: 1
+2021/03/14-01:20:31.160952 7fbad98eca80 Options.allow_mmap_reads: 0
+2021/03/14-01:20:31.160953 7fbad98eca80 Options.allow_mmap_writes: 0
+2021/03/14-01:20:31.160954 7fbad98eca80 Options.use_direct_reads: 0
+2021/03/14-01:20:31.160954 7fbad98eca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:20:31.160955 7fbad98eca80 Options.create_missing_column_families: 0
+2021/03/14-01:20:31.160955 7fbad98eca80 Options.db_log_dir:
+2021/03/14-01:20:31.160956 7fbad98eca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:20:31.160956 7fbad98eca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:20:31.160957 7fbad98eca80 Options.max_subcompactions: 1
+2021/03/14-01:20:31.160957 7fbad98eca80 Options.max_background_flushes: -1
+2021/03/14-01:20:31.160958 7fbad98eca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:20:31.160959 7fbad98eca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:20:31.160959 7fbad98eca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:20:31.160960 7fbad98eca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:20:31.160960 7fbad98eca80 Options.advise_random_on_open: 1
+2021/03/14-01:20:31.160961 7fbad98eca80 Options.db_write_buffer_size: 0
+2021/03/14-01:20:31.160961 7fbad98eca80 Options.write_buffer_manager: 0x2a8ab90
+2021/03/14-01:20:31.160962 7fbad98eca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:20:31.160962 7fbad98eca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:20:31.160963 7fbad98eca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:20:31.160964 7fbad98eca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:20:31.160964 7fbad98eca80 Options.rate_limiter: (nil)
+2021/03/14-01:20:31.160965 7fbad98eca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:20:31.160973 7fbad98eca80 Options.wal_recovery_mode: 2
+2021/03/14-01:20:31.160974 7fbad98eca80 Options.enable_thread_tracking: 0
+2021/03/14-01:20:31.160974 7fbad98eca80 Options.enable_pipelined_write: 0
+2021/03/14-01:20:31.160975 7fbad98eca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:20:31.160975 7fbad98eca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:20:31.160976 7fbad98eca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:20:31.160977 7fbad98eca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:20:31.160977 7fbad98eca80 Options.row_cache: None
+2021/03/14-01:20:31.160978 7fbad98eca80 Options.wal_filter: None
+2021/03/14-01:20:31.160978 7fbad98eca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:20:31.160979 7fbad98eca80 Options.allow_ingest_behind: 0
+2021/03/14-01:20:31.160979 7fbad98eca80 Options.preserve_deletes: 0
+2021/03/14-01:20:31.160980 7fbad98eca80 Options.two_write_queues: 0
+2021/03/14-01:20:31.160980 7fbad98eca80 Options.manual_wal_flush: 0
+2021/03/14-01:20:31.160982 7fbad98eca80 Options.max_background_jobs: 16
+2021/03/14-01:20:31.160982 7fbad98eca80 Options.max_background_compactions: -1
+2021/03/14-01:20:31.160983 7fbad98eca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:20:31.160983 7fbad98eca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:20:31.160984 7fbad98eca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:20:31.160984 7fbad98eca80 Options.max_total_wal_size: 0
+2021/03/14-01:20:31.160985 7fbad98eca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:20:31.160986 7fbad98eca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:20:31.160986 7fbad98eca80 Options.max_open_files: -1
+2021/03/14-01:20:31.160987 7fbad98eca80 Options.bytes_per_sync: 0
+2021/03/14-01:20:31.160987 7fbad98eca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:20:31.160988 7fbad98eca80 Options.compaction_readahead_size: 0
+2021/03/14-01:20:31.160988 7fbad98eca80 Compression algorithms supported:
+2021/03/14-01:20:31.160989 7fbad98eca80 Snappy supported: 1
+2021/03/14-01:20:31.160990 7fbad98eca80 Zlib supported: 1
+2021/03/14-01:20:31.160990 7fbad98eca80 Bzip supported: 1
+2021/03/14-01:20:31.160991 7fbad98eca80 LZ4 supported: 1
+2021/03/14-01:20:31.160991 7fbad98eca80 ZSTDNotFinal supported: 1
+2021/03/14-01:20:31.160995 7fbad98eca80 ZSTD supported: 1
+2021/03/14-01:20:31.160998 7fbad98eca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:20:31.161000 7fbad98eca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:20:31.161090 7fbad98eca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:20:31.161145 7fbad98eca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:20:31.161147 7fbad98eca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:20:31.161148 7fbad98eca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:20:31.161148 7fbad98eca80 Options.compaction_filter: None
+2021/03/14-01:20:31.161149 7fbad98eca80 Options.compaction_filter_factory: None
+2021/03/14-01:20:31.161150 7fbad98eca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:20:31.161150 7fbad98eca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:20:31.161165 7fbad98eca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2a9a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2a7fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:20:31.161165 7fbad98eca80 Options.write_buffer_size: 134217728
+2021/03/14-01:20:31.161166 7fbad98eca80 Options.max_write_buffer_number: 6
+2021/03/14-01:20:31.161167 7fbad98eca80 Options.compression[0]: NoCompression
+2021/03/14-01:20:31.161167 7fbad98eca80 Options.compression[1]: NoCompression
+2021/03/14-01:20:31.161168 7fbad98eca80 Options.compression[2]: Snappy
+2021/03/14-01:20:31.161169 7fbad98eca80 Options.compression[3]: Snappy
+2021/03/14-01:20:31.161169 7fbad98eca80 Options.compression[4]: Snappy
+2021/03/14-01:20:31.161170 7fbad98eca80 Options.compression[5]: Snappy
+2021/03/14-01:20:31.161170 7fbad98eca80 Options.compression[6]: Snappy
+2021/03/14-01:20:31.161171 7fbad98eca80 Options.bottommost_compression: Disabled
+2021/03/14-01:20:31.161172 7fbad98eca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:20:31.161172 7fbad98eca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:20:31.161173 7fbad98eca80 Options.num_levels: 7
+2021/03/14-01:20:31.161174 7fbad98eca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:20:31.161174 7fbad98eca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:20:31.161175 7fbad98eca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:20:31.161175 7fbad98eca80 Options.compression_opts.level: -1
+2021/03/14-01:20:31.161176 7fbad98eca80 Options.compression_opts.strategy: 0
+2021/03/14-01:20:31.161176 7fbad98eca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:20:31.161177 7fbad98eca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:20:31.161178 7fbad98eca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:20:31.161178 7fbad98eca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:20:31.161179 7fbad98eca80 Options.target_file_size_base: 67108864
+2021/03/14-01:20:31.161179 7fbad98eca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:20:31.161180 7fbad98eca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:20:31.161181 7fbad98eca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:20:31.161181 7fbad98eca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:20:31.161183 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:20:31.161190 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:20:31.161191 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:20:31.161191 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:20:31.161192 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:20:31.161192 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:20:31.161193 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:20:31.161193 7fbad98eca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:20:31.161194 7fbad98eca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:20:31.161195 7fbad98eca80 Options.arena_block_size: 16777216
+2021/03/14-01:20:31.161195 7fbad98eca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:20:31.161196 7fbad98eca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:20:31.161196 7fbad98eca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:20:31.161197 7fbad98eca80 Options.disable_auto_compactions: 0
+2021/03/14-01:20:31.161199 7fbad98eca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:20:31.161199 7fbad98eca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:20:31.161200 7fbad98eca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:20:31.161201 7fbad98eca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:20:31.161201 7fbad98eca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:20:31.161202 7fbad98eca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:20:31.161202 7fbad98eca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:20:31.161203 7fbad98eca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:20:31.161204 7fbad98eca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:20:31.161205 7fbad98eca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:20:31.161205 7fbad98eca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:20:31.161206 7fbad98eca80 Options.table_properties_collectors:
+2021/03/14-01:20:31.161206 7fbad98eca80 Options.inplace_update_support: 0
+2021/03/14-01:20:31.161207 7fbad98eca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:20:31.161208 7fbad98eca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:20:31.161208 7fbad98eca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:20:31.161209 7fbad98eca80 Options.bloom_locality: 0
+2021/03/14-01:20:31.161210 7fbad98eca80 Options.max_successive_merges: 0
+2021/03/14-01:20:31.161210 7fbad98eca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:20:31.161211 7fbad98eca80 Options.paranoid_file_checks: 0
+2021/03/14-01:20:31.161211 7fbad98eca80 Options.force_consistency_checks: 0
+2021/03/14-01:20:31.161212 7fbad98eca80 Options.report_bg_io_stats: 0
+2021/03/14-01:20:31.161625 7fbad98eca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:20:31.161628 7fbad98eca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:20:31.161751 7fbad98eca80 EVENT_LOG_v1 {"time_micros": 1615681231161741, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:20:31.161756 7fbad98eca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:20:31.816234 7fbad98eca80 EVENT_LOG_v1 {"time_micros": 1615681231816230, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681467569369 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681467569369
new file mode 100644
index 0000000..a077b6a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681467569369
@@ -0,0 +1,186 @@
+2021/03/14-01:20:31.828851 7fbad98eca80 RocksDB version: 5.11.3
+2021/03/14-01:20:31.828902 7fbad98eca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:20:31.828904 7fbad98eca80 Compile date Mar 13 2021
+2021/03/14-01:20:31.828906 7fbad98eca80 DB SUMMARY
+2021/03/14-01:20:31.829018 7fbad98eca80 CURRENT file: CURRENT
+2021/03/14-01:20:31.829019 7fbad98eca80 IDENTITY file: IDENTITY
+2021/03/14-01:20:31.829029 7fbad98eca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:20:31.829031 7fbad98eca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:20:31.829032 7fbad98eca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:20:31.829038 7fbad98eca80 Options.error_if_exists: 0
+2021/03/14-01:20:31.829039 7fbad98eca80 Options.create_if_missing: 1
+2021/03/14-01:20:31.829039 7fbad98eca80 Options.paranoid_checks: 1
+2021/03/14-01:20:31.829040 7fbad98eca80 Options.env: 0x7fbada2a6080
+2021/03/14-01:20:31.829041 7fbad98eca80 Options.info_log: 0x2aa2ca0
+2021/03/14-01:20:31.829041 7fbad98eca80 Options.max_file_opening_threads: 16
+2021/03/14-01:20:31.829042 7fbad98eca80 Options.statistics: (nil)
+2021/03/14-01:20:31.829043 7fbad98eca80 Options.use_fsync: 0
+2021/03/14-01:20:31.829043 7fbad98eca80 Options.max_log_file_size: 0
+2021/03/14-01:20:31.829044 7fbad98eca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:20:31.829044 7fbad98eca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:20:31.829045 7fbad98eca80 Options.keep_log_file_num: 1000
+2021/03/14-01:20:31.829045 7fbad98eca80 Options.recycle_log_file_num: 0
+2021/03/14-01:20:31.829046 7fbad98eca80 Options.allow_fallocate: 1
+2021/03/14-01:20:31.829047 7fbad98eca80 Options.allow_mmap_reads: 0
+2021/03/14-01:20:31.829047 7fbad98eca80 Options.allow_mmap_writes: 0
+2021/03/14-01:20:31.829048 7fbad98eca80 Options.use_direct_reads: 0
+2021/03/14-01:20:31.829048 7fbad98eca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:20:31.829049 7fbad98eca80 Options.create_missing_column_families: 0
+2021/03/14-01:20:31.829049 7fbad98eca80 Options.db_log_dir:
+2021/03/14-01:20:31.829050 7fbad98eca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:20:31.829051 7fbad98eca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:20:31.829051 7fbad98eca80 Options.max_subcompactions: 1
+2021/03/14-01:20:31.829052 7fbad98eca80 Options.max_background_flushes: -1
+2021/03/14-01:20:31.829052 7fbad98eca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:20:31.829053 7fbad98eca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:20:31.829053 7fbad98eca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:20:31.829054 7fbad98eca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:20:31.829055 7fbad98eca80 Options.advise_random_on_open: 1
+2021/03/14-01:20:31.829055 7fbad98eca80 Options.db_write_buffer_size: 0
+2021/03/14-01:20:31.829056 7fbad98eca80 Options.write_buffer_manager: 0x2a8ab90
+2021/03/14-01:20:31.829056 7fbad98eca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:20:31.829057 7fbad98eca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:20:31.829057 7fbad98eca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:20:31.829058 7fbad98eca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:20:31.829059 7fbad98eca80 Options.rate_limiter: (nil)
+2021/03/14-01:20:31.829060 7fbad98eca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:20:31.829067 7fbad98eca80 Options.wal_recovery_mode: 2
+2021/03/14-01:20:31.829068 7fbad98eca80 Options.enable_thread_tracking: 0
+2021/03/14-01:20:31.829069 7fbad98eca80 Options.enable_pipelined_write: 0
+2021/03/14-01:20:31.829069 7fbad98eca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:20:31.829070 7fbad98eca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:20:31.829070 7fbad98eca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:20:31.829071 7fbad98eca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:20:31.829071 7fbad98eca80 Options.row_cache: None
+2021/03/14-01:20:31.829072 7fbad98eca80 Options.wal_filter: None
+2021/03/14-01:20:31.829073 7fbad98eca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:20:31.829073 7fbad98eca80 Options.allow_ingest_behind: 0
+2021/03/14-01:20:31.829074 7fbad98eca80 Options.preserve_deletes: 0
+2021/03/14-01:20:31.829074 7fbad98eca80 Options.two_write_queues: 0
+2021/03/14-01:20:31.829075 7fbad98eca80 Options.manual_wal_flush: 0
+2021/03/14-01:20:31.829076 7fbad98eca80 Options.max_background_jobs: 16
+2021/03/14-01:20:31.829076 7fbad98eca80 Options.max_background_compactions: -1
+2021/03/14-01:20:31.829077 7fbad98eca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:20:31.829078 7fbad98eca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:20:31.829078 7fbad98eca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:20:31.829079 7fbad98eca80 Options.max_total_wal_size: 0
+2021/03/14-01:20:31.829079 7fbad98eca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:20:31.829080 7fbad98eca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:20:31.829081 7fbad98eca80 Options.max_open_files: -1
+2021/03/14-01:20:31.829081 7fbad98eca80 Options.bytes_per_sync: 0
+2021/03/14-01:20:31.829082 7fbad98eca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:20:31.829082 7fbad98eca80 Options.compaction_readahead_size: 0
+2021/03/14-01:20:31.829083 7fbad98eca80 Compression algorithms supported:
+2021/03/14-01:20:31.829083 7fbad98eca80 Snappy supported: 1
+2021/03/14-01:20:31.829084 7fbad98eca80 Zlib supported: 1
+2021/03/14-01:20:31.829084 7fbad98eca80 Bzip supported: 1
+2021/03/14-01:20:31.829085 7fbad98eca80 LZ4 supported: 1
+2021/03/14-01:20:31.829086 7fbad98eca80 ZSTDNotFinal supported: 1
+2021/03/14-01:20:31.829090 7fbad98eca80 ZSTD supported: 1
+2021/03/14-01:20:31.829093 7fbad98eca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:20:31.829094 7fbad98eca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:20:31.829184 7fbad98eca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:20:31.829243 7fbad98eca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:20:31.829245 7fbad98eca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:20:31.829246 7fbad98eca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:20:31.829247 7fbad98eca80 Options.compaction_filter: None
+2021/03/14-01:20:31.829247 7fbad98eca80 Options.compaction_filter_factory: None
+2021/03/14-01:20:31.829248 7fbad98eca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:20:31.829249 7fbad98eca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:20:31.829263 7fbad98eca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2a9a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2a7fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:20:31.829264 7fbad98eca80 Options.write_buffer_size: 134217728
+2021/03/14-01:20:31.829264 7fbad98eca80 Options.max_write_buffer_number: 6
+2021/03/14-01:20:31.829265 7fbad98eca80 Options.compression[0]: NoCompression
+2021/03/14-01:20:31.829266 7fbad98eca80 Options.compression[1]: NoCompression
+2021/03/14-01:20:31.829266 7fbad98eca80 Options.compression[2]: Snappy
+2021/03/14-01:20:31.829267 7fbad98eca80 Options.compression[3]: Snappy
+2021/03/14-01:20:31.829268 7fbad98eca80 Options.compression[4]: Snappy
+2021/03/14-01:20:31.829268 7fbad98eca80 Options.compression[5]: Snappy
+2021/03/14-01:20:31.829269 7fbad98eca80 Options.compression[6]: Snappy
+2021/03/14-01:20:31.829269 7fbad98eca80 Options.bottommost_compression: Disabled
+2021/03/14-01:20:31.829270 7fbad98eca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:20:31.829271 7fbad98eca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:20:31.829271 7fbad98eca80 Options.num_levels: 7
+2021/03/14-01:20:31.829272 7fbad98eca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:20:31.829272 7fbad98eca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:20:31.829273 7fbad98eca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:20:31.829274 7fbad98eca80 Options.compression_opts.level: -1
+2021/03/14-01:20:31.829274 7fbad98eca80 Options.compression_opts.strategy: 0
+2021/03/14-01:20:31.829275 7fbad98eca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:20:31.829275 7fbad98eca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:20:31.829276 7fbad98eca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:20:31.829276 7fbad98eca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:20:31.829277 7fbad98eca80 Options.target_file_size_base: 67108864
+2021/03/14-01:20:31.829278 7fbad98eca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:20:31.829278 7fbad98eca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:20:31.829279 7fbad98eca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:20:31.829279 7fbad98eca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:20:31.829281 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:20:31.829290 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:20:31.829290 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:20:31.829291 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:20:31.829291 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:20:31.829292 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:20:31.829292 7fbad98eca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:20:31.829293 7fbad98eca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:20:31.829294 7fbad98eca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:20:31.829294 7fbad98eca80 Options.arena_block_size: 16777216
+2021/03/14-01:20:31.829295 7fbad98eca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:20:31.829295 7fbad98eca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:20:31.829296 7fbad98eca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:20:31.829297 7fbad98eca80 Options.disable_auto_compactions: 0
+2021/03/14-01:20:31.829298 7fbad98eca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:20:31.829299 7fbad98eca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:20:31.829300 7fbad98eca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:20:31.829300 7fbad98eca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:20:31.829301 7fbad98eca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:20:31.829301 7fbad98eca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:20:31.829302 7fbad98eca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:20:31.829303 7fbad98eca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:20:31.829303 7fbad98eca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:20:31.829304 7fbad98eca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:20:31.829304 7fbad98eca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:20:31.829305 7fbad98eca80 Options.table_properties_collectors:
+2021/03/14-01:20:31.829306 7fbad98eca80 Options.inplace_update_support: 0
+2021/03/14-01:20:31.829306 7fbad98eca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:20:31.829307 7fbad98eca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:20:31.829308 7fbad98eca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:20:31.829308 7fbad98eca80 Options.bloom_locality: 0
+2021/03/14-01:20:31.829309 7fbad98eca80 Options.max_successive_merges: 0
+2021/03/14-01:20:31.829309 7fbad98eca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:20:31.829310 7fbad98eca80 Options.paranoid_file_checks: 0
+2021/03/14-01:20:31.829310 7fbad98eca80 Options.force_consistency_checks: 0
+2021/03/14-01:20:31.829311 7fbad98eca80 Options.report_bg_io_stats: 0
+2021/03/14-01:20:31.829697 7fbad98eca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:20:31.829700 7fbad98eca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:20:31.829818 7fbad98eca80 EVENT_LOG_v1 {"time_micros": 1615681231829808, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:20:31.829823 7fbad98eca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:20:32.489859 7fbad98eca80 EVENT_LOG_v1 {"time_micros": 1615681232489855, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681468255400 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681468255400
new file mode 100644
index 0000000..e8faa14
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681468255400
@@ -0,0 +1,186 @@
+2021/03/14-01:24:27.569862 7f784ea19a80 RocksDB version: 5.11.3
+2021/03/14-01:24:27.569931 7f784ea19a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:24:27.569933 7f784ea19a80 Compile date Mar 13 2021
+2021/03/14-01:24:27.569940 7f784ea19a80 DB SUMMARY
+2021/03/14-01:24:27.570074 7f784ea19a80 CURRENT file: CURRENT
+2021/03/14-01:24:27.570075 7f784ea19a80 IDENTITY file: IDENTITY
+2021/03/14-01:24:27.570088 7f784ea19a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:24:27.570089 7f784ea19a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:24:27.570090 7f784ea19a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:24:27.570098 7f784ea19a80 Options.error_if_exists: 0
+2021/03/14-01:24:27.570099 7f784ea19a80 Options.create_if_missing: 1
+2021/03/14-01:24:27.570100 7f784ea19a80 Options.paranoid_checks: 1
+2021/03/14-01:24:27.570100 7f784ea19a80 Options.env: 0x7f784f3d3080
+2021/03/14-01:24:27.570101 7f784ea19a80 Options.info_log: 0x2118ca0
+2021/03/14-01:24:27.570102 7f784ea19a80 Options.max_file_opening_threads: 16
+2021/03/14-01:24:27.570102 7f784ea19a80 Options.statistics: (nil)
+2021/03/14-01:24:27.570103 7f784ea19a80 Options.use_fsync: 0
+2021/03/14-01:24:27.570104 7f784ea19a80 Options.max_log_file_size: 0
+2021/03/14-01:24:27.570104 7f784ea19a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:24:27.570105 7f784ea19a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:24:27.570106 7f784ea19a80 Options.keep_log_file_num: 1000
+2021/03/14-01:24:27.570106 7f784ea19a80 Options.recycle_log_file_num: 0
+2021/03/14-01:24:27.570107 7f784ea19a80 Options.allow_fallocate: 1
+2021/03/14-01:24:27.570108 7f784ea19a80 Options.allow_mmap_reads: 0
+2021/03/14-01:24:27.570108 7f784ea19a80 Options.allow_mmap_writes: 0
+2021/03/14-01:24:27.570109 7f784ea19a80 Options.use_direct_reads: 0
+2021/03/14-01:24:27.570110 7f784ea19a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:24:27.570110 7f784ea19a80 Options.create_missing_column_families: 0
+2021/03/14-01:24:27.570111 7f784ea19a80 Options.db_log_dir:
+2021/03/14-01:24:27.570112 7f784ea19a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:24:27.570112 7f784ea19a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:24:27.570113 7f784ea19a80 Options.max_subcompactions: 1
+2021/03/14-01:24:27.570114 7f784ea19a80 Options.max_background_flushes: -1
+2021/03/14-01:24:27.570114 7f784ea19a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:24:27.570115 7f784ea19a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:24:27.570116 7f784ea19a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:24:27.570116 7f784ea19a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:24:27.570117 7f784ea19a80 Options.advise_random_on_open: 1
+2021/03/14-01:24:27.570118 7f784ea19a80 Options.db_write_buffer_size: 0
+2021/03/14-01:24:27.570118 7f784ea19a80 Options.write_buffer_manager: 0x2100b90
+2021/03/14-01:24:27.570119 7f784ea19a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:24:27.570120 7f784ea19a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:24:27.570120 7f784ea19a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:24:27.570121 7f784ea19a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:24:27.570121 7f784ea19a80 Options.rate_limiter: (nil)
+2021/03/14-01:24:27.570123 7f784ea19a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:24:27.570132 7f784ea19a80 Options.wal_recovery_mode: 2
+2021/03/14-01:24:27.570133 7f784ea19a80 Options.enable_thread_tracking: 0
+2021/03/14-01:24:27.570134 7f784ea19a80 Options.enable_pipelined_write: 0
+2021/03/14-01:24:27.570135 7f784ea19a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:24:27.570135 7f784ea19a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:24:27.570136 7f784ea19a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:24:27.570136 7f784ea19a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:24:27.570137 7f784ea19a80 Options.row_cache: None
+2021/03/14-01:24:27.570138 7f784ea19a80 Options.wal_filter: None
+2021/03/14-01:24:27.570138 7f784ea19a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:24:27.570139 7f784ea19a80 Options.allow_ingest_behind: 0
+2021/03/14-01:24:27.570140 7f784ea19a80 Options.preserve_deletes: 0
+2021/03/14-01:24:27.570140 7f784ea19a80 Options.two_write_queues: 0
+2021/03/14-01:24:27.570141 7f784ea19a80 Options.manual_wal_flush: 0
+2021/03/14-01:24:27.570142 7f784ea19a80 Options.max_background_jobs: 16
+2021/03/14-01:24:27.570143 7f784ea19a80 Options.max_background_compactions: -1
+2021/03/14-01:24:27.570144 7f784ea19a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:24:27.570144 7f784ea19a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:24:27.570145 7f784ea19a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:24:27.570146 7f784ea19a80 Options.max_total_wal_size: 0
+2021/03/14-01:24:27.570146 7f784ea19a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:24:27.570147 7f784ea19a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:24:27.570148 7f784ea19a80 Options.max_open_files: -1
+2021/03/14-01:24:27.570148 7f784ea19a80 Options.bytes_per_sync: 0
+2021/03/14-01:24:27.570149 7f784ea19a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:24:27.570150 7f784ea19a80 Options.compaction_readahead_size: 0
+2021/03/14-01:24:27.570150 7f784ea19a80 Compression algorithms supported:
+2021/03/14-01:24:27.570151 7f784ea19a80 Snappy supported: 1
+2021/03/14-01:24:27.570152 7f784ea19a80 Zlib supported: 1
+2021/03/14-01:24:27.570152 7f784ea19a80 Bzip supported: 1
+2021/03/14-01:24:27.570153 7f784ea19a80 LZ4 supported: 1
+2021/03/14-01:24:27.570154 7f784ea19a80 ZSTDNotFinal supported: 1
+2021/03/14-01:24:27.570159 7f784ea19a80 ZSTD supported: 1
+2021/03/14-01:24:27.570163 7f784ea19a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:24:27.570165 7f784ea19a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:24:27.570300 7f784ea19a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:24:27.570380 7f784ea19a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:24:27.570382 7f784ea19a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:24:27.570383 7f784ea19a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:24:27.570384 7f784ea19a80 Options.compaction_filter: None
+2021/03/14-01:24:27.570385 7f784ea19a80 Options.compaction_filter_factory: None
+2021/03/14-01:24:27.570386 7f784ea19a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:24:27.570387 7f784ea19a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:24:27.570404 7f784ea19a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2110520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20f5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:24:27.570405 7f784ea19a80 Options.write_buffer_size: 134217728
+2021/03/14-01:24:27.570405 7f784ea19a80 Options.max_write_buffer_number: 6
+2021/03/14-01:24:27.570406 7f784ea19a80 Options.compression[0]: NoCompression
+2021/03/14-01:24:27.570407 7f784ea19a80 Options.compression[1]: NoCompression
+2021/03/14-01:24:27.570408 7f784ea19a80 Options.compression[2]: Snappy
+2021/03/14-01:24:27.570408 7f784ea19a80 Options.compression[3]: Snappy
+2021/03/14-01:24:27.570409 7f784ea19a80 Options.compression[4]: Snappy
+2021/03/14-01:24:27.570410 7f784ea19a80 Options.compression[5]: Snappy
+2021/03/14-01:24:27.570410 7f784ea19a80 Options.compression[6]: Snappy
+2021/03/14-01:24:27.570411 7f784ea19a80 Options.bottommost_compression: Disabled
+2021/03/14-01:24:27.570412 7f784ea19a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:24:27.570412 7f784ea19a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:24:27.570413 7f784ea19a80 Options.num_levels: 7
+2021/03/14-01:24:27.570414 7f784ea19a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:24:27.570414 7f784ea19a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:24:27.570415 7f784ea19a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:24:27.570416 7f784ea19a80 Options.compression_opts.level: -1
+2021/03/14-01:24:27.570416 7f784ea19a80 Options.compression_opts.strategy: 0
+2021/03/14-01:24:27.570417 7f784ea19a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:24:27.570418 7f784ea19a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:24:27.570418 7f784ea19a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:24:27.570419 7f784ea19a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:24:27.570420 7f784ea19a80 Options.target_file_size_base: 67108864
+2021/03/14-01:24:27.570420 7f784ea19a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:24:27.570421 7f784ea19a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:24:27.570422 7f784ea19a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:24:27.570422 7f784ea19a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:24:27.570424 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:24:27.570434 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:24:27.570435 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:24:27.570435 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:24:27.570436 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:24:27.570436 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:24:27.570437 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:24:27.570438 7f784ea19a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:24:27.570438 7f784ea19a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:24:27.570439 7f784ea19a80 Options.arena_block_size: 16777216
+2021/03/14-01:24:27.570440 7f784ea19a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:24:27.570440 7f784ea19a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:24:27.570441 7f784ea19a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:24:27.570442 7f784ea19a80 Options.disable_auto_compactions: 0
+2021/03/14-01:24:27.570443 7f784ea19a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:24:27.570444 7f784ea19a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:24:27.570445 7f784ea19a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:24:27.570446 7f784ea19a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:24:27.570446 7f784ea19a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:24:27.570447 7f784ea19a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:24:27.570448 7f784ea19a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:24:27.570449 7f784ea19a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:24:27.570449 7f784ea19a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:24:27.570450 7f784ea19a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:24:27.570451 7f784ea19a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:24:27.570451 7f784ea19a80 Options.table_properties_collectors:
+2021/03/14-01:24:27.570452 7f784ea19a80 Options.inplace_update_support: 0
+2021/03/14-01:24:27.570452 7f784ea19a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:24:27.570453 7f784ea19a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:24:27.570454 7f784ea19a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:24:27.570455 7f784ea19a80 Options.bloom_locality: 0
+2021/03/14-01:24:27.570455 7f784ea19a80 Options.max_successive_merges: 0
+2021/03/14-01:24:27.570456 7f784ea19a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:24:27.570456 7f784ea19a80 Options.paranoid_file_checks: 0
+2021/03/14-01:24:27.570457 7f784ea19a80 Options.force_consistency_checks: 0
+2021/03/14-01:24:27.570458 7f784ea19a80 Options.report_bg_io_stats: 0
+2021/03/14-01:24:27.570958 7f784ea19a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:24:27.570961 7f784ea19a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:24:27.571117 7f784ea19a80 EVENT_LOG_v1 {"time_micros": 1615681467571102, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:24:27.571124 7f784ea19a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:24:28.243602 7f784ea19a80 EVENT_LOG_v1 {"time_micros": 1615681468243599, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681468927431 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681468927431
new file mode 100644
index 0000000..2dddbcf
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681468927431
@@ -0,0 +1,186 @@
+2021/03/14-01:24:28.255781 7f784ea19a80 RocksDB version: 5.11.3
+2021/03/14-01:24:28.255834 7f784ea19a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:24:28.255835 7f784ea19a80 Compile date Mar 13 2021
+2021/03/14-01:24:28.255839 7f784ea19a80 DB SUMMARY
+2021/03/14-01:24:28.255952 7f784ea19a80 CURRENT file: CURRENT
+2021/03/14-01:24:28.255953 7f784ea19a80 IDENTITY file: IDENTITY
+2021/03/14-01:24:28.255964 7f784ea19a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:24:28.255965 7f784ea19a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:24:28.255966 7f784ea19a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:24:28.255972 7f784ea19a80 Options.error_if_exists: 0
+2021/03/14-01:24:28.255973 7f784ea19a80 Options.create_if_missing: 1
+2021/03/14-01:24:28.255974 7f784ea19a80 Options.paranoid_checks: 1
+2021/03/14-01:24:28.255974 7f784ea19a80 Options.env: 0x7f784f3d3080
+2021/03/14-01:24:28.255975 7f784ea19a80 Options.info_log: 0x2118ca0
+2021/03/14-01:24:28.255976 7f784ea19a80 Options.max_file_opening_threads: 16
+2021/03/14-01:24:28.255976 7f784ea19a80 Options.statistics: (nil)
+2021/03/14-01:24:28.255977 7f784ea19a80 Options.use_fsync: 0
+2021/03/14-01:24:28.255977 7f784ea19a80 Options.max_log_file_size: 0
+2021/03/14-01:24:28.255978 7f784ea19a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:24:28.255979 7f784ea19a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:24:28.255979 7f784ea19a80 Options.keep_log_file_num: 1000
+2021/03/14-01:24:28.255980 7f784ea19a80 Options.recycle_log_file_num: 0
+2021/03/14-01:24:28.255980 7f784ea19a80 Options.allow_fallocate: 1
+2021/03/14-01:24:28.255981 7f784ea19a80 Options.allow_mmap_reads: 0
+2021/03/14-01:24:28.255982 7f784ea19a80 Options.allow_mmap_writes: 0
+2021/03/14-01:24:28.255982 7f784ea19a80 Options.use_direct_reads: 0
+2021/03/14-01:24:28.255983 7f784ea19a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:24:28.255983 7f784ea19a80 Options.create_missing_column_families: 0
+2021/03/14-01:24:28.255984 7f784ea19a80 Options.db_log_dir:
+2021/03/14-01:24:28.255984 7f784ea19a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:24:28.255985 7f784ea19a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:24:28.255985 7f784ea19a80 Options.max_subcompactions: 1
+2021/03/14-01:24:28.255986 7f784ea19a80 Options.max_background_flushes: -1
+2021/03/14-01:24:28.255987 7f784ea19a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:24:28.255987 7f784ea19a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:24:28.255988 7f784ea19a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:24:28.255988 7f784ea19a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:24:28.255989 7f784ea19a80 Options.advise_random_on_open: 1
+2021/03/14-01:24:28.255989 7f784ea19a80 Options.db_write_buffer_size: 0
+2021/03/14-01:24:28.255990 7f784ea19a80 Options.write_buffer_manager: 0x2100b90
+2021/03/14-01:24:28.255990 7f784ea19a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:24:28.255991 7f784ea19a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:24:28.255991 7f784ea19a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:24:28.255992 7f784ea19a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:24:28.255993 7f784ea19a80 Options.rate_limiter: (nil)
+2021/03/14-01:24:28.255994 7f784ea19a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:24:28.256001 7f784ea19a80 Options.wal_recovery_mode: 2
+2021/03/14-01:24:28.256002 7f784ea19a80 Options.enable_thread_tracking: 0
+2021/03/14-01:24:28.256003 7f784ea19a80 Options.enable_pipelined_write: 0
+2021/03/14-01:24:28.256003 7f784ea19a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:24:28.256004 7f784ea19a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:24:28.256005 7f784ea19a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:24:28.256005 7f784ea19a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:24:28.256006 7f784ea19a80 Options.row_cache: None
+2021/03/14-01:24:28.256006 7f784ea19a80 Options.wal_filter: None
+2021/03/14-01:24:28.256007 7f784ea19a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:24:28.256008 7f784ea19a80 Options.allow_ingest_behind: 0
+2021/03/14-01:24:28.256008 7f784ea19a80 Options.preserve_deletes: 0
+2021/03/14-01:24:28.256009 7f784ea19a80 Options.two_write_queues: 0
+2021/03/14-01:24:28.256009 7f784ea19a80 Options.manual_wal_flush: 0
+2021/03/14-01:24:28.256010 7f784ea19a80 Options.max_background_jobs: 16
+2021/03/14-01:24:28.256011 7f784ea19a80 Options.max_background_compactions: -1
+2021/03/14-01:24:28.256011 7f784ea19a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:24:28.256012 7f784ea19a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:24:28.256013 7f784ea19a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:24:28.256013 7f784ea19a80 Options.max_total_wal_size: 0
+2021/03/14-01:24:28.256014 7f784ea19a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:24:28.256014 7f784ea19a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:24:28.256015 7f784ea19a80 Options.max_open_files: -1
+2021/03/14-01:24:28.256015 7f784ea19a80 Options.bytes_per_sync: 0
+2021/03/14-01:24:28.256016 7f784ea19a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:24:28.256016 7f784ea19a80 Options.compaction_readahead_size: 0
+2021/03/14-01:24:28.256017 7f784ea19a80 Compression algorithms supported:
+2021/03/14-01:24:28.256018 7f784ea19a80 Snappy supported: 1
+2021/03/14-01:24:28.256018 7f784ea19a80 Zlib supported: 1
+2021/03/14-01:24:28.256019 7f784ea19a80 Bzip supported: 1
+2021/03/14-01:24:28.256019 7f784ea19a80 LZ4 supported: 1
+2021/03/14-01:24:28.256020 7f784ea19a80 ZSTDNotFinal supported: 1
+2021/03/14-01:24:28.256024 7f784ea19a80 ZSTD supported: 1
+2021/03/14-01:24:28.256027 7f784ea19a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:24:28.256028 7f784ea19a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:24:28.256113 7f784ea19a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:24:28.256163 7f784ea19a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:24:28.256165 7f784ea19a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:24:28.256166 7f784ea19a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:24:28.256166 7f784ea19a80 Options.compaction_filter: None
+2021/03/14-01:24:28.256167 7f784ea19a80 Options.compaction_filter_factory: None
+2021/03/14-01:24:28.256167 7f784ea19a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:24:28.256168 7f784ea19a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:24:28.256182 7f784ea19a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2110520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20f5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:24:28.256183 7f784ea19a80 Options.write_buffer_size: 134217728
+2021/03/14-01:24:28.256183 7f784ea19a80 Options.max_write_buffer_number: 6
+2021/03/14-01:24:28.256184 7f784ea19a80 Options.compression[0]: NoCompression
+2021/03/14-01:24:28.256185 7f784ea19a80 Options.compression[1]: NoCompression
+2021/03/14-01:24:28.256186 7f784ea19a80 Options.compression[2]: Snappy
+2021/03/14-01:24:28.256186 7f784ea19a80 Options.compression[3]: Snappy
+2021/03/14-01:24:28.256187 7f784ea19a80 Options.compression[4]: Snappy
+2021/03/14-01:24:28.256187 7f784ea19a80 Options.compression[5]: Snappy
+2021/03/14-01:24:28.256188 7f784ea19a80 Options.compression[6]: Snappy
+2021/03/14-01:24:28.256189 7f784ea19a80 Options.bottommost_compression: Disabled
+2021/03/14-01:24:28.256189 7f784ea19a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:24:28.256190 7f784ea19a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:24:28.256191 7f784ea19a80 Options.num_levels: 7
+2021/03/14-01:24:28.256191 7f784ea19a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:24:28.256192 7f784ea19a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:24:28.256192 7f784ea19a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:24:28.256193 7f784ea19a80 Options.compression_opts.level: -1
+2021/03/14-01:24:28.256194 7f784ea19a80 Options.compression_opts.strategy: 0
+2021/03/14-01:24:28.256194 7f784ea19a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:24:28.256195 7f784ea19a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:24:28.256195 7f784ea19a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:24:28.256196 7f784ea19a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:24:28.256196 7f784ea19a80 Options.target_file_size_base: 67108864
+2021/03/14-01:24:28.256197 7f784ea19a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:24:28.256198 7f784ea19a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:24:28.256198 7f784ea19a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:24:28.256199 7f784ea19a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:24:28.256200 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:24:28.256208 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:24:28.256209 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:24:28.256209 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:24:28.256210 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:24:28.256210 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:24:28.256211 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:24:28.256211 7f784ea19a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:24:28.256212 7f784ea19a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:24:28.256212 7f784ea19a80 Options.arena_block_size: 16777216
+2021/03/14-01:24:28.256213 7f784ea19a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:24:28.256214 7f784ea19a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:24:28.256214 7f784ea19a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:24:28.256215 7f784ea19a80 Options.disable_auto_compactions: 0
+2021/03/14-01:24:28.256216 7f784ea19a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:24:28.256217 7f784ea19a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:24:28.256218 7f784ea19a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:24:28.256218 7f784ea19a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:24:28.256219 7f784ea19a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:24:28.256220 7f784ea19a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:24:28.256220 7f784ea19a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:24:28.256221 7f784ea19a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:24:28.256221 7f784ea19a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:24:28.256222 7f784ea19a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:24:28.256223 7f784ea19a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:24:28.256223 7f784ea19a80 Options.table_properties_collectors:
+2021/03/14-01:24:28.256224 7f784ea19a80 Options.inplace_update_support: 0
+2021/03/14-01:24:28.256224 7f784ea19a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:24:28.256225 7f784ea19a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:24:28.256226 7f784ea19a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:24:28.256226 7f784ea19a80 Options.bloom_locality: 0
+2021/03/14-01:24:28.256227 7f784ea19a80 Options.max_successive_merges: 0
+2021/03/14-01:24:28.256227 7f784ea19a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:24:28.256228 7f784ea19a80 Options.paranoid_file_checks: 0
+2021/03/14-01:24:28.256228 7f784ea19a80 Options.force_consistency_checks: 0
+2021/03/14-01:24:28.256229 7f784ea19a80 Options.report_bg_io_stats: 0
+2021/03/14-01:24:28.256667 7f784ea19a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:24:28.256669 7f784ea19a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:24:28.256794 7f784ea19a80 EVENT_LOG_v1 {"time_micros": 1615681468256783, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:24:28.256799 7f784ea19a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:24:28.915663 7f784ea19a80 EVENT_LOG_v1 {"time_micros": 1615681468915660, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681469596353 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681469596353
new file mode 100644
index 0000000..9c4f40e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681469596353
@@ -0,0 +1,186 @@
+2021/03/14-01:24:28.927798 7f784ea19a80 RocksDB version: 5.11.3
+2021/03/14-01:24:28.927849 7f784ea19a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:24:28.927851 7f784ea19a80 Compile date Mar 13 2021
+2021/03/14-01:24:28.927855 7f784ea19a80 DB SUMMARY
+2021/03/14-01:24:28.927970 7f784ea19a80 CURRENT file: CURRENT
+2021/03/14-01:24:28.927971 7f784ea19a80 IDENTITY file: IDENTITY
+2021/03/14-01:24:28.927982 7f784ea19a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:24:28.927983 7f784ea19a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:24:28.927984 7f784ea19a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:24:28.927991 7f784ea19a80 Options.error_if_exists: 0
+2021/03/14-01:24:28.927992 7f784ea19a80 Options.create_if_missing: 1
+2021/03/14-01:24:28.927992 7f784ea19a80 Options.paranoid_checks: 1
+2021/03/14-01:24:28.927993 7f784ea19a80 Options.env: 0x7f784f3d3080
+2021/03/14-01:24:28.927993 7f784ea19a80 Options.info_log: 0x2118ca0
+2021/03/14-01:24:28.927994 7f784ea19a80 Options.max_file_opening_threads: 16
+2021/03/14-01:24:28.927995 7f784ea19a80 Options.statistics: (nil)
+2021/03/14-01:24:28.927995 7f784ea19a80 Options.use_fsync: 0
+2021/03/14-01:24:28.927996 7f784ea19a80 Options.max_log_file_size: 0
+2021/03/14-01:24:28.927997 7f784ea19a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:24:28.927997 7f784ea19a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:24:28.927998 7f784ea19a80 Options.keep_log_file_num: 1000
+2021/03/14-01:24:28.927998 7f784ea19a80 Options.recycle_log_file_num: 0
+2021/03/14-01:24:28.927999 7f784ea19a80 Options.allow_fallocate: 1
+2021/03/14-01:24:28.927999 7f784ea19a80 Options.allow_mmap_reads: 0
+2021/03/14-01:24:28.928000 7f784ea19a80 Options.allow_mmap_writes: 0
+2021/03/14-01:24:28.928001 7f784ea19a80 Options.use_direct_reads: 0
+2021/03/14-01:24:28.928001 7f784ea19a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:24:28.928002 7f784ea19a80 Options.create_missing_column_families: 0
+2021/03/14-01:24:28.928002 7f784ea19a80 Options.db_log_dir:
+2021/03/14-01:24:28.928003 7f784ea19a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:24:28.928003 7f784ea19a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:24:28.928004 7f784ea19a80 Options.max_subcompactions: 1
+2021/03/14-01:24:28.928004 7f784ea19a80 Options.max_background_flushes: -1
+2021/03/14-01:24:28.928005 7f784ea19a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:24:28.928006 7f784ea19a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:24:28.928006 7f784ea19a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:24:28.928007 7f784ea19a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:24:28.928007 7f784ea19a80 Options.advise_random_on_open: 1
+2021/03/14-01:24:28.928008 7f784ea19a80 Options.db_write_buffer_size: 0
+2021/03/14-01:24:28.928008 7f784ea19a80 Options.write_buffer_manager: 0x2100b90
+2021/03/14-01:24:28.928009 7f784ea19a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:24:28.928010 7f784ea19a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:24:28.928010 7f784ea19a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:24:28.928011 7f784ea19a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:24:28.928011 7f784ea19a80 Options.rate_limiter: (nil)
+2021/03/14-01:24:28.928013 7f784ea19a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:24:28.928020 7f784ea19a80 Options.wal_recovery_mode: 2
+2021/03/14-01:24:28.928021 7f784ea19a80 Options.enable_thread_tracking: 0
+2021/03/14-01:24:28.928022 7f784ea19a80 Options.enable_pipelined_write: 0
+2021/03/14-01:24:28.928022 7f784ea19a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:24:28.928023 7f784ea19a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:24:28.928023 7f784ea19a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:24:28.928024 7f784ea19a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:24:28.928025 7f784ea19a80 Options.row_cache: None
+2021/03/14-01:24:28.928025 7f784ea19a80 Options.wal_filter: None
+2021/03/14-01:24:28.928026 7f784ea19a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:24:28.928026 7f784ea19a80 Options.allow_ingest_behind: 0
+2021/03/14-01:24:28.928027 7f784ea19a80 Options.preserve_deletes: 0
+2021/03/14-01:24:28.928027 7f784ea19a80 Options.two_write_queues: 0
+2021/03/14-01:24:28.928028 7f784ea19a80 Options.manual_wal_flush: 0
+2021/03/14-01:24:28.928029 7f784ea19a80 Options.max_background_jobs: 16
+2021/03/14-01:24:28.928030 7f784ea19a80 Options.max_background_compactions: -1
+2021/03/14-01:24:28.928030 7f784ea19a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:24:28.928031 7f784ea19a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:24:28.928031 7f784ea19a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:24:28.928032 7f784ea19a80 Options.max_total_wal_size: 0
+2021/03/14-01:24:28.928032 7f784ea19a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:24:28.928033 7f784ea19a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:24:28.928034 7f784ea19a80 Options.max_open_files: -1
+2021/03/14-01:24:28.928034 7f784ea19a80 Options.bytes_per_sync: 0
+2021/03/14-01:24:28.928035 7f784ea19a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:24:28.928035 7f784ea19a80 Options.compaction_readahead_size: 0
+2021/03/14-01:24:28.928036 7f784ea19a80 Compression algorithms supported:
+2021/03/14-01:24:28.928036 7f784ea19a80 Snappy supported: 1
+2021/03/14-01:24:28.928037 7f784ea19a80 Zlib supported: 1
+2021/03/14-01:24:28.928037 7f784ea19a80 Bzip supported: 1
+2021/03/14-01:24:28.928038 7f784ea19a80 LZ4 supported: 1
+2021/03/14-01:24:28.928039 7f784ea19a80 ZSTDNotFinal supported: 1
+2021/03/14-01:24:28.928043 7f784ea19a80 ZSTD supported: 1
+2021/03/14-01:24:28.928045 7f784ea19a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:24:28.928047 7f784ea19a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:24:28.928133 7f784ea19a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:24:28.928184 7f784ea19a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:24:28.928186 7f784ea19a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:24:28.928186 7f784ea19a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:24:28.928187 7f784ea19a80 Options.compaction_filter: None
+2021/03/14-01:24:28.928188 7f784ea19a80 Options.compaction_filter_factory: None
+2021/03/14-01:24:28.928188 7f784ea19a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:24:28.928189 7f784ea19a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:24:28.928203 7f784ea19a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2110520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20f5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:24:28.928203 7f784ea19a80 Options.write_buffer_size: 134217728
+2021/03/14-01:24:28.928204 7f784ea19a80 Options.max_write_buffer_number: 6
+2021/03/14-01:24:28.928205 7f784ea19a80 Options.compression[0]: NoCompression
+2021/03/14-01:24:28.928205 7f784ea19a80 Options.compression[1]: NoCompression
+2021/03/14-01:24:28.928206 7f784ea19a80 Options.compression[2]: Snappy
+2021/03/14-01:24:28.928207 7f784ea19a80 Options.compression[3]: Snappy
+2021/03/14-01:24:28.928207 7f784ea19a80 Options.compression[4]: Snappy
+2021/03/14-01:24:28.928208 7f784ea19a80 Options.compression[5]: Snappy
+2021/03/14-01:24:28.928208 7f784ea19a80 Options.compression[6]: Snappy
+2021/03/14-01:24:28.928209 7f784ea19a80 Options.bottommost_compression: Disabled
+2021/03/14-01:24:28.928210 7f784ea19a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:24:28.928210 7f784ea19a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:24:28.928211 7f784ea19a80 Options.num_levels: 7
+2021/03/14-01:24:28.928211 7f784ea19a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:24:28.928212 7f784ea19a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:24:28.928213 7f784ea19a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:24:28.928213 7f784ea19a80 Options.compression_opts.level: -1
+2021/03/14-01:24:28.928214 7f784ea19a80 Options.compression_opts.strategy: 0
+2021/03/14-01:24:28.928214 7f784ea19a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:24:28.928215 7f784ea19a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:24:28.928215 7f784ea19a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:24:28.928216 7f784ea19a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:24:28.928217 7f784ea19a80 Options.target_file_size_base: 67108864
+2021/03/14-01:24:28.928217 7f784ea19a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:24:28.928218 7f784ea19a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:24:28.928218 7f784ea19a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:24:28.928219 7f784ea19a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:24:28.928220 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:24:28.928228 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:24:28.928228 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:24:28.928229 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:24:28.928230 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:24:28.928230 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:24:28.928231 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:24:28.928231 7f784ea19a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:24:28.928232 7f784ea19a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:24:28.928232 7f784ea19a80 Options.arena_block_size: 16777216
+2021/03/14-01:24:28.928233 7f784ea19a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:24:28.928234 7f784ea19a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:24:28.928234 7f784ea19a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:24:28.928235 7f784ea19a80 Options.disable_auto_compactions: 0
+2021/03/14-01:24:28.928236 7f784ea19a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:24:28.928237 7f784ea19a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:24:28.928243 7f784ea19a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:24:28.928244 7f784ea19a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:24:28.928244 7f784ea19a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:24:28.928245 7f784ea19a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:24:28.928246 7f784ea19a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:24:28.928247 7f784ea19a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:24:28.928247 7f784ea19a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:24:28.928248 7f784ea19a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:24:28.928248 7f784ea19a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:24:28.928249 7f784ea19a80 Options.table_properties_collectors:
+2021/03/14-01:24:28.928249 7f784ea19a80 Options.inplace_update_support: 0
+2021/03/14-01:24:28.928250 7f784ea19a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:24:28.928251 7f784ea19a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:24:28.928251 7f784ea19a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:24:28.928252 7f784ea19a80 Options.bloom_locality: 0
+2021/03/14-01:24:28.928253 7f784ea19a80 Options.max_successive_merges: 0
+2021/03/14-01:24:28.928253 7f784ea19a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:24:28.928254 7f784ea19a80 Options.paranoid_file_checks: 0
+2021/03/14-01:24:28.928254 7f784ea19a80 Options.force_consistency_checks: 0
+2021/03/14-01:24:28.928255 7f784ea19a80 Options.report_bg_io_stats: 0
+2021/03/14-01:24:28.928649 7f784ea19a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:24:28.928652 7f784ea19a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:24:28.928779 7f784ea19a80 EVENT_LOG_v1 {"time_micros": 1615681468928768, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:24:28.928784 7f784ea19a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:24:29.584314 7f784ea19a80 EVENT_LOG_v1 {"time_micros": 1615681469584310, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681687585794 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681687585794
new file mode 100644
index 0000000..1586947
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681687585794
@@ -0,0 +1,186 @@
+2021/03/14-01:24:29.596717 7f784ea19a80 RocksDB version: 5.11.3
+2021/03/14-01:24:29.596770 7f784ea19a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:24:29.596772 7f784ea19a80 Compile date Mar 13 2021
+2021/03/14-01:24:29.596776 7f784ea19a80 DB SUMMARY
+2021/03/14-01:24:29.596889 7f784ea19a80 CURRENT file: CURRENT
+2021/03/14-01:24:29.596890 7f784ea19a80 IDENTITY file: IDENTITY
+2021/03/14-01:24:29.596901 7f784ea19a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:24:29.596902 7f784ea19a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:24:29.596903 7f784ea19a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:24:29.596910 7f784ea19a80 Options.error_if_exists: 0
+2021/03/14-01:24:29.596910 7f784ea19a80 Options.create_if_missing: 1
+2021/03/14-01:24:29.596911 7f784ea19a80 Options.paranoid_checks: 1
+2021/03/14-01:24:29.596912 7f784ea19a80 Options.env: 0x7f784f3d3080
+2021/03/14-01:24:29.596912 7f784ea19a80 Options.info_log: 0x2118ca0
+2021/03/14-01:24:29.596913 7f784ea19a80 Options.max_file_opening_threads: 16
+2021/03/14-01:24:29.596913 7f784ea19a80 Options.statistics: (nil)
+2021/03/14-01:24:29.596914 7f784ea19a80 Options.use_fsync: 0
+2021/03/14-01:24:29.596915 7f784ea19a80 Options.max_log_file_size: 0
+2021/03/14-01:24:29.596915 7f784ea19a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:24:29.596916 7f784ea19a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:24:29.596917 7f784ea19a80 Options.keep_log_file_num: 1000
+2021/03/14-01:24:29.596917 7f784ea19a80 Options.recycle_log_file_num: 0
+2021/03/14-01:24:29.596918 7f784ea19a80 Options.allow_fallocate: 1
+2021/03/14-01:24:29.596918 7f784ea19a80 Options.allow_mmap_reads: 0
+2021/03/14-01:24:29.596919 7f784ea19a80 Options.allow_mmap_writes: 0
+2021/03/14-01:24:29.596919 7f784ea19a80 Options.use_direct_reads: 0
+2021/03/14-01:24:29.596920 7f784ea19a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:24:29.596920 7f784ea19a80 Options.create_missing_column_families: 0
+2021/03/14-01:24:29.596921 7f784ea19a80 Options.db_log_dir:
+2021/03/14-01:24:29.596922 7f784ea19a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:24:29.596922 7f784ea19a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:24:29.596923 7f784ea19a80 Options.max_subcompactions: 1
+2021/03/14-01:24:29.596923 7f784ea19a80 Options.max_background_flushes: -1
+2021/03/14-01:24:29.596924 7f784ea19a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:24:29.596924 7f784ea19a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:24:29.596925 7f784ea19a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:24:29.596926 7f784ea19a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:24:29.596926 7f784ea19a80 Options.advise_random_on_open: 1
+2021/03/14-01:24:29.596927 7f784ea19a80 Options.db_write_buffer_size: 0
+2021/03/14-01:24:29.596927 7f784ea19a80 Options.write_buffer_manager: 0x2100b90
+2021/03/14-01:24:29.596928 7f784ea19a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:24:29.596928 7f784ea19a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:24:29.596929 7f784ea19a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:24:29.596929 7f784ea19a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:24:29.596930 7f784ea19a80 Options.rate_limiter: (nil)
+2021/03/14-01:24:29.596931 7f784ea19a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:24:29.596939 7f784ea19a80 Options.wal_recovery_mode: 2
+2021/03/14-01:24:29.596940 7f784ea19a80 Options.enable_thread_tracking: 0
+2021/03/14-01:24:29.596940 7f784ea19a80 Options.enable_pipelined_write: 0
+2021/03/14-01:24:29.596941 7f784ea19a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:24:29.596941 7f784ea19a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:24:29.596942 7f784ea19a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:24:29.596942 7f784ea19a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:24:29.596943 7f784ea19a80 Options.row_cache: None
+2021/03/14-01:24:29.596944 7f784ea19a80 Options.wal_filter: None
+2021/03/14-01:24:29.596944 7f784ea19a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:24:29.596945 7f784ea19a80 Options.allow_ingest_behind: 0
+2021/03/14-01:24:29.596945 7f784ea19a80 Options.preserve_deletes: 0
+2021/03/14-01:24:29.596946 7f784ea19a80 Options.two_write_queues: 0
+2021/03/14-01:24:29.596946 7f784ea19a80 Options.manual_wal_flush: 0
+2021/03/14-01:24:29.596947 7f784ea19a80 Options.max_background_jobs: 16
+2021/03/14-01:24:29.596948 7f784ea19a80 Options.max_background_compactions: -1
+2021/03/14-01:24:29.596949 7f784ea19a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:24:29.596949 7f784ea19a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:24:29.596950 7f784ea19a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:24:29.596950 7f784ea19a80 Options.max_total_wal_size: 0
+2021/03/14-01:24:29.596951 7f784ea19a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:24:29.596951 7f784ea19a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:24:29.596952 7f784ea19a80 Options.max_open_files: -1
+2021/03/14-01:24:29.596953 7f784ea19a80 Options.bytes_per_sync: 0
+2021/03/14-01:24:29.596953 7f784ea19a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:24:29.596954 7f784ea19a80 Options.compaction_readahead_size: 0
+2021/03/14-01:24:29.596954 7f784ea19a80 Compression algorithms supported:
+2021/03/14-01:24:29.596955 7f784ea19a80 Snappy supported: 1
+2021/03/14-01:24:29.596955 7f784ea19a80 Zlib supported: 1
+2021/03/14-01:24:29.596956 7f784ea19a80 Bzip supported: 1
+2021/03/14-01:24:29.596957 7f784ea19a80 LZ4 supported: 1
+2021/03/14-01:24:29.596957 7f784ea19a80 ZSTDNotFinal supported: 1
+2021/03/14-01:24:29.596961 7f784ea19a80 ZSTD supported: 1
+2021/03/14-01:24:29.596964 7f784ea19a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:24:29.596965 7f784ea19a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:24:29.597052 7f784ea19a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:24:29.597103 7f784ea19a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:24:29.597105 7f784ea19a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:24:29.597105 7f784ea19a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:24:29.597106 7f784ea19a80 Options.compaction_filter: None
+2021/03/14-01:24:29.597107 7f784ea19a80 Options.compaction_filter_factory: None
+2021/03/14-01:24:29.597107 7f784ea19a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:24:29.597108 7f784ea19a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:24:29.597122 7f784ea19a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2110520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x20f5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:24:29.597123 7f784ea19a80 Options.write_buffer_size: 134217728
+2021/03/14-01:24:29.597123 7f784ea19a80 Options.max_write_buffer_number: 6
+2021/03/14-01:24:29.597124 7f784ea19a80 Options.compression[0]: NoCompression
+2021/03/14-01:24:29.597125 7f784ea19a80 Options.compression[1]: NoCompression
+2021/03/14-01:24:29.597125 7f784ea19a80 Options.compression[2]: Snappy
+2021/03/14-01:24:29.597126 7f784ea19a80 Options.compression[3]: Snappy
+2021/03/14-01:24:29.597126 7f784ea19a80 Options.compression[4]: Snappy
+2021/03/14-01:24:29.597127 7f784ea19a80 Options.compression[5]: Snappy
+2021/03/14-01:24:29.597128 7f784ea19a80 Options.compression[6]: Snappy
+2021/03/14-01:24:29.597128 7f784ea19a80 Options.bottommost_compression: Disabled
+2021/03/14-01:24:29.597129 7f784ea19a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:24:29.597129 7f784ea19a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:24:29.597130 7f784ea19a80 Options.num_levels: 7
+2021/03/14-01:24:29.597131 7f784ea19a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:24:29.597131 7f784ea19a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:24:29.597132 7f784ea19a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:24:29.597132 7f784ea19a80 Options.compression_opts.level: -1
+2021/03/14-01:24:29.597133 7f784ea19a80 Options.compression_opts.strategy: 0
+2021/03/14-01:24:29.597133 7f784ea19a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:24:29.597134 7f784ea19a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:24:29.597135 7f784ea19a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:24:29.597135 7f784ea19a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:24:29.597136 7f784ea19a80 Options.target_file_size_base: 67108864
+2021/03/14-01:24:29.597136 7f784ea19a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:24:29.597137 7f784ea19a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:24:29.597138 7f784ea19a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:24:29.597138 7f784ea19a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:24:29.597140 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:24:29.597147 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:24:29.597148 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:24:29.597148 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:24:29.597149 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:24:29.597150 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:24:29.597150 7f784ea19a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:24:29.597151 7f784ea19a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:24:29.597151 7f784ea19a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:24:29.597152 7f784ea19a80 Options.arena_block_size: 16777216
+2021/03/14-01:24:29.597152 7f784ea19a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:24:29.597153 7f784ea19a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:24:29.597154 7f784ea19a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:24:29.597154 7f784ea19a80 Options.disable_auto_compactions: 0
+2021/03/14-01:24:29.597156 7f784ea19a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:24:29.597156 7f784ea19a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:24:29.597157 7f784ea19a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:24:29.597158 7f784ea19a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:24:29.597158 7f784ea19a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:24:29.597159 7f784ea19a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:24:29.597159 7f784ea19a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:24:29.597160 7f784ea19a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:24:29.597161 7f784ea19a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:24:29.597161 7f784ea19a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:24:29.597162 7f784ea19a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:24:29.597162 7f784ea19a80 Options.table_properties_collectors:
+2021/03/14-01:24:29.597163 7f784ea19a80 Options.inplace_update_support: 0
+2021/03/14-01:24:29.597164 7f784ea19a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:24:29.597164 7f784ea19a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:24:29.597165 7f784ea19a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:24:29.597166 7f784ea19a80 Options.bloom_locality: 0
+2021/03/14-01:24:29.597166 7f784ea19a80 Options.max_successive_merges: 0
+2021/03/14-01:24:29.597167 7f784ea19a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:24:29.597167 7f784ea19a80 Options.paranoid_file_checks: 0
+2021/03/14-01:24:29.597168 7f784ea19a80 Options.force_consistency_checks: 0
+2021/03/14-01:24:29.597168 7f784ea19a80 Options.report_bg_io_stats: 0
+2021/03/14-01:24:29.597565 7f784ea19a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:24:29.597568 7f784ea19a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:24:29.597690 7f784ea19a80 EVENT_LOG_v1 {"time_micros": 1615681469597680, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:24:29.597695 7f784ea19a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:24:30.260106 7f784ea19a80 EVENT_LOG_v1 {"time_micros": 1615681470260102, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681688270020 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681688270020
new file mode 100644
index 0000000..a6c2cb6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681688270020
@@ -0,0 +1,186 @@
+2021/03/14-01:28:07.586288 7f874129ca80 RocksDB version: 5.11.3
+2021/03/14-01:28:07.586359 7f874129ca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:07.586361 7f874129ca80 Compile date Mar 13 2021
+2021/03/14-01:28:07.586364 7f874129ca80 DB SUMMARY
+2021/03/14-01:28:07.586506 7f874129ca80 CURRENT file: CURRENT
+2021/03/14-01:28:07.586507 7f874129ca80 IDENTITY file: IDENTITY
+2021/03/14-01:28:07.586520 7f874129ca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:07.586522 7f874129ca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:07.586523 7f874129ca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:07.586531 7f874129ca80 Options.error_if_exists: 0
+2021/03/14-01:28:07.586532 7f874129ca80 Options.create_if_missing: 1
+2021/03/14-01:28:07.586532 7f874129ca80 Options.paranoid_checks: 1
+2021/03/14-01:28:07.586533 7f874129ca80 Options.env: 0x7f8741c56080
+2021/03/14-01:28:07.586534 7f874129ca80 Options.info_log: 0x2bf6ca0
+2021/03/14-01:28:07.586535 7f874129ca80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:07.586535 7f874129ca80 Options.statistics: (nil)
+2021/03/14-01:28:07.586536 7f874129ca80 Options.use_fsync: 0
+2021/03/14-01:28:07.586537 7f874129ca80 Options.max_log_file_size: 0
+2021/03/14-01:28:07.586537 7f874129ca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:07.586538 7f874129ca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:07.586539 7f874129ca80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:07.586540 7f874129ca80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:07.586540 7f874129ca80 Options.allow_fallocate: 1
+2021/03/14-01:28:07.586541 7f874129ca80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:07.586542 7f874129ca80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:07.586542 7f874129ca80 Options.use_direct_reads: 0
+2021/03/14-01:28:07.586543 7f874129ca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:07.586544 7f874129ca80 Options.create_missing_column_families: 0
+2021/03/14-01:28:07.586544 7f874129ca80 Options.db_log_dir:
+2021/03/14-01:28:07.586545 7f874129ca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:07.586546 7f874129ca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:07.586546 7f874129ca80 Options.max_subcompactions: 1
+2021/03/14-01:28:07.586547 7f874129ca80 Options.max_background_flushes: -1
+2021/03/14-01:28:07.586548 7f874129ca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:07.586548 7f874129ca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:07.586549 7f874129ca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:07.586550 7f874129ca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:07.586550 7f874129ca80 Options.advise_random_on_open: 1
+2021/03/14-01:28:07.586551 7f874129ca80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:07.586552 7f874129ca80 Options.write_buffer_manager: 0x2bdeb90
+2021/03/14-01:28:07.586553 7f874129ca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:07.586553 7f874129ca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:07.586554 7f874129ca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:07.586555 7f874129ca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:07.586555 7f874129ca80 Options.rate_limiter: (nil)
+2021/03/14-01:28:07.586557 7f874129ca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:07.586566 7f874129ca80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:07.586567 7f874129ca80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:07.586568 7f874129ca80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:07.586568 7f874129ca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:07.586569 7f874129ca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:07.586570 7f874129ca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:07.586570 7f874129ca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:07.586571 7f874129ca80 Options.row_cache: None
+2021/03/14-01:28:07.586572 7f874129ca80 Options.wal_filter: None
+2021/03/14-01:28:07.586572 7f874129ca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:07.586573 7f874129ca80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:07.586574 7f874129ca80 Options.preserve_deletes: 0
+2021/03/14-01:28:07.586574 7f874129ca80 Options.two_write_queues: 0
+2021/03/14-01:28:07.586575 7f874129ca80 Options.manual_wal_flush: 0
+2021/03/14-01:28:07.586576 7f874129ca80 Options.max_background_jobs: 16
+2021/03/14-01:28:07.586577 7f874129ca80 Options.max_background_compactions: -1
+2021/03/14-01:28:07.586578 7f874129ca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:07.586578 7f874129ca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:07.586579 7f874129ca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:07.586580 7f874129ca80 Options.max_total_wal_size: 0
+2021/03/14-01:28:07.586581 7f874129ca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:07.586581 7f874129ca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:07.586582 7f874129ca80 Options.max_open_files: -1
+2021/03/14-01:28:07.586583 7f874129ca80 Options.bytes_per_sync: 0
+2021/03/14-01:28:07.586583 7f874129ca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:07.586584 7f874129ca80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:07.586585 7f874129ca80 Compression algorithms supported:
+2021/03/14-01:28:07.586585 7f874129ca80 Snappy supported: 1
+2021/03/14-01:28:07.586586 7f874129ca80 Zlib supported: 1
+2021/03/14-01:28:07.586587 7f874129ca80 Bzip supported: 1
+2021/03/14-01:28:07.586588 7f874129ca80 LZ4 supported: 1
+2021/03/14-01:28:07.586588 7f874129ca80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:07.586594 7f874129ca80 ZSTD supported: 1
+2021/03/14-01:28:07.586598 7f874129ca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:07.586600 7f874129ca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:07.586724 7f874129ca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:07.586796 7f874129ca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:07.586798 7f874129ca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:07.586800 7f874129ca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:07.586800 7f874129ca80 Options.compaction_filter: None
+2021/03/14-01:28:07.586801 7f874129ca80 Options.compaction_filter_factory: None
+2021/03/14-01:28:07.586802 7f874129ca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:07.586803 7f874129ca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:07.586820 7f874129ca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2bee520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2bd3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:07.586821 7f874129ca80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:07.586821 7f874129ca80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:07.586822 7f874129ca80 Options.compression[0]: NoCompression
+2021/03/14-01:28:07.586823 7f874129ca80 Options.compression[1]: NoCompression
+2021/03/14-01:28:07.586824 7f874129ca80 Options.compression[2]: Snappy
+2021/03/14-01:28:07.586824 7f874129ca80 Options.compression[3]: Snappy
+2021/03/14-01:28:07.586825 7f874129ca80 Options.compression[4]: Snappy
+2021/03/14-01:28:07.586826 7f874129ca80 Options.compression[5]: Snappy
+2021/03/14-01:28:07.586826 7f874129ca80 Options.compression[6]: Snappy
+2021/03/14-01:28:07.586827 7f874129ca80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:07.586828 7f874129ca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:07.586829 7f874129ca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:07.586829 7f874129ca80 Options.num_levels: 7
+2021/03/14-01:28:07.586830 7f874129ca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:07.586831 7f874129ca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:07.586831 7f874129ca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:07.586832 7f874129ca80 Options.compression_opts.level: -1
+2021/03/14-01:28:07.586833 7f874129ca80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:07.586833 7f874129ca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:07.586834 7f874129ca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:07.586835 7f874129ca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:07.586836 7f874129ca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:07.586836 7f874129ca80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:07.586837 7f874129ca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:07.586838 7f874129ca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:07.586838 7f874129ca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:07.586839 7f874129ca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:07.586841 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:07.586858 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:07.586859 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:07.586859 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:07.586860 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:07.586861 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:07.586861 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:07.586862 7f874129ca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:07.586863 7f874129ca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:07.586863 7f874129ca80 Options.arena_block_size: 16777216
+2021/03/14-01:28:07.586864 7f874129ca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:07.586865 7f874129ca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:07.586866 7f874129ca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:07.586866 7f874129ca80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:07.586868 7f874129ca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:07.586869 7f874129ca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:07.586870 7f874129ca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:07.586870 7f874129ca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:07.586871 7f874129ca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:07.586872 7f874129ca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:07.586872 7f874129ca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:07.586874 7f874129ca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:07.586875 7f874129ca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:07.586875 7f874129ca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:07.586876 7f874129ca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:07.586877 7f874129ca80 Options.table_properties_collectors:
+2021/03/14-01:28:07.586877 7f874129ca80 Options.inplace_update_support: 0
+2021/03/14-01:28:07.586878 7f874129ca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:07.586879 7f874129ca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:07.586880 7f874129ca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:07.586880 7f874129ca80 Options.bloom_locality: 0
+2021/03/14-01:28:07.586881 7f874129ca80 Options.max_successive_merges: 0
+2021/03/14-01:28:07.586882 7f874129ca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:07.586882 7f874129ca80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:07.586883 7f874129ca80 Options.force_consistency_checks: 0
+2021/03/14-01:28:07.586884 7f874129ca80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:07.587383 7f874129ca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:07.587386 7f874129ca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:07.587542 7f874129ca80 EVENT_LOG_v1 {"time_micros": 1615681687587527, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:07.587549 7f874129ca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:08.258092 7f874129ca80 EVENT_LOG_v1 {"time_micros": 1615681688258088, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681688954280 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681688954280
new file mode 100644
index 0000000..caf6ffe
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681688954280
@@ -0,0 +1,186 @@
+2021/03/14-01:28:08.270406 7f874129ca80 RocksDB version: 5.11.3
+2021/03/14-01:28:08.270459 7f874129ca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:08.270460 7f874129ca80 Compile date Mar 13 2021
+2021/03/14-01:28:08.270463 7f874129ca80 DB SUMMARY
+2021/03/14-01:28:08.270580 7f874129ca80 CURRENT file: CURRENT
+2021/03/14-01:28:08.270581 7f874129ca80 IDENTITY file: IDENTITY
+2021/03/14-01:28:08.270592 7f874129ca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:08.270593 7f874129ca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:08.270594 7f874129ca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:08.270601 7f874129ca80 Options.error_if_exists: 0
+2021/03/14-01:28:08.270601 7f874129ca80 Options.create_if_missing: 1
+2021/03/14-01:28:08.270602 7f874129ca80 Options.paranoid_checks: 1
+2021/03/14-01:28:08.270603 7f874129ca80 Options.env: 0x7f8741c56080
+2021/03/14-01:28:08.270603 7f874129ca80 Options.info_log: 0x2bf6ca0
+2021/03/14-01:28:08.270604 7f874129ca80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:08.270604 7f874129ca80 Options.statistics: (nil)
+2021/03/14-01:28:08.270605 7f874129ca80 Options.use_fsync: 0
+2021/03/14-01:28:08.270606 7f874129ca80 Options.max_log_file_size: 0
+2021/03/14-01:28:08.270606 7f874129ca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:08.270607 7f874129ca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:08.270607 7f874129ca80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:08.270608 7f874129ca80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:08.270609 7f874129ca80 Options.allow_fallocate: 1
+2021/03/14-01:28:08.270609 7f874129ca80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:08.270610 7f874129ca80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:08.270610 7f874129ca80 Options.use_direct_reads: 0
+2021/03/14-01:28:08.270611 7f874129ca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:08.270612 7f874129ca80 Options.create_missing_column_families: 0
+2021/03/14-01:28:08.270612 7f874129ca80 Options.db_log_dir:
+2021/03/14-01:28:08.270613 7f874129ca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:08.270613 7f874129ca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:08.270614 7f874129ca80 Options.max_subcompactions: 1
+2021/03/14-01:28:08.270614 7f874129ca80 Options.max_background_flushes: -1
+2021/03/14-01:28:08.270615 7f874129ca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:08.270616 7f874129ca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:08.270616 7f874129ca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:08.270617 7f874129ca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:08.270617 7f874129ca80 Options.advise_random_on_open: 1
+2021/03/14-01:28:08.270618 7f874129ca80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:08.270619 7f874129ca80 Options.write_buffer_manager: 0x2bdeb90
+2021/03/14-01:28:08.270619 7f874129ca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:08.270620 7f874129ca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:08.270620 7f874129ca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:08.270621 7f874129ca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:08.270621 7f874129ca80 Options.rate_limiter: (nil)
+2021/03/14-01:28:08.270623 7f874129ca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:08.270630 7f874129ca80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:08.270631 7f874129ca80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:08.270632 7f874129ca80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:08.270632 7f874129ca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:08.270633 7f874129ca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:08.270633 7f874129ca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:08.270634 7f874129ca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:08.270634 7f874129ca80 Options.row_cache: None
+2021/03/14-01:28:08.270635 7f874129ca80 Options.wal_filter: None
+2021/03/14-01:28:08.270636 7f874129ca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:08.270636 7f874129ca80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:08.270637 7f874129ca80 Options.preserve_deletes: 0
+2021/03/14-01:28:08.270637 7f874129ca80 Options.two_write_queues: 0
+2021/03/14-01:28:08.270638 7f874129ca80 Options.manual_wal_flush: 0
+2021/03/14-01:28:08.270639 7f874129ca80 Options.max_background_jobs: 16
+2021/03/14-01:28:08.270640 7f874129ca80 Options.max_background_compactions: -1
+2021/03/14-01:28:08.270640 7f874129ca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:08.270641 7f874129ca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:08.270641 7f874129ca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:08.270642 7f874129ca80 Options.max_total_wal_size: 0
+2021/03/14-01:28:08.270642 7f874129ca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:08.270643 7f874129ca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:08.270644 7f874129ca80 Options.max_open_files: -1
+2021/03/14-01:28:08.270644 7f874129ca80 Options.bytes_per_sync: 0
+2021/03/14-01:28:08.270645 7f874129ca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:08.270645 7f874129ca80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:08.270646 7f874129ca80 Compression algorithms supported:
+2021/03/14-01:28:08.270647 7f874129ca80 Snappy supported: 1
+2021/03/14-01:28:08.270647 7f874129ca80 Zlib supported: 1
+2021/03/14-01:28:08.270648 7f874129ca80 Bzip supported: 1
+2021/03/14-01:28:08.270648 7f874129ca80 LZ4 supported: 1
+2021/03/14-01:28:08.270649 7f874129ca80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:08.270653 7f874129ca80 ZSTD supported: 1
+2021/03/14-01:28:08.270656 7f874129ca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:08.270657 7f874129ca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:08.270753 7f874129ca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:08.270821 7f874129ca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:08.270823 7f874129ca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:08.270824 7f874129ca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:08.270825 7f874129ca80 Options.compaction_filter: None
+2021/03/14-01:28:08.270825 7f874129ca80 Options.compaction_filter_factory: None
+2021/03/14-01:28:08.270826 7f874129ca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:08.270827 7f874129ca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:08.270841 7f874129ca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2bee520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2bd3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:08.270842 7f874129ca80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:08.270842 7f874129ca80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:08.270843 7f874129ca80 Options.compression[0]: NoCompression
+2021/03/14-01:28:08.270844 7f874129ca80 Options.compression[1]: NoCompression
+2021/03/14-01:28:08.270844 7f874129ca80 Options.compression[2]: Snappy
+2021/03/14-01:28:08.270845 7f874129ca80 Options.compression[3]: Snappy
+2021/03/14-01:28:08.270845 7f874129ca80 Options.compression[4]: Snappy
+2021/03/14-01:28:08.270846 7f874129ca80 Options.compression[5]: Snappy
+2021/03/14-01:28:08.270847 7f874129ca80 Options.compression[6]: Snappy
+2021/03/14-01:28:08.270847 7f874129ca80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:08.270848 7f874129ca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:08.270849 7f874129ca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:08.270849 7f874129ca80 Options.num_levels: 7
+2021/03/14-01:28:08.270850 7f874129ca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:08.270850 7f874129ca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:08.270851 7f874129ca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:08.270852 7f874129ca80 Options.compression_opts.level: -1
+2021/03/14-01:28:08.270852 7f874129ca80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:08.270853 7f874129ca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:08.270853 7f874129ca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:08.270854 7f874129ca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:08.270854 7f874129ca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:08.270855 7f874129ca80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:08.270856 7f874129ca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:08.270856 7f874129ca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:08.270857 7f874129ca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:08.270857 7f874129ca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:08.270859 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:08.270867 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:08.270868 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:08.270868 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:08.270869 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:08.270869 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:08.270870 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:08.270871 7f874129ca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:08.270871 7f874129ca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:08.270872 7f874129ca80 Options.arena_block_size: 16777216
+2021/03/14-01:28:08.270873 7f874129ca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:08.270873 7f874129ca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:08.270874 7f874129ca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:08.270874 7f874129ca80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:08.270876 7f874129ca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:08.270877 7f874129ca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:08.270877 7f874129ca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:08.270878 7f874129ca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:08.270879 7f874129ca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:08.270879 7f874129ca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:08.270880 7f874129ca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:08.270881 7f874129ca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:08.270881 7f874129ca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:08.270882 7f874129ca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:08.270882 7f874129ca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:08.270883 7f874129ca80 Options.table_properties_collectors:
+2021/03/14-01:28:08.270884 7f874129ca80 Options.inplace_update_support: 0
+2021/03/14-01:28:08.270884 7f874129ca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:08.270885 7f874129ca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:08.270886 7f874129ca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:08.270886 7f874129ca80 Options.bloom_locality: 0
+2021/03/14-01:28:08.270887 7f874129ca80 Options.max_successive_merges: 0
+2021/03/14-01:28:08.270887 7f874129ca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:08.270888 7f874129ca80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:08.270888 7f874129ca80 Options.force_consistency_checks: 0
+2021/03/14-01:28:08.270889 7f874129ca80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:08.271279 7f874129ca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:08.271282 7f874129ca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:08.271405 7f874129ca80 EVENT_LOG_v1 {"time_micros": 1615681688271395, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:08.271411 7f874129ca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:08.941829 7f874129ca80 EVENT_LOG_v1 {"time_micros": 1615681688941826, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681689629582 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681689629582
new file mode 100644
index 0000000..eaf21bf
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681689629582
@@ -0,0 +1,186 @@
+2021/03/14-01:28:08.954652 7f874129ca80 RocksDB version: 5.11.3
+2021/03/14-01:28:08.954705 7f874129ca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:08.954706 7f874129ca80 Compile date Mar 13 2021
+2021/03/14-01:28:08.954708 7f874129ca80 DB SUMMARY
+2021/03/14-01:28:08.954825 7f874129ca80 CURRENT file: CURRENT
+2021/03/14-01:28:08.954826 7f874129ca80 IDENTITY file: IDENTITY
+2021/03/14-01:28:08.954837 7f874129ca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:08.954838 7f874129ca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:08.954839 7f874129ca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:08.954845 7f874129ca80 Options.error_if_exists: 0
+2021/03/14-01:28:08.954846 7f874129ca80 Options.create_if_missing: 1
+2021/03/14-01:28:08.954847 7f874129ca80 Options.paranoid_checks: 1
+2021/03/14-01:28:08.954848 7f874129ca80 Options.env: 0x7f8741c56080
+2021/03/14-01:28:08.954848 7f874129ca80 Options.info_log: 0x2bf6ca0
+2021/03/14-01:28:08.954849 7f874129ca80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:08.954849 7f874129ca80 Options.statistics: (nil)
+2021/03/14-01:28:08.954850 7f874129ca80 Options.use_fsync: 0
+2021/03/14-01:28:08.954851 7f874129ca80 Options.max_log_file_size: 0
+2021/03/14-01:28:08.954851 7f874129ca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:08.954852 7f874129ca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:08.954853 7f874129ca80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:08.954853 7f874129ca80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:08.954854 7f874129ca80 Options.allow_fallocate: 1
+2021/03/14-01:28:08.954854 7f874129ca80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:08.954855 7f874129ca80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:08.954855 7f874129ca80 Options.use_direct_reads: 0
+2021/03/14-01:28:08.954856 7f874129ca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:08.954857 7f874129ca80 Options.create_missing_column_families: 0
+2021/03/14-01:28:08.954857 7f874129ca80 Options.db_log_dir:
+2021/03/14-01:28:08.954858 7f874129ca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:08.954858 7f874129ca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:08.954859 7f874129ca80 Options.max_subcompactions: 1
+2021/03/14-01:28:08.954860 7f874129ca80 Options.max_background_flushes: -1
+2021/03/14-01:28:08.954860 7f874129ca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:08.954861 7f874129ca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:08.954861 7f874129ca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:08.954862 7f874129ca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:08.954862 7f874129ca80 Options.advise_random_on_open: 1
+2021/03/14-01:28:08.954863 7f874129ca80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:08.954864 7f874129ca80 Options.write_buffer_manager: 0x2bdeb90
+2021/03/14-01:28:08.954864 7f874129ca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:08.954865 7f874129ca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:08.954865 7f874129ca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:08.954866 7f874129ca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:08.954867 7f874129ca80 Options.rate_limiter: (nil)
+2021/03/14-01:28:08.954868 7f874129ca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:08.954876 7f874129ca80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:08.954876 7f874129ca80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:08.954877 7f874129ca80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:08.954878 7f874129ca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:08.954878 7f874129ca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:08.954879 7f874129ca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:08.954879 7f874129ca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:08.954880 7f874129ca80 Options.row_cache: None
+2021/03/14-01:28:08.954880 7f874129ca80 Options.wal_filter: None
+2021/03/14-01:28:08.954881 7f874129ca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:08.954882 7f874129ca80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:08.954882 7f874129ca80 Options.preserve_deletes: 0
+2021/03/14-01:28:08.954883 7f874129ca80 Options.two_write_queues: 0
+2021/03/14-01:28:08.954883 7f874129ca80 Options.manual_wal_flush: 0
+2021/03/14-01:28:08.954885 7f874129ca80 Options.max_background_jobs: 16
+2021/03/14-01:28:08.954885 7f874129ca80 Options.max_background_compactions: -1
+2021/03/14-01:28:08.954886 7f874129ca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:08.954886 7f874129ca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:08.954887 7f874129ca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:08.954887 7f874129ca80 Options.max_total_wal_size: 0
+2021/03/14-01:28:08.954888 7f874129ca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:08.954889 7f874129ca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:08.954889 7f874129ca80 Options.max_open_files: -1
+2021/03/14-01:28:08.954890 7f874129ca80 Options.bytes_per_sync: 0
+2021/03/14-01:28:08.954890 7f874129ca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:08.954891 7f874129ca80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:08.954891 7f874129ca80 Compression algorithms supported:
+2021/03/14-01:28:08.954892 7f874129ca80 Snappy supported: 1
+2021/03/14-01:28:08.954893 7f874129ca80 Zlib supported: 1
+2021/03/14-01:28:08.954893 7f874129ca80 Bzip supported: 1
+2021/03/14-01:28:08.954894 7f874129ca80 LZ4 supported: 1
+2021/03/14-01:28:08.954894 7f874129ca80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:08.954898 7f874129ca80 ZSTD supported: 1
+2021/03/14-01:28:08.954902 7f874129ca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:08.954903 7f874129ca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:08.954993 7f874129ca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:08.955047 7f874129ca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:08.955049 7f874129ca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:08.955049 7f874129ca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:08.955050 7f874129ca80 Options.compaction_filter: None
+2021/03/14-01:28:08.955051 7f874129ca80 Options.compaction_filter_factory: None
+2021/03/14-01:28:08.955051 7f874129ca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:08.955052 7f874129ca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:08.955066 7f874129ca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2bee520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2bd3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:08.955067 7f874129ca80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:08.955067 7f874129ca80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:08.955068 7f874129ca80 Options.compression[0]: NoCompression
+2021/03/14-01:28:08.955069 7f874129ca80 Options.compression[1]: NoCompression
+2021/03/14-01:28:08.955070 7f874129ca80 Options.compression[2]: Snappy
+2021/03/14-01:28:08.955070 7f874129ca80 Options.compression[3]: Snappy
+2021/03/14-01:28:08.955071 7f874129ca80 Options.compression[4]: Snappy
+2021/03/14-01:28:08.955071 7f874129ca80 Options.compression[5]: Snappy
+2021/03/14-01:28:08.955072 7f874129ca80 Options.compression[6]: Snappy
+2021/03/14-01:28:08.955073 7f874129ca80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:08.955073 7f874129ca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:08.955074 7f874129ca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:08.955075 7f874129ca80 Options.num_levels: 7
+2021/03/14-01:28:08.955075 7f874129ca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:08.955076 7f874129ca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:08.955076 7f874129ca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:08.955077 7f874129ca80 Options.compression_opts.level: -1
+2021/03/14-01:28:08.955078 7f874129ca80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:08.955078 7f874129ca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:08.955079 7f874129ca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:08.955080 7f874129ca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:08.955080 7f874129ca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:08.955081 7f874129ca80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:08.955081 7f874129ca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:08.955082 7f874129ca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:08.955083 7f874129ca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:08.955083 7f874129ca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:08.955085 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:08.955093 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:08.955093 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:08.955094 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:08.955095 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:08.955095 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:08.955096 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:08.955096 7f874129ca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:08.955097 7f874129ca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:08.955097 7f874129ca80 Options.arena_block_size: 16777216
+2021/03/14-01:28:08.955098 7f874129ca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:08.955099 7f874129ca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:08.955099 7f874129ca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:08.955100 7f874129ca80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:08.955102 7f874129ca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:08.955103 7f874129ca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:08.955103 7f874129ca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:08.955104 7f874129ca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:08.955104 7f874129ca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:08.955105 7f874129ca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:08.955106 7f874129ca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:08.955107 7f874129ca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:08.955107 7f874129ca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:08.955108 7f874129ca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:08.955108 7f874129ca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:08.955109 7f874129ca80 Options.table_properties_collectors:
+2021/03/14-01:28:08.955110 7f874129ca80 Options.inplace_update_support: 0
+2021/03/14-01:28:08.955110 7f874129ca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:08.955111 7f874129ca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:08.955112 7f874129ca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:08.955112 7f874129ca80 Options.bloom_locality: 0
+2021/03/14-01:28:08.955113 7f874129ca80 Options.max_successive_merges: 0
+2021/03/14-01:28:08.955113 7f874129ca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:08.955114 7f874129ca80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:08.955114 7f874129ca80 Options.force_consistency_checks: 0
+2021/03/14-01:28:08.955115 7f874129ca80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:08.955500 7f874129ca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:08.955503 7f874129ca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:08.955632 7f874129ca80 EVENT_LOG_v1 {"time_micros": 1615681688955621, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:08.955637 7f874129ca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:09.617462 7f874129ca80 EVENT_LOG_v1 {"time_micros": 1615681689617459, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681718374772 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681718374772
new file mode 100644
index 0000000..889c374
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681718374772
@@ -0,0 +1,186 @@
+2021/03/14-01:28:09.629953 7f874129ca80 RocksDB version: 5.11.3
+2021/03/14-01:28:09.630004 7f874129ca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:09.630006 7f874129ca80 Compile date Mar 13 2021
+2021/03/14-01:28:09.630008 7f874129ca80 DB SUMMARY
+2021/03/14-01:28:09.630126 7f874129ca80 CURRENT file: CURRENT
+2021/03/14-01:28:09.630127 7f874129ca80 IDENTITY file: IDENTITY
+2021/03/14-01:28:09.630138 7f874129ca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:09.630139 7f874129ca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:09.630140 7f874129ca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:09.630147 7f874129ca80 Options.error_if_exists: 0
+2021/03/14-01:28:09.630148 7f874129ca80 Options.create_if_missing: 1
+2021/03/14-01:28:09.630148 7f874129ca80 Options.paranoid_checks: 1
+2021/03/14-01:28:09.630149 7f874129ca80 Options.env: 0x7f8741c56080
+2021/03/14-01:28:09.630150 7f874129ca80 Options.info_log: 0x2bf6ca0
+2021/03/14-01:28:09.630150 7f874129ca80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:09.630151 7f874129ca80 Options.statistics: (nil)
+2021/03/14-01:28:09.630152 7f874129ca80 Options.use_fsync: 0
+2021/03/14-01:28:09.630152 7f874129ca80 Options.max_log_file_size: 0
+2021/03/14-01:28:09.630153 7f874129ca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:09.630153 7f874129ca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:09.630154 7f874129ca80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:09.630155 7f874129ca80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:09.630155 7f874129ca80 Options.allow_fallocate: 1
+2021/03/14-01:28:09.630156 7f874129ca80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:09.630156 7f874129ca80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:09.630157 7f874129ca80 Options.use_direct_reads: 0
+2021/03/14-01:28:09.630158 7f874129ca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:09.630158 7f874129ca80 Options.create_missing_column_families: 0
+2021/03/14-01:28:09.630159 7f874129ca80 Options.db_log_dir:
+2021/03/14-01:28:09.630159 7f874129ca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:09.630160 7f874129ca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:09.630160 7f874129ca80 Options.max_subcompactions: 1
+2021/03/14-01:28:09.630161 7f874129ca80 Options.max_background_flushes: -1
+2021/03/14-01:28:09.630162 7f874129ca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:09.630162 7f874129ca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:09.630163 7f874129ca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:09.630163 7f874129ca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:09.630164 7f874129ca80 Options.advise_random_on_open: 1
+2021/03/14-01:28:09.630165 7f874129ca80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:09.630165 7f874129ca80 Options.write_buffer_manager: 0x2bdeb90
+2021/03/14-01:28:09.630166 7f874129ca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:09.630166 7f874129ca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:09.630167 7f874129ca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:09.630167 7f874129ca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:09.630168 7f874129ca80 Options.rate_limiter: (nil)
+2021/03/14-01:28:09.630169 7f874129ca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:09.630177 7f874129ca80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:09.630178 7f874129ca80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:09.630178 7f874129ca80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:09.630179 7f874129ca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:09.630179 7f874129ca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:09.630180 7f874129ca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:09.630181 7f874129ca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:09.630181 7f874129ca80 Options.row_cache: None
+2021/03/14-01:28:09.630182 7f874129ca80 Options.wal_filter: None
+2021/03/14-01:28:09.630182 7f874129ca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:09.630183 7f874129ca80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:09.630184 7f874129ca80 Options.preserve_deletes: 0
+2021/03/14-01:28:09.630184 7f874129ca80 Options.two_write_queues: 0
+2021/03/14-01:28:09.630185 7f874129ca80 Options.manual_wal_flush: 0
+2021/03/14-01:28:09.630186 7f874129ca80 Options.max_background_jobs: 16
+2021/03/14-01:28:09.630186 7f874129ca80 Options.max_background_compactions: -1
+2021/03/14-01:28:09.630187 7f874129ca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:09.630188 7f874129ca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:09.630188 7f874129ca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:09.630189 7f874129ca80 Options.max_total_wal_size: 0
+2021/03/14-01:28:09.630189 7f874129ca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:09.630190 7f874129ca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:09.630191 7f874129ca80 Options.max_open_files: -1
+2021/03/14-01:28:09.630191 7f874129ca80 Options.bytes_per_sync: 0
+2021/03/14-01:28:09.630192 7f874129ca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:09.630192 7f874129ca80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:09.630193 7f874129ca80 Compression algorithms supported:
+2021/03/14-01:28:09.630193 7f874129ca80 Snappy supported: 1
+2021/03/14-01:28:09.630194 7f874129ca80 Zlib supported: 1
+2021/03/14-01:28:09.630195 7f874129ca80 Bzip supported: 1
+2021/03/14-01:28:09.630195 7f874129ca80 LZ4 supported: 1
+2021/03/14-01:28:09.630196 7f874129ca80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:09.630200 7f874129ca80 ZSTD supported: 1
+2021/03/14-01:28:09.630203 7f874129ca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:09.630205 7f874129ca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:09.630302 7f874129ca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:09.630358 7f874129ca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:09.630360 7f874129ca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:09.630360 7f874129ca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:09.630361 7f874129ca80 Options.compaction_filter: None
+2021/03/14-01:28:09.630362 7f874129ca80 Options.compaction_filter_factory: None
+2021/03/14-01:28:09.630362 7f874129ca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:09.630363 7f874129ca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:09.630377 7f874129ca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2bee520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2bd3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:09.630378 7f874129ca80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:09.630378 7f874129ca80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:09.630379 7f874129ca80 Options.compression[0]: NoCompression
+2021/03/14-01:28:09.630380 7f874129ca80 Options.compression[1]: NoCompression
+2021/03/14-01:28:09.630381 7f874129ca80 Options.compression[2]: Snappy
+2021/03/14-01:28:09.630381 7f874129ca80 Options.compression[3]: Snappy
+2021/03/14-01:28:09.630382 7f874129ca80 Options.compression[4]: Snappy
+2021/03/14-01:28:09.630382 7f874129ca80 Options.compression[5]: Snappy
+2021/03/14-01:28:09.630383 7f874129ca80 Options.compression[6]: Snappy
+2021/03/14-01:28:09.630383 7f874129ca80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:09.630384 7f874129ca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:09.630385 7f874129ca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:09.630385 7f874129ca80 Options.num_levels: 7
+2021/03/14-01:28:09.630386 7f874129ca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:09.630387 7f874129ca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:09.630387 7f874129ca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:09.630388 7f874129ca80 Options.compression_opts.level: -1
+2021/03/14-01:28:09.630389 7f874129ca80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:09.630389 7f874129ca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:09.630390 7f874129ca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:09.630390 7f874129ca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:09.630391 7f874129ca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:09.630392 7f874129ca80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:09.630392 7f874129ca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:09.630393 7f874129ca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:09.630393 7f874129ca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:09.630394 7f874129ca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:09.630395 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:09.630404 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:09.630405 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:09.630405 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:09.630406 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:09.630406 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:09.630407 7f874129ca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:09.630407 7f874129ca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:09.630408 7f874129ca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:09.630409 7f874129ca80 Options.arena_block_size: 16777216
+2021/03/14-01:28:09.630409 7f874129ca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:09.630410 7f874129ca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:09.630410 7f874129ca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:09.630411 7f874129ca80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:09.630413 7f874129ca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:09.630413 7f874129ca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:09.630414 7f874129ca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:09.630415 7f874129ca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:09.630415 7f874129ca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:09.630416 7f874129ca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:09.630417 7f874129ca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:09.630418 7f874129ca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:09.630418 7f874129ca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:09.630419 7f874129ca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:09.630419 7f874129ca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:09.630420 7f874129ca80 Options.table_properties_collectors:
+2021/03/14-01:28:09.630421 7f874129ca80 Options.inplace_update_support: 0
+2021/03/14-01:28:09.630421 7f874129ca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:09.630422 7f874129ca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:09.630423 7f874129ca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:09.630423 7f874129ca80 Options.bloom_locality: 0
+2021/03/14-01:28:09.630424 7f874129ca80 Options.max_successive_merges: 0
+2021/03/14-01:28:09.630424 7f874129ca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:09.630425 7f874129ca80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:09.630426 7f874129ca80 Options.force_consistency_checks: 0
+2021/03/14-01:28:09.630426 7f874129ca80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:09.630808 7f874129ca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:09.630810 7f874129ca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:09.630943 7f874129ca80 EVENT_LOG_v1 {"time_micros": 1615681689630933, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:09.630949 7f874129ca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:10.294106 7f874129ca80 EVENT_LOG_v1 {"time_micros": 1615681690294103, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681719057177 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681719057177
new file mode 100644
index 0000000..23b8c41
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681719057177
@@ -0,0 +1,186 @@
+2021/03/14-01:28:38.375284 7fc7384b1a80 RocksDB version: 5.11.3
+2021/03/14-01:28:38.375360 7fc7384b1a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:38.375362 7fc7384b1a80 Compile date Mar 13 2021
+2021/03/14-01:28:38.375365 7fc7384b1a80 DB SUMMARY
+2021/03/14-01:28:38.375505 7fc7384b1a80 CURRENT file: CURRENT
+2021/03/14-01:28:38.375506 7fc7384b1a80 IDENTITY file: IDENTITY
+2021/03/14-01:28:38.375519 7fc7384b1a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:38.375521 7fc7384b1a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:38.375522 7fc7384b1a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:38.375529 7fc7384b1a80 Options.error_if_exists: 0
+2021/03/14-01:28:38.375530 7fc7384b1a80 Options.create_if_missing: 1
+2021/03/14-01:28:38.375531 7fc7384b1a80 Options.paranoid_checks: 1
+2021/03/14-01:28:38.375532 7fc7384b1a80 Options.env: 0x7fc738e6b080
+2021/03/14-01:28:38.375532 7fc7384b1a80 Options.info_log: 0x1d14ca0
+2021/03/14-01:28:38.375533 7fc7384b1a80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:38.375534 7fc7384b1a80 Options.statistics: (nil)
+2021/03/14-01:28:38.375535 7fc7384b1a80 Options.use_fsync: 0
+2021/03/14-01:28:38.375535 7fc7384b1a80 Options.max_log_file_size: 0
+2021/03/14-01:28:38.375536 7fc7384b1a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:38.375537 7fc7384b1a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:38.375537 7fc7384b1a80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:38.375538 7fc7384b1a80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:38.375539 7fc7384b1a80 Options.allow_fallocate: 1
+2021/03/14-01:28:38.375539 7fc7384b1a80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:38.375540 7fc7384b1a80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:38.375541 7fc7384b1a80 Options.use_direct_reads: 0
+2021/03/14-01:28:38.375541 7fc7384b1a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:38.375542 7fc7384b1a80 Options.create_missing_column_families: 0
+2021/03/14-01:28:38.375543 7fc7384b1a80 Options.db_log_dir:
+2021/03/14-01:28:38.375543 7fc7384b1a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:38.375544 7fc7384b1a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:38.375545 7fc7384b1a80 Options.max_subcompactions: 1
+2021/03/14-01:28:38.375545 7fc7384b1a80 Options.max_background_flushes: -1
+2021/03/14-01:28:38.375546 7fc7384b1a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:38.375547 7fc7384b1a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:38.375547 7fc7384b1a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:38.375548 7fc7384b1a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:38.375549 7fc7384b1a80 Options.advise_random_on_open: 1
+2021/03/14-01:28:38.375549 7fc7384b1a80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:38.375550 7fc7384b1a80 Options.write_buffer_manager: 0x1cfcb90
+2021/03/14-01:28:38.375550 7fc7384b1a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:38.375551 7fc7384b1a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:38.375552 7fc7384b1a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:38.375552 7fc7384b1a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:38.375553 7fc7384b1a80 Options.rate_limiter: (nil)
+2021/03/14-01:28:38.375555 7fc7384b1a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:38.375564 7fc7384b1a80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:38.375565 7fc7384b1a80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:38.375566 7fc7384b1a80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:38.375566 7fc7384b1a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:38.375567 7fc7384b1a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:38.375568 7fc7384b1a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:38.375568 7fc7384b1a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:38.375569 7fc7384b1a80 Options.row_cache: None
+2021/03/14-01:28:38.375570 7fc7384b1a80 Options.wal_filter: None
+2021/03/14-01:28:38.375570 7fc7384b1a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:38.375571 7fc7384b1a80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:38.375572 7fc7384b1a80 Options.preserve_deletes: 0
+2021/03/14-01:28:38.375572 7fc7384b1a80 Options.two_write_queues: 0
+2021/03/14-01:28:38.375573 7fc7384b1a80 Options.manual_wal_flush: 0
+2021/03/14-01:28:38.375574 7fc7384b1a80 Options.max_background_jobs: 16
+2021/03/14-01:28:38.375575 7fc7384b1a80 Options.max_background_compactions: -1
+2021/03/14-01:28:38.375576 7fc7384b1a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:38.375576 7fc7384b1a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:38.375577 7fc7384b1a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:38.375577 7fc7384b1a80 Options.max_total_wal_size: 0
+2021/03/14-01:28:38.375578 7fc7384b1a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:38.375579 7fc7384b1a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:38.375580 7fc7384b1a80 Options.max_open_files: -1
+2021/03/14-01:28:38.375580 7fc7384b1a80 Options.bytes_per_sync: 0
+2021/03/14-01:28:38.375581 7fc7384b1a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:38.375581 7fc7384b1a80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:38.375582 7fc7384b1a80 Compression algorithms supported:
+2021/03/14-01:28:38.375583 7fc7384b1a80 Snappy supported: 1
+2021/03/14-01:28:38.375583 7fc7384b1a80 Zlib supported: 1
+2021/03/14-01:28:38.375584 7fc7384b1a80 Bzip supported: 1
+2021/03/14-01:28:38.375585 7fc7384b1a80 LZ4 supported: 1
+2021/03/14-01:28:38.375585 7fc7384b1a80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:38.375591 7fc7384b1a80 ZSTD supported: 1
+2021/03/14-01:28:38.375595 7fc7384b1a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:38.375596 7fc7384b1a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:38.375739 7fc7384b1a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:38.375810 7fc7384b1a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:38.375812 7fc7384b1a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:38.375813 7fc7384b1a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:38.375814 7fc7384b1a80 Options.compaction_filter: None
+2021/03/14-01:28:38.375815 7fc7384b1a80 Options.compaction_filter_factory: None
+2021/03/14-01:28:38.375815 7fc7384b1a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:38.375816 7fc7384b1a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:38.375833 7fc7384b1a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d0c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1cf1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:38.375834 7fc7384b1a80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:38.375835 7fc7384b1a80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:38.375836 7fc7384b1a80 Options.compression[0]: NoCompression
+2021/03/14-01:28:38.375837 7fc7384b1a80 Options.compression[1]: NoCompression
+2021/03/14-01:28:38.375838 7fc7384b1a80 Options.compression[2]: Snappy
+2021/03/14-01:28:38.375838 7fc7384b1a80 Options.compression[3]: Snappy
+2021/03/14-01:28:38.375839 7fc7384b1a80 Options.compression[4]: Snappy
+2021/03/14-01:28:38.375840 7fc7384b1a80 Options.compression[5]: Snappy
+2021/03/14-01:28:38.375840 7fc7384b1a80 Options.compression[6]: Snappy
+2021/03/14-01:28:38.375841 7fc7384b1a80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:38.375842 7fc7384b1a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:38.375843 7fc7384b1a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:38.375843 7fc7384b1a80 Options.num_levels: 7
+2021/03/14-01:28:38.375844 7fc7384b1a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:38.375845 7fc7384b1a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:38.375845 7fc7384b1a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:38.375846 7fc7384b1a80 Options.compression_opts.level: -1
+2021/03/14-01:28:38.375847 7fc7384b1a80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:38.375847 7fc7384b1a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:38.375848 7fc7384b1a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:38.375849 7fc7384b1a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:38.375849 7fc7384b1a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:38.375850 7fc7384b1a80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:38.375851 7fc7384b1a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:38.375851 7fc7384b1a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:38.375852 7fc7384b1a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:38.375853 7fc7384b1a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:38.375854 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:38.375863 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:38.375864 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:38.375865 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:38.375866 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:38.375866 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:38.375867 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:38.375868 7fc7384b1a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:38.375868 7fc7384b1a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:38.375869 7fc7384b1a80 Options.arena_block_size: 16777216
+2021/03/14-01:28:38.375870 7fc7384b1a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:38.375870 7fc7384b1a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:38.375871 7fc7384b1a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:38.375872 7fc7384b1a80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:38.375874 7fc7384b1a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:38.375874 7fc7384b1a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:38.375875 7fc7384b1a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:38.375876 7fc7384b1a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:38.375876 7fc7384b1a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:38.375877 7fc7384b1a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:38.375878 7fc7384b1a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:38.375879 7fc7384b1a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:38.375879 7fc7384b1a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:38.375880 7fc7384b1a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:38.375880 7fc7384b1a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:38.375881 7fc7384b1a80 Options.table_properties_collectors:
+2021/03/14-01:28:38.375882 7fc7384b1a80 Options.inplace_update_support: 0
+2021/03/14-01:28:38.375882 7fc7384b1a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:38.375883 7fc7384b1a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:38.375884 7fc7384b1a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:38.375885 7fc7384b1a80 Options.bloom_locality: 0
+2021/03/14-01:28:38.375885 7fc7384b1a80 Options.max_successive_merges: 0
+2021/03/14-01:28:38.375886 7fc7384b1a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:38.375887 7fc7384b1a80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:38.375887 7fc7384b1a80 Options.force_consistency_checks: 0
+2021/03/14-01:28:38.375888 7fc7384b1a80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:38.376380 7fc7384b1a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:38.376384 7fc7384b1a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:38.376540 7fc7384b1a80 EVENT_LOG_v1 {"time_micros": 1615681718376523, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:38.376547 7fc7384b1a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:39.044915 7fc7384b1a80 EVENT_LOG_v1 {"time_micros": 1615681719044912, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681719730155 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681719730155
new file mode 100644
index 0000000..23010e2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681719730155
@@ -0,0 +1,186 @@
+2021/03/14-01:28:39.057567 7fc7384b1a80 RocksDB version: 5.11.3
+2021/03/14-01:28:39.057621 7fc7384b1a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:39.057623 7fc7384b1a80 Compile date Mar 13 2021
+2021/03/14-01:28:39.057625 7fc7384b1a80 DB SUMMARY
+2021/03/14-01:28:39.057744 7fc7384b1a80 CURRENT file: CURRENT
+2021/03/14-01:28:39.057745 7fc7384b1a80 IDENTITY file: IDENTITY
+2021/03/14-01:28:39.057756 7fc7384b1a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:39.057757 7fc7384b1a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:39.057758 7fc7384b1a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:39.057765 7fc7384b1a80 Options.error_if_exists: 0
+2021/03/14-01:28:39.057765 7fc7384b1a80 Options.create_if_missing: 1
+2021/03/14-01:28:39.057766 7fc7384b1a80 Options.paranoid_checks: 1
+2021/03/14-01:28:39.057767 7fc7384b1a80 Options.env: 0x7fc738e6b080
+2021/03/14-01:28:39.057767 7fc7384b1a80 Options.info_log: 0x1d14ca0
+2021/03/14-01:28:39.057768 7fc7384b1a80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:39.057768 7fc7384b1a80 Options.statistics: (nil)
+2021/03/14-01:28:39.057769 7fc7384b1a80 Options.use_fsync: 0
+2021/03/14-01:28:39.057770 7fc7384b1a80 Options.max_log_file_size: 0
+2021/03/14-01:28:39.057770 7fc7384b1a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:39.057771 7fc7384b1a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:39.057771 7fc7384b1a80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:39.057772 7fc7384b1a80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:39.057773 7fc7384b1a80 Options.allow_fallocate: 1
+2021/03/14-01:28:39.057773 7fc7384b1a80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:39.057774 7fc7384b1a80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:39.057774 7fc7384b1a80 Options.use_direct_reads: 0
+2021/03/14-01:28:39.057775 7fc7384b1a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:39.057775 7fc7384b1a80 Options.create_missing_column_families: 0
+2021/03/14-01:28:39.057776 7fc7384b1a80 Options.db_log_dir:
+2021/03/14-01:28:39.057777 7fc7384b1a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:39.057777 7fc7384b1a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:39.057778 7fc7384b1a80 Options.max_subcompactions: 1
+2021/03/14-01:28:39.057778 7fc7384b1a80 Options.max_background_flushes: -1
+2021/03/14-01:28:39.057779 7fc7384b1a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:39.057779 7fc7384b1a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:39.057780 7fc7384b1a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:39.057781 7fc7384b1a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:39.057781 7fc7384b1a80 Options.advise_random_on_open: 1
+2021/03/14-01:28:39.057782 7fc7384b1a80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:39.057782 7fc7384b1a80 Options.write_buffer_manager: 0x1cfcb90
+2021/03/14-01:28:39.057783 7fc7384b1a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:39.057783 7fc7384b1a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:39.057784 7fc7384b1a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:39.057785 7fc7384b1a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:39.057785 7fc7384b1a80 Options.rate_limiter: (nil)
+2021/03/14-01:28:39.057786 7fc7384b1a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:39.057794 7fc7384b1a80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:39.057795 7fc7384b1a80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:39.057796 7fc7384b1a80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:39.057796 7fc7384b1a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:39.057797 7fc7384b1a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:39.057797 7fc7384b1a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:39.057798 7fc7384b1a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:39.057798 7fc7384b1a80 Options.row_cache: None
+2021/03/14-01:28:39.057799 7fc7384b1a80 Options.wal_filter: None
+2021/03/14-01:28:39.057800 7fc7384b1a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:39.057800 7fc7384b1a80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:39.057801 7fc7384b1a80 Options.preserve_deletes: 0
+2021/03/14-01:28:39.057801 7fc7384b1a80 Options.two_write_queues: 0
+2021/03/14-01:28:39.057802 7fc7384b1a80 Options.manual_wal_flush: 0
+2021/03/14-01:28:39.057803 7fc7384b1a80 Options.max_background_jobs: 16
+2021/03/14-01:28:39.057804 7fc7384b1a80 Options.max_background_compactions: -1
+2021/03/14-01:28:39.057804 7fc7384b1a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:39.057805 7fc7384b1a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:39.057805 7fc7384b1a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:39.057806 7fc7384b1a80 Options.max_total_wal_size: 0
+2021/03/14-01:28:39.057807 7fc7384b1a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:39.057807 7fc7384b1a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:39.057808 7fc7384b1a80 Options.max_open_files: -1
+2021/03/14-01:28:39.057808 7fc7384b1a80 Options.bytes_per_sync: 0
+2021/03/14-01:28:39.057809 7fc7384b1a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:39.057809 7fc7384b1a80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:39.057810 7fc7384b1a80 Compression algorithms supported:
+2021/03/14-01:28:39.057811 7fc7384b1a80 Snappy supported: 1
+2021/03/14-01:28:39.057811 7fc7384b1a80 Zlib supported: 1
+2021/03/14-01:28:39.057812 7fc7384b1a80 Bzip supported: 1
+2021/03/14-01:28:39.057812 7fc7384b1a80 LZ4 supported: 1
+2021/03/14-01:28:39.057813 7fc7384b1a80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:39.057817 7fc7384b1a80 ZSTD supported: 1
+2021/03/14-01:28:39.057820 7fc7384b1a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:39.057821 7fc7384b1a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:39.057907 7fc7384b1a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:39.057959 7fc7384b1a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:39.057961 7fc7384b1a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:39.057962 7fc7384b1a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:39.057963 7fc7384b1a80 Options.compaction_filter: None
+2021/03/14-01:28:39.057963 7fc7384b1a80 Options.compaction_filter_factory: None
+2021/03/14-01:28:39.057964 7fc7384b1a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:39.057965 7fc7384b1a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:39.057978 7fc7384b1a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d0c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1cf1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:39.057979 7fc7384b1a80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:39.057980 7fc7384b1a80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:39.057981 7fc7384b1a80 Options.compression[0]: NoCompression
+2021/03/14-01:28:39.057981 7fc7384b1a80 Options.compression[1]: NoCompression
+2021/03/14-01:28:39.057982 7fc7384b1a80 Options.compression[2]: Snappy
+2021/03/14-01:28:39.057982 7fc7384b1a80 Options.compression[3]: Snappy
+2021/03/14-01:28:39.057983 7fc7384b1a80 Options.compression[4]: Snappy
+2021/03/14-01:28:39.057984 7fc7384b1a80 Options.compression[5]: Snappy
+2021/03/14-01:28:39.057984 7fc7384b1a80 Options.compression[6]: Snappy
+2021/03/14-01:28:39.057985 7fc7384b1a80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:39.057985 7fc7384b1a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:39.057986 7fc7384b1a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:39.057987 7fc7384b1a80 Options.num_levels: 7
+2021/03/14-01:28:39.057987 7fc7384b1a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:39.057988 7fc7384b1a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:39.057988 7fc7384b1a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:39.057989 7fc7384b1a80 Options.compression_opts.level: -1
+2021/03/14-01:28:39.057990 7fc7384b1a80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:39.057990 7fc7384b1a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:39.057991 7fc7384b1a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:39.057991 7fc7384b1a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:39.057992 7fc7384b1a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:39.057993 7fc7384b1a80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:39.057993 7fc7384b1a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:39.057994 7fc7384b1a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:39.057994 7fc7384b1a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:39.057995 7fc7384b1a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:39.057996 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:39.058004 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:39.058005 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:39.058005 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:39.058006 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:39.058006 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:39.058007 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:39.058007 7fc7384b1a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:39.058008 7fc7384b1a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:39.058008 7fc7384b1a80 Options.arena_block_size: 16777216
+2021/03/14-01:28:39.058009 7fc7384b1a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:39.058010 7fc7384b1a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:39.058010 7fc7384b1a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:39.058011 7fc7384b1a80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:39.058012 7fc7384b1a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:39.058013 7fc7384b1a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:39.058014 7fc7384b1a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:39.058014 7fc7384b1a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:39.058015 7fc7384b1a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:39.058016 7fc7384b1a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:39.058016 7fc7384b1a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:39.058017 7fc7384b1a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:39.058018 7fc7384b1a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:39.058018 7fc7384b1a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:39.058019 7fc7384b1a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:39.058020 7fc7384b1a80 Options.table_properties_collectors:
+2021/03/14-01:28:39.058020 7fc7384b1a80 Options.inplace_update_support: 0
+2021/03/14-01:28:39.058021 7fc7384b1a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:39.058021 7fc7384b1a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:39.058022 7fc7384b1a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:39.058023 7fc7384b1a80 Options.bloom_locality: 0
+2021/03/14-01:28:39.058023 7fc7384b1a80 Options.max_successive_merges: 0
+2021/03/14-01:28:39.058024 7fc7384b1a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:39.058024 7fc7384b1a80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:39.058025 7fc7384b1a80 Options.force_consistency_checks: 0
+2021/03/14-01:28:39.058025 7fc7384b1a80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:39.058404 7fc7384b1a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:39.058406 7fc7384b1a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:39.058541 7fc7384b1a80 EVENT_LOG_v1 {"time_micros": 1615681719058529, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:39.058547 7fc7384b1a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:39.718171 7fc7384b1a80 EVENT_LOG_v1 {"time_micros": 1615681719718168, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681720398309 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681720398309
new file mode 100644
index 0000000..22ce97b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681720398309
@@ -0,0 +1,186 @@
+2021/03/14-01:28:39.730535 7fc7384b1a80 RocksDB version: 5.11.3
+2021/03/14-01:28:39.730585 7fc7384b1a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:39.730587 7fc7384b1a80 Compile date Mar 13 2021
+2021/03/14-01:28:39.730589 7fc7384b1a80 DB SUMMARY
+2021/03/14-01:28:39.730706 7fc7384b1a80 CURRENT file: CURRENT
+2021/03/14-01:28:39.730707 7fc7384b1a80 IDENTITY file: IDENTITY
+2021/03/14-01:28:39.730719 7fc7384b1a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:39.730720 7fc7384b1a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:39.730721 7fc7384b1a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:39.730727 7fc7384b1a80 Options.error_if_exists: 0
+2021/03/14-01:28:39.730728 7fc7384b1a80 Options.create_if_missing: 1
+2021/03/14-01:28:39.730729 7fc7384b1a80 Options.paranoid_checks: 1
+2021/03/14-01:28:39.730729 7fc7384b1a80 Options.env: 0x7fc738e6b080
+2021/03/14-01:28:39.730730 7fc7384b1a80 Options.info_log: 0x1d14ca0
+2021/03/14-01:28:39.730731 7fc7384b1a80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:39.730731 7fc7384b1a80 Options.statistics: (nil)
+2021/03/14-01:28:39.730732 7fc7384b1a80 Options.use_fsync: 0
+2021/03/14-01:28:39.730732 7fc7384b1a80 Options.max_log_file_size: 0
+2021/03/14-01:28:39.730733 7fc7384b1a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:39.730734 7fc7384b1a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:39.730734 7fc7384b1a80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:39.730735 7fc7384b1a80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:39.730735 7fc7384b1a80 Options.allow_fallocate: 1
+2021/03/14-01:28:39.730736 7fc7384b1a80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:39.730736 7fc7384b1a80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:39.730737 7fc7384b1a80 Options.use_direct_reads: 0
+2021/03/14-01:28:39.730737 7fc7384b1a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:39.730738 7fc7384b1a80 Options.create_missing_column_families: 0
+2021/03/14-01:28:39.730739 7fc7384b1a80 Options.db_log_dir:
+2021/03/14-01:28:39.730739 7fc7384b1a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:39.730740 7fc7384b1a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:39.730740 7fc7384b1a80 Options.max_subcompactions: 1
+2021/03/14-01:28:39.730741 7fc7384b1a80 Options.max_background_flushes: -1
+2021/03/14-01:28:39.730741 7fc7384b1a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:39.730742 7fc7384b1a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:39.730743 7fc7384b1a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:39.730743 7fc7384b1a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:39.730744 7fc7384b1a80 Options.advise_random_on_open: 1
+2021/03/14-01:28:39.730744 7fc7384b1a80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:39.730745 7fc7384b1a80 Options.write_buffer_manager: 0x1cfcb90
+2021/03/14-01:28:39.730745 7fc7384b1a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:39.730746 7fc7384b1a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:39.730746 7fc7384b1a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:39.730747 7fc7384b1a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:39.730748 7fc7384b1a80 Options.rate_limiter: (nil)
+2021/03/14-01:28:39.730749 7fc7384b1a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:39.730757 7fc7384b1a80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:39.730758 7fc7384b1a80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:39.730758 7fc7384b1a80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:39.730759 7fc7384b1a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:39.730759 7fc7384b1a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:39.730760 7fc7384b1a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:39.730760 7fc7384b1a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:39.730761 7fc7384b1a80 Options.row_cache: None
+2021/03/14-01:28:39.730761 7fc7384b1a80 Options.wal_filter: None
+2021/03/14-01:28:39.730762 7fc7384b1a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:39.730763 7fc7384b1a80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:39.730763 7fc7384b1a80 Options.preserve_deletes: 0
+2021/03/14-01:28:39.730764 7fc7384b1a80 Options.two_write_queues: 0
+2021/03/14-01:28:39.730764 7fc7384b1a80 Options.manual_wal_flush: 0
+2021/03/14-01:28:39.730765 7fc7384b1a80 Options.max_background_jobs: 16
+2021/03/14-01:28:39.730766 7fc7384b1a80 Options.max_background_compactions: -1
+2021/03/14-01:28:39.730767 7fc7384b1a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:39.730767 7fc7384b1a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:39.730768 7fc7384b1a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:39.730768 7fc7384b1a80 Options.max_total_wal_size: 0
+2021/03/14-01:28:39.730769 7fc7384b1a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:39.730769 7fc7384b1a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:39.730770 7fc7384b1a80 Options.max_open_files: -1
+2021/03/14-01:28:39.730770 7fc7384b1a80 Options.bytes_per_sync: 0
+2021/03/14-01:28:39.730771 7fc7384b1a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:39.730772 7fc7384b1a80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:39.730772 7fc7384b1a80 Compression algorithms supported:
+2021/03/14-01:28:39.730773 7fc7384b1a80 Snappy supported: 1
+2021/03/14-01:28:39.730773 7fc7384b1a80 Zlib supported: 1
+2021/03/14-01:28:39.730774 7fc7384b1a80 Bzip supported: 1
+2021/03/14-01:28:39.730774 7fc7384b1a80 LZ4 supported: 1
+2021/03/14-01:28:39.730775 7fc7384b1a80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:39.730779 7fc7384b1a80 ZSTD supported: 1
+2021/03/14-01:28:39.730782 7fc7384b1a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:39.730783 7fc7384b1a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:39.730869 7fc7384b1a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:39.730921 7fc7384b1a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:39.730922 7fc7384b1a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:39.730923 7fc7384b1a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:39.730924 7fc7384b1a80 Options.compaction_filter: None
+2021/03/14-01:28:39.730924 7fc7384b1a80 Options.compaction_filter_factory: None
+2021/03/14-01:28:39.730925 7fc7384b1a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:39.730926 7fc7384b1a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:39.730939 7fc7384b1a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d0c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1cf1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:39.730939 7fc7384b1a80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:39.730940 7fc7384b1a80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:39.730941 7fc7384b1a80 Options.compression[0]: NoCompression
+2021/03/14-01:28:39.730941 7fc7384b1a80 Options.compression[1]: NoCompression
+2021/03/14-01:28:39.730942 7fc7384b1a80 Options.compression[2]: Snappy
+2021/03/14-01:28:39.730943 7fc7384b1a80 Options.compression[3]: Snappy
+2021/03/14-01:28:39.730943 7fc7384b1a80 Options.compression[4]: Snappy
+2021/03/14-01:28:39.730944 7fc7384b1a80 Options.compression[5]: Snappy
+2021/03/14-01:28:39.730944 7fc7384b1a80 Options.compression[6]: Snappy
+2021/03/14-01:28:39.730945 7fc7384b1a80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:39.730946 7fc7384b1a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:39.730947 7fc7384b1a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:39.730947 7fc7384b1a80 Options.num_levels: 7
+2021/03/14-01:28:39.730948 7fc7384b1a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:39.730948 7fc7384b1a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:39.730949 7fc7384b1a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:39.730949 7fc7384b1a80 Options.compression_opts.level: -1
+2021/03/14-01:28:39.730950 7fc7384b1a80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:39.730950 7fc7384b1a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:39.730951 7fc7384b1a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:39.730952 7fc7384b1a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:39.730952 7fc7384b1a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:39.730953 7fc7384b1a80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:39.730953 7fc7384b1a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:39.730954 7fc7384b1a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:39.730955 7fc7384b1a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:39.730955 7fc7384b1a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:39.730956 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:39.730964 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:39.730965 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:39.730965 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:39.730966 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:39.730966 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:39.730967 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:39.730968 7fc7384b1a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:39.730968 7fc7384b1a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:39.730969 7fc7384b1a80 Options.arena_block_size: 16777216
+2021/03/14-01:28:39.730969 7fc7384b1a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:39.730970 7fc7384b1a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:39.730971 7fc7384b1a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:39.730971 7fc7384b1a80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:39.730973 7fc7384b1a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:39.730973 7fc7384b1a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:39.730974 7fc7384b1a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:39.730975 7fc7384b1a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:39.730975 7fc7384b1a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:39.730976 7fc7384b1a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:39.730976 7fc7384b1a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:39.730977 7fc7384b1a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:39.730978 7fc7384b1a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:39.730978 7fc7384b1a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:39.730979 7fc7384b1a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:39.730979 7fc7384b1a80 Options.table_properties_collectors:
+2021/03/14-01:28:39.730980 7fc7384b1a80 Options.inplace_update_support: 0
+2021/03/14-01:28:39.730981 7fc7384b1a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:39.730981 7fc7384b1a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:39.730982 7fc7384b1a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:39.730983 7fc7384b1a80 Options.bloom_locality: 0
+2021/03/14-01:28:39.730983 7fc7384b1a80 Options.max_successive_merges: 0
+2021/03/14-01:28:39.730984 7fc7384b1a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:39.730984 7fc7384b1a80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:39.730985 7fc7384b1a80 Options.force_consistency_checks: 0
+2021/03/14-01:28:39.730985 7fc7384b1a80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:39.731358 7fc7384b1a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:39.731360 7fc7384b1a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:39.731482 7fc7384b1a80 EVENT_LOG_v1 {"time_micros": 1615681719731470, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:39.731487 7fc7384b1a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:40.385443 7fc7384b1a80 EVENT_LOG_v1 {"time_micros": 1615681720385439, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681728668452 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681728668452
new file mode 100644
index 0000000..356ae6e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681728668452
@@ -0,0 +1,186 @@
+2021/03/14-01:28:40.398719 7fc7384b1a80 RocksDB version: 5.11.3
+2021/03/14-01:28:40.398771 7fc7384b1a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:40.398772 7fc7384b1a80 Compile date Mar 13 2021
+2021/03/14-01:28:40.398775 7fc7384b1a80 DB SUMMARY
+2021/03/14-01:28:40.398890 7fc7384b1a80 CURRENT file: CURRENT
+2021/03/14-01:28:40.398891 7fc7384b1a80 IDENTITY file: IDENTITY
+2021/03/14-01:28:40.398902 7fc7384b1a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:40.398903 7fc7384b1a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:40.398904 7fc7384b1a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:40.398910 7fc7384b1a80 Options.error_if_exists: 0
+2021/03/14-01:28:40.398911 7fc7384b1a80 Options.create_if_missing: 1
+2021/03/14-01:28:40.398911 7fc7384b1a80 Options.paranoid_checks: 1
+2021/03/14-01:28:40.398912 7fc7384b1a80 Options.env: 0x7fc738e6b080
+2021/03/14-01:28:40.398913 7fc7384b1a80 Options.info_log: 0x1d14ca0
+2021/03/14-01:28:40.398913 7fc7384b1a80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:40.398914 7fc7384b1a80 Options.statistics: (nil)
+2021/03/14-01:28:40.398914 7fc7384b1a80 Options.use_fsync: 0
+2021/03/14-01:28:40.398915 7fc7384b1a80 Options.max_log_file_size: 0
+2021/03/14-01:28:40.398916 7fc7384b1a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:40.398916 7fc7384b1a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:40.398917 7fc7384b1a80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:40.398917 7fc7384b1a80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:40.398918 7fc7384b1a80 Options.allow_fallocate: 1
+2021/03/14-01:28:40.398918 7fc7384b1a80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:40.398919 7fc7384b1a80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:40.398920 7fc7384b1a80 Options.use_direct_reads: 0
+2021/03/14-01:28:40.398920 7fc7384b1a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:40.398921 7fc7384b1a80 Options.create_missing_column_families: 0
+2021/03/14-01:28:40.398921 7fc7384b1a80 Options.db_log_dir:
+2021/03/14-01:28:40.398922 7fc7384b1a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:40.398922 7fc7384b1a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:40.398923 7fc7384b1a80 Options.max_subcompactions: 1
+2021/03/14-01:28:40.398923 7fc7384b1a80 Options.max_background_flushes: -1
+2021/03/14-01:28:40.398924 7fc7384b1a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:40.398924 7fc7384b1a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:40.398925 7fc7384b1a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:40.398925 7fc7384b1a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:40.398926 7fc7384b1a80 Options.advise_random_on_open: 1
+2021/03/14-01:28:40.398927 7fc7384b1a80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:40.398927 7fc7384b1a80 Options.write_buffer_manager: 0x1cfcb90
+2021/03/14-01:28:40.398928 7fc7384b1a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:40.398928 7fc7384b1a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:40.398929 7fc7384b1a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:40.398929 7fc7384b1a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:40.398930 7fc7384b1a80 Options.rate_limiter: (nil)
+2021/03/14-01:28:40.398931 7fc7384b1a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:40.398939 7fc7384b1a80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:40.398939 7fc7384b1a80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:40.398940 7fc7384b1a80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:40.398940 7fc7384b1a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:40.398941 7fc7384b1a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:40.398941 7fc7384b1a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:40.398942 7fc7384b1a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:40.398942 7fc7384b1a80 Options.row_cache: None
+2021/03/14-01:28:40.398943 7fc7384b1a80 Options.wal_filter: None
+2021/03/14-01:28:40.398944 7fc7384b1a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:40.398944 7fc7384b1a80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:40.398945 7fc7384b1a80 Options.preserve_deletes: 0
+2021/03/14-01:28:40.398945 7fc7384b1a80 Options.two_write_queues: 0
+2021/03/14-01:28:40.398946 7fc7384b1a80 Options.manual_wal_flush: 0
+2021/03/14-01:28:40.398947 7fc7384b1a80 Options.max_background_jobs: 16
+2021/03/14-01:28:40.398947 7fc7384b1a80 Options.max_background_compactions: -1
+2021/03/14-01:28:40.398948 7fc7384b1a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:40.398949 7fc7384b1a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:40.398949 7fc7384b1a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:40.398950 7fc7384b1a80 Options.max_total_wal_size: 0
+2021/03/14-01:28:40.398950 7fc7384b1a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:40.398951 7fc7384b1a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:40.398951 7fc7384b1a80 Options.max_open_files: -1
+2021/03/14-01:28:40.398952 7fc7384b1a80 Options.bytes_per_sync: 0
+2021/03/14-01:28:40.398952 7fc7384b1a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:40.398953 7fc7384b1a80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:40.398953 7fc7384b1a80 Compression algorithms supported:
+2021/03/14-01:28:40.398954 7fc7384b1a80 Snappy supported: 1
+2021/03/14-01:28:40.398955 7fc7384b1a80 Zlib supported: 1
+2021/03/14-01:28:40.398955 7fc7384b1a80 Bzip supported: 1
+2021/03/14-01:28:40.398956 7fc7384b1a80 LZ4 supported: 1
+2021/03/14-01:28:40.398956 7fc7384b1a80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:40.398960 7fc7384b1a80 ZSTD supported: 1
+2021/03/14-01:28:40.398963 7fc7384b1a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:40.398964 7fc7384b1a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:40.399050 7fc7384b1a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:40.399102 7fc7384b1a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:40.399103 7fc7384b1a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:40.399104 7fc7384b1a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:40.399105 7fc7384b1a80 Options.compaction_filter: None
+2021/03/14-01:28:40.399105 7fc7384b1a80 Options.compaction_filter_factory: None
+2021/03/14-01:28:40.399106 7fc7384b1a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:40.399107 7fc7384b1a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:40.399120 7fc7384b1a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1d0c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1cf1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:40.399121 7fc7384b1a80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:40.399121 7fc7384b1a80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:40.399122 7fc7384b1a80 Options.compression[0]: NoCompression
+2021/03/14-01:28:40.399123 7fc7384b1a80 Options.compression[1]: NoCompression
+2021/03/14-01:28:40.399123 7fc7384b1a80 Options.compression[2]: Snappy
+2021/03/14-01:28:40.399124 7fc7384b1a80 Options.compression[3]: Snappy
+2021/03/14-01:28:40.399124 7fc7384b1a80 Options.compression[4]: Snappy
+2021/03/14-01:28:40.399125 7fc7384b1a80 Options.compression[5]: Snappy
+2021/03/14-01:28:40.399126 7fc7384b1a80 Options.compression[6]: Snappy
+2021/03/14-01:28:40.399126 7fc7384b1a80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:40.399127 7fc7384b1a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:40.399127 7fc7384b1a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:40.399128 7fc7384b1a80 Options.num_levels: 7
+2021/03/14-01:28:40.399129 7fc7384b1a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:40.399129 7fc7384b1a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:40.399130 7fc7384b1a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:40.399130 7fc7384b1a80 Options.compression_opts.level: -1
+2021/03/14-01:28:40.399131 7fc7384b1a80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:40.399131 7fc7384b1a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:40.399132 7fc7384b1a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:40.399132 7fc7384b1a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:40.399133 7fc7384b1a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:40.399134 7fc7384b1a80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:40.399134 7fc7384b1a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:40.399135 7fc7384b1a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:40.399135 7fc7384b1a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:40.399136 7fc7384b1a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:40.399137 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:40.399145 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:40.399145 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:40.399146 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:40.399147 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:40.399147 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:40.399148 7fc7384b1a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:40.399148 7fc7384b1a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:40.399149 7fc7384b1a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:40.399149 7fc7384b1a80 Options.arena_block_size: 16777216
+2021/03/14-01:28:40.399150 7fc7384b1a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:40.399150 7fc7384b1a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:40.399151 7fc7384b1a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:40.399152 7fc7384b1a80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:40.399153 7fc7384b1a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:40.399154 7fc7384b1a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:40.399154 7fc7384b1a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:40.399155 7fc7384b1a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:40.399155 7fc7384b1a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:40.399156 7fc7384b1a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:40.399157 7fc7384b1a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:40.399157 7fc7384b1a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:40.399158 7fc7384b1a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:40.399159 7fc7384b1a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:40.399159 7fc7384b1a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:40.399160 7fc7384b1a80 Options.table_properties_collectors:
+2021/03/14-01:28:40.399160 7fc7384b1a80 Options.inplace_update_support: 0
+2021/03/14-01:28:40.399161 7fc7384b1a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:40.399161 7fc7384b1a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:40.399162 7fc7384b1a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:40.399163 7fc7384b1a80 Options.bloom_locality: 0
+2021/03/14-01:28:40.399163 7fc7384b1a80 Options.max_successive_merges: 0
+2021/03/14-01:28:40.399164 7fc7384b1a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:40.399164 7fc7384b1a80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:40.399165 7fc7384b1a80 Options.force_consistency_checks: 0
+2021/03/14-01:28:40.399165 7fc7384b1a80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:40.399611 7fc7384b1a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:40.399613 7fc7384b1a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:40.399741 7fc7384b1a80 EVENT_LOG_v1 {"time_micros": 1615681720399729, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:40.399746 7fc7384b1a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:41.057752 7fc7384b1a80 EVENT_LOG_v1 {"time_micros": 1615681721057748, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681729366954 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681729366954
new file mode 100644
index 0000000..42b0dcb
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681729366954
@@ -0,0 +1,186 @@
+2021/03/14-01:28:48.668949 7ffaabb8fa80 RocksDB version: 5.11.3
+2021/03/14-01:28:48.669027 7ffaabb8fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:48.669029 7ffaabb8fa80 Compile date Mar 13 2021
+2021/03/14-01:28:48.669032 7ffaabb8fa80 DB SUMMARY
+2021/03/14-01:28:48.669179 7ffaabb8fa80 CURRENT file: CURRENT
+2021/03/14-01:28:48.669180 7ffaabb8fa80 IDENTITY file: IDENTITY
+2021/03/14-01:28:48.669193 7ffaabb8fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:48.669195 7ffaabb8fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:48.669196 7ffaabb8fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:48.669204 7ffaabb8fa80 Options.error_if_exists: 0
+2021/03/14-01:28:48.669205 7ffaabb8fa80 Options.create_if_missing: 1
+2021/03/14-01:28:48.669205 7ffaabb8fa80 Options.paranoid_checks: 1
+2021/03/14-01:28:48.669206 7ffaabb8fa80 Options.env: 0x7ffaac549080
+2021/03/14-01:28:48.669207 7ffaabb8fa80 Options.info_log: 0x223aca0
+2021/03/14-01:28:48.669207 7ffaabb8fa80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:48.669208 7ffaabb8fa80 Options.statistics: (nil)
+2021/03/14-01:28:48.669209 7ffaabb8fa80 Options.use_fsync: 0
+2021/03/14-01:28:48.669209 7ffaabb8fa80 Options.max_log_file_size: 0
+2021/03/14-01:28:48.669210 7ffaabb8fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:48.669211 7ffaabb8fa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:48.669211 7ffaabb8fa80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:48.669212 7ffaabb8fa80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:48.669213 7ffaabb8fa80 Options.allow_fallocate: 1
+2021/03/14-01:28:48.669214 7ffaabb8fa80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:48.669214 7ffaabb8fa80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:48.669215 7ffaabb8fa80 Options.use_direct_reads: 0
+2021/03/14-01:28:48.669215 7ffaabb8fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:48.669216 7ffaabb8fa80 Options.create_missing_column_families: 0
+2021/03/14-01:28:48.669217 7ffaabb8fa80 Options.db_log_dir:
+2021/03/14-01:28:48.669217 7ffaabb8fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:48.669218 7ffaabb8fa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:48.669219 7ffaabb8fa80 Options.max_subcompactions: 1
+2021/03/14-01:28:48.669219 7ffaabb8fa80 Options.max_background_flushes: -1
+2021/03/14-01:28:48.669220 7ffaabb8fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:48.669221 7ffaabb8fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:48.669221 7ffaabb8fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:48.669222 7ffaabb8fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:48.669223 7ffaabb8fa80 Options.advise_random_on_open: 1
+2021/03/14-01:28:48.669223 7ffaabb8fa80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:48.669224 7ffaabb8fa80 Options.write_buffer_manager: 0x2222b90
+2021/03/14-01:28:48.669225 7ffaabb8fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:48.669225 7ffaabb8fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:48.669226 7ffaabb8fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:48.669227 7ffaabb8fa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:48.669227 7ffaabb8fa80 Options.rate_limiter: (nil)
+2021/03/14-01:28:48.669229 7ffaabb8fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:48.669250 7ffaabb8fa80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:48.669251 7ffaabb8fa80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:48.669252 7ffaabb8fa80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:48.669252 7ffaabb8fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:48.669253 7ffaabb8fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:48.669254 7ffaabb8fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:48.669254 7ffaabb8fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:48.669255 7ffaabb8fa80 Options.row_cache: None
+2021/03/14-01:28:48.669256 7ffaabb8fa80 Options.wal_filter: None
+2021/03/14-01:28:48.669256 7ffaabb8fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:48.669257 7ffaabb8fa80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:48.669258 7ffaabb8fa80 Options.preserve_deletes: 0
+2021/03/14-01:28:48.669258 7ffaabb8fa80 Options.two_write_queues: 0
+2021/03/14-01:28:48.669259 7ffaabb8fa80 Options.manual_wal_flush: 0
+2021/03/14-01:28:48.669260 7ffaabb8fa80 Options.max_background_jobs: 16
+2021/03/14-01:28:48.669261 7ffaabb8fa80 Options.max_background_compactions: -1
+2021/03/14-01:28:48.669262 7ffaabb8fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:48.669262 7ffaabb8fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:48.669263 7ffaabb8fa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:48.669264 7ffaabb8fa80 Options.max_total_wal_size: 0
+2021/03/14-01:28:48.669264 7ffaabb8fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:48.669265 7ffaabb8fa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:48.669266 7ffaabb8fa80 Options.max_open_files: -1
+2021/03/14-01:28:48.669266 7ffaabb8fa80 Options.bytes_per_sync: 0
+2021/03/14-01:28:48.669267 7ffaabb8fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:48.669268 7ffaabb8fa80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:48.669268 7ffaabb8fa80 Compression algorithms supported:
+2021/03/14-01:28:48.669269 7ffaabb8fa80 Snappy supported: 1
+2021/03/14-01:28:48.669270 7ffaabb8fa80 Zlib supported: 1
+2021/03/14-01:28:48.669270 7ffaabb8fa80 Bzip supported: 1
+2021/03/14-01:28:48.669271 7ffaabb8fa80 LZ4 supported: 1
+2021/03/14-01:28:48.669272 7ffaabb8fa80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:48.669277 7ffaabb8fa80 ZSTD supported: 1
+2021/03/14-01:28:48.669281 7ffaabb8fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:48.669283 7ffaabb8fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:48.669447 7ffaabb8fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:48.669520 7ffaabb8fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:48.669522 7ffaabb8fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:48.669523 7ffaabb8fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:48.669523 7ffaabb8fa80 Options.compaction_filter: None
+2021/03/14-01:28:48.669524 7ffaabb8fa80 Options.compaction_filter_factory: None
+2021/03/14-01:28:48.669525 7ffaabb8fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:48.669526 7ffaabb8fa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:48.669544 7ffaabb8fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2232520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2217c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:48.669545 7ffaabb8fa80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:48.669545 7ffaabb8fa80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:48.669546 7ffaabb8fa80 Options.compression[0]: NoCompression
+2021/03/14-01:28:48.669547 7ffaabb8fa80 Options.compression[1]: NoCompression
+2021/03/14-01:28:48.669548 7ffaabb8fa80 Options.compression[2]: Snappy
+2021/03/14-01:28:48.669548 7ffaabb8fa80 Options.compression[3]: Snappy
+2021/03/14-01:28:48.669549 7ffaabb8fa80 Options.compression[4]: Snappy
+2021/03/14-01:28:48.669550 7ffaabb8fa80 Options.compression[5]: Snappy
+2021/03/14-01:28:48.669550 7ffaabb8fa80 Options.compression[6]: Snappy
+2021/03/14-01:28:48.669551 7ffaabb8fa80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:48.669552 7ffaabb8fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:48.669553 7ffaabb8fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:48.669553 7ffaabb8fa80 Options.num_levels: 7
+2021/03/14-01:28:48.669554 7ffaabb8fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:48.669555 7ffaabb8fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:48.669555 7ffaabb8fa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:48.669556 7ffaabb8fa80 Options.compression_opts.level: -1
+2021/03/14-01:28:48.669557 7ffaabb8fa80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:48.669557 7ffaabb8fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:48.669558 7ffaabb8fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:48.669559 7ffaabb8fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:48.669559 7ffaabb8fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:48.669560 7ffaabb8fa80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:48.669561 7ffaabb8fa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:48.669561 7ffaabb8fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:48.669562 7ffaabb8fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:48.669563 7ffaabb8fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:48.669565 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:48.669575 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:48.669576 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:48.669576 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:48.669577 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:48.669577 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:48.669578 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:48.669579 7ffaabb8fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:48.669579 7ffaabb8fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:48.669580 7ffaabb8fa80 Options.arena_block_size: 16777216
+2021/03/14-01:28:48.669581 7ffaabb8fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:48.669581 7ffaabb8fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:48.669582 7ffaabb8fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:48.669583 7ffaabb8fa80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:48.669585 7ffaabb8fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:48.669586 7ffaabb8fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:48.669586 7ffaabb8fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:48.669587 7ffaabb8fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:48.669588 7ffaabb8fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:48.669589 7ffaabb8fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:48.669589 7ffaabb8fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:48.669590 7ffaabb8fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:48.669591 7ffaabb8fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:48.669592 7ffaabb8fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:48.669592 7ffaabb8fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:48.669593 7ffaabb8fa80 Options.table_properties_collectors:
+2021/03/14-01:28:48.669594 7ffaabb8fa80 Options.inplace_update_support: 0
+2021/03/14-01:28:48.669594 7ffaabb8fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:48.669595 7ffaabb8fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:48.669596 7ffaabb8fa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:48.669597 7ffaabb8fa80 Options.bloom_locality: 0
+2021/03/14-01:28:48.669597 7ffaabb8fa80 Options.max_successive_merges: 0
+2021/03/14-01:28:48.669598 7ffaabb8fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:48.669598 7ffaabb8fa80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:48.669599 7ffaabb8fa80 Options.force_consistency_checks: 0
+2021/03/14-01:28:48.669600 7ffaabb8fa80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:48.670111 7ffaabb8fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:48.670115 7ffaabb8fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:48.670288 7ffaabb8fa80 EVENT_LOG_v1 {"time_micros": 1615681728670274, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:48.670296 7ffaabb8fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:49.354205 7ffaabb8fa80 EVENT_LOG_v1 {"time_micros": 1615681729354202, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681730049013 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681730049013
new file mode 100644
index 0000000..89556e4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681730049013
@@ -0,0 +1,186 @@
+2021/03/14-01:28:49.367343 7ffaabb8fa80 RocksDB version: 5.11.3
+2021/03/14-01:28:49.367402 7ffaabb8fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:49.367404 7ffaabb8fa80 Compile date Mar 13 2021
+2021/03/14-01:28:49.367406 7ffaabb8fa80 DB SUMMARY
+2021/03/14-01:28:49.367525 7ffaabb8fa80 CURRENT file: CURRENT
+2021/03/14-01:28:49.367526 7ffaabb8fa80 IDENTITY file: IDENTITY
+2021/03/14-01:28:49.367538 7ffaabb8fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:49.367539 7ffaabb8fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:49.367540 7ffaabb8fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:49.367544 7ffaabb8fa80 Options.error_if_exists: 0
+2021/03/14-01:28:49.367545 7ffaabb8fa80 Options.create_if_missing: 1
+2021/03/14-01:28:49.367545 7ffaabb8fa80 Options.paranoid_checks: 1
+2021/03/14-01:28:49.367546 7ffaabb8fa80 Options.env: 0x7ffaac549080
+2021/03/14-01:28:49.367547 7ffaabb8fa80 Options.info_log: 0x223aca0
+2021/03/14-01:28:49.367547 7ffaabb8fa80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:49.367548 7ffaabb8fa80 Options.statistics: (nil)
+2021/03/14-01:28:49.367548 7ffaabb8fa80 Options.use_fsync: 0
+2021/03/14-01:28:49.367549 7ffaabb8fa80 Options.max_log_file_size: 0
+2021/03/14-01:28:49.367550 7ffaabb8fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:49.367550 7ffaabb8fa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:49.367551 7ffaabb8fa80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:49.367551 7ffaabb8fa80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:49.367552 7ffaabb8fa80 Options.allow_fallocate: 1
+2021/03/14-01:28:49.367553 7ffaabb8fa80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:49.367553 7ffaabb8fa80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:49.367554 7ffaabb8fa80 Options.use_direct_reads: 0
+2021/03/14-01:28:49.367554 7ffaabb8fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:49.367555 7ffaabb8fa80 Options.create_missing_column_families: 0
+2021/03/14-01:28:49.367555 7ffaabb8fa80 Options.db_log_dir:
+2021/03/14-01:28:49.367556 7ffaabb8fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:49.367556 7ffaabb8fa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:49.367557 7ffaabb8fa80 Options.max_subcompactions: 1
+2021/03/14-01:28:49.367558 7ffaabb8fa80 Options.max_background_flushes: -1
+2021/03/14-01:28:49.367558 7ffaabb8fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:49.367559 7ffaabb8fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:49.367559 7ffaabb8fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:49.367560 7ffaabb8fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:49.367560 7ffaabb8fa80 Options.advise_random_on_open: 1
+2021/03/14-01:28:49.367561 7ffaabb8fa80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:49.367561 7ffaabb8fa80 Options.write_buffer_manager: 0x2222b90
+2021/03/14-01:28:49.367562 7ffaabb8fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:49.367563 7ffaabb8fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:49.367563 7ffaabb8fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:49.367564 7ffaabb8fa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:49.367564 7ffaabb8fa80 Options.rate_limiter: (nil)
+2021/03/14-01:28:49.367566 7ffaabb8fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:49.367573 7ffaabb8fa80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:49.367573 7ffaabb8fa80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:49.367574 7ffaabb8fa80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:49.367575 7ffaabb8fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:49.367575 7ffaabb8fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:49.367576 7ffaabb8fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:49.367576 7ffaabb8fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:49.367577 7ffaabb8fa80 Options.row_cache: None
+2021/03/14-01:28:49.367577 7ffaabb8fa80 Options.wal_filter: None
+2021/03/14-01:28:49.367578 7ffaabb8fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:49.367579 7ffaabb8fa80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:49.367579 7ffaabb8fa80 Options.preserve_deletes: 0
+2021/03/14-01:28:49.367580 7ffaabb8fa80 Options.two_write_queues: 0
+2021/03/14-01:28:49.367580 7ffaabb8fa80 Options.manual_wal_flush: 0
+2021/03/14-01:28:49.367581 7ffaabb8fa80 Options.max_background_jobs: 16
+2021/03/14-01:28:49.367582 7ffaabb8fa80 Options.max_background_compactions: -1
+2021/03/14-01:28:49.367583 7ffaabb8fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:49.367583 7ffaabb8fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:49.367584 7ffaabb8fa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:49.367584 7ffaabb8fa80 Options.max_total_wal_size: 0
+2021/03/14-01:28:49.367585 7ffaabb8fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:49.367585 7ffaabb8fa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:49.367586 7ffaabb8fa80 Options.max_open_files: -1
+2021/03/14-01:28:49.367587 7ffaabb8fa80 Options.bytes_per_sync: 0
+2021/03/14-01:28:49.367587 7ffaabb8fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:49.367588 7ffaabb8fa80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:49.367588 7ffaabb8fa80 Compression algorithms supported:
+2021/03/14-01:28:49.367589 7ffaabb8fa80 Snappy supported: 1
+2021/03/14-01:28:49.367590 7ffaabb8fa80 Zlib supported: 1
+2021/03/14-01:28:49.367590 7ffaabb8fa80 Bzip supported: 1
+2021/03/14-01:28:49.367591 7ffaabb8fa80 LZ4 supported: 1
+2021/03/14-01:28:49.367591 7ffaabb8fa80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:49.367595 7ffaabb8fa80 ZSTD supported: 1
+2021/03/14-01:28:49.367598 7ffaabb8fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:49.367600 7ffaabb8fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:49.367691 7ffaabb8fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:49.367744 7ffaabb8fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:49.367745 7ffaabb8fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:49.367746 7ffaabb8fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:49.367747 7ffaabb8fa80 Options.compaction_filter: None
+2021/03/14-01:28:49.367747 7ffaabb8fa80 Options.compaction_filter_factory: None
+2021/03/14-01:28:49.367748 7ffaabb8fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:49.367749 7ffaabb8fa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:49.367762 7ffaabb8fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2232520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2217c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:49.367763 7ffaabb8fa80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:49.367764 7ffaabb8fa80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:49.367765 7ffaabb8fa80 Options.compression[0]: NoCompression
+2021/03/14-01:28:49.367765 7ffaabb8fa80 Options.compression[1]: NoCompression
+2021/03/14-01:28:49.367766 7ffaabb8fa80 Options.compression[2]: Snappy
+2021/03/14-01:28:49.367767 7ffaabb8fa80 Options.compression[3]: Snappy
+2021/03/14-01:28:49.367767 7ffaabb8fa80 Options.compression[4]: Snappy
+2021/03/14-01:28:49.367768 7ffaabb8fa80 Options.compression[5]: Snappy
+2021/03/14-01:28:49.367768 7ffaabb8fa80 Options.compression[6]: Snappy
+2021/03/14-01:28:49.367769 7ffaabb8fa80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:49.367770 7ffaabb8fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:49.367770 7ffaabb8fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:49.367771 7ffaabb8fa80 Options.num_levels: 7
+2021/03/14-01:28:49.367771 7ffaabb8fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:49.367772 7ffaabb8fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:49.367773 7ffaabb8fa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:49.367773 7ffaabb8fa80 Options.compression_opts.level: -1
+2021/03/14-01:28:49.367774 7ffaabb8fa80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:49.367774 7ffaabb8fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:49.367775 7ffaabb8fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:49.367775 7ffaabb8fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:49.367776 7ffaabb8fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:49.367777 7ffaabb8fa80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:49.367777 7ffaabb8fa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:49.367778 7ffaabb8fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:49.367778 7ffaabb8fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:49.367779 7ffaabb8fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:49.367781 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:49.367788 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:49.367789 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:49.367790 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:49.367790 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:49.367791 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:49.367791 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:49.367792 7ffaabb8fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:49.367792 7ffaabb8fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:49.367793 7ffaabb8fa80 Options.arena_block_size: 16777216
+2021/03/14-01:28:49.367794 7ffaabb8fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:49.367794 7ffaabb8fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:49.367795 7ffaabb8fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:49.367795 7ffaabb8fa80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:49.367797 7ffaabb8fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:49.367798 7ffaabb8fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:49.367798 7ffaabb8fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:49.367799 7ffaabb8fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:49.367799 7ffaabb8fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:49.367800 7ffaabb8fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:49.367801 7ffaabb8fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:49.367802 7ffaabb8fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:49.367802 7ffaabb8fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:49.367803 7ffaabb8fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:49.367804 7ffaabb8fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:49.367804 7ffaabb8fa80 Options.table_properties_collectors:
+2021/03/14-01:28:49.367805 7ffaabb8fa80 Options.inplace_update_support: 0
+2021/03/14-01:28:49.367805 7ffaabb8fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:49.367806 7ffaabb8fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:49.367807 7ffaabb8fa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:49.367808 7ffaabb8fa80 Options.bloom_locality: 0
+2021/03/14-01:28:49.367808 7ffaabb8fa80 Options.max_successive_merges: 0
+2021/03/14-01:28:49.367809 7ffaabb8fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:49.367809 7ffaabb8fa80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:49.367810 7ffaabb8fa80 Options.force_consistency_checks: 0
+2021/03/14-01:28:49.367810 7ffaabb8fa80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:49.368178 7ffaabb8fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:49.368181 7ffaabb8fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:49.368320 7ffaabb8fa80 EVENT_LOG_v1 {"time_micros": 1615681729368309, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:49.368326 7ffaabb8fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:50.036330 7ffaabb8fa80 EVENT_LOG_v1 {"time_micros": 1615681730036326, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681730731837 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681730731837
new file mode 100644
index 0000000..eb222b5
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681730731837
@@ -0,0 +1,186 @@
+2021/03/14-01:28:50.049423 7ffaabb8fa80 RocksDB version: 5.11.3
+2021/03/14-01:28:50.049494 7ffaabb8fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:50.049496 7ffaabb8fa80 Compile date Mar 13 2021
+2021/03/14-01:28:50.049498 7ffaabb8fa80 DB SUMMARY
+2021/03/14-01:28:50.049618 7ffaabb8fa80 CURRENT file: CURRENT
+2021/03/14-01:28:50.049619 7ffaabb8fa80 IDENTITY file: IDENTITY
+2021/03/14-01:28:50.049630 7ffaabb8fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:50.049632 7ffaabb8fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:50.049632 7ffaabb8fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:50.049637 7ffaabb8fa80 Options.error_if_exists: 0
+2021/03/14-01:28:50.049638 7ffaabb8fa80 Options.create_if_missing: 1
+2021/03/14-01:28:50.049638 7ffaabb8fa80 Options.paranoid_checks: 1
+2021/03/14-01:28:50.049639 7ffaabb8fa80 Options.env: 0x7ffaac549080
+2021/03/14-01:28:50.049639 7ffaabb8fa80 Options.info_log: 0x223aca0
+2021/03/14-01:28:50.049640 7ffaabb8fa80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:50.049641 7ffaabb8fa80 Options.statistics: (nil)
+2021/03/14-01:28:50.049641 7ffaabb8fa80 Options.use_fsync: 0
+2021/03/14-01:28:50.049642 7ffaabb8fa80 Options.max_log_file_size: 0
+2021/03/14-01:28:50.049643 7ffaabb8fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:50.049643 7ffaabb8fa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:50.049644 7ffaabb8fa80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:50.049644 7ffaabb8fa80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:50.049645 7ffaabb8fa80 Options.allow_fallocate: 1
+2021/03/14-01:28:50.049646 7ffaabb8fa80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:50.049646 7ffaabb8fa80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:50.049647 7ffaabb8fa80 Options.use_direct_reads: 0
+2021/03/14-01:28:50.049647 7ffaabb8fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:50.049648 7ffaabb8fa80 Options.create_missing_column_families: 0
+2021/03/14-01:28:50.049648 7ffaabb8fa80 Options.db_log_dir:
+2021/03/14-01:28:50.049649 7ffaabb8fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:50.049650 7ffaabb8fa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:50.049650 7ffaabb8fa80 Options.max_subcompactions: 1
+2021/03/14-01:28:50.049651 7ffaabb8fa80 Options.max_background_flushes: -1
+2021/03/14-01:28:50.049651 7ffaabb8fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:50.049652 7ffaabb8fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:50.049652 7ffaabb8fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:50.049653 7ffaabb8fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:50.049654 7ffaabb8fa80 Options.advise_random_on_open: 1
+2021/03/14-01:28:50.049654 7ffaabb8fa80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:50.049655 7ffaabb8fa80 Options.write_buffer_manager: 0x2222b90
+2021/03/14-01:28:50.049655 7ffaabb8fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:50.049656 7ffaabb8fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:50.049656 7ffaabb8fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:50.049657 7ffaabb8fa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:50.049658 7ffaabb8fa80 Options.rate_limiter: (nil)
+2021/03/14-01:28:50.049659 7ffaabb8fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:50.049674 7ffaabb8fa80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:50.049675 7ffaabb8fa80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:50.049676 7ffaabb8fa80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:50.049676 7ffaabb8fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:50.049677 7ffaabb8fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:50.049678 7ffaabb8fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:50.049679 7ffaabb8fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:50.049680 7ffaabb8fa80 Options.row_cache: None
+2021/03/14-01:28:50.049680 7ffaabb8fa80 Options.wal_filter: None
+2021/03/14-01:28:50.049681 7ffaabb8fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:50.049682 7ffaabb8fa80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:50.049683 7ffaabb8fa80 Options.preserve_deletes: 0
+2021/03/14-01:28:50.049683 7ffaabb8fa80 Options.two_write_queues: 0
+2021/03/14-01:28:50.049684 7ffaabb8fa80 Options.manual_wal_flush: 0
+2021/03/14-01:28:50.049687 7ffaabb8fa80 Options.max_background_jobs: 16
+2021/03/14-01:28:50.049688 7ffaabb8fa80 Options.max_background_compactions: -1
+2021/03/14-01:28:50.049689 7ffaabb8fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:50.049690 7ffaabb8fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:50.049693 7ffaabb8fa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:50.049694 7ffaabb8fa80 Options.max_total_wal_size: 0
+2021/03/14-01:28:50.049695 7ffaabb8fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:50.049696 7ffaabb8fa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:50.049697 7ffaabb8fa80 Options.max_open_files: -1
+2021/03/14-01:28:50.049698 7ffaabb8fa80 Options.bytes_per_sync: 0
+2021/03/14-01:28:50.049698 7ffaabb8fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:50.049699 7ffaabb8fa80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:50.049699 7ffaabb8fa80 Compression algorithms supported:
+2021/03/14-01:28:50.049700 7ffaabb8fa80 Snappy supported: 1
+2021/03/14-01:28:50.049701 7ffaabb8fa80 Zlib supported: 1
+2021/03/14-01:28:50.049701 7ffaabb8fa80 Bzip supported: 1
+2021/03/14-01:28:50.049702 7ffaabb8fa80 LZ4 supported: 1
+2021/03/14-01:28:50.049702 7ffaabb8fa80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:50.049707 7ffaabb8fa80 ZSTD supported: 1
+2021/03/14-01:28:50.049710 7ffaabb8fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:50.049711 7ffaabb8fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:50.049819 7ffaabb8fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:50.049874 7ffaabb8fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:50.049876 7ffaabb8fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:50.049877 7ffaabb8fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:50.049878 7ffaabb8fa80 Options.compaction_filter: None
+2021/03/14-01:28:50.049878 7ffaabb8fa80 Options.compaction_filter_factory: None
+2021/03/14-01:28:50.049879 7ffaabb8fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:50.049880 7ffaabb8fa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:50.049893 7ffaabb8fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2232520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2217c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:50.049894 7ffaabb8fa80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:50.049895 7ffaabb8fa80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:50.049896 7ffaabb8fa80 Options.compression[0]: NoCompression
+2021/03/14-01:28:50.049897 7ffaabb8fa80 Options.compression[1]: NoCompression
+2021/03/14-01:28:50.049898 7ffaabb8fa80 Options.compression[2]: Snappy
+2021/03/14-01:28:50.049899 7ffaabb8fa80 Options.compression[3]: Snappy
+2021/03/14-01:28:50.049900 7ffaabb8fa80 Options.compression[4]: Snappy
+2021/03/14-01:28:50.049901 7ffaabb8fa80 Options.compression[5]: Snappy
+2021/03/14-01:28:50.049902 7ffaabb8fa80 Options.compression[6]: Snappy
+2021/03/14-01:28:50.049903 7ffaabb8fa80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:50.049904 7ffaabb8fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:50.049904 7ffaabb8fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:50.049905 7ffaabb8fa80 Options.num_levels: 7
+2021/03/14-01:28:50.049906 7ffaabb8fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:50.049907 7ffaabb8fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:50.049907 7ffaabb8fa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:50.049908 7ffaabb8fa80 Options.compression_opts.level: -1
+2021/03/14-01:28:50.049909 7ffaabb8fa80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:50.049910 7ffaabb8fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:50.049912 7ffaabb8fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:50.049913 7ffaabb8fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:50.049914 7ffaabb8fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:50.049914 7ffaabb8fa80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:50.049915 7ffaabb8fa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:50.049916 7ffaabb8fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:50.049920 7ffaabb8fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:50.049921 7ffaabb8fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:50.049923 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:50.049932 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:50.049932 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:50.049933 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:50.049934 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:50.049934 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:50.049935 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:50.049935 7ffaabb8fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:50.049936 7ffaabb8fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:50.049936 7ffaabb8fa80 Options.arena_block_size: 16777216
+2021/03/14-01:28:50.049937 7ffaabb8fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:50.049938 7ffaabb8fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:50.049938 7ffaabb8fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:50.049939 7ffaabb8fa80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:50.049940 7ffaabb8fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:50.049941 7ffaabb8fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:50.049942 7ffaabb8fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:50.049942 7ffaabb8fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:50.049943 7ffaabb8fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:50.049943 7ffaabb8fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:50.049944 7ffaabb8fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:50.049945 7ffaabb8fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:50.049946 7ffaabb8fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:50.049946 7ffaabb8fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:50.049947 7ffaabb8fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:50.049948 7ffaabb8fa80 Options.table_properties_collectors:
+2021/03/14-01:28:50.049948 7ffaabb8fa80 Options.inplace_update_support: 0
+2021/03/14-01:28:50.049949 7ffaabb8fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:50.049949 7ffaabb8fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:50.049950 7ffaabb8fa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:50.049951 7ffaabb8fa80 Options.bloom_locality: 0
+2021/03/14-01:28:50.049951 7ffaabb8fa80 Options.max_successive_merges: 0
+2021/03/14-01:28:50.049952 7ffaabb8fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:50.049952 7ffaabb8fa80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:50.049953 7ffaabb8fa80 Options.force_consistency_checks: 0
+2021/03/14-01:28:50.049953 7ffaabb8fa80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:50.050395 7ffaabb8fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:50.050398 7ffaabb8fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:50.050542 7ffaabb8fa80 EVENT_LOG_v1 {"time_micros": 1615681730050532, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:50.050547 7ffaabb8fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:50.719290 7ffaabb8fa80 EVENT_LOG_v1 {"time_micros": 1615681730719287, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681823431210 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681823431210
new file mode 100644
index 0000000..575bbe4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681823431210
@@ -0,0 +1,186 @@
+2021/03/14-01:28:50.732205 7ffaabb8fa80 RocksDB version: 5.11.3
+2021/03/14-01:28:50.732270 7ffaabb8fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:28:50.732272 7ffaabb8fa80 Compile date Mar 13 2021
+2021/03/14-01:28:50.732274 7ffaabb8fa80 DB SUMMARY
+2021/03/14-01:28:50.732398 7ffaabb8fa80 CURRENT file: CURRENT
+2021/03/14-01:28:50.732399 7ffaabb8fa80 IDENTITY file: IDENTITY
+2021/03/14-01:28:50.732410 7ffaabb8fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:28:50.732411 7ffaabb8fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:28:50.732412 7ffaabb8fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:28:50.732417 7ffaabb8fa80 Options.error_if_exists: 0
+2021/03/14-01:28:50.732417 7ffaabb8fa80 Options.create_if_missing: 1
+2021/03/14-01:28:50.732418 7ffaabb8fa80 Options.paranoid_checks: 1
+2021/03/14-01:28:50.732419 7ffaabb8fa80 Options.env: 0x7ffaac549080
+2021/03/14-01:28:50.732419 7ffaabb8fa80 Options.info_log: 0x223aca0
+2021/03/14-01:28:50.732420 7ffaabb8fa80 Options.max_file_opening_threads: 16
+2021/03/14-01:28:50.732420 7ffaabb8fa80 Options.statistics: (nil)
+2021/03/14-01:28:50.732421 7ffaabb8fa80 Options.use_fsync: 0
+2021/03/14-01:28:50.732422 7ffaabb8fa80 Options.max_log_file_size: 0
+2021/03/14-01:28:50.732422 7ffaabb8fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:28:50.732423 7ffaabb8fa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:28:50.732424 7ffaabb8fa80 Options.keep_log_file_num: 1000
+2021/03/14-01:28:50.732424 7ffaabb8fa80 Options.recycle_log_file_num: 0
+2021/03/14-01:28:50.732425 7ffaabb8fa80 Options.allow_fallocate: 1
+2021/03/14-01:28:50.732425 7ffaabb8fa80 Options.allow_mmap_reads: 0
+2021/03/14-01:28:50.732426 7ffaabb8fa80 Options.allow_mmap_writes: 0
+2021/03/14-01:28:50.732426 7ffaabb8fa80 Options.use_direct_reads: 0
+2021/03/14-01:28:50.732427 7ffaabb8fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:28:50.732428 7ffaabb8fa80 Options.create_missing_column_families: 0
+2021/03/14-01:28:50.732428 7ffaabb8fa80 Options.db_log_dir:
+2021/03/14-01:28:50.732429 7ffaabb8fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:28:50.732429 7ffaabb8fa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:28:50.732430 7ffaabb8fa80 Options.max_subcompactions: 1
+2021/03/14-01:28:50.732430 7ffaabb8fa80 Options.max_background_flushes: -1
+2021/03/14-01:28:50.732431 7ffaabb8fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:28:50.732432 7ffaabb8fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:28:50.732432 7ffaabb8fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:28:50.732433 7ffaabb8fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:28:50.732433 7ffaabb8fa80 Options.advise_random_on_open: 1
+2021/03/14-01:28:50.732434 7ffaabb8fa80 Options.db_write_buffer_size: 0
+2021/03/14-01:28:50.732435 7ffaabb8fa80 Options.write_buffer_manager: 0x2222b90
+2021/03/14-01:28:50.732435 7ffaabb8fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:28:50.732436 7ffaabb8fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:28:50.732436 7ffaabb8fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:28:50.732437 7ffaabb8fa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:28:50.732437 7ffaabb8fa80 Options.rate_limiter: (nil)
+2021/03/14-01:28:50.732439 7ffaabb8fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:28:50.732446 7ffaabb8fa80 Options.wal_recovery_mode: 2
+2021/03/14-01:28:50.732447 7ffaabb8fa80 Options.enable_thread_tracking: 0
+2021/03/14-01:28:50.732447 7ffaabb8fa80 Options.enable_pipelined_write: 0
+2021/03/14-01:28:50.732448 7ffaabb8fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:28:50.732449 7ffaabb8fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:28:50.732449 7ffaabb8fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:28:50.732450 7ffaabb8fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:28:50.732450 7ffaabb8fa80 Options.row_cache: None
+2021/03/14-01:28:50.732451 7ffaabb8fa80 Options.wal_filter: None
+2021/03/14-01:28:50.732452 7ffaabb8fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:28:50.732452 7ffaabb8fa80 Options.allow_ingest_behind: 0
+2021/03/14-01:28:50.732453 7ffaabb8fa80 Options.preserve_deletes: 0
+2021/03/14-01:28:50.732453 7ffaabb8fa80 Options.two_write_queues: 0
+2021/03/14-01:28:50.732454 7ffaabb8fa80 Options.manual_wal_flush: 0
+2021/03/14-01:28:50.732455 7ffaabb8fa80 Options.max_background_jobs: 16
+2021/03/14-01:28:50.732456 7ffaabb8fa80 Options.max_background_compactions: -1
+2021/03/14-01:28:50.732456 7ffaabb8fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:28:50.732457 7ffaabb8fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:28:50.732457 7ffaabb8fa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:28:50.732458 7ffaabb8fa80 Options.max_total_wal_size: 0
+2021/03/14-01:28:50.732458 7ffaabb8fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:28:50.732459 7ffaabb8fa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:28:50.732460 7ffaabb8fa80 Options.max_open_files: -1
+2021/03/14-01:28:50.732460 7ffaabb8fa80 Options.bytes_per_sync: 0
+2021/03/14-01:28:50.732461 7ffaabb8fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:28:50.732461 7ffaabb8fa80 Options.compaction_readahead_size: 0
+2021/03/14-01:28:50.732462 7ffaabb8fa80 Compression algorithms supported:
+2021/03/14-01:28:50.732462 7ffaabb8fa80 Snappy supported: 1
+2021/03/14-01:28:50.732463 7ffaabb8fa80 Zlib supported: 1
+2021/03/14-01:28:50.732464 7ffaabb8fa80 Bzip supported: 1
+2021/03/14-01:28:50.732464 7ffaabb8fa80 LZ4 supported: 1
+2021/03/14-01:28:50.732465 7ffaabb8fa80 ZSTDNotFinal supported: 1
+2021/03/14-01:28:50.732469 7ffaabb8fa80 ZSTD supported: 1
+2021/03/14-01:28:50.732472 7ffaabb8fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:28:50.732473 7ffaabb8fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:28:50.732564 7ffaabb8fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:28:50.732616 7ffaabb8fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:28:50.732618 7ffaabb8fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:28:50.732619 7ffaabb8fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:28:50.732620 7ffaabb8fa80 Options.compaction_filter: None
+2021/03/14-01:28:50.732620 7ffaabb8fa80 Options.compaction_filter_factory: None
+2021/03/14-01:28:50.732621 7ffaabb8fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:28:50.732622 7ffaabb8fa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:28:50.732636 7ffaabb8fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2232520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2217c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:28:50.732637 7ffaabb8fa80 Options.write_buffer_size: 134217728
+2021/03/14-01:28:50.732637 7ffaabb8fa80 Options.max_write_buffer_number: 6
+2021/03/14-01:28:50.732638 7ffaabb8fa80 Options.compression[0]: NoCompression
+2021/03/14-01:28:50.732639 7ffaabb8fa80 Options.compression[1]: NoCompression
+2021/03/14-01:28:50.732639 7ffaabb8fa80 Options.compression[2]: Snappy
+2021/03/14-01:28:50.732640 7ffaabb8fa80 Options.compression[3]: Snappy
+2021/03/14-01:28:50.732640 7ffaabb8fa80 Options.compression[4]: Snappy
+2021/03/14-01:28:50.732641 7ffaabb8fa80 Options.compression[5]: Snappy
+2021/03/14-01:28:50.732642 7ffaabb8fa80 Options.compression[6]: Snappy
+2021/03/14-01:28:50.732642 7ffaabb8fa80 Options.bottommost_compression: Disabled
+2021/03/14-01:28:50.732643 7ffaabb8fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:28:50.732644 7ffaabb8fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:28:50.732644 7ffaabb8fa80 Options.num_levels: 7
+2021/03/14-01:28:50.732645 7ffaabb8fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:28:50.732645 7ffaabb8fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:28:50.732646 7ffaabb8fa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:28:50.732647 7ffaabb8fa80 Options.compression_opts.level: -1
+2021/03/14-01:28:50.732647 7ffaabb8fa80 Options.compression_opts.strategy: 0
+2021/03/14-01:28:50.732648 7ffaabb8fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:28:50.732648 7ffaabb8fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:28:50.732649 7ffaabb8fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:28:50.732649 7ffaabb8fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:28:50.732650 7ffaabb8fa80 Options.target_file_size_base: 67108864
+2021/03/14-01:28:50.732651 7ffaabb8fa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:28:50.732651 7ffaabb8fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:28:50.732652 7ffaabb8fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:28:50.732652 7ffaabb8fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:28:50.732654 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:28:50.732662 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:28:50.732662 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:28:50.732663 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:28:50.732664 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:28:50.732664 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:28:50.732665 7ffaabb8fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:28:50.732665 7ffaabb8fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:28:50.732666 7ffaabb8fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:28:50.732666 7ffaabb8fa80 Options.arena_block_size: 16777216
+2021/03/14-01:28:50.732667 7ffaabb8fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:28:50.732668 7ffaabb8fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:28:50.732668 7ffaabb8fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:28:50.732669 7ffaabb8fa80 Options.disable_auto_compactions: 0
+2021/03/14-01:28:50.732671 7ffaabb8fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:28:50.732671 7ffaabb8fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:28:50.732672 7ffaabb8fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:28:50.732672 7ffaabb8fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:28:50.732673 7ffaabb8fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:28:50.732674 7ffaabb8fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:28:50.732674 7ffaabb8fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:28:50.732675 7ffaabb8fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:28:50.732676 7ffaabb8fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:28:50.732677 7ffaabb8fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:28:50.732677 7ffaabb8fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:28:50.732678 7ffaabb8fa80 Options.table_properties_collectors:
+2021/03/14-01:28:50.732678 7ffaabb8fa80 Options.inplace_update_support: 0
+2021/03/14-01:28:50.732679 7ffaabb8fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:28:50.732680 7ffaabb8fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:28:50.732681 7ffaabb8fa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:28:50.732681 7ffaabb8fa80 Options.bloom_locality: 0
+2021/03/14-01:28:50.732682 7ffaabb8fa80 Options.max_successive_merges: 0
+2021/03/14-01:28:50.732682 7ffaabb8fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:28:50.732683 7ffaabb8fa80 Options.paranoid_file_checks: 0
+2021/03/14-01:28:50.732684 7ffaabb8fa80 Options.force_consistency_checks: 0
+2021/03/14-01:28:50.732684 7ffaabb8fa80 Options.report_bg_io_stats: 0
+2021/03/14-01:28:50.733078 7ffaabb8fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:28:50.733081 7ffaabb8fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:28:50.733212 7ffaabb8fa80 EVENT_LOG_v1 {"time_micros": 1615681730733202, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:28:50.733217 7ffaabb8fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:28:51.410565 7ffaabb8fa80 EVENT_LOG_v1 {"time_micros": 1615681731410561, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681824130414 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681824130414
new file mode 100644
index 0000000..84de705
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681824130414
@@ -0,0 +1,186 @@
+2021/03/14-01:30:23.431753 7f0a8e794a80 RocksDB version: 5.11.3
+2021/03/14-01:30:23.431833 7f0a8e794a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:30:23.431835 7f0a8e794a80 Compile date Mar 13 2021
+2021/03/14-01:30:23.431842 7f0a8e794a80 DB SUMMARY
+2021/03/14-01:30:23.432024 7f0a8e794a80 CURRENT file: CURRENT
+2021/03/14-01:30:23.432025 7f0a8e794a80 IDENTITY file: IDENTITY
+2021/03/14-01:30:23.432039 7f0a8e794a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:30:23.432041 7f0a8e794a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:30:23.432042 7f0a8e794a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:30:23.432047 7f0a8e794a80 Options.error_if_exists: 0
+2021/03/14-01:30:23.432048 7f0a8e794a80 Options.create_if_missing: 1
+2021/03/14-01:30:23.432049 7f0a8e794a80 Options.paranoid_checks: 1
+2021/03/14-01:30:23.432049 7f0a8e794a80 Options.env: 0x7f0a8f14e080
+2021/03/14-01:30:23.432050 7f0a8e794a80 Options.info_log: 0x24a4ca0
+2021/03/14-01:30:23.432051 7f0a8e794a80 Options.max_file_opening_threads: 16
+2021/03/14-01:30:23.432052 7f0a8e794a80 Options.statistics: (nil)
+2021/03/14-01:30:23.432052 7f0a8e794a80 Options.use_fsync: 0
+2021/03/14-01:30:23.432053 7f0a8e794a80 Options.max_log_file_size: 0
+2021/03/14-01:30:23.432054 7f0a8e794a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:30:23.432055 7f0a8e794a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:30:23.432055 7f0a8e794a80 Options.keep_log_file_num: 1000
+2021/03/14-01:30:23.432056 7f0a8e794a80 Options.recycle_log_file_num: 0
+2021/03/14-01:30:23.432057 7f0a8e794a80 Options.allow_fallocate: 1
+2021/03/14-01:30:23.432057 7f0a8e794a80 Options.allow_mmap_reads: 0
+2021/03/14-01:30:23.432058 7f0a8e794a80 Options.allow_mmap_writes: 0
+2021/03/14-01:30:23.432059 7f0a8e794a80 Options.use_direct_reads: 0
+2021/03/14-01:30:23.432059 7f0a8e794a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:30:23.432060 7f0a8e794a80 Options.create_missing_column_families: 0
+2021/03/14-01:30:23.432060 7f0a8e794a80 Options.db_log_dir:
+2021/03/14-01:30:23.432061 7f0a8e794a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:30:23.432062 7f0a8e794a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:30:23.432063 7f0a8e794a80 Options.max_subcompactions: 1
+2021/03/14-01:30:23.432063 7f0a8e794a80 Options.max_background_flushes: -1
+2021/03/14-01:30:23.432064 7f0a8e794a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:30:23.432065 7f0a8e794a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:30:23.432065 7f0a8e794a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:30:23.432066 7f0a8e794a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:30:23.432067 7f0a8e794a80 Options.advise_random_on_open: 1
+2021/03/14-01:30:23.432067 7f0a8e794a80 Options.db_write_buffer_size: 0
+2021/03/14-01:30:23.432068 7f0a8e794a80 Options.write_buffer_manager: 0x248cb90
+2021/03/14-01:30:23.432069 7f0a8e794a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:30:23.432069 7f0a8e794a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:30:23.432070 7f0a8e794a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:30:23.432071 7f0a8e794a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:30:23.432071 7f0a8e794a80 Options.rate_limiter: (nil)
+2021/03/14-01:30:23.432073 7f0a8e794a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:30:23.432084 7f0a8e794a80 Options.wal_recovery_mode: 2
+2021/03/14-01:30:23.432085 7f0a8e794a80 Options.enable_thread_tracking: 0
+2021/03/14-01:30:23.432086 7f0a8e794a80 Options.enable_pipelined_write: 0
+2021/03/14-01:30:23.432086 7f0a8e794a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:30:23.432087 7f0a8e794a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:30:23.432088 7f0a8e794a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:30:23.432088 7f0a8e794a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:30:23.432089 7f0a8e794a80 Options.row_cache: None
+2021/03/14-01:30:23.432090 7f0a8e794a80 Options.wal_filter: None
+2021/03/14-01:30:23.432090 7f0a8e794a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:30:23.432091 7f0a8e794a80 Options.allow_ingest_behind: 0
+2021/03/14-01:30:23.432092 7f0a8e794a80 Options.preserve_deletes: 0
+2021/03/14-01:30:23.432092 7f0a8e794a80 Options.two_write_queues: 0
+2021/03/14-01:30:23.432093 7f0a8e794a80 Options.manual_wal_flush: 0
+2021/03/14-01:30:23.432095 7f0a8e794a80 Options.max_background_jobs: 16
+2021/03/14-01:30:23.432095 7f0a8e794a80 Options.max_background_compactions: -1
+2021/03/14-01:30:23.432096 7f0a8e794a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:30:23.432096 7f0a8e794a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:30:23.432097 7f0a8e794a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:30:23.432098 7f0a8e794a80 Options.max_total_wal_size: 0
+2021/03/14-01:30:23.432099 7f0a8e794a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:30:23.432099 7f0a8e794a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:30:23.432100 7f0a8e794a80 Options.max_open_files: -1
+2021/03/14-01:30:23.432101 7f0a8e794a80 Options.bytes_per_sync: 0
+2021/03/14-01:30:23.432101 7f0a8e794a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:30:23.432102 7f0a8e794a80 Options.compaction_readahead_size: 0
+2021/03/14-01:30:23.432103 7f0a8e794a80 Compression algorithms supported:
+2021/03/14-01:30:23.432103 7f0a8e794a80 Snappy supported: 1
+2021/03/14-01:30:23.432104 7f0a8e794a80 Zlib supported: 1
+2021/03/14-01:30:23.432105 7f0a8e794a80 Bzip supported: 1
+2021/03/14-01:30:23.432105 7f0a8e794a80 LZ4 supported: 1
+2021/03/14-01:30:23.432106 7f0a8e794a80 ZSTDNotFinal supported: 1
+2021/03/14-01:30:23.432112 7f0a8e794a80 ZSTD supported: 1
+2021/03/14-01:30:23.432116 7f0a8e794a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:30:23.432118 7f0a8e794a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:30:23.432271 7f0a8e794a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:30:23.432345 7f0a8e794a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:30:23.432347 7f0a8e794a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:30:23.432348 7f0a8e794a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:30:23.432349 7f0a8e794a80 Options.compaction_filter: None
+2021/03/14-01:30:23.432350 7f0a8e794a80 Options.compaction_filter_factory: None
+2021/03/14-01:30:23.432351 7f0a8e794a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:30:23.432352 7f0a8e794a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:30:23.432371 7f0a8e794a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x249c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2481c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:30:23.432372 7f0a8e794a80 Options.write_buffer_size: 134217728
+2021/03/14-01:30:23.432373 7f0a8e794a80 Options.max_write_buffer_number: 6
+2021/03/14-01:30:23.432374 7f0a8e794a80 Options.compression[0]: NoCompression
+2021/03/14-01:30:23.432375 7f0a8e794a80 Options.compression[1]: NoCompression
+2021/03/14-01:30:23.432376 7f0a8e794a80 Options.compression[2]: Snappy
+2021/03/14-01:30:23.432376 7f0a8e794a80 Options.compression[3]: Snappy
+2021/03/14-01:30:23.432377 7f0a8e794a80 Options.compression[4]: Snappy
+2021/03/14-01:30:23.432378 7f0a8e794a80 Options.compression[5]: Snappy
+2021/03/14-01:30:23.432378 7f0a8e794a80 Options.compression[6]: Snappy
+2021/03/14-01:30:23.432379 7f0a8e794a80 Options.bottommost_compression: Disabled
+2021/03/14-01:30:23.432380 7f0a8e794a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:30:23.432381 7f0a8e794a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:30:23.432382 7f0a8e794a80 Options.num_levels: 7
+2021/03/14-01:30:23.432382 7f0a8e794a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:30:23.432383 7f0a8e794a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:30:23.432384 7f0a8e794a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:30:23.432384 7f0a8e794a80 Options.compression_opts.level: -1
+2021/03/14-01:30:23.432385 7f0a8e794a80 Options.compression_opts.strategy: 0
+2021/03/14-01:30:23.432386 7f0a8e794a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:30:23.432386 7f0a8e794a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:30:23.432387 7f0a8e794a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:30:23.432388 7f0a8e794a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:30:23.432388 7f0a8e794a80 Options.target_file_size_base: 67108864
+2021/03/14-01:30:23.432389 7f0a8e794a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:30:23.432390 7f0a8e794a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:30:23.432390 7f0a8e794a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:30:23.432391 7f0a8e794a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:30:23.432393 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:30:23.432404 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:30:23.432405 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:30:23.432405 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:30:23.432406 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:30:23.432406 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:30:23.432407 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:30:23.432408 7f0a8e794a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:30:23.432408 7f0a8e794a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:30:23.432409 7f0a8e794a80 Options.arena_block_size: 16777216
+2021/03/14-01:30:23.432410 7f0a8e794a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:30:23.432411 7f0a8e794a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:30:23.432411 7f0a8e794a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:30:23.432412 7f0a8e794a80 Options.disable_auto_compactions: 0
+2021/03/14-01:30:23.432414 7f0a8e794a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:30:23.432415 7f0a8e794a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:30:23.432415 7f0a8e794a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:30:23.432416 7f0a8e794a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:30:23.432417 7f0a8e794a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:30:23.432417 7f0a8e794a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:30:23.432418 7f0a8e794a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:30:23.432419 7f0a8e794a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:30:23.432420 7f0a8e794a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:30:23.432421 7f0a8e794a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:30:23.432422 7f0a8e794a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:30:23.432422 7f0a8e794a80 Options.table_properties_collectors:
+2021/03/14-01:30:23.432423 7f0a8e794a80 Options.inplace_update_support: 0
+2021/03/14-01:30:23.432424 7f0a8e794a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:30:23.432424 7f0a8e794a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:30:23.432426 7f0a8e794a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:30:23.432426 7f0a8e794a80 Options.bloom_locality: 0
+2021/03/14-01:30:23.432427 7f0a8e794a80 Options.max_successive_merges: 0
+2021/03/14-01:30:23.432428 7f0a8e794a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:30:23.432428 7f0a8e794a80 Options.paranoid_file_checks: 0
+2021/03/14-01:30:23.432429 7f0a8e794a80 Options.force_consistency_checks: 0
+2021/03/14-01:30:23.432430 7f0a8e794a80 Options.report_bg_io_stats: 0
+2021/03/14-01:30:23.432956 7f0a8e794a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:30:23.432959 7f0a8e794a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:30:23.433127 7f0a8e794a80 EVENT_LOG_v1 {"time_micros": 1615681823433112, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:30:23.433135 7f0a8e794a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:30:24.118425 7f0a8e794a80 EVENT_LOG_v1 {"time_micros": 1615681824118422, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681824811432 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681824811432
new file mode 100644
index 0000000..e9792b9
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681824811432
@@ -0,0 +1,186 @@
+2021/03/14-01:30:24.130794 7f0a8e794a80 RocksDB version: 5.11.3
+2021/03/14-01:30:24.130851 7f0a8e794a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:30:24.130853 7f0a8e794a80 Compile date Mar 13 2021
+2021/03/14-01:30:24.130857 7f0a8e794a80 DB SUMMARY
+2021/03/14-01:30:24.130978 7f0a8e794a80 CURRENT file: CURRENT
+2021/03/14-01:30:24.130979 7f0a8e794a80 IDENTITY file: IDENTITY
+2021/03/14-01:30:24.130991 7f0a8e794a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:30:24.130992 7f0a8e794a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:30:24.130993 7f0a8e794a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:30:24.130997 7f0a8e794a80 Options.error_if_exists: 0
+2021/03/14-01:30:24.130998 7f0a8e794a80 Options.create_if_missing: 1
+2021/03/14-01:30:24.130998 7f0a8e794a80 Options.paranoid_checks: 1
+2021/03/14-01:30:24.130999 7f0a8e794a80 Options.env: 0x7f0a8f14e080
+2021/03/14-01:30:24.131000 7f0a8e794a80 Options.info_log: 0x24a4ca0
+2021/03/14-01:30:24.131000 7f0a8e794a80 Options.max_file_opening_threads: 16
+2021/03/14-01:30:24.131001 7f0a8e794a80 Options.statistics: (nil)
+2021/03/14-01:30:24.131001 7f0a8e794a80 Options.use_fsync: 0
+2021/03/14-01:30:24.131002 7f0a8e794a80 Options.max_log_file_size: 0
+2021/03/14-01:30:24.131003 7f0a8e794a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:30:24.131003 7f0a8e794a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:30:24.131004 7f0a8e794a80 Options.keep_log_file_num: 1000
+2021/03/14-01:30:24.131004 7f0a8e794a80 Options.recycle_log_file_num: 0
+2021/03/14-01:30:24.131005 7f0a8e794a80 Options.allow_fallocate: 1
+2021/03/14-01:30:24.131006 7f0a8e794a80 Options.allow_mmap_reads: 0
+2021/03/14-01:30:24.131006 7f0a8e794a80 Options.allow_mmap_writes: 0
+2021/03/14-01:30:24.131007 7f0a8e794a80 Options.use_direct_reads: 0
+2021/03/14-01:30:24.131007 7f0a8e794a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:30:24.131008 7f0a8e794a80 Options.create_missing_column_families: 0
+2021/03/14-01:30:24.131008 7f0a8e794a80 Options.db_log_dir:
+2021/03/14-01:30:24.131009 7f0a8e794a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:30:24.131009 7f0a8e794a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:30:24.131010 7f0a8e794a80 Options.max_subcompactions: 1
+2021/03/14-01:30:24.131011 7f0a8e794a80 Options.max_background_flushes: -1
+2021/03/14-01:30:24.131011 7f0a8e794a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:30:24.131012 7f0a8e794a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:30:24.131012 7f0a8e794a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:30:24.131013 7f0a8e794a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:30:24.131013 7f0a8e794a80 Options.advise_random_on_open: 1
+2021/03/14-01:30:24.131014 7f0a8e794a80 Options.db_write_buffer_size: 0
+2021/03/14-01:30:24.131015 7f0a8e794a80 Options.write_buffer_manager: 0x248cb90
+2021/03/14-01:30:24.131015 7f0a8e794a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:30:24.131016 7f0a8e794a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:30:24.131016 7f0a8e794a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:30:24.131017 7f0a8e794a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:30:24.131017 7f0a8e794a80 Options.rate_limiter: (nil)
+2021/03/14-01:30:24.131019 7f0a8e794a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:30:24.131027 7f0a8e794a80 Options.wal_recovery_mode: 2
+2021/03/14-01:30:24.131027 7f0a8e794a80 Options.enable_thread_tracking: 0
+2021/03/14-01:30:24.131028 7f0a8e794a80 Options.enable_pipelined_write: 0
+2021/03/14-01:30:24.131028 7f0a8e794a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:30:24.131029 7f0a8e794a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:30:24.131029 7f0a8e794a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:30:24.131030 7f0a8e794a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:30:24.131031 7f0a8e794a80 Options.row_cache: None
+2021/03/14-01:30:24.131031 7f0a8e794a80 Options.wal_filter: None
+2021/03/14-01:30:24.131032 7f0a8e794a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:30:24.131032 7f0a8e794a80 Options.allow_ingest_behind: 0
+2021/03/14-01:30:24.131033 7f0a8e794a80 Options.preserve_deletes: 0
+2021/03/14-01:30:24.131033 7f0a8e794a80 Options.two_write_queues: 0
+2021/03/14-01:30:24.131034 7f0a8e794a80 Options.manual_wal_flush: 0
+2021/03/14-01:30:24.131035 7f0a8e794a80 Options.max_background_jobs: 16
+2021/03/14-01:30:24.131036 7f0a8e794a80 Options.max_background_compactions: -1
+2021/03/14-01:30:24.131036 7f0a8e794a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:30:24.131037 7f0a8e794a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:30:24.131037 7f0a8e794a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:30:24.131038 7f0a8e794a80 Options.max_total_wal_size: 0
+2021/03/14-01:30:24.131039 7f0a8e794a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:30:24.131039 7f0a8e794a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:30:24.131040 7f0a8e794a80 Options.max_open_files: -1
+2021/03/14-01:30:24.131040 7f0a8e794a80 Options.bytes_per_sync: 0
+2021/03/14-01:30:24.131041 7f0a8e794a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:30:24.131041 7f0a8e794a80 Options.compaction_readahead_size: 0
+2021/03/14-01:30:24.131042 7f0a8e794a80 Compression algorithms supported:
+2021/03/14-01:30:24.131043 7f0a8e794a80 Snappy supported: 1
+2021/03/14-01:30:24.131043 7f0a8e794a80 Zlib supported: 1
+2021/03/14-01:30:24.131044 7f0a8e794a80 Bzip supported: 1
+2021/03/14-01:30:24.131044 7f0a8e794a80 LZ4 supported: 1
+2021/03/14-01:30:24.131045 7f0a8e794a80 ZSTDNotFinal supported: 1
+2021/03/14-01:30:24.131049 7f0a8e794a80 ZSTD supported: 1
+2021/03/14-01:30:24.131052 7f0a8e794a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:30:24.131053 7f0a8e794a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:30:24.131139 7f0a8e794a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:30:24.131193 7f0a8e794a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:30:24.131195 7f0a8e794a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:30:24.131196 7f0a8e794a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:30:24.131196 7f0a8e794a80 Options.compaction_filter: None
+2021/03/14-01:30:24.131197 7f0a8e794a80 Options.compaction_filter_factory: None
+2021/03/14-01:30:24.131197 7f0a8e794a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:30:24.131198 7f0a8e794a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:30:24.131214 7f0a8e794a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x249c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2481c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:30:24.131215 7f0a8e794a80 Options.write_buffer_size: 134217728
+2021/03/14-01:30:24.131215 7f0a8e794a80 Options.max_write_buffer_number: 6
+2021/03/14-01:30:24.131216 7f0a8e794a80 Options.compression[0]: NoCompression
+2021/03/14-01:30:24.131217 7f0a8e794a80 Options.compression[1]: NoCompression
+2021/03/14-01:30:24.131217 7f0a8e794a80 Options.compression[2]: Snappy
+2021/03/14-01:30:24.131218 7f0a8e794a80 Options.compression[3]: Snappy
+2021/03/14-01:30:24.131219 7f0a8e794a80 Options.compression[4]: Snappy
+2021/03/14-01:30:24.131219 7f0a8e794a80 Options.compression[5]: Snappy
+2021/03/14-01:30:24.131220 7f0a8e794a80 Options.compression[6]: Snappy
+2021/03/14-01:30:24.131220 7f0a8e794a80 Options.bottommost_compression: Disabled
+2021/03/14-01:30:24.131221 7f0a8e794a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:30:24.131222 7f0a8e794a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:30:24.131222 7f0a8e794a80 Options.num_levels: 7
+2021/03/14-01:30:24.131223 7f0a8e794a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:30:24.131223 7f0a8e794a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:30:24.131224 7f0a8e794a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:30:24.131224 7f0a8e794a80 Options.compression_opts.level: -1
+2021/03/14-01:30:24.131225 7f0a8e794a80 Options.compression_opts.strategy: 0
+2021/03/14-01:30:24.131226 7f0a8e794a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:30:24.131226 7f0a8e794a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:30:24.131227 7f0a8e794a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:30:24.131227 7f0a8e794a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:30:24.131228 7f0a8e794a80 Options.target_file_size_base: 67108864
+2021/03/14-01:30:24.131228 7f0a8e794a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:30:24.131229 7f0a8e794a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:30:24.131230 7f0a8e794a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:30:24.131230 7f0a8e794a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:30:24.131232 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:30:24.131245 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:30:24.131246 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:30:24.131247 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:30:24.131248 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:30:24.131248 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:30:24.131249 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:30:24.131249 7f0a8e794a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:30:24.131250 7f0a8e794a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:30:24.131251 7f0a8e794a80 Options.arena_block_size: 16777216
+2021/03/14-01:30:24.131251 7f0a8e794a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:30:24.131252 7f0a8e794a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:30:24.131252 7f0a8e794a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:30:24.131253 7f0a8e794a80 Options.disable_auto_compactions: 0
+2021/03/14-01:30:24.131255 7f0a8e794a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:30:24.131255 7f0a8e794a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:30:24.131256 7f0a8e794a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:30:24.131257 7f0a8e794a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:30:24.131257 7f0a8e794a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:30:24.131258 7f0a8e794a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:30:24.131258 7f0a8e794a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:30:24.131259 7f0a8e794a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:30:24.131260 7f0a8e794a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:30:24.131261 7f0a8e794a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:30:24.131261 7f0a8e794a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:30:24.131262 7f0a8e794a80 Options.table_properties_collectors:
+2021/03/14-01:30:24.131262 7f0a8e794a80 Options.inplace_update_support: 0
+2021/03/14-01:30:24.131263 7f0a8e794a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:30:24.131263 7f0a8e794a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:30:24.131264 7f0a8e794a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:30:24.131265 7f0a8e794a80 Options.bloom_locality: 0
+2021/03/14-01:30:24.131265 7f0a8e794a80 Options.max_successive_merges: 0
+2021/03/14-01:30:24.131266 7f0a8e794a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:30:24.131267 7f0a8e794a80 Options.paranoid_file_checks: 0
+2021/03/14-01:30:24.131267 7f0a8e794a80 Options.force_consistency_checks: 0
+2021/03/14-01:30:24.131268 7f0a8e794a80 Options.report_bg_io_stats: 0
+2021/03/14-01:30:24.131705 7f0a8e794a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:30:24.131708 7f0a8e794a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:30:24.131831 7f0a8e794a80 EVENT_LOG_v1 {"time_micros": 1615681824131821, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:30:24.131836 7f0a8e794a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:30:24.799570 7f0a8e794a80 EVENT_LOG_v1 {"time_micros": 1615681824799566, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681825489609 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681825489609
new file mode 100644
index 0000000..363ae97
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681825489609
@@ -0,0 +1,186 @@
+2021/03/14-01:30:24.811810 7f0a8e794a80 RocksDB version: 5.11.3
+2021/03/14-01:30:24.811867 7f0a8e794a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:30:24.811868 7f0a8e794a80 Compile date Mar 13 2021
+2021/03/14-01:30:24.811872 7f0a8e794a80 DB SUMMARY
+2021/03/14-01:30:24.811993 7f0a8e794a80 CURRENT file: CURRENT
+2021/03/14-01:30:24.811994 7f0a8e794a80 IDENTITY file: IDENTITY
+2021/03/14-01:30:24.812006 7f0a8e794a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:30:24.812007 7f0a8e794a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:30:24.812008 7f0a8e794a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:30:24.812013 7f0a8e794a80 Options.error_if_exists: 0
+2021/03/14-01:30:24.812013 7f0a8e794a80 Options.create_if_missing: 1
+2021/03/14-01:30:24.812014 7f0a8e794a80 Options.paranoid_checks: 1
+2021/03/14-01:30:24.812015 7f0a8e794a80 Options.env: 0x7f0a8f14e080
+2021/03/14-01:30:24.812015 7f0a8e794a80 Options.info_log: 0x24a4ca0
+2021/03/14-01:30:24.812016 7f0a8e794a80 Options.max_file_opening_threads: 16
+2021/03/14-01:30:24.812016 7f0a8e794a80 Options.statistics: (nil)
+2021/03/14-01:30:24.812017 7f0a8e794a80 Options.use_fsync: 0
+2021/03/14-01:30:24.812018 7f0a8e794a80 Options.max_log_file_size: 0
+2021/03/14-01:30:24.812018 7f0a8e794a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:30:24.812019 7f0a8e794a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:30:24.812019 7f0a8e794a80 Options.keep_log_file_num: 1000
+2021/03/14-01:30:24.812020 7f0a8e794a80 Options.recycle_log_file_num: 0
+2021/03/14-01:30:24.812021 7f0a8e794a80 Options.allow_fallocate: 1
+2021/03/14-01:30:24.812021 7f0a8e794a80 Options.allow_mmap_reads: 0
+2021/03/14-01:30:24.812022 7f0a8e794a80 Options.allow_mmap_writes: 0
+2021/03/14-01:30:24.812022 7f0a8e794a80 Options.use_direct_reads: 0
+2021/03/14-01:30:24.812023 7f0a8e794a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:30:24.812023 7f0a8e794a80 Options.create_missing_column_families: 0
+2021/03/14-01:30:24.812024 7f0a8e794a80 Options.db_log_dir:
+2021/03/14-01:30:24.812025 7f0a8e794a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:30:24.812025 7f0a8e794a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:30:24.812026 7f0a8e794a80 Options.max_subcompactions: 1
+2021/03/14-01:30:24.812026 7f0a8e794a80 Options.max_background_flushes: -1
+2021/03/14-01:30:24.812027 7f0a8e794a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:30:24.812027 7f0a8e794a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:30:24.812028 7f0a8e794a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:30:24.812029 7f0a8e794a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:30:24.812029 7f0a8e794a80 Options.advise_random_on_open: 1
+2021/03/14-01:30:24.812030 7f0a8e794a80 Options.db_write_buffer_size: 0
+2021/03/14-01:30:24.812030 7f0a8e794a80 Options.write_buffer_manager: 0x248cb90
+2021/03/14-01:30:24.812031 7f0a8e794a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:30:24.812031 7f0a8e794a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:30:24.812032 7f0a8e794a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:30:24.812032 7f0a8e794a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:30:24.812033 7f0a8e794a80 Options.rate_limiter: (nil)
+2021/03/14-01:30:24.812034 7f0a8e794a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:30:24.812043 7f0a8e794a80 Options.wal_recovery_mode: 2
+2021/03/14-01:30:24.812043 7f0a8e794a80 Options.enable_thread_tracking: 0
+2021/03/14-01:30:24.812044 7f0a8e794a80 Options.enable_pipelined_write: 0
+2021/03/14-01:30:24.812044 7f0a8e794a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:30:24.812045 7f0a8e794a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:30:24.812046 7f0a8e794a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:30:24.812046 7f0a8e794a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:30:24.812047 7f0a8e794a80 Options.row_cache: None
+2021/03/14-01:30:24.812047 7f0a8e794a80 Options.wal_filter: None
+2021/03/14-01:30:24.812048 7f0a8e794a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:30:24.812048 7f0a8e794a80 Options.allow_ingest_behind: 0
+2021/03/14-01:30:24.812049 7f0a8e794a80 Options.preserve_deletes: 0
+2021/03/14-01:30:24.812050 7f0a8e794a80 Options.two_write_queues: 0
+2021/03/14-01:30:24.812050 7f0a8e794a80 Options.manual_wal_flush: 0
+2021/03/14-01:30:24.812051 7f0a8e794a80 Options.max_background_jobs: 16
+2021/03/14-01:30:24.812052 7f0a8e794a80 Options.max_background_compactions: -1
+2021/03/14-01:30:24.812052 7f0a8e794a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:30:24.812053 7f0a8e794a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:30:24.812053 7f0a8e794a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:30:24.812054 7f0a8e794a80 Options.max_total_wal_size: 0
+2021/03/14-01:30:24.812055 7f0a8e794a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:30:24.812055 7f0a8e794a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:30:24.812056 7f0a8e794a80 Options.max_open_files: -1
+2021/03/14-01:30:24.812056 7f0a8e794a80 Options.bytes_per_sync: 0
+2021/03/14-01:30:24.812057 7f0a8e794a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:30:24.812057 7f0a8e794a80 Options.compaction_readahead_size: 0
+2021/03/14-01:30:24.812058 7f0a8e794a80 Compression algorithms supported:
+2021/03/14-01:30:24.812059 7f0a8e794a80 Snappy supported: 1
+2021/03/14-01:30:24.812059 7f0a8e794a80 Zlib supported: 1
+2021/03/14-01:30:24.812060 7f0a8e794a80 Bzip supported: 1
+2021/03/14-01:30:24.812060 7f0a8e794a80 LZ4 supported: 1
+2021/03/14-01:30:24.812061 7f0a8e794a80 ZSTDNotFinal supported: 1
+2021/03/14-01:30:24.812065 7f0a8e794a80 ZSTD supported: 1
+2021/03/14-01:30:24.812068 7f0a8e794a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:30:24.812069 7f0a8e794a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:30:24.812157 7f0a8e794a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:30:24.812209 7f0a8e794a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:30:24.812211 7f0a8e794a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:30:24.812212 7f0a8e794a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:30:24.812213 7f0a8e794a80 Options.compaction_filter: None
+2021/03/14-01:30:24.812213 7f0a8e794a80 Options.compaction_filter_factory: None
+2021/03/14-01:30:24.812214 7f0a8e794a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:30:24.812215 7f0a8e794a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:30:24.812230 7f0a8e794a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x249c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2481c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:30:24.812230 7f0a8e794a80 Options.write_buffer_size: 134217728
+2021/03/14-01:30:24.812231 7f0a8e794a80 Options.max_write_buffer_number: 6
+2021/03/14-01:30:24.812232 7f0a8e794a80 Options.compression[0]: NoCompression
+2021/03/14-01:30:24.812233 7f0a8e794a80 Options.compression[1]: NoCompression
+2021/03/14-01:30:24.812233 7f0a8e794a80 Options.compression[2]: Snappy
+2021/03/14-01:30:24.812234 7f0a8e794a80 Options.compression[3]: Snappy
+2021/03/14-01:30:24.812234 7f0a8e794a80 Options.compression[4]: Snappy
+2021/03/14-01:30:24.812235 7f0a8e794a80 Options.compression[5]: Snappy
+2021/03/14-01:30:24.812236 7f0a8e794a80 Options.compression[6]: Snappy
+2021/03/14-01:30:24.812236 7f0a8e794a80 Options.bottommost_compression: Disabled
+2021/03/14-01:30:24.812237 7f0a8e794a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:30:24.812249 7f0a8e794a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:30:24.812250 7f0a8e794a80 Options.num_levels: 7
+2021/03/14-01:30:24.812251 7f0a8e794a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:30:24.812252 7f0a8e794a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:30:24.812253 7f0a8e794a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:30:24.812254 7f0a8e794a80 Options.compression_opts.level: -1
+2021/03/14-01:30:24.812255 7f0a8e794a80 Options.compression_opts.strategy: 0
+2021/03/14-01:30:24.812256 7f0a8e794a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:30:24.812257 7f0a8e794a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:30:24.812257 7f0a8e794a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:30:24.812258 7f0a8e794a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:30:24.812259 7f0a8e794a80 Options.target_file_size_base: 67108864
+2021/03/14-01:30:24.812259 7f0a8e794a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:30:24.812260 7f0a8e794a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:30:24.812261 7f0a8e794a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:30:24.812261 7f0a8e794a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:30:24.812263 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:30:24.812272 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:30:24.812273 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:30:24.812273 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:30:24.812274 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:30:24.812274 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:30:24.812275 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:30:24.812275 7f0a8e794a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:30:24.812276 7f0a8e794a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:30:24.812277 7f0a8e794a80 Options.arena_block_size: 16777216
+2021/03/14-01:30:24.812277 7f0a8e794a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:30:24.812278 7f0a8e794a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:30:24.812278 7f0a8e794a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:30:24.812279 7f0a8e794a80 Options.disable_auto_compactions: 0
+2021/03/14-01:30:24.812281 7f0a8e794a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:30:24.812281 7f0a8e794a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:30:24.812282 7f0a8e794a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:30:24.812283 7f0a8e794a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:30:24.812283 7f0a8e794a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:30:24.812284 7f0a8e794a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:30:24.812284 7f0a8e794a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:30:24.812285 7f0a8e794a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:30:24.812286 7f0a8e794a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:30:24.812286 7f0a8e794a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:30:24.812287 7f0a8e794a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:30:24.812288 7f0a8e794a80 Options.table_properties_collectors:
+2021/03/14-01:30:24.812288 7f0a8e794a80 Options.inplace_update_support: 0
+2021/03/14-01:30:24.812289 7f0a8e794a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:30:24.812289 7f0a8e794a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:30:24.812290 7f0a8e794a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:30:24.812291 7f0a8e794a80 Options.bloom_locality: 0
+2021/03/14-01:30:24.812291 7f0a8e794a80 Options.max_successive_merges: 0
+2021/03/14-01:30:24.812292 7f0a8e794a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:30:24.812293 7f0a8e794a80 Options.paranoid_file_checks: 0
+2021/03/14-01:30:24.812293 7f0a8e794a80 Options.force_consistency_checks: 0
+2021/03/14-01:30:24.812294 7f0a8e794a80 Options.report_bg_io_stats: 0
+2021/03/14-01:30:24.812818 7f0a8e794a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:30:24.812821 7f0a8e794a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:30:24.812947 7f0a8e794a80 EVENT_LOG_v1 {"time_micros": 1615681824812937, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:30:24.812952 7f0a8e794a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:30:25.477702 7f0a8e794a80 EVENT_LOG_v1 {"time_micros": 1615681825477698, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681847426042 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681847426042
new file mode 100644
index 0000000..af71f54
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681847426042
@@ -0,0 +1,186 @@
+2021/03/14-01:30:25.489989 7f0a8e794a80 RocksDB version: 5.11.3
+2021/03/14-01:30:25.490043 7f0a8e794a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:30:25.490045 7f0a8e794a80 Compile date Mar 13 2021
+2021/03/14-01:30:25.490050 7f0a8e794a80 DB SUMMARY
+2021/03/14-01:30:25.490170 7f0a8e794a80 CURRENT file: CURRENT
+2021/03/14-01:30:25.490171 7f0a8e794a80 IDENTITY file: IDENTITY
+2021/03/14-01:30:25.490183 7f0a8e794a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:30:25.490184 7f0a8e794a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:30:25.490185 7f0a8e794a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:30:25.490190 7f0a8e794a80 Options.error_if_exists: 0
+2021/03/14-01:30:25.490190 7f0a8e794a80 Options.create_if_missing: 1
+2021/03/14-01:30:25.490191 7f0a8e794a80 Options.paranoid_checks: 1
+2021/03/14-01:30:25.490192 7f0a8e794a80 Options.env: 0x7f0a8f14e080
+2021/03/14-01:30:25.490192 7f0a8e794a80 Options.info_log: 0x24a4ca0
+2021/03/14-01:30:25.490193 7f0a8e794a80 Options.max_file_opening_threads: 16
+2021/03/14-01:30:25.490193 7f0a8e794a80 Options.statistics: (nil)
+2021/03/14-01:30:25.490194 7f0a8e794a80 Options.use_fsync: 0
+2021/03/14-01:30:25.490195 7f0a8e794a80 Options.max_log_file_size: 0
+2021/03/14-01:30:25.490195 7f0a8e794a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:30:25.490196 7f0a8e794a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:30:25.490196 7f0a8e794a80 Options.keep_log_file_num: 1000
+2021/03/14-01:30:25.490197 7f0a8e794a80 Options.recycle_log_file_num: 0
+2021/03/14-01:30:25.490198 7f0a8e794a80 Options.allow_fallocate: 1
+2021/03/14-01:30:25.490198 7f0a8e794a80 Options.allow_mmap_reads: 0
+2021/03/14-01:30:25.490199 7f0a8e794a80 Options.allow_mmap_writes: 0
+2021/03/14-01:30:25.490199 7f0a8e794a80 Options.use_direct_reads: 0
+2021/03/14-01:30:25.490200 7f0a8e794a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:30:25.490200 7f0a8e794a80 Options.create_missing_column_families: 0
+2021/03/14-01:30:25.490201 7f0a8e794a80 Options.db_log_dir:
+2021/03/14-01:30:25.490201 7f0a8e794a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:30:25.490202 7f0a8e794a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:30:25.490203 7f0a8e794a80 Options.max_subcompactions: 1
+2021/03/14-01:30:25.490203 7f0a8e794a80 Options.max_background_flushes: -1
+2021/03/14-01:30:25.490204 7f0a8e794a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:30:25.490204 7f0a8e794a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:30:25.490205 7f0a8e794a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:30:25.490206 7f0a8e794a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:30:25.490206 7f0a8e794a80 Options.advise_random_on_open: 1
+2021/03/14-01:30:25.490207 7f0a8e794a80 Options.db_write_buffer_size: 0
+2021/03/14-01:30:25.490207 7f0a8e794a80 Options.write_buffer_manager: 0x248cb90
+2021/03/14-01:30:25.490208 7f0a8e794a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:30:25.490208 7f0a8e794a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:30:25.490209 7f0a8e794a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:30:25.490209 7f0a8e794a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:30:25.490210 7f0a8e794a80 Options.rate_limiter: (nil)
+2021/03/14-01:30:25.490211 7f0a8e794a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:30:25.490219 7f0a8e794a80 Options.wal_recovery_mode: 2
+2021/03/14-01:30:25.490219 7f0a8e794a80 Options.enable_thread_tracking: 0
+2021/03/14-01:30:25.490220 7f0a8e794a80 Options.enable_pipelined_write: 0
+2021/03/14-01:30:25.490221 7f0a8e794a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:30:25.490221 7f0a8e794a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:30:25.490222 7f0a8e794a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:30:25.490222 7f0a8e794a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:30:25.490223 7f0a8e794a80 Options.row_cache: None
+2021/03/14-01:30:25.490223 7f0a8e794a80 Options.wal_filter: None
+2021/03/14-01:30:25.490224 7f0a8e794a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:30:25.490225 7f0a8e794a80 Options.allow_ingest_behind: 0
+2021/03/14-01:30:25.490225 7f0a8e794a80 Options.preserve_deletes: 0
+2021/03/14-01:30:25.490226 7f0a8e794a80 Options.two_write_queues: 0
+2021/03/14-01:30:25.490226 7f0a8e794a80 Options.manual_wal_flush: 0
+2021/03/14-01:30:25.490227 7f0a8e794a80 Options.max_background_jobs: 16
+2021/03/14-01:30:25.490228 7f0a8e794a80 Options.max_background_compactions: -1
+2021/03/14-01:30:25.490228 7f0a8e794a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:30:25.490229 7f0a8e794a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:30:25.490229 7f0a8e794a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:30:25.490230 7f0a8e794a80 Options.max_total_wal_size: 0
+2021/03/14-01:30:25.490231 7f0a8e794a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:30:25.490231 7f0a8e794a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:30:25.490232 7f0a8e794a80 Options.max_open_files: -1
+2021/03/14-01:30:25.490232 7f0a8e794a80 Options.bytes_per_sync: 0
+2021/03/14-01:30:25.490233 7f0a8e794a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:30:25.490233 7f0a8e794a80 Options.compaction_readahead_size: 0
+2021/03/14-01:30:25.490234 7f0a8e794a80 Compression algorithms supported:
+2021/03/14-01:30:25.490235 7f0a8e794a80 Snappy supported: 1
+2021/03/14-01:30:25.490235 7f0a8e794a80 Zlib supported: 1
+2021/03/14-01:30:25.490236 7f0a8e794a80 Bzip supported: 1
+2021/03/14-01:30:25.490236 7f0a8e794a80 LZ4 supported: 1
+2021/03/14-01:30:25.490237 7f0a8e794a80 ZSTDNotFinal supported: 1
+2021/03/14-01:30:25.490246 7f0a8e794a80 ZSTD supported: 1
+2021/03/14-01:30:25.490250 7f0a8e794a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:30:25.490252 7f0a8e794a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:30:25.490342 7f0a8e794a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:30:25.490396 7f0a8e794a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:30:25.490398 7f0a8e794a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:30:25.490398 7f0a8e794a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:30:25.490399 7f0a8e794a80 Options.compaction_filter: None
+2021/03/14-01:30:25.490400 7f0a8e794a80 Options.compaction_filter_factory: None
+2021/03/14-01:30:25.490400 7f0a8e794a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:30:25.490401 7f0a8e794a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:30:25.490416 7f0a8e794a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x249c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2481c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:30:25.490417 7f0a8e794a80 Options.write_buffer_size: 134217728
+2021/03/14-01:30:25.490418 7f0a8e794a80 Options.max_write_buffer_number: 6
+2021/03/14-01:30:25.490418 7f0a8e794a80 Options.compression[0]: NoCompression
+2021/03/14-01:30:25.490419 7f0a8e794a80 Options.compression[1]: NoCompression
+2021/03/14-01:30:25.490420 7f0a8e794a80 Options.compression[2]: Snappy
+2021/03/14-01:30:25.490420 7f0a8e794a80 Options.compression[3]: Snappy
+2021/03/14-01:30:25.490421 7f0a8e794a80 Options.compression[4]: Snappy
+2021/03/14-01:30:25.490421 7f0a8e794a80 Options.compression[5]: Snappy
+2021/03/14-01:30:25.490422 7f0a8e794a80 Options.compression[6]: Snappy
+2021/03/14-01:30:25.490423 7f0a8e794a80 Options.bottommost_compression: Disabled
+2021/03/14-01:30:25.490423 7f0a8e794a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:30:25.490424 7f0a8e794a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:30:25.490425 7f0a8e794a80 Options.num_levels: 7
+2021/03/14-01:30:25.490425 7f0a8e794a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:30:25.490426 7f0a8e794a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:30:25.490426 7f0a8e794a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:30:25.490427 7f0a8e794a80 Options.compression_opts.level: -1
+2021/03/14-01:30:25.490428 7f0a8e794a80 Options.compression_opts.strategy: 0
+2021/03/14-01:30:25.490428 7f0a8e794a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:30:25.490429 7f0a8e794a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:30:25.490429 7f0a8e794a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:30:25.490430 7f0a8e794a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:30:25.490430 7f0a8e794a80 Options.target_file_size_base: 67108864
+2021/03/14-01:30:25.490431 7f0a8e794a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:30:25.490431 7f0a8e794a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:30:25.490432 7f0a8e794a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:30:25.490433 7f0a8e794a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:30:25.490434 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:30:25.490442 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:30:25.490443 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:30:25.490444 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:30:25.490444 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:30:25.490445 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:30:25.490445 7f0a8e794a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:30:25.490446 7f0a8e794a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:30:25.490446 7f0a8e794a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:30:25.490447 7f0a8e794a80 Options.arena_block_size: 16777216
+2021/03/14-01:30:25.490447 7f0a8e794a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:30:25.490448 7f0a8e794a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:30:25.490449 7f0a8e794a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:30:25.490449 7f0a8e794a80 Options.disable_auto_compactions: 0
+2021/03/14-01:30:25.490451 7f0a8e794a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:30:25.490451 7f0a8e794a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:30:25.490452 7f0a8e794a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:30:25.490453 7f0a8e794a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:30:25.490453 7f0a8e794a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:30:25.490454 7f0a8e794a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:30:25.490454 7f0a8e794a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:30:25.490455 7f0a8e794a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:30:25.490456 7f0a8e794a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:30:25.490457 7f0a8e794a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:30:25.490457 7f0a8e794a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:30:25.490458 7f0a8e794a80 Options.table_properties_collectors:
+2021/03/14-01:30:25.490458 7f0a8e794a80 Options.inplace_update_support: 0
+2021/03/14-01:30:25.490459 7f0a8e794a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:30:25.490459 7f0a8e794a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:30:25.490460 7f0a8e794a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:30:25.490461 7f0a8e794a80 Options.bloom_locality: 0
+2021/03/14-01:30:25.490461 7f0a8e794a80 Options.max_successive_merges: 0
+2021/03/14-01:30:25.490462 7f0a8e794a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:30:25.490462 7f0a8e794a80 Options.paranoid_file_checks: 0
+2021/03/14-01:30:25.490463 7f0a8e794a80 Options.force_consistency_checks: 0
+2021/03/14-01:30:25.490463 7f0a8e794a80 Options.report_bg_io_stats: 0
+2021/03/14-01:30:25.490830 7f0a8e794a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:30:25.490832 7f0a8e794a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:30:25.490959 7f0a8e794a80 EVENT_LOG_v1 {"time_micros": 1615681825490949, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:30:25.490964 7f0a8e794a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:30:26.164076 7f0a8e794a80 EVENT_LOG_v1 {"time_micros": 1615681826164072, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681848092758 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681848092758
new file mode 100644
index 0000000..542f16e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681848092758
@@ -0,0 +1,186 @@
+2021/03/14-01:30:47.426633 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:30:47.426696 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:30:47.426697 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:30:47.426699 7ffff7156a80 DB SUMMARY
+2021/03/14-01:30:47.426819 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:30:47.426820 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:30:47.426831 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:30:47.426833 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:30:47.426833 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:30:47.426838 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:30:47.426839 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:30:47.426839 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:30:47.426840 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:30:47.426840 7ffff7156a80 Options.info_log: 0xfb2fa0
+2021/03/14-01:30:47.426841 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:30:47.426842 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:30:47.426842 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:30:47.426843 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:30:47.426843 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:30:47.426844 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:30:47.426845 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:30:47.426845 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:30:47.426846 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:30:47.426846 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:30:47.426847 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:30:47.426848 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:30:47.426848 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:30:47.426849 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:30:47.426849 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:30:47.426850 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:30:47.426850 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:30:47.426851 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:30:47.426851 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:30:47.426852 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:30:47.426853 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:30:47.426853 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:30:47.426854 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:30:47.426854 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:30:47.426855 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:30:47.426855 7ffff7156a80 Options.write_buffer_manager: 0xf9aeb0
+2021/03/14-01:30:47.426856 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:30:47.426857 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:30:47.426857 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:30:47.426858 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:30:47.426858 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:30:47.426859 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:30:47.426867 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:30:47.426868 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:30:47.426868 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:30:47.426869 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:30:47.426869 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:30:47.426870 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:30:47.426871 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:30:47.426871 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:30:47.426872 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:30:47.426872 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:30:47.426873 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:30:47.426873 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:30:47.426874 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:30:47.426874 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:30:47.426876 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:30:47.426876 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:30:47.426877 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:30:47.426877 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:30:47.426878 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:30:47.426879 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:30:47.426879 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:30:47.426880 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:30:47.426880 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:30:47.426881 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:30:47.426881 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:30:47.426882 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:30:47.426882 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:30:47.426883 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:30:47.426884 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:30:47.426884 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:30:47.426885 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:30:47.426885 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:30:47.426887 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:30:47.426890 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:30:47.426891 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:30:47.427006 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:30:47.427057 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:30:47.427059 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:30:47.427060 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:30:47.427060 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:30:47.427061 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:30:47.427061 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:30:47.427062 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:30:47.427078 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfaa840)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xf8ff40
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:30:47.427079 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:30:47.427080 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:30:47.427080 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:30:47.427081 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:30:47.427082 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:30:47.427082 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:30:47.427083 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:30:47.427084 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:30:47.427084 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:30:47.427085 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:30:47.427085 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:30:47.427086 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:30:47.427087 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:30:47.427087 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:30:47.427088 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:30:47.427088 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:30:47.427089 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:30:47.427089 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:30:47.427090 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:30:47.427091 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:30:47.427091 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:30:47.427092 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:30:47.427092 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:30:47.427093 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:30:47.427093 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:30:47.427094 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:30:47.427095 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:30:47.427096 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:30:47.427104 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:30:47.427105 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:30:47.427105 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:30:47.427106 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:30:47.427106 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:30:47.427107 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:30:47.427107 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:30:47.427108 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:30:47.427109 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:30:47.427109 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:30:47.427110 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:30:47.427110 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:30:47.427111 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:30:47.427112 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:30:47.427112 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:30:47.427113 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:30:47.427113 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:30:47.427114 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:30:47.427115 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:30:47.427115 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:30:47.427116 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:30:47.427116 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:30:47.427117 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:30:47.427118 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:30:47.427118 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:30:47.427119 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:30:47.427119 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:30:47.427120 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:30:47.427121 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:30:47.427121 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:30:47.427122 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:30:47.427122 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:30:47.427123 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:30:47.427123 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:30:47.427124 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:30:47.428517 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:30:47.428520 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:30:47.428646 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615681847428639, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:30:47.428652 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:30:48.086108 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681848753006 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681848753006
new file mode 100644
index 0000000..204b368
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681848753006
@@ -0,0 +1,186 @@
+2021/03/14-01:30:48.093288 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:30:48.093320 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:30:48.093321 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:30:48.093322 7ffff7156a80 DB SUMMARY
+2021/03/14-01:30:48.093444 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:30:48.093446 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:30:48.093457 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:30:48.093458 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:30:48.093459 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:30:48.093463 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:30:48.093464 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:30:48.093464 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:30:48.093465 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:30:48.093465 7ffff7156a80 Options.info_log: 0xfc5e60
+2021/03/14-01:30:48.093466 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:30:48.093467 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:30:48.093467 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:30:48.093468 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:30:48.093469 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:30:48.093469 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:30:48.093470 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:30:48.093470 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:30:48.093471 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:30:48.093472 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:30:48.093472 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:30:48.093473 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:30:48.093473 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:30:48.093474 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:30:48.093474 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:30:48.093475 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:30:48.093476 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:30:48.093476 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:30:48.093477 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:30:48.093477 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:30:48.093478 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:30:48.093479 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:30:48.093479 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:30:48.093480 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:30:48.093480 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:30:48.093481 7ffff7156a80 Options.write_buffer_manager: 0xfc5db0
+2021/03/14-01:30:48.093481 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:30:48.093482 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:30:48.093483 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:30:48.093483 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:30:48.093484 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:30:48.093484 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:30:48.093492 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:30:48.093493 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:30:48.093493 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:30:48.093494 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:30:48.093494 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:30:48.093495 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:30:48.093496 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:30:48.093496 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:30:48.093497 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:30:48.093497 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:30:48.093498 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:30:48.093498 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:30:48.093499 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:30:48.093499 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:30:48.093500 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:30:48.093501 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:30:48.093501 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:30:48.093502 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:30:48.093502 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:30:48.093503 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:30:48.093503 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:30:48.093504 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:30:48.093505 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:30:48.093505 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:30:48.093506 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:30:48.093506 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:30:48.093507 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:30:48.093508 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:30:48.093508 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:30:48.093509 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:30:48.093509 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:30:48.093510 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:30:48.093511 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:30:48.093512 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:30:48.093513 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:30:48.093576 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:30:48.093615 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:30:48.093616 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:30:48.093617 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:30:48.093618 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:30:48.093618 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:30:48.093619 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:30:48.093619 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:30:48.093634 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfc8670)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xfcae50
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:30:48.093635 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:30:48.093636 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:30:48.093636 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:30:48.093637 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:30:48.093638 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:30:48.093638 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:30:48.093639 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:30:48.093639 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:30:48.093640 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:30:48.093641 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:30:48.093641 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:30:48.093642 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:30:48.093642 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:30:48.093643 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:30:48.093644 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:30:48.093644 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:30:48.093645 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:30:48.093645 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:30:48.093646 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:30:48.093647 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:30:48.093647 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:30:48.093648 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:30:48.093648 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:30:48.093649 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:30:48.093649 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:30:48.093650 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:30:48.093651 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:30:48.093652 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:30:48.093660 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:30:48.093661 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:30:48.093662 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:30:48.093662 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:30:48.093663 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:30:48.093663 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:30:48.093664 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:30:48.093664 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:30:48.093665 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:30:48.093666 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:30:48.093666 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:30:48.093667 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:30:48.093667 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:30:48.093668 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:30:48.093669 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:30:48.093670 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:30:48.093670 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:30:48.093671 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:30:48.093672 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:30:48.093672 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:30:48.093673 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:30:48.093674 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:30:48.093674 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:30:48.093675 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:30:48.093675 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:30:48.093676 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:30:48.093676 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:30:48.093677 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:30:48.093678 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:30:48.093678 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:30:48.093679 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:30:48.093680 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:30:48.093680 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:30:48.093681 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:30:48.093681 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:30:48.095366 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:30:48.095370 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:30:48.095487 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615681848095485, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:30:48.095490 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:30:48.746715 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681849429309 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681849429309
new file mode 100644
index 0000000..e75e946
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681849429309
@@ -0,0 +1,186 @@
+2021/03/14-01:30:48.753270 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:30:48.753300 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:30:48.753301 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:30:48.753302 7ffff7156a80 DB SUMMARY
+2021/03/14-01:30:48.753414 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:30:48.753415 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:30:48.753426 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:30:48.753427 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:30:48.753428 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:30:48.753431 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:30:48.753432 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:30:48.753432 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:30:48.753433 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:30:48.753433 7ffff7156a80 Options.info_log: 0xff9180
+2021/03/14-01:30:48.753434 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:30:48.753435 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:30:48.753435 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:30:48.753436 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:30:48.753436 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:30:48.753437 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:30:48.753437 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:30:48.753438 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:30:48.753438 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:30:48.753439 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:30:48.753439 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:30:48.753440 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:30:48.753440 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:30:48.753441 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:30:48.753441 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:30:48.753442 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:30:48.753442 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:30:48.753443 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:30:48.753443 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:30:48.753444 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:30:48.753445 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:30:48.753445 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:30:48.753446 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:30:48.753446 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:30:48.753447 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:30:48.753447 7ffff7156a80 Options.write_buffer_manager: 0xff90d0
+2021/03/14-01:30:48.753448 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:30:48.753448 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:30:48.753449 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:30:48.753449 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:30:48.753450 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:30:48.753450 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:30:48.753457 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:30:48.753458 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:30:48.753458 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:30:48.753459 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:30:48.753459 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:30:48.753460 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:30:48.753460 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:30:48.753461 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:30:48.753461 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:30:48.753462 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:30:48.753462 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:30:48.753463 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:30:48.753463 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:30:48.753464 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:30:48.753464 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:30:48.753465 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:30:48.753465 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:30:48.753466 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:30:48.753467 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:30:48.753467 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:30:48.753468 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:30:48.753468 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:30:48.753469 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:30:48.753469 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:30:48.753470 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:30:48.753470 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:30:48.753471 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:30:48.753471 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:30:48.753472 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:30:48.753472 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:30:48.753473 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:30:48.753473 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:30:48.753474 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:30:48.753475 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:30:48.753476 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:30:48.753538 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:30:48.753574 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:30:48.753575 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:30:48.753576 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:30:48.753576 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:30:48.753577 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:30:48.753577 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:30:48.753578 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:30:48.753592 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xff8690)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xffbce0
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:30:48.753593 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:30:48.753593 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:30:48.753594 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:30:48.753594 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:30:48.753595 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:30:48.753596 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:30:48.753596 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:30:48.753597 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:30:48.753597 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:30:48.753598 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:30:48.753598 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:30:48.753599 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:30:48.753600 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:30:48.753600 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:30:48.753601 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:30:48.753601 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:30:48.753602 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:30:48.753602 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:30:48.753603 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:30:48.753603 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:30:48.753604 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:30:48.753604 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:30:48.753605 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:30:48.753605 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:30:48.753606 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:30:48.753607 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:30:48.753607 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:30:48.753609 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:30:48.753615 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:30:48.753616 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:30:48.753617 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:30:48.753617 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:30:48.753618 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:30:48.753618 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:30:48.753619 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:30:48.753619 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:30:48.753620 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:30:48.753620 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:30:48.753621 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:30:48.753621 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:30:48.753622 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:30:48.753623 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:30:48.753624 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:30:48.753624 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:30:48.753625 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:30:48.753625 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:30:48.753626 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:30:48.753626 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:30:48.753627 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:30:48.753628 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:30:48.753628 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:30:48.753629 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:30:48.753630 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:30:48.753630 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:30:48.753631 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:30:48.753631 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:30:48.753632 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:30:48.753633 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:30:48.753633 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:30:48.753634 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:30:48.753634 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:30:48.753635 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:30:48.753635 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:30:48.755601 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:30:48.755605 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:30:48.755720 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615681848755718, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:30:48.755723 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:30:49.423107 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681912373507 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681912373507
new file mode 100644
index 0000000..96bfcf6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681912373507
@@ -0,0 +1,186 @@
+2021/03/14-01:30:49.430122 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:30:49.430153 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:30:49.430155 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:30:49.430156 7ffff7156a80 DB SUMMARY
+2021/03/14-01:30:49.430294 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:30:49.430296 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:30:49.430320 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:30:49.430321 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:30:49.430322 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:30:49.430325 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:30:49.430326 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:30:49.430326 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:30:49.430327 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:30:49.430328 7ffff7156a80 Options.info_log: 0x10247f0
+2021/03/14-01:30:49.430328 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:30:49.430329 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:30:49.430329 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:30:49.430330 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:30:49.430330 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:30:49.430331 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:30:49.430332 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:30:49.430332 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:30:49.430333 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:30:49.430333 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:30:49.430334 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:30:49.430334 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:30:49.430335 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:30:49.430335 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:30:49.430336 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:30:49.430336 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:30:49.430337 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:30:49.430337 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:30:49.430338 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:30:49.430338 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:30:49.430339 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:30:49.430339 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:30:49.430340 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:30:49.430340 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:30:49.430341 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:30:49.430341 7ffff7156a80 Options.write_buffer_manager: 0x1045e30
+2021/03/14-01:30:49.430342 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:30:49.430343 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:30:49.430343 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:30:49.430344 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:30:49.430344 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:30:49.430345 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:30:49.430353 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:30:49.430353 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:30:49.430354 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:30:49.430354 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:30:49.430355 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:30:49.430355 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:30:49.430356 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:30:49.430356 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:30:49.430357 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:30:49.430358 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:30:49.430358 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:30:49.430359 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:30:49.430359 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:30:49.430359 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:30:49.430360 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:30:49.430361 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:30:49.430361 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:30:49.430362 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:30:49.430362 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:30:49.430363 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:30:49.430363 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:30:49.430364 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:30:49.430364 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:30:49.430365 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:30:49.430365 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:30:49.430366 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:30:49.430366 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:30:49.430367 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:30:49.430367 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:30:49.430368 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:30:49.430368 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:30:49.430369 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:30:49.430370 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:30:49.430371 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:30:49.430372 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:30:49.430433 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:30:49.430468 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:30:49.430469 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:30:49.430470 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:30:49.430470 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:30:49.430471 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:30:49.430471 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:30:49.430472 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:30:49.430486 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1027870)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x102be60
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:30:49.430486 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:30:49.430487 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:30:49.430488 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:30:49.430488 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:30:49.430489 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:30:49.430489 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:30:49.430490 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:30:49.430490 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:30:49.430491 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:30:49.430492 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:30:49.430492 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:30:49.430493 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:30:49.430493 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:30:49.430494 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:30:49.430494 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:30:49.430495 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:30:49.430495 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:30:49.430496 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:30:49.430496 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:30:49.430497 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:30:49.430497 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:30:49.430498 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:30:49.430498 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:30:49.430499 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:30:49.430500 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:30:49.430500 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:30:49.430501 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:30:49.430502 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:30:49.430508 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:30:49.430509 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:30:49.430510 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:30:49.430510 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:30:49.430511 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:30:49.430511 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:30:49.430512 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:30:49.430512 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:30:49.430513 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:30:49.430513 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:30:49.430514 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:30:49.430515 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:30:49.430515 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:30:49.430516 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:30:49.430517 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:30:49.430518 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:30:49.430518 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:30:49.430519 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:30:49.430519 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:30:49.430520 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:30:49.430521 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:30:49.430521 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:30:49.430522 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:30:49.430522 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:30:49.430523 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:30:49.430523 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:30:49.430524 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:30:49.430524 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:30:49.430525 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:30:49.430526 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:30:49.430526 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:30:49.430527 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:30:49.430527 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:30:49.430528 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:30:49.430528 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:30:49.432187 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:30:49.432191 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:30:49.432306 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615681849432304, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:30:49.432309 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:30:50.113209 7ffff7156a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681913063161 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681913063161
new file mode 100644
index 0000000..986bee2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681913063161
@@ -0,0 +1,186 @@
+2021/03/14-01:31:52.374012 7fd214bcfa80 RocksDB version: 5.11.3
+2021/03/14-01:31:52.374094 7fd214bcfa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:31:52.374096 7fd214bcfa80 Compile date Mar 13 2021
+2021/03/14-01:31:52.374099 7fd214bcfa80 DB SUMMARY
+2021/03/14-01:31:52.374253 7fd214bcfa80 CURRENT file: CURRENT
+2021/03/14-01:31:52.374255 7fd214bcfa80 IDENTITY file: IDENTITY
+2021/03/14-01:31:52.374269 7fd214bcfa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:31:52.374270 7fd214bcfa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:31:52.374271 7fd214bcfa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:31:52.374276 7fd214bcfa80 Options.error_if_exists: 0
+2021/03/14-01:31:52.374277 7fd214bcfa80 Options.create_if_missing: 1
+2021/03/14-01:31:52.374278 7fd214bcfa80 Options.paranoid_checks: 1
+2021/03/14-01:31:52.374278 7fd214bcfa80 Options.env: 0x7fd215589080
+2021/03/14-01:31:52.374279 7fd214bcfa80 Options.info_log: 0x2ae4ca0
+2021/03/14-01:31:52.374280 7fd214bcfa80 Options.max_file_opening_threads: 16
+2021/03/14-01:31:52.374280 7fd214bcfa80 Options.statistics: (nil)
+2021/03/14-01:31:52.374281 7fd214bcfa80 Options.use_fsync: 0
+2021/03/14-01:31:52.374282 7fd214bcfa80 Options.max_log_file_size: 0
+2021/03/14-01:31:52.374283 7fd214bcfa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:31:52.374283 7fd214bcfa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:31:52.374284 7fd214bcfa80 Options.keep_log_file_num: 1000
+2021/03/14-01:31:52.374285 7fd214bcfa80 Options.recycle_log_file_num: 0
+2021/03/14-01:31:52.374285 7fd214bcfa80 Options.allow_fallocate: 1
+2021/03/14-01:31:52.374286 7fd214bcfa80 Options.allow_mmap_reads: 0
+2021/03/14-01:31:52.374287 7fd214bcfa80 Options.allow_mmap_writes: 0
+2021/03/14-01:31:52.374287 7fd214bcfa80 Options.use_direct_reads: 0
+2021/03/14-01:31:52.374288 7fd214bcfa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:31:52.374289 7fd214bcfa80 Options.create_missing_column_families: 0
+2021/03/14-01:31:52.374289 7fd214bcfa80 Options.db_log_dir:
+2021/03/14-01:31:52.374290 7fd214bcfa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:31:52.374290 7fd214bcfa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:31:52.374291 7fd214bcfa80 Options.max_subcompactions: 1
+2021/03/14-01:31:52.374292 7fd214bcfa80 Options.max_background_flushes: -1
+2021/03/14-01:31:52.374293 7fd214bcfa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:31:52.374293 7fd214bcfa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:31:52.374294 7fd214bcfa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:31:52.374295 7fd214bcfa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:31:52.374295 7fd214bcfa80 Options.advise_random_on_open: 1
+2021/03/14-01:31:52.374296 7fd214bcfa80 Options.db_write_buffer_size: 0
+2021/03/14-01:31:52.374296 7fd214bcfa80 Options.write_buffer_manager: 0x2accb90
+2021/03/14-01:31:52.374297 7fd214bcfa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:31:52.374298 7fd214bcfa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:31:52.374298 7fd214bcfa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:31:52.374299 7fd214bcfa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:31:52.374300 7fd214bcfa80 Options.rate_limiter: (nil)
+2021/03/14-01:31:52.374301 7fd214bcfa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:31:52.374312 7fd214bcfa80 Options.wal_recovery_mode: 2
+2021/03/14-01:31:52.374313 7fd214bcfa80 Options.enable_thread_tracking: 0
+2021/03/14-01:31:52.374313 7fd214bcfa80 Options.enable_pipelined_write: 0
+2021/03/14-01:31:52.374314 7fd214bcfa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:31:52.374315 7fd214bcfa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:31:52.374315 7fd214bcfa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:31:52.374316 7fd214bcfa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:31:52.374317 7fd214bcfa80 Options.row_cache: None
+2021/03/14-01:31:52.374317 7fd214bcfa80 Options.wal_filter: None
+2021/03/14-01:31:52.374318 7fd214bcfa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:31:52.374319 7fd214bcfa80 Options.allow_ingest_behind: 0
+2021/03/14-01:31:52.374319 7fd214bcfa80 Options.preserve_deletes: 0
+2021/03/14-01:31:52.374320 7fd214bcfa80 Options.two_write_queues: 0
+2021/03/14-01:31:52.374320 7fd214bcfa80 Options.manual_wal_flush: 0
+2021/03/14-01:31:52.374322 7fd214bcfa80 Options.max_background_jobs: 16
+2021/03/14-01:31:52.374323 7fd214bcfa80 Options.max_background_compactions: -1
+2021/03/14-01:31:52.374323 7fd214bcfa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:31:52.374324 7fd214bcfa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:31:52.374325 7fd214bcfa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:31:52.374325 7fd214bcfa80 Options.max_total_wal_size: 0
+2021/03/14-01:31:52.374326 7fd214bcfa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:31:52.374327 7fd214bcfa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:31:52.374327 7fd214bcfa80 Options.max_open_files: -1
+2021/03/14-01:31:52.374328 7fd214bcfa80 Options.bytes_per_sync: 0
+2021/03/14-01:31:52.374329 7fd214bcfa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:31:52.374329 7fd214bcfa80 Options.compaction_readahead_size: 0
+2021/03/14-01:31:52.374330 7fd214bcfa80 Compression algorithms supported:
+2021/03/14-01:31:52.374331 7fd214bcfa80 Snappy supported: 1
+2021/03/14-01:31:52.374331 7fd214bcfa80 Zlib supported: 1
+2021/03/14-01:31:52.374332 7fd214bcfa80 Bzip supported: 1
+2021/03/14-01:31:52.374333 7fd214bcfa80 LZ4 supported: 1
+2021/03/14-01:31:52.374333 7fd214bcfa80 ZSTDNotFinal supported: 1
+2021/03/14-01:31:52.374339 7fd214bcfa80 ZSTD supported: 1
+2021/03/14-01:31:52.374343 7fd214bcfa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:31:52.374345 7fd214bcfa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:31:52.374496 7fd214bcfa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:31:52.374565 7fd214bcfa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:31:52.374567 7fd214bcfa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:31:52.374568 7fd214bcfa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:31:52.374568 7fd214bcfa80 Options.compaction_filter: None
+2021/03/14-01:31:52.374569 7fd214bcfa80 Options.compaction_filter_factory: None
+2021/03/14-01:31:52.374570 7fd214bcfa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:31:52.374571 7fd214bcfa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:31:52.374589 7fd214bcfa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2adc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2ac1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:31:52.374590 7fd214bcfa80 Options.write_buffer_size: 134217728
+2021/03/14-01:31:52.374591 7fd214bcfa80 Options.max_write_buffer_number: 6
+2021/03/14-01:31:52.374592 7fd214bcfa80 Options.compression[0]: NoCompression
+2021/03/14-01:31:52.374593 7fd214bcfa80 Options.compression[1]: NoCompression
+2021/03/14-01:31:52.374593 7fd214bcfa80 Options.compression[2]: Snappy
+2021/03/14-01:31:52.374594 7fd214bcfa80 Options.compression[3]: Snappy
+2021/03/14-01:31:52.374595 7fd214bcfa80 Options.compression[4]: Snappy
+2021/03/14-01:31:52.374595 7fd214bcfa80 Options.compression[5]: Snappy
+2021/03/14-01:31:52.374596 7fd214bcfa80 Options.compression[6]: Snappy
+2021/03/14-01:31:52.374597 7fd214bcfa80 Options.bottommost_compression: Disabled
+2021/03/14-01:31:52.374598 7fd214bcfa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:31:52.374598 7fd214bcfa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:31:52.374599 7fd214bcfa80 Options.num_levels: 7
+2021/03/14-01:31:52.374600 7fd214bcfa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:31:52.374600 7fd214bcfa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:31:52.374601 7fd214bcfa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:31:52.374602 7fd214bcfa80 Options.compression_opts.level: -1
+2021/03/14-01:31:52.374602 7fd214bcfa80 Options.compression_opts.strategy: 0
+2021/03/14-01:31:52.374603 7fd214bcfa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:31:52.374604 7fd214bcfa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:31:52.374604 7fd214bcfa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:31:52.374605 7fd214bcfa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:31:52.374606 7fd214bcfa80 Options.target_file_size_base: 67108864
+2021/03/14-01:31:52.374606 7fd214bcfa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:31:52.374607 7fd214bcfa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:31:52.374608 7fd214bcfa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:31:52.374608 7fd214bcfa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:31:52.374610 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:31:52.374620 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:31:52.374621 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:31:52.374621 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:31:52.374622 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:31:52.374622 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:31:52.374623 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:31:52.374624 7fd214bcfa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:31:52.374625 7fd214bcfa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:31:52.374625 7fd214bcfa80 Options.arena_block_size: 16777216
+2021/03/14-01:31:52.374626 7fd214bcfa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:31:52.374627 7fd214bcfa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:31:52.374627 7fd214bcfa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:31:52.374628 7fd214bcfa80 Options.disable_auto_compactions: 0
+2021/03/14-01:31:52.374630 7fd214bcfa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:31:52.374631 7fd214bcfa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:31:52.374632 7fd214bcfa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:31:52.374632 7fd214bcfa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:31:52.374633 7fd214bcfa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:31:52.374634 7fd214bcfa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:31:52.374634 7fd214bcfa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:31:52.374636 7fd214bcfa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:31:52.374636 7fd214bcfa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:31:52.374637 7fd214bcfa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:31:52.374638 7fd214bcfa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:31:52.374638 7fd214bcfa80 Options.table_properties_collectors:
+2021/03/14-01:31:52.374639 7fd214bcfa80 Options.inplace_update_support: 0
+2021/03/14-01:31:52.374640 7fd214bcfa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:31:52.374640 7fd214bcfa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:31:52.374641 7fd214bcfa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:31:52.374642 7fd214bcfa80 Options.bloom_locality: 0
+2021/03/14-01:31:52.374643 7fd214bcfa80 Options.max_successive_merges: 0
+2021/03/14-01:31:52.374643 7fd214bcfa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:31:52.374644 7fd214bcfa80 Options.paranoid_file_checks: 0
+2021/03/14-01:31:52.374645 7fd214bcfa80 Options.force_consistency_checks: 0
+2021/03/14-01:31:52.374645 7fd214bcfa80 Options.report_bg_io_stats: 0
+2021/03/14-01:31:52.375149 7fd214bcfa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:31:52.375152 7fd214bcfa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:31:52.375331 7fd214bcfa80 EVENT_LOG_v1 {"time_micros": 1615681912375317, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:31:52.375338 7fd214bcfa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:31:53.050903 7fd214bcfa80 EVENT_LOG_v1 {"time_micros": 1615681913050900, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681913744259 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681913744259
new file mode 100644
index 0000000..c569a7c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681913744259
@@ -0,0 +1,186 @@
+2021/03/14-01:31:53.063541 7fd214bcfa80 RocksDB version: 5.11.3
+2021/03/14-01:31:53.063599 7fd214bcfa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:31:53.063601 7fd214bcfa80 Compile date Mar 13 2021
+2021/03/14-01:31:53.063603 7fd214bcfa80 DB SUMMARY
+2021/03/14-01:31:53.063728 7fd214bcfa80 CURRENT file: CURRENT
+2021/03/14-01:31:53.063730 7fd214bcfa80 IDENTITY file: IDENTITY
+2021/03/14-01:31:53.063742 7fd214bcfa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:31:53.063743 7fd214bcfa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:31:53.063744 7fd214bcfa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:31:53.063748 7fd214bcfa80 Options.error_if_exists: 0
+2021/03/14-01:31:53.063749 7fd214bcfa80 Options.create_if_missing: 1
+2021/03/14-01:31:53.063750 7fd214bcfa80 Options.paranoid_checks: 1
+2021/03/14-01:31:53.063750 7fd214bcfa80 Options.env: 0x7fd215589080
+2021/03/14-01:31:53.063751 7fd214bcfa80 Options.info_log: 0x2ae4ca0
+2021/03/14-01:31:53.063751 7fd214bcfa80 Options.max_file_opening_threads: 16
+2021/03/14-01:31:53.063752 7fd214bcfa80 Options.statistics: (nil)
+2021/03/14-01:31:53.063753 7fd214bcfa80 Options.use_fsync: 0
+2021/03/14-01:31:53.063753 7fd214bcfa80 Options.max_log_file_size: 0
+2021/03/14-01:31:53.063754 7fd214bcfa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:31:53.063755 7fd214bcfa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:31:53.063755 7fd214bcfa80 Options.keep_log_file_num: 1000
+2021/03/14-01:31:53.063756 7fd214bcfa80 Options.recycle_log_file_num: 0
+2021/03/14-01:31:53.063756 7fd214bcfa80 Options.allow_fallocate: 1
+2021/03/14-01:31:53.063757 7fd214bcfa80 Options.allow_mmap_reads: 0
+2021/03/14-01:31:53.063758 7fd214bcfa80 Options.allow_mmap_writes: 0
+2021/03/14-01:31:53.063758 7fd214bcfa80 Options.use_direct_reads: 0
+2021/03/14-01:31:53.063759 7fd214bcfa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:31:53.063759 7fd214bcfa80 Options.create_missing_column_families: 0
+2021/03/14-01:31:53.063760 7fd214bcfa80 Options.db_log_dir:
+2021/03/14-01:31:53.063760 7fd214bcfa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:31:53.063761 7fd214bcfa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:31:53.063761 7fd214bcfa80 Options.max_subcompactions: 1
+2021/03/14-01:31:53.063762 7fd214bcfa80 Options.max_background_flushes: -1
+2021/03/14-01:31:53.063763 7fd214bcfa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:31:53.063763 7fd214bcfa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:31:53.063764 7fd214bcfa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:31:53.063764 7fd214bcfa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:31:53.063765 7fd214bcfa80 Options.advise_random_on_open: 1
+2021/03/14-01:31:53.063765 7fd214bcfa80 Options.db_write_buffer_size: 0
+2021/03/14-01:31:53.063766 7fd214bcfa80 Options.write_buffer_manager: 0x2accb90
+2021/03/14-01:31:53.063767 7fd214bcfa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:31:53.063767 7fd214bcfa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:31:53.063768 7fd214bcfa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:31:53.063768 7fd214bcfa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:31:53.063769 7fd214bcfa80 Options.rate_limiter: (nil)
+2021/03/14-01:31:53.063770 7fd214bcfa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:31:53.063778 7fd214bcfa80 Options.wal_recovery_mode: 2
+2021/03/14-01:31:53.063778 7fd214bcfa80 Options.enable_thread_tracking: 0
+2021/03/14-01:31:53.063779 7fd214bcfa80 Options.enable_pipelined_write: 0
+2021/03/14-01:31:53.063780 7fd214bcfa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:31:53.063780 7fd214bcfa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:31:53.063781 7fd214bcfa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:31:53.063781 7fd214bcfa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:31:53.063782 7fd214bcfa80 Options.row_cache: None
+2021/03/14-01:31:53.063782 7fd214bcfa80 Options.wal_filter: None
+2021/03/14-01:31:53.063783 7fd214bcfa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:31:53.063784 7fd214bcfa80 Options.allow_ingest_behind: 0
+2021/03/14-01:31:53.063784 7fd214bcfa80 Options.preserve_deletes: 0
+2021/03/14-01:31:53.063785 7fd214bcfa80 Options.two_write_queues: 0
+2021/03/14-01:31:53.063785 7fd214bcfa80 Options.manual_wal_flush: 0
+2021/03/14-01:31:53.063786 7fd214bcfa80 Options.max_background_jobs: 16
+2021/03/14-01:31:53.063787 7fd214bcfa80 Options.max_background_compactions: -1
+2021/03/14-01:31:53.063788 7fd214bcfa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:31:53.063788 7fd214bcfa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:31:53.063789 7fd214bcfa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:31:53.063789 7fd214bcfa80 Options.max_total_wal_size: 0
+2021/03/14-01:31:53.063790 7fd214bcfa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:31:53.063791 7fd214bcfa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:31:53.063791 7fd214bcfa80 Options.max_open_files: -1
+2021/03/14-01:31:53.063792 7fd214bcfa80 Options.bytes_per_sync: 0
+2021/03/14-01:31:53.063792 7fd214bcfa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:31:53.063793 7fd214bcfa80 Options.compaction_readahead_size: 0
+2021/03/14-01:31:53.063793 7fd214bcfa80 Compression algorithms supported:
+2021/03/14-01:31:53.063794 7fd214bcfa80 Snappy supported: 1
+2021/03/14-01:31:53.063795 7fd214bcfa80 Zlib supported: 1
+2021/03/14-01:31:53.063795 7fd214bcfa80 Bzip supported: 1
+2021/03/14-01:31:53.063796 7fd214bcfa80 LZ4 supported: 1
+2021/03/14-01:31:53.063796 7fd214bcfa80 ZSTDNotFinal supported: 1
+2021/03/14-01:31:53.063800 7fd214bcfa80 ZSTD supported: 1
+2021/03/14-01:31:53.063803 7fd214bcfa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:31:53.063804 7fd214bcfa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:31:53.063896 7fd214bcfa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:31:53.063948 7fd214bcfa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:31:53.063950 7fd214bcfa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:31:53.063951 7fd214bcfa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:31:53.063951 7fd214bcfa80 Options.compaction_filter: None
+2021/03/14-01:31:53.063952 7fd214bcfa80 Options.compaction_filter_factory: None
+2021/03/14-01:31:53.063952 7fd214bcfa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:31:53.063953 7fd214bcfa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:31:53.063968 7fd214bcfa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2adc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2ac1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:31:53.063969 7fd214bcfa80 Options.write_buffer_size: 134217728
+2021/03/14-01:31:53.063970 7fd214bcfa80 Options.max_write_buffer_number: 6
+2021/03/14-01:31:53.063971 7fd214bcfa80 Options.compression[0]: NoCompression
+2021/03/14-01:31:53.063971 7fd214bcfa80 Options.compression[1]: NoCompression
+2021/03/14-01:31:53.063972 7fd214bcfa80 Options.compression[2]: Snappy
+2021/03/14-01:31:53.063973 7fd214bcfa80 Options.compression[3]: Snappy
+2021/03/14-01:31:53.063973 7fd214bcfa80 Options.compression[4]: Snappy
+2021/03/14-01:31:53.063974 7fd214bcfa80 Options.compression[5]: Snappy
+2021/03/14-01:31:53.063974 7fd214bcfa80 Options.compression[6]: Snappy
+2021/03/14-01:31:53.063975 7fd214bcfa80 Options.bottommost_compression: Disabled
+2021/03/14-01:31:53.063976 7fd214bcfa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:31:53.063976 7fd214bcfa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:31:53.063977 7fd214bcfa80 Options.num_levels: 7
+2021/03/14-01:31:53.063978 7fd214bcfa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:31:53.063978 7fd214bcfa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:31:53.063979 7fd214bcfa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:31:53.063979 7fd214bcfa80 Options.compression_opts.level: -1
+2021/03/14-01:31:53.063980 7fd214bcfa80 Options.compression_opts.strategy: 0
+2021/03/14-01:31:53.063980 7fd214bcfa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:31:53.063981 7fd214bcfa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:31:53.063982 7fd214bcfa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:31:53.063982 7fd214bcfa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:31:53.063983 7fd214bcfa80 Options.target_file_size_base: 67108864
+2021/03/14-01:31:53.063983 7fd214bcfa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:31:53.063984 7fd214bcfa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:31:53.063985 7fd214bcfa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:31:53.063985 7fd214bcfa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:31:53.063987 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:31:53.063994 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:31:53.063995 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:31:53.063995 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:31:53.063996 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:31:53.063996 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:31:53.063997 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:31:53.063998 7fd214bcfa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:31:53.063998 7fd214bcfa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:31:53.063999 7fd214bcfa80 Options.arena_block_size: 16777216
+2021/03/14-01:31:53.063999 7fd214bcfa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:31:53.064000 7fd214bcfa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:31:53.064000 7fd214bcfa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:31:53.064001 7fd214bcfa80 Options.disable_auto_compactions: 0
+2021/03/14-01:31:53.064003 7fd214bcfa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:31:53.064004 7fd214bcfa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:31:53.064004 7fd214bcfa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:31:53.064005 7fd214bcfa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:31:53.064005 7fd214bcfa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:31:53.064006 7fd214bcfa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:31:53.064007 7fd214bcfa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:31:53.064008 7fd214bcfa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:31:53.064008 7fd214bcfa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:31:53.064009 7fd214bcfa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:31:53.064009 7fd214bcfa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:31:53.064010 7fd214bcfa80 Options.table_properties_collectors:
+2021/03/14-01:31:53.064011 7fd214bcfa80 Options.inplace_update_support: 0
+2021/03/14-01:31:53.064011 7fd214bcfa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:31:53.064012 7fd214bcfa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:31:53.064013 7fd214bcfa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:31:53.064013 7fd214bcfa80 Options.bloom_locality: 0
+2021/03/14-01:31:53.064014 7fd214bcfa80 Options.max_successive_merges: 0
+2021/03/14-01:31:53.064014 7fd214bcfa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:31:53.064015 7fd214bcfa80 Options.paranoid_file_checks: 0
+2021/03/14-01:31:53.064015 7fd214bcfa80 Options.force_consistency_checks: 0
+2021/03/14-01:31:53.064016 7fd214bcfa80 Options.report_bg_io_stats: 0
+2021/03/14-01:31:53.064390 7fd214bcfa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:31:53.064392 7fd214bcfa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:31:53.064523 7fd214bcfa80 EVENT_LOG_v1 {"time_micros": 1615681913064514, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:31:53.064529 7fd214bcfa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:31:53.731866 7fd214bcfa80 EVENT_LOG_v1 {"time_micros": 1615681913731862, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681914435652 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681914435652
new file mode 100644
index 0000000..d6795b5
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681914435652
@@ -0,0 +1,186 @@
+2021/03/14-01:31:53.744654 7fd214bcfa80 RocksDB version: 5.11.3
+2021/03/14-01:31:53.744715 7fd214bcfa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:31:53.744717 7fd214bcfa80 Compile date Mar 13 2021
+2021/03/14-01:31:53.744719 7fd214bcfa80 DB SUMMARY
+2021/03/14-01:31:53.744844 7fd214bcfa80 CURRENT file: CURRENT
+2021/03/14-01:31:53.744845 7fd214bcfa80 IDENTITY file: IDENTITY
+2021/03/14-01:31:53.744857 7fd214bcfa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:31:53.744858 7fd214bcfa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:31:53.744859 7fd214bcfa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:31:53.744864 7fd214bcfa80 Options.error_if_exists: 0
+2021/03/14-01:31:53.744865 7fd214bcfa80 Options.create_if_missing: 1
+2021/03/14-01:31:53.744865 7fd214bcfa80 Options.paranoid_checks: 1
+2021/03/14-01:31:53.744866 7fd214bcfa80 Options.env: 0x7fd215589080
+2021/03/14-01:31:53.744867 7fd214bcfa80 Options.info_log: 0x2ae4ca0
+2021/03/14-01:31:53.744867 7fd214bcfa80 Options.max_file_opening_threads: 16
+2021/03/14-01:31:53.744868 7fd214bcfa80 Options.statistics: (nil)
+2021/03/14-01:31:53.744868 7fd214bcfa80 Options.use_fsync: 0
+2021/03/14-01:31:53.744869 7fd214bcfa80 Options.max_log_file_size: 0
+2021/03/14-01:31:53.744870 7fd214bcfa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:31:53.744870 7fd214bcfa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:31:53.744871 7fd214bcfa80 Options.keep_log_file_num: 1000
+2021/03/14-01:31:53.744871 7fd214bcfa80 Options.recycle_log_file_num: 0
+2021/03/14-01:31:53.744872 7fd214bcfa80 Options.allow_fallocate: 1
+2021/03/14-01:31:53.744873 7fd214bcfa80 Options.allow_mmap_reads: 0
+2021/03/14-01:31:53.744873 7fd214bcfa80 Options.allow_mmap_writes: 0
+2021/03/14-01:31:53.744874 7fd214bcfa80 Options.use_direct_reads: 0
+2021/03/14-01:31:53.744874 7fd214bcfa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:31:53.744875 7fd214bcfa80 Options.create_missing_column_families: 0
+2021/03/14-01:31:53.744875 7fd214bcfa80 Options.db_log_dir:
+2021/03/14-01:31:53.744876 7fd214bcfa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:31:53.744876 7fd214bcfa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:31:53.744877 7fd214bcfa80 Options.max_subcompactions: 1
+2021/03/14-01:31:53.744877 7fd214bcfa80 Options.max_background_flushes: -1
+2021/03/14-01:31:53.744878 7fd214bcfa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:31:53.744879 7fd214bcfa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:31:53.744879 7fd214bcfa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:31:53.744880 7fd214bcfa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:31:53.744880 7fd214bcfa80 Options.advise_random_on_open: 1
+2021/03/14-01:31:53.744881 7fd214bcfa80 Options.db_write_buffer_size: 0
+2021/03/14-01:31:53.744881 7fd214bcfa80 Options.write_buffer_manager: 0x2accb90
+2021/03/14-01:31:53.744882 7fd214bcfa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:31:53.744883 7fd214bcfa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:31:53.744883 7fd214bcfa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:31:53.744884 7fd214bcfa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:31:53.744884 7fd214bcfa80 Options.rate_limiter: (nil)
+2021/03/14-01:31:53.744885 7fd214bcfa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:31:53.744893 7fd214bcfa80 Options.wal_recovery_mode: 2
+2021/03/14-01:31:53.744894 7fd214bcfa80 Options.enable_thread_tracking: 0
+2021/03/14-01:31:53.744894 7fd214bcfa80 Options.enable_pipelined_write: 0
+2021/03/14-01:31:53.744895 7fd214bcfa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:31:53.744896 7fd214bcfa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:31:53.744896 7fd214bcfa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:31:53.744897 7fd214bcfa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:31:53.744897 7fd214bcfa80 Options.row_cache: None
+2021/03/14-01:31:53.744898 7fd214bcfa80 Options.wal_filter: None
+2021/03/14-01:31:53.744898 7fd214bcfa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:31:53.744899 7fd214bcfa80 Options.allow_ingest_behind: 0
+2021/03/14-01:31:53.744899 7fd214bcfa80 Options.preserve_deletes: 0
+2021/03/14-01:31:53.744900 7fd214bcfa80 Options.two_write_queues: 0
+2021/03/14-01:31:53.744900 7fd214bcfa80 Options.manual_wal_flush: 0
+2021/03/14-01:31:53.744902 7fd214bcfa80 Options.max_background_jobs: 16
+2021/03/14-01:31:53.744902 7fd214bcfa80 Options.max_background_compactions: -1
+2021/03/14-01:31:53.744903 7fd214bcfa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:31:53.744903 7fd214bcfa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:31:53.744904 7fd214bcfa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:31:53.744905 7fd214bcfa80 Options.max_total_wal_size: 0
+2021/03/14-01:31:53.744905 7fd214bcfa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:31:53.744906 7fd214bcfa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:31:53.744906 7fd214bcfa80 Options.max_open_files: -1
+2021/03/14-01:31:53.744907 7fd214bcfa80 Options.bytes_per_sync: 0
+2021/03/14-01:31:53.744907 7fd214bcfa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:31:53.744908 7fd214bcfa80 Options.compaction_readahead_size: 0
+2021/03/14-01:31:53.744908 7fd214bcfa80 Compression algorithms supported:
+2021/03/14-01:31:53.744909 7fd214bcfa80 Snappy supported: 1
+2021/03/14-01:31:53.744910 7fd214bcfa80 Zlib supported: 1
+2021/03/14-01:31:53.744910 7fd214bcfa80 Bzip supported: 1
+2021/03/14-01:31:53.744911 7fd214bcfa80 LZ4 supported: 1
+2021/03/14-01:31:53.744911 7fd214bcfa80 ZSTDNotFinal supported: 1
+2021/03/14-01:31:53.744915 7fd214bcfa80 ZSTD supported: 1
+2021/03/14-01:31:53.744918 7fd214bcfa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:31:53.744919 7fd214bcfa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:31:53.745012 7fd214bcfa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:31:53.745065 7fd214bcfa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:31:53.745066 7fd214bcfa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:31:53.745067 7fd214bcfa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:31:53.745068 7fd214bcfa80 Options.compaction_filter: None
+2021/03/14-01:31:53.745068 7fd214bcfa80 Options.compaction_filter_factory: None
+2021/03/14-01:31:53.745069 7fd214bcfa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:31:53.745070 7fd214bcfa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:31:53.745085 7fd214bcfa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2adc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2ac1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:31:53.745085 7fd214bcfa80 Options.write_buffer_size: 134217728
+2021/03/14-01:31:53.745086 7fd214bcfa80 Options.max_write_buffer_number: 6
+2021/03/14-01:31:53.745087 7fd214bcfa80 Options.compression[0]: NoCompression
+2021/03/14-01:31:53.745088 7fd214bcfa80 Options.compression[1]: NoCompression
+2021/03/14-01:31:53.745088 7fd214bcfa80 Options.compression[2]: Snappy
+2021/03/14-01:31:53.745089 7fd214bcfa80 Options.compression[3]: Snappy
+2021/03/14-01:31:53.745089 7fd214bcfa80 Options.compression[4]: Snappy
+2021/03/14-01:31:53.745090 7fd214bcfa80 Options.compression[5]: Snappy
+2021/03/14-01:31:53.745090 7fd214bcfa80 Options.compression[6]: Snappy
+2021/03/14-01:31:53.745091 7fd214bcfa80 Options.bottommost_compression: Disabled
+2021/03/14-01:31:53.745092 7fd214bcfa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:31:53.745092 7fd214bcfa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:31:53.745093 7fd214bcfa80 Options.num_levels: 7
+2021/03/14-01:31:53.745094 7fd214bcfa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:31:53.745094 7fd214bcfa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:31:53.745095 7fd214bcfa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:31:53.745095 7fd214bcfa80 Options.compression_opts.level: -1
+2021/03/14-01:31:53.745096 7fd214bcfa80 Options.compression_opts.strategy: 0
+2021/03/14-01:31:53.745097 7fd214bcfa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:31:53.745097 7fd214bcfa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:31:53.745098 7fd214bcfa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:31:53.745098 7fd214bcfa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:31:53.745099 7fd214bcfa80 Options.target_file_size_base: 67108864
+2021/03/14-01:31:53.745099 7fd214bcfa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:31:53.745100 7fd214bcfa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:31:53.745100 7fd214bcfa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:31:53.745101 7fd214bcfa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:31:53.745103 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:31:53.745110 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:31:53.745111 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:31:53.745111 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:31:53.745112 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:31:53.745113 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:31:53.745113 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:31:53.745114 7fd214bcfa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:31:53.745114 7fd214bcfa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:31:53.745115 7fd214bcfa80 Options.arena_block_size: 16777216
+2021/03/14-01:31:53.745115 7fd214bcfa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:31:53.745116 7fd214bcfa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:31:53.745117 7fd214bcfa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:31:53.745117 7fd214bcfa80 Options.disable_auto_compactions: 0
+2021/03/14-01:31:53.745119 7fd214bcfa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:31:53.745120 7fd214bcfa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:31:53.745120 7fd214bcfa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:31:53.745121 7fd214bcfa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:31:53.745121 7fd214bcfa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:31:53.745122 7fd214bcfa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:31:53.745122 7fd214bcfa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:31:53.745124 7fd214bcfa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:31:53.745124 7fd214bcfa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:31:53.745125 7fd214bcfa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:31:53.745125 7fd214bcfa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:31:53.745126 7fd214bcfa80 Options.table_properties_collectors:
+2021/03/14-01:31:53.745126 7fd214bcfa80 Options.inplace_update_support: 0
+2021/03/14-01:31:53.745127 7fd214bcfa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:31:53.745128 7fd214bcfa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:31:53.745128 7fd214bcfa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:31:53.745129 7fd214bcfa80 Options.bloom_locality: 0
+2021/03/14-01:31:53.745130 7fd214bcfa80 Options.max_successive_merges: 0
+2021/03/14-01:31:53.745130 7fd214bcfa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:31:53.745131 7fd214bcfa80 Options.paranoid_file_checks: 0
+2021/03/14-01:31:53.745131 7fd214bcfa80 Options.force_consistency_checks: 0
+2021/03/14-01:31:53.745132 7fd214bcfa80 Options.report_bg_io_stats: 0
+2021/03/14-01:31:53.745503 7fd214bcfa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:31:53.745506 7fd214bcfa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:31:53.745638 7fd214bcfa80 EVENT_LOG_v1 {"time_micros": 1615681913745629, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:31:53.745644 7fd214bcfa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:31:54.423100 7fd214bcfa80 EVENT_LOG_v1 {"time_micros": 1615681914423096, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681921652646 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681921652646
new file mode 100644
index 0000000..86728c2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681921652646
@@ -0,0 +1,186 @@
+2021/03/14-01:31:54.436024 7fd214bcfa80 RocksDB version: 5.11.3
+2021/03/14-01:31:54.436083 7fd214bcfa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:31:54.436085 7fd214bcfa80 Compile date Mar 13 2021
+2021/03/14-01:31:54.436087 7fd214bcfa80 DB SUMMARY
+2021/03/14-01:31:54.436212 7fd214bcfa80 CURRENT file: CURRENT
+2021/03/14-01:31:54.436213 7fd214bcfa80 IDENTITY file: IDENTITY
+2021/03/14-01:31:54.436225 7fd214bcfa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:31:54.436226 7fd214bcfa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:31:54.436227 7fd214bcfa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:31:54.436231 7fd214bcfa80 Options.error_if_exists: 0
+2021/03/14-01:31:54.436232 7fd214bcfa80 Options.create_if_missing: 1
+2021/03/14-01:31:54.436233 7fd214bcfa80 Options.paranoid_checks: 1
+2021/03/14-01:31:54.436233 7fd214bcfa80 Options.env: 0x7fd215589080
+2021/03/14-01:31:54.436234 7fd214bcfa80 Options.info_log: 0x2ae4ca0
+2021/03/14-01:31:54.436235 7fd214bcfa80 Options.max_file_opening_threads: 16
+2021/03/14-01:31:54.436235 7fd214bcfa80 Options.statistics: (nil)
+2021/03/14-01:31:54.436236 7fd214bcfa80 Options.use_fsync: 0
+2021/03/14-01:31:54.436236 7fd214bcfa80 Options.max_log_file_size: 0
+2021/03/14-01:31:54.436237 7fd214bcfa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:31:54.436244 7fd214bcfa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:31:54.436245 7fd214bcfa80 Options.keep_log_file_num: 1000
+2021/03/14-01:31:54.436245 7fd214bcfa80 Options.recycle_log_file_num: 0
+2021/03/14-01:31:54.436246 7fd214bcfa80 Options.allow_fallocate: 1
+2021/03/14-01:31:54.436246 7fd214bcfa80 Options.allow_mmap_reads: 0
+2021/03/14-01:31:54.436247 7fd214bcfa80 Options.allow_mmap_writes: 0
+2021/03/14-01:31:54.436247 7fd214bcfa80 Options.use_direct_reads: 0
+2021/03/14-01:31:54.436248 7fd214bcfa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:31:54.436248 7fd214bcfa80 Options.create_missing_column_families: 0
+2021/03/14-01:31:54.436249 7fd214bcfa80 Options.db_log_dir:
+2021/03/14-01:31:54.436250 7fd214bcfa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:31:54.436250 7fd214bcfa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:31:54.436251 7fd214bcfa80 Options.max_subcompactions: 1
+2021/03/14-01:31:54.436251 7fd214bcfa80 Options.max_background_flushes: -1
+2021/03/14-01:31:54.436252 7fd214bcfa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:31:54.436253 7fd214bcfa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:31:54.436253 7fd214bcfa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:31:54.436254 7fd214bcfa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:31:54.436254 7fd214bcfa80 Options.advise_random_on_open: 1
+2021/03/14-01:31:54.436255 7fd214bcfa80 Options.db_write_buffer_size: 0
+2021/03/14-01:31:54.436255 7fd214bcfa80 Options.write_buffer_manager: 0x2accb90
+2021/03/14-01:31:54.436256 7fd214bcfa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:31:54.436257 7fd214bcfa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:31:54.436257 7fd214bcfa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:31:54.436258 7fd214bcfa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:31:54.436258 7fd214bcfa80 Options.rate_limiter: (nil)
+2021/03/14-01:31:54.436260 7fd214bcfa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:31:54.436269 7fd214bcfa80 Options.wal_recovery_mode: 2
+2021/03/14-01:31:54.436270 7fd214bcfa80 Options.enable_thread_tracking: 0
+2021/03/14-01:31:54.436270 7fd214bcfa80 Options.enable_pipelined_write: 0
+2021/03/14-01:31:54.436271 7fd214bcfa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:31:54.436271 7fd214bcfa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:31:54.436272 7fd214bcfa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:31:54.436273 7fd214bcfa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:31:54.436273 7fd214bcfa80 Options.row_cache: None
+2021/03/14-01:31:54.436274 7fd214bcfa80 Options.wal_filter: None
+2021/03/14-01:31:54.436274 7fd214bcfa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:31:54.436275 7fd214bcfa80 Options.allow_ingest_behind: 0
+2021/03/14-01:31:54.436275 7fd214bcfa80 Options.preserve_deletes: 0
+2021/03/14-01:31:54.436276 7fd214bcfa80 Options.two_write_queues: 0
+2021/03/14-01:31:54.436276 7fd214bcfa80 Options.manual_wal_flush: 0
+2021/03/14-01:31:54.436278 7fd214bcfa80 Options.max_background_jobs: 16
+2021/03/14-01:31:54.436278 7fd214bcfa80 Options.max_background_compactions: -1
+2021/03/14-01:31:54.436279 7fd214bcfa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:31:54.436279 7fd214bcfa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:31:54.436280 7fd214bcfa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:31:54.436280 7fd214bcfa80 Options.max_total_wal_size: 0
+2021/03/14-01:31:54.436281 7fd214bcfa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:31:54.436282 7fd214bcfa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:31:54.436282 7fd214bcfa80 Options.max_open_files: -1
+2021/03/14-01:31:54.436283 7fd214bcfa80 Options.bytes_per_sync: 0
+2021/03/14-01:31:54.436283 7fd214bcfa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:31:54.436284 7fd214bcfa80 Options.compaction_readahead_size: 0
+2021/03/14-01:31:54.436284 7fd214bcfa80 Compression algorithms supported:
+2021/03/14-01:31:54.436285 7fd214bcfa80 Snappy supported: 1
+2021/03/14-01:31:54.436286 7fd214bcfa80 Zlib supported: 1
+2021/03/14-01:31:54.436286 7fd214bcfa80 Bzip supported: 1
+2021/03/14-01:31:54.436287 7fd214bcfa80 LZ4 supported: 1
+2021/03/14-01:31:54.436287 7fd214bcfa80 ZSTDNotFinal supported: 1
+2021/03/14-01:31:54.436291 7fd214bcfa80 ZSTD supported: 1
+2021/03/14-01:31:54.436295 7fd214bcfa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:31:54.436296 7fd214bcfa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:31:54.436387 7fd214bcfa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:31:54.436439 7fd214bcfa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:31:54.436441 7fd214bcfa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:31:54.436442 7fd214bcfa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:31:54.436442 7fd214bcfa80 Options.compaction_filter: None
+2021/03/14-01:31:54.436443 7fd214bcfa80 Options.compaction_filter_factory: None
+2021/03/14-01:31:54.436444 7fd214bcfa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:31:54.436444 7fd214bcfa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:31:54.436459 7fd214bcfa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2adc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2ac1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:31:54.436460 7fd214bcfa80 Options.write_buffer_size: 134217728
+2021/03/14-01:31:54.436461 7fd214bcfa80 Options.max_write_buffer_number: 6
+2021/03/14-01:31:54.436461 7fd214bcfa80 Options.compression[0]: NoCompression
+2021/03/14-01:31:54.436462 7fd214bcfa80 Options.compression[1]: NoCompression
+2021/03/14-01:31:54.436463 7fd214bcfa80 Options.compression[2]: Snappy
+2021/03/14-01:31:54.436463 7fd214bcfa80 Options.compression[3]: Snappy
+2021/03/14-01:31:54.436464 7fd214bcfa80 Options.compression[4]: Snappy
+2021/03/14-01:31:54.436464 7fd214bcfa80 Options.compression[5]: Snappy
+2021/03/14-01:31:54.436465 7fd214bcfa80 Options.compression[6]: Snappy
+2021/03/14-01:31:54.436466 7fd214bcfa80 Options.bottommost_compression: Disabled
+2021/03/14-01:31:54.436466 7fd214bcfa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:31:54.436467 7fd214bcfa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:31:54.436467 7fd214bcfa80 Options.num_levels: 7
+2021/03/14-01:31:54.436468 7fd214bcfa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:31:54.436469 7fd214bcfa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:31:54.436469 7fd214bcfa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:31:54.436470 7fd214bcfa80 Options.compression_opts.level: -1
+2021/03/14-01:31:54.436470 7fd214bcfa80 Options.compression_opts.strategy: 0
+2021/03/14-01:31:54.436471 7fd214bcfa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:31:54.436471 7fd214bcfa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:31:54.436472 7fd214bcfa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:31:54.436473 7fd214bcfa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:31:54.436473 7fd214bcfa80 Options.target_file_size_base: 67108864
+2021/03/14-01:31:54.436474 7fd214bcfa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:31:54.436474 7fd214bcfa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:31:54.436475 7fd214bcfa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:31:54.436476 7fd214bcfa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:31:54.436477 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:31:54.436485 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:31:54.436486 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:31:54.436486 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:31:54.436487 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:31:54.436487 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:31:54.436488 7fd214bcfa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:31:54.436488 7fd214bcfa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:31:54.436489 7fd214bcfa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:31:54.436490 7fd214bcfa80 Options.arena_block_size: 16777216
+2021/03/14-01:31:54.436490 7fd214bcfa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:31:54.436491 7fd214bcfa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:31:54.436491 7fd214bcfa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:31:54.436492 7fd214bcfa80 Options.disable_auto_compactions: 0
+2021/03/14-01:31:54.436494 7fd214bcfa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:31:54.436494 7fd214bcfa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:31:54.436495 7fd214bcfa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:31:54.436495 7fd214bcfa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:31:54.436496 7fd214bcfa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:31:54.436497 7fd214bcfa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:31:54.436497 7fd214bcfa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:31:54.436498 7fd214bcfa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:31:54.436499 7fd214bcfa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:31:54.436499 7fd214bcfa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:31:54.436500 7fd214bcfa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:31:54.436501 7fd214bcfa80 Options.table_properties_collectors:
+2021/03/14-01:31:54.436501 7fd214bcfa80 Options.inplace_update_support: 0
+2021/03/14-01:31:54.436502 7fd214bcfa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:31:54.436502 7fd214bcfa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:31:54.436503 7fd214bcfa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:31:54.436504 7fd214bcfa80 Options.bloom_locality: 0
+2021/03/14-01:31:54.436504 7fd214bcfa80 Options.max_successive_merges: 0
+2021/03/14-01:31:54.436505 7fd214bcfa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:31:54.436505 7fd214bcfa80 Options.paranoid_file_checks: 0
+2021/03/14-01:31:54.436506 7fd214bcfa80 Options.force_consistency_checks: 0
+2021/03/14-01:31:54.436506 7fd214bcfa80 Options.report_bg_io_stats: 0
+2021/03/14-01:31:54.436878 7fd214bcfa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:31:54.436881 7fd214bcfa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:31:54.437015 7fd214bcfa80 EVENT_LOG_v1 {"time_micros": 1615681914437005, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:31:54.437020 7fd214bcfa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:31:55.106383 7fd214bcfa80 EVENT_LOG_v1 {"time_micros": 1615681915106379, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681922326549 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681922326549
new file mode 100644
index 0000000..2a30f99
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681922326549
@@ -0,0 +1,186 @@
+2021/03/14-01:32:01.653313 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:32:01.653371 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:32:01.653372 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:32:01.653375 7ffff7156a80 DB SUMMARY
+2021/03/14-01:32:01.653496 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:32:01.653497 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:32:01.653509 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:32:01.653510 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:32:01.653511 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:32:01.653515 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:32:01.653516 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:32:01.653516 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:32:01.653517 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:32:01.653518 7ffff7156a80 Options.info_log: 0xfb2fa0
+2021/03/14-01:32:01.653518 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:32:01.653519 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:32:01.653520 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:32:01.653520 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:32:01.653521 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:32:01.653521 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:32:01.653522 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:32:01.653522 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:32:01.653523 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:32:01.653524 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:32:01.653524 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:32:01.653525 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:32:01.653525 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:32:01.653526 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:32:01.653526 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:32:01.653527 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:32:01.653528 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:32:01.653528 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:32:01.653529 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:32:01.653529 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:32:01.653530 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:32:01.653530 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:32:01.653531 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:32:01.653532 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:32:01.653532 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:32:01.653533 7ffff7156a80 Options.write_buffer_manager: 0xf9aeb0
+2021/03/14-01:32:01.653533 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:32:01.653534 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:32:01.653534 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:32:01.653535 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:32:01.653535 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:32:01.653537 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:32:01.653545 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:32:01.653545 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:32:01.653546 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:32:01.653546 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:32:01.653547 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:32:01.653548 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:32:01.653548 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:32:01.653549 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:32:01.653549 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:32:01.653550 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:32:01.653550 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:32:01.653551 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:32:01.653551 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:32:01.653552 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:32:01.653553 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:32:01.653554 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:32:01.653554 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:32:01.653555 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:32:01.653555 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:32:01.653556 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:32:01.653557 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:32:01.653557 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:32:01.653558 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:32:01.653558 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:32:01.653559 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:32:01.653559 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:32:01.653560 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:32:01.653561 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:32:01.653561 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:32:01.653562 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:32:01.653562 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:32:01.653563 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:32:01.653565 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:32:01.653567 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:32:01.653569 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:32:01.653660 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:32:01.653707 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:32:01.653709 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:32:01.653709 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:32:01.653710 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:32:01.653711 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:32:01.653711 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:32:01.653712 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:32:01.653729 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfaa840)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xf8ff40
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:32:01.653736 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:32:01.653737 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:32:01.653737 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:32:01.653738 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:32:01.653739 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:32:01.653739 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:32:01.653740 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:32:01.653740 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:32:01.653741 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:32:01.653742 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:32:01.653742 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:32:01.653743 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:32:01.653743 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:32:01.653744 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:32:01.653745 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:32:01.653745 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:32:01.653746 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:32:01.653746 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:32:01.653747 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:32:01.653748 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:32:01.653748 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:32:01.653749 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:32:01.653749 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:32:01.653750 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:32:01.653750 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:32:01.653751 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:32:01.653752 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:32:01.653753 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:32:01.653760 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:32:01.653761 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:32:01.653762 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:32:01.653762 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:32:01.653763 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:32:01.653763 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:32:01.653764 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:32:01.653765 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:32:01.653765 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:32:01.653766 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:32:01.653766 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:32:01.653767 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:32:01.653768 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:32:01.653768 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:32:01.653769 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:32:01.653770 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:32:01.653770 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:32:01.653771 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:32:01.653771 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:32:01.653772 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:32:01.653773 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:32:01.653773 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:32:01.653774 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:32:01.653775 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:32:01.653775 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:32:01.653776 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:32:01.653776 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:32:01.653777 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:32:01.653778 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:32:01.653778 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:32:01.653779 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:32:01.653779 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:32:01.653780 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:32:01.653781 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:32:01.653781 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:32:01.655322 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:32:01.655326 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:32:01.655463 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615681921655455, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:32:01.655469 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:32:02.320403 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681922979933 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681922979933
new file mode 100644
index 0000000..6d616a1
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681922979933
@@ -0,0 +1,186 @@
+2021/03/14-01:32:02.327361 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:32:02.327387 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:32:02.327389 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:32:02.327390 7ffff7156a80 DB SUMMARY
+2021/03/14-01:32:02.327500 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:32:02.327501 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:32:02.327513 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:32:02.327514 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:32:02.327515 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:32:02.327518 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:32:02.327519 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:32:02.327520 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:32:02.327520 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:32:02.327521 7ffff7156a80 Options.info_log: 0xfc6120
+2021/03/14-01:32:02.327521 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:32:02.327522 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:32:02.327523 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:32:02.327523 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:32:02.327524 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:32:02.327524 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:32:02.327525 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:32:02.327525 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:32:02.327526 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:32:02.327526 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:32:02.327527 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:32:02.327528 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:32:02.327528 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:32:02.327529 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:32:02.327529 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:32:02.327530 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:32:02.327530 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:32:02.327531 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:32:02.327531 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:32:02.327532 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:32:02.327532 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:32:02.327533 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:32:02.327534 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:32:02.327534 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:32:02.327535 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:32:02.327535 7ffff7156a80 Options.write_buffer_manager: 0xfc6020
+2021/03/14-01:32:02.327536 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:32:02.327536 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:32:02.327537 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:32:02.327537 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:32:02.327538 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:32:02.327538 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:32:02.327545 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:32:02.327546 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:32:02.327547 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:32:02.327547 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:32:02.327548 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:32:02.327548 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:32:02.327549 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:32:02.327549 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:32:02.327550 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:32:02.327550 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:32:02.327551 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:32:02.327551 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:32:02.327552 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:32:02.327552 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:32:02.327553 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:32:02.327553 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:32:02.327554 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:32:02.327554 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:32:02.327555 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:32:02.327556 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:32:02.327556 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:32:02.327557 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:32:02.327557 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:32:02.327558 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:32:02.327558 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:32:02.327559 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:32:02.327559 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:32:02.327560 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:32:02.327560 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:32:02.327561 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:32:02.327562 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:32:02.327562 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:32:02.327563 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:32:02.327564 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:32:02.327565 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:32:02.327671 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:32:02.327706 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:32:02.327708 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:32:02.327708 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:32:02.327709 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:32:02.327709 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:32:02.327710 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:32:02.327711 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:32:02.327727 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfc5650)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xfcae50
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:32:02.327728 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:32:02.327728 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:32:02.327729 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:32:02.327730 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:32:02.327730 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:32:02.327731 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:32:02.327732 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:32:02.327732 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:32:02.327733 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:32:02.327733 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:32:02.327734 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:32:02.327735 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:32:02.327735 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:32:02.327736 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:32:02.327736 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:32:02.327737 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:32:02.327737 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:32:02.327738 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:32:02.327738 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:32:02.327739 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:32:02.327739 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:32:02.327740 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:32:02.327740 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:32:02.327741 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:32:02.327742 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:32:02.327742 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:32:02.327743 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:32:02.327744 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:32:02.327751 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:32:02.327752 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:32:02.327752 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:32:02.327753 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:32:02.327753 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:32:02.327754 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:32:02.327755 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:32:02.327755 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:32:02.327756 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:32:02.327756 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:32:02.327757 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:32:02.327757 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:32:02.327758 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:32:02.327759 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:32:02.327760 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:32:02.327760 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:32:02.327761 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:32:02.327761 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:32:02.327762 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:32:02.327762 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:32:02.327763 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:32:02.327764 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:32:02.327764 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:32:02.327765 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:32:02.327765 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:32:02.327766 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:32:02.327766 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:32:02.327767 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:32:02.327768 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:32:02.327768 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:32:02.327769 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:32:02.327769 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:32:02.327770 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:32:02.327770 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:32:02.327771 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:32:02.329269 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:32:02.329273 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:32:02.329383 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615681922329381, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:32:02.329386 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:32:02.973511 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615681923649051 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681923649051
new file mode 100644
index 0000000..dfa0610
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615681923649051
@@ -0,0 +1,186 @@
+2021/03/14-01:32:02.980673 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:32:02.980705 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:32:02.980707 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:32:02.980708 7ffff7156a80 DB SUMMARY
+2021/03/14-01:32:02.980830 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:32:02.980831 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:32:02.980844 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:32:02.980845 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:32:02.980846 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:32:02.980850 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:32:02.980850 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:32:02.980851 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:32:02.980852 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:32:02.980852 7ffff7156a80 Options.info_log: 0xff4af0
+2021/03/14-01:32:02.980853 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:32:02.980854 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:32:02.980854 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:32:02.980855 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:32:02.980855 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:32:02.980856 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:32:02.980857 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:32:02.980857 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:32:02.980858 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:32:02.980859 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:32:02.980859 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:32:02.980860 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:32:02.980860 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:32:02.980861 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:32:02.980861 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:32:02.980862 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:32:02.980863 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:32:02.980863 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:32:02.980864 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:32:02.980864 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:32:02.980865 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:32:02.980866 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:32:02.980866 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:32:02.980867 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:32:02.980867 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:32:02.980868 7ffff7156a80 Options.write_buffer_manager: 0xff78d0
+2021/03/14-01:32:02.980868 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:32:02.980869 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:32:02.980870 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:32:02.980870 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:32:02.980871 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:32:02.980871 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:32:02.980879 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:32:02.980880 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:32:02.980880 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:32:02.980881 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:32:02.980882 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:32:02.980882 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:32:02.980883 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:32:02.980883 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:32:02.980884 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:32:02.980885 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:32:02.980885 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:32:02.980886 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:32:02.980886 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:32:02.980887 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:32:02.980887 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:32:02.980888 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:32:02.980888 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:32:02.980889 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:32:02.980890 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:32:02.980890 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:32:02.980891 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:32:02.980891 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:32:02.980892 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:32:02.980893 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:32:02.980893 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:32:02.980894 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:32:02.980894 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:32:02.980895 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:32:02.980896 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:32:02.980896 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:32:02.980897 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:32:02.980897 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:32:02.980898 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:32:02.980900 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:32:02.980901 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:32:02.980965 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:32:02.981004 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:32:02.981005 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:32:02.981006 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:32:02.981006 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:32:02.981007 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:32:02.981007 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:32:02.981008 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:32:02.981023 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xff6f30)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xffbcd0
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:32:02.981024 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:32:02.981025 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:32:02.981025 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:32:02.981026 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:32:02.981027 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:32:02.981027 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:32:02.981028 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:32:02.981029 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:32:02.981029 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:32:02.981030 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:32:02.981031 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:32:02.981031 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:32:02.981032 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:32:02.981032 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:32:02.981033 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:32:02.981033 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:32:02.981034 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:32:02.981035 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:32:02.981035 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:32:02.981036 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:32:02.981036 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:32:02.981037 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:32:02.981037 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:32:02.981038 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:32:02.981039 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:32:02.981039 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:32:02.981040 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:32:02.981041 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:32:02.981049 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:32:02.981050 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:32:02.981050 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:32:02.981051 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:32:02.981051 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:32:02.981052 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:32:02.981052 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:32:02.981053 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:32:02.981054 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:32:02.981054 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:32:02.981055 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:32:02.981056 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:32:02.981056 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:32:02.981057 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:32:02.981058 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:32:02.981059 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:32:02.981059 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:32:02.981060 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:32:02.981060 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:32:02.981061 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:32:02.981062 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:32:02.981062 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:32:02.981063 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:32:02.981063 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:32:02.981064 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:32:02.981065 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:32:02.981065 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:32:02.981066 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:32:02.981067 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:32:02.981067 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:32:02.981068 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:32:02.981068 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:32:02.981069 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:32:02.981070 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:32:02.981070 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:32:02.982817 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:32:02.982820 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:32:02.982940 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615681922982938, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:32:02.982943 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:32:03.642585 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682008643686 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682008643686
new file mode 100644
index 0000000..8e3ddb1
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682008643686
@@ -0,0 +1,186 @@
+2021/03/14-01:32:03.650770 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:32:03.650802 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:32:03.650803 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:32:03.650804 7ffff7156a80 DB SUMMARY
+2021/03/14-01:32:03.650927 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:32:03.650928 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:32:03.650941 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:32:03.650942 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:32:03.650943 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:32:03.650947 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:32:03.650947 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:32:03.650948 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:32:03.650949 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:32:03.650949 7ffff7156a80 Options.info_log: 0x1024820
+2021/03/14-01:32:03.650950 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:32:03.650950 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:32:03.650951 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:32:03.650952 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:32:03.650952 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:32:03.650953 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:32:03.650953 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:32:03.650954 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:32:03.650955 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:32:03.650955 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:32:03.650956 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:32:03.650956 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:32:03.650957 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:32:03.650958 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:32:03.650958 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:32:03.650959 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:32:03.650959 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:32:03.650960 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:32:03.650960 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:32:03.650961 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:32:03.650962 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:32:03.650962 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:32:03.650963 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:32:03.650963 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:32:03.650964 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:32:03.650965 7ffff7156a80 Options.write_buffer_manager: 0x1045e40
+2021/03/14-01:32:03.650965 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:32:03.650966 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:32:03.650966 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:32:03.650967 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:32:03.650967 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:32:03.650968 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:32:03.650976 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:32:03.650976 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:32:03.650977 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:32:03.650977 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:32:03.650978 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:32:03.650978 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:32:03.650979 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:32:03.650980 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:32:03.650980 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:32:03.650981 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:32:03.650981 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:32:03.650982 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:32:03.650983 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:32:03.650983 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:32:03.650984 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:32:03.650984 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:32:03.650985 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:32:03.650985 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:32:03.650986 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:32:03.650987 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:32:03.650987 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:32:03.650988 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:32:03.650988 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:32:03.650989 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:32:03.650989 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:32:03.650990 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:32:03.650991 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:32:03.650991 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:32:03.650992 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:32:03.650992 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:32:03.650993 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:32:03.650993 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:32:03.650994 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:32:03.650996 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:32:03.650997 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:32:03.651059 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:32:03.651097 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:32:03.651098 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:32:03.651099 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:32:03.651099 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:32:03.651100 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:32:03.651100 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:32:03.651101 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:32:03.651115 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10279c0)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x102ba30
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:32:03.651116 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:32:03.651117 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:32:03.651118 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:32:03.651118 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:32:03.651119 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:32:03.651119 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:32:03.651120 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:32:03.651121 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:32:03.651121 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:32:03.651122 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:32:03.651123 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:32:03.651123 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:32:03.651124 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:32:03.651124 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:32:03.651125 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:32:03.651126 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:32:03.651126 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:32:03.651127 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:32:03.651127 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:32:03.651128 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:32:03.651129 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:32:03.651129 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:32:03.651130 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:32:03.651130 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:32:03.651131 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:32:03.651132 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:32:03.651132 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:32:03.651134 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:32:03.651141 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:32:03.651142 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:32:03.651142 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:32:03.651143 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:32:03.651143 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:32:03.651144 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:32:03.651144 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:32:03.651145 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:32:03.651146 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:32:03.651146 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:32:03.651147 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:32:03.651147 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:32:03.651148 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:32:03.651149 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:32:03.651150 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:32:03.651150 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:32:03.651151 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:32:03.651152 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:32:03.651152 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:32:03.651153 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:32:03.651154 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:32:03.651154 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:32:03.651155 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:32:03.651155 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:32:03.651156 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:32:03.651156 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:32:03.651157 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:32:03.651158 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:32:03.651158 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:32:03.651159 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:32:03.651160 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:32:03.651160 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:32:03.651161 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:32:03.651161 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:32:03.651162 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:32:03.653281 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:32:03.653284 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:32:03.653394 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615681923653392, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:32:03.653397 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:32:04.321498 7ffff7156a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682009330924 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682009330924
new file mode 100644
index 0000000..a3d97a6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682009330924
@@ -0,0 +1,186 @@
+2021/03/14-01:33:28.644326 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:33:28.644387 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:33:28.644388 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:33:28.644391 7ffff7156a80 DB SUMMARY
+2021/03/14-01:33:28.644525 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:33:28.644526 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:33:28.644540 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:33:28.644541 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:33:28.644542 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:33:28.644547 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:33:28.644548 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:33:28.644548 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:33:28.644549 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:33:28.644549 7ffff7156a80 Options.info_log: 0xfb2fa0
+2021/03/14-01:33:28.644550 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:33:28.644551 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:33:28.644551 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:33:28.644552 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:33:28.644552 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:33:28.644553 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:33:28.644554 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:33:28.644554 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:33:28.644555 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:33:28.644556 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:33:28.644556 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:33:28.644557 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:33:28.644557 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:33:28.644558 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:33:28.644558 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:33:28.644559 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:33:28.644559 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:33:28.644560 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:33:28.644560 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:33:28.644561 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:33:28.644562 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:33:28.644562 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:33:28.644563 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:33:28.644563 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:33:28.644564 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:33:28.644564 7ffff7156a80 Options.write_buffer_manager: 0xf9aeb0
+2021/03/14-01:33:28.644565 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:33:28.644566 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:33:28.644566 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:33:28.644567 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:33:28.644567 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:33:28.644569 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:33:28.644576 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:33:28.644577 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:33:28.644577 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:33:28.644578 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:33:28.644579 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:33:28.644579 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:33:28.644580 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:33:28.644580 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:33:28.644581 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:33:28.644581 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:33:28.644582 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:33:28.644583 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:33:28.644583 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:33:28.644584 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:33:28.644585 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:33:28.644585 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:33:28.644586 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:33:28.644586 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:33:28.644587 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:33:28.644588 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:33:28.644588 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:33:28.644589 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:33:28.644589 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:33:28.644590 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:33:28.644591 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:33:28.644591 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:33:28.644592 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:33:28.644592 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:33:28.644593 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:33:28.644593 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:33:28.644594 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:33:28.644594 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:33:28.644596 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:33:28.644599 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:33:28.644600 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:33:28.644711 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:33:28.644761 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:33:28.644762 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:33:28.644763 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:33:28.644764 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:33:28.644764 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:33:28.644765 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:33:28.644765 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:33:28.644785 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfaa840)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xf8ff40
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:33:28.644790 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:33:28.644791 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:33:28.644792 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:33:28.644793 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:33:28.644793 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:33:28.644794 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:33:28.644794 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:33:28.644795 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:33:28.644795 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:33:28.644796 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:33:28.644797 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:33:28.644797 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:33:28.644798 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:33:28.644799 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:33:28.644799 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:33:28.644800 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:33:28.644800 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:33:28.644801 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:33:28.644802 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:33:28.644802 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:33:28.644803 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:33:28.644803 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:33:28.644804 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:33:28.644804 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:33:28.644805 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:33:28.644806 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:33:28.644806 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:33:28.644808 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:33:28.644816 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:33:28.644816 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:33:28.644817 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:33:28.644817 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:33:28.644818 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:33:28.644818 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:33:28.644819 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:33:28.644820 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:33:28.644820 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:33:28.644821 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:33:28.644821 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:33:28.644822 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:33:28.644823 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:33:28.644824 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:33:28.644824 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:33:28.644825 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:33:28.644825 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:33:28.644826 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:33:28.644827 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:33:28.644827 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:33:28.644828 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:33:28.644829 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:33:28.644829 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:33:28.644830 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:33:28.644831 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:33:28.644831 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:33:28.644832 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:33:28.644832 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:33:28.644833 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:33:28.644834 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:33:28.644834 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:33:28.644835 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:33:28.644836 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:33:28.644836 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:33:28.644837 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:33:28.646304 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:33:28.646307 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:33:28.646440 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615682008646431, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:33:28.646445 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:33:29.323922 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682009995696 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682009995696
new file mode 100644
index 0000000..5d3fb01
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682009995696
@@ -0,0 +1,186 @@
+2021/03/14-01:33:29.331858 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:33:29.331885 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:33:29.331886 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:33:29.331887 7ffff7156a80 DB SUMMARY
+2021/03/14-01:33:29.332007 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:33:29.332008 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:33:29.332021 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:33:29.332022 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:33:29.332023 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:33:29.332027 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:33:29.332028 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:33:29.332028 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:33:29.332029 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:33:29.332029 7ffff7156a80 Options.info_log: 0xfc4230
+2021/03/14-01:33:29.332030 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:33:29.332031 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:33:29.332031 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:33:29.332032 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:33:29.332033 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:33:29.332033 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:33:29.332034 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:33:29.332034 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:33:29.332035 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:33:29.332035 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:33:29.332036 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:33:29.332037 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:33:29.332037 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:33:29.332038 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:33:29.332038 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:33:29.332039 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:33:29.332039 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:33:29.332040 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:33:29.332040 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:33:29.332041 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:33:29.332042 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:33:29.332042 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:33:29.332043 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:33:29.332043 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:33:29.332044 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:33:29.332044 7ffff7156a80 Options.write_buffer_manager: 0xfc60c0
+2021/03/14-01:33:29.332045 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:33:29.332046 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:33:29.332046 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:33:29.332047 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:33:29.332047 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:33:29.332048 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:33:29.332056 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:33:29.332057 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:33:29.332058 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:33:29.332058 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:33:29.332059 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:33:29.332059 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:33:29.332060 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:33:29.332060 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:33:29.332061 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:33:29.332062 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:33:29.332062 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:33:29.332063 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:33:29.332063 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:33:29.332064 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:33:29.332064 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:33:29.332065 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:33:29.332065 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:33:29.332066 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:33:29.332066 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:33:29.332067 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:33:29.332068 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:33:29.332068 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:33:29.332069 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:33:29.332069 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:33:29.332070 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:33:29.332070 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:33:29.332071 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:33:29.332072 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:33:29.332072 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:33:29.332073 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:33:29.332073 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:33:29.332074 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:33:29.332075 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:33:29.332076 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:33:29.332077 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:33:29.332139 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:33:29.332176 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:33:29.332177 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:33:29.332178 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:33:29.332179 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:33:29.332179 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:33:29.332180 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:33:29.332181 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:33:29.332197 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xfc5680)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xfcae50
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:33:29.332197 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:33:29.332198 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:33:29.332199 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:33:29.332199 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:33:29.332200 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:33:29.332201 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:33:29.332201 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:33:29.332202 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:33:29.332202 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:33:29.332203 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:33:29.332204 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:33:29.332204 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:33:29.332205 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:33:29.332205 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:33:29.332206 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:33:29.332207 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:33:29.332207 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:33:29.332208 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:33:29.332208 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:33:29.332209 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:33:29.332209 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:33:29.332210 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:33:29.332211 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:33:29.332211 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:33:29.332212 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:33:29.332212 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:33:29.332213 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:33:29.332214 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:33:29.332221 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:33:29.332222 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:33:29.332222 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:33:29.332223 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:33:29.332224 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:33:29.332224 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:33:29.332225 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:33:29.332225 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:33:29.332226 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:33:29.332226 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:33:29.332227 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:33:29.332228 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:33:29.332228 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:33:29.332229 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:33:29.332230 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:33:29.332231 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:33:29.332231 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:33:29.332232 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:33:29.332232 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:33:29.332233 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:33:29.332234 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:33:29.332234 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:33:29.332235 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:33:29.332235 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:33:29.332236 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:33:29.332236 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:33:29.332237 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:33:29.332242 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:33:29.332243 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:33:29.332244 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:33:29.332244 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:33:29.332245 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:33:29.332245 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:33:29.332246 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:33:29.332246 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:33:29.334100 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:33:29.334103 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:33:29.334214 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615682009334212, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:33:29.334216 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:33:29.989038 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682010670971 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682010670971
new file mode 100644
index 0000000..d3caf80
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682010670971
@@ -0,0 +1,186 @@
+2021/03/14-01:33:29.996232 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:33:29.996268 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:33:29.996270 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:33:29.996271 7ffff7156a80 DB SUMMARY
+2021/03/14-01:33:29.996396 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:33:29.996397 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:33:29.996410 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:33:29.996411 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:33:29.996412 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:33:29.996416 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:33:29.996416 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:33:29.996417 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:33:29.996418 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:33:29.996418 7ffff7156a80 Options.info_log: 0xff4c10
+2021/03/14-01:33:29.996419 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:33:29.996419 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:33:29.996420 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:33:29.996421 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:33:29.996421 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:33:29.996422 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:33:29.996422 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:33:29.996423 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:33:29.996424 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:33:29.996424 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:33:29.996425 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:33:29.996425 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:33:29.996426 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:33:29.996426 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:33:29.996427 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:33:29.996427 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:33:29.996428 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:33:29.996429 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:33:29.996429 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:33:29.996430 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:33:29.996430 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:33:29.996431 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:33:29.996432 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:33:29.996432 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:33:29.996433 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:33:29.996433 7ffff7156a80 Options.write_buffer_manager: 0xff78e0
+2021/03/14-01:33:29.996434 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:33:29.996434 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:33:29.996435 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:33:29.996435 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:33:29.996436 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:33:29.996437 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:33:29.996444 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:33:29.996445 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:33:29.996445 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:33:29.996446 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:33:29.996446 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:33:29.996447 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:33:29.996447 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:33:29.996448 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:33:29.996448 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:33:29.996449 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:33:29.996450 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:33:29.996450 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:33:29.996451 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:33:29.996451 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:33:29.996452 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:33:29.996452 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:33:29.996453 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:33:29.996453 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:33:29.996454 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:33:29.996454 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:33:29.996455 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:33:29.996456 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:33:29.996456 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:33:29.996457 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:33:29.996457 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:33:29.996458 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:33:29.996458 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:33:29.996459 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:33:29.996460 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:33:29.996460 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:33:29.996461 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:33:29.996461 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:33:29.996462 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:33:29.996463 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:33:29.996464 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:33:29.996526 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:33:29.996564 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:33:29.996565 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:33:29.996566 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:33:29.996566 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:33:29.996567 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:33:29.996567 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:33:29.996568 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:33:29.996584 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0xff7000)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0xffbcf0
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:33:29.996585 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:33:29.996585 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:33:29.996586 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:33:29.996587 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:33:29.996587 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:33:29.996588 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:33:29.996588 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:33:29.996589 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:33:29.996589 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:33:29.996590 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:33:29.996591 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:33:29.996591 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:33:29.996592 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:33:29.996593 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:33:29.996593 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:33:29.996594 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:33:29.996594 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:33:29.996595 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:33:29.996596 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:33:29.996596 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:33:29.996597 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:33:29.996597 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:33:29.996598 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:33:29.996598 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:33:29.996599 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:33:29.996600 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:33:29.996600 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:33:29.996602 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:33:29.996609 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:33:29.996609 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:33:29.996610 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:33:29.996611 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:33:29.996611 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:33:29.996612 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:33:29.996612 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:33:29.996613 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:33:29.996613 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:33:29.996614 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:33:29.996614 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:33:29.996615 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:33:29.996616 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:33:29.996617 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:33:29.996617 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:33:29.996618 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:33:29.996618 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:33:29.996619 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:33:29.996620 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:33:29.996620 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:33:29.996621 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:33:29.996622 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:33:29.996622 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:33:29.996623 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:33:29.996623 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:33:29.996624 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:33:29.996624 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:33:29.996625 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:33:29.996626 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:33:29.996626 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:33:29.996627 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:33:29.996627 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:33:29.996628 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:33:29.996629 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:33:29.996629 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:33:29.998310 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:33:29.998315 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:33:29.998453 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615682009998450, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:33:29.998457 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:33:30.663961 7ffff7156a80 EVENT_LOG_v1 {"time_
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682121568590 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682121568590
new file mode 100644
index 0000000..5c09613
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682121568590
@@ -0,0 +1,186 @@
+2021/03/14-01:33:30.673123 7ffff7156a80 RocksDB version: 5.11.3
+2021/03/14-01:33:30.673150 7ffff7156a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:33:30.673152 7ffff7156a80 Compile date Mar 13 2021
+2021/03/14-01:33:30.673153 7ffff7156a80 DB SUMMARY
+2021/03/14-01:33:30.673288 7ffff7156a80 CURRENT file: CURRENT
+2021/03/14-01:33:30.673289 7ffff7156a80 IDENTITY file: IDENTITY
+2021/03/14-01:33:30.673302 7ffff7156a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:33:30.673303 7ffff7156a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:33:30.673316 7ffff7156a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:33:30.673320 7ffff7156a80 Options.error_if_exists: 0
+2021/03/14-01:33:30.673321 7ffff7156a80 Options.create_if_missing: 1
+2021/03/14-01:33:30.673322 7ffff7156a80 Options.paranoid_checks: 1
+2021/03/14-01:33:30.673322 7ffff7156a80 Options.env: 0x7ffff7b10080
+2021/03/14-01:33:30.673323 7ffff7156a80 Options.info_log: 0x1024a20
+2021/03/14-01:33:30.673323 7ffff7156a80 Options.max_file_opening_threads: 16
+2021/03/14-01:33:30.673324 7ffff7156a80 Options.statistics: (nil)
+2021/03/14-01:33:30.673324 7ffff7156a80 Options.use_fsync: 0
+2021/03/14-01:33:30.673325 7ffff7156a80 Options.max_log_file_size: 0
+2021/03/14-01:33:30.673325 7ffff7156a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:33:30.673326 7ffff7156a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:33:30.673327 7ffff7156a80 Options.keep_log_file_num: 1000
+2021/03/14-01:33:30.673327 7ffff7156a80 Options.recycle_log_file_num: 0
+2021/03/14-01:33:30.673328 7ffff7156a80 Options.allow_fallocate: 1
+2021/03/14-01:33:30.673328 7ffff7156a80 Options.allow_mmap_reads: 0
+2021/03/14-01:33:30.673329 7ffff7156a80 Options.allow_mmap_writes: 0
+2021/03/14-01:33:30.673329 7ffff7156a80 Options.use_direct_reads: 0
+2021/03/14-01:33:30.673330 7ffff7156a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:33:30.673330 7ffff7156a80 Options.create_missing_column_families: 0
+2021/03/14-01:33:30.673331 7ffff7156a80 Options.db_log_dir:
+2021/03/14-01:33:30.673331 7ffff7156a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:33:30.673332 7ffff7156a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:33:30.673332 7ffff7156a80 Options.max_subcompactions: 1
+2021/03/14-01:33:30.673333 7ffff7156a80 Options.max_background_flushes: -1
+2021/03/14-01:33:30.673333 7ffff7156a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:33:30.673334 7ffff7156a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:33:30.673334 7ffff7156a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:33:30.673335 7ffff7156a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:33:30.673335 7ffff7156a80 Options.advise_random_on_open: 1
+2021/03/14-01:33:30.673336 7ffff7156a80 Options.db_write_buffer_size: 0
+2021/03/14-01:33:30.673336 7ffff7156a80 Options.write_buffer_manager: 0x1024970
+2021/03/14-01:33:30.673337 7ffff7156a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:33:30.673337 7ffff7156a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:33:30.673338 7ffff7156a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:33:30.673338 7ffff7156a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:33:30.673339 7ffff7156a80 Options.rate_limiter: (nil)
+2021/03/14-01:33:30.673339 7ffff7156a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:33:30.673348 7ffff7156a80 Options.wal_recovery_mode: 2
+2021/03/14-01:33:30.673348 7ffff7156a80 Options.enable_thread_tracking: 0
+2021/03/14-01:33:30.673349 7ffff7156a80 Options.enable_pipelined_write: 0
+2021/03/14-01:33:30.673349 7ffff7156a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:33:30.673350 7ffff7156a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:33:30.673350 7ffff7156a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:33:30.673351 7ffff7156a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:33:30.673351 7ffff7156a80 Options.row_cache: None
+2021/03/14-01:33:30.673352 7ffff7156a80 Options.wal_filter: None
+2021/03/14-01:33:30.673352 7ffff7156a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:33:30.673353 7ffff7156a80 Options.allow_ingest_behind: 0
+2021/03/14-01:33:30.673353 7ffff7156a80 Options.preserve_deletes: 0
+2021/03/14-01:33:30.673354 7ffff7156a80 Options.two_write_queues: 0
+2021/03/14-01:33:30.673354 7ffff7156a80 Options.manual_wal_flush: 0
+2021/03/14-01:33:30.673355 7ffff7156a80 Options.max_background_jobs: 16
+2021/03/14-01:33:30.673355 7ffff7156a80 Options.max_background_compactions: -1
+2021/03/14-01:33:30.673356 7ffff7156a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:33:30.673356 7ffff7156a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:33:30.673357 7ffff7156a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:33:30.673357 7ffff7156a80 Options.max_total_wal_size: 0
+2021/03/14-01:33:30.673358 7ffff7156a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:33:30.673359 7ffff7156a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:33:30.673359 7ffff7156a80 Options.max_open_files: -1
+2021/03/14-01:33:30.673360 7ffff7156a80 Options.bytes_per_sync: 0
+2021/03/14-01:33:30.673360 7ffff7156a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:33:30.673361 7ffff7156a80 Options.compaction_readahead_size: 0
+2021/03/14-01:33:30.673361 7ffff7156a80 Compression algorithms supported:
+2021/03/14-01:33:30.673362 7ffff7156a80 Snappy supported: 1
+2021/03/14-01:33:30.673362 7ffff7156a80 Zlib supported: 1
+2021/03/14-01:33:30.673363 7ffff7156a80 Bzip supported: 1
+2021/03/14-01:33:30.673363 7ffff7156a80 LZ4 supported: 1
+2021/03/14-01:33:30.673364 7ffff7156a80 ZSTDNotFinal supported: 1
+2021/03/14-01:33:30.673364 7ffff7156a80 ZSTD supported: 1
+2021/03/14-01:33:30.673366 7ffff7156a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:33:30.673366 7ffff7156a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:33:30.673425 7ffff7156a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:33:30.673460 7ffff7156a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:33:30.673461 7ffff7156a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:33:30.673462 7ffff7156a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:33:30.673462 7ffff7156a80 Options.compaction_filter: None
+2021/03/14-01:33:30.673463 7ffff7156a80 Options.compaction_filter_factory: None
+2021/03/14-01:33:30.673463 7ffff7156a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:33:30.673464 7ffff7156a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:33:30.673477 7ffff7156a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1027a00)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x102bac0
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:33:30.673478 7ffff7156a80 Options.write_buffer_size: 134217728
+2021/03/14-01:33:30.673479 7ffff7156a80 Options.max_write_buffer_number: 6
+2021/03/14-01:33:30.673479 7ffff7156a80 Options.compression[0]: NoCompression
+2021/03/14-01:33:30.673480 7ffff7156a80 Options.compression[1]: NoCompression
+2021/03/14-01:33:30.673481 7ffff7156a80 Options.compression[2]: Snappy
+2021/03/14-01:33:30.673481 7ffff7156a80 Options.compression[3]: Snappy
+2021/03/14-01:33:30.673482 7ffff7156a80 Options.compression[4]: Snappy
+2021/03/14-01:33:30.673482 7ffff7156a80 Options.compression[5]: Snappy
+2021/03/14-01:33:30.673483 7ffff7156a80 Options.compression[6]: Snappy
+2021/03/14-01:33:30.673483 7ffff7156a80 Options.bottommost_compression: Disabled
+2021/03/14-01:33:30.673484 7ffff7156a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:33:30.673485 7ffff7156a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:33:30.673485 7ffff7156a80 Options.num_levels: 7
+2021/03/14-01:33:30.673486 7ffff7156a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:33:30.673486 7ffff7156a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:33:30.673487 7ffff7156a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:33:30.673487 7ffff7156a80 Options.compression_opts.level: -1
+2021/03/14-01:33:30.673488 7ffff7156a80 Options.compression_opts.strategy: 0
+2021/03/14-01:33:30.673488 7ffff7156a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:33:30.673489 7ffff7156a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:33:30.673489 7ffff7156a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:33:30.673490 7ffff7156a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:33:30.673490 7ffff7156a80 Options.target_file_size_base: 67108864
+2021/03/14-01:33:30.673491 7ffff7156a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:33:30.673491 7ffff7156a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:33:30.673492 7ffff7156a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:33:30.673492 7ffff7156a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:33:30.673494 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:33:30.673500 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:33:30.673501 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:33:30.673501 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:33:30.673502 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:33:30.673502 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:33:30.673503 7ffff7156a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:33:30.673503 7ffff7156a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:33:30.673504 7ffff7156a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:33:30.673504 7ffff7156a80 Options.arena_block_size: 16777216
+2021/03/14-01:33:30.673505 7ffff7156a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:33:30.673505 7ffff7156a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:33:30.673506 7ffff7156a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:33:30.673507 7ffff7156a80 Options.disable_auto_compactions: 0
+2021/03/14-01:33:30.673508 7ffff7156a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:33:30.673508 7ffff7156a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:33:30.673509 7ffff7156a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:33:30.673509 7ffff7156a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:33:30.673510 7ffff7156a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:33:30.673510 7ffff7156a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:33:30.673511 7ffff7156a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:33:30.673512 7ffff7156a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:33:30.673512 7ffff7156a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:33:30.673513 7ffff7156a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:33:30.673513 7ffff7156a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:33:30.673514 7ffff7156a80 Options.table_properties_collectors:
+2021/03/14-01:33:30.673514 7ffff7156a80 Options.inplace_update_support: 0
+2021/03/14-01:33:30.673515 7ffff7156a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:33:30.673515 7ffff7156a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:33:30.673516 7ffff7156a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:33:30.673516 7ffff7156a80 Options.bloom_locality: 0
+2021/03/14-01:33:30.673517 7ffff7156a80 Options.max_successive_merges: 0
+2021/03/14-01:33:30.673518 7ffff7156a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:33:30.673518 7ffff7156a80 Options.paranoid_file_checks: 0
+2021/03/14-01:33:30.673519 7ffff7156a80 Options.force_consistency_checks: 0
+2021/03/14-01:33:30.673519 7ffff7156a80 Options.report_bg_io_stats: 0
+2021/03/14-01:33:30.675029 7ffff7156a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:33:30.675032 7ffff7156a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:33:30.675156 7ffff7156a80 EVENT_LOG_v1 {"time_micros": 1615682010675154, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:33:30.675159 7ffff7156a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:33:31.341349 7ffff7156a80 EVENT_LOG_v1 {"tim
\ No newline at end of file
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682122260518 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682122260518
new file mode 100644
index 0000000..0c302bc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682122260518
@@ -0,0 +1,186 @@
+2021/03/14-01:35:21.569007 7f10436c1a80 RocksDB version: 5.11.3
+2021/03/14-01:35:21.569082 7f10436c1a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:35:21.569083 7f10436c1a80 Compile date Mar 13 2021
+2021/03/14-01:35:21.569086 7f10436c1a80 DB SUMMARY
+2021/03/14-01:35:21.569231 7f10436c1a80 CURRENT file: CURRENT
+2021/03/14-01:35:21.569232 7f10436c1a80 IDENTITY file: IDENTITY
+2021/03/14-01:35:21.569252 7f10436c1a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:35:21.569254 7f10436c1a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:35:21.569255 7f10436c1a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:35:21.569260 7f10436c1a80 Options.error_if_exists: 0
+2021/03/14-01:35:21.569261 7f10436c1a80 Options.create_if_missing: 1
+2021/03/14-01:35:21.569262 7f10436c1a80 Options.paranoid_checks: 1
+2021/03/14-01:35:21.569262 7f10436c1a80 Options.env: 0x7f104407b080
+2021/03/14-01:35:21.569263 7f10436c1a80 Options.info_log: 0x27beca0
+2021/03/14-01:35:21.569264 7f10436c1a80 Options.max_file_opening_threads: 16
+2021/03/14-01:35:21.569264 7f10436c1a80 Options.statistics: (nil)
+2021/03/14-01:35:21.569265 7f10436c1a80 Options.use_fsync: 0
+2021/03/14-01:35:21.569266 7f10436c1a80 Options.max_log_file_size: 0
+2021/03/14-01:35:21.569266 7f10436c1a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:35:21.569267 7f10436c1a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:35:21.569268 7f10436c1a80 Options.keep_log_file_num: 1000
+2021/03/14-01:35:21.569268 7f10436c1a80 Options.recycle_log_file_num: 0
+2021/03/14-01:35:21.569269 7f10436c1a80 Options.allow_fallocate: 1
+2021/03/14-01:35:21.569270 7f10436c1a80 Options.allow_mmap_reads: 0
+2021/03/14-01:35:21.569270 7f10436c1a80 Options.allow_mmap_writes: 0
+2021/03/14-01:35:21.569271 7f10436c1a80 Options.use_direct_reads: 0
+2021/03/14-01:35:21.569272 7f10436c1a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:35:21.569272 7f10436c1a80 Options.create_missing_column_families: 0
+2021/03/14-01:35:21.569273 7f10436c1a80 Options.db_log_dir:
+2021/03/14-01:35:21.569273 7f10436c1a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:35:21.569274 7f10436c1a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:35:21.569275 7f10436c1a80 Options.max_subcompactions: 1
+2021/03/14-01:35:21.569275 7f10436c1a80 Options.max_background_flushes: -1
+2021/03/14-01:35:21.569276 7f10436c1a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:35:21.569277 7f10436c1a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:35:21.569277 7f10436c1a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:35:21.569278 7f10436c1a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:35:21.569279 7f10436c1a80 Options.advise_random_on_open: 1
+2021/03/14-01:35:21.569279 7f10436c1a80 Options.db_write_buffer_size: 0
+2021/03/14-01:35:21.569280 7f10436c1a80 Options.write_buffer_manager: 0x27a6b90
+2021/03/14-01:35:21.569280 7f10436c1a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:35:21.569281 7f10436c1a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:35:21.569282 7f10436c1a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:35:21.569282 7f10436c1a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:35:21.569283 7f10436c1a80 Options.rate_limiter: (nil)
+2021/03/14-01:35:21.569284 7f10436c1a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:35:21.569294 7f10436c1a80 Options.wal_recovery_mode: 2
+2021/03/14-01:35:21.569295 7f10436c1a80 Options.enable_thread_tracking: 0
+2021/03/14-01:35:21.569296 7f10436c1a80 Options.enable_pipelined_write: 0
+2021/03/14-01:35:21.569296 7f10436c1a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:35:21.569297 7f10436c1a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:35:21.569297 7f10436c1a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:35:21.569298 7f10436c1a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:35:21.569299 7f10436c1a80 Options.row_cache: None
+2021/03/14-01:35:21.569299 7f10436c1a80 Options.wal_filter: None
+2021/03/14-01:35:21.569300 7f10436c1a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:35:21.569301 7f10436c1a80 Options.allow_ingest_behind: 0
+2021/03/14-01:35:21.569301 7f10436c1a80 Options.preserve_deletes: 0
+2021/03/14-01:35:21.569302 7f10436c1a80 Options.two_write_queues: 0
+2021/03/14-01:35:21.569302 7f10436c1a80 Options.manual_wal_flush: 0
+2021/03/14-01:35:21.569304 7f10436c1a80 Options.max_background_jobs: 16
+2021/03/14-01:35:21.569304 7f10436c1a80 Options.max_background_compactions: -1
+2021/03/14-01:35:21.569305 7f10436c1a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:35:21.569306 7f10436c1a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:35:21.569306 7f10436c1a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:35:21.569307 7f10436c1a80 Options.max_total_wal_size: 0
+2021/03/14-01:35:21.569308 7f10436c1a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:35:21.569308 7f10436c1a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:35:21.569309 7f10436c1a80 Options.max_open_files: -1
+2021/03/14-01:35:21.569310 7f10436c1a80 Options.bytes_per_sync: 0
+2021/03/14-01:35:21.569310 7f10436c1a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:35:21.569311 7f10436c1a80 Options.compaction_readahead_size: 0
+2021/03/14-01:35:21.569311 7f10436c1a80 Compression algorithms supported:
+2021/03/14-01:35:21.569312 7f10436c1a80 Snappy supported: 1
+2021/03/14-01:35:21.569313 7f10436c1a80 Zlib supported: 1
+2021/03/14-01:35:21.569314 7f10436c1a80 Bzip supported: 1
+2021/03/14-01:35:21.569314 7f10436c1a80 LZ4 supported: 1
+2021/03/14-01:35:21.569315 7f10436c1a80 ZSTDNotFinal supported: 1
+2021/03/14-01:35:21.569319 7f10436c1a80 ZSTD supported: 1
+2021/03/14-01:35:21.569323 7f10436c1a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:35:21.569324 7f10436c1a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:35:21.569431 7f10436c1a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:35:21.569495 7f10436c1a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:35:21.569497 7f10436c1a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:35:21.569498 7f10436c1a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:35:21.569499 7f10436c1a80 Options.compaction_filter: None
+2021/03/14-01:35:21.569500 7f10436c1a80 Options.compaction_filter_factory: None
+2021/03/14-01:35:21.569500 7f10436c1a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:35:21.569501 7f10436c1a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:35:21.569518 7f10436c1a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x27b6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x279bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:35:21.569519 7f10436c1a80 Options.write_buffer_size: 134217728
+2021/03/14-01:35:21.569519 7f10436c1a80 Options.max_write_buffer_number: 6
+2021/03/14-01:35:21.569520 7f10436c1a80 Options.compression[0]: NoCompression
+2021/03/14-01:35:21.569521 7f10436c1a80 Options.compression[1]: NoCompression
+2021/03/14-01:35:21.569522 7f10436c1a80 Options.compression[2]: Snappy
+2021/03/14-01:35:21.569522 7f10436c1a80 Options.compression[3]: Snappy
+2021/03/14-01:35:21.569523 7f10436c1a80 Options.compression[4]: Snappy
+2021/03/14-01:35:21.569524 7f10436c1a80 Options.compression[5]: Snappy
+2021/03/14-01:35:21.569524 7f10436c1a80 Options.compression[6]: Snappy
+2021/03/14-01:35:21.569525 7f10436c1a80 Options.bottommost_compression: Disabled
+2021/03/14-01:35:21.569526 7f10436c1a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:35:21.569527 7f10436c1a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:35:21.569527 7f10436c1a80 Options.num_levels: 7
+2021/03/14-01:35:21.569528 7f10436c1a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:35:21.569529 7f10436c1a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:35:21.569529 7f10436c1a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:35:21.569530 7f10436c1a80 Options.compression_opts.level: -1
+2021/03/14-01:35:21.569531 7f10436c1a80 Options.compression_opts.strategy: 0
+2021/03/14-01:35:21.569531 7f10436c1a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:35:21.569532 7f10436c1a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:35:21.569533 7f10436c1a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:35:21.569533 7f10436c1a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:35:21.569534 7f10436c1a80 Options.target_file_size_base: 67108864
+2021/03/14-01:35:21.569535 7f10436c1a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:35:21.569535 7f10436c1a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:35:21.569536 7f10436c1a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:35:21.569537 7f10436c1a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:35:21.569538 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:35:21.569547 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:35:21.569548 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:35:21.569549 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:35:21.569549 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:35:21.569550 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:35:21.569551 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:35:21.569551 7f10436c1a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:35:21.569552 7f10436c1a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:35:21.569553 7f10436c1a80 Options.arena_block_size: 16777216
+2021/03/14-01:35:21.569553 7f10436c1a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:35:21.569554 7f10436c1a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:35:21.569555 7f10436c1a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:35:21.569555 7f10436c1a80 Options.disable_auto_compactions: 0
+2021/03/14-01:35:21.569557 7f10436c1a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:35:21.569558 7f10436c1a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:35:21.569559 7f10436c1a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:35:21.569559 7f10436c1a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:35:21.569560 7f10436c1a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:35:21.569561 7f10436c1a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:35:21.569561 7f10436c1a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:35:21.569563 7f10436c1a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:35:21.569563 7f10436c1a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:35:21.569564 7f10436c1a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:35:21.569564 7f10436c1a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:35:21.569565 7f10436c1a80 Options.table_properties_collectors:
+2021/03/14-01:35:21.569566 7f10436c1a80 Options.inplace_update_support: 0
+2021/03/14-01:35:21.569566 7f10436c1a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:35:21.569567 7f10436c1a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:35:21.569568 7f10436c1a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:35:21.569569 7f10436c1a80 Options.bloom_locality: 0
+2021/03/14-01:35:21.569569 7f10436c1a80 Options.max_successive_merges: 0
+2021/03/14-01:35:21.569570 7f10436c1a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:35:21.569570 7f10436c1a80 Options.paranoid_file_checks: 0
+2021/03/14-01:35:21.569571 7f10436c1a80 Options.force_consistency_checks: 0
+2021/03/14-01:35:21.569572 7f10436c1a80 Options.report_bg_io_stats: 0
+2021/03/14-01:35:21.570193 7f10436c1a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:35:21.570198 7f10436c1a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:35:21.570414 7f10436c1a80 EVENT_LOG_v1 {"time_micros": 1615682121570392, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:35:21.570423 7f10436c1a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:35:22.248326 7f10436c1a80 EVENT_LOG_v1 {"time_micros": 1615682122248323, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682122949132 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682122949132
new file mode 100644
index 0000000..ad80c36
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682122949132
@@ -0,0 +1,186 @@
+2021/03/14-01:35:22.260908 7f10436c1a80 RocksDB version: 5.11.3
+2021/03/14-01:35:22.260964 7f10436c1a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:35:22.260965 7f10436c1a80 Compile date Mar 13 2021
+2021/03/14-01:35:22.260968 7f10436c1a80 DB SUMMARY
+2021/03/14-01:35:22.261098 7f10436c1a80 CURRENT file: CURRENT
+2021/03/14-01:35:22.261100 7f10436c1a80 IDENTITY file: IDENTITY
+2021/03/14-01:35:22.261112 7f10436c1a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:35:22.261113 7f10436c1a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:35:22.261114 7f10436c1a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:35:22.261119 7f10436c1a80 Options.error_if_exists: 0
+2021/03/14-01:35:22.261120 7f10436c1a80 Options.create_if_missing: 1
+2021/03/14-01:35:22.261120 7f10436c1a80 Options.paranoid_checks: 1
+2021/03/14-01:35:22.261121 7f10436c1a80 Options.env: 0x7f104407b080
+2021/03/14-01:35:22.261121 7f10436c1a80 Options.info_log: 0x27beca0
+2021/03/14-01:35:22.261122 7f10436c1a80 Options.max_file_opening_threads: 16
+2021/03/14-01:35:22.261123 7f10436c1a80 Options.statistics: (nil)
+2021/03/14-01:35:22.261123 7f10436c1a80 Options.use_fsync: 0
+2021/03/14-01:35:22.261124 7f10436c1a80 Options.max_log_file_size: 0
+2021/03/14-01:35:22.261124 7f10436c1a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:35:22.261125 7f10436c1a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:35:22.261126 7f10436c1a80 Options.keep_log_file_num: 1000
+2021/03/14-01:35:22.261126 7f10436c1a80 Options.recycle_log_file_num: 0
+2021/03/14-01:35:22.261127 7f10436c1a80 Options.allow_fallocate: 1
+2021/03/14-01:35:22.261127 7f10436c1a80 Options.allow_mmap_reads: 0
+2021/03/14-01:35:22.261128 7f10436c1a80 Options.allow_mmap_writes: 0
+2021/03/14-01:35:22.261128 7f10436c1a80 Options.use_direct_reads: 0
+2021/03/14-01:35:22.261129 7f10436c1a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:35:22.261130 7f10436c1a80 Options.create_missing_column_families: 0
+2021/03/14-01:35:22.261130 7f10436c1a80 Options.db_log_dir:
+2021/03/14-01:35:22.261131 7f10436c1a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:35:22.261131 7f10436c1a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:35:22.261132 7f10436c1a80 Options.max_subcompactions: 1
+2021/03/14-01:35:22.261132 7f10436c1a80 Options.max_background_flushes: -1
+2021/03/14-01:35:22.261133 7f10436c1a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:35:22.261134 7f10436c1a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:35:22.261134 7f10436c1a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:35:22.261135 7f10436c1a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:35:22.261135 7f10436c1a80 Options.advise_random_on_open: 1
+2021/03/14-01:35:22.261136 7f10436c1a80 Options.db_write_buffer_size: 0
+2021/03/14-01:35:22.261136 7f10436c1a80 Options.write_buffer_manager: 0x27a6b90
+2021/03/14-01:35:22.261137 7f10436c1a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:35:22.261137 7f10436c1a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:35:22.261138 7f10436c1a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:35:22.261139 7f10436c1a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:35:22.261139 7f10436c1a80 Options.rate_limiter: (nil)
+2021/03/14-01:35:22.261140 7f10436c1a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:35:22.261148 7f10436c1a80 Options.wal_recovery_mode: 2
+2021/03/14-01:35:22.261149 7f10436c1a80 Options.enable_thread_tracking: 0
+2021/03/14-01:35:22.261149 7f10436c1a80 Options.enable_pipelined_write: 0
+2021/03/14-01:35:22.261150 7f10436c1a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:35:22.261150 7f10436c1a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:35:22.261151 7f10436c1a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:35:22.261152 7f10436c1a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:35:22.261152 7f10436c1a80 Options.row_cache: None
+2021/03/14-01:35:22.261153 7f10436c1a80 Options.wal_filter: None
+2021/03/14-01:35:22.261153 7f10436c1a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:35:22.261154 7f10436c1a80 Options.allow_ingest_behind: 0
+2021/03/14-01:35:22.261154 7f10436c1a80 Options.preserve_deletes: 0
+2021/03/14-01:35:22.261155 7f10436c1a80 Options.two_write_queues: 0
+2021/03/14-01:35:22.261155 7f10436c1a80 Options.manual_wal_flush: 0
+2021/03/14-01:35:22.261157 7f10436c1a80 Options.max_background_jobs: 16
+2021/03/14-01:35:22.261157 7f10436c1a80 Options.max_background_compactions: -1
+2021/03/14-01:35:22.261158 7f10436c1a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:35:22.261158 7f10436c1a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:35:22.261159 7f10436c1a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:35:22.261160 7f10436c1a80 Options.max_total_wal_size: 0
+2021/03/14-01:35:22.261160 7f10436c1a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:35:22.261161 7f10436c1a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:35:22.261161 7f10436c1a80 Options.max_open_files: -1
+2021/03/14-01:35:22.261162 7f10436c1a80 Options.bytes_per_sync: 0
+2021/03/14-01:35:22.261162 7f10436c1a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:35:22.261163 7f10436c1a80 Options.compaction_readahead_size: 0
+2021/03/14-01:35:22.261163 7f10436c1a80 Compression algorithms supported:
+2021/03/14-01:35:22.261164 7f10436c1a80 Snappy supported: 1
+2021/03/14-01:35:22.261165 7f10436c1a80 Zlib supported: 1
+2021/03/14-01:35:22.261165 7f10436c1a80 Bzip supported: 1
+2021/03/14-01:35:22.261166 7f10436c1a80 LZ4 supported: 1
+2021/03/14-01:35:22.261166 7f10436c1a80 ZSTDNotFinal supported: 1
+2021/03/14-01:35:22.261170 7f10436c1a80 ZSTD supported: 1
+2021/03/14-01:35:22.261174 7f10436c1a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:35:22.261175 7f10436c1a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:35:22.261272 7f10436c1a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:35:22.261326 7f10436c1a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:35:22.261328 7f10436c1a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:35:22.261329 7f10436c1a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:35:22.261329 7f10436c1a80 Options.compaction_filter: None
+2021/03/14-01:35:22.261330 7f10436c1a80 Options.compaction_filter_factory: None
+2021/03/14-01:35:22.261331 7f10436c1a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:35:22.261332 7f10436c1a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:35:22.261346 7f10436c1a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x27b6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x279bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:35:22.261347 7f10436c1a80 Options.write_buffer_size: 134217728
+2021/03/14-01:35:22.261348 7f10436c1a80 Options.max_write_buffer_number: 6
+2021/03/14-01:35:22.261349 7f10436c1a80 Options.compression[0]: NoCompression
+2021/03/14-01:35:22.261349 7f10436c1a80 Options.compression[1]: NoCompression
+2021/03/14-01:35:22.261350 7f10436c1a80 Options.compression[2]: Snappy
+2021/03/14-01:35:22.261351 7f10436c1a80 Options.compression[3]: Snappy
+2021/03/14-01:35:22.261351 7f10436c1a80 Options.compression[4]: Snappy
+2021/03/14-01:35:22.261352 7f10436c1a80 Options.compression[5]: Snappy
+2021/03/14-01:35:22.261352 7f10436c1a80 Options.compression[6]: Snappy
+2021/03/14-01:35:22.261353 7f10436c1a80 Options.bottommost_compression: Disabled
+2021/03/14-01:35:22.261354 7f10436c1a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:35:22.261355 7f10436c1a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:35:22.261355 7f10436c1a80 Options.num_levels: 7
+2021/03/14-01:35:22.261356 7f10436c1a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:35:22.261356 7f10436c1a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:35:22.261357 7f10436c1a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:35:22.261358 7f10436c1a80 Options.compression_opts.level: -1
+2021/03/14-01:35:22.261358 7f10436c1a80 Options.compression_opts.strategy: 0
+2021/03/14-01:35:22.261359 7f10436c1a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:35:22.261359 7f10436c1a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:35:22.261360 7f10436c1a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:35:22.261360 7f10436c1a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:35:22.261361 7f10436c1a80 Options.target_file_size_base: 67108864
+2021/03/14-01:35:22.261362 7f10436c1a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:35:22.261362 7f10436c1a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:35:22.261363 7f10436c1a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:35:22.261363 7f10436c1a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:35:22.261365 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:35:22.261373 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:35:22.261374 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:35:22.261375 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:35:22.261375 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:35:22.261376 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:35:22.261377 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:35:22.261377 7f10436c1a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:35:22.261378 7f10436c1a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:35:22.261378 7f10436c1a80 Options.arena_block_size: 16777216
+2021/03/14-01:35:22.261379 7f10436c1a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:35:22.261379 7f10436c1a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:35:22.261380 7f10436c1a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:35:22.261381 7f10436c1a80 Options.disable_auto_compactions: 0
+2021/03/14-01:35:22.261382 7f10436c1a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:35:22.261383 7f10436c1a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:35:22.261384 7f10436c1a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:35:22.261384 7f10436c1a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:35:22.261385 7f10436c1a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:35:22.261385 7f10436c1a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:35:22.261386 7f10436c1a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:35:22.261387 7f10436c1a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:35:22.261387 7f10436c1a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:35:22.261388 7f10436c1a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:35:22.261389 7f10436c1a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:35:22.261389 7f10436c1a80 Options.table_properties_collectors:
+2021/03/14-01:35:22.261390 7f10436c1a80 Options.inplace_update_support: 0
+2021/03/14-01:35:22.261390 7f10436c1a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:35:22.261391 7f10436c1a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:35:22.261392 7f10436c1a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:35:22.261392 7f10436c1a80 Options.bloom_locality: 0
+2021/03/14-01:35:22.261393 7f10436c1a80 Options.max_successive_merges: 0
+2021/03/14-01:35:22.261393 7f10436c1a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:35:22.261394 7f10436c1a80 Options.paranoid_file_checks: 0
+2021/03/14-01:35:22.261394 7f10436c1a80 Options.force_consistency_checks: 0
+2021/03/14-01:35:22.261395 7f10436c1a80 Options.report_bg_io_stats: 0
+2021/03/14-01:35:22.261775 7f10436c1a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:35:22.261778 7f10436c1a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:35:22.261914 7f10436c1a80 EVENT_LOG_v1 {"time_micros": 1615682122261901, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:35:22.261919 7f10436c1a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:35:22.936380 7f10436c1a80 EVENT_LOG_v1 {"time_micros": 1615682122936376, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682123621527 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682123621527
new file mode 100644
index 0000000..c5fda7d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682123621527
@@ -0,0 +1,186 @@
+2021/03/14-01:35:22.949529 7f10436c1a80 RocksDB version: 5.11.3
+2021/03/14-01:35:22.949585 7f10436c1a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:35:22.949586 7f10436c1a80 Compile date Mar 13 2021
+2021/03/14-01:35:22.949589 7f10436c1a80 DB SUMMARY
+2021/03/14-01:35:22.949719 7f10436c1a80 CURRENT file: CURRENT
+2021/03/14-01:35:22.949720 7f10436c1a80 IDENTITY file: IDENTITY
+2021/03/14-01:35:22.949732 7f10436c1a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:35:22.949734 7f10436c1a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:35:22.949735 7f10436c1a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:35:22.949739 7f10436c1a80 Options.error_if_exists: 0
+2021/03/14-01:35:22.949740 7f10436c1a80 Options.create_if_missing: 1
+2021/03/14-01:35:22.949740 7f10436c1a80 Options.paranoid_checks: 1
+2021/03/14-01:35:22.949741 7f10436c1a80 Options.env: 0x7f104407b080
+2021/03/14-01:35:22.949742 7f10436c1a80 Options.info_log: 0x27beca0
+2021/03/14-01:35:22.949742 7f10436c1a80 Options.max_file_opening_threads: 16
+2021/03/14-01:35:22.949743 7f10436c1a80 Options.statistics: (nil)
+2021/03/14-01:35:22.949743 7f10436c1a80 Options.use_fsync: 0
+2021/03/14-01:35:22.949744 7f10436c1a80 Options.max_log_file_size: 0
+2021/03/14-01:35:22.949745 7f10436c1a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:35:22.949745 7f10436c1a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:35:22.949746 7f10436c1a80 Options.keep_log_file_num: 1000
+2021/03/14-01:35:22.949746 7f10436c1a80 Options.recycle_log_file_num: 0
+2021/03/14-01:35:22.949747 7f10436c1a80 Options.allow_fallocate: 1
+2021/03/14-01:35:22.949748 7f10436c1a80 Options.allow_mmap_reads: 0
+2021/03/14-01:35:22.949748 7f10436c1a80 Options.allow_mmap_writes: 0
+2021/03/14-01:35:22.949749 7f10436c1a80 Options.use_direct_reads: 0
+2021/03/14-01:35:22.949749 7f10436c1a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:35:22.949750 7f10436c1a80 Options.create_missing_column_families: 0
+2021/03/14-01:35:22.949750 7f10436c1a80 Options.db_log_dir:
+2021/03/14-01:35:22.949751 7f10436c1a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:35:22.949751 7f10436c1a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:35:22.949752 7f10436c1a80 Options.max_subcompactions: 1
+2021/03/14-01:35:22.949753 7f10436c1a80 Options.max_background_flushes: -1
+2021/03/14-01:35:22.949753 7f10436c1a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:35:22.949754 7f10436c1a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:35:22.949754 7f10436c1a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:35:22.949755 7f10436c1a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:35:22.949756 7f10436c1a80 Options.advise_random_on_open: 1
+2021/03/14-01:35:22.949756 7f10436c1a80 Options.db_write_buffer_size: 0
+2021/03/14-01:35:22.949757 7f10436c1a80 Options.write_buffer_manager: 0x27a6b90
+2021/03/14-01:35:22.949757 7f10436c1a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:35:22.949758 7f10436c1a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:35:22.949758 7f10436c1a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:35:22.949759 7f10436c1a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:35:22.949759 7f10436c1a80 Options.rate_limiter: (nil)
+2021/03/14-01:35:22.949761 7f10436c1a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:35:22.949769 7f10436c1a80 Options.wal_recovery_mode: 2
+2021/03/14-01:35:22.949770 7f10436c1a80 Options.enable_thread_tracking: 0
+2021/03/14-01:35:22.949771 7f10436c1a80 Options.enable_pipelined_write: 0
+2021/03/14-01:35:22.949771 7f10436c1a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:35:22.949772 7f10436c1a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:35:22.949772 7f10436c1a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:35:22.949773 7f10436c1a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:35:22.949774 7f10436c1a80 Options.row_cache: None
+2021/03/14-01:35:22.949774 7f10436c1a80 Options.wal_filter: None
+2021/03/14-01:35:22.949775 7f10436c1a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:35:22.949775 7f10436c1a80 Options.allow_ingest_behind: 0
+2021/03/14-01:35:22.949776 7f10436c1a80 Options.preserve_deletes: 0
+2021/03/14-01:35:22.949776 7f10436c1a80 Options.two_write_queues: 0
+2021/03/14-01:35:22.949777 7f10436c1a80 Options.manual_wal_flush: 0
+2021/03/14-01:35:22.949778 7f10436c1a80 Options.max_background_jobs: 16
+2021/03/14-01:35:22.949778 7f10436c1a80 Options.max_background_compactions: -1
+2021/03/14-01:35:22.949779 7f10436c1a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:35:22.949780 7f10436c1a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:35:22.949780 7f10436c1a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:35:22.949781 7f10436c1a80 Options.max_total_wal_size: 0
+2021/03/14-01:35:22.949781 7f10436c1a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:35:22.949782 7f10436c1a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:35:22.949782 7f10436c1a80 Options.max_open_files: -1
+2021/03/14-01:35:22.949783 7f10436c1a80 Options.bytes_per_sync: 0
+2021/03/14-01:35:22.949784 7f10436c1a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:35:22.949784 7f10436c1a80 Options.compaction_readahead_size: 0
+2021/03/14-01:35:22.949785 7f10436c1a80 Compression algorithms supported:
+2021/03/14-01:35:22.949785 7f10436c1a80 Snappy supported: 1
+2021/03/14-01:35:22.949786 7f10436c1a80 Zlib supported: 1
+2021/03/14-01:35:22.949786 7f10436c1a80 Bzip supported: 1
+2021/03/14-01:35:22.949787 7f10436c1a80 LZ4 supported: 1
+2021/03/14-01:35:22.949787 7f10436c1a80 ZSTDNotFinal supported: 1
+2021/03/14-01:35:22.949792 7f10436c1a80 ZSTD supported: 1
+2021/03/14-01:35:22.949795 7f10436c1a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:35:22.949796 7f10436c1a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:35:22.949885 7f10436c1a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:35:22.949938 7f10436c1a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:35:22.949940 7f10436c1a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:35:22.949940 7f10436c1a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:35:22.949941 7f10436c1a80 Options.compaction_filter: None
+2021/03/14-01:35:22.949942 7f10436c1a80 Options.compaction_filter_factory: None
+2021/03/14-01:35:22.949942 7f10436c1a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:35:22.949943 7f10436c1a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:35:22.949957 7f10436c1a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x27b6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x279bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:35:22.949958 7f10436c1a80 Options.write_buffer_size: 134217728
+2021/03/14-01:35:22.949959 7f10436c1a80 Options.max_write_buffer_number: 6
+2021/03/14-01:35:22.949960 7f10436c1a80 Options.compression[0]: NoCompression
+2021/03/14-01:35:22.949960 7f10436c1a80 Options.compression[1]: NoCompression
+2021/03/14-01:35:22.949961 7f10436c1a80 Options.compression[2]: Snappy
+2021/03/14-01:35:22.949961 7f10436c1a80 Options.compression[3]: Snappy
+2021/03/14-01:35:22.949962 7f10436c1a80 Options.compression[4]: Snappy
+2021/03/14-01:35:22.949962 7f10436c1a80 Options.compression[5]: Snappy
+2021/03/14-01:35:22.949963 7f10436c1a80 Options.compression[6]: Snappy
+2021/03/14-01:35:22.949964 7f10436c1a80 Options.bottommost_compression: Disabled
+2021/03/14-01:35:22.949964 7f10436c1a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:35:22.949965 7f10436c1a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:35:22.949966 7f10436c1a80 Options.num_levels: 7
+2021/03/14-01:35:22.949966 7f10436c1a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:35:22.949967 7f10436c1a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:35:22.949967 7f10436c1a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:35:22.949968 7f10436c1a80 Options.compression_opts.level: -1
+2021/03/14-01:35:22.949968 7f10436c1a80 Options.compression_opts.strategy: 0
+2021/03/14-01:35:22.949969 7f10436c1a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:35:22.949970 7f10436c1a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:35:22.949970 7f10436c1a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:35:22.949971 7f10436c1a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:35:22.949971 7f10436c1a80 Options.target_file_size_base: 67108864
+2021/03/14-01:35:22.949972 7f10436c1a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:35:22.949972 7f10436c1a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:35:22.949973 7f10436c1a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:35:22.949974 7f10436c1a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:35:22.949975 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:35:22.949983 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:35:22.949984 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:35:22.949984 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:35:22.949985 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:35:22.949985 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:35:22.949986 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:35:22.949986 7f10436c1a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:35:22.949987 7f10436c1a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:35:22.949988 7f10436c1a80 Options.arena_block_size: 16777216
+2021/03/14-01:35:22.949988 7f10436c1a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:35:22.949989 7f10436c1a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:35:22.949989 7f10436c1a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:35:22.949990 7f10436c1a80 Options.disable_auto_compactions: 0
+2021/03/14-01:35:22.949992 7f10436c1a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:35:22.949992 7f10436c1a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:35:22.949993 7f10436c1a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:35:22.949993 7f10436c1a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:35:22.949994 7f10436c1a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:35:22.949995 7f10436c1a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:35:22.949995 7f10436c1a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:35:22.949996 7f10436c1a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:35:22.949997 7f10436c1a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:35:22.949997 7f10436c1a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:35:22.949998 7f10436c1a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:35:22.949998 7f10436c1a80 Options.table_properties_collectors:
+2021/03/14-01:35:22.949999 7f10436c1a80 Options.inplace_update_support: 0
+2021/03/14-01:35:22.950000 7f10436c1a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:35:22.950000 7f10436c1a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:35:22.950001 7f10436c1a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:35:22.950002 7f10436c1a80 Options.bloom_locality: 0
+2021/03/14-01:35:22.950002 7f10436c1a80 Options.max_successive_merges: 0
+2021/03/14-01:35:22.950003 7f10436c1a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:35:22.950004 7f10436c1a80 Options.paranoid_file_checks: 0
+2021/03/14-01:35:22.950005 7f10436c1a80 Options.force_consistency_checks: 0
+2021/03/14-01:35:22.950006 7f10436c1a80 Options.report_bg_io_stats: 0
+2021/03/14-01:35:22.950406 7f10436c1a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:35:22.950409 7f10436c1a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:35:22.950542 7f10436c1a80 EVENT_LOG_v1 {"time_micros": 1615682122950530, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:35:22.950548 7f10436c1a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:35:23.609464 7f10436c1a80 EVENT_LOG_v1 {"time_micros": 1615682123609460, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682208913561 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682208913561
new file mode 100644
index 0000000..e8bf4c3
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682208913561
@@ -0,0 +1,186 @@
+2021/03/14-01:35:23.629660 7f10436c1a80 RocksDB version: 5.11.3
+2021/03/14-01:35:23.629747 7f10436c1a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:35:23.629750 7f10436c1a80 Compile date Mar 13 2021
+2021/03/14-01:35:23.629753 7f10436c1a80 DB SUMMARY
+2021/03/14-01:35:23.629959 7f10436c1a80 CURRENT file: CURRENT
+2021/03/14-01:35:23.629961 7f10436c1a80 IDENTITY file: IDENTITY
+2021/03/14-01:35:23.629980 7f10436c1a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:35:23.629982 7f10436c1a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:35:23.629983 7f10436c1a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:35:23.629990 7f10436c1a80 Options.error_if_exists: 0
+2021/03/14-01:35:23.629991 7f10436c1a80 Options.create_if_missing: 1
+2021/03/14-01:35:23.629992 7f10436c1a80 Options.paranoid_checks: 1
+2021/03/14-01:35:23.629993 7f10436c1a80 Options.env: 0x7f104407b080
+2021/03/14-01:35:23.629994 7f10436c1a80 Options.info_log: 0x27beca0
+2021/03/14-01:35:23.629995 7f10436c1a80 Options.max_file_opening_threads: 16
+2021/03/14-01:35:23.629996 7f10436c1a80 Options.statistics: (nil)
+2021/03/14-01:35:23.629997 7f10436c1a80 Options.use_fsync: 0
+2021/03/14-01:35:23.629998 7f10436c1a80 Options.max_log_file_size: 0
+2021/03/14-01:35:23.629999 7f10436c1a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:35:23.630000 7f10436c1a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:35:23.630001 7f10436c1a80 Options.keep_log_file_num: 1000
+2021/03/14-01:35:23.630002 7f10436c1a80 Options.recycle_log_file_num: 0
+2021/03/14-01:35:23.630003 7f10436c1a80 Options.allow_fallocate: 1
+2021/03/14-01:35:23.630004 7f10436c1a80 Options.allow_mmap_reads: 0
+2021/03/14-01:35:23.630004 7f10436c1a80 Options.allow_mmap_writes: 0
+2021/03/14-01:35:23.630005 7f10436c1a80 Options.use_direct_reads: 0
+2021/03/14-01:35:23.630006 7f10436c1a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:35:23.630007 7f10436c1a80 Options.create_missing_column_families: 0
+2021/03/14-01:35:23.630008 7f10436c1a80 Options.db_log_dir:
+2021/03/14-01:35:23.630009 7f10436c1a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:35:23.630009 7f10436c1a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:35:23.630010 7f10436c1a80 Options.max_subcompactions: 1
+2021/03/14-01:35:23.630011 7f10436c1a80 Options.max_background_flushes: -1
+2021/03/14-01:35:23.630012 7f10436c1a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:35:23.630013 7f10436c1a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:35:23.630014 7f10436c1a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:35:23.630015 7f10436c1a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:35:23.630016 7f10436c1a80 Options.advise_random_on_open: 1
+2021/03/14-01:35:23.630017 7f10436c1a80 Options.db_write_buffer_size: 0
+2021/03/14-01:35:23.630017 7f10436c1a80 Options.write_buffer_manager: 0x27a6b90
+2021/03/14-01:35:23.630018 7f10436c1a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:35:23.630019 7f10436c1a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:35:23.630020 7f10436c1a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:35:23.630021 7f10436c1a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:35:23.630022 7f10436c1a80 Options.rate_limiter: (nil)
+2021/03/14-01:35:23.630024 7f10436c1a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:35:23.630037 7f10436c1a80 Options.wal_recovery_mode: 2
+2021/03/14-01:35:23.630038 7f10436c1a80 Options.enable_thread_tracking: 0
+2021/03/14-01:35:23.630039 7f10436c1a80 Options.enable_pipelined_write: 0
+2021/03/14-01:35:23.630040 7f10436c1a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:35:23.630041 7f10436c1a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:35:23.630042 7f10436c1a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:35:23.630043 7f10436c1a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:35:23.630043 7f10436c1a80 Options.row_cache: None
+2021/03/14-01:35:23.630044 7f10436c1a80 Options.wal_filter: None
+2021/03/14-01:35:23.630045 7f10436c1a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:35:23.630046 7f10436c1a80 Options.allow_ingest_behind: 0
+2021/03/14-01:35:23.630047 7f10436c1a80 Options.preserve_deletes: 0
+2021/03/14-01:35:23.630048 7f10436c1a80 Options.two_write_queues: 0
+2021/03/14-01:35:23.630049 7f10436c1a80 Options.manual_wal_flush: 0
+2021/03/14-01:35:23.630050 7f10436c1a80 Options.max_background_jobs: 16
+2021/03/14-01:35:23.630051 7f10436c1a80 Options.max_background_compactions: -1
+2021/03/14-01:35:23.630052 7f10436c1a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:35:23.630053 7f10436c1a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:35:23.630054 7f10436c1a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:35:23.630055 7f10436c1a80 Options.max_total_wal_size: 0
+2021/03/14-01:35:23.630056 7f10436c1a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:35:23.630057 7f10436c1a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:35:23.630058 7f10436c1a80 Options.max_open_files: -1
+2021/03/14-01:35:23.630059 7f10436c1a80 Options.bytes_per_sync: 0
+2021/03/14-01:35:23.630059 7f10436c1a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:35:23.630060 7f10436c1a80 Options.compaction_readahead_size: 0
+2021/03/14-01:35:23.630061 7f10436c1a80 Compression algorithms supported:
+2021/03/14-01:35:23.630062 7f10436c1a80 Snappy supported: 1
+2021/03/14-01:35:23.630063 7f10436c1a80 Zlib supported: 1
+2021/03/14-01:35:23.630064 7f10436c1a80 Bzip supported: 1
+2021/03/14-01:35:23.630065 7f10436c1a80 LZ4 supported: 1
+2021/03/14-01:35:23.630065 7f10436c1a80 ZSTDNotFinal supported: 1
+2021/03/14-01:35:23.630072 7f10436c1a80 ZSTD supported: 1
+2021/03/14-01:35:23.630077 7f10436c1a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:35:23.630080 7f10436c1a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:35:23.630227 7f10436c1a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:35:23.630332 7f10436c1a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:35:23.630336 7f10436c1a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:35:23.630337 7f10436c1a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:35:23.630338 7f10436c1a80 Options.compaction_filter: None
+2021/03/14-01:35:23.630339 7f10436c1a80 Options.compaction_filter_factory: None
+2021/03/14-01:35:23.630340 7f10436c1a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:35:23.630341 7f10436c1a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:35:23.630363 7f10436c1a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x27b6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x279bc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:35:23.630365 7f10436c1a80 Options.write_buffer_size: 134217728
+2021/03/14-01:35:23.630366 7f10436c1a80 Options.max_write_buffer_number: 6
+2021/03/14-01:35:23.630367 7f10436c1a80 Options.compression[0]: NoCompression
+2021/03/14-01:35:23.630368 7f10436c1a80 Options.compression[1]: NoCompression
+2021/03/14-01:35:23.630369 7f10436c1a80 Options.compression[2]: Snappy
+2021/03/14-01:35:23.630370 7f10436c1a80 Options.compression[3]: Snappy
+2021/03/14-01:35:23.630370 7f10436c1a80 Options.compression[4]: Snappy
+2021/03/14-01:35:23.630371 7f10436c1a80 Options.compression[5]: Snappy
+2021/03/14-01:35:23.630372 7f10436c1a80 Options.compression[6]: Snappy
+2021/03/14-01:35:23.630373 7f10436c1a80 Options.bottommost_compression: Disabled
+2021/03/14-01:35:23.630374 7f10436c1a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:35:23.630375 7f10436c1a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:35:23.630376 7f10436c1a80 Options.num_levels: 7
+2021/03/14-01:35:23.630377 7f10436c1a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:35:23.630378 7f10436c1a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:35:23.630379 7f10436c1a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:35:23.630380 7f10436c1a80 Options.compression_opts.level: -1
+2021/03/14-01:35:23.630381 7f10436c1a80 Options.compression_opts.strategy: 0
+2021/03/14-01:35:23.630381 7f10436c1a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:35:23.630382 7f10436c1a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:35:23.630383 7f10436c1a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:35:23.630384 7f10436c1a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:35:23.630385 7f10436c1a80 Options.target_file_size_base: 67108864
+2021/03/14-01:35:23.630386 7f10436c1a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:35:23.630387 7f10436c1a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:35:23.630388 7f10436c1a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:35:23.630389 7f10436c1a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:35:23.630391 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:35:23.630404 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:35:23.630406 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:35:23.630407 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:35:23.630407 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:35:23.630408 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:35:23.630409 7f10436c1a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:35:23.630410 7f10436c1a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:35:23.630411 7f10436c1a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:35:23.630412 7f10436c1a80 Options.arena_block_size: 16777216
+2021/03/14-01:35:23.630413 7f10436c1a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:35:23.630414 7f10436c1a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:35:23.630415 7f10436c1a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:35:23.630415 7f10436c1a80 Options.disable_auto_compactions: 0
+2021/03/14-01:35:23.630418 7f10436c1a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:35:23.630419 7f10436c1a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:35:23.630420 7f10436c1a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:35:23.630421 7f10436c1a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:35:23.630421 7f10436c1a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:35:23.630422 7f10436c1a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:35:23.630423 7f10436c1a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:35:23.630425 7f10436c1a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:35:23.630426 7f10436c1a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:35:23.630427 7f10436c1a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:35:23.630427 7f10436c1a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:35:23.630428 7f10436c1a80 Options.table_properties_collectors:
+2021/03/14-01:35:23.630429 7f10436c1a80 Options.inplace_update_support: 0
+2021/03/14-01:35:23.630430 7f10436c1a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:35:23.630431 7f10436c1a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:35:23.630432 7f10436c1a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:35:23.630433 7f10436c1a80 Options.bloom_locality: 0
+2021/03/14-01:35:23.630434 7f10436c1a80 Options.max_successive_merges: 0
+2021/03/14-01:35:23.630435 7f10436c1a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:35:23.630436 7f10436c1a80 Options.paranoid_file_checks: 0
+2021/03/14-01:35:23.630437 7f10436c1a80 Options.force_consistency_checks: 0
+2021/03/14-01:35:23.630437 7f10436c1a80 Options.report_bg_io_stats: 0
+2021/03/14-01:35:23.631092 7f10436c1a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:35:23.631096 7f10436c1a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:35:23.631324 7f10436c1a80 EVENT_LOG_v1 {"time_micros": 1615682123631305, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:35:23.631333 7f10436c1a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:35:24.292802 7f10436c1a80 EVENT_LOG_v1 {"time_micros": 1615682124292798, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682209593164 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682209593164
new file mode 100644
index 0000000..26f7c9f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682209593164
@@ -0,0 +1,186 @@
+2021/03/14-01:36:48.914080 7fd90f08da80 RocksDB version: 5.11.3
+2021/03/14-01:36:48.914153 7fd90f08da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:36:48.914155 7fd90f08da80 Compile date Mar 13 2021
+2021/03/14-01:36:48.914157 7fd90f08da80 DB SUMMARY
+2021/03/14-01:36:48.914320 7fd90f08da80 CURRENT file: CURRENT
+2021/03/14-01:36:48.914321 7fd90f08da80 IDENTITY file: IDENTITY
+2021/03/14-01:36:48.914336 7fd90f08da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:36:48.914338 7fd90f08da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:36:48.914339 7fd90f08da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:36:48.914344 7fd90f08da80 Options.error_if_exists: 0
+2021/03/14-01:36:48.914345 7fd90f08da80 Options.create_if_missing: 1
+2021/03/14-01:36:48.914346 7fd90f08da80 Options.paranoid_checks: 1
+2021/03/14-01:36:48.914346 7fd90f08da80 Options.env: 0x7fd90fa47080
+2021/03/14-01:36:48.914347 7fd90f08da80 Options.info_log: 0x28a2ca0
+2021/03/14-01:36:48.914348 7fd90f08da80 Options.max_file_opening_threads: 16
+2021/03/14-01:36:48.914348 7fd90f08da80 Options.statistics: (nil)
+2021/03/14-01:36:48.914349 7fd90f08da80 Options.use_fsync: 0
+2021/03/14-01:36:48.914350 7fd90f08da80 Options.max_log_file_size: 0
+2021/03/14-01:36:48.914351 7fd90f08da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:36:48.914351 7fd90f08da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:36:48.914352 7fd90f08da80 Options.keep_log_file_num: 1000
+2021/03/14-01:36:48.914353 7fd90f08da80 Options.recycle_log_file_num: 0
+2021/03/14-01:36:48.914353 7fd90f08da80 Options.allow_fallocate: 1
+2021/03/14-01:36:48.914354 7fd90f08da80 Options.allow_mmap_reads: 0
+2021/03/14-01:36:48.914355 7fd90f08da80 Options.allow_mmap_writes: 0
+2021/03/14-01:36:48.914355 7fd90f08da80 Options.use_direct_reads: 0
+2021/03/14-01:36:48.914356 7fd90f08da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:36:48.914356 7fd90f08da80 Options.create_missing_column_families: 0
+2021/03/14-01:36:48.914357 7fd90f08da80 Options.db_log_dir:
+2021/03/14-01:36:48.914358 7fd90f08da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:36:48.914358 7fd90f08da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:36:48.914359 7fd90f08da80 Options.max_subcompactions: 1
+2021/03/14-01:36:48.914360 7fd90f08da80 Options.max_background_flushes: -1
+2021/03/14-01:36:48.914360 7fd90f08da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:36:48.914361 7fd90f08da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:36:48.914362 7fd90f08da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:36:48.914362 7fd90f08da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:36:48.914363 7fd90f08da80 Options.advise_random_on_open: 1
+2021/03/14-01:36:48.914364 7fd90f08da80 Options.db_write_buffer_size: 0
+2021/03/14-01:36:48.914364 7fd90f08da80 Options.write_buffer_manager: 0x288ab90
+2021/03/14-01:36:48.914365 7fd90f08da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:36:48.914366 7fd90f08da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:36:48.914366 7fd90f08da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:36:48.914367 7fd90f08da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:36:48.914367 7fd90f08da80 Options.rate_limiter: (nil)
+2021/03/14-01:36:48.914369 7fd90f08da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:36:48.914379 7fd90f08da80 Options.wal_recovery_mode: 2
+2021/03/14-01:36:48.914380 7fd90f08da80 Options.enable_thread_tracking: 0
+2021/03/14-01:36:48.914381 7fd90f08da80 Options.enable_pipelined_write: 0
+2021/03/14-01:36:48.914381 7fd90f08da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:36:48.914382 7fd90f08da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:36:48.914382 7fd90f08da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:36:48.914383 7fd90f08da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:36:48.914384 7fd90f08da80 Options.row_cache: None
+2021/03/14-01:36:48.914384 7fd90f08da80 Options.wal_filter: None
+2021/03/14-01:36:48.914385 7fd90f08da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:36:48.914386 7fd90f08da80 Options.allow_ingest_behind: 0
+2021/03/14-01:36:48.914386 7fd90f08da80 Options.preserve_deletes: 0
+2021/03/14-01:36:48.914387 7fd90f08da80 Options.two_write_queues: 0
+2021/03/14-01:36:48.914388 7fd90f08da80 Options.manual_wal_flush: 0
+2021/03/14-01:36:48.914389 7fd90f08da80 Options.max_background_jobs: 16
+2021/03/14-01:36:48.914390 7fd90f08da80 Options.max_background_compactions: -1
+2021/03/14-01:36:48.914390 7fd90f08da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:36:48.914391 7fd90f08da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:36:48.914392 7fd90f08da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:36:48.914392 7fd90f08da80 Options.max_total_wal_size: 0
+2021/03/14-01:36:48.914393 7fd90f08da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:36:48.914394 7fd90f08da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:36:48.914394 7fd90f08da80 Options.max_open_files: -1
+2021/03/14-01:36:48.914395 7fd90f08da80 Options.bytes_per_sync: 0
+2021/03/14-01:36:48.914396 7fd90f08da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:36:48.914396 7fd90f08da80 Options.compaction_readahead_size: 0
+2021/03/14-01:36:48.914397 7fd90f08da80 Compression algorithms supported:
+2021/03/14-01:36:48.914398 7fd90f08da80 Snappy supported: 1
+2021/03/14-01:36:48.914398 7fd90f08da80 Zlib supported: 1
+2021/03/14-01:36:48.914399 7fd90f08da80 Bzip supported: 1
+2021/03/14-01:36:48.914400 7fd90f08da80 LZ4 supported: 1
+2021/03/14-01:36:48.914400 7fd90f08da80 ZSTDNotFinal supported: 1
+2021/03/14-01:36:48.914406 7fd90f08da80 ZSTD supported: 1
+2021/03/14-01:36:48.914410 7fd90f08da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:36:48.914412 7fd90f08da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:36:48.914564 7fd90f08da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:36:48.914638 7fd90f08da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:36:48.914640 7fd90f08da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:36:48.914641 7fd90f08da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:36:48.914642 7fd90f08da80 Options.compaction_filter: None
+2021/03/14-01:36:48.914643 7fd90f08da80 Options.compaction_filter_factory: None
+2021/03/14-01:36:48.914644 7fd90f08da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:36:48.914645 7fd90f08da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:36:48.914662 7fd90f08da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x289a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x287fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:36:48.914663 7fd90f08da80 Options.write_buffer_size: 134217728
+2021/03/14-01:36:48.914664 7fd90f08da80 Options.max_write_buffer_number: 6
+2021/03/14-01:36:48.914665 7fd90f08da80 Options.compression[0]: NoCompression
+2021/03/14-01:36:48.914666 7fd90f08da80 Options.compression[1]: NoCompression
+2021/03/14-01:36:48.914666 7fd90f08da80 Options.compression[2]: Snappy
+2021/03/14-01:36:48.914667 7fd90f08da80 Options.compression[3]: Snappy
+2021/03/14-01:36:48.914668 7fd90f08da80 Options.compression[4]: Snappy
+2021/03/14-01:36:48.914668 7fd90f08da80 Options.compression[5]: Snappy
+2021/03/14-01:36:48.914669 7fd90f08da80 Options.compression[6]: Snappy
+2021/03/14-01:36:48.914670 7fd90f08da80 Options.bottommost_compression: Disabled
+2021/03/14-01:36:48.914671 7fd90f08da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:36:48.914671 7fd90f08da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:36:48.914672 7fd90f08da80 Options.num_levels: 7
+2021/03/14-01:36:48.914673 7fd90f08da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:36:48.914673 7fd90f08da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:36:48.914674 7fd90f08da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:36:48.914688 7fd90f08da80 Options.compression_opts.level: -1
+2021/03/14-01:36:48.914688 7fd90f08da80 Options.compression_opts.strategy: 0
+2021/03/14-01:36:48.914689 7fd90f08da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:36:48.914690 7fd90f08da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:36:48.914690 7fd90f08da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:36:48.914691 7fd90f08da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:36:48.914692 7fd90f08da80 Options.target_file_size_base: 67108864
+2021/03/14-01:36:48.914692 7fd90f08da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:36:48.914693 7fd90f08da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:36:48.914694 7fd90f08da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:36:48.914694 7fd90f08da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:36:48.914696 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:36:48.914705 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:36:48.914706 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:36:48.914706 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:36:48.914707 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:36:48.914708 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:36:48.914708 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:36:48.914709 7fd90f08da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:36:48.914710 7fd90f08da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:36:48.914710 7fd90f08da80 Options.arena_block_size: 16777216
+2021/03/14-01:36:48.914711 7fd90f08da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:36:48.914712 7fd90f08da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:36:48.914712 7fd90f08da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:36:48.914713 7fd90f08da80 Options.disable_auto_compactions: 0
+2021/03/14-01:36:48.914715 7fd90f08da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:36:48.914715 7fd90f08da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:36:48.914716 7fd90f08da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:36:48.914717 7fd90f08da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:36:48.914717 7fd90f08da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:36:48.914718 7fd90f08da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:36:48.914719 7fd90f08da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:36:48.914720 7fd90f08da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:36:48.914720 7fd90f08da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:36:48.914721 7fd90f08da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:36:48.914722 7fd90f08da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:36:48.914722 7fd90f08da80 Options.table_properties_collectors:
+2021/03/14-01:36:48.914723 7fd90f08da80 Options.inplace_update_support: 0
+2021/03/14-01:36:48.914724 7fd90f08da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:36:48.914724 7fd90f08da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:36:48.914725 7fd90f08da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:36:48.914726 7fd90f08da80 Options.bloom_locality: 0
+2021/03/14-01:36:48.914726 7fd90f08da80 Options.max_successive_merges: 0
+2021/03/14-01:36:48.914727 7fd90f08da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:36:48.914728 7fd90f08da80 Options.paranoid_file_checks: 0
+2021/03/14-01:36:48.914728 7fd90f08da80 Options.force_consistency_checks: 0
+2021/03/14-01:36:48.914729 7fd90f08da80 Options.report_bg_io_stats: 0
+2021/03/14-01:36:48.915211 7fd90f08da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:36:48.915214 7fd90f08da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:36:48.915391 7fd90f08da80 EVENT_LOG_v1 {"time_micros": 1615682208915377, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:36:48.915398 7fd90f08da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:36:49.581057 7fd90f08da80 EVENT_LOG_v1 {"time_micros": 1615682209581053, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682210268375 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682210268375
new file mode 100644
index 0000000..8db4ed0
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682210268375
@@ -0,0 +1,186 @@
+2021/03/14-01:36:49.593547 7fd90f08da80 RocksDB version: 5.11.3
+2021/03/14-01:36:49.593600 7fd90f08da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:36:49.593602 7fd90f08da80 Compile date Mar 13 2021
+2021/03/14-01:36:49.593604 7fd90f08da80 DB SUMMARY
+2021/03/14-01:36:49.593735 7fd90f08da80 CURRENT file: CURRENT
+2021/03/14-01:36:49.593736 7fd90f08da80 IDENTITY file: IDENTITY
+2021/03/14-01:36:49.593748 7fd90f08da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:36:49.593749 7fd90f08da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:36:49.593750 7fd90f08da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:36:49.593755 7fd90f08da80 Options.error_if_exists: 0
+2021/03/14-01:36:49.593756 7fd90f08da80 Options.create_if_missing: 1
+2021/03/14-01:36:49.593756 7fd90f08da80 Options.paranoid_checks: 1
+2021/03/14-01:36:49.593757 7fd90f08da80 Options.env: 0x7fd90fa47080
+2021/03/14-01:36:49.593757 7fd90f08da80 Options.info_log: 0x28a2ca0
+2021/03/14-01:36:49.593758 7fd90f08da80 Options.max_file_opening_threads: 16
+2021/03/14-01:36:49.593759 7fd90f08da80 Options.statistics: (nil)
+2021/03/14-01:36:49.593759 7fd90f08da80 Options.use_fsync: 0
+2021/03/14-01:36:49.593760 7fd90f08da80 Options.max_log_file_size: 0
+2021/03/14-01:36:49.593760 7fd90f08da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:36:49.593761 7fd90f08da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:36:49.593762 7fd90f08da80 Options.keep_log_file_num: 1000
+2021/03/14-01:36:49.593762 7fd90f08da80 Options.recycle_log_file_num: 0
+2021/03/14-01:36:49.593763 7fd90f08da80 Options.allow_fallocate: 1
+2021/03/14-01:36:49.593764 7fd90f08da80 Options.allow_mmap_reads: 0
+2021/03/14-01:36:49.593764 7fd90f08da80 Options.allow_mmap_writes: 0
+2021/03/14-01:36:49.593765 7fd90f08da80 Options.use_direct_reads: 0
+2021/03/14-01:36:49.593765 7fd90f08da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:36:49.593766 7fd90f08da80 Options.create_missing_column_families: 0
+2021/03/14-01:36:49.593766 7fd90f08da80 Options.db_log_dir:
+2021/03/14-01:36:49.593767 7fd90f08da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:36:49.593767 7fd90f08da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:36:49.593768 7fd90f08da80 Options.max_subcompactions: 1
+2021/03/14-01:36:49.593768 7fd90f08da80 Options.max_background_flushes: -1
+2021/03/14-01:36:49.593769 7fd90f08da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:36:49.593770 7fd90f08da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:36:49.593770 7fd90f08da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:36:49.593771 7fd90f08da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:36:49.593771 7fd90f08da80 Options.advise_random_on_open: 1
+2021/03/14-01:36:49.593772 7fd90f08da80 Options.db_write_buffer_size: 0
+2021/03/14-01:36:49.593772 7fd90f08da80 Options.write_buffer_manager: 0x288ab90
+2021/03/14-01:36:49.593773 7fd90f08da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:36:49.593774 7fd90f08da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:36:49.593774 7fd90f08da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:36:49.593775 7fd90f08da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:36:49.593775 7fd90f08da80 Options.rate_limiter: (nil)
+2021/03/14-01:36:49.593777 7fd90f08da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:36:49.593785 7fd90f08da80 Options.wal_recovery_mode: 2
+2021/03/14-01:36:49.593785 7fd90f08da80 Options.enable_thread_tracking: 0
+2021/03/14-01:36:49.593786 7fd90f08da80 Options.enable_pipelined_write: 0
+2021/03/14-01:36:49.593786 7fd90f08da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:36:49.593787 7fd90f08da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:36:49.593788 7fd90f08da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:36:49.593788 7fd90f08da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:36:49.593789 7fd90f08da80 Options.row_cache: None
+2021/03/14-01:36:49.593789 7fd90f08da80 Options.wal_filter: None
+2021/03/14-01:36:49.593790 7fd90f08da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:36:49.593790 7fd90f08da80 Options.allow_ingest_behind: 0
+2021/03/14-01:36:49.593791 7fd90f08da80 Options.preserve_deletes: 0
+2021/03/14-01:36:49.593792 7fd90f08da80 Options.two_write_queues: 0
+2021/03/14-01:36:49.593792 7fd90f08da80 Options.manual_wal_flush: 0
+2021/03/14-01:36:49.593793 7fd90f08da80 Options.max_background_jobs: 16
+2021/03/14-01:36:49.593794 7fd90f08da80 Options.max_background_compactions: -1
+2021/03/14-01:36:49.593794 7fd90f08da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:36:49.593795 7fd90f08da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:36:49.593795 7fd90f08da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:36:49.593796 7fd90f08da80 Options.max_total_wal_size: 0
+2021/03/14-01:36:49.593797 7fd90f08da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:36:49.593797 7fd90f08da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:36:49.593798 7fd90f08da80 Options.max_open_files: -1
+2021/03/14-01:36:49.593798 7fd90f08da80 Options.bytes_per_sync: 0
+2021/03/14-01:36:49.593799 7fd90f08da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:36:49.593799 7fd90f08da80 Options.compaction_readahead_size: 0
+2021/03/14-01:36:49.593800 7fd90f08da80 Compression algorithms supported:
+2021/03/14-01:36:49.593801 7fd90f08da80 Snappy supported: 1
+2021/03/14-01:36:49.593801 7fd90f08da80 Zlib supported: 1
+2021/03/14-01:36:49.593802 7fd90f08da80 Bzip supported: 1
+2021/03/14-01:36:49.593802 7fd90f08da80 LZ4 supported: 1
+2021/03/14-01:36:49.593803 7fd90f08da80 ZSTDNotFinal supported: 1
+2021/03/14-01:36:49.593807 7fd90f08da80 ZSTD supported: 1
+2021/03/14-01:36:49.593809 7fd90f08da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:36:49.593811 7fd90f08da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:36:49.593904 7fd90f08da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:36:49.593958 7fd90f08da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:36:49.593960 7fd90f08da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:36:49.593961 7fd90f08da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:36:49.593961 7fd90f08da80 Options.compaction_filter: None
+2021/03/14-01:36:49.593962 7fd90f08da80 Options.compaction_filter_factory: None
+2021/03/14-01:36:49.593963 7fd90f08da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:36:49.593964 7fd90f08da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:36:49.593978 7fd90f08da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x289a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x287fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:36:49.593979 7fd90f08da80 Options.write_buffer_size: 134217728
+2021/03/14-01:36:49.593980 7fd90f08da80 Options.max_write_buffer_number: 6
+2021/03/14-01:36:49.593981 7fd90f08da80 Options.compression[0]: NoCompression
+2021/03/14-01:36:49.593981 7fd90f08da80 Options.compression[1]: NoCompression
+2021/03/14-01:36:49.593982 7fd90f08da80 Options.compression[2]: Snappy
+2021/03/14-01:36:49.593983 7fd90f08da80 Options.compression[3]: Snappy
+2021/03/14-01:36:49.593983 7fd90f08da80 Options.compression[4]: Snappy
+2021/03/14-01:36:49.593984 7fd90f08da80 Options.compression[5]: Snappy
+2021/03/14-01:36:49.593984 7fd90f08da80 Options.compression[6]: Snappy
+2021/03/14-01:36:49.593985 7fd90f08da80 Options.bottommost_compression: Disabled
+2021/03/14-01:36:49.593986 7fd90f08da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:36:49.593986 7fd90f08da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:36:49.593987 7fd90f08da80 Options.num_levels: 7
+2021/03/14-01:36:49.593987 7fd90f08da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:36:49.593988 7fd90f08da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:36:49.593989 7fd90f08da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:36:49.593989 7fd90f08da80 Options.compression_opts.level: -1
+2021/03/14-01:36:49.593990 7fd90f08da80 Options.compression_opts.strategy: 0
+2021/03/14-01:36:49.593990 7fd90f08da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:36:49.593991 7fd90f08da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:36:49.593991 7fd90f08da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:36:49.593992 7fd90f08da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:36:49.593993 7fd90f08da80 Options.target_file_size_base: 67108864
+2021/03/14-01:36:49.593993 7fd90f08da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:36:49.593994 7fd90f08da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:36:49.593994 7fd90f08da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:36:49.593995 7fd90f08da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:36:49.593996 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:36:49.594004 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:36:49.594005 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:36:49.594005 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:36:49.594006 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:36:49.594007 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:36:49.594007 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:36:49.594008 7fd90f08da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:36:49.594008 7fd90f08da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:36:49.594009 7fd90f08da80 Options.arena_block_size: 16777216
+2021/03/14-01:36:49.594009 7fd90f08da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:36:49.594010 7fd90f08da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:36:49.594011 7fd90f08da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:36:49.594011 7fd90f08da80 Options.disable_auto_compactions: 0
+2021/03/14-01:36:49.594013 7fd90f08da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:36:49.594013 7fd90f08da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:36:49.594014 7fd90f08da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:36:49.594014 7fd90f08da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:36:49.594015 7fd90f08da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:36:49.594016 7fd90f08da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:36:49.594016 7fd90f08da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:36:49.594017 7fd90f08da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:36:49.594018 7fd90f08da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:36:49.594018 7fd90f08da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:36:49.594019 7fd90f08da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:36:49.594020 7fd90f08da80 Options.table_properties_collectors:
+2021/03/14-01:36:49.594020 7fd90f08da80 Options.inplace_update_support: 0
+2021/03/14-01:36:49.594021 7fd90f08da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:36:49.594021 7fd90f08da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:36:49.594022 7fd90f08da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:36:49.594023 7fd90f08da80 Options.bloom_locality: 0
+2021/03/14-01:36:49.594023 7fd90f08da80 Options.max_successive_merges: 0
+2021/03/14-01:36:49.594024 7fd90f08da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:36:49.594024 7fd90f08da80 Options.paranoid_file_checks: 0
+2021/03/14-01:36:49.594025 7fd90f08da80 Options.force_consistency_checks: 0
+2021/03/14-01:36:49.594026 7fd90f08da80 Options.report_bg_io_stats: 0
+2021/03/14-01:36:49.594406 7fd90f08da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:36:49.594409 7fd90f08da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:36:49.594547 7fd90f08da80 EVENT_LOG_v1 {"time_micros": 1615682209594537, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:36:49.594552 7fd90f08da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:36:50.256198 7fd90f08da80 EVENT_LOG_v1 {"time_micros": 1615682210256195, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682210942502 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682210942502
new file mode 100644
index 0000000..26c004f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682210942502
@@ -0,0 +1,186 @@
+2021/03/14-01:36:50.268741 7fd90f08da80 RocksDB version: 5.11.3
+2021/03/14-01:36:50.268829 7fd90f08da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:36:50.268831 7fd90f08da80 Compile date Mar 13 2021
+2021/03/14-01:36:50.268833 7fd90f08da80 DB SUMMARY
+2021/03/14-01:36:50.268963 7fd90f08da80 CURRENT file: CURRENT
+2021/03/14-01:36:50.268964 7fd90f08da80 IDENTITY file: IDENTITY
+2021/03/14-01:36:50.268976 7fd90f08da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:36:50.268977 7fd90f08da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:36:50.268978 7fd90f08da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:36:50.268983 7fd90f08da80 Options.error_if_exists: 0
+2021/03/14-01:36:50.268984 7fd90f08da80 Options.create_if_missing: 1
+2021/03/14-01:36:50.268984 7fd90f08da80 Options.paranoid_checks: 1
+2021/03/14-01:36:50.268985 7fd90f08da80 Options.env: 0x7fd90fa47080
+2021/03/14-01:36:50.268986 7fd90f08da80 Options.info_log: 0x28a2ca0
+2021/03/14-01:36:50.268986 7fd90f08da80 Options.max_file_opening_threads: 16
+2021/03/14-01:36:50.268987 7fd90f08da80 Options.statistics: (nil)
+2021/03/14-01:36:50.268987 7fd90f08da80 Options.use_fsync: 0
+2021/03/14-01:36:50.268988 7fd90f08da80 Options.max_log_file_size: 0
+2021/03/14-01:36:50.268989 7fd90f08da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:36:50.268989 7fd90f08da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:36:50.268990 7fd90f08da80 Options.keep_log_file_num: 1000
+2021/03/14-01:36:50.268990 7fd90f08da80 Options.recycle_log_file_num: 0
+2021/03/14-01:36:50.268991 7fd90f08da80 Options.allow_fallocate: 1
+2021/03/14-01:36:50.268992 7fd90f08da80 Options.allow_mmap_reads: 0
+2021/03/14-01:36:50.268992 7fd90f08da80 Options.allow_mmap_writes: 0
+2021/03/14-01:36:50.268993 7fd90f08da80 Options.use_direct_reads: 0
+2021/03/14-01:36:50.268993 7fd90f08da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:36:50.268994 7fd90f08da80 Options.create_missing_column_families: 0
+2021/03/14-01:36:50.268994 7fd90f08da80 Options.db_log_dir:
+2021/03/14-01:36:50.268995 7fd90f08da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:36:50.268995 7fd90f08da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:36:50.268996 7fd90f08da80 Options.max_subcompactions: 1
+2021/03/14-01:36:50.268997 7fd90f08da80 Options.max_background_flushes: -1
+2021/03/14-01:36:50.268997 7fd90f08da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:36:50.268998 7fd90f08da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:36:50.268998 7fd90f08da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:36:50.268999 7fd90f08da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:36:50.268999 7fd90f08da80 Options.advise_random_on_open: 1
+2021/03/14-01:36:50.269000 7fd90f08da80 Options.db_write_buffer_size: 0
+2021/03/14-01:36:50.269001 7fd90f08da80 Options.write_buffer_manager: 0x288ab90
+2021/03/14-01:36:50.269001 7fd90f08da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:36:50.269002 7fd90f08da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:36:50.269002 7fd90f08da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:36:50.269003 7fd90f08da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:36:50.269003 7fd90f08da80 Options.rate_limiter: (nil)
+2021/03/14-01:36:50.269005 7fd90f08da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:36:50.269012 7fd90f08da80 Options.wal_recovery_mode: 2
+2021/03/14-01:36:50.269013 7fd90f08da80 Options.enable_thread_tracking: 0
+2021/03/14-01:36:50.269014 7fd90f08da80 Options.enable_pipelined_write: 0
+2021/03/14-01:36:50.269014 7fd90f08da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:36:50.269015 7fd90f08da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:36:50.269015 7fd90f08da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:36:50.269016 7fd90f08da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:36:50.269017 7fd90f08da80 Options.row_cache: None
+2021/03/14-01:36:50.269017 7fd90f08da80 Options.wal_filter: None
+2021/03/14-01:36:50.269018 7fd90f08da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:36:50.269018 7fd90f08da80 Options.allow_ingest_behind: 0
+2021/03/14-01:36:50.269019 7fd90f08da80 Options.preserve_deletes: 0
+2021/03/14-01:36:50.269019 7fd90f08da80 Options.two_write_queues: 0
+2021/03/14-01:36:50.269020 7fd90f08da80 Options.manual_wal_flush: 0
+2021/03/14-01:36:50.269021 7fd90f08da80 Options.max_background_jobs: 16
+2021/03/14-01:36:50.269022 7fd90f08da80 Options.max_background_compactions: -1
+2021/03/14-01:36:50.269022 7fd90f08da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:36:50.269023 7fd90f08da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:36:50.269023 7fd90f08da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:36:50.269024 7fd90f08da80 Options.max_total_wal_size: 0
+2021/03/14-01:36:50.269025 7fd90f08da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:36:50.269025 7fd90f08da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:36:50.269026 7fd90f08da80 Options.max_open_files: -1
+2021/03/14-01:36:50.269026 7fd90f08da80 Options.bytes_per_sync: 0
+2021/03/14-01:36:50.269027 7fd90f08da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:36:50.269027 7fd90f08da80 Options.compaction_readahead_size: 0
+2021/03/14-01:36:50.269028 7fd90f08da80 Compression algorithms supported:
+2021/03/14-01:36:50.269029 7fd90f08da80 Snappy supported: 1
+2021/03/14-01:36:50.269029 7fd90f08da80 Zlib supported: 1
+2021/03/14-01:36:50.269030 7fd90f08da80 Bzip supported: 1
+2021/03/14-01:36:50.269030 7fd90f08da80 LZ4 supported: 1
+2021/03/14-01:36:50.269031 7fd90f08da80 ZSTDNotFinal supported: 1
+2021/03/14-01:36:50.269035 7fd90f08da80 ZSTD supported: 1
+2021/03/14-01:36:50.269038 7fd90f08da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:36:50.269039 7fd90f08da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:36:50.269132 7fd90f08da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:36:50.269186 7fd90f08da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:36:50.269187 7fd90f08da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:36:50.269188 7fd90f08da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:36:50.269189 7fd90f08da80 Options.compaction_filter: None
+2021/03/14-01:36:50.269190 7fd90f08da80 Options.compaction_filter_factory: None
+2021/03/14-01:36:50.269190 7fd90f08da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:36:50.269191 7fd90f08da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:36:50.269206 7fd90f08da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x289a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x287fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:36:50.269207 7fd90f08da80 Options.write_buffer_size: 134217728
+2021/03/14-01:36:50.269207 7fd90f08da80 Options.max_write_buffer_number: 6
+2021/03/14-01:36:50.269208 7fd90f08da80 Options.compression[0]: NoCompression
+2021/03/14-01:36:50.269209 7fd90f08da80 Options.compression[1]: NoCompression
+2021/03/14-01:36:50.269209 7fd90f08da80 Options.compression[2]: Snappy
+2021/03/14-01:36:50.269210 7fd90f08da80 Options.compression[3]: Snappy
+2021/03/14-01:36:50.269211 7fd90f08da80 Options.compression[4]: Snappy
+2021/03/14-01:36:50.269211 7fd90f08da80 Options.compression[5]: Snappy
+2021/03/14-01:36:50.269212 7fd90f08da80 Options.compression[6]: Snappy
+2021/03/14-01:36:50.269212 7fd90f08da80 Options.bottommost_compression: Disabled
+2021/03/14-01:36:50.269213 7fd90f08da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:36:50.269214 7fd90f08da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:36:50.269214 7fd90f08da80 Options.num_levels: 7
+2021/03/14-01:36:50.269215 7fd90f08da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:36:50.269215 7fd90f08da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:36:50.269216 7fd90f08da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:36:50.269217 7fd90f08da80 Options.compression_opts.level: -1
+2021/03/14-01:36:50.269217 7fd90f08da80 Options.compression_opts.strategy: 0
+2021/03/14-01:36:50.269218 7fd90f08da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:36:50.269218 7fd90f08da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:36:50.269219 7fd90f08da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:36:50.269219 7fd90f08da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:36:50.269220 7fd90f08da80 Options.target_file_size_base: 67108864
+2021/03/14-01:36:50.269221 7fd90f08da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:36:50.269221 7fd90f08da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:36:50.269222 7fd90f08da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:36:50.269222 7fd90f08da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:36:50.269224 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:36:50.269232 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:36:50.269232 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:36:50.269233 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:36:50.269234 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:36:50.269234 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:36:50.269235 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:36:50.269235 7fd90f08da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:36:50.269236 7fd90f08da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:36:50.269236 7fd90f08da80 Options.arena_block_size: 16777216
+2021/03/14-01:36:50.269237 7fd90f08da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:36:50.269248 7fd90f08da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:36:50.269249 7fd90f08da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:36:50.269250 7fd90f08da80 Options.disable_auto_compactions: 0
+2021/03/14-01:36:50.269252 7fd90f08da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:36:50.269253 7fd90f08da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:36:50.269254 7fd90f08da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:36:50.269255 7fd90f08da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:36:50.269256 7fd90f08da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:36:50.269257 7fd90f08da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:36:50.269258 7fd90f08da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:36:50.269260 7fd90f08da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:36:50.269261 7fd90f08da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:36:50.269261 7fd90f08da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:36:50.269262 7fd90f08da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:36:50.269262 7fd90f08da80 Options.table_properties_collectors:
+2021/03/14-01:36:50.269263 7fd90f08da80 Options.inplace_update_support: 0
+2021/03/14-01:36:50.269263 7fd90f08da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:36:50.269264 7fd90f08da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:36:50.269265 7fd90f08da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:36:50.269266 7fd90f08da80 Options.bloom_locality: 0
+2021/03/14-01:36:50.269266 7fd90f08da80 Options.max_successive_merges: 0
+2021/03/14-01:36:50.269267 7fd90f08da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:36:50.269267 7fd90f08da80 Options.paranoid_file_checks: 0
+2021/03/14-01:36:50.269268 7fd90f08da80 Options.force_consistency_checks: 0
+2021/03/14-01:36:50.269268 7fd90f08da80 Options.report_bg_io_stats: 0
+2021/03/14-01:36:50.269641 7fd90f08da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:36:50.269644 7fd90f08da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:36:50.269790 7fd90f08da80 EVENT_LOG_v1 {"time_micros": 1615682210269780, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:36:50.269795 7fd90f08da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:36:50.930367 7fd90f08da80 EVENT_LOG_v1 {"time_micros": 1615682210930364, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682388482317 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682388482317
new file mode 100644
index 0000000..00d041c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682388482317
@@ -0,0 +1,186 @@
+2021/03/14-01:36:50.942874 7fd90f08da80 RocksDB version: 5.11.3
+2021/03/14-01:36:50.942926 7fd90f08da80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:36:50.942928 7fd90f08da80 Compile date Mar 13 2021
+2021/03/14-01:36:50.942930 7fd90f08da80 DB SUMMARY
+2021/03/14-01:36:50.943060 7fd90f08da80 CURRENT file: CURRENT
+2021/03/14-01:36:50.943061 7fd90f08da80 IDENTITY file: IDENTITY
+2021/03/14-01:36:50.943074 7fd90f08da80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:36:50.943075 7fd90f08da80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:36:50.943076 7fd90f08da80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:36:50.943081 7fd90f08da80 Options.error_if_exists: 0
+2021/03/14-01:36:50.943082 7fd90f08da80 Options.create_if_missing: 1
+2021/03/14-01:36:50.943082 7fd90f08da80 Options.paranoid_checks: 1
+2021/03/14-01:36:50.943083 7fd90f08da80 Options.env: 0x7fd90fa47080
+2021/03/14-01:36:50.943083 7fd90f08da80 Options.info_log: 0x28a2ca0
+2021/03/14-01:36:50.943084 7fd90f08da80 Options.max_file_opening_threads: 16
+2021/03/14-01:36:50.943084 7fd90f08da80 Options.statistics: (nil)
+2021/03/14-01:36:50.943085 7fd90f08da80 Options.use_fsync: 0
+2021/03/14-01:36:50.943086 7fd90f08da80 Options.max_log_file_size: 0
+2021/03/14-01:36:50.943086 7fd90f08da80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:36:50.943087 7fd90f08da80 Options.log_file_time_to_roll: 0
+2021/03/14-01:36:50.943088 7fd90f08da80 Options.keep_log_file_num: 1000
+2021/03/14-01:36:50.943088 7fd90f08da80 Options.recycle_log_file_num: 0
+2021/03/14-01:36:50.943089 7fd90f08da80 Options.allow_fallocate: 1
+2021/03/14-01:36:50.943089 7fd90f08da80 Options.allow_mmap_reads: 0
+2021/03/14-01:36:50.943090 7fd90f08da80 Options.allow_mmap_writes: 0
+2021/03/14-01:36:50.943090 7fd90f08da80 Options.use_direct_reads: 0
+2021/03/14-01:36:50.943091 7fd90f08da80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:36:50.943092 7fd90f08da80 Options.create_missing_column_families: 0
+2021/03/14-01:36:50.943092 7fd90f08da80 Options.db_log_dir:
+2021/03/14-01:36:50.943093 7fd90f08da80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:36:50.943093 7fd90f08da80 Options.table_cache_numshardbits: 6
+2021/03/14-01:36:50.943094 7fd90f08da80 Options.max_subcompactions: 1
+2021/03/14-01:36:50.943094 7fd90f08da80 Options.max_background_flushes: -1
+2021/03/14-01:36:50.943095 7fd90f08da80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:36:50.943096 7fd90f08da80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:36:50.943096 7fd90f08da80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:36:50.943097 7fd90f08da80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:36:50.943097 7fd90f08da80 Options.advise_random_on_open: 1
+2021/03/14-01:36:50.943098 7fd90f08da80 Options.db_write_buffer_size: 0
+2021/03/14-01:36:50.943098 7fd90f08da80 Options.write_buffer_manager: 0x288ab90
+2021/03/14-01:36:50.943099 7fd90f08da80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:36:50.943100 7fd90f08da80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:36:50.943100 7fd90f08da80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:36:50.943101 7fd90f08da80 Options.use_adaptive_mutex: 0
+2021/03/14-01:36:50.943101 7fd90f08da80 Options.rate_limiter: (nil)
+2021/03/14-01:36:50.943102 7fd90f08da80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:36:50.943110 7fd90f08da80 Options.wal_recovery_mode: 2
+2021/03/14-01:36:50.943111 7fd90f08da80 Options.enable_thread_tracking: 0
+2021/03/14-01:36:50.943112 7fd90f08da80 Options.enable_pipelined_write: 0
+2021/03/14-01:36:50.943112 7fd90f08da80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:36:50.943113 7fd90f08da80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:36:50.943113 7fd90f08da80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:36:50.943114 7fd90f08da80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:36:50.943115 7fd90f08da80 Options.row_cache: None
+2021/03/14-01:36:50.943115 7fd90f08da80 Options.wal_filter: None
+2021/03/14-01:36:50.943116 7fd90f08da80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:36:50.943116 7fd90f08da80 Options.allow_ingest_behind: 0
+2021/03/14-01:36:50.943117 7fd90f08da80 Options.preserve_deletes: 0
+2021/03/14-01:36:50.943117 7fd90f08da80 Options.two_write_queues: 0
+2021/03/14-01:36:50.943118 7fd90f08da80 Options.manual_wal_flush: 0
+2021/03/14-01:36:50.943119 7fd90f08da80 Options.max_background_jobs: 16
+2021/03/14-01:36:50.943120 7fd90f08da80 Options.max_background_compactions: -1
+2021/03/14-01:36:50.943120 7fd90f08da80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:36:50.943121 7fd90f08da80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:36:50.943121 7fd90f08da80 Options.delayed_write_rate : 16777216
+2021/03/14-01:36:50.943122 7fd90f08da80 Options.max_total_wal_size: 0
+2021/03/14-01:36:50.943122 7fd90f08da80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:36:50.943123 7fd90f08da80 Options.stats_dump_period_sec: 600
+2021/03/14-01:36:50.943124 7fd90f08da80 Options.max_open_files: -1
+2021/03/14-01:36:50.943124 7fd90f08da80 Options.bytes_per_sync: 0
+2021/03/14-01:36:50.943125 7fd90f08da80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:36:50.943125 7fd90f08da80 Options.compaction_readahead_size: 0
+2021/03/14-01:36:50.943126 7fd90f08da80 Compression algorithms supported:
+2021/03/14-01:36:50.943126 7fd90f08da80 Snappy supported: 1
+2021/03/14-01:36:50.943127 7fd90f08da80 Zlib supported: 1
+2021/03/14-01:36:50.943128 7fd90f08da80 Bzip supported: 1
+2021/03/14-01:36:50.943128 7fd90f08da80 LZ4 supported: 1
+2021/03/14-01:36:50.943129 7fd90f08da80 ZSTDNotFinal supported: 1
+2021/03/14-01:36:50.943133 7fd90f08da80 ZSTD supported: 1
+2021/03/14-01:36:50.943135 7fd90f08da80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:36:50.943137 7fd90f08da80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:36:50.943227 7fd90f08da80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:36:50.943302 7fd90f08da80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:36:50.943304 7fd90f08da80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:36:50.943304 7fd90f08da80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:36:50.943305 7fd90f08da80 Options.compaction_filter: None
+2021/03/14-01:36:50.943306 7fd90f08da80 Options.compaction_filter_factory: None
+2021/03/14-01:36:50.943306 7fd90f08da80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:36:50.943307 7fd90f08da80 Options.table_factory: BlockBasedTable
+2021/03/14-01:36:50.943322 7fd90f08da80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x289a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x287fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:36:50.943323 7fd90f08da80 Options.write_buffer_size: 134217728
+2021/03/14-01:36:50.943324 7fd90f08da80 Options.max_write_buffer_number: 6
+2021/03/14-01:36:50.943324 7fd90f08da80 Options.compression[0]: NoCompression
+2021/03/14-01:36:50.943325 7fd90f08da80 Options.compression[1]: NoCompression
+2021/03/14-01:36:50.943326 7fd90f08da80 Options.compression[2]: Snappy
+2021/03/14-01:36:50.943326 7fd90f08da80 Options.compression[3]: Snappy
+2021/03/14-01:36:50.943327 7fd90f08da80 Options.compression[4]: Snappy
+2021/03/14-01:36:50.943327 7fd90f08da80 Options.compression[5]: Snappy
+2021/03/14-01:36:50.943328 7fd90f08da80 Options.compression[6]: Snappy
+2021/03/14-01:36:50.943329 7fd90f08da80 Options.bottommost_compression: Disabled
+2021/03/14-01:36:50.943330 7fd90f08da80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:36:50.943330 7fd90f08da80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:36:50.943331 7fd90f08da80 Options.num_levels: 7
+2021/03/14-01:36:50.943331 7fd90f08da80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:36:50.943332 7fd90f08da80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:36:50.943333 7fd90f08da80 Options.compression_opts.window_bits: -14
+2021/03/14-01:36:50.943333 7fd90f08da80 Options.compression_opts.level: -1
+2021/03/14-01:36:50.943334 7fd90f08da80 Options.compression_opts.strategy: 0
+2021/03/14-01:36:50.943334 7fd90f08da80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:36:50.943335 7fd90f08da80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:36:50.943335 7fd90f08da80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:36:50.943336 7fd90f08da80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:36:50.943337 7fd90f08da80 Options.target_file_size_base: 67108864
+2021/03/14-01:36:50.943337 7fd90f08da80 Options.target_file_size_multiplier: 1
+2021/03/14-01:36:50.943338 7fd90f08da80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:36:50.943338 7fd90f08da80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:36:50.943339 7fd90f08da80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:36:50.943340 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:36:50.943349 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:36:50.943349 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:36:50.943350 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:36:50.943351 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:36:50.943351 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:36:50.943352 7fd90f08da80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:36:50.943352 7fd90f08da80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:36:50.943353 7fd90f08da80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:36:50.943353 7fd90f08da80 Options.arena_block_size: 16777216
+2021/03/14-01:36:50.943354 7fd90f08da80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:36:50.943355 7fd90f08da80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:36:50.943355 7fd90f08da80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:36:50.943356 7fd90f08da80 Options.disable_auto_compactions: 0
+2021/03/14-01:36:50.943357 7fd90f08da80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:36:50.943358 7fd90f08da80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:36:50.943359 7fd90f08da80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:36:50.943359 7fd90f08da80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:36:50.943360 7fd90f08da80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:36:50.943360 7fd90f08da80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:36:50.943361 7fd90f08da80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:36:50.943362 7fd90f08da80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:36:50.943363 7fd90f08da80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:36:50.943363 7fd90f08da80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:36:50.943364 7fd90f08da80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:36:50.943364 7fd90f08da80 Options.table_properties_collectors:
+2021/03/14-01:36:50.943365 7fd90f08da80 Options.inplace_update_support: 0
+2021/03/14-01:36:50.943365 7fd90f08da80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:36:50.943366 7fd90f08da80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:36:50.943367 7fd90f08da80 Options.memtable_huge_page_size: 0
+2021/03/14-01:36:50.943367 7fd90f08da80 Options.bloom_locality: 0
+2021/03/14-01:36:50.943368 7fd90f08da80 Options.max_successive_merges: 0
+2021/03/14-01:36:50.943369 7fd90f08da80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:36:50.943369 7fd90f08da80 Options.paranoid_file_checks: 0
+2021/03/14-01:36:50.943370 7fd90f08da80 Options.force_consistency_checks: 0
+2021/03/14-01:36:50.943370 7fd90f08da80 Options.report_bg_io_stats: 0
+2021/03/14-01:36:50.943758 7fd90f08da80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:36:50.943761 7fd90f08da80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:36:50.943899 7fd90f08da80 EVENT_LOG_v1 {"time_micros": 1615682210943889, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:36:50.943904 7fd90f08da80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:36:51.603272 7fd90f08da80 EVENT_LOG_v1 {"time_micros": 1615682211603269, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682389667742 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682389667742
new file mode 100644
index 0000000..c309047
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682389667742
@@ -0,0 +1,186 @@
+2021/03/14-01:39:48.482968 7fc14ea72a80 RocksDB version: 5.11.3
+2021/03/14-01:39:48.483066 7fc14ea72a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:39:48.483068 7fc14ea72a80 Compile date Mar 13 2021
+2021/03/14-01:39:48.483072 7fc14ea72a80 DB SUMMARY
+2021/03/14-01:39:48.483293 7fc14ea72a80 CURRENT file: CURRENT
+2021/03/14-01:39:48.483295 7fc14ea72a80 IDENTITY file: IDENTITY
+2021/03/14-01:39:48.483315 7fc14ea72a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:39:48.483317 7fc14ea72a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:39:48.483319 7fc14ea72a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:39:48.483326 7fc14ea72a80 Options.error_if_exists: 0
+2021/03/14-01:39:48.483327 7fc14ea72a80 Options.create_if_missing: 1
+2021/03/14-01:39:48.483328 7fc14ea72a80 Options.paranoid_checks: 1
+2021/03/14-01:39:48.483329 7fc14ea72a80 Options.env: 0x7fc14f42c080
+2021/03/14-01:39:48.483330 7fc14ea72a80 Options.info_log: 0x118aca0
+2021/03/14-01:39:48.483331 7fc14ea72a80 Options.max_file_opening_threads: 16
+2021/03/14-01:39:48.483332 7fc14ea72a80 Options.statistics: (nil)
+2021/03/14-01:39:48.483333 7fc14ea72a80 Options.use_fsync: 0
+2021/03/14-01:39:48.483334 7fc14ea72a80 Options.max_log_file_size: 0
+2021/03/14-01:39:48.483335 7fc14ea72a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:39:48.483336 7fc14ea72a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:39:48.483337 7fc14ea72a80 Options.keep_log_file_num: 1000
+2021/03/14-01:39:48.483338 7fc14ea72a80 Options.recycle_log_file_num: 0
+2021/03/14-01:39:48.483339 7fc14ea72a80 Options.allow_fallocate: 1
+2021/03/14-01:39:48.483340 7fc14ea72a80 Options.allow_mmap_reads: 0
+2021/03/14-01:39:48.483341 7fc14ea72a80 Options.allow_mmap_writes: 0
+2021/03/14-01:39:48.483341 7fc14ea72a80 Options.use_direct_reads: 0
+2021/03/14-01:39:48.483342 7fc14ea72a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:39:48.483343 7fc14ea72a80 Options.create_missing_column_families: 0
+2021/03/14-01:39:48.483344 7fc14ea72a80 Options.db_log_dir:
+2021/03/14-01:39:48.483345 7fc14ea72a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:39:48.483346 7fc14ea72a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:39:48.483347 7fc14ea72a80 Options.max_subcompactions: 1
+2021/03/14-01:39:48.483348 7fc14ea72a80 Options.max_background_flushes: -1
+2021/03/14-01:39:48.483349 7fc14ea72a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:39:48.483350 7fc14ea72a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:39:48.483350 7fc14ea72a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:39:48.483351 7fc14ea72a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:39:48.483352 7fc14ea72a80 Options.advise_random_on_open: 1
+2021/03/14-01:39:48.483353 7fc14ea72a80 Options.db_write_buffer_size: 0
+2021/03/14-01:39:48.483354 7fc14ea72a80 Options.write_buffer_manager: 0x1172b90
+2021/03/14-01:39:48.483355 7fc14ea72a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:39:48.483356 7fc14ea72a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:39:48.483357 7fc14ea72a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:39:48.483358 7fc14ea72a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:39:48.483359 7fc14ea72a80 Options.rate_limiter: (nil)
+2021/03/14-01:39:48.483361 7fc14ea72a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:39:48.483375 7fc14ea72a80 Options.wal_recovery_mode: 2
+2021/03/14-01:39:48.483377 7fc14ea72a80 Options.enable_thread_tracking: 0
+2021/03/14-01:39:48.483377 7fc14ea72a80 Options.enable_pipelined_write: 0
+2021/03/14-01:39:48.483378 7fc14ea72a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:39:48.483379 7fc14ea72a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:39:48.483380 7fc14ea72a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:39:48.483381 7fc14ea72a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:39:48.483382 7fc14ea72a80 Options.row_cache: None
+2021/03/14-01:39:48.483383 7fc14ea72a80 Options.wal_filter: None
+2021/03/14-01:39:48.483384 7fc14ea72a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:39:48.483385 7fc14ea72a80 Options.allow_ingest_behind: 0
+2021/03/14-01:39:48.483386 7fc14ea72a80 Options.preserve_deletes: 0
+2021/03/14-01:39:48.483386 7fc14ea72a80 Options.two_write_queues: 0
+2021/03/14-01:39:48.483387 7fc14ea72a80 Options.manual_wal_flush: 0
+2021/03/14-01:39:48.483389 7fc14ea72a80 Options.max_background_jobs: 16
+2021/03/14-01:39:48.483390 7fc14ea72a80 Options.max_background_compactions: -1
+2021/03/14-01:39:48.483391 7fc14ea72a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:39:48.483392 7fc14ea72a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:39:48.483393 7fc14ea72a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:39:48.483394 7fc14ea72a80 Options.max_total_wal_size: 0
+2021/03/14-01:39:48.483395 7fc14ea72a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:39:48.483396 7fc14ea72a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:39:48.483397 7fc14ea72a80 Options.max_open_files: -1
+2021/03/14-01:39:48.483398 7fc14ea72a80 Options.bytes_per_sync: 0
+2021/03/14-01:39:48.483399 7fc14ea72a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:39:48.483399 7fc14ea72a80 Options.compaction_readahead_size: 0
+2021/03/14-01:39:48.483400 7fc14ea72a80 Compression algorithms supported:
+2021/03/14-01:39:48.483401 7fc14ea72a80 Snappy supported: 1
+2021/03/14-01:39:48.483402 7fc14ea72a80 Zlib supported: 1
+2021/03/14-01:39:48.483403 7fc14ea72a80 Bzip supported: 1
+2021/03/14-01:39:48.483404 7fc14ea72a80 LZ4 supported: 1
+2021/03/14-01:39:48.483405 7fc14ea72a80 ZSTDNotFinal supported: 1
+2021/03/14-01:39:48.483411 7fc14ea72a80 ZSTD supported: 1
+2021/03/14-01:39:48.483416 7fc14ea72a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:39:48.483418 7fc14ea72a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:39:48.483591 7fc14ea72a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:39:48.483681 7fc14ea72a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:39:48.483684 7fc14ea72a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:39:48.483686 7fc14ea72a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:39:48.483687 7fc14ea72a80 Options.compaction_filter: None
+2021/03/14-01:39:48.483687 7fc14ea72a80 Options.compaction_filter_factory: None
+2021/03/14-01:39:48.483688 7fc14ea72a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:39:48.483690 7fc14ea72a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:39:48.483716 7fc14ea72a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1182520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1167c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:39:48.483717 7fc14ea72a80 Options.write_buffer_size: 134217728
+2021/03/14-01:39:48.483718 7fc14ea72a80 Options.max_write_buffer_number: 6
+2021/03/14-01:39:48.483719 7fc14ea72a80 Options.compression[0]: NoCompression
+2021/03/14-01:39:48.483720 7fc14ea72a80 Options.compression[1]: NoCompression
+2021/03/14-01:39:48.483721 7fc14ea72a80 Options.compression[2]: Snappy
+2021/03/14-01:39:48.483722 7fc14ea72a80 Options.compression[3]: Snappy
+2021/03/14-01:39:48.483723 7fc14ea72a80 Options.compression[4]: Snappy
+2021/03/14-01:39:48.483724 7fc14ea72a80 Options.compression[5]: Snappy
+2021/03/14-01:39:48.483725 7fc14ea72a80 Options.compression[6]: Snappy
+2021/03/14-01:39:48.483726 7fc14ea72a80 Options.bottommost_compression: Disabled
+2021/03/14-01:39:48.483727 7fc14ea72a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:39:48.483728 7fc14ea72a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:39:48.483729 7fc14ea72a80 Options.num_levels: 7
+2021/03/14-01:39:48.483730 7fc14ea72a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:39:48.483731 7fc14ea72a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:39:48.483732 7fc14ea72a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:39:48.483733 7fc14ea72a80 Options.compression_opts.level: -1
+2021/03/14-01:39:48.483734 7fc14ea72a80 Options.compression_opts.strategy: 0
+2021/03/14-01:39:48.483735 7fc14ea72a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:39:48.483736 7fc14ea72a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:39:48.483737 7fc14ea72a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:39:48.483737 7fc14ea72a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:39:48.483738 7fc14ea72a80 Options.target_file_size_base: 67108864
+2021/03/14-01:39:48.483739 7fc14ea72a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:39:48.483740 7fc14ea72a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:39:48.483741 7fc14ea72a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:39:48.483742 7fc14ea72a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:39:48.483744 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:39:48.483759 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:39:48.483760 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:39:48.483761 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:39:48.483762 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:39:48.483763 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:39:48.483763 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:39:48.483764 7fc14ea72a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:39:48.483765 7fc14ea72a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:39:48.483766 7fc14ea72a80 Options.arena_block_size: 16777216
+2021/03/14-01:39:48.483767 7fc14ea72a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:39:48.483768 7fc14ea72a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:39:48.483769 7fc14ea72a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:39:48.483770 7fc14ea72a80 Options.disable_auto_compactions: 0
+2021/03/14-01:39:48.483772 7fc14ea72a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:39:48.483773 7fc14ea72a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:39:48.483774 7fc14ea72a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:39:48.483775 7fc14ea72a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:39:48.483776 7fc14ea72a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:39:48.483777 7fc14ea72a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:39:48.483778 7fc14ea72a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:39:48.483780 7fc14ea72a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:39:48.483781 7fc14ea72a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:39:48.483782 7fc14ea72a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:39:48.483782 7fc14ea72a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:39:48.483783 7fc14ea72a80 Options.table_properties_collectors:
+2021/03/14-01:39:48.483784 7fc14ea72a80 Options.inplace_update_support: 0
+2021/03/14-01:39:48.483785 7fc14ea72a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:39:48.483786 7fc14ea72a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:39:48.483787 7fc14ea72a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:39:48.483788 7fc14ea72a80 Options.bloom_locality: 0
+2021/03/14-01:39:48.483789 7fc14ea72a80 Options.max_successive_merges: 0
+2021/03/14-01:39:48.483790 7fc14ea72a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:39:48.483791 7fc14ea72a80 Options.paranoid_file_checks: 0
+2021/03/14-01:39:48.483792 7fc14ea72a80 Options.force_consistency_checks: 0
+2021/03/14-01:39:48.483793 7fc14ea72a80 Options.report_bg_io_stats: 0
+2021/03/14-01:39:48.484537 7fc14ea72a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:39:48.484545 7fc14ea72a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:39:48.484871 7fc14ea72a80 EVENT_LOG_v1 {"time_micros": 1615682388484850, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:39:48.484883 7fc14ea72a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:39:49.649115 7fc14ea72a80 EVENT_LOG_v1 {"time_micros": 1615682389649111, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682390533408 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682390533408
new file mode 100644
index 0000000..899b524
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682390533408
@@ -0,0 +1,186 @@
+2021/03/14-01:39:49.668346 7fc14ea72a80 RocksDB version: 5.11.3
+2021/03/14-01:39:49.668438 7fc14ea72a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:39:49.668441 7fc14ea72a80 Compile date Mar 13 2021
+2021/03/14-01:39:49.668444 7fc14ea72a80 DB SUMMARY
+2021/03/14-01:39:49.668655 7fc14ea72a80 CURRENT file: CURRENT
+2021/03/14-01:39:49.668656 7fc14ea72a80 IDENTITY file: IDENTITY
+2021/03/14-01:39:49.668676 7fc14ea72a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:39:49.668678 7fc14ea72a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:39:49.668679 7fc14ea72a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:39:49.668686 7fc14ea72a80 Options.error_if_exists: 0
+2021/03/14-01:39:49.668687 7fc14ea72a80 Options.create_if_missing: 1
+2021/03/14-01:39:49.668688 7fc14ea72a80 Options.paranoid_checks: 1
+2021/03/14-01:39:49.668689 7fc14ea72a80 Options.env: 0x7fc14f42c080
+2021/03/14-01:39:49.668690 7fc14ea72a80 Options.info_log: 0x118aca0
+2021/03/14-01:39:49.668691 7fc14ea72a80 Options.max_file_opening_threads: 16
+2021/03/14-01:39:49.668692 7fc14ea72a80 Options.statistics: (nil)
+2021/03/14-01:39:49.668693 7fc14ea72a80 Options.use_fsync: 0
+2021/03/14-01:39:49.668694 7fc14ea72a80 Options.max_log_file_size: 0
+2021/03/14-01:39:49.668694 7fc14ea72a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:39:49.668695 7fc14ea72a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:39:49.668696 7fc14ea72a80 Options.keep_log_file_num: 1000
+2021/03/14-01:39:49.668697 7fc14ea72a80 Options.recycle_log_file_num: 0
+2021/03/14-01:39:49.668698 7fc14ea72a80 Options.allow_fallocate: 1
+2021/03/14-01:39:49.668699 7fc14ea72a80 Options.allow_mmap_reads: 0
+2021/03/14-01:39:49.668700 7fc14ea72a80 Options.allow_mmap_writes: 0
+2021/03/14-01:39:49.668701 7fc14ea72a80 Options.use_direct_reads: 0
+2021/03/14-01:39:49.668701 7fc14ea72a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:39:49.668702 7fc14ea72a80 Options.create_missing_column_families: 0
+2021/03/14-01:39:49.668703 7fc14ea72a80 Options.db_log_dir:
+2021/03/14-01:39:49.668704 7fc14ea72a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:39:49.668705 7fc14ea72a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:39:49.668706 7fc14ea72a80 Options.max_subcompactions: 1
+2021/03/14-01:39:49.668707 7fc14ea72a80 Options.max_background_flushes: -1
+2021/03/14-01:39:49.668708 7fc14ea72a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:39:49.668709 7fc14ea72a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:39:49.668709 7fc14ea72a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:39:49.668710 7fc14ea72a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:39:49.668711 7fc14ea72a80 Options.advise_random_on_open: 1
+2021/03/14-01:39:49.668712 7fc14ea72a80 Options.db_write_buffer_size: 0
+2021/03/14-01:39:49.668713 7fc14ea72a80 Options.write_buffer_manager: 0x1172b90
+2021/03/14-01:39:49.668714 7fc14ea72a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:39:49.668715 7fc14ea72a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:39:49.668715 7fc14ea72a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:39:49.668716 7fc14ea72a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:39:49.668717 7fc14ea72a80 Options.rate_limiter: (nil)
+2021/03/14-01:39:49.668719 7fc14ea72a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:39:49.668731 7fc14ea72a80 Options.wal_recovery_mode: 2
+2021/03/14-01:39:49.668732 7fc14ea72a80 Options.enable_thread_tracking: 0
+2021/03/14-01:39:49.668733 7fc14ea72a80 Options.enable_pipelined_write: 0
+2021/03/14-01:39:49.668734 7fc14ea72a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:39:49.668735 7fc14ea72a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:39:49.668736 7fc14ea72a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:39:49.668737 7fc14ea72a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:39:49.668737 7fc14ea72a80 Options.row_cache: None
+2021/03/14-01:39:49.668738 7fc14ea72a80 Options.wal_filter: None
+2021/03/14-01:39:49.668739 7fc14ea72a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:39:49.668740 7fc14ea72a80 Options.allow_ingest_behind: 0
+2021/03/14-01:39:49.668741 7fc14ea72a80 Options.preserve_deletes: 0
+2021/03/14-01:39:49.668742 7fc14ea72a80 Options.two_write_queues: 0
+2021/03/14-01:39:49.668743 7fc14ea72a80 Options.manual_wal_flush: 0
+2021/03/14-01:39:49.668744 7fc14ea72a80 Options.max_background_jobs: 16
+2021/03/14-01:39:49.668745 7fc14ea72a80 Options.max_background_compactions: -1
+2021/03/14-01:39:49.668746 7fc14ea72a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:39:49.668747 7fc14ea72a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:39:49.668748 7fc14ea72a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:39:49.668749 7fc14ea72a80 Options.max_total_wal_size: 0
+2021/03/14-01:39:49.668749 7fc14ea72a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:39:49.668750 7fc14ea72a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:39:49.668751 7fc14ea72a80 Options.max_open_files: -1
+2021/03/14-01:39:49.668752 7fc14ea72a80 Options.bytes_per_sync: 0
+2021/03/14-01:39:49.668753 7fc14ea72a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:39:49.668754 7fc14ea72a80 Options.compaction_readahead_size: 0
+2021/03/14-01:39:49.668755 7fc14ea72a80 Compression algorithms supported:
+2021/03/14-01:39:49.668756 7fc14ea72a80 Snappy supported: 1
+2021/03/14-01:39:49.668756 7fc14ea72a80 Zlib supported: 1
+2021/03/14-01:39:49.668757 7fc14ea72a80 Bzip supported: 1
+2021/03/14-01:39:49.668758 7fc14ea72a80 LZ4 supported: 1
+2021/03/14-01:39:49.668759 7fc14ea72a80 ZSTDNotFinal supported: 1
+2021/03/14-01:39:49.668765 7fc14ea72a80 ZSTD supported: 1
+2021/03/14-01:39:49.668769 7fc14ea72a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:39:49.668772 7fc14ea72a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:39:49.668903 7fc14ea72a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:39:49.668985 7fc14ea72a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:39:49.668987 7fc14ea72a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:39:49.668988 7fc14ea72a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:39:49.668989 7fc14ea72a80 Options.compaction_filter: None
+2021/03/14-01:39:49.668990 7fc14ea72a80 Options.compaction_filter_factory: None
+2021/03/14-01:39:49.668991 7fc14ea72a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:39:49.668993 7fc14ea72a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:39:49.669015 7fc14ea72a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1182520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1167c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:39:49.669016 7fc14ea72a80 Options.write_buffer_size: 134217728
+2021/03/14-01:39:49.669017 7fc14ea72a80 Options.max_write_buffer_number: 6
+2021/03/14-01:39:49.669018 7fc14ea72a80 Options.compression[0]: NoCompression
+2021/03/14-01:39:49.669019 7fc14ea72a80 Options.compression[1]: NoCompression
+2021/03/14-01:39:49.669020 7fc14ea72a80 Options.compression[2]: Snappy
+2021/03/14-01:39:49.669021 7fc14ea72a80 Options.compression[3]: Snappy
+2021/03/14-01:39:49.669022 7fc14ea72a80 Options.compression[4]: Snappy
+2021/03/14-01:39:49.669023 7fc14ea72a80 Options.compression[5]: Snappy
+2021/03/14-01:39:49.669024 7fc14ea72a80 Options.compression[6]: Snappy
+2021/03/14-01:39:49.669025 7fc14ea72a80 Options.bottommost_compression: Disabled
+2021/03/14-01:39:49.669026 7fc14ea72a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:39:49.669027 7fc14ea72a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:39:49.669028 7fc14ea72a80 Options.num_levels: 7
+2021/03/14-01:39:49.669029 7fc14ea72a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:39:49.669029 7fc14ea72a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:39:49.669030 7fc14ea72a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:39:49.669031 7fc14ea72a80 Options.compression_opts.level: -1
+2021/03/14-01:39:49.669032 7fc14ea72a80 Options.compression_opts.strategy: 0
+2021/03/14-01:39:49.669033 7fc14ea72a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:39:49.669034 7fc14ea72a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:39:49.669035 7fc14ea72a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:39:49.669036 7fc14ea72a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:39:49.669036 7fc14ea72a80 Options.target_file_size_base: 67108864
+2021/03/14-01:39:49.669037 7fc14ea72a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:39:49.669038 7fc14ea72a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:39:49.669039 7fc14ea72a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:39:49.669040 7fc14ea72a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:39:49.669042 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:39:49.669054 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:39:49.669055 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:39:49.669056 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:39:49.669057 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:39:49.669058 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:39:49.669059 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:39:49.669059 7fc14ea72a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:39:49.669060 7fc14ea72a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:39:49.669061 7fc14ea72a80 Options.arena_block_size: 16777216
+2021/03/14-01:39:49.669062 7fc14ea72a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:39:49.669063 7fc14ea72a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:39:49.669064 7fc14ea72a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:39:49.669065 7fc14ea72a80 Options.disable_auto_compactions: 0
+2021/03/14-01:39:49.669067 7fc14ea72a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:39:49.669068 7fc14ea72a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:39:49.669069 7fc14ea72a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:39:49.669070 7fc14ea72a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:39:49.669071 7fc14ea72a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:39:49.669072 7fc14ea72a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:39:49.669073 7fc14ea72a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:39:49.669074 7fc14ea72a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:39:49.669075 7fc14ea72a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:39:49.669076 7fc14ea72a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:39:49.669077 7fc14ea72a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:39:49.669078 7fc14ea72a80 Options.table_properties_collectors:
+2021/03/14-01:39:49.669079 7fc14ea72a80 Options.inplace_update_support: 0
+2021/03/14-01:39:49.669079 7fc14ea72a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:39:49.669080 7fc14ea72a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:39:49.669082 7fc14ea72a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:39:49.669083 7fc14ea72a80 Options.bloom_locality: 0
+2021/03/14-01:39:49.669083 7fc14ea72a80 Options.max_successive_merges: 0
+2021/03/14-01:39:49.669084 7fc14ea72a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:39:49.669085 7fc14ea72a80 Options.paranoid_file_checks: 0
+2021/03/14-01:39:49.669086 7fc14ea72a80 Options.force_consistency_checks: 0
+2021/03/14-01:39:49.669087 7fc14ea72a80 Options.report_bg_io_stats: 0
+2021/03/14-01:39:49.669717 7fc14ea72a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:39:49.669721 7fc14ea72a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:39:49.669932 7fc14ea72a80 EVENT_LOG_v1 {"time_micros": 1615682389669915, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:39:49.669940 7fc14ea72a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:39:50.520879 7fc14ea72a80 EVENT_LOG_v1 {"time_micros": 1615682390520876, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682391204874 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682391204874
new file mode 100644
index 0000000..3d79d73
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682391204874
@@ -0,0 +1,186 @@
+2021/03/14-01:39:50.533790 7fc14ea72a80 RocksDB version: 5.11.3
+2021/03/14-01:39:50.533852 7fc14ea72a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:39:50.533853 7fc14ea72a80 Compile date Mar 13 2021
+2021/03/14-01:39:50.533856 7fc14ea72a80 DB SUMMARY
+2021/03/14-01:39:50.533991 7fc14ea72a80 CURRENT file: CURRENT
+2021/03/14-01:39:50.533992 7fc14ea72a80 IDENTITY file: IDENTITY
+2021/03/14-01:39:50.534005 7fc14ea72a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:39:50.534006 7fc14ea72a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:39:50.534007 7fc14ea72a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:39:50.534011 7fc14ea72a80 Options.error_if_exists: 0
+2021/03/14-01:39:50.534012 7fc14ea72a80 Options.create_if_missing: 1
+2021/03/14-01:39:50.534013 7fc14ea72a80 Options.paranoid_checks: 1
+2021/03/14-01:39:50.534013 7fc14ea72a80 Options.env: 0x7fc14f42c080
+2021/03/14-01:39:50.534014 7fc14ea72a80 Options.info_log: 0x118aca0
+2021/03/14-01:39:50.534014 7fc14ea72a80 Options.max_file_opening_threads: 16
+2021/03/14-01:39:50.534015 7fc14ea72a80 Options.statistics: (nil)
+2021/03/14-01:39:50.534016 7fc14ea72a80 Options.use_fsync: 0
+2021/03/14-01:39:50.534016 7fc14ea72a80 Options.max_log_file_size: 0
+2021/03/14-01:39:50.534017 7fc14ea72a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:39:50.534018 7fc14ea72a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:39:50.534018 7fc14ea72a80 Options.keep_log_file_num: 1000
+2021/03/14-01:39:50.534019 7fc14ea72a80 Options.recycle_log_file_num: 0
+2021/03/14-01:39:50.534019 7fc14ea72a80 Options.allow_fallocate: 1
+2021/03/14-01:39:50.534020 7fc14ea72a80 Options.allow_mmap_reads: 0
+2021/03/14-01:39:50.534020 7fc14ea72a80 Options.allow_mmap_writes: 0
+2021/03/14-01:39:50.534021 7fc14ea72a80 Options.use_direct_reads: 0
+2021/03/14-01:39:50.534021 7fc14ea72a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:39:50.534022 7fc14ea72a80 Options.create_missing_column_families: 0
+2021/03/14-01:39:50.534023 7fc14ea72a80 Options.db_log_dir:
+2021/03/14-01:39:50.534023 7fc14ea72a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:39:50.534024 7fc14ea72a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:39:50.534024 7fc14ea72a80 Options.max_subcompactions: 1
+2021/03/14-01:39:50.534025 7fc14ea72a80 Options.max_background_flushes: -1
+2021/03/14-01:39:50.534025 7fc14ea72a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:39:50.534026 7fc14ea72a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:39:50.534027 7fc14ea72a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:39:50.534027 7fc14ea72a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:39:50.534028 7fc14ea72a80 Options.advise_random_on_open: 1
+2021/03/14-01:39:50.534028 7fc14ea72a80 Options.db_write_buffer_size: 0
+2021/03/14-01:39:50.534029 7fc14ea72a80 Options.write_buffer_manager: 0x1172b90
+2021/03/14-01:39:50.534029 7fc14ea72a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:39:50.534030 7fc14ea72a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:39:50.534031 7fc14ea72a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:39:50.534031 7fc14ea72a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:39:50.534032 7fc14ea72a80 Options.rate_limiter: (nil)
+2021/03/14-01:39:50.534033 7fc14ea72a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:39:50.534041 7fc14ea72a80 Options.wal_recovery_mode: 2
+2021/03/14-01:39:50.534041 7fc14ea72a80 Options.enable_thread_tracking: 0
+2021/03/14-01:39:50.534042 7fc14ea72a80 Options.enable_pipelined_write: 0
+2021/03/14-01:39:50.534042 7fc14ea72a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:39:50.534043 7fc14ea72a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:39:50.534043 7fc14ea72a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:39:50.534044 7fc14ea72a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:39:50.534045 7fc14ea72a80 Options.row_cache: None
+2021/03/14-01:39:50.534045 7fc14ea72a80 Options.wal_filter: None
+2021/03/14-01:39:50.534046 7fc14ea72a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:39:50.534046 7fc14ea72a80 Options.allow_ingest_behind: 0
+2021/03/14-01:39:50.534047 7fc14ea72a80 Options.preserve_deletes: 0
+2021/03/14-01:39:50.534047 7fc14ea72a80 Options.two_write_queues: 0
+2021/03/14-01:39:50.534048 7fc14ea72a80 Options.manual_wal_flush: 0
+2021/03/14-01:39:50.534049 7fc14ea72a80 Options.max_background_jobs: 16
+2021/03/14-01:39:50.534050 7fc14ea72a80 Options.max_background_compactions: -1
+2021/03/14-01:39:50.534050 7fc14ea72a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:39:50.534051 7fc14ea72a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:39:50.534051 7fc14ea72a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:39:50.534052 7fc14ea72a80 Options.max_total_wal_size: 0
+2021/03/14-01:39:50.534053 7fc14ea72a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:39:50.534053 7fc14ea72a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:39:50.534054 7fc14ea72a80 Options.max_open_files: -1
+2021/03/14-01:39:50.534054 7fc14ea72a80 Options.bytes_per_sync: 0
+2021/03/14-01:39:50.534055 7fc14ea72a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:39:50.534055 7fc14ea72a80 Options.compaction_readahead_size: 0
+2021/03/14-01:39:50.534056 7fc14ea72a80 Compression algorithms supported:
+2021/03/14-01:39:50.534057 7fc14ea72a80 Snappy supported: 1
+2021/03/14-01:39:50.534057 7fc14ea72a80 Zlib supported: 1
+2021/03/14-01:39:50.534058 7fc14ea72a80 Bzip supported: 1
+2021/03/14-01:39:50.534058 7fc14ea72a80 LZ4 supported: 1
+2021/03/14-01:39:50.534059 7fc14ea72a80 ZSTDNotFinal supported: 1
+2021/03/14-01:39:50.534062 7fc14ea72a80 ZSTD supported: 1
+2021/03/14-01:39:50.534066 7fc14ea72a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:39:50.534067 7fc14ea72a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:39:50.534155 7fc14ea72a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:39:50.534208 7fc14ea72a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:39:50.534209 7fc14ea72a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:39:50.534210 7fc14ea72a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:39:50.534211 7fc14ea72a80 Options.compaction_filter: None
+2021/03/14-01:39:50.534211 7fc14ea72a80 Options.compaction_filter_factory: None
+2021/03/14-01:39:50.534212 7fc14ea72a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:39:50.534213 7fc14ea72a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:39:50.534227 7fc14ea72a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1182520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1167c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:39:50.534228 7fc14ea72a80 Options.write_buffer_size: 134217728
+2021/03/14-01:39:50.534228 7fc14ea72a80 Options.max_write_buffer_number: 6
+2021/03/14-01:39:50.534229 7fc14ea72a80 Options.compression[0]: NoCompression
+2021/03/14-01:39:50.534230 7fc14ea72a80 Options.compression[1]: NoCompression
+2021/03/14-01:39:50.534230 7fc14ea72a80 Options.compression[2]: Snappy
+2021/03/14-01:39:50.534231 7fc14ea72a80 Options.compression[3]: Snappy
+2021/03/14-01:39:50.534232 7fc14ea72a80 Options.compression[4]: Snappy
+2021/03/14-01:39:50.534232 7fc14ea72a80 Options.compression[5]: Snappy
+2021/03/14-01:39:50.534233 7fc14ea72a80 Options.compression[6]: Snappy
+2021/03/14-01:39:50.534233 7fc14ea72a80 Options.bottommost_compression: Disabled
+2021/03/14-01:39:50.534234 7fc14ea72a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:39:50.534235 7fc14ea72a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:39:50.534235 7fc14ea72a80 Options.num_levels: 7
+2021/03/14-01:39:50.534236 7fc14ea72a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:39:50.534236 7fc14ea72a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:39:50.534237 7fc14ea72a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:39:50.534243 7fc14ea72a80 Options.compression_opts.level: -1
+2021/03/14-01:39:50.534244 7fc14ea72a80 Options.compression_opts.strategy: 0
+2021/03/14-01:39:50.534245 7fc14ea72a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:39:50.534245 7fc14ea72a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:39:50.534246 7fc14ea72a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:39:50.534247 7fc14ea72a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:39:50.534247 7fc14ea72a80 Options.target_file_size_base: 67108864
+2021/03/14-01:39:50.534248 7fc14ea72a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:39:50.534249 7fc14ea72a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:39:50.534249 7fc14ea72a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:39:50.534250 7fc14ea72a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:39:50.534251 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:39:50.534260 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:39:50.534260 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:39:50.534261 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:39:50.534262 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:39:50.534262 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:39:50.534263 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:39:50.534263 7fc14ea72a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:39:50.534264 7fc14ea72a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:39:50.534264 7fc14ea72a80 Options.arena_block_size: 16777216
+2021/03/14-01:39:50.534265 7fc14ea72a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:39:50.534266 7fc14ea72a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:39:50.534266 7fc14ea72a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:39:50.534267 7fc14ea72a80 Options.disable_auto_compactions: 0
+2021/03/14-01:39:50.534268 7fc14ea72a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:39:50.534269 7fc14ea72a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:39:50.534269 7fc14ea72a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:39:50.534270 7fc14ea72a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:39:50.534271 7fc14ea72a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:39:50.534271 7fc14ea72a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:39:50.534272 7fc14ea72a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:39:50.534273 7fc14ea72a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:39:50.534273 7fc14ea72a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:39:50.534274 7fc14ea72a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:39:50.534274 7fc14ea72a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:39:50.534275 7fc14ea72a80 Options.table_properties_collectors:
+2021/03/14-01:39:50.534276 7fc14ea72a80 Options.inplace_update_support: 0
+2021/03/14-01:39:50.534276 7fc14ea72a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:39:50.534277 7fc14ea72a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:39:50.534278 7fc14ea72a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:39:50.534278 7fc14ea72a80 Options.bloom_locality: 0
+2021/03/14-01:39:50.534279 7fc14ea72a80 Options.max_successive_merges: 0
+2021/03/14-01:39:50.534279 7fc14ea72a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:39:50.534280 7fc14ea72a80 Options.paranoid_file_checks: 0
+2021/03/14-01:39:50.534280 7fc14ea72a80 Options.force_consistency_checks: 0
+2021/03/14-01:39:50.534281 7fc14ea72a80 Options.report_bg_io_stats: 0
+2021/03/14-01:39:50.534659 7fc14ea72a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:39:50.534662 7fc14ea72a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:39:50.534798 7fc14ea72a80 EVENT_LOG_v1 {"time_micros": 1615682390534787, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:39:50.534803 7fc14ea72a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:39:51.192552 7fc14ea72a80 EVENT_LOG_v1 {"time_micros": 1615682391192549, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682414884802 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682414884802
new file mode 100644
index 0000000..991ce8d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682414884802
@@ -0,0 +1,186 @@
+2021/03/14-01:39:51.205271 7fc14ea72a80 RocksDB version: 5.11.3
+2021/03/14-01:39:51.205334 7fc14ea72a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:39:51.205336 7fc14ea72a80 Compile date Mar 13 2021
+2021/03/14-01:39:51.205338 7fc14ea72a80 DB SUMMARY
+2021/03/14-01:39:51.205476 7fc14ea72a80 CURRENT file: CURRENT
+2021/03/14-01:39:51.205477 7fc14ea72a80 IDENTITY file: IDENTITY
+2021/03/14-01:39:51.205490 7fc14ea72a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:39:51.205491 7fc14ea72a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:39:51.205492 7fc14ea72a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:39:51.205496 7fc14ea72a80 Options.error_if_exists: 0
+2021/03/14-01:39:51.205497 7fc14ea72a80 Options.create_if_missing: 1
+2021/03/14-01:39:51.205498 7fc14ea72a80 Options.paranoid_checks: 1
+2021/03/14-01:39:51.205498 7fc14ea72a80 Options.env: 0x7fc14f42c080
+2021/03/14-01:39:51.205499 7fc14ea72a80 Options.info_log: 0x118aca0
+2021/03/14-01:39:51.205499 7fc14ea72a80 Options.max_file_opening_threads: 16
+2021/03/14-01:39:51.205500 7fc14ea72a80 Options.statistics: (nil)
+2021/03/14-01:39:51.205501 7fc14ea72a80 Options.use_fsync: 0
+2021/03/14-01:39:51.205501 7fc14ea72a80 Options.max_log_file_size: 0
+2021/03/14-01:39:51.205502 7fc14ea72a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:39:51.205503 7fc14ea72a80 Options.log_file_time_to_roll: 0
+2021/03/14-01:39:51.205503 7fc14ea72a80 Options.keep_log_file_num: 1000
+2021/03/14-01:39:51.205504 7fc14ea72a80 Options.recycle_log_file_num: 0
+2021/03/14-01:39:51.205504 7fc14ea72a80 Options.allow_fallocate: 1
+2021/03/14-01:39:51.205505 7fc14ea72a80 Options.allow_mmap_reads: 0
+2021/03/14-01:39:51.205505 7fc14ea72a80 Options.allow_mmap_writes: 0
+2021/03/14-01:39:51.205506 7fc14ea72a80 Options.use_direct_reads: 0
+2021/03/14-01:39:51.205507 7fc14ea72a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:39:51.205507 7fc14ea72a80 Options.create_missing_column_families: 0
+2021/03/14-01:39:51.205508 7fc14ea72a80 Options.db_log_dir:
+2021/03/14-01:39:51.205508 7fc14ea72a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:39:51.205509 7fc14ea72a80 Options.table_cache_numshardbits: 6
+2021/03/14-01:39:51.205509 7fc14ea72a80 Options.max_subcompactions: 1
+2021/03/14-01:39:51.205510 7fc14ea72a80 Options.max_background_flushes: -1
+2021/03/14-01:39:51.205511 7fc14ea72a80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:39:51.205511 7fc14ea72a80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:39:51.205512 7fc14ea72a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:39:51.205512 7fc14ea72a80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:39:51.205513 7fc14ea72a80 Options.advise_random_on_open: 1
+2021/03/14-01:39:51.205513 7fc14ea72a80 Options.db_write_buffer_size: 0
+2021/03/14-01:39:51.205514 7fc14ea72a80 Options.write_buffer_manager: 0x1172b90
+2021/03/14-01:39:51.205514 7fc14ea72a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:39:51.205515 7fc14ea72a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:39:51.205516 7fc14ea72a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:39:51.205516 7fc14ea72a80 Options.use_adaptive_mutex: 0
+2021/03/14-01:39:51.205517 7fc14ea72a80 Options.rate_limiter: (nil)
+2021/03/14-01:39:51.205518 7fc14ea72a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:39:51.205526 7fc14ea72a80 Options.wal_recovery_mode: 2
+2021/03/14-01:39:51.205526 7fc14ea72a80 Options.enable_thread_tracking: 0
+2021/03/14-01:39:51.205527 7fc14ea72a80 Options.enable_pipelined_write: 0
+2021/03/14-01:39:51.205527 7fc14ea72a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:39:51.205528 7fc14ea72a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:39:51.205529 7fc14ea72a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:39:51.205529 7fc14ea72a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:39:51.205530 7fc14ea72a80 Options.row_cache: None
+2021/03/14-01:39:51.205530 7fc14ea72a80 Options.wal_filter: None
+2021/03/14-01:39:51.205531 7fc14ea72a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:39:51.205531 7fc14ea72a80 Options.allow_ingest_behind: 0
+2021/03/14-01:39:51.205532 7fc14ea72a80 Options.preserve_deletes: 0
+2021/03/14-01:39:51.205532 7fc14ea72a80 Options.two_write_queues: 0
+2021/03/14-01:39:51.205533 7fc14ea72a80 Options.manual_wal_flush: 0
+2021/03/14-01:39:51.205534 7fc14ea72a80 Options.max_background_jobs: 16
+2021/03/14-01:39:51.205535 7fc14ea72a80 Options.max_background_compactions: -1
+2021/03/14-01:39:51.205535 7fc14ea72a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:39:51.205536 7fc14ea72a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:39:51.205536 7fc14ea72a80 Options.delayed_write_rate : 16777216
+2021/03/14-01:39:51.205537 7fc14ea72a80 Options.max_total_wal_size: 0
+2021/03/14-01:39:51.205538 7fc14ea72a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:39:51.205538 7fc14ea72a80 Options.stats_dump_period_sec: 600
+2021/03/14-01:39:51.205539 7fc14ea72a80 Options.max_open_files: -1
+2021/03/14-01:39:51.205539 7fc14ea72a80 Options.bytes_per_sync: 0
+2021/03/14-01:39:51.205540 7fc14ea72a80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:39:51.205541 7fc14ea72a80 Options.compaction_readahead_size: 0
+2021/03/14-01:39:51.205541 7fc14ea72a80 Compression algorithms supported:
+2021/03/14-01:39:51.205542 7fc14ea72a80 Snappy supported: 1
+2021/03/14-01:39:51.205542 7fc14ea72a80 Zlib supported: 1
+2021/03/14-01:39:51.205543 7fc14ea72a80 Bzip supported: 1
+2021/03/14-01:39:51.205543 7fc14ea72a80 LZ4 supported: 1
+2021/03/14-01:39:51.205544 7fc14ea72a80 ZSTDNotFinal supported: 1
+2021/03/14-01:39:51.205548 7fc14ea72a80 ZSTD supported: 1
+2021/03/14-01:39:51.205551 7fc14ea72a80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:39:51.205552 7fc14ea72a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:39:51.205640 7fc14ea72a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:39:51.205692 7fc14ea72a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:39:51.205694 7fc14ea72a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:39:51.205695 7fc14ea72a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:39:51.205696 7fc14ea72a80 Options.compaction_filter: None
+2021/03/14-01:39:51.205696 7fc14ea72a80 Options.compaction_filter_factory: None
+2021/03/14-01:39:51.205697 7fc14ea72a80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:39:51.205698 7fc14ea72a80 Options.table_factory: BlockBasedTable
+2021/03/14-01:39:51.205713 7fc14ea72a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1182520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1167c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:39:51.205714 7fc14ea72a80 Options.write_buffer_size: 134217728
+2021/03/14-01:39:51.205715 7fc14ea72a80 Options.max_write_buffer_number: 6
+2021/03/14-01:39:51.205715 7fc14ea72a80 Options.compression[0]: NoCompression
+2021/03/14-01:39:51.205716 7fc14ea72a80 Options.compression[1]: NoCompression
+2021/03/14-01:39:51.205717 7fc14ea72a80 Options.compression[2]: Snappy
+2021/03/14-01:39:51.205717 7fc14ea72a80 Options.compression[3]: Snappy
+2021/03/14-01:39:51.205718 7fc14ea72a80 Options.compression[4]: Snappy
+2021/03/14-01:39:51.205718 7fc14ea72a80 Options.compression[5]: Snappy
+2021/03/14-01:39:51.205719 7fc14ea72a80 Options.compression[6]: Snappy
+2021/03/14-01:39:51.205720 7fc14ea72a80 Options.bottommost_compression: Disabled
+2021/03/14-01:39:51.205720 7fc14ea72a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:39:51.205721 7fc14ea72a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:39:51.205722 7fc14ea72a80 Options.num_levels: 7
+2021/03/14-01:39:51.205722 7fc14ea72a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:39:51.205723 7fc14ea72a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:39:51.205723 7fc14ea72a80 Options.compression_opts.window_bits: -14
+2021/03/14-01:39:51.205724 7fc14ea72a80 Options.compression_opts.level: -1
+2021/03/14-01:39:51.205724 7fc14ea72a80 Options.compression_opts.strategy: 0
+2021/03/14-01:39:51.205725 7fc14ea72a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:39:51.205726 7fc14ea72a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:39:51.205726 7fc14ea72a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:39:51.205727 7fc14ea72a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:39:51.205727 7fc14ea72a80 Options.target_file_size_base: 67108864
+2021/03/14-01:39:51.205728 7fc14ea72a80 Options.target_file_size_multiplier: 1
+2021/03/14-01:39:51.205728 7fc14ea72a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:39:51.205729 7fc14ea72a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:39:51.205730 7fc14ea72a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:39:51.205731 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:39:51.205738 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:39:51.205739 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:39:51.205740 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:39:51.205740 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:39:51.205741 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:39:51.205741 7fc14ea72a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:39:51.205742 7fc14ea72a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:39:51.205742 7fc14ea72a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:39:51.205743 7fc14ea72a80 Options.arena_block_size: 16777216
+2021/03/14-01:39:51.205744 7fc14ea72a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:39:51.205744 7fc14ea72a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:39:51.205745 7fc14ea72a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:39:51.205745 7fc14ea72a80 Options.disable_auto_compactions: 0
+2021/03/14-01:39:51.205747 7fc14ea72a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:39:51.205748 7fc14ea72a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:39:51.205748 7fc14ea72a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:39:51.205749 7fc14ea72a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:39:51.205749 7fc14ea72a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:39:51.205750 7fc14ea72a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:39:51.205751 7fc14ea72a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:39:51.205752 7fc14ea72a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:39:51.205752 7fc14ea72a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:39:51.205753 7fc14ea72a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:39:51.205753 7fc14ea72a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:39:51.205754 7fc14ea72a80 Options.table_properties_collectors:
+2021/03/14-01:39:51.205755 7fc14ea72a80 Options.inplace_update_support: 0
+2021/03/14-01:39:51.205755 7fc14ea72a80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:39:51.205756 7fc14ea72a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:39:51.205756 7fc14ea72a80 Options.memtable_huge_page_size: 0
+2021/03/14-01:39:51.205757 7fc14ea72a80 Options.bloom_locality: 0
+2021/03/14-01:39:51.205758 7fc14ea72a80 Options.max_successive_merges: 0
+2021/03/14-01:39:51.205758 7fc14ea72a80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:39:51.205759 7fc14ea72a80 Options.paranoid_file_checks: 0
+2021/03/14-01:39:51.205759 7fc14ea72a80 Options.force_consistency_checks: 0
+2021/03/14-01:39:51.205760 7fc14ea72a80 Options.report_bg_io_stats: 0
+2021/03/14-01:39:51.206133 7fc14ea72a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:39:51.206135 7fc14ea72a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:39:51.206275 7fc14ea72a80 EVENT_LOG_v1 {"time_micros": 1615682391206264, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:39:51.206280 7fc14ea72a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:39:51.867980 7fc14ea72a80 EVENT_LOG_v1 {"time_micros": 1615682391867976, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682415574376 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682415574376
new file mode 100644
index 0000000..6cf7e1b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682415574376
@@ -0,0 +1,186 @@
+2021/03/14-01:40:14.885449 7f3bb2ecfa80 RocksDB version: 5.11.3
+2021/03/14-01:40:14.885543 7f3bb2ecfa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:40:14.885545 7f3bb2ecfa80 Compile date Mar 13 2021
+2021/03/14-01:40:14.885549 7f3bb2ecfa80 DB SUMMARY
+2021/03/14-01:40:14.885711 7f3bb2ecfa80 CURRENT file: CURRENT
+2021/03/14-01:40:14.885713 7f3bb2ecfa80 IDENTITY file: IDENTITY
+2021/03/14-01:40:14.885728 7f3bb2ecfa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:40:14.885729 7f3bb2ecfa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:40:14.885731 7f3bb2ecfa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:40:14.885736 7f3bb2ecfa80 Options.error_if_exists: 0
+2021/03/14-01:40:14.885737 7f3bb2ecfa80 Options.create_if_missing: 1
+2021/03/14-01:40:14.885738 7f3bb2ecfa80 Options.paranoid_checks: 1
+2021/03/14-01:40:14.885738 7f3bb2ecfa80 Options.env: 0x7f3bb3889080
+2021/03/14-01:40:14.885739 7f3bb2ecfa80 Options.info_log: 0x189aca0
+2021/03/14-01:40:14.885740 7f3bb2ecfa80 Options.max_file_opening_threads: 16
+2021/03/14-01:40:14.885741 7f3bb2ecfa80 Options.statistics: (nil)
+2021/03/14-01:40:14.885742 7f3bb2ecfa80 Options.use_fsync: 0
+2021/03/14-01:40:14.885742 7f3bb2ecfa80 Options.max_log_file_size: 0
+2021/03/14-01:40:14.885743 7f3bb2ecfa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:40:14.885744 7f3bb2ecfa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:40:14.885744 7f3bb2ecfa80 Options.keep_log_file_num: 1000
+2021/03/14-01:40:14.885745 7f3bb2ecfa80 Options.recycle_log_file_num: 0
+2021/03/14-01:40:14.885746 7f3bb2ecfa80 Options.allow_fallocate: 1
+2021/03/14-01:40:14.885747 7f3bb2ecfa80 Options.allow_mmap_reads: 0
+2021/03/14-01:40:14.885747 7f3bb2ecfa80 Options.allow_mmap_writes: 0
+2021/03/14-01:40:14.885748 7f3bb2ecfa80 Options.use_direct_reads: 0
+2021/03/14-01:40:14.885748 7f3bb2ecfa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:40:14.885749 7f3bb2ecfa80 Options.create_missing_column_families: 0
+2021/03/14-01:40:14.885750 7f3bb2ecfa80 Options.db_log_dir:
+2021/03/14-01:40:14.885751 7f3bb2ecfa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:40:14.885751 7f3bb2ecfa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:40:14.885752 7f3bb2ecfa80 Options.max_subcompactions: 1
+2021/03/14-01:40:14.885753 7f3bb2ecfa80 Options.max_background_flushes: -1
+2021/03/14-01:40:14.885753 7f3bb2ecfa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:40:14.885754 7f3bb2ecfa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:40:14.885755 7f3bb2ecfa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:40:14.885755 7f3bb2ecfa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:40:14.885756 7f3bb2ecfa80 Options.advise_random_on_open: 1
+2021/03/14-01:40:14.885757 7f3bb2ecfa80 Options.db_write_buffer_size: 0
+2021/03/14-01:40:14.885757 7f3bb2ecfa80 Options.write_buffer_manager: 0x1882b90
+2021/03/14-01:40:14.885758 7f3bb2ecfa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:40:14.885759 7f3bb2ecfa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:40:14.885759 7f3bb2ecfa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:40:14.885760 7f3bb2ecfa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:40:14.885761 7f3bb2ecfa80 Options.rate_limiter: (nil)
+2021/03/14-01:40:14.885762 7f3bb2ecfa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:40:14.885772 7f3bb2ecfa80 Options.wal_recovery_mode: 2
+2021/03/14-01:40:14.885773 7f3bb2ecfa80 Options.enable_thread_tracking: 0
+2021/03/14-01:40:14.885774 7f3bb2ecfa80 Options.enable_pipelined_write: 0
+2021/03/14-01:40:14.885774 7f3bb2ecfa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:40:14.885775 7f3bb2ecfa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:40:14.885776 7f3bb2ecfa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:40:14.885776 7f3bb2ecfa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:40:14.885777 7f3bb2ecfa80 Options.row_cache: None
+2021/03/14-01:40:14.885778 7f3bb2ecfa80 Options.wal_filter: None
+2021/03/14-01:40:14.885778 7f3bb2ecfa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:40:14.885779 7f3bb2ecfa80 Options.allow_ingest_behind: 0
+2021/03/14-01:40:14.885780 7f3bb2ecfa80 Options.preserve_deletes: 0
+2021/03/14-01:40:14.885780 7f3bb2ecfa80 Options.two_write_queues: 0
+2021/03/14-01:40:14.885781 7f3bb2ecfa80 Options.manual_wal_flush: 0
+2021/03/14-01:40:14.885782 7f3bb2ecfa80 Options.max_background_jobs: 16
+2021/03/14-01:40:14.885783 7f3bb2ecfa80 Options.max_background_compactions: -1
+2021/03/14-01:40:14.885784 7f3bb2ecfa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:40:14.885784 7f3bb2ecfa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:40:14.885785 7f3bb2ecfa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:40:14.885786 7f3bb2ecfa80 Options.max_total_wal_size: 0
+2021/03/14-01:40:14.885786 7f3bb2ecfa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:40:14.885787 7f3bb2ecfa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:40:14.885788 7f3bb2ecfa80 Options.max_open_files: -1
+2021/03/14-01:40:14.885789 7f3bb2ecfa80 Options.bytes_per_sync: 0
+2021/03/14-01:40:14.885789 7f3bb2ecfa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:40:14.885790 7f3bb2ecfa80 Options.compaction_readahead_size: 0
+2021/03/14-01:40:14.885790 7f3bb2ecfa80 Compression algorithms supported:
+2021/03/14-01:40:14.885791 7f3bb2ecfa80 Snappy supported: 1
+2021/03/14-01:40:14.885792 7f3bb2ecfa80 Zlib supported: 1
+2021/03/14-01:40:14.885793 7f3bb2ecfa80 Bzip supported: 1
+2021/03/14-01:40:14.885793 7f3bb2ecfa80 LZ4 supported: 1
+2021/03/14-01:40:14.885794 7f3bb2ecfa80 ZSTDNotFinal supported: 1
+2021/03/14-01:40:14.885800 7f3bb2ecfa80 ZSTD supported: 1
+2021/03/14-01:40:14.885804 7f3bb2ecfa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:40:14.885806 7f3bb2ecfa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:40:14.885963 7f3bb2ecfa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:40:14.886035 7f3bb2ecfa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:40:14.886038 7f3bb2ecfa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:40:14.886038 7f3bb2ecfa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:40:14.886039 7f3bb2ecfa80 Options.compaction_filter: None
+2021/03/14-01:40:14.886040 7f3bb2ecfa80 Options.compaction_filter_factory: None
+2021/03/14-01:40:14.886041 7f3bb2ecfa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:40:14.886042 7f3bb2ecfa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:40:14.886060 7f3bb2ecfa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1892520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1877c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:40:14.886061 7f3bb2ecfa80 Options.write_buffer_size: 134217728
+2021/03/14-01:40:14.886062 7f3bb2ecfa80 Options.max_write_buffer_number: 6
+2021/03/14-01:40:14.886063 7f3bb2ecfa80 Options.compression[0]: NoCompression
+2021/03/14-01:40:14.886064 7f3bb2ecfa80 Options.compression[1]: NoCompression
+2021/03/14-01:40:14.886065 7f3bb2ecfa80 Options.compression[2]: Snappy
+2021/03/14-01:40:14.886065 7f3bb2ecfa80 Options.compression[3]: Snappy
+2021/03/14-01:40:14.886066 7f3bb2ecfa80 Options.compression[4]: Snappy
+2021/03/14-01:40:14.886067 7f3bb2ecfa80 Options.compression[5]: Snappy
+2021/03/14-01:40:14.886067 7f3bb2ecfa80 Options.compression[6]: Snappy
+2021/03/14-01:40:14.886068 7f3bb2ecfa80 Options.bottommost_compression: Disabled
+2021/03/14-01:40:14.886069 7f3bb2ecfa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:40:14.886070 7f3bb2ecfa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:40:14.886071 7f3bb2ecfa80 Options.num_levels: 7
+2021/03/14-01:40:14.886071 7f3bb2ecfa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:40:14.886072 7f3bb2ecfa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:40:14.886073 7f3bb2ecfa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:40:14.886073 7f3bb2ecfa80 Options.compression_opts.level: -1
+2021/03/14-01:40:14.886074 7f3bb2ecfa80 Options.compression_opts.strategy: 0
+2021/03/14-01:40:14.886075 7f3bb2ecfa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:40:14.886075 7f3bb2ecfa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:40:14.886076 7f3bb2ecfa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:40:14.886077 7f3bb2ecfa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:40:14.886077 7f3bb2ecfa80 Options.target_file_size_base: 67108864
+2021/03/14-01:40:14.886078 7f3bb2ecfa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:40:14.886079 7f3bb2ecfa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:40:14.886080 7f3bb2ecfa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:40:14.886080 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:40:14.886082 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:40:14.886092 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:40:14.886092 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:40:14.886093 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:40:14.886094 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:40:14.886094 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:40:14.886095 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:40:14.886096 7f3bb2ecfa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:40:14.886096 7f3bb2ecfa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:40:14.886097 7f3bb2ecfa80 Options.arena_block_size: 16777216
+2021/03/14-01:40:14.886098 7f3bb2ecfa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:40:14.886099 7f3bb2ecfa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:40:14.886099 7f3bb2ecfa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:40:14.886100 7f3bb2ecfa80 Options.disable_auto_compactions: 0
+2021/03/14-01:40:14.886102 7f3bb2ecfa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:40:14.886103 7f3bb2ecfa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:40:14.886104 7f3bb2ecfa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:40:14.886105 7f3bb2ecfa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:40:14.886105 7f3bb2ecfa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:40:14.886106 7f3bb2ecfa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:40:14.886107 7f3bb2ecfa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:40:14.886108 7f3bb2ecfa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:40:14.886109 7f3bb2ecfa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:40:14.886109 7f3bb2ecfa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:40:14.886110 7f3bb2ecfa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:40:14.886111 7f3bb2ecfa80 Options.table_properties_collectors:
+2021/03/14-01:40:14.886111 7f3bb2ecfa80 Options.inplace_update_support: 0
+2021/03/14-01:40:14.886112 7f3bb2ecfa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:40:14.886113 7f3bb2ecfa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:40:14.886114 7f3bb2ecfa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:40:14.886114 7f3bb2ecfa80 Options.bloom_locality: 0
+2021/03/14-01:40:14.886115 7f3bb2ecfa80 Options.max_successive_merges: 0
+2021/03/14-01:40:14.886116 7f3bb2ecfa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:40:14.886116 7f3bb2ecfa80 Options.paranoid_file_checks: 0
+2021/03/14-01:40:14.886117 7f3bb2ecfa80 Options.force_consistency_checks: 0
+2021/03/14-01:40:14.886118 7f3bb2ecfa80 Options.report_bg_io_stats: 0
+2021/03/14-01:40:14.886674 7f3bb2ecfa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:40:14.886677 7f3bb2ecfa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:40:14.886860 7f3bb2ecfa80 EVENT_LOG_v1 {"time_micros": 1615682414886844, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:40:14.886868 7f3bb2ecfa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:40:15.562191 7f3bb2ecfa80 EVENT_LOG_v1 {"time_micros": 1615682415562188, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682416261707 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682416261707
new file mode 100644
index 0000000..7ad68f3
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682416261707
@@ -0,0 +1,186 @@
+2021/03/14-01:40:15.574760 7f3bb2ecfa80 RocksDB version: 5.11.3
+2021/03/14-01:40:15.574818 7f3bb2ecfa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:40:15.574820 7f3bb2ecfa80 Compile date Mar 13 2021
+2021/03/14-01:40:15.574822 7f3bb2ecfa80 DB SUMMARY
+2021/03/14-01:40:15.574957 7f3bb2ecfa80 CURRENT file: CURRENT
+2021/03/14-01:40:15.574958 7f3bb2ecfa80 IDENTITY file: IDENTITY
+2021/03/14-01:40:15.574971 7f3bb2ecfa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:40:15.574972 7f3bb2ecfa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:40:15.574973 7f3bb2ecfa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:40:15.574978 7f3bb2ecfa80 Options.error_if_exists: 0
+2021/03/14-01:40:15.574979 7f3bb2ecfa80 Options.create_if_missing: 1
+2021/03/14-01:40:15.574979 7f3bb2ecfa80 Options.paranoid_checks: 1
+2021/03/14-01:40:15.574980 7f3bb2ecfa80 Options.env: 0x7f3bb3889080
+2021/03/14-01:40:15.574980 7f3bb2ecfa80 Options.info_log: 0x189aca0
+2021/03/14-01:40:15.574981 7f3bb2ecfa80 Options.max_file_opening_threads: 16
+2021/03/14-01:40:15.574982 7f3bb2ecfa80 Options.statistics: (nil)
+2021/03/14-01:40:15.574982 7f3bb2ecfa80 Options.use_fsync: 0
+2021/03/14-01:40:15.574983 7f3bb2ecfa80 Options.max_log_file_size: 0
+2021/03/14-01:40:15.574983 7f3bb2ecfa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:40:15.574984 7f3bb2ecfa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:40:15.574985 7f3bb2ecfa80 Options.keep_log_file_num: 1000
+2021/03/14-01:40:15.574985 7f3bb2ecfa80 Options.recycle_log_file_num: 0
+2021/03/14-01:40:15.574986 7f3bb2ecfa80 Options.allow_fallocate: 1
+2021/03/14-01:40:15.574986 7f3bb2ecfa80 Options.allow_mmap_reads: 0
+2021/03/14-01:40:15.574987 7f3bb2ecfa80 Options.allow_mmap_writes: 0
+2021/03/14-01:40:15.574987 7f3bb2ecfa80 Options.use_direct_reads: 0
+2021/03/14-01:40:15.574988 7f3bb2ecfa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:40:15.574989 7f3bb2ecfa80 Options.create_missing_column_families: 0
+2021/03/14-01:40:15.574989 7f3bb2ecfa80 Options.db_log_dir:
+2021/03/14-01:40:15.574990 7f3bb2ecfa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:40:15.574990 7f3bb2ecfa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:40:15.574991 7f3bb2ecfa80 Options.max_subcompactions: 1
+2021/03/14-01:40:15.574991 7f3bb2ecfa80 Options.max_background_flushes: -1
+2021/03/14-01:40:15.574992 7f3bb2ecfa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:40:15.574993 7f3bb2ecfa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:40:15.574993 7f3bb2ecfa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:40:15.574994 7f3bb2ecfa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:40:15.574994 7f3bb2ecfa80 Options.advise_random_on_open: 1
+2021/03/14-01:40:15.574995 7f3bb2ecfa80 Options.db_write_buffer_size: 0
+2021/03/14-01:40:15.574995 7f3bb2ecfa80 Options.write_buffer_manager: 0x1882b90
+2021/03/14-01:40:15.574996 7f3bb2ecfa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:40:15.574997 7f3bb2ecfa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:40:15.574997 7f3bb2ecfa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:40:15.574998 7f3bb2ecfa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:40:15.574998 7f3bb2ecfa80 Options.rate_limiter: (nil)
+2021/03/14-01:40:15.574999 7f3bb2ecfa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:40:15.575007 7f3bb2ecfa80 Options.wal_recovery_mode: 2
+2021/03/14-01:40:15.575008 7f3bb2ecfa80 Options.enable_thread_tracking: 0
+2021/03/14-01:40:15.575009 7f3bb2ecfa80 Options.enable_pipelined_write: 0
+2021/03/14-01:40:15.575009 7f3bb2ecfa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:40:15.575010 7f3bb2ecfa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:40:15.575010 7f3bb2ecfa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:40:15.575011 7f3bb2ecfa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:40:15.575012 7f3bb2ecfa80 Options.row_cache: None
+2021/03/14-01:40:15.575012 7f3bb2ecfa80 Options.wal_filter: None
+2021/03/14-01:40:15.575013 7f3bb2ecfa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:40:15.575013 7f3bb2ecfa80 Options.allow_ingest_behind: 0
+2021/03/14-01:40:15.575014 7f3bb2ecfa80 Options.preserve_deletes: 0
+2021/03/14-01:40:15.575014 7f3bb2ecfa80 Options.two_write_queues: 0
+2021/03/14-01:40:15.575015 7f3bb2ecfa80 Options.manual_wal_flush: 0
+2021/03/14-01:40:15.575016 7f3bb2ecfa80 Options.max_background_jobs: 16
+2021/03/14-01:40:15.575017 7f3bb2ecfa80 Options.max_background_compactions: -1
+2021/03/14-01:40:15.575017 7f3bb2ecfa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:40:15.575018 7f3bb2ecfa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:40:15.575018 7f3bb2ecfa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:40:15.575019 7f3bb2ecfa80 Options.max_total_wal_size: 0
+2021/03/14-01:40:15.575019 7f3bb2ecfa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:40:15.575020 7f3bb2ecfa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:40:15.575021 7f3bb2ecfa80 Options.max_open_files: -1
+2021/03/14-01:40:15.575021 7f3bb2ecfa80 Options.bytes_per_sync: 0
+2021/03/14-01:40:15.575022 7f3bb2ecfa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:40:15.575022 7f3bb2ecfa80 Options.compaction_readahead_size: 0
+2021/03/14-01:40:15.575023 7f3bb2ecfa80 Compression algorithms supported:
+2021/03/14-01:40:15.575023 7f3bb2ecfa80 Snappy supported: 1
+2021/03/14-01:40:15.575024 7f3bb2ecfa80 Zlib supported: 1
+2021/03/14-01:40:15.575025 7f3bb2ecfa80 Bzip supported: 1
+2021/03/14-01:40:15.575025 7f3bb2ecfa80 LZ4 supported: 1
+2021/03/14-01:40:15.575026 7f3bb2ecfa80 ZSTDNotFinal supported: 1
+2021/03/14-01:40:15.575030 7f3bb2ecfa80 ZSTD supported: 1
+2021/03/14-01:40:15.575033 7f3bb2ecfa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:40:15.575034 7f3bb2ecfa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:40:15.575126 7f3bb2ecfa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:40:15.575180 7f3bb2ecfa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:40:15.575182 7f3bb2ecfa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:40:15.575183 7f3bb2ecfa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:40:15.575183 7f3bb2ecfa80 Options.compaction_filter: None
+2021/03/14-01:40:15.575184 7f3bb2ecfa80 Options.compaction_filter_factory: None
+2021/03/14-01:40:15.575184 7f3bb2ecfa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:40:15.575185 7f3bb2ecfa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:40:15.575200 7f3bb2ecfa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1892520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1877c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:40:15.575203 7f3bb2ecfa80 Options.write_buffer_size: 134217728
+2021/03/14-01:40:15.575203 7f3bb2ecfa80 Options.max_write_buffer_number: 6
+2021/03/14-01:40:15.575204 7f3bb2ecfa80 Options.compression[0]: NoCompression
+2021/03/14-01:40:15.575205 7f3bb2ecfa80 Options.compression[1]: NoCompression
+2021/03/14-01:40:15.575205 7f3bb2ecfa80 Options.compression[2]: Snappy
+2021/03/14-01:40:15.575206 7f3bb2ecfa80 Options.compression[3]: Snappy
+2021/03/14-01:40:15.575207 7f3bb2ecfa80 Options.compression[4]: Snappy
+2021/03/14-01:40:15.575207 7f3bb2ecfa80 Options.compression[5]: Snappy
+2021/03/14-01:40:15.575208 7f3bb2ecfa80 Options.compression[6]: Snappy
+2021/03/14-01:40:15.575208 7f3bb2ecfa80 Options.bottommost_compression: Disabled
+2021/03/14-01:40:15.575209 7f3bb2ecfa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:40:15.575210 7f3bb2ecfa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:40:15.575210 7f3bb2ecfa80 Options.num_levels: 7
+2021/03/14-01:40:15.575211 7f3bb2ecfa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:40:15.575211 7f3bb2ecfa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:40:15.575212 7f3bb2ecfa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:40:15.575213 7f3bb2ecfa80 Options.compression_opts.level: -1
+2021/03/14-01:40:15.575213 7f3bb2ecfa80 Options.compression_opts.strategy: 0
+2021/03/14-01:40:15.575214 7f3bb2ecfa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:40:15.575214 7f3bb2ecfa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:40:15.575215 7f3bb2ecfa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:40:15.575216 7f3bb2ecfa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:40:15.575216 7f3bb2ecfa80 Options.target_file_size_base: 67108864
+2021/03/14-01:40:15.575217 7f3bb2ecfa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:40:15.575217 7f3bb2ecfa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:40:15.575218 7f3bb2ecfa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:40:15.575219 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:40:15.575220 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:40:15.575228 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:40:15.575229 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:40:15.575229 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:40:15.575230 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:40:15.575230 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:40:15.575231 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:40:15.575231 7f3bb2ecfa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:40:15.575232 7f3bb2ecfa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:40:15.575233 7f3bb2ecfa80 Options.arena_block_size: 16777216
+2021/03/14-01:40:15.575233 7f3bb2ecfa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:40:15.575234 7f3bb2ecfa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:40:15.575234 7f3bb2ecfa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:40:15.575235 7f3bb2ecfa80 Options.disable_auto_compactions: 0
+2021/03/14-01:40:15.575236 7f3bb2ecfa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:40:15.575237 7f3bb2ecfa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:40:15.575243 7f3bb2ecfa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:40:15.575244 7f3bb2ecfa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:40:15.575245 7f3bb2ecfa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:40:15.575245 7f3bb2ecfa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:40:15.575246 7f3bb2ecfa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:40:15.575247 7f3bb2ecfa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:40:15.575248 7f3bb2ecfa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:40:15.575248 7f3bb2ecfa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:40:15.575249 7f3bb2ecfa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:40:15.575249 7f3bb2ecfa80 Options.table_properties_collectors:
+2021/03/14-01:40:15.575250 7f3bb2ecfa80 Options.inplace_update_support: 0
+2021/03/14-01:40:15.575250 7f3bb2ecfa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:40:15.575251 7f3bb2ecfa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:40:15.575252 7f3bb2ecfa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:40:15.575252 7f3bb2ecfa80 Options.bloom_locality: 0
+2021/03/14-01:40:15.575253 7f3bb2ecfa80 Options.max_successive_merges: 0
+2021/03/14-01:40:15.575254 7f3bb2ecfa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:40:15.575254 7f3bb2ecfa80 Options.paranoid_file_checks: 0
+2021/03/14-01:40:15.575255 7f3bb2ecfa80 Options.force_consistency_checks: 0
+2021/03/14-01:40:15.575255 7f3bb2ecfa80 Options.report_bg_io_stats: 0
+2021/03/14-01:40:15.575623 7f3bb2ecfa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:40:15.575626 7f3bb2ecfa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:40:15.575767 7f3bb2ecfa80 EVENT_LOG_v1 {"time_micros": 1615682415575756, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:40:15.575772 7f3bb2ecfa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:40:16.249590 7f3bb2ecfa80 EVENT_LOG_v1 {"time_micros": 1615682416249587, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682416957273 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682416957273
new file mode 100644
index 0000000..431cead
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682416957273
@@ -0,0 +1,186 @@
+2021/03/14-01:40:16.269933 7f3bb2ecfa80 RocksDB version: 5.11.3
+2021/03/14-01:40:16.270031 7f3bb2ecfa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:40:16.270034 7f3bb2ecfa80 Compile date Mar 13 2021
+2021/03/14-01:40:16.270038 7f3bb2ecfa80 DB SUMMARY
+2021/03/14-01:40:16.270293 7f3bb2ecfa80 CURRENT file: CURRENT
+2021/03/14-01:40:16.270296 7f3bb2ecfa80 IDENTITY file: IDENTITY
+2021/03/14-01:40:16.270319 7f3bb2ecfa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:40:16.270321 7f3bb2ecfa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:40:16.270323 7f3bb2ecfa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:40:16.270332 7f3bb2ecfa80 Options.error_if_exists: 0
+2021/03/14-01:40:16.270333 7f3bb2ecfa80 Options.create_if_missing: 1
+2021/03/14-01:40:16.270334 7f3bb2ecfa80 Options.paranoid_checks: 1
+2021/03/14-01:40:16.270335 7f3bb2ecfa80 Options.env: 0x7f3bb3889080
+2021/03/14-01:40:16.270336 7f3bb2ecfa80 Options.info_log: 0x189aca0
+2021/03/14-01:40:16.270337 7f3bb2ecfa80 Options.max_file_opening_threads: 16
+2021/03/14-01:40:16.270338 7f3bb2ecfa80 Options.statistics: (nil)
+2021/03/14-01:40:16.270340 7f3bb2ecfa80 Options.use_fsync: 0
+2021/03/14-01:40:16.270341 7f3bb2ecfa80 Options.max_log_file_size: 0
+2021/03/14-01:40:16.270342 7f3bb2ecfa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:40:16.270343 7f3bb2ecfa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:40:16.270344 7f3bb2ecfa80 Options.keep_log_file_num: 1000
+2021/03/14-01:40:16.270345 7f3bb2ecfa80 Options.recycle_log_file_num: 0
+2021/03/14-01:40:16.270346 7f3bb2ecfa80 Options.allow_fallocate: 1
+2021/03/14-01:40:16.270347 7f3bb2ecfa80 Options.allow_mmap_reads: 0
+2021/03/14-01:40:16.270348 7f3bb2ecfa80 Options.allow_mmap_writes: 0
+2021/03/14-01:40:16.270349 7f3bb2ecfa80 Options.use_direct_reads: 0
+2021/03/14-01:40:16.270350 7f3bb2ecfa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:40:16.270351 7f3bb2ecfa80 Options.create_missing_column_families: 0
+2021/03/14-01:40:16.270352 7f3bb2ecfa80 Options.db_log_dir:
+2021/03/14-01:40:16.270353 7f3bb2ecfa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:40:16.270354 7f3bb2ecfa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:40:16.270355 7f3bb2ecfa80 Options.max_subcompactions: 1
+2021/03/14-01:40:16.270357 7f3bb2ecfa80 Options.max_background_flushes: -1
+2021/03/14-01:40:16.270358 7f3bb2ecfa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:40:16.270359 7f3bb2ecfa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:40:16.270360 7f3bb2ecfa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:40:16.270361 7f3bb2ecfa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:40:16.270362 7f3bb2ecfa80 Options.advise_random_on_open: 1
+2021/03/14-01:40:16.270363 7f3bb2ecfa80 Options.db_write_buffer_size: 0
+2021/03/14-01:40:16.270364 7f3bb2ecfa80 Options.write_buffer_manager: 0x1882b90
+2021/03/14-01:40:16.270365 7f3bb2ecfa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:40:16.270366 7f3bb2ecfa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:40:16.270367 7f3bb2ecfa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:40:16.270368 7f3bb2ecfa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:40:16.270369 7f3bb2ecfa80 Options.rate_limiter: (nil)
+2021/03/14-01:40:16.270372 7f3bb2ecfa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:40:16.270388 7f3bb2ecfa80 Options.wal_recovery_mode: 2
+2021/03/14-01:40:16.270390 7f3bb2ecfa80 Options.enable_thread_tracking: 0
+2021/03/14-01:40:16.270391 7f3bb2ecfa80 Options.enable_pipelined_write: 0
+2021/03/14-01:40:16.270392 7f3bb2ecfa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:40:16.270393 7f3bb2ecfa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:40:16.270394 7f3bb2ecfa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:40:16.270395 7f3bb2ecfa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:40:16.270396 7f3bb2ecfa80 Options.row_cache: None
+2021/03/14-01:40:16.270397 7f3bb2ecfa80 Options.wal_filter: None
+2021/03/14-01:40:16.270398 7f3bb2ecfa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:40:16.270399 7f3bb2ecfa80 Options.allow_ingest_behind: 0
+2021/03/14-01:40:16.270400 7f3bb2ecfa80 Options.preserve_deletes: 0
+2021/03/14-01:40:16.270401 7f3bb2ecfa80 Options.two_write_queues: 0
+2021/03/14-01:40:16.270402 7f3bb2ecfa80 Options.manual_wal_flush: 0
+2021/03/14-01:40:16.270404 7f3bb2ecfa80 Options.max_background_jobs: 16
+2021/03/14-01:40:16.270405 7f3bb2ecfa80 Options.max_background_compactions: -1
+2021/03/14-01:40:16.270406 7f3bb2ecfa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:40:16.270407 7f3bb2ecfa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:40:16.270408 7f3bb2ecfa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:40:16.270409 7f3bb2ecfa80 Options.max_total_wal_size: 0
+2021/03/14-01:40:16.270410 7f3bb2ecfa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:40:16.270411 7f3bb2ecfa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:40:16.270412 7f3bb2ecfa80 Options.max_open_files: -1
+2021/03/14-01:40:16.270413 7f3bb2ecfa80 Options.bytes_per_sync: 0
+2021/03/14-01:40:16.270414 7f3bb2ecfa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:40:16.270415 7f3bb2ecfa80 Options.compaction_readahead_size: 0
+2021/03/14-01:40:16.270416 7f3bb2ecfa80 Compression algorithms supported:
+2021/03/14-01:40:16.270417 7f3bb2ecfa80 Snappy supported: 1
+2021/03/14-01:40:16.270419 7f3bb2ecfa80 Zlib supported: 1
+2021/03/14-01:40:16.270420 7f3bb2ecfa80 Bzip supported: 1
+2021/03/14-01:40:16.270421 7f3bb2ecfa80 LZ4 supported: 1
+2021/03/14-01:40:16.270422 7f3bb2ecfa80 ZSTDNotFinal supported: 1
+2021/03/14-01:40:16.270428 7f3bb2ecfa80 ZSTD supported: 1
+2021/03/14-01:40:16.270434 7f3bb2ecfa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:40:16.270436 7f3bb2ecfa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:40:16.270589 7f3bb2ecfa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:40:16.270684 7f3bb2ecfa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:40:16.270687 7f3bb2ecfa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:40:16.270688 7f3bb2ecfa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:40:16.270689 7f3bb2ecfa80 Options.compaction_filter: None
+2021/03/14-01:40:16.270690 7f3bb2ecfa80 Options.compaction_filter_factory: None
+2021/03/14-01:40:16.270691 7f3bb2ecfa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:40:16.270693 7f3bb2ecfa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:40:16.270719 7f3bb2ecfa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1892520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1877c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:40:16.270722 7f3bb2ecfa80 Options.write_buffer_size: 134217728
+2021/03/14-01:40:16.270724 7f3bb2ecfa80 Options.max_write_buffer_number: 6
+2021/03/14-01:40:16.270725 7f3bb2ecfa80 Options.compression[0]: NoCompression
+2021/03/14-01:40:16.270726 7f3bb2ecfa80 Options.compression[1]: NoCompression
+2021/03/14-01:40:16.270727 7f3bb2ecfa80 Options.compression[2]: Snappy
+2021/03/14-01:40:16.270728 7f3bb2ecfa80 Options.compression[3]: Snappy
+2021/03/14-01:40:16.270729 7f3bb2ecfa80 Options.compression[4]: Snappy
+2021/03/14-01:40:16.270731 7f3bb2ecfa80 Options.compression[5]: Snappy
+2021/03/14-01:40:16.270732 7f3bb2ecfa80 Options.compression[6]: Snappy
+2021/03/14-01:40:16.270733 7f3bb2ecfa80 Options.bottommost_compression: Disabled
+2021/03/14-01:40:16.270734 7f3bb2ecfa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:40:16.270735 7f3bb2ecfa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:40:16.270736 7f3bb2ecfa80 Options.num_levels: 7
+2021/03/14-01:40:16.270737 7f3bb2ecfa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:40:16.270738 7f3bb2ecfa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:40:16.270739 7f3bb2ecfa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:40:16.270741 7f3bb2ecfa80 Options.compression_opts.level: -1
+2021/03/14-01:40:16.270742 7f3bb2ecfa80 Options.compression_opts.strategy: 0
+2021/03/14-01:40:16.270743 7f3bb2ecfa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:40:16.270744 7f3bb2ecfa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:40:16.270745 7f3bb2ecfa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:40:16.270746 7f3bb2ecfa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:40:16.270747 7f3bb2ecfa80 Options.target_file_size_base: 67108864
+2021/03/14-01:40:16.270748 7f3bb2ecfa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:40:16.270749 7f3bb2ecfa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:40:16.270750 7f3bb2ecfa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:40:16.270751 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:40:16.270754 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:40:16.270771 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:40:16.270772 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:40:16.270773 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:40:16.270774 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:40:16.270775 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:40:16.270776 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:40:16.270777 7f3bb2ecfa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:40:16.270778 7f3bb2ecfa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:40:16.270780 7f3bb2ecfa80 Options.arena_block_size: 16777216
+2021/03/14-01:40:16.270781 7f3bb2ecfa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:40:16.270782 7f3bb2ecfa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:40:16.270783 7f3bb2ecfa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:40:16.270784 7f3bb2ecfa80 Options.disable_auto_compactions: 0
+2021/03/14-01:40:16.270787 7f3bb2ecfa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:40:16.270788 7f3bb2ecfa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:40:16.270789 7f3bb2ecfa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:40:16.270790 7f3bb2ecfa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:40:16.270791 7f3bb2ecfa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:40:16.270792 7f3bb2ecfa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:40:16.270793 7f3bb2ecfa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:40:16.270795 7f3bb2ecfa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:40:16.270796 7f3bb2ecfa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:40:16.270797 7f3bb2ecfa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:40:16.270798 7f3bb2ecfa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:40:16.270799 7f3bb2ecfa80 Options.table_properties_collectors:
+2021/03/14-01:40:16.270801 7f3bb2ecfa80 Options.inplace_update_support: 0
+2021/03/14-01:40:16.270802 7f3bb2ecfa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:40:16.270803 7f3bb2ecfa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:40:16.270804 7f3bb2ecfa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:40:16.270805 7f3bb2ecfa80 Options.bloom_locality: 0
+2021/03/14-01:40:16.270806 7f3bb2ecfa80 Options.max_successive_merges: 0
+2021/03/14-01:40:16.270808 7f3bb2ecfa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:40:16.270809 7f3bb2ecfa80 Options.paranoid_file_checks: 0
+2021/03/14-01:40:16.270810 7f3bb2ecfa80 Options.force_consistency_checks: 0
+2021/03/14-01:40:16.270811 7f3bb2ecfa80 Options.report_bg_io_stats: 0
+2021/03/14-01:40:16.271523 7f3bb2ecfa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:40:16.271529 7f3bb2ecfa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:40:16.271781 7f3bb2ecfa80 EVENT_LOG_v1 {"time_micros": 1615682416271765, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:40:16.271790 7f3bb2ecfa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:40:16.944294 7f3bb2ecfa80 EVENT_LOG_v1 {"time_micros": 1615682416944290, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682487164253 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682487164253
new file mode 100644
index 0000000..196f39a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682487164253
@@ -0,0 +1,186 @@
+2021/03/14-01:40:16.957659 7f3bb2ecfa80 RocksDB version: 5.11.3
+2021/03/14-01:40:16.957716 7f3bb2ecfa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:40:16.957718 7f3bb2ecfa80 Compile date Mar 13 2021
+2021/03/14-01:40:16.957720 7f3bb2ecfa80 DB SUMMARY
+2021/03/14-01:40:16.957857 7f3bb2ecfa80 CURRENT file: CURRENT
+2021/03/14-01:40:16.957858 7f3bb2ecfa80 IDENTITY file: IDENTITY
+2021/03/14-01:40:16.957871 7f3bb2ecfa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:40:16.957872 7f3bb2ecfa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:40:16.957873 7f3bb2ecfa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:40:16.957878 7f3bb2ecfa80 Options.error_if_exists: 0
+2021/03/14-01:40:16.957879 7f3bb2ecfa80 Options.create_if_missing: 1
+2021/03/14-01:40:16.957879 7f3bb2ecfa80 Options.paranoid_checks: 1
+2021/03/14-01:40:16.957880 7f3bb2ecfa80 Options.env: 0x7f3bb3889080
+2021/03/14-01:40:16.957880 7f3bb2ecfa80 Options.info_log: 0x189aca0
+2021/03/14-01:40:16.957881 7f3bb2ecfa80 Options.max_file_opening_threads: 16
+2021/03/14-01:40:16.957882 7f3bb2ecfa80 Options.statistics: (nil)
+2021/03/14-01:40:16.957882 7f3bb2ecfa80 Options.use_fsync: 0
+2021/03/14-01:40:16.957883 7f3bb2ecfa80 Options.max_log_file_size: 0
+2021/03/14-01:40:16.957884 7f3bb2ecfa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:40:16.957884 7f3bb2ecfa80 Options.log_file_time_to_roll: 0
+2021/03/14-01:40:16.957885 7f3bb2ecfa80 Options.keep_log_file_num: 1000
+2021/03/14-01:40:16.957885 7f3bb2ecfa80 Options.recycle_log_file_num: 0
+2021/03/14-01:40:16.957886 7f3bb2ecfa80 Options.allow_fallocate: 1
+2021/03/14-01:40:16.957887 7f3bb2ecfa80 Options.allow_mmap_reads: 0
+2021/03/14-01:40:16.957887 7f3bb2ecfa80 Options.allow_mmap_writes: 0
+2021/03/14-01:40:16.957888 7f3bb2ecfa80 Options.use_direct_reads: 0
+2021/03/14-01:40:16.957888 7f3bb2ecfa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:40:16.957889 7f3bb2ecfa80 Options.create_missing_column_families: 0
+2021/03/14-01:40:16.957889 7f3bb2ecfa80 Options.db_log_dir:
+2021/03/14-01:40:16.957890 7f3bb2ecfa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:40:16.957890 7f3bb2ecfa80 Options.table_cache_numshardbits: 6
+2021/03/14-01:40:16.957891 7f3bb2ecfa80 Options.max_subcompactions: 1
+2021/03/14-01:40:16.957892 7f3bb2ecfa80 Options.max_background_flushes: -1
+2021/03/14-01:40:16.957892 7f3bb2ecfa80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:40:16.957893 7f3bb2ecfa80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:40:16.957893 7f3bb2ecfa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:40:16.957894 7f3bb2ecfa80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:40:16.957894 7f3bb2ecfa80 Options.advise_random_on_open: 1
+2021/03/14-01:40:16.957895 7f3bb2ecfa80 Options.db_write_buffer_size: 0
+2021/03/14-01:40:16.957896 7f3bb2ecfa80 Options.write_buffer_manager: 0x1882b90
+2021/03/14-01:40:16.957896 7f3bb2ecfa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:40:16.957897 7f3bb2ecfa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:40:16.957897 7f3bb2ecfa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:40:16.957898 7f3bb2ecfa80 Options.use_adaptive_mutex: 0
+2021/03/14-01:40:16.957898 7f3bb2ecfa80 Options.rate_limiter: (nil)
+2021/03/14-01:40:16.957900 7f3bb2ecfa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:40:16.957907 7f3bb2ecfa80 Options.wal_recovery_mode: 2
+2021/03/14-01:40:16.957908 7f3bb2ecfa80 Options.enable_thread_tracking: 0
+2021/03/14-01:40:16.957909 7f3bb2ecfa80 Options.enable_pipelined_write: 0
+2021/03/14-01:40:16.957909 7f3bb2ecfa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:40:16.957910 7f3bb2ecfa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:40:16.957910 7f3bb2ecfa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:40:16.957911 7f3bb2ecfa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:40:16.957912 7f3bb2ecfa80 Options.row_cache: None
+2021/03/14-01:40:16.957912 7f3bb2ecfa80 Options.wal_filter: None
+2021/03/14-01:40:16.957913 7f3bb2ecfa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:40:16.957913 7f3bb2ecfa80 Options.allow_ingest_behind: 0
+2021/03/14-01:40:16.957914 7f3bb2ecfa80 Options.preserve_deletes: 0
+2021/03/14-01:40:16.957914 7f3bb2ecfa80 Options.two_write_queues: 0
+2021/03/14-01:40:16.957915 7f3bb2ecfa80 Options.manual_wal_flush: 0
+2021/03/14-01:40:16.957916 7f3bb2ecfa80 Options.max_background_jobs: 16
+2021/03/14-01:40:16.957917 7f3bb2ecfa80 Options.max_background_compactions: -1
+2021/03/14-01:40:16.957917 7f3bb2ecfa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:40:16.957918 7f3bb2ecfa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:40:16.957918 7f3bb2ecfa80 Options.delayed_write_rate : 16777216
+2021/03/14-01:40:16.957919 7f3bb2ecfa80 Options.max_total_wal_size: 0
+2021/03/14-01:40:16.957920 7f3bb2ecfa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:40:16.957920 7f3bb2ecfa80 Options.stats_dump_period_sec: 600
+2021/03/14-01:40:16.957921 7f3bb2ecfa80 Options.max_open_files: -1
+2021/03/14-01:40:16.957921 7f3bb2ecfa80 Options.bytes_per_sync: 0
+2021/03/14-01:40:16.957922 7f3bb2ecfa80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:40:16.957922 7f3bb2ecfa80 Options.compaction_readahead_size: 0
+2021/03/14-01:40:16.957923 7f3bb2ecfa80 Compression algorithms supported:
+2021/03/14-01:40:16.957923 7f3bb2ecfa80 Snappy supported: 1
+2021/03/14-01:40:16.957924 7f3bb2ecfa80 Zlib supported: 1
+2021/03/14-01:40:16.957925 7f3bb2ecfa80 Bzip supported: 1
+2021/03/14-01:40:16.957925 7f3bb2ecfa80 LZ4 supported: 1
+2021/03/14-01:40:16.957926 7f3bb2ecfa80 ZSTDNotFinal supported: 1
+2021/03/14-01:40:16.957930 7f3bb2ecfa80 ZSTD supported: 1
+2021/03/14-01:40:16.957933 7f3bb2ecfa80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:40:16.957934 7f3bb2ecfa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:40:16.958027 7f3bb2ecfa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:40:16.958080 7f3bb2ecfa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:40:16.958081 7f3bb2ecfa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:40:16.958082 7f3bb2ecfa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:40:16.958083 7f3bb2ecfa80 Options.compaction_filter: None
+2021/03/14-01:40:16.958083 7f3bb2ecfa80 Options.compaction_filter_factory: None
+2021/03/14-01:40:16.958084 7f3bb2ecfa80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:40:16.958085 7f3bb2ecfa80 Options.table_factory: BlockBasedTable
+2021/03/14-01:40:16.958101 7f3bb2ecfa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1892520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1877c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:40:16.958106 7f3bb2ecfa80 Options.write_buffer_size: 134217728
+2021/03/14-01:40:16.958107 7f3bb2ecfa80 Options.max_write_buffer_number: 6
+2021/03/14-01:40:16.958108 7f3bb2ecfa80 Options.compression[0]: NoCompression
+2021/03/14-01:40:16.958109 7f3bb2ecfa80 Options.compression[1]: NoCompression
+2021/03/14-01:40:16.958109 7f3bb2ecfa80 Options.compression[2]: Snappy
+2021/03/14-01:40:16.958110 7f3bb2ecfa80 Options.compression[3]: Snappy
+2021/03/14-01:40:16.958110 7f3bb2ecfa80 Options.compression[4]: Snappy
+2021/03/14-01:40:16.958111 7f3bb2ecfa80 Options.compression[5]: Snappy
+2021/03/14-01:40:16.958111 7f3bb2ecfa80 Options.compression[6]: Snappy
+2021/03/14-01:40:16.958112 7f3bb2ecfa80 Options.bottommost_compression: Disabled
+2021/03/14-01:40:16.958113 7f3bb2ecfa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:40:16.958114 7f3bb2ecfa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:40:16.958114 7f3bb2ecfa80 Options.num_levels: 7
+2021/03/14-01:40:16.958115 7f3bb2ecfa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:40:16.958115 7f3bb2ecfa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:40:16.958116 7f3bb2ecfa80 Options.compression_opts.window_bits: -14
+2021/03/14-01:40:16.958116 7f3bb2ecfa80 Options.compression_opts.level: -1
+2021/03/14-01:40:16.958117 7f3bb2ecfa80 Options.compression_opts.strategy: 0
+2021/03/14-01:40:16.958118 7f3bb2ecfa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:40:16.958118 7f3bb2ecfa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:40:16.958119 7f3bb2ecfa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:40:16.958119 7f3bb2ecfa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:40:16.958120 7f3bb2ecfa80 Options.target_file_size_base: 67108864
+2021/03/14-01:40:16.958120 7f3bb2ecfa80 Options.target_file_size_multiplier: 1
+2021/03/14-01:40:16.958121 7f3bb2ecfa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:40:16.958122 7f3bb2ecfa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:40:16.958122 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:40:16.958124 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:40:16.958131 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:40:16.958132 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:40:16.958133 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:40:16.958133 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:40:16.958134 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:40:16.958134 7f3bb2ecfa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:40:16.958135 7f3bb2ecfa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:40:16.958136 7f3bb2ecfa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:40:16.958136 7f3bb2ecfa80 Options.arena_block_size: 16777216
+2021/03/14-01:40:16.958137 7f3bb2ecfa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:40:16.958137 7f3bb2ecfa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:40:16.958138 7f3bb2ecfa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:40:16.958138 7f3bb2ecfa80 Options.disable_auto_compactions: 0
+2021/03/14-01:40:16.958140 7f3bb2ecfa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:40:16.958141 7f3bb2ecfa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:40:16.958141 7f3bb2ecfa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:40:16.958142 7f3bb2ecfa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:40:16.958142 7f3bb2ecfa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:40:16.958143 7f3bb2ecfa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:40:16.958144 7f3bb2ecfa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:40:16.958145 7f3bb2ecfa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:40:16.958145 7f3bb2ecfa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:40:16.958146 7f3bb2ecfa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:40:16.958146 7f3bb2ecfa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:40:16.958147 7f3bb2ecfa80 Options.table_properties_collectors:
+2021/03/14-01:40:16.958147 7f3bb2ecfa80 Options.inplace_update_support: 0
+2021/03/14-01:40:16.958148 7f3bb2ecfa80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:40:16.958149 7f3bb2ecfa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:40:16.958149 7f3bb2ecfa80 Options.memtable_huge_page_size: 0
+2021/03/14-01:40:16.958150 7f3bb2ecfa80 Options.bloom_locality: 0
+2021/03/14-01:40:16.958151 7f3bb2ecfa80 Options.max_successive_merges: 0
+2021/03/14-01:40:16.958151 7f3bb2ecfa80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:40:16.958152 7f3bb2ecfa80 Options.paranoid_file_checks: 0
+2021/03/14-01:40:16.958152 7f3bb2ecfa80 Options.force_consistency_checks: 0
+2021/03/14-01:40:16.958153 7f3bb2ecfa80 Options.report_bg_io_stats: 0
+2021/03/14-01:40:16.958532 7f3bb2ecfa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:40:16.958534 7f3bb2ecfa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:40:16.958679 7f3bb2ecfa80 EVENT_LOG_v1 {"time_micros": 1615682416958668, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:40:16.958684 7f3bb2ecfa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:40:17.639559 7f3bb2ecfa80 EVENT_LOG_v1 {"time_micros": 1615682417639556, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682487849531 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682487849531
new file mode 100644
index 0000000..fe13fee
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682487849531
@@ -0,0 +1,186 @@
+2021/03/14-01:41:27.164859 7f1cb404ca80 RocksDB version: 5.11.3
+2021/03/14-01:41:27.164938 7f1cb404ca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:41:27.164940 7f1cb404ca80 Compile date Mar 13 2021
+2021/03/14-01:41:27.164943 7f1cb404ca80 DB SUMMARY
+2021/03/14-01:41:27.165100 7f1cb404ca80 CURRENT file: CURRENT
+2021/03/14-01:41:27.165101 7f1cb404ca80 IDENTITY file: IDENTITY
+2021/03/14-01:41:27.165117 7f1cb404ca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:41:27.165118 7f1cb404ca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:41:27.165119 7f1cb404ca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:41:27.165125 7f1cb404ca80 Options.error_if_exists: 0
+2021/03/14-01:41:27.165125 7f1cb404ca80 Options.create_if_missing: 1
+2021/03/14-01:41:27.165126 7f1cb404ca80 Options.paranoid_checks: 1
+2021/03/14-01:41:27.165127 7f1cb404ca80 Options.env: 0x7f1cb4a06080
+2021/03/14-01:41:27.165127 7f1cb404ca80 Options.info_log: 0x207cca0
+2021/03/14-01:41:27.165128 7f1cb404ca80 Options.max_file_opening_threads: 16
+2021/03/14-01:41:27.165129 7f1cb404ca80 Options.statistics: (nil)
+2021/03/14-01:41:27.165130 7f1cb404ca80 Options.use_fsync: 0
+2021/03/14-01:41:27.165130 7f1cb404ca80 Options.max_log_file_size: 0
+2021/03/14-01:41:27.165131 7f1cb404ca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:41:27.165132 7f1cb404ca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:41:27.165132 7f1cb404ca80 Options.keep_log_file_num: 1000
+2021/03/14-01:41:27.165133 7f1cb404ca80 Options.recycle_log_file_num: 0
+2021/03/14-01:41:27.165134 7f1cb404ca80 Options.allow_fallocate: 1
+2021/03/14-01:41:27.165134 7f1cb404ca80 Options.allow_mmap_reads: 0
+2021/03/14-01:41:27.165135 7f1cb404ca80 Options.allow_mmap_writes: 0
+2021/03/14-01:41:27.165136 7f1cb404ca80 Options.use_direct_reads: 0
+2021/03/14-01:41:27.165136 7f1cb404ca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:41:27.165137 7f1cb404ca80 Options.create_missing_column_families: 0
+2021/03/14-01:41:27.165137 7f1cb404ca80 Options.db_log_dir:
+2021/03/14-01:41:27.165138 7f1cb404ca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:41:27.165139 7f1cb404ca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:41:27.165139 7f1cb404ca80 Options.max_subcompactions: 1
+2021/03/14-01:41:27.165140 7f1cb404ca80 Options.max_background_flushes: -1
+2021/03/14-01:41:27.165141 7f1cb404ca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:41:27.165141 7f1cb404ca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:41:27.165142 7f1cb404ca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:41:27.165143 7f1cb404ca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:41:27.165143 7f1cb404ca80 Options.advise_random_on_open: 1
+2021/03/14-01:41:27.165144 7f1cb404ca80 Options.db_write_buffer_size: 0
+2021/03/14-01:41:27.165144 7f1cb404ca80 Options.write_buffer_manager: 0x2064b90
+2021/03/14-01:41:27.165145 7f1cb404ca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:41:27.165146 7f1cb404ca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:41:27.165146 7f1cb404ca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:41:27.165147 7f1cb404ca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:41:27.165148 7f1cb404ca80 Options.rate_limiter: (nil)
+2021/03/14-01:41:27.165149 7f1cb404ca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:41:27.165159 7f1cb404ca80 Options.wal_recovery_mode: 2
+2021/03/14-01:41:27.165160 7f1cb404ca80 Options.enable_thread_tracking: 0
+2021/03/14-01:41:27.165161 7f1cb404ca80 Options.enable_pipelined_write: 0
+2021/03/14-01:41:27.165161 7f1cb404ca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:41:27.165162 7f1cb404ca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:41:27.165162 7f1cb404ca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:41:27.165163 7f1cb404ca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:41:27.165164 7f1cb404ca80 Options.row_cache: None
+2021/03/14-01:41:27.165164 7f1cb404ca80 Options.wal_filter: None
+2021/03/14-01:41:27.165165 7f1cb404ca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:41:27.165166 7f1cb404ca80 Options.allow_ingest_behind: 0
+2021/03/14-01:41:27.165166 7f1cb404ca80 Options.preserve_deletes: 0
+2021/03/14-01:41:27.165167 7f1cb404ca80 Options.two_write_queues: 0
+2021/03/14-01:41:27.165167 7f1cb404ca80 Options.manual_wal_flush: 0
+2021/03/14-01:41:27.165169 7f1cb404ca80 Options.max_background_jobs: 16
+2021/03/14-01:41:27.165170 7f1cb404ca80 Options.max_background_compactions: -1
+2021/03/14-01:41:27.165170 7f1cb404ca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:41:27.165171 7f1cb404ca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:41:27.165172 7f1cb404ca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:41:27.165172 7f1cb404ca80 Options.max_total_wal_size: 0
+2021/03/14-01:41:27.165173 7f1cb404ca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:41:27.165174 7f1cb404ca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:41:27.165174 7f1cb404ca80 Options.max_open_files: -1
+2021/03/14-01:41:27.165175 7f1cb404ca80 Options.bytes_per_sync: 0
+2021/03/14-01:41:27.165175 7f1cb404ca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:41:27.165176 7f1cb404ca80 Options.compaction_readahead_size: 0
+2021/03/14-01:41:27.165177 7f1cb404ca80 Compression algorithms supported:
+2021/03/14-01:41:27.165177 7f1cb404ca80 Snappy supported: 1
+2021/03/14-01:41:27.165178 7f1cb404ca80 Zlib supported: 1
+2021/03/14-01:41:27.165179 7f1cb404ca80 Bzip supported: 1
+2021/03/14-01:41:27.165179 7f1cb404ca80 LZ4 supported: 1
+2021/03/14-01:41:27.165180 7f1cb404ca80 ZSTDNotFinal supported: 1
+2021/03/14-01:41:27.165186 7f1cb404ca80 ZSTD supported: 1
+2021/03/14-01:41:27.165191 7f1cb404ca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:41:27.165193 7f1cb404ca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:41:27.168416 7f1cb404ca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:41:27.168549 7f1cb404ca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:41:27.168551 7f1cb404ca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:41:27.168553 7f1cb404ca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:41:27.168553 7f1cb404ca80 Options.compaction_filter: None
+2021/03/14-01:41:27.168554 7f1cb404ca80 Options.compaction_filter_factory: None
+2021/03/14-01:41:27.168555 7f1cb404ca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:41:27.168556 7f1cb404ca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:41:27.168584 7f1cb404ca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2074520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2059c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:41:27.168593 7f1cb404ca80 Options.write_buffer_size: 134217728
+2021/03/14-01:41:27.168593 7f1cb404ca80 Options.max_write_buffer_number: 6
+2021/03/14-01:41:27.168594 7f1cb404ca80 Options.compression[0]: NoCompression
+2021/03/14-01:41:27.168595 7f1cb404ca80 Options.compression[1]: NoCompression
+2021/03/14-01:41:27.168596 7f1cb404ca80 Options.compression[2]: Snappy
+2021/03/14-01:41:27.168596 7f1cb404ca80 Options.compression[3]: Snappy
+2021/03/14-01:41:27.168597 7f1cb404ca80 Options.compression[4]: Snappy
+2021/03/14-01:41:27.168598 7f1cb404ca80 Options.compression[5]: Snappy
+2021/03/14-01:41:27.168598 7f1cb404ca80 Options.compression[6]: Snappy
+2021/03/14-01:41:27.168599 7f1cb404ca80 Options.bottommost_compression: Disabled
+2021/03/14-01:41:27.168600 7f1cb404ca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:41:27.168601 7f1cb404ca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:41:27.168601 7f1cb404ca80 Options.num_levels: 7
+2021/03/14-01:41:27.168602 7f1cb404ca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:41:27.168603 7f1cb404ca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:41:27.168603 7f1cb404ca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:41:27.168604 7f1cb404ca80 Options.compression_opts.level: -1
+2021/03/14-01:41:27.168605 7f1cb404ca80 Options.compression_opts.strategy: 0
+2021/03/14-01:41:27.168605 7f1cb404ca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:41:27.168606 7f1cb404ca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:41:27.168606 7f1cb404ca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:41:27.168607 7f1cb404ca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:41:27.168608 7f1cb404ca80 Options.target_file_size_base: 67108864
+2021/03/14-01:41:27.168608 7f1cb404ca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:41:27.168609 7f1cb404ca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:41:27.168610 7f1cb404ca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:41:27.168610 7f1cb404ca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:41:27.168612 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:41:27.168632 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:41:27.168632 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:41:27.168633 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:41:27.168634 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:41:27.168634 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:41:27.168635 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:41:27.168636 7f1cb404ca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:41:27.168636 7f1cb404ca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:41:27.168637 7f1cb404ca80 Options.arena_block_size: 16777216
+2021/03/14-01:41:27.168638 7f1cb404ca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:41:27.168638 7f1cb404ca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:41:27.168639 7f1cb404ca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:41:27.168639 7f1cb404ca80 Options.disable_auto_compactions: 0
+2021/03/14-01:41:27.168641 7f1cb404ca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:41:27.168642 7f1cb404ca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:41:27.168643 7f1cb404ca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:41:27.168643 7f1cb404ca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:41:27.168644 7f1cb404ca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:41:27.168645 7f1cb404ca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:41:27.168645 7f1cb404ca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:41:27.168647 7f1cb404ca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:41:27.168647 7f1cb404ca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:41:27.168648 7f1cb404ca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:41:27.168648 7f1cb404ca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:41:27.168649 7f1cb404ca80 Options.table_properties_collectors:
+2021/03/14-01:41:27.168650 7f1cb404ca80 Options.inplace_update_support: 0
+2021/03/14-01:41:27.168650 7f1cb404ca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:41:27.168651 7f1cb404ca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:41:27.168652 7f1cb404ca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:41:27.168653 7f1cb404ca80 Options.bloom_locality: 0
+2021/03/14-01:41:27.168653 7f1cb404ca80 Options.max_successive_merges: 0
+2021/03/14-01:41:27.168654 7f1cb404ca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:41:27.168654 7f1cb404ca80 Options.paranoid_file_checks: 0
+2021/03/14-01:41:27.168655 7f1cb404ca80 Options.force_consistency_checks: 0
+2021/03/14-01:41:27.168656 7f1cb404ca80 Options.report_bg_io_stats: 0
+2021/03/14-01:41:27.169259 7f1cb404ca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:41:27.169262 7f1cb404ca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:41:27.169456 7f1cb404ca80 EVENT_LOG_v1 {"time_micros": 1615682487169440, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:41:27.169464 7f1cb404ca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:41:27.837963 7f1cb404ca80 EVENT_LOG_v1 {"time_micros": 1615682487837959, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682488529113 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682488529113
new file mode 100644
index 0000000..1953dc7
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682488529113
@@ -0,0 +1,186 @@
+2021/03/14-01:41:27.849956 7f1cb404ca80 RocksDB version: 5.11.3
+2021/03/14-01:41:27.850009 7f1cb404ca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:41:27.850010 7f1cb404ca80 Compile date Mar 13 2021
+2021/03/14-01:41:27.850012 7f1cb404ca80 DB SUMMARY
+2021/03/14-01:41:27.850146 7f1cb404ca80 CURRENT file: CURRENT
+2021/03/14-01:41:27.850147 7f1cb404ca80 IDENTITY file: IDENTITY
+2021/03/14-01:41:27.850160 7f1cb404ca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:41:27.850161 7f1cb404ca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:41:27.850162 7f1cb404ca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:41:27.850167 7f1cb404ca80 Options.error_if_exists: 0
+2021/03/14-01:41:27.850167 7f1cb404ca80 Options.create_if_missing: 1
+2021/03/14-01:41:27.850168 7f1cb404ca80 Options.paranoid_checks: 1
+2021/03/14-01:41:27.850169 7f1cb404ca80 Options.env: 0x7f1cb4a06080
+2021/03/14-01:41:27.850169 7f1cb404ca80 Options.info_log: 0x207cca0
+2021/03/14-01:41:27.850170 7f1cb404ca80 Options.max_file_opening_threads: 16
+2021/03/14-01:41:27.850170 7f1cb404ca80 Options.statistics: (nil)
+2021/03/14-01:41:27.850171 7f1cb404ca80 Options.use_fsync: 0
+2021/03/14-01:41:27.850172 7f1cb404ca80 Options.max_log_file_size: 0
+2021/03/14-01:41:27.850172 7f1cb404ca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:41:27.850173 7f1cb404ca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:41:27.850173 7f1cb404ca80 Options.keep_log_file_num: 1000
+2021/03/14-01:41:27.850174 7f1cb404ca80 Options.recycle_log_file_num: 0
+2021/03/14-01:41:27.850175 7f1cb404ca80 Options.allow_fallocate: 1
+2021/03/14-01:41:27.850175 7f1cb404ca80 Options.allow_mmap_reads: 0
+2021/03/14-01:41:27.850176 7f1cb404ca80 Options.allow_mmap_writes: 0
+2021/03/14-01:41:27.850176 7f1cb404ca80 Options.use_direct_reads: 0
+2021/03/14-01:41:27.850177 7f1cb404ca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:41:27.850177 7f1cb404ca80 Options.create_missing_column_families: 0
+2021/03/14-01:41:27.850178 7f1cb404ca80 Options.db_log_dir:
+2021/03/14-01:41:27.850178 7f1cb404ca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:41:27.850179 7f1cb404ca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:41:27.850179 7f1cb404ca80 Options.max_subcompactions: 1
+2021/03/14-01:41:27.850180 7f1cb404ca80 Options.max_background_flushes: -1
+2021/03/14-01:41:27.850181 7f1cb404ca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:41:27.850181 7f1cb404ca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:41:27.850182 7f1cb404ca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:41:27.850182 7f1cb404ca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:41:27.850183 7f1cb404ca80 Options.advise_random_on_open: 1
+2021/03/14-01:41:27.850183 7f1cb404ca80 Options.db_write_buffer_size: 0
+2021/03/14-01:41:27.850184 7f1cb404ca80 Options.write_buffer_manager: 0x2064b90
+2021/03/14-01:41:27.850184 7f1cb404ca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:41:27.850185 7f1cb404ca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:41:27.850185 7f1cb404ca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:41:27.850186 7f1cb404ca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:41:27.850187 7f1cb404ca80 Options.rate_limiter: (nil)
+2021/03/14-01:41:27.850188 7f1cb404ca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:41:27.850196 7f1cb404ca80 Options.wal_recovery_mode: 2
+2021/03/14-01:41:27.850196 7f1cb404ca80 Options.enable_thread_tracking: 0
+2021/03/14-01:41:27.850197 7f1cb404ca80 Options.enable_pipelined_write: 0
+2021/03/14-01:41:27.850197 7f1cb404ca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:41:27.850198 7f1cb404ca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:41:27.850198 7f1cb404ca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:41:27.850199 7f1cb404ca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:41:27.850200 7f1cb404ca80 Options.row_cache: None
+2021/03/14-01:41:27.850200 7f1cb404ca80 Options.wal_filter: None
+2021/03/14-01:41:27.850201 7f1cb404ca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:41:27.850201 7f1cb404ca80 Options.allow_ingest_behind: 0
+2021/03/14-01:41:27.850202 7f1cb404ca80 Options.preserve_deletes: 0
+2021/03/14-01:41:27.850202 7f1cb404ca80 Options.two_write_queues: 0
+2021/03/14-01:41:27.850203 7f1cb404ca80 Options.manual_wal_flush: 0
+2021/03/14-01:41:27.850204 7f1cb404ca80 Options.max_background_jobs: 16
+2021/03/14-01:41:27.850205 7f1cb404ca80 Options.max_background_compactions: -1
+2021/03/14-01:41:27.850205 7f1cb404ca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:41:27.850206 7f1cb404ca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:41:27.850206 7f1cb404ca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:41:27.850207 7f1cb404ca80 Options.max_total_wal_size: 0
+2021/03/14-01:41:27.850207 7f1cb404ca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:41:27.850208 7f1cb404ca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:41:27.850209 7f1cb404ca80 Options.max_open_files: -1
+2021/03/14-01:41:27.850209 7f1cb404ca80 Options.bytes_per_sync: 0
+2021/03/14-01:41:27.850210 7f1cb404ca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:41:27.850210 7f1cb404ca80 Options.compaction_readahead_size: 0
+2021/03/14-01:41:27.850211 7f1cb404ca80 Compression algorithms supported:
+2021/03/14-01:41:27.850211 7f1cb404ca80 Snappy supported: 1
+2021/03/14-01:41:27.850212 7f1cb404ca80 Zlib supported: 1
+2021/03/14-01:41:27.850212 7f1cb404ca80 Bzip supported: 1
+2021/03/14-01:41:27.850213 7f1cb404ca80 LZ4 supported: 1
+2021/03/14-01:41:27.850214 7f1cb404ca80 ZSTDNotFinal supported: 1
+2021/03/14-01:41:27.850217 7f1cb404ca80 ZSTD supported: 1
+2021/03/14-01:41:27.850220 7f1cb404ca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:41:27.850222 7f1cb404ca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:41:27.850355 7f1cb404ca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:41:27.850409 7f1cb404ca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:41:27.850411 7f1cb404ca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:41:27.850412 7f1cb404ca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:41:27.850412 7f1cb404ca80 Options.compaction_filter: None
+2021/03/14-01:41:27.850413 7f1cb404ca80 Options.compaction_filter_factory: None
+2021/03/14-01:41:27.850413 7f1cb404ca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:41:27.850414 7f1cb404ca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:41:27.850430 7f1cb404ca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2074520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2059c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:41:27.850436 7f1cb404ca80 Options.write_buffer_size: 134217728
+2021/03/14-01:41:27.850437 7f1cb404ca80 Options.max_write_buffer_number: 6
+2021/03/14-01:41:27.850438 7f1cb404ca80 Options.compression[0]: NoCompression
+2021/03/14-01:41:27.850438 7f1cb404ca80 Options.compression[1]: NoCompression
+2021/03/14-01:41:27.850439 7f1cb404ca80 Options.compression[2]: Snappy
+2021/03/14-01:41:27.850440 7f1cb404ca80 Options.compression[3]: Snappy
+2021/03/14-01:41:27.850440 7f1cb404ca80 Options.compression[4]: Snappy
+2021/03/14-01:41:27.850441 7f1cb404ca80 Options.compression[5]: Snappy
+2021/03/14-01:41:27.850441 7f1cb404ca80 Options.compression[6]: Snappy
+2021/03/14-01:41:27.850442 7f1cb404ca80 Options.bottommost_compression: Disabled
+2021/03/14-01:41:27.850443 7f1cb404ca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:41:27.850443 7f1cb404ca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:41:27.850444 7f1cb404ca80 Options.num_levels: 7
+2021/03/14-01:41:27.850444 7f1cb404ca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:41:27.850445 7f1cb404ca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:41:27.850446 7f1cb404ca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:41:27.850446 7f1cb404ca80 Options.compression_opts.level: -1
+2021/03/14-01:41:27.850447 7f1cb404ca80 Options.compression_opts.strategy: 0
+2021/03/14-01:41:27.850447 7f1cb404ca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:41:27.850448 7f1cb404ca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:41:27.850448 7f1cb404ca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:41:27.850449 7f1cb404ca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:41:27.850449 7f1cb404ca80 Options.target_file_size_base: 67108864
+2021/03/14-01:41:27.850450 7f1cb404ca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:41:27.850451 7f1cb404ca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:41:27.850451 7f1cb404ca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:41:27.850452 7f1cb404ca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:41:27.850453 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:41:27.850462 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:41:27.850462 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:41:27.850463 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:41:27.850463 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:41:27.850464 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:41:27.850465 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:41:27.850465 7f1cb404ca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:41:27.850466 7f1cb404ca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:41:27.850466 7f1cb404ca80 Options.arena_block_size: 16777216
+2021/03/14-01:41:27.850467 7f1cb404ca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:41:27.850467 7f1cb404ca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:41:27.850468 7f1cb404ca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:41:27.850469 7f1cb404ca80 Options.disable_auto_compactions: 0
+2021/03/14-01:41:27.850470 7f1cb404ca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:41:27.850471 7f1cb404ca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:41:27.850472 7f1cb404ca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:41:27.850472 7f1cb404ca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:41:27.850473 7f1cb404ca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:41:27.850473 7f1cb404ca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:41:27.850474 7f1cb404ca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:41:27.850475 7f1cb404ca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:41:27.850475 7f1cb404ca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:41:27.850476 7f1cb404ca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:41:27.850477 7f1cb404ca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:41:27.850477 7f1cb404ca80 Options.table_properties_collectors:
+2021/03/14-01:41:27.850478 7f1cb404ca80 Options.inplace_update_support: 0
+2021/03/14-01:41:27.850478 7f1cb404ca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:41:27.850479 7f1cb404ca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:41:27.850480 7f1cb404ca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:41:27.850480 7f1cb404ca80 Options.bloom_locality: 0
+2021/03/14-01:41:27.850481 7f1cb404ca80 Options.max_successive_merges: 0
+2021/03/14-01:41:27.850481 7f1cb404ca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:41:27.850482 7f1cb404ca80 Options.paranoid_file_checks: 0
+2021/03/14-01:41:27.850482 7f1cb404ca80 Options.force_consistency_checks: 0
+2021/03/14-01:41:27.850483 7f1cb404ca80 Options.report_bg_io_stats: 0
+2021/03/14-01:41:27.851011 7f1cb404ca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:41:27.851014 7f1cb404ca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:41:27.851153 7f1cb404ca80 EVENT_LOG_v1 {"time_micros": 1615682487851143, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:41:27.851158 7f1cb404ca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:41:28.518013 7f1cb404ca80 EVENT_LOG_v1 {"time_micros": 1615682488518009, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615682489199116 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682489199116
new file mode 100644
index 0000000..718a088
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615682489199116
@@ -0,0 +1,186 @@
+2021/03/14-01:41:28.529520 7f1cb404ca80 RocksDB version: 5.11.3
+2021/03/14-01:41:28.529573 7f1cb404ca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:41:28.529575 7f1cb404ca80 Compile date Mar 13 2021
+2021/03/14-01:41:28.529577 7f1cb404ca80 DB SUMMARY
+2021/03/14-01:41:28.529717 7f1cb404ca80 CURRENT file: CURRENT
+2021/03/14-01:41:28.529718 7f1cb404ca80 IDENTITY file: IDENTITY
+2021/03/14-01:41:28.529732 7f1cb404ca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:41:28.529733 7f1cb404ca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:41:28.529734 7f1cb404ca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:41:28.529739 7f1cb404ca80 Options.error_if_exists: 0
+2021/03/14-01:41:28.529739 7f1cb404ca80 Options.create_if_missing: 1
+2021/03/14-01:41:28.529740 7f1cb404ca80 Options.paranoid_checks: 1
+2021/03/14-01:41:28.529740 7f1cb404ca80 Options.env: 0x7f1cb4a06080
+2021/03/14-01:41:28.529741 7f1cb404ca80 Options.info_log: 0x207cca0
+2021/03/14-01:41:28.529742 7f1cb404ca80 Options.max_file_opening_threads: 16
+2021/03/14-01:41:28.529742 7f1cb404ca80 Options.statistics: (nil)
+2021/03/14-01:41:28.529743 7f1cb404ca80 Options.use_fsync: 0
+2021/03/14-01:41:28.529744 7f1cb404ca80 Options.max_log_file_size: 0
+2021/03/14-01:41:28.529744 7f1cb404ca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:41:28.529745 7f1cb404ca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:41:28.529745 7f1cb404ca80 Options.keep_log_file_num: 1000
+2021/03/14-01:41:28.529746 7f1cb404ca80 Options.recycle_log_file_num: 0
+2021/03/14-01:41:28.529747 7f1cb404ca80 Options.allow_fallocate: 1
+2021/03/14-01:41:28.529747 7f1cb404ca80 Options.allow_mmap_reads: 0
+2021/03/14-01:41:28.529748 7f1cb404ca80 Options.allow_mmap_writes: 0
+2021/03/14-01:41:28.529748 7f1cb404ca80 Options.use_direct_reads: 0
+2021/03/14-01:41:28.529749 7f1cb404ca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:41:28.529749 7f1cb404ca80 Options.create_missing_column_families: 0
+2021/03/14-01:41:28.529750 7f1cb404ca80 Options.db_log_dir:
+2021/03/14-01:41:28.529750 7f1cb404ca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:41:28.529751 7f1cb404ca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:41:28.529752 7f1cb404ca80 Options.max_subcompactions: 1
+2021/03/14-01:41:28.529752 7f1cb404ca80 Options.max_background_flushes: -1
+2021/03/14-01:41:28.529753 7f1cb404ca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:41:28.529753 7f1cb404ca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:41:28.529754 7f1cb404ca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:41:28.529754 7f1cb404ca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:41:28.529755 7f1cb404ca80 Options.advise_random_on_open: 1
+2021/03/14-01:41:28.529756 7f1cb404ca80 Options.db_write_buffer_size: 0
+2021/03/14-01:41:28.529756 7f1cb404ca80 Options.write_buffer_manager: 0x2064b90
+2021/03/14-01:41:28.529757 7f1cb404ca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:41:28.529757 7f1cb404ca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:41:28.529758 7f1cb404ca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:41:28.529758 7f1cb404ca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:41:28.529759 7f1cb404ca80 Options.rate_limiter: (nil)
+2021/03/14-01:41:28.529761 7f1cb404ca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:41:28.529768 7f1cb404ca80 Options.wal_recovery_mode: 2
+2021/03/14-01:41:28.529769 7f1cb404ca80 Options.enable_thread_tracking: 0
+2021/03/14-01:41:28.529769 7f1cb404ca80 Options.enable_pipelined_write: 0
+2021/03/14-01:41:28.529770 7f1cb404ca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:41:28.529770 7f1cb404ca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:41:28.529771 7f1cb404ca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:41:28.529772 7f1cb404ca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:41:28.529772 7f1cb404ca80 Options.row_cache: None
+2021/03/14-01:41:28.529773 7f1cb404ca80 Options.wal_filter: None
+2021/03/14-01:41:28.529773 7f1cb404ca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:41:28.529774 7f1cb404ca80 Options.allow_ingest_behind: 0
+2021/03/14-01:41:28.529774 7f1cb404ca80 Options.preserve_deletes: 0
+2021/03/14-01:41:28.529775 7f1cb404ca80 Options.two_write_queues: 0
+2021/03/14-01:41:28.529775 7f1cb404ca80 Options.manual_wal_flush: 0
+2021/03/14-01:41:28.529777 7f1cb404ca80 Options.max_background_jobs: 16
+2021/03/14-01:41:28.529777 7f1cb404ca80 Options.max_background_compactions: -1
+2021/03/14-01:41:28.529778 7f1cb404ca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:41:28.529778 7f1cb404ca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:41:28.529779 7f1cb404ca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:41:28.529779 7f1cb404ca80 Options.max_total_wal_size: 0
+2021/03/14-01:41:28.529780 7f1cb404ca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:41:28.529781 7f1cb404ca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:41:28.529781 7f1cb404ca80 Options.max_open_files: -1
+2021/03/14-01:41:28.529782 7f1cb404ca80 Options.bytes_per_sync: 0
+2021/03/14-01:41:28.529782 7f1cb404ca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:41:28.529783 7f1cb404ca80 Options.compaction_readahead_size: 0
+2021/03/14-01:41:28.529783 7f1cb404ca80 Compression algorithms supported:
+2021/03/14-01:41:28.529784 7f1cb404ca80 Snappy supported: 1
+2021/03/14-01:41:28.529785 7f1cb404ca80 Zlib supported: 1
+2021/03/14-01:41:28.529785 7f1cb404ca80 Bzip supported: 1
+2021/03/14-01:41:28.529786 7f1cb404ca80 LZ4 supported: 1
+2021/03/14-01:41:28.529786 7f1cb404ca80 ZSTDNotFinal supported: 1
+2021/03/14-01:41:28.529790 7f1cb404ca80 ZSTD supported: 1
+2021/03/14-01:41:28.529793 7f1cb404ca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:41:28.529795 7f1cb404ca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:41:28.529887 7f1cb404ca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:41:28.529942 7f1cb404ca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:41:28.529944 7f1cb404ca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:41:28.529945 7f1cb404ca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:41:28.529945 7f1cb404ca80 Options.compaction_filter: None
+2021/03/14-01:41:28.529946 7f1cb404ca80 Options.compaction_filter_factory: None
+2021/03/14-01:41:28.529946 7f1cb404ca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:41:28.529947 7f1cb404ca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:41:28.529964 7f1cb404ca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2074520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2059c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:41:28.529970 7f1cb404ca80 Options.write_buffer_size: 134217728
+2021/03/14-01:41:28.529970 7f1cb404ca80 Options.max_write_buffer_number: 6
+2021/03/14-01:41:28.529971 7f1cb404ca80 Options.compression[0]: NoCompression
+2021/03/14-01:41:28.529972 7f1cb404ca80 Options.compression[1]: NoCompression
+2021/03/14-01:41:28.529972 7f1cb404ca80 Options.compression[2]: Snappy
+2021/03/14-01:41:28.529973 7f1cb404ca80 Options.compression[3]: Snappy
+2021/03/14-01:41:28.529973 7f1cb404ca80 Options.compression[4]: Snappy
+2021/03/14-01:41:28.529974 7f1cb404ca80 Options.compression[5]: Snappy
+2021/03/14-01:41:28.529975 7f1cb404ca80 Options.compression[6]: Snappy
+2021/03/14-01:41:28.529975 7f1cb404ca80 Options.bottommost_compression: Disabled
+2021/03/14-01:41:28.529976 7f1cb404ca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:41:28.529977 7f1cb404ca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:41:28.529977 7f1cb404ca80 Options.num_levels: 7
+2021/03/14-01:41:28.529978 7f1cb404ca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:41:28.529978 7f1cb404ca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:41:28.529979 7f1cb404ca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:41:28.529979 7f1cb404ca80 Options.compression_opts.level: -1
+2021/03/14-01:41:28.529980 7f1cb404ca80 Options.compression_opts.strategy: 0
+2021/03/14-01:41:28.529980 7f1cb404ca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:41:28.529981 7f1cb404ca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:41:28.529982 7f1cb404ca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:41:28.529982 7f1cb404ca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:41:28.529983 7f1cb404ca80 Options.target_file_size_base: 67108864
+2021/03/14-01:41:28.529983 7f1cb404ca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:41:28.529984 7f1cb404ca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:41:28.529984 7f1cb404ca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:41:28.529985 7f1cb404ca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:41:28.529987 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:41:28.529994 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:41:28.529995 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:41:28.529995 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:41:28.529996 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:41:28.529997 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:41:28.529997 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:41:28.529998 7f1cb404ca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:41:28.529998 7f1cb404ca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:41:28.529999 7f1cb404ca80 Options.arena_block_size: 16777216
+2021/03/14-01:41:28.529999 7f1cb404ca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:41:28.530000 7f1cb404ca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:41:28.530001 7f1cb404ca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:41:28.530001 7f1cb404ca80 Options.disable_auto_compactions: 0
+2021/03/14-01:41:28.530003 7f1cb404ca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:41:28.530003 7f1cb404ca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:41:28.530004 7f1cb404ca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:41:28.530005 7f1cb404ca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:41:28.530005 7f1cb404ca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:41:28.530006 7f1cb404ca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:41:28.530006 7f1cb404ca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:41:28.530007 7f1cb404ca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:41:28.530008 7f1cb404ca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:41:28.530009 7f1cb404ca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:41:28.530009 7f1cb404ca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:41:28.530010 7f1cb404ca80 Options.table_properties_collectors:
+2021/03/14-01:41:28.530010 7f1cb404ca80 Options.inplace_update_support: 0
+2021/03/14-01:41:28.530011 7f1cb404ca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:41:28.530011 7f1cb404ca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:41:28.530012 7f1cb404ca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:41:28.530013 7f1cb404ca80 Options.bloom_locality: 0
+2021/03/14-01:41:28.530013 7f1cb404ca80 Options.max_successive_merges: 0
+2021/03/14-01:41:28.530014 7f1cb404ca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:41:28.530014 7f1cb404ca80 Options.paranoid_file_checks: 0
+2021/03/14-01:41:28.530015 7f1cb404ca80 Options.force_consistency_checks: 0
+2021/03/14-01:41:28.530016 7f1cb404ca80 Options.report_bg_io_stats: 0
+2021/03/14-01:41:28.530400 7f1cb404ca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:41:28.530403 7f1cb404ca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:41:28.530542 7f1cb404ca80 EVENT_LOG_v1 {"time_micros": 1615682488530532, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:41:28.530547 7f1cb404ca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:41:29.187001 7f1cb404ca80 EVENT_LOG_v1 {"time_micros": 1615682489186998, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615701562055392 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701562055392
new file mode 100644
index 0000000..f6e51dd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701562055392
@@ -0,0 +1,186 @@
+2021/03/14-01:41:29.199516 7f1cb404ca80 RocksDB version: 5.11.3
+2021/03/14-01:41:29.199570 7f1cb404ca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-01:41:29.199571 7f1cb404ca80 Compile date Mar 13 2021
+2021/03/14-01:41:29.199574 7f1cb404ca80 DB SUMMARY
+2021/03/14-01:41:29.199713 7f1cb404ca80 CURRENT file: CURRENT
+2021/03/14-01:41:29.199714 7f1cb404ca80 IDENTITY file: IDENTITY
+2021/03/14-01:41:29.199727 7f1cb404ca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-01:41:29.199728 7f1cb404ca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-01:41:29.199729 7f1cb404ca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-01:41:29.199734 7f1cb404ca80 Options.error_if_exists: 0
+2021/03/14-01:41:29.199735 7f1cb404ca80 Options.create_if_missing: 1
+2021/03/14-01:41:29.199735 7f1cb404ca80 Options.paranoid_checks: 1
+2021/03/14-01:41:29.199736 7f1cb404ca80 Options.env: 0x7f1cb4a06080
+2021/03/14-01:41:29.199736 7f1cb404ca80 Options.info_log: 0x207cca0
+2021/03/14-01:41:29.199737 7f1cb404ca80 Options.max_file_opening_threads: 16
+2021/03/14-01:41:29.199738 7f1cb404ca80 Options.statistics: (nil)
+2021/03/14-01:41:29.199738 7f1cb404ca80 Options.use_fsync: 0
+2021/03/14-01:41:29.199739 7f1cb404ca80 Options.max_log_file_size: 0
+2021/03/14-01:41:29.199740 7f1cb404ca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-01:41:29.199740 7f1cb404ca80 Options.log_file_time_to_roll: 0
+2021/03/14-01:41:29.199741 7f1cb404ca80 Options.keep_log_file_num: 1000
+2021/03/14-01:41:29.199741 7f1cb404ca80 Options.recycle_log_file_num: 0
+2021/03/14-01:41:29.199742 7f1cb404ca80 Options.allow_fallocate: 1
+2021/03/14-01:41:29.199742 7f1cb404ca80 Options.allow_mmap_reads: 0
+2021/03/14-01:41:29.199743 7f1cb404ca80 Options.allow_mmap_writes: 0
+2021/03/14-01:41:29.199744 7f1cb404ca80 Options.use_direct_reads: 0
+2021/03/14-01:41:29.199744 7f1cb404ca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-01:41:29.199745 7f1cb404ca80 Options.create_missing_column_families: 0
+2021/03/14-01:41:29.199745 7f1cb404ca80 Options.db_log_dir:
+2021/03/14-01:41:29.199746 7f1cb404ca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-01:41:29.199746 7f1cb404ca80 Options.table_cache_numshardbits: 6
+2021/03/14-01:41:29.199747 7f1cb404ca80 Options.max_subcompactions: 1
+2021/03/14-01:41:29.199747 7f1cb404ca80 Options.max_background_flushes: -1
+2021/03/14-01:41:29.199748 7f1cb404ca80 Options.WAL_ttl_seconds: 0
+2021/03/14-01:41:29.199749 7f1cb404ca80 Options.WAL_size_limit_MB: 0
+2021/03/14-01:41:29.199749 7f1cb404ca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-01:41:29.199750 7f1cb404ca80 Options.is_fd_close_on_exec: 1
+2021/03/14-01:41:29.199750 7f1cb404ca80 Options.advise_random_on_open: 1
+2021/03/14-01:41:29.199751 7f1cb404ca80 Options.db_write_buffer_size: 0
+2021/03/14-01:41:29.199751 7f1cb404ca80 Options.write_buffer_manager: 0x2064b90
+2021/03/14-01:41:29.199752 7f1cb404ca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-01:41:29.199753 7f1cb404ca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-01:41:29.199753 7f1cb404ca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-01:41:29.199754 7f1cb404ca80 Options.use_adaptive_mutex: 0
+2021/03/14-01:41:29.199754 7f1cb404ca80 Options.rate_limiter: (nil)
+2021/03/14-01:41:29.199755 7f1cb404ca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-01:41:29.199763 7f1cb404ca80 Options.wal_recovery_mode: 2
+2021/03/14-01:41:29.199764 7f1cb404ca80 Options.enable_thread_tracking: 0
+2021/03/14-01:41:29.199764 7f1cb404ca80 Options.enable_pipelined_write: 0
+2021/03/14-01:41:29.199765 7f1cb404ca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-01:41:29.199765 7f1cb404ca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-01:41:29.199766 7f1cb404ca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-01:41:29.199766 7f1cb404ca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-01:41:29.199767 7f1cb404ca80 Options.row_cache: None
+2021/03/14-01:41:29.199768 7f1cb404ca80 Options.wal_filter: None
+2021/03/14-01:41:29.199768 7f1cb404ca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-01:41:29.199769 7f1cb404ca80 Options.allow_ingest_behind: 0
+2021/03/14-01:41:29.199769 7f1cb404ca80 Options.preserve_deletes: 0
+2021/03/14-01:41:29.199770 7f1cb404ca80 Options.two_write_queues: 0
+2021/03/14-01:41:29.199770 7f1cb404ca80 Options.manual_wal_flush: 0
+2021/03/14-01:41:29.199771 7f1cb404ca80 Options.max_background_jobs: 16
+2021/03/14-01:41:29.199772 7f1cb404ca80 Options.max_background_compactions: -1
+2021/03/14-01:41:29.199773 7f1cb404ca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-01:41:29.199773 7f1cb404ca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-01:41:29.199774 7f1cb404ca80 Options.delayed_write_rate : 16777216
+2021/03/14-01:41:29.199774 7f1cb404ca80 Options.max_total_wal_size: 0
+2021/03/14-01:41:29.199775 7f1cb404ca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-01:41:29.199775 7f1cb404ca80 Options.stats_dump_period_sec: 600
+2021/03/14-01:41:29.199776 7f1cb404ca80 Options.max_open_files: -1
+2021/03/14-01:41:29.199777 7f1cb404ca80 Options.bytes_per_sync: 0
+2021/03/14-01:41:29.199777 7f1cb404ca80 Options.wal_bytes_per_sync: 0
+2021/03/14-01:41:29.199778 7f1cb404ca80 Options.compaction_readahead_size: 0
+2021/03/14-01:41:29.199778 7f1cb404ca80 Compression algorithms supported:
+2021/03/14-01:41:29.199779 7f1cb404ca80 Snappy supported: 1
+2021/03/14-01:41:29.199779 7f1cb404ca80 Zlib supported: 1
+2021/03/14-01:41:29.199780 7f1cb404ca80 Bzip supported: 1
+2021/03/14-01:41:29.199781 7f1cb404ca80 LZ4 supported: 1
+2021/03/14-01:41:29.199781 7f1cb404ca80 ZSTDNotFinal supported: 1
+2021/03/14-01:41:29.199785 7f1cb404ca80 ZSTD supported: 1
+2021/03/14-01:41:29.199788 7f1cb404ca80 Fast CRC32 supported: Supported on x86
+2021/03/14-01:41:29.199789 7f1cb404ca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-01:41:29.199883 7f1cb404ca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-01:41:29.199937 7f1cb404ca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-01:41:29.199939 7f1cb404ca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-01:41:29.199940 7f1cb404ca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-01:41:29.199940 7f1cb404ca80 Options.compaction_filter: None
+2021/03/14-01:41:29.199941 7f1cb404ca80 Options.compaction_filter_factory: None
+2021/03/14-01:41:29.199942 7f1cb404ca80 Options.memtable_factory: SkipListFactory
+2021/03/14-01:41:29.199942 7f1cb404ca80 Options.table_factory: BlockBasedTable
+2021/03/14-01:41:29.199959 7f1cb404ca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2074520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2059c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-01:41:29.199964 7f1cb404ca80 Options.write_buffer_size: 134217728
+2021/03/14-01:41:29.199965 7f1cb404ca80 Options.max_write_buffer_number: 6
+2021/03/14-01:41:29.199965 7f1cb404ca80 Options.compression[0]: NoCompression
+2021/03/14-01:41:29.199966 7f1cb404ca80 Options.compression[1]: NoCompression
+2021/03/14-01:41:29.199967 7f1cb404ca80 Options.compression[2]: Snappy
+2021/03/14-01:41:29.199967 7f1cb404ca80 Options.compression[3]: Snappy
+2021/03/14-01:41:29.199968 7f1cb404ca80 Options.compression[4]: Snappy
+2021/03/14-01:41:29.199968 7f1cb404ca80 Options.compression[5]: Snappy
+2021/03/14-01:41:29.199969 7f1cb404ca80 Options.compression[6]: Snappy
+2021/03/14-01:41:29.199970 7f1cb404ca80 Options.bottommost_compression: Disabled
+2021/03/14-01:41:29.199971 7f1cb404ca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-01:41:29.199971 7f1cb404ca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-01:41:29.199972 7f1cb404ca80 Options.num_levels: 7
+2021/03/14-01:41:29.199972 7f1cb404ca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-01:41:29.199973 7f1cb404ca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-01:41:29.199974 7f1cb404ca80 Options.compression_opts.window_bits: -14
+2021/03/14-01:41:29.199974 7f1cb404ca80 Options.compression_opts.level: -1
+2021/03/14-01:41:29.199975 7f1cb404ca80 Options.compression_opts.strategy: 0
+2021/03/14-01:41:29.199975 7f1cb404ca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-01:41:29.199976 7f1cb404ca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-01:41:29.199976 7f1cb404ca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-01:41:29.199977 7f1cb404ca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-01:41:29.199977 7f1cb404ca80 Options.target_file_size_base: 67108864
+2021/03/14-01:41:29.199978 7f1cb404ca80 Options.target_file_size_multiplier: 1
+2021/03/14-01:41:29.199979 7f1cb404ca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-01:41:29.199979 7f1cb404ca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-01:41:29.199980 7f1cb404ca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-01:41:29.199981 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-01:41:29.199989 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-01:41:29.199990 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-01:41:29.199990 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-01:41:29.199991 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-01:41:29.199991 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-01:41:29.199992 7f1cb404ca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-01:41:29.199993 7f1cb404ca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-01:41:29.199993 7f1cb404ca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-01:41:29.199994 7f1cb404ca80 Options.arena_block_size: 16777216
+2021/03/14-01:41:29.199994 7f1cb404ca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-01:41:29.199995 7f1cb404ca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-01:41:29.199996 7f1cb404ca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-01:41:29.199996 7f1cb404ca80 Options.disable_auto_compactions: 0
+2021/03/14-01:41:29.199998 7f1cb404ca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-01:41:29.199998 7f1cb404ca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-01:41:29.199999 7f1cb404ca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-01:41:29.200000 7f1cb404ca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-01:41:29.200000 7f1cb404ca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-01:41:29.200001 7f1cb404ca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-01:41:29.200001 7f1cb404ca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-01:41:29.200002 7f1cb404ca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-01:41:29.200003 7f1cb404ca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-01:41:29.200004 7f1cb404ca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-01:41:29.200004 7f1cb404ca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-01:41:29.200005 7f1cb404ca80 Options.table_properties_collectors:
+2021/03/14-01:41:29.200005 7f1cb404ca80 Options.inplace_update_support: 0
+2021/03/14-01:41:29.200006 7f1cb404ca80 Options.inplace_update_num_locks: 10000
+2021/03/14-01:41:29.200007 7f1cb404ca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-01:41:29.200007 7f1cb404ca80 Options.memtable_huge_page_size: 0
+2021/03/14-01:41:29.200008 7f1cb404ca80 Options.bloom_locality: 0
+2021/03/14-01:41:29.200008 7f1cb404ca80 Options.max_successive_merges: 0
+2021/03/14-01:41:29.200009 7f1cb404ca80 Options.optimize_filters_for_hits: 0
+2021/03/14-01:41:29.200009 7f1cb404ca80 Options.paranoid_file_checks: 0
+2021/03/14-01:41:29.200010 7f1cb404ca80 Options.force_consistency_checks: 0
+2021/03/14-01:41:29.200011 7f1cb404ca80 Options.report_bg_io_stats: 0
+2021/03/14-01:41:29.200376 7f1cb404ca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-01:41:29.200379 7f1cb404ca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-01:41:29.200521 7f1cb404ca80 EVENT_LOG_v1 {"time_micros": 1615682489200511, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-01:41:29.200526 7f1cb404ca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-01:41:29.854040 7f1cb404ca80 EVENT_LOG_v1 {"time_micros": 1615682489854036, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615701562744510 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701562744510
new file mode 100644
index 0000000..0040a33
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701562744510
@@ -0,0 +1,186 @@
+2021/03/14-06:59:22.056069 7f74d7618a80 RocksDB version: 5.11.3
+2021/03/14-06:59:22.056131 7f74d7618a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-06:59:22.056133 7f74d7618a80 Compile date Mar 13 2021
+2021/03/14-06:59:22.056138 7f74d7618a80 DB SUMMARY
+2021/03/14-06:59:22.056302 7f74d7618a80 CURRENT file: CURRENT
+2021/03/14-06:59:22.056303 7f74d7618a80 IDENTITY file: IDENTITY
+2021/03/14-06:59:22.056318 7f74d7618a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-06:59:22.056319 7f74d7618a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-06:59:22.056320 7f74d7618a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-06:59:22.056325 7f74d7618a80 Options.error_if_exists: 0
+2021/03/14-06:59:22.056326 7f74d7618a80 Options.create_if_missing: 1
+2021/03/14-06:59:22.056327 7f74d7618a80 Options.paranoid_checks: 1
+2021/03/14-06:59:22.056327 7f74d7618a80 Options.env: 0x7f74d7fd2080
+2021/03/14-06:59:22.056328 7f74d7618a80 Options.info_log: 0x28f8ca0
+2021/03/14-06:59:22.056329 7f74d7618a80 Options.max_file_opening_threads: 16
+2021/03/14-06:59:22.056329 7f74d7618a80 Options.statistics: (nil)
+2021/03/14-06:59:22.056330 7f74d7618a80 Options.use_fsync: 0
+2021/03/14-06:59:22.056331 7f74d7618a80 Options.max_log_file_size: 0
+2021/03/14-06:59:22.056331 7f74d7618a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-06:59:22.056332 7f74d7618a80 Options.log_file_time_to_roll: 0
+2021/03/14-06:59:22.056333 7f74d7618a80 Options.keep_log_file_num: 1000
+2021/03/14-06:59:22.056333 7f74d7618a80 Options.recycle_log_file_num: 0
+2021/03/14-06:59:22.056334 7f74d7618a80 Options.allow_fallocate: 1
+2021/03/14-06:59:22.056335 7f74d7618a80 Options.allow_mmap_reads: 0
+2021/03/14-06:59:22.056335 7f74d7618a80 Options.allow_mmap_writes: 0
+2021/03/14-06:59:22.056336 7f74d7618a80 Options.use_direct_reads: 0
+2021/03/14-06:59:22.056337 7f74d7618a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-06:59:22.056337 7f74d7618a80 Options.create_missing_column_families: 0
+2021/03/14-06:59:22.056338 7f74d7618a80 Options.db_log_dir:
+2021/03/14-06:59:22.056338 7f74d7618a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-06:59:22.056339 7f74d7618a80 Options.table_cache_numshardbits: 6
+2021/03/14-06:59:22.056340 7f74d7618a80 Options.max_subcompactions: 1
+2021/03/14-06:59:22.056340 7f74d7618a80 Options.max_background_flushes: -1
+2021/03/14-06:59:22.056341 7f74d7618a80 Options.WAL_ttl_seconds: 0
+2021/03/14-06:59:22.056342 7f74d7618a80 Options.WAL_size_limit_MB: 0
+2021/03/14-06:59:22.056342 7f74d7618a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-06:59:22.056343 7f74d7618a80 Options.is_fd_close_on_exec: 1
+2021/03/14-06:59:22.056344 7f74d7618a80 Options.advise_random_on_open: 1
+2021/03/14-06:59:22.056344 7f74d7618a80 Options.db_write_buffer_size: 0
+2021/03/14-06:59:22.056345 7f74d7618a80 Options.write_buffer_manager: 0x28e0b90
+2021/03/14-06:59:22.056345 7f74d7618a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-06:59:22.056346 7f74d7618a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-06:59:22.056347 7f74d7618a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-06:59:22.056347 7f74d7618a80 Options.use_adaptive_mutex: 0
+2021/03/14-06:59:22.056348 7f74d7618a80 Options.rate_limiter: (nil)
+2021/03/14-06:59:22.056349 7f74d7618a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-06:59:22.056359 7f74d7618a80 Options.wal_recovery_mode: 2
+2021/03/14-06:59:22.056359 7f74d7618a80 Options.enable_thread_tracking: 0
+2021/03/14-06:59:22.056360 7f74d7618a80 Options.enable_pipelined_write: 0
+2021/03/14-06:59:22.056361 7f74d7618a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-06:59:22.056361 7f74d7618a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-06:59:22.056362 7f74d7618a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-06:59:22.056362 7f74d7618a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-06:59:22.056363 7f74d7618a80 Options.row_cache: None
+2021/03/14-06:59:22.056364 7f74d7618a80 Options.wal_filter: None
+2021/03/14-06:59:22.056364 7f74d7618a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-06:59:22.056365 7f74d7618a80 Options.allow_ingest_behind: 0
+2021/03/14-06:59:22.056366 7f74d7618a80 Options.preserve_deletes: 0
+2021/03/14-06:59:22.056366 7f74d7618a80 Options.two_write_queues: 0
+2021/03/14-06:59:22.056367 7f74d7618a80 Options.manual_wal_flush: 0
+2021/03/14-06:59:22.056368 7f74d7618a80 Options.max_background_jobs: 16
+2021/03/14-06:59:22.056369 7f74d7618a80 Options.max_background_compactions: -1
+2021/03/14-06:59:22.056369 7f74d7618a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-06:59:22.056370 7f74d7618a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-06:59:22.056371 7f74d7618a80 Options.delayed_write_rate : 16777216
+2021/03/14-06:59:22.056371 7f74d7618a80 Options.max_total_wal_size: 0
+2021/03/14-06:59:22.056372 7f74d7618a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-06:59:22.056373 7f74d7618a80 Options.stats_dump_period_sec: 600
+2021/03/14-06:59:22.056373 7f74d7618a80 Options.max_open_files: -1
+2021/03/14-06:59:22.056374 7f74d7618a80 Options.bytes_per_sync: 0
+2021/03/14-06:59:22.056374 7f74d7618a80 Options.wal_bytes_per_sync: 0
+2021/03/14-06:59:22.056375 7f74d7618a80 Options.compaction_readahead_size: 0
+2021/03/14-06:59:22.056376 7f74d7618a80 Compression algorithms supported:
+2021/03/14-06:59:22.056376 7f74d7618a80 Snappy supported: 1
+2021/03/14-06:59:22.056377 7f74d7618a80 Zlib supported: 1
+2021/03/14-06:59:22.056378 7f74d7618a80 Bzip supported: 1
+2021/03/14-06:59:22.056378 7f74d7618a80 LZ4 supported: 1
+2021/03/14-06:59:22.056379 7f74d7618a80 ZSTDNotFinal supported: 1
+2021/03/14-06:59:22.056384 7f74d7618a80 ZSTD supported: 1
+2021/03/14-06:59:22.056387 7f74d7618a80 Fast CRC32 supported: Supported on x86
+2021/03/14-06:59:22.056389 7f74d7618a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-06:59:22.056505 7f74d7618a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-06:59:22.056563 7f74d7618a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-06:59:22.056565 7f74d7618a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-06:59:22.056566 7f74d7618a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-06:59:22.056567 7f74d7618a80 Options.compaction_filter: None
+2021/03/14-06:59:22.056568 7f74d7618a80 Options.compaction_filter_factory: None
+2021/03/14-06:59:22.056568 7f74d7618a80 Options.memtable_factory: SkipListFactory
+2021/03/14-06:59:22.056569 7f74d7618a80 Options.table_factory: BlockBasedTable
+2021/03/14-06:59:22.056587 7f74d7618a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x28f0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x28d5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-06:59:22.056593 7f74d7618a80 Options.write_buffer_size: 134217728
+2021/03/14-06:59:22.056594 7f74d7618a80 Options.max_write_buffer_number: 6
+2021/03/14-06:59:22.056595 7f74d7618a80 Options.compression[0]: NoCompression
+2021/03/14-06:59:22.056596 7f74d7618a80 Options.compression[1]: NoCompression
+2021/03/14-06:59:22.056596 7f74d7618a80 Options.compression[2]: Snappy
+2021/03/14-06:59:22.056597 7f74d7618a80 Options.compression[3]: Snappy
+2021/03/14-06:59:22.056598 7f74d7618a80 Options.compression[4]: Snappy
+2021/03/14-06:59:22.056598 7f74d7618a80 Options.compression[5]: Snappy
+2021/03/14-06:59:22.056599 7f74d7618a80 Options.compression[6]: Snappy
+2021/03/14-06:59:22.056599 7f74d7618a80 Options.bottommost_compression: Disabled
+2021/03/14-06:59:22.056600 7f74d7618a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-06:59:22.056601 7f74d7618a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-06:59:22.056602 7f74d7618a80 Options.num_levels: 7
+2021/03/14-06:59:22.056602 7f74d7618a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-06:59:22.056603 7f74d7618a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-06:59:22.056604 7f74d7618a80 Options.compression_opts.window_bits: -14
+2021/03/14-06:59:22.056604 7f74d7618a80 Options.compression_opts.level: -1
+2021/03/14-06:59:22.056605 7f74d7618a80 Options.compression_opts.strategy: 0
+2021/03/14-06:59:22.056606 7f74d7618a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-06:59:22.056606 7f74d7618a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-06:59:22.056607 7f74d7618a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-06:59:22.056607 7f74d7618a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-06:59:22.056608 7f74d7618a80 Options.target_file_size_base: 67108864
+2021/03/14-06:59:22.056609 7f74d7618a80 Options.target_file_size_multiplier: 1
+2021/03/14-06:59:22.056609 7f74d7618a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-06:59:22.056610 7f74d7618a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-06:59:22.056610 7f74d7618a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-06:59:22.056612 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-06:59:22.056621 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-06:59:22.056622 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-06:59:22.056622 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-06:59:22.056623 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-06:59:22.056623 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-06:59:22.056624 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-06:59:22.056625 7f74d7618a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-06:59:22.056625 7f74d7618a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-06:59:22.056626 7f74d7618a80 Options.arena_block_size: 16777216
+2021/03/14-06:59:22.056627 7f74d7618a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-06:59:22.056627 7f74d7618a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-06:59:22.056628 7f74d7618a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-06:59:22.056629 7f74d7618a80 Options.disable_auto_compactions: 0
+2021/03/14-06:59:22.056630 7f74d7618a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-06:59:22.056631 7f74d7618a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-06:59:22.056632 7f74d7618a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-06:59:22.056633 7f74d7618a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-06:59:22.056633 7f74d7618a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-06:59:22.056634 7f74d7618a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-06:59:22.056634 7f74d7618a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-06:59:22.056636 7f74d7618a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-06:59:22.056636 7f74d7618a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-06:59:22.056637 7f74d7618a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-06:59:22.056638 7f74d7618a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-06:59:22.056638 7f74d7618a80 Options.table_properties_collectors:
+2021/03/14-06:59:22.056639 7f74d7618a80 Options.inplace_update_support: 0
+2021/03/14-06:59:22.056639 7f74d7618a80 Options.inplace_update_num_locks: 10000
+2021/03/14-06:59:22.056640 7f74d7618a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-06:59:22.056641 7f74d7618a80 Options.memtable_huge_page_size: 0
+2021/03/14-06:59:22.056642 7f74d7618a80 Options.bloom_locality: 0
+2021/03/14-06:59:22.056642 7f74d7618a80 Options.max_successive_merges: 0
+2021/03/14-06:59:22.056643 7f74d7618a80 Options.optimize_filters_for_hits: 0
+2021/03/14-06:59:22.056643 7f74d7618a80 Options.paranoid_file_checks: 0
+2021/03/14-06:59:22.056644 7f74d7618a80 Options.force_consistency_checks: 0
+2021/03/14-06:59:22.056645 7f74d7618a80 Options.report_bg_io_stats: 0
+2021/03/14-06:59:22.057080 7f74d7618a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-06:59:22.057083 7f74d7618a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-06:59:22.057266 7f74d7618a80 EVENT_LOG_v1 {"time_micros": 1615701562057253, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-06:59:22.057277 7f74d7618a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-06:59:22.721847 7f74d7618a80 EVENT_LOG_v1 {"time_micros": 1615701562721844, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615701563415910 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701563415910
new file mode 100644
index 0000000..beb1e83
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701563415910
@@ -0,0 +1,186 @@
+2021/03/14-06:59:22.745036 7f74d7618a80 RocksDB version: 5.11.3
+2021/03/14-06:59:22.745107 7f74d7618a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-06:59:22.745109 7f74d7618a80 Compile date Mar 13 2021
+2021/03/14-06:59:22.745114 7f74d7618a80 DB SUMMARY
+2021/03/14-06:59:22.745324 7f74d7618a80 CURRENT file: CURRENT
+2021/03/14-06:59:22.745326 7f74d7618a80 IDENTITY file: IDENTITY
+2021/03/14-06:59:22.745342 7f74d7618a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-06:59:22.745343 7f74d7618a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-06:59:22.745344 7f74d7618a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-06:59:22.745350 7f74d7618a80 Options.error_if_exists: 0
+2021/03/14-06:59:22.745351 7f74d7618a80 Options.create_if_missing: 1
+2021/03/14-06:59:22.745352 7f74d7618a80 Options.paranoid_checks: 1
+2021/03/14-06:59:22.745352 7f74d7618a80 Options.env: 0x7f74d7fd2080
+2021/03/14-06:59:22.745353 7f74d7618a80 Options.info_log: 0x28f8ca0
+2021/03/14-06:59:22.745354 7f74d7618a80 Options.max_file_opening_threads: 16
+2021/03/14-06:59:22.745354 7f74d7618a80 Options.statistics: (nil)
+2021/03/14-06:59:22.745355 7f74d7618a80 Options.use_fsync: 0
+2021/03/14-06:59:22.745356 7f74d7618a80 Options.max_log_file_size: 0
+2021/03/14-06:59:22.745357 7f74d7618a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-06:59:22.745357 7f74d7618a80 Options.log_file_time_to_roll: 0
+2021/03/14-06:59:22.745358 7f74d7618a80 Options.keep_log_file_num: 1000
+2021/03/14-06:59:22.745359 7f74d7618a80 Options.recycle_log_file_num: 0
+2021/03/14-06:59:22.745359 7f74d7618a80 Options.allow_fallocate: 1
+2021/03/14-06:59:22.745360 7f74d7618a80 Options.allow_mmap_reads: 0
+2021/03/14-06:59:22.745361 7f74d7618a80 Options.allow_mmap_writes: 0
+2021/03/14-06:59:22.745361 7f74d7618a80 Options.use_direct_reads: 0
+2021/03/14-06:59:22.745362 7f74d7618a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-06:59:22.745363 7f74d7618a80 Options.create_missing_column_families: 0
+2021/03/14-06:59:22.745363 7f74d7618a80 Options.db_log_dir:
+2021/03/14-06:59:22.745364 7f74d7618a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-06:59:22.745365 7f74d7618a80 Options.table_cache_numshardbits: 6
+2021/03/14-06:59:22.745365 7f74d7618a80 Options.max_subcompactions: 1
+2021/03/14-06:59:22.745366 7f74d7618a80 Options.max_background_flushes: -1
+2021/03/14-06:59:22.745367 7f74d7618a80 Options.WAL_ttl_seconds: 0
+2021/03/14-06:59:22.745367 7f74d7618a80 Options.WAL_size_limit_MB: 0
+2021/03/14-06:59:22.745368 7f74d7618a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-06:59:22.745369 7f74d7618a80 Options.is_fd_close_on_exec: 1
+2021/03/14-06:59:22.745369 7f74d7618a80 Options.advise_random_on_open: 1
+2021/03/14-06:59:22.745370 7f74d7618a80 Options.db_write_buffer_size: 0
+2021/03/14-06:59:22.745371 7f74d7618a80 Options.write_buffer_manager: 0x28e0b90
+2021/03/14-06:59:22.745371 7f74d7618a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-06:59:22.745372 7f74d7618a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-06:59:22.745372 7f74d7618a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-06:59:22.745373 7f74d7618a80 Options.use_adaptive_mutex: 0
+2021/03/14-06:59:22.745374 7f74d7618a80 Options.rate_limiter: (nil)
+2021/03/14-06:59:22.745375 7f74d7618a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-06:59:22.745386 7f74d7618a80 Options.wal_recovery_mode: 2
+2021/03/14-06:59:22.745387 7f74d7618a80 Options.enable_thread_tracking: 0
+2021/03/14-06:59:22.745388 7f74d7618a80 Options.enable_pipelined_write: 0
+2021/03/14-06:59:22.745388 7f74d7618a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-06:59:22.745389 7f74d7618a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-06:59:22.745390 7f74d7618a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-06:59:22.745390 7f74d7618a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-06:59:22.745391 7f74d7618a80 Options.row_cache: None
+2021/03/14-06:59:22.745392 7f74d7618a80 Options.wal_filter: None
+2021/03/14-06:59:22.745392 7f74d7618a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-06:59:22.745393 7f74d7618a80 Options.allow_ingest_behind: 0
+2021/03/14-06:59:22.745394 7f74d7618a80 Options.preserve_deletes: 0
+2021/03/14-06:59:22.745394 7f74d7618a80 Options.two_write_queues: 0
+2021/03/14-06:59:22.745395 7f74d7618a80 Options.manual_wal_flush: 0
+2021/03/14-06:59:22.745397 7f74d7618a80 Options.max_background_jobs: 16
+2021/03/14-06:59:22.745397 7f74d7618a80 Options.max_background_compactions: -1
+2021/03/14-06:59:22.745398 7f74d7618a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-06:59:22.745398 7f74d7618a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-06:59:22.745399 7f74d7618a80 Options.delayed_write_rate : 16777216
+2021/03/14-06:59:22.745400 7f74d7618a80 Options.max_total_wal_size: 0
+2021/03/14-06:59:22.745401 7f74d7618a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-06:59:22.745401 7f74d7618a80 Options.stats_dump_period_sec: 600
+2021/03/14-06:59:22.745402 7f74d7618a80 Options.max_open_files: -1
+2021/03/14-06:59:22.745403 7f74d7618a80 Options.bytes_per_sync: 0
+2021/03/14-06:59:22.745403 7f74d7618a80 Options.wal_bytes_per_sync: 0
+2021/03/14-06:59:22.745404 7f74d7618a80 Options.compaction_readahead_size: 0
+2021/03/14-06:59:22.745404 7f74d7618a80 Compression algorithms supported:
+2021/03/14-06:59:22.745405 7f74d7618a80 Snappy supported: 1
+2021/03/14-06:59:22.745406 7f74d7618a80 Zlib supported: 1
+2021/03/14-06:59:22.745406 7f74d7618a80 Bzip supported: 1
+2021/03/14-06:59:22.745407 7f74d7618a80 LZ4 supported: 1
+2021/03/14-06:59:22.745408 7f74d7618a80 ZSTDNotFinal supported: 1
+2021/03/14-06:59:22.745413 7f74d7618a80 ZSTD supported: 1
+2021/03/14-06:59:22.745417 7f74d7618a80 Fast CRC32 supported: Supported on x86
+2021/03/14-06:59:22.745418 7f74d7618a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-06:59:22.745539 7f74d7618a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-06:59:22.745606 7f74d7618a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-06:59:22.745608 7f74d7618a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-06:59:22.745609 7f74d7618a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-06:59:22.745610 7f74d7618a80 Options.compaction_filter: None
+2021/03/14-06:59:22.745610 7f74d7618a80 Options.compaction_filter_factory: None
+2021/03/14-06:59:22.745611 7f74d7618a80 Options.memtable_factory: SkipListFactory
+2021/03/14-06:59:22.745612 7f74d7618a80 Options.table_factory: BlockBasedTable
+2021/03/14-06:59:22.745633 7f74d7618a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x28f0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x28d5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-06:59:22.745641 7f74d7618a80 Options.write_buffer_size: 134217728
+2021/03/14-06:59:22.745642 7f74d7618a80 Options.max_write_buffer_number: 6
+2021/03/14-06:59:22.745643 7f74d7618a80 Options.compression[0]: NoCompression
+2021/03/14-06:59:22.745643 7f74d7618a80 Options.compression[1]: NoCompression
+2021/03/14-06:59:22.745644 7f74d7618a80 Options.compression[2]: Snappy
+2021/03/14-06:59:22.745645 7f74d7618a80 Options.compression[3]: Snappy
+2021/03/14-06:59:22.745645 7f74d7618a80 Options.compression[4]: Snappy
+2021/03/14-06:59:22.745646 7f74d7618a80 Options.compression[5]: Snappy
+2021/03/14-06:59:22.745647 7f74d7618a80 Options.compression[6]: Snappy
+2021/03/14-06:59:22.745647 7f74d7618a80 Options.bottommost_compression: Disabled
+2021/03/14-06:59:22.745648 7f74d7618a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-06:59:22.745649 7f74d7618a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-06:59:22.745650 7f74d7618a80 Options.num_levels: 7
+2021/03/14-06:59:22.745650 7f74d7618a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-06:59:22.745651 7f74d7618a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-06:59:22.745652 7f74d7618a80 Options.compression_opts.window_bits: -14
+2021/03/14-06:59:22.745652 7f74d7618a80 Options.compression_opts.level: -1
+2021/03/14-06:59:22.745653 7f74d7618a80 Options.compression_opts.strategy: 0
+2021/03/14-06:59:22.745654 7f74d7618a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-06:59:22.745654 7f74d7618a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-06:59:22.745655 7f74d7618a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-06:59:22.745656 7f74d7618a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-06:59:22.745656 7f74d7618a80 Options.target_file_size_base: 67108864
+2021/03/14-06:59:22.745657 7f74d7618a80 Options.target_file_size_multiplier: 1
+2021/03/14-06:59:22.745658 7f74d7618a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-06:59:22.745658 7f74d7618a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-06:59:22.745659 7f74d7618a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-06:59:22.745661 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-06:59:22.745670 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-06:59:22.745671 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-06:59:22.745672 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-06:59:22.745672 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-06:59:22.745673 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-06:59:22.745674 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-06:59:22.745674 7f74d7618a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-06:59:22.745675 7f74d7618a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-06:59:22.745676 7f74d7618a80 Options.arena_block_size: 16777216
+2021/03/14-06:59:22.745676 7f74d7618a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-06:59:22.745677 7f74d7618a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-06:59:22.745678 7f74d7618a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-06:59:22.745678 7f74d7618a80 Options.disable_auto_compactions: 0
+2021/03/14-06:59:22.745681 7f74d7618a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-06:59:22.745682 7f74d7618a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-06:59:22.745682 7f74d7618a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-06:59:22.745683 7f74d7618a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-06:59:22.745684 7f74d7618a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-06:59:22.745684 7f74d7618a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-06:59:22.745685 7f74d7618a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-06:59:22.745686 7f74d7618a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-06:59:22.745687 7f74d7618a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-06:59:22.745688 7f74d7618a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-06:59:22.745688 7f74d7618a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-06:59:22.745689 7f74d7618a80 Options.table_properties_collectors:
+2021/03/14-06:59:22.745690 7f74d7618a80 Options.inplace_update_support: 0
+2021/03/14-06:59:22.745690 7f74d7618a80 Options.inplace_update_num_locks: 10000
+2021/03/14-06:59:22.745691 7f74d7618a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-06:59:22.745692 7f74d7618a80 Options.memtable_huge_page_size: 0
+2021/03/14-06:59:22.745692 7f74d7618a80 Options.bloom_locality: 0
+2021/03/14-06:59:22.745693 7f74d7618a80 Options.max_successive_merges: 0
+2021/03/14-06:59:22.745694 7f74d7618a80 Options.optimize_filters_for_hits: 0
+2021/03/14-06:59:22.745694 7f74d7618a80 Options.paranoid_file_checks: 0
+2021/03/14-06:59:22.745695 7f74d7618a80 Options.force_consistency_checks: 0
+2021/03/14-06:59:22.745696 7f74d7618a80 Options.report_bg_io_stats: 0
+2021/03/14-06:59:22.746179 7f74d7618a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-06:59:22.746182 7f74d7618a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-06:59:22.746379 7f74d7618a80 EVENT_LOG_v1 {"time_micros": 1615701562746363, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-06:59:22.746387 7f74d7618a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-06:59:23.404690 7f74d7618a80 EVENT_LOG_v1 {"time_micros": 1615701563404687, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615701564090447 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701564090447
new file mode 100644
index 0000000..873a0a6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701564090447
@@ -0,0 +1,186 @@
+2021/03/14-06:59:23.416312 7f74d7618a80 RocksDB version: 5.11.3
+2021/03/14-06:59:23.416365 7f74d7618a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-06:59:23.416367 7f74d7618a80 Compile date Mar 13 2021
+2021/03/14-06:59:23.416371 7f74d7618a80 DB SUMMARY
+2021/03/14-06:59:23.416512 7f74d7618a80 CURRENT file: CURRENT
+2021/03/14-06:59:23.416514 7f74d7618a80 IDENTITY file: IDENTITY
+2021/03/14-06:59:23.416527 7f74d7618a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-06:59:23.416528 7f74d7618a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-06:59:23.416529 7f74d7618a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-06:59:23.416534 7f74d7618a80 Options.error_if_exists: 0
+2021/03/14-06:59:23.416535 7f74d7618a80 Options.create_if_missing: 1
+2021/03/14-06:59:23.416535 7f74d7618a80 Options.paranoid_checks: 1
+2021/03/14-06:59:23.416536 7f74d7618a80 Options.env: 0x7f74d7fd2080
+2021/03/14-06:59:23.416536 7f74d7618a80 Options.info_log: 0x28f8ca0
+2021/03/14-06:59:23.416537 7f74d7618a80 Options.max_file_opening_threads: 16
+2021/03/14-06:59:23.416537 7f74d7618a80 Options.statistics: (nil)
+2021/03/14-06:59:23.416538 7f74d7618a80 Options.use_fsync: 0
+2021/03/14-06:59:23.416539 7f74d7618a80 Options.max_log_file_size: 0
+2021/03/14-06:59:23.416539 7f74d7618a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-06:59:23.416540 7f74d7618a80 Options.log_file_time_to_roll: 0
+2021/03/14-06:59:23.416541 7f74d7618a80 Options.keep_log_file_num: 1000
+2021/03/14-06:59:23.416541 7f74d7618a80 Options.recycle_log_file_num: 0
+2021/03/14-06:59:23.416542 7f74d7618a80 Options.allow_fallocate: 1
+2021/03/14-06:59:23.416542 7f74d7618a80 Options.allow_mmap_reads: 0
+2021/03/14-06:59:23.416543 7f74d7618a80 Options.allow_mmap_writes: 0
+2021/03/14-06:59:23.416543 7f74d7618a80 Options.use_direct_reads: 0
+2021/03/14-06:59:23.416544 7f74d7618a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-06:59:23.416544 7f74d7618a80 Options.create_missing_column_families: 0
+2021/03/14-06:59:23.416545 7f74d7618a80 Options.db_log_dir:
+2021/03/14-06:59:23.416546 7f74d7618a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-06:59:23.416546 7f74d7618a80 Options.table_cache_numshardbits: 6
+2021/03/14-06:59:23.416547 7f74d7618a80 Options.max_subcompactions: 1
+2021/03/14-06:59:23.416547 7f74d7618a80 Options.max_background_flushes: -1
+2021/03/14-06:59:23.416548 7f74d7618a80 Options.WAL_ttl_seconds: 0
+2021/03/14-06:59:23.416549 7f74d7618a80 Options.WAL_size_limit_MB: 0
+2021/03/14-06:59:23.416549 7f74d7618a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-06:59:23.416550 7f74d7618a80 Options.is_fd_close_on_exec: 1
+2021/03/14-06:59:23.416550 7f74d7618a80 Options.advise_random_on_open: 1
+2021/03/14-06:59:23.416551 7f74d7618a80 Options.db_write_buffer_size: 0
+2021/03/14-06:59:23.416551 7f74d7618a80 Options.write_buffer_manager: 0x28e0b90
+2021/03/14-06:59:23.416552 7f74d7618a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-06:59:23.416552 7f74d7618a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-06:59:23.416553 7f74d7618a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-06:59:23.416553 7f74d7618a80 Options.use_adaptive_mutex: 0
+2021/03/14-06:59:23.416554 7f74d7618a80 Options.rate_limiter: (nil)
+2021/03/14-06:59:23.416555 7f74d7618a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-06:59:23.416563 7f74d7618a80 Options.wal_recovery_mode: 2
+2021/03/14-06:59:23.416564 7f74d7618a80 Options.enable_thread_tracking: 0
+2021/03/14-06:59:23.416564 7f74d7618a80 Options.enable_pipelined_write: 0
+2021/03/14-06:59:23.416565 7f74d7618a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-06:59:23.416565 7f74d7618a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-06:59:23.416566 7f74d7618a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-06:59:23.416566 7f74d7618a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-06:59:23.416567 7f74d7618a80 Options.row_cache: None
+2021/03/14-06:59:23.416568 7f74d7618a80 Options.wal_filter: None
+2021/03/14-06:59:23.416568 7f74d7618a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-06:59:23.416569 7f74d7618a80 Options.allow_ingest_behind: 0
+2021/03/14-06:59:23.416569 7f74d7618a80 Options.preserve_deletes: 0
+2021/03/14-06:59:23.416570 7f74d7618a80 Options.two_write_queues: 0
+2021/03/14-06:59:23.416571 7f74d7618a80 Options.manual_wal_flush: 0
+2021/03/14-06:59:23.416572 7f74d7618a80 Options.max_background_jobs: 16
+2021/03/14-06:59:23.416572 7f74d7618a80 Options.max_background_compactions: -1
+2021/03/14-06:59:23.416573 7f74d7618a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-06:59:23.416573 7f74d7618a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-06:59:23.416574 7f74d7618a80 Options.delayed_write_rate : 16777216
+2021/03/14-06:59:23.416574 7f74d7618a80 Options.max_total_wal_size: 0
+2021/03/14-06:59:23.416575 7f74d7618a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-06:59:23.416576 7f74d7618a80 Options.stats_dump_period_sec: 600
+2021/03/14-06:59:23.416576 7f74d7618a80 Options.max_open_files: -1
+2021/03/14-06:59:23.416577 7f74d7618a80 Options.bytes_per_sync: 0
+2021/03/14-06:59:23.416577 7f74d7618a80 Options.wal_bytes_per_sync: 0
+2021/03/14-06:59:23.416578 7f74d7618a80 Options.compaction_readahead_size: 0
+2021/03/14-06:59:23.416578 7f74d7618a80 Compression algorithms supported:
+2021/03/14-06:59:23.416579 7f74d7618a80 Snappy supported: 1
+2021/03/14-06:59:23.416580 7f74d7618a80 Zlib supported: 1
+2021/03/14-06:59:23.416580 7f74d7618a80 Bzip supported: 1
+2021/03/14-06:59:23.416581 7f74d7618a80 LZ4 supported: 1
+2021/03/14-06:59:23.416581 7f74d7618a80 ZSTDNotFinal supported: 1
+2021/03/14-06:59:23.416585 7f74d7618a80 ZSTD supported: 1
+2021/03/14-06:59:23.416589 7f74d7618a80 Fast CRC32 supported: Supported on x86
+2021/03/14-06:59:23.416590 7f74d7618a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-06:59:23.416681 7f74d7618a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-06:59:23.416732 7f74d7618a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-06:59:23.416733 7f74d7618a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-06:59:23.416734 7f74d7618a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-06:59:23.416735 7f74d7618a80 Options.compaction_filter: None
+2021/03/14-06:59:23.416736 7f74d7618a80 Options.compaction_filter_factory: None
+2021/03/14-06:59:23.416736 7f74d7618a80 Options.memtable_factory: SkipListFactory
+2021/03/14-06:59:23.416737 7f74d7618a80 Options.table_factory: BlockBasedTable
+2021/03/14-06:59:23.416753 7f74d7618a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x28f0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x28d5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-06:59:23.416759 7f74d7618a80 Options.write_buffer_size: 134217728
+2021/03/14-06:59:23.416760 7f74d7618a80 Options.max_write_buffer_number: 6
+2021/03/14-06:59:23.416760 7f74d7618a80 Options.compression[0]: NoCompression
+2021/03/14-06:59:23.416761 7f74d7618a80 Options.compression[1]: NoCompression
+2021/03/14-06:59:23.416762 7f74d7618a80 Options.compression[2]: Snappy
+2021/03/14-06:59:23.416762 7f74d7618a80 Options.compression[3]: Snappy
+2021/03/14-06:59:23.416763 7f74d7618a80 Options.compression[4]: Snappy
+2021/03/14-06:59:23.416763 7f74d7618a80 Options.compression[5]: Snappy
+2021/03/14-06:59:23.416764 7f74d7618a80 Options.compression[6]: Snappy
+2021/03/14-06:59:23.416764 7f74d7618a80 Options.bottommost_compression: Disabled
+2021/03/14-06:59:23.416765 7f74d7618a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-06:59:23.416766 7f74d7618a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-06:59:23.416766 7f74d7618a80 Options.num_levels: 7
+2021/03/14-06:59:23.416767 7f74d7618a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-06:59:23.416768 7f74d7618a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-06:59:23.416768 7f74d7618a80 Options.compression_opts.window_bits: -14
+2021/03/14-06:59:23.416769 7f74d7618a80 Options.compression_opts.level: -1
+2021/03/14-06:59:23.416769 7f74d7618a80 Options.compression_opts.strategy: 0
+2021/03/14-06:59:23.416770 7f74d7618a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-06:59:23.416770 7f74d7618a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-06:59:23.416771 7f74d7618a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-06:59:23.416771 7f74d7618a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-06:59:23.416772 7f74d7618a80 Options.target_file_size_base: 67108864
+2021/03/14-06:59:23.416773 7f74d7618a80 Options.target_file_size_multiplier: 1
+2021/03/14-06:59:23.416773 7f74d7618a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-06:59:23.416774 7f74d7618a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-06:59:23.416774 7f74d7618a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-06:59:23.416776 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-06:59:23.416784 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-06:59:23.416785 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-06:59:23.416785 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-06:59:23.416786 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-06:59:23.416786 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-06:59:23.416787 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-06:59:23.416787 7f74d7618a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-06:59:23.416788 7f74d7618a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-06:59:23.416788 7f74d7618a80 Options.arena_block_size: 16777216
+2021/03/14-06:59:23.416789 7f74d7618a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-06:59:23.416790 7f74d7618a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-06:59:23.416790 7f74d7618a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-06:59:23.416791 7f74d7618a80 Options.disable_auto_compactions: 0
+2021/03/14-06:59:23.416792 7f74d7618a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-06:59:23.416793 7f74d7618a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-06:59:23.416794 7f74d7618a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-06:59:23.416794 7f74d7618a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-06:59:23.416795 7f74d7618a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-06:59:23.416795 7f74d7618a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-06:59:23.416796 7f74d7618a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-06:59:23.416797 7f74d7618a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-06:59:23.416798 7f74d7618a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-06:59:23.416798 7f74d7618a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-06:59:23.416799 7f74d7618a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-06:59:23.416799 7f74d7618a80 Options.table_properties_collectors:
+2021/03/14-06:59:23.416800 7f74d7618a80 Options.inplace_update_support: 0
+2021/03/14-06:59:23.416801 7f74d7618a80 Options.inplace_update_num_locks: 10000
+2021/03/14-06:59:23.416801 7f74d7618a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-06:59:23.416802 7f74d7618a80 Options.memtable_huge_page_size: 0
+2021/03/14-06:59:23.416803 7f74d7618a80 Options.bloom_locality: 0
+2021/03/14-06:59:23.416803 7f74d7618a80 Options.max_successive_merges: 0
+2021/03/14-06:59:23.416804 7f74d7618a80 Options.optimize_filters_for_hits: 0
+2021/03/14-06:59:23.416804 7f74d7618a80 Options.paranoid_file_checks: 0
+2021/03/14-06:59:23.416805 7f74d7618a80 Options.force_consistency_checks: 0
+2021/03/14-06:59:23.416805 7f74d7618a80 Options.report_bg_io_stats: 0
+2021/03/14-06:59:23.417165 7f74d7618a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-06:59:23.417168 7f74d7618a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-06:59:23.417341 7f74d7618a80 EVENT_LOG_v1 {"time_micros": 1615701563417332, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-06:59:23.417347 7f74d7618a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-06:59:24.079093 7f74d7618a80 EVENT_LOG_v1 {"time_micros": 1615701564079089, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615701884822760 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701884822760
new file mode 100644
index 0000000..0621952
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701884822760
@@ -0,0 +1,186 @@
+2021/03/14-06:59:24.090839 7f74d7618a80 RocksDB version: 5.11.3
+2021/03/14-06:59:24.090892 7f74d7618a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-06:59:24.090893 7f74d7618a80 Compile date Mar 13 2021
+2021/03/14-06:59:24.090898 7f74d7618a80 DB SUMMARY
+2021/03/14-06:59:24.091037 7f74d7618a80 CURRENT file: CURRENT
+2021/03/14-06:59:24.091038 7f74d7618a80 IDENTITY file: IDENTITY
+2021/03/14-06:59:24.091051 7f74d7618a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-06:59:24.091053 7f74d7618a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-06:59:24.091053 7f74d7618a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-06:59:24.091058 7f74d7618a80 Options.error_if_exists: 0
+2021/03/14-06:59:24.091059 7f74d7618a80 Options.create_if_missing: 1
+2021/03/14-06:59:24.091060 7f74d7618a80 Options.paranoid_checks: 1
+2021/03/14-06:59:24.091060 7f74d7618a80 Options.env: 0x7f74d7fd2080
+2021/03/14-06:59:24.091061 7f74d7618a80 Options.info_log: 0x28f8ca0
+2021/03/14-06:59:24.091061 7f74d7618a80 Options.max_file_opening_threads: 16
+2021/03/14-06:59:24.091062 7f74d7618a80 Options.statistics: (nil)
+2021/03/14-06:59:24.091063 7f74d7618a80 Options.use_fsync: 0
+2021/03/14-06:59:24.091063 7f74d7618a80 Options.max_log_file_size: 0
+2021/03/14-06:59:24.091064 7f74d7618a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-06:59:24.091065 7f74d7618a80 Options.log_file_time_to_roll: 0
+2021/03/14-06:59:24.091065 7f74d7618a80 Options.keep_log_file_num: 1000
+2021/03/14-06:59:24.091066 7f74d7618a80 Options.recycle_log_file_num: 0
+2021/03/14-06:59:24.091066 7f74d7618a80 Options.allow_fallocate: 1
+2021/03/14-06:59:24.091067 7f74d7618a80 Options.allow_mmap_reads: 0
+2021/03/14-06:59:24.091067 7f74d7618a80 Options.allow_mmap_writes: 0
+2021/03/14-06:59:24.091068 7f74d7618a80 Options.use_direct_reads: 0
+2021/03/14-06:59:24.091068 7f74d7618a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-06:59:24.091069 7f74d7618a80 Options.create_missing_column_families: 0
+2021/03/14-06:59:24.091070 7f74d7618a80 Options.db_log_dir:
+2021/03/14-06:59:24.091070 7f74d7618a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-06:59:24.091071 7f74d7618a80 Options.table_cache_numshardbits: 6
+2021/03/14-06:59:24.091071 7f74d7618a80 Options.max_subcompactions: 1
+2021/03/14-06:59:24.091072 7f74d7618a80 Options.max_background_flushes: -1
+2021/03/14-06:59:24.091073 7f74d7618a80 Options.WAL_ttl_seconds: 0
+2021/03/14-06:59:24.091073 7f74d7618a80 Options.WAL_size_limit_MB: 0
+2021/03/14-06:59:24.091074 7f74d7618a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-06:59:24.091074 7f74d7618a80 Options.is_fd_close_on_exec: 1
+2021/03/14-06:59:24.091075 7f74d7618a80 Options.advise_random_on_open: 1
+2021/03/14-06:59:24.091075 7f74d7618a80 Options.db_write_buffer_size: 0
+2021/03/14-06:59:24.091076 7f74d7618a80 Options.write_buffer_manager: 0x28e0b90
+2021/03/14-06:59:24.091077 7f74d7618a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-06:59:24.091077 7f74d7618a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-06:59:24.091078 7f74d7618a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-06:59:24.091078 7f74d7618a80 Options.use_adaptive_mutex: 0
+2021/03/14-06:59:24.091079 7f74d7618a80 Options.rate_limiter: (nil)
+2021/03/14-06:59:24.091080 7f74d7618a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-06:59:24.091088 7f74d7618a80 Options.wal_recovery_mode: 2
+2021/03/14-06:59:24.091089 7f74d7618a80 Options.enable_thread_tracking: 0
+2021/03/14-06:59:24.091089 7f74d7618a80 Options.enable_pipelined_write: 0
+2021/03/14-06:59:24.091090 7f74d7618a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-06:59:24.091090 7f74d7618a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-06:59:24.091091 7f74d7618a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-06:59:24.091092 7f74d7618a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-06:59:24.091092 7f74d7618a80 Options.row_cache: None
+2021/03/14-06:59:24.091093 7f74d7618a80 Options.wal_filter: None
+2021/03/14-06:59:24.091093 7f74d7618a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-06:59:24.091094 7f74d7618a80 Options.allow_ingest_behind: 0
+2021/03/14-06:59:24.091095 7f74d7618a80 Options.preserve_deletes: 0
+2021/03/14-06:59:24.091095 7f74d7618a80 Options.two_write_queues: 0
+2021/03/14-06:59:24.091096 7f74d7618a80 Options.manual_wal_flush: 0
+2021/03/14-06:59:24.091097 7f74d7618a80 Options.max_background_jobs: 16
+2021/03/14-06:59:24.091097 7f74d7618a80 Options.max_background_compactions: -1
+2021/03/14-06:59:24.091098 7f74d7618a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-06:59:24.091098 7f74d7618a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-06:59:24.091099 7f74d7618a80 Options.delayed_write_rate : 16777216
+2021/03/14-06:59:24.091100 7f74d7618a80 Options.max_total_wal_size: 0
+2021/03/14-06:59:24.091100 7f74d7618a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-06:59:24.091101 7f74d7618a80 Options.stats_dump_period_sec: 600
+2021/03/14-06:59:24.091101 7f74d7618a80 Options.max_open_files: -1
+2021/03/14-06:59:24.091102 7f74d7618a80 Options.bytes_per_sync: 0
+2021/03/14-06:59:24.091103 7f74d7618a80 Options.wal_bytes_per_sync: 0
+2021/03/14-06:59:24.091103 7f74d7618a80 Options.compaction_readahead_size: 0
+2021/03/14-06:59:24.091104 7f74d7618a80 Compression algorithms supported:
+2021/03/14-06:59:24.091104 7f74d7618a80 Snappy supported: 1
+2021/03/14-06:59:24.091105 7f74d7618a80 Zlib supported: 1
+2021/03/14-06:59:24.091105 7f74d7618a80 Bzip supported: 1
+2021/03/14-06:59:24.091106 7f74d7618a80 LZ4 supported: 1
+2021/03/14-06:59:24.091107 7f74d7618a80 ZSTDNotFinal supported: 1
+2021/03/14-06:59:24.091110 7f74d7618a80 ZSTD supported: 1
+2021/03/14-06:59:24.091113 7f74d7618a80 Fast CRC32 supported: Supported on x86
+2021/03/14-06:59:24.091115 7f74d7618a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-06:59:24.091205 7f74d7618a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-06:59:24.091261 7f74d7618a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-06:59:24.091263 7f74d7618a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-06:59:24.091264 7f74d7618a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-06:59:24.091265 7f74d7618a80 Options.compaction_filter: None
+2021/03/14-06:59:24.091265 7f74d7618a80 Options.compaction_filter_factory: None
+2021/03/14-06:59:24.091266 7f74d7618a80 Options.memtable_factory: SkipListFactory
+2021/03/14-06:59:24.091267 7f74d7618a80 Options.table_factory: BlockBasedTable
+2021/03/14-06:59:24.091283 7f74d7618a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x28f0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x28d5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-06:59:24.091289 7f74d7618a80 Options.write_buffer_size: 134217728
+2021/03/14-06:59:24.091289 7f74d7618a80 Options.max_write_buffer_number: 6
+2021/03/14-06:59:24.091290 7f74d7618a80 Options.compression[0]: NoCompression
+2021/03/14-06:59:24.091291 7f74d7618a80 Options.compression[1]: NoCompression
+2021/03/14-06:59:24.091291 7f74d7618a80 Options.compression[2]: Snappy
+2021/03/14-06:59:24.091292 7f74d7618a80 Options.compression[3]: Snappy
+2021/03/14-06:59:24.091293 7f74d7618a80 Options.compression[4]: Snappy
+2021/03/14-06:59:24.091293 7f74d7618a80 Options.compression[5]: Snappy
+2021/03/14-06:59:24.091294 7f74d7618a80 Options.compression[6]: Snappy
+2021/03/14-06:59:24.091294 7f74d7618a80 Options.bottommost_compression: Disabled
+2021/03/14-06:59:24.091295 7f74d7618a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-06:59:24.091296 7f74d7618a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-06:59:24.091296 7f74d7618a80 Options.num_levels: 7
+2021/03/14-06:59:24.091297 7f74d7618a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-06:59:24.091297 7f74d7618a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-06:59:24.091298 7f74d7618a80 Options.compression_opts.window_bits: -14
+2021/03/14-06:59:24.091299 7f74d7618a80 Options.compression_opts.level: -1
+2021/03/14-06:59:24.091299 7f74d7618a80 Options.compression_opts.strategy: 0
+2021/03/14-06:59:24.091300 7f74d7618a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-06:59:24.091300 7f74d7618a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-06:59:24.091301 7f74d7618a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-06:59:24.091301 7f74d7618a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-06:59:24.091302 7f74d7618a80 Options.target_file_size_base: 67108864
+2021/03/14-06:59:24.091303 7f74d7618a80 Options.target_file_size_multiplier: 1
+2021/03/14-06:59:24.091303 7f74d7618a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-06:59:24.091304 7f74d7618a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-06:59:24.091304 7f74d7618a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-06:59:24.091306 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-06:59:24.091315 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-06:59:24.091315 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-06:59:24.091316 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-06:59:24.091317 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-06:59:24.091317 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-06:59:24.091318 7f74d7618a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-06:59:24.091318 7f74d7618a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-06:59:24.091319 7f74d7618a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-06:59:24.091319 7f74d7618a80 Options.arena_block_size: 16777216
+2021/03/14-06:59:24.091320 7f74d7618a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-06:59:24.091321 7f74d7618a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-06:59:24.091321 7f74d7618a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-06:59:24.091322 7f74d7618a80 Options.disable_auto_compactions: 0
+2021/03/14-06:59:24.091324 7f74d7618a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-06:59:24.091324 7f74d7618a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-06:59:24.091325 7f74d7618a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-06:59:24.091326 7f74d7618a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-06:59:24.091326 7f74d7618a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-06:59:24.091327 7f74d7618a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-06:59:24.091327 7f74d7618a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-06:59:24.091328 7f74d7618a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-06:59:24.091329 7f74d7618a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-06:59:24.091330 7f74d7618a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-06:59:24.091330 7f74d7618a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-06:59:24.091331 7f74d7618a80 Options.table_properties_collectors:
+2021/03/14-06:59:24.091331 7f74d7618a80 Options.inplace_update_support: 0
+2021/03/14-06:59:24.091332 7f74d7618a80 Options.inplace_update_num_locks: 10000
+2021/03/14-06:59:24.091332 7f74d7618a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-06:59:24.091333 7f74d7618a80 Options.memtable_huge_page_size: 0
+2021/03/14-06:59:24.091334 7f74d7618a80 Options.bloom_locality: 0
+2021/03/14-06:59:24.091334 7f74d7618a80 Options.max_successive_merges: 0
+2021/03/14-06:59:24.091335 7f74d7618a80 Options.optimize_filters_for_hits: 0
+2021/03/14-06:59:24.091336 7f74d7618a80 Options.paranoid_file_checks: 0
+2021/03/14-06:59:24.091336 7f74d7618a80 Options.force_consistency_checks: 0
+2021/03/14-06:59:24.091337 7f74d7618a80 Options.report_bg_io_stats: 0
+2021/03/14-06:59:24.091700 7f74d7618a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-06:59:24.091703 7f74d7618a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-06:59:24.091843 7f74d7618a80 EVENT_LOG_v1 {"time_micros": 1615701564091833, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-06:59:24.091849 7f74d7618a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-06:59:24.749053 7f74d7618a80 EVENT_LOG_v1 {"time_micros": 1615701564749050, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615701885958647 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701885958647
new file mode 100644
index 0000000..d3e83e9
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701885958647
@@ -0,0 +1,186 @@
+2021/03/14-07:04:44.824807 7ff181711a80 RocksDB version: 5.11.3
+2021/03/14-07:04:44.824880 7ff181711a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:04:44.824883 7ff181711a80 Compile date Mar 13 2021
+2021/03/14-07:04:44.824887 7ff181711a80 DB SUMMARY
+2021/03/14-07:04:44.825121 7ff181711a80 CURRENT file: CURRENT
+2021/03/14-07:04:44.825123 7ff181711a80 IDENTITY file: IDENTITY
+2021/03/14-07:04:44.825150 7ff181711a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:04:44.825152 7ff181711a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:04:44.825154 7ff181711a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:04:44.825163 7ff181711a80 Options.error_if_exists: 0
+2021/03/14-07:04:44.825165 7ff181711a80 Options.create_if_missing: 1
+2021/03/14-07:04:44.825166 7ff181711a80 Options.paranoid_checks: 1
+2021/03/14-07:04:44.825167 7ff181711a80 Options.env: 0x7ff1820cb080
+2021/03/14-07:04:44.825169 7ff181711a80 Options.info_log: 0x25e0fa0
+2021/03/14-07:04:44.825170 7ff181711a80 Options.max_file_opening_threads: 16
+2021/03/14-07:04:44.825171 7ff181711a80 Options.statistics: (nil)
+2021/03/14-07:04:44.825173 7ff181711a80 Options.use_fsync: 0
+2021/03/14-07:04:44.825174 7ff181711a80 Options.max_log_file_size: 0
+2021/03/14-07:04:44.825175 7ff181711a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:04:44.825176 7ff181711a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:04:44.825178 7ff181711a80 Options.keep_log_file_num: 1000
+2021/03/14-07:04:44.825179 7ff181711a80 Options.recycle_log_file_num: 0
+2021/03/14-07:04:44.825180 7ff181711a80 Options.allow_fallocate: 1
+2021/03/14-07:04:44.825182 7ff181711a80 Options.allow_mmap_reads: 0
+2021/03/14-07:04:44.825183 7ff181711a80 Options.allow_mmap_writes: 0
+2021/03/14-07:04:44.825184 7ff181711a80 Options.use_direct_reads: 0
+2021/03/14-07:04:44.825185 7ff181711a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:04:44.825186 7ff181711a80 Options.create_missing_column_families: 0
+2021/03/14-07:04:44.825187 7ff181711a80 Options.db_log_dir:
+2021/03/14-07:04:44.825188 7ff181711a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:04:44.825190 7ff181711a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:04:44.825191 7ff181711a80 Options.max_subcompactions: 1
+2021/03/14-07:04:44.825192 7ff181711a80 Options.max_background_flushes: -1
+2021/03/14-07:04:44.825194 7ff181711a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:04:44.825195 7ff181711a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:04:44.825196 7ff181711a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:04:44.825197 7ff181711a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:04:44.825199 7ff181711a80 Options.advise_random_on_open: 1
+2021/03/14-07:04:44.825200 7ff181711a80 Options.db_write_buffer_size: 0
+2021/03/14-07:04:44.825201 7ff181711a80 Options.write_buffer_manager: 0x25c8e90
+2021/03/14-07:04:44.825202 7ff181711a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:04:44.825204 7ff181711a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:04:44.825205 7ff181711a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:04:44.825206 7ff181711a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:04:44.825208 7ff181711a80 Options.rate_limiter: (nil)
+2021/03/14-07:04:44.825210 7ff181711a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:04:44.825222 7ff181711a80 Options.wal_recovery_mode: 2
+2021/03/14-07:04:44.825224 7ff181711a80 Options.enable_thread_tracking: 0
+2021/03/14-07:04:44.825225 7ff181711a80 Options.enable_pipelined_write: 0
+2021/03/14-07:04:44.825227 7ff181711a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:04:44.825228 7ff181711a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:04:44.825229 7ff181711a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:04:44.825230 7ff181711a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:04:44.825232 7ff181711a80 Options.row_cache: None
+2021/03/14-07:04:44.825233 7ff181711a80 Options.wal_filter: None
+2021/03/14-07:04:44.825234 7ff181711a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:04:44.825236 7ff181711a80 Options.allow_ingest_behind: 0
+2021/03/14-07:04:44.825237 7ff181711a80 Options.preserve_deletes: 0
+2021/03/14-07:04:44.825243 7ff181711a80 Options.two_write_queues: 0
+2021/03/14-07:04:44.825244 7ff181711a80 Options.manual_wal_flush: 0
+2021/03/14-07:04:44.825247 7ff181711a80 Options.max_background_jobs: 16
+2021/03/14-07:04:44.825248 7ff181711a80 Options.max_background_compactions: -1
+2021/03/14-07:04:44.825249 7ff181711a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:04:44.825250 7ff181711a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:04:44.825251 7ff181711a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:04:44.825252 7ff181711a80 Options.max_total_wal_size: 0
+2021/03/14-07:04:44.825254 7ff181711a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:04:44.825255 7ff181711a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:04:44.825256 7ff181711a80 Options.max_open_files: -1
+2021/03/14-07:04:44.825258 7ff181711a80 Options.bytes_per_sync: 0
+2021/03/14-07:04:44.825259 7ff181711a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:04:44.825260 7ff181711a80 Options.compaction_readahead_size: 0
+2021/03/14-07:04:44.825261 7ff181711a80 Compression algorithms supported:
+2021/03/14-07:04:44.825262 7ff181711a80 Snappy supported: 1
+2021/03/14-07:04:44.825263 7ff181711a80 Zlib supported: 1
+2021/03/14-07:04:44.825264 7ff181711a80 Bzip supported: 1
+2021/03/14-07:04:44.825266 7ff181711a80 LZ4 supported: 1
+2021/03/14-07:04:44.825267 7ff181711a80 ZSTDNotFinal supported: 1
+2021/03/14-07:04:44.825273 7ff181711a80 ZSTD supported: 1
+2021/03/14-07:04:44.825279 7ff181711a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:04:44.825281 7ff181711a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:04:44.825441 7ff181711a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:04:44.825525 7ff181711a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:04:44.825527 7ff181711a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:04:44.825528 7ff181711a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:04:44.825529 7ff181711a80 Options.compaction_filter: None
+2021/03/14-07:04:44.825529 7ff181711a80 Options.compaction_filter_factory: None
+2021/03/14-07:04:44.825530 7ff181711a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:04:44.825531 7ff181711a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:04:44.825549 7ff181711a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x25d8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x25bdf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:04:44.825557 7ff181711a80 Options.write_buffer_size: 134217728
+2021/03/14-07:04:44.825558 7ff181711a80 Options.max_write_buffer_number: 6
+2021/03/14-07:04:44.825559 7ff181711a80 Options.compression[0]: NoCompression
+2021/03/14-07:04:44.825559 7ff181711a80 Options.compression[1]: NoCompression
+2021/03/14-07:04:44.825560 7ff181711a80 Options.compression[2]: Snappy
+2021/03/14-07:04:44.825561 7ff181711a80 Options.compression[3]: Snappy
+2021/03/14-07:04:44.825561 7ff181711a80 Options.compression[4]: Snappy
+2021/03/14-07:04:44.825562 7ff181711a80 Options.compression[5]: Snappy
+2021/03/14-07:04:44.825563 7ff181711a80 Options.compression[6]: Snappy
+2021/03/14-07:04:44.825563 7ff181711a80 Options.bottommost_compression: Disabled
+2021/03/14-07:04:44.825564 7ff181711a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:04:44.825565 7ff181711a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:04:44.825565 7ff181711a80 Options.num_levels: 7
+2021/03/14-07:04:44.825566 7ff181711a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:04:44.825567 7ff181711a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:04:44.825567 7ff181711a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:04:44.825568 7ff181711a80 Options.compression_opts.level: -1
+2021/03/14-07:04:44.825568 7ff181711a80 Options.compression_opts.strategy: 0
+2021/03/14-07:04:44.825569 7ff181711a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:04:44.825570 7ff181711a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:04:44.825570 7ff181711a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:04:44.825571 7ff181711a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:04:44.825571 7ff181711a80 Options.target_file_size_base: 67108864
+2021/03/14-07:04:44.825572 7ff181711a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:04:44.825573 7ff181711a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:04:44.825573 7ff181711a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:04:44.825574 7ff181711a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:04:44.825576 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:04:44.825585 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:04:44.825586 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:04:44.825586 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:04:44.825587 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:04:44.825588 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:04:44.825588 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:04:44.825589 7ff181711a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:04:44.825589 7ff181711a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:04:44.825590 7ff181711a80 Options.arena_block_size: 16777216
+2021/03/14-07:04:44.825591 7ff181711a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:04:44.825591 7ff181711a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:04:44.825592 7ff181711a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:04:44.825593 7ff181711a80 Options.disable_auto_compactions: 0
+2021/03/14-07:04:44.825595 7ff181711a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:04:44.825596 7ff181711a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:04:44.825596 7ff181711a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:04:44.825597 7ff181711a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:04:44.825598 7ff181711a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:04:44.825598 7ff181711a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:04:44.825599 7ff181711a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:04:44.825600 7ff181711a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:04:44.825601 7ff181711a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:04:44.825601 7ff181711a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:04:44.825602 7ff181711a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:04:44.825602 7ff181711a80 Options.table_properties_collectors:
+2021/03/14-07:04:44.825603 7ff181711a80 Options.inplace_update_support: 0
+2021/03/14-07:04:44.825604 7ff181711a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:04:44.825604 7ff181711a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:04:44.825605 7ff181711a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:04:44.825606 7ff181711a80 Options.bloom_locality: 0
+2021/03/14-07:04:44.825607 7ff181711a80 Options.max_successive_merges: 0
+2021/03/14-07:04:44.825607 7ff181711a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:04:44.825608 7ff181711a80 Options.paranoid_file_checks: 0
+2021/03/14-07:04:44.825608 7ff181711a80 Options.force_consistency_checks: 0
+2021/03/14-07:04:44.825609 7ff181711a80 Options.report_bg_io_stats: 0
+2021/03/14-07:04:44.826036 7ff181711a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:04:44.826040 7ff181711a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:04:44.826206 7ff181711a80 EVENT_LOG_v1 {"time_micros": 1615701884826192, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:04:44.826211 7ff181711a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:04:45.945917 7ff181711a80 EVENT_LOG_v1 {"time_micros": 1615701885945914, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615701886695511 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701886695511
new file mode 100644
index 0000000..0e26862
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701886695511
@@ -0,0 +1,186 @@
+2021/03/14-07:04:45.959065 7ff181711a80 RocksDB version: 5.11.3
+2021/03/14-07:04:45.959121 7ff181711a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:04:45.959122 7ff181711a80 Compile date Mar 13 2021
+2021/03/14-07:04:45.959125 7ff181711a80 DB SUMMARY
+2021/03/14-07:04:45.959279 7ff181711a80 CURRENT file: CURRENT
+2021/03/14-07:04:45.959280 7ff181711a80 IDENTITY file: IDENTITY
+2021/03/14-07:04:45.959294 7ff181711a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:04:45.959295 7ff181711a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:04:45.959296 7ff181711a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:04:45.959301 7ff181711a80 Options.error_if_exists: 0
+2021/03/14-07:04:45.959302 7ff181711a80 Options.create_if_missing: 1
+2021/03/14-07:04:45.959303 7ff181711a80 Options.paranoid_checks: 1
+2021/03/14-07:04:45.959303 7ff181711a80 Options.env: 0x7ff1820cb080
+2021/03/14-07:04:45.959304 7ff181711a80 Options.info_log: 0x25e0fa0
+2021/03/14-07:04:45.959304 7ff181711a80 Options.max_file_opening_threads: 16
+2021/03/14-07:04:45.959305 7ff181711a80 Options.statistics: (nil)
+2021/03/14-07:04:45.959306 7ff181711a80 Options.use_fsync: 0
+2021/03/14-07:04:45.959307 7ff181711a80 Options.max_log_file_size: 0
+2021/03/14-07:04:45.959307 7ff181711a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:04:45.959308 7ff181711a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:04:45.959308 7ff181711a80 Options.keep_log_file_num: 1000
+2021/03/14-07:04:45.959309 7ff181711a80 Options.recycle_log_file_num: 0
+2021/03/14-07:04:45.959310 7ff181711a80 Options.allow_fallocate: 1
+2021/03/14-07:04:45.959310 7ff181711a80 Options.allow_mmap_reads: 0
+2021/03/14-07:04:45.959311 7ff181711a80 Options.allow_mmap_writes: 0
+2021/03/14-07:04:45.959312 7ff181711a80 Options.use_direct_reads: 0
+2021/03/14-07:04:45.959312 7ff181711a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:04:45.959313 7ff181711a80 Options.create_missing_column_families: 0
+2021/03/14-07:04:45.959313 7ff181711a80 Options.db_log_dir:
+2021/03/14-07:04:45.959314 7ff181711a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:04:45.959314 7ff181711a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:04:45.959315 7ff181711a80 Options.max_subcompactions: 1
+2021/03/14-07:04:45.959316 7ff181711a80 Options.max_background_flushes: -1
+2021/03/14-07:04:45.959316 7ff181711a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:04:45.959317 7ff181711a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:04:45.959317 7ff181711a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:04:45.959318 7ff181711a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:04:45.959319 7ff181711a80 Options.advise_random_on_open: 1
+2021/03/14-07:04:45.959319 7ff181711a80 Options.db_write_buffer_size: 0
+2021/03/14-07:04:45.959320 7ff181711a80 Options.write_buffer_manager: 0x25c8e90
+2021/03/14-07:04:45.959320 7ff181711a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:04:45.959321 7ff181711a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:04:45.959321 7ff181711a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:04:45.959322 7ff181711a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:04:45.959323 7ff181711a80 Options.rate_limiter: (nil)
+2021/03/14-07:04:45.959324 7ff181711a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:04:45.959333 7ff181711a80 Options.wal_recovery_mode: 2
+2021/03/14-07:04:45.959334 7ff181711a80 Options.enable_thread_tracking: 0
+2021/03/14-07:04:45.959334 7ff181711a80 Options.enable_pipelined_write: 0
+2021/03/14-07:04:45.959335 7ff181711a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:04:45.959336 7ff181711a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:04:45.959336 7ff181711a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:04:45.959337 7ff181711a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:04:45.959337 7ff181711a80 Options.row_cache: None
+2021/03/14-07:04:45.959338 7ff181711a80 Options.wal_filter: None
+2021/03/14-07:04:45.959339 7ff181711a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:04:45.959339 7ff181711a80 Options.allow_ingest_behind: 0
+2021/03/14-07:04:45.959340 7ff181711a80 Options.preserve_deletes: 0
+2021/03/14-07:04:45.959340 7ff181711a80 Options.two_write_queues: 0
+2021/03/14-07:04:45.959341 7ff181711a80 Options.manual_wal_flush: 0
+2021/03/14-07:04:45.959342 7ff181711a80 Options.max_background_jobs: 16
+2021/03/14-07:04:45.959343 7ff181711a80 Options.max_background_compactions: -1
+2021/03/14-07:04:45.959343 7ff181711a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:04:45.959344 7ff181711a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:04:45.959344 7ff181711a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:04:45.959345 7ff181711a80 Options.max_total_wal_size: 0
+2021/03/14-07:04:45.959346 7ff181711a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:04:45.959346 7ff181711a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:04:45.959347 7ff181711a80 Options.max_open_files: -1
+2021/03/14-07:04:45.959347 7ff181711a80 Options.bytes_per_sync: 0
+2021/03/14-07:04:45.959348 7ff181711a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:04:45.959349 7ff181711a80 Options.compaction_readahead_size: 0
+2021/03/14-07:04:45.959349 7ff181711a80 Compression algorithms supported:
+2021/03/14-07:04:45.959350 7ff181711a80 Snappy supported: 1
+2021/03/14-07:04:45.959350 7ff181711a80 Zlib supported: 1
+2021/03/14-07:04:45.959351 7ff181711a80 Bzip supported: 1
+2021/03/14-07:04:45.959351 7ff181711a80 LZ4 supported: 1
+2021/03/14-07:04:45.959352 7ff181711a80 ZSTDNotFinal supported: 1
+2021/03/14-07:04:45.959356 7ff181711a80 ZSTD supported: 1
+2021/03/14-07:04:45.959360 7ff181711a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:04:45.959361 7ff181711a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:04:45.959471 7ff181711a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:04:45.959526 7ff181711a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:04:45.959528 7ff181711a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:04:45.959529 7ff181711a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:04:45.959530 7ff181711a80 Options.compaction_filter: None
+2021/03/14-07:04:45.959530 7ff181711a80 Options.compaction_filter_factory: None
+2021/03/14-07:04:45.959531 7ff181711a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:04:45.959532 7ff181711a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:04:45.959550 7ff181711a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x25d8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x25bdf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:04:45.959556 7ff181711a80 Options.write_buffer_size: 134217728
+2021/03/14-07:04:45.959556 7ff181711a80 Options.max_write_buffer_number: 6
+2021/03/14-07:04:45.959557 7ff181711a80 Options.compression[0]: NoCompression
+2021/03/14-07:04:45.959558 7ff181711a80 Options.compression[1]: NoCompression
+2021/03/14-07:04:45.959558 7ff181711a80 Options.compression[2]: Snappy
+2021/03/14-07:04:45.959559 7ff181711a80 Options.compression[3]: Snappy
+2021/03/14-07:04:45.959560 7ff181711a80 Options.compression[4]: Snappy
+2021/03/14-07:04:45.959560 7ff181711a80 Options.compression[5]: Snappy
+2021/03/14-07:04:45.959561 7ff181711a80 Options.compression[6]: Snappy
+2021/03/14-07:04:45.959562 7ff181711a80 Options.bottommost_compression: Disabled
+2021/03/14-07:04:45.959562 7ff181711a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:04:45.959563 7ff181711a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:04:45.959563 7ff181711a80 Options.num_levels: 7
+2021/03/14-07:04:45.959564 7ff181711a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:04:45.959565 7ff181711a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:04:45.959565 7ff181711a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:04:45.959566 7ff181711a80 Options.compression_opts.level: -1
+2021/03/14-07:04:45.959566 7ff181711a80 Options.compression_opts.strategy: 0
+2021/03/14-07:04:45.959567 7ff181711a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:04:45.959568 7ff181711a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:04:45.959568 7ff181711a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:04:45.959569 7ff181711a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:04:45.959569 7ff181711a80 Options.target_file_size_base: 67108864
+2021/03/14-07:04:45.959570 7ff181711a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:04:45.959571 7ff181711a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:04:45.959571 7ff181711a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:04:45.959572 7ff181711a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:04:45.959574 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:04:45.959581 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:04:45.959582 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:04:45.959583 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:04:45.959583 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:04:45.959584 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:04:45.959584 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:04:45.959585 7ff181711a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:04:45.959585 7ff181711a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:04:45.959586 7ff181711a80 Options.arena_block_size: 16777216
+2021/03/14-07:04:45.959587 7ff181711a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:04:45.959587 7ff181711a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:04:45.959588 7ff181711a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:04:45.959589 7ff181711a80 Options.disable_auto_compactions: 0
+2021/03/14-07:04:45.959590 7ff181711a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:04:45.959591 7ff181711a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:04:45.959592 7ff181711a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:04:45.959592 7ff181711a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:04:45.959593 7ff181711a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:04:45.959594 7ff181711a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:04:45.959594 7ff181711a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:04:45.959595 7ff181711a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:04:45.959596 7ff181711a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:04:45.959596 7ff181711a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:04:45.959597 7ff181711a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:04:45.959598 7ff181711a80 Options.table_properties_collectors:
+2021/03/14-07:04:45.959598 7ff181711a80 Options.inplace_update_support: 0
+2021/03/14-07:04:45.959599 7ff181711a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:04:45.959599 7ff181711a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:04:45.959600 7ff181711a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:04:45.959601 7ff181711a80 Options.bloom_locality: 0
+2021/03/14-07:04:45.959601 7ff181711a80 Options.max_successive_merges: 0
+2021/03/14-07:04:45.959602 7ff181711a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:04:45.959603 7ff181711a80 Options.paranoid_file_checks: 0
+2021/03/14-07:04:45.959603 7ff181711a80 Options.force_consistency_checks: 0
+2021/03/14-07:04:45.959604 7ff181711a80 Options.report_bg_io_stats: 0
+2021/03/14-07:04:45.959991 7ff181711a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:04:45.959994 7ff181711a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:04:45.960143 7ff181711a80 EVENT_LOG_v1 {"time_micros": 1615701885960130, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:04:45.960148 7ff181711a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:04:46.682808 7ff181711a80 EVENT_LOG_v1 {"time_micros": 1615701886682805, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615701887423989 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701887423989
new file mode 100644
index 0000000..d65c4b4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615701887423989
@@ -0,0 +1,186 @@
+2021/03/14-07:04:46.695941 7ff181711a80 RocksDB version: 5.11.3
+2021/03/14-07:04:46.695998 7ff181711a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:04:46.696000 7ff181711a80 Compile date Mar 13 2021
+2021/03/14-07:04:46.696003 7ff181711a80 DB SUMMARY
+2021/03/14-07:04:46.696148 7ff181711a80 CURRENT file: CURRENT
+2021/03/14-07:04:46.696149 7ff181711a80 IDENTITY file: IDENTITY
+2021/03/14-07:04:46.696163 7ff181711a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:04:46.696164 7ff181711a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:04:46.696165 7ff181711a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:04:46.696170 7ff181711a80 Options.error_if_exists: 0
+2021/03/14-07:04:46.696171 7ff181711a80 Options.create_if_missing: 1
+2021/03/14-07:04:46.696172 7ff181711a80 Options.paranoid_checks: 1
+2021/03/14-07:04:46.696172 7ff181711a80 Options.env: 0x7ff1820cb080
+2021/03/14-07:04:46.696173 7ff181711a80 Options.info_log: 0x25e0fa0
+2021/03/14-07:04:46.696174 7ff181711a80 Options.max_file_opening_threads: 16
+2021/03/14-07:04:46.696174 7ff181711a80 Options.statistics: (nil)
+2021/03/14-07:04:46.696175 7ff181711a80 Options.use_fsync: 0
+2021/03/14-07:04:46.696176 7ff181711a80 Options.max_log_file_size: 0
+2021/03/14-07:04:46.696176 7ff181711a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:04:46.696177 7ff181711a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:04:46.696178 7ff181711a80 Options.keep_log_file_num: 1000
+2021/03/14-07:04:46.696178 7ff181711a80 Options.recycle_log_file_num: 0
+2021/03/14-07:04:46.696179 7ff181711a80 Options.allow_fallocate: 1
+2021/03/14-07:04:46.696179 7ff181711a80 Options.allow_mmap_reads: 0
+2021/03/14-07:04:46.696180 7ff181711a80 Options.allow_mmap_writes: 0
+2021/03/14-07:04:46.696180 7ff181711a80 Options.use_direct_reads: 0
+2021/03/14-07:04:46.696181 7ff181711a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:04:46.696182 7ff181711a80 Options.create_missing_column_families: 0
+2021/03/14-07:04:46.696182 7ff181711a80 Options.db_log_dir:
+2021/03/14-07:04:46.696183 7ff181711a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:04:46.696183 7ff181711a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:04:46.696184 7ff181711a80 Options.max_subcompactions: 1
+2021/03/14-07:04:46.696185 7ff181711a80 Options.max_background_flushes: -1
+2021/03/14-07:04:46.696185 7ff181711a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:04:46.696186 7ff181711a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:04:46.696186 7ff181711a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:04:46.696187 7ff181711a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:04:46.696188 7ff181711a80 Options.advise_random_on_open: 1
+2021/03/14-07:04:46.696188 7ff181711a80 Options.db_write_buffer_size: 0
+2021/03/14-07:04:46.696189 7ff181711a80 Options.write_buffer_manager: 0x25c8e90
+2021/03/14-07:04:46.696189 7ff181711a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:04:46.696190 7ff181711a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:04:46.696191 7ff181711a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:04:46.696191 7ff181711a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:04:46.696192 7ff181711a80 Options.rate_limiter: (nil)
+2021/03/14-07:04:46.696193 7ff181711a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:04:46.696201 7ff181711a80 Options.wal_recovery_mode: 2
+2021/03/14-07:04:46.696201 7ff181711a80 Options.enable_thread_tracking: 0
+2021/03/14-07:04:46.696202 7ff181711a80 Options.enable_pipelined_write: 0
+2021/03/14-07:04:46.696203 7ff181711a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:04:46.696203 7ff181711a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:04:46.696204 7ff181711a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:04:46.696204 7ff181711a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:04:46.696205 7ff181711a80 Options.row_cache: None
+2021/03/14-07:04:46.696205 7ff181711a80 Options.wal_filter: None
+2021/03/14-07:04:46.696206 7ff181711a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:04:46.696207 7ff181711a80 Options.allow_ingest_behind: 0
+2021/03/14-07:04:46.696207 7ff181711a80 Options.preserve_deletes: 0
+2021/03/14-07:04:46.696208 7ff181711a80 Options.two_write_queues: 0
+2021/03/14-07:04:46.696208 7ff181711a80 Options.manual_wal_flush: 0
+2021/03/14-07:04:46.696210 7ff181711a80 Options.max_background_jobs: 16
+2021/03/14-07:04:46.696210 7ff181711a80 Options.max_background_compactions: -1
+2021/03/14-07:04:46.696211 7ff181711a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:04:46.696211 7ff181711a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:04:46.696212 7ff181711a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:04:46.696213 7ff181711a80 Options.max_total_wal_size: 0
+2021/03/14-07:04:46.696213 7ff181711a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:04:46.696214 7ff181711a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:04:46.696214 7ff181711a80 Options.max_open_files: -1
+2021/03/14-07:04:46.696215 7ff181711a80 Options.bytes_per_sync: 0
+2021/03/14-07:04:46.696216 7ff181711a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:04:46.696216 7ff181711a80 Options.compaction_readahead_size: 0
+2021/03/14-07:04:46.696217 7ff181711a80 Compression algorithms supported:
+2021/03/14-07:04:46.696217 7ff181711a80 Snappy supported: 1
+2021/03/14-07:04:46.696218 7ff181711a80 Zlib supported: 1
+2021/03/14-07:04:46.696219 7ff181711a80 Bzip supported: 1
+2021/03/14-07:04:46.696219 7ff181711a80 LZ4 supported: 1
+2021/03/14-07:04:46.696220 7ff181711a80 ZSTDNotFinal supported: 1
+2021/03/14-07:04:46.696224 7ff181711a80 ZSTD supported: 1
+2021/03/14-07:04:46.696227 7ff181711a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:04:46.696228 7ff181711a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:04:46.696328 7ff181711a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:04:46.696383 7ff181711a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:04:46.696385 7ff181711a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:04:46.696386 7ff181711a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:04:46.696387 7ff181711a80 Options.compaction_filter: None
+2021/03/14-07:04:46.696387 7ff181711a80 Options.compaction_filter_factory: None
+2021/03/14-07:04:46.696388 7ff181711a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:04:46.696389 7ff181711a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:04:46.696402 7ff181711a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x25d8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x25bdf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:04:46.696403 7ff181711a80 Options.write_buffer_size: 134217728
+2021/03/14-07:04:46.696404 7ff181711a80 Options.max_write_buffer_number: 6
+2021/03/14-07:04:46.696405 7ff181711a80 Options.compression[0]: NoCompression
+2021/03/14-07:04:46.696405 7ff181711a80 Options.compression[1]: NoCompression
+2021/03/14-07:04:46.696406 7ff181711a80 Options.compression[2]: Snappy
+2021/03/14-07:04:46.696407 7ff181711a80 Options.compression[3]: Snappy
+2021/03/14-07:04:46.696407 7ff181711a80 Options.compression[4]: Snappy
+2021/03/14-07:04:46.696408 7ff181711a80 Options.compression[5]: Snappy
+2021/03/14-07:04:46.696408 7ff181711a80 Options.compression[6]: Snappy
+2021/03/14-07:04:46.696409 7ff181711a80 Options.bottommost_compression: Disabled
+2021/03/14-07:04:46.696410 7ff181711a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:04:46.696410 7ff181711a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:04:46.696411 7ff181711a80 Options.num_levels: 7
+2021/03/14-07:04:46.696412 7ff181711a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:04:46.696412 7ff181711a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:04:46.696413 7ff181711a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:04:46.696413 7ff181711a80 Options.compression_opts.level: -1
+2021/03/14-07:04:46.696414 7ff181711a80 Options.compression_opts.strategy: 0
+2021/03/14-07:04:46.696415 7ff181711a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:04:46.696415 7ff181711a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:04:46.696416 7ff181711a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:04:46.696416 7ff181711a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:04:46.696417 7ff181711a80 Options.target_file_size_base: 67108864
+2021/03/14-07:04:46.696418 7ff181711a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:04:46.696418 7ff181711a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:04:46.696419 7ff181711a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:04:46.696419 7ff181711a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:04:46.696421 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:04:46.696431 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:04:46.696432 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:04:46.696432 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:04:46.696433 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:04:46.696433 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:04:46.696434 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:04:46.696434 7ff181711a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:04:46.696435 7ff181711a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:04:46.696436 7ff181711a80 Options.arena_block_size: 16777216
+2021/03/14-07:04:46.696436 7ff181711a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:04:46.696437 7ff181711a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:04:46.696438 7ff181711a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:04:46.696438 7ff181711a80 Options.disable_auto_compactions: 0
+2021/03/14-07:04:46.696440 7ff181711a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:04:46.696441 7ff181711a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:04:46.696441 7ff181711a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:04:46.696442 7ff181711a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:04:46.696442 7ff181711a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:04:46.696443 7ff181711a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:04:46.696444 7ff181711a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:04:46.696445 7ff181711a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:04:46.696445 7ff181711a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:04:46.696446 7ff181711a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:04:46.696446 7ff181711a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:04:46.696447 7ff181711a80 Options.table_properties_collectors:
+2021/03/14-07:04:46.696448 7ff181711a80 Options.inplace_update_support: 0
+2021/03/14-07:04:46.696448 7ff181711a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:04:46.696449 7ff181711a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:04:46.696450 7ff181711a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:04:46.696450 7ff181711a80 Options.bloom_locality: 0
+2021/03/14-07:04:46.696451 7ff181711a80 Options.max_successive_merges: 0
+2021/03/14-07:04:46.696451 7ff181711a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:04:46.696452 7ff181711a80 Options.paranoid_file_checks: 0
+2021/03/14-07:04:46.696452 7ff181711a80 Options.force_consistency_checks: 0
+2021/03/14-07:04:46.696453 7ff181711a80 Options.report_bg_io_stats: 0
+2021/03/14-07:04:46.696845 7ff181711a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:04:46.696848 7ff181711a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:04:46.696998 7ff181711a80 EVENT_LOG_v1 {"time_micros": 1615701886696985, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:04:46.697004 7ff181711a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:04:47.411421 7ff181711a80 EVENT_LOG_v1 {"time_micros": 1615701887411417, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702319608417 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702319608417
new file mode 100644
index 0000000..8cfa16a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702319608417
@@ -0,0 +1,186 @@
+2021/03/14-07:04:47.424401 7ff181711a80 RocksDB version: 5.11.3
+2021/03/14-07:04:47.424456 7ff181711a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:04:47.424457 7ff181711a80 Compile date Mar 13 2021
+2021/03/14-07:04:47.424460 7ff181711a80 DB SUMMARY
+2021/03/14-07:04:47.424604 7ff181711a80 CURRENT file: CURRENT
+2021/03/14-07:04:47.424605 7ff181711a80 IDENTITY file: IDENTITY
+2021/03/14-07:04:47.424619 7ff181711a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:04:47.424620 7ff181711a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:04:47.424621 7ff181711a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:04:47.424626 7ff181711a80 Options.error_if_exists: 0
+2021/03/14-07:04:47.424626 7ff181711a80 Options.create_if_missing: 1
+2021/03/14-07:04:47.424627 7ff181711a80 Options.paranoid_checks: 1
+2021/03/14-07:04:47.424628 7ff181711a80 Options.env: 0x7ff1820cb080
+2021/03/14-07:04:47.424628 7ff181711a80 Options.info_log: 0x25e0fa0
+2021/03/14-07:04:47.424629 7ff181711a80 Options.max_file_opening_threads: 16
+2021/03/14-07:04:47.424629 7ff181711a80 Options.statistics: (nil)
+2021/03/14-07:04:47.424630 7ff181711a80 Options.use_fsync: 0
+2021/03/14-07:04:47.424631 7ff181711a80 Options.max_log_file_size: 0
+2021/03/14-07:04:47.424631 7ff181711a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:04:47.424632 7ff181711a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:04:47.424632 7ff181711a80 Options.keep_log_file_num: 1000
+2021/03/14-07:04:47.424633 7ff181711a80 Options.recycle_log_file_num: 0
+2021/03/14-07:04:47.424634 7ff181711a80 Options.allow_fallocate: 1
+2021/03/14-07:04:47.424634 7ff181711a80 Options.allow_mmap_reads: 0
+2021/03/14-07:04:47.424635 7ff181711a80 Options.allow_mmap_writes: 0
+2021/03/14-07:04:47.424635 7ff181711a80 Options.use_direct_reads: 0
+2021/03/14-07:04:47.424636 7ff181711a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:04:47.424636 7ff181711a80 Options.create_missing_column_families: 0
+2021/03/14-07:04:47.424637 7ff181711a80 Options.db_log_dir:
+2021/03/14-07:04:47.424637 7ff181711a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:04:47.424638 7ff181711a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:04:47.424639 7ff181711a80 Options.max_subcompactions: 1
+2021/03/14-07:04:47.424639 7ff181711a80 Options.max_background_flushes: -1
+2021/03/14-07:04:47.424640 7ff181711a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:04:47.424640 7ff181711a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:04:47.424641 7ff181711a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:04:47.424642 7ff181711a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:04:47.424642 7ff181711a80 Options.advise_random_on_open: 1
+2021/03/14-07:04:47.424643 7ff181711a80 Options.db_write_buffer_size: 0
+2021/03/14-07:04:47.424643 7ff181711a80 Options.write_buffer_manager: 0x25c8e90
+2021/03/14-07:04:47.424644 7ff181711a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:04:47.424644 7ff181711a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:04:47.424645 7ff181711a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:04:47.424646 7ff181711a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:04:47.424646 7ff181711a80 Options.rate_limiter: (nil)
+2021/03/14-07:04:47.424647 7ff181711a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:04:47.424654 7ff181711a80 Options.wal_recovery_mode: 2
+2021/03/14-07:04:47.424655 7ff181711a80 Options.enable_thread_tracking: 0
+2021/03/14-07:04:47.424656 7ff181711a80 Options.enable_pipelined_write: 0
+2021/03/14-07:04:47.424656 7ff181711a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:04:47.424657 7ff181711a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:04:47.424657 7ff181711a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:04:47.424658 7ff181711a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:04:47.424658 7ff181711a80 Options.row_cache: None
+2021/03/14-07:04:47.424659 7ff181711a80 Options.wal_filter: None
+2021/03/14-07:04:47.424660 7ff181711a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:04:47.424660 7ff181711a80 Options.allow_ingest_behind: 0
+2021/03/14-07:04:47.424661 7ff181711a80 Options.preserve_deletes: 0
+2021/03/14-07:04:47.424661 7ff181711a80 Options.two_write_queues: 0
+2021/03/14-07:04:47.424662 7ff181711a80 Options.manual_wal_flush: 0
+2021/03/14-07:04:47.424663 7ff181711a80 Options.max_background_jobs: 16
+2021/03/14-07:04:47.424663 7ff181711a80 Options.max_background_compactions: -1
+2021/03/14-07:04:47.424664 7ff181711a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:04:47.424665 7ff181711a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:04:47.424665 7ff181711a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:04:47.424666 7ff181711a80 Options.max_total_wal_size: 0
+2021/03/14-07:04:47.424666 7ff181711a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:04:47.424667 7ff181711a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:04:47.424667 7ff181711a80 Options.max_open_files: -1
+2021/03/14-07:04:47.424668 7ff181711a80 Options.bytes_per_sync: 0
+2021/03/14-07:04:47.424669 7ff181711a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:04:47.424669 7ff181711a80 Options.compaction_readahead_size: 0
+2021/03/14-07:04:47.424670 7ff181711a80 Compression algorithms supported:
+2021/03/14-07:04:47.424670 7ff181711a80 Snappy supported: 1
+2021/03/14-07:04:47.424671 7ff181711a80 Zlib supported: 1
+2021/03/14-07:04:47.424671 7ff181711a80 Bzip supported: 1
+2021/03/14-07:04:47.424672 7ff181711a80 LZ4 supported: 1
+2021/03/14-07:04:47.424673 7ff181711a80 ZSTDNotFinal supported: 1
+2021/03/14-07:04:47.424677 7ff181711a80 ZSTD supported: 1
+2021/03/14-07:04:47.424679 7ff181711a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:04:47.424681 7ff181711a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:04:47.424768 7ff181711a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:04:47.424821 7ff181711a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:04:47.424822 7ff181711a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:04:47.424823 7ff181711a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:04:47.424824 7ff181711a80 Options.compaction_filter: None
+2021/03/14-07:04:47.424824 7ff181711a80 Options.compaction_filter_factory: None
+2021/03/14-07:04:47.424825 7ff181711a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:04:47.424826 7ff181711a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:04:47.424839 7ff181711a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x25d8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x25bdf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:04:47.424840 7ff181711a80 Options.write_buffer_size: 134217728
+2021/03/14-07:04:47.424841 7ff181711a80 Options.max_write_buffer_number: 6
+2021/03/14-07:04:47.424842 7ff181711a80 Options.compression[0]: NoCompression
+2021/03/14-07:04:47.424842 7ff181711a80 Options.compression[1]: NoCompression
+2021/03/14-07:04:47.424843 7ff181711a80 Options.compression[2]: Snappy
+2021/03/14-07:04:47.424844 7ff181711a80 Options.compression[3]: Snappy
+2021/03/14-07:04:47.424844 7ff181711a80 Options.compression[4]: Snappy
+2021/03/14-07:04:47.424845 7ff181711a80 Options.compression[5]: Snappy
+2021/03/14-07:04:47.424845 7ff181711a80 Options.compression[6]: Snappy
+2021/03/14-07:04:47.424846 7ff181711a80 Options.bottommost_compression: Disabled
+2021/03/14-07:04:47.424847 7ff181711a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:04:47.424847 7ff181711a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:04:47.424848 7ff181711a80 Options.num_levels: 7
+2021/03/14-07:04:47.424848 7ff181711a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:04:47.424849 7ff181711a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:04:47.424850 7ff181711a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:04:47.424850 7ff181711a80 Options.compression_opts.level: -1
+2021/03/14-07:04:47.424851 7ff181711a80 Options.compression_opts.strategy: 0
+2021/03/14-07:04:47.424851 7ff181711a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:04:47.424852 7ff181711a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:04:47.424852 7ff181711a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:04:47.424853 7ff181711a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:04:47.424854 7ff181711a80 Options.target_file_size_base: 67108864
+2021/03/14-07:04:47.424854 7ff181711a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:04:47.424855 7ff181711a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:04:47.424855 7ff181711a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:04:47.424856 7ff181711a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:04:47.424858 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:04:47.424866 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:04:47.424867 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:04:47.424868 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:04:47.424868 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:04:47.424869 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:04:47.424869 7ff181711a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:04:47.424870 7ff181711a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:04:47.424870 7ff181711a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:04:47.424871 7ff181711a80 Options.arena_block_size: 16777216
+2021/03/14-07:04:47.424872 7ff181711a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:04:47.424872 7ff181711a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:04:47.424873 7ff181711a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:04:47.424873 7ff181711a80 Options.disable_auto_compactions: 0
+2021/03/14-07:04:47.424875 7ff181711a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:04:47.424876 7ff181711a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:04:47.424877 7ff181711a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:04:47.424877 7ff181711a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:04:47.424878 7ff181711a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:04:47.424878 7ff181711a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:04:47.424879 7ff181711a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:04:47.424880 7ff181711a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:04:47.424881 7ff181711a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:04:47.424881 7ff181711a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:04:47.424882 7ff181711a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:04:47.424882 7ff181711a80 Options.table_properties_collectors:
+2021/03/14-07:04:47.424883 7ff181711a80 Options.inplace_update_support: 0
+2021/03/14-07:04:47.424883 7ff181711a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:04:47.424884 7ff181711a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:04:47.424885 7ff181711a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:04:47.424885 7ff181711a80 Options.bloom_locality: 0
+2021/03/14-07:04:47.424886 7ff181711a80 Options.max_successive_merges: 0
+2021/03/14-07:04:47.424887 7ff181711a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:04:47.424887 7ff181711a80 Options.paranoid_file_checks: 0
+2021/03/14-07:04:47.424888 7ff181711a80 Options.force_consistency_checks: 0
+2021/03/14-07:04:47.424888 7ff181711a80 Options.report_bg_io_stats: 0
+2021/03/14-07:04:47.425263 7ff181711a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:04:47.425265 7ff181711a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:04:47.425411 7ff181711a80 EVENT_LOG_v1 {"time_micros": 1615701887425399, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:04:47.425417 7ff181711a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:04:48.137574 7ff181711a80 EVENT_LOG_v1 {"time_micros": 1615701888137570, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702320371127 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702320371127
new file mode 100644
index 0000000..e6cc225
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702320371127
@@ -0,0 +1,186 @@
+2021/03/14-07:11:59.608912 7f01e22fca80 RocksDB version: 5.11.3
+2021/03/14-07:11:59.608981 7f01e22fca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:11:59.608983 7f01e22fca80 Compile date Mar 13 2021
+2021/03/14-07:11:59.608987 7f01e22fca80 DB SUMMARY
+2021/03/14-07:11:59.609215 7f01e22fca80 CURRENT file: CURRENT
+2021/03/14-07:11:59.609218 7f01e22fca80 IDENTITY file: IDENTITY
+2021/03/14-07:11:59.609250 7f01e22fca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:11:59.609253 7f01e22fca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:11:59.609255 7f01e22fca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:11:59.609265 7f01e22fca80 Options.error_if_exists: 0
+2021/03/14-07:11:59.609267 7f01e22fca80 Options.create_if_missing: 1
+2021/03/14-07:11:59.609268 7f01e22fca80 Options.paranoid_checks: 1
+2021/03/14-07:11:59.609269 7f01e22fca80 Options.env: 0x7f01e2cb6080
+2021/03/14-07:11:59.609270 7f01e22fca80 Options.info_log: 0x254cca0
+2021/03/14-07:11:59.609271 7f01e22fca80 Options.max_file_opening_threads: 16
+2021/03/14-07:11:59.609272 7f01e22fca80 Options.statistics: (nil)
+2021/03/14-07:11:59.609274 7f01e22fca80 Options.use_fsync: 0
+2021/03/14-07:11:59.609275 7f01e22fca80 Options.max_log_file_size: 0
+2021/03/14-07:11:59.609276 7f01e22fca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:11:59.609277 7f01e22fca80 Options.log_file_time_to_roll: 0
+2021/03/14-07:11:59.609279 7f01e22fca80 Options.keep_log_file_num: 1000
+2021/03/14-07:11:59.609280 7f01e22fca80 Options.recycle_log_file_num: 0
+2021/03/14-07:11:59.609281 7f01e22fca80 Options.allow_fallocate: 1
+2021/03/14-07:11:59.609282 7f01e22fca80 Options.allow_mmap_reads: 0
+2021/03/14-07:11:59.609283 7f01e22fca80 Options.allow_mmap_writes: 0
+2021/03/14-07:11:59.609284 7f01e22fca80 Options.use_direct_reads: 0
+2021/03/14-07:11:59.609285 7f01e22fca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:11:59.609287 7f01e22fca80 Options.create_missing_column_families: 0
+2021/03/14-07:11:59.609288 7f01e22fca80 Options.db_log_dir:
+2021/03/14-07:11:59.609289 7f01e22fca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:11:59.609290 7f01e22fca80 Options.table_cache_numshardbits: 6
+2021/03/14-07:11:59.609292 7f01e22fca80 Options.max_subcompactions: 1
+2021/03/14-07:11:59.609293 7f01e22fca80 Options.max_background_flushes: -1
+2021/03/14-07:11:59.609294 7f01e22fca80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:11:59.609295 7f01e22fca80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:11:59.609296 7f01e22fca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:11:59.609298 7f01e22fca80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:11:59.609299 7f01e22fca80 Options.advise_random_on_open: 1
+2021/03/14-07:11:59.609300 7f01e22fca80 Options.db_write_buffer_size: 0
+2021/03/14-07:11:59.609301 7f01e22fca80 Options.write_buffer_manager: 0x2534b90
+2021/03/14-07:11:59.609302 7f01e22fca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:11:59.609304 7f01e22fca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:11:59.609305 7f01e22fca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:11:59.609306 7f01e22fca80 Options.use_adaptive_mutex: 0
+2021/03/14-07:11:59.609307 7f01e22fca80 Options.rate_limiter: (nil)
+2021/03/14-07:11:59.609310 7f01e22fca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:11:59.609325 7f01e22fca80 Options.wal_recovery_mode: 2
+2021/03/14-07:11:59.609327 7f01e22fca80 Options.enable_thread_tracking: 0
+2021/03/14-07:11:59.609328 7f01e22fca80 Options.enable_pipelined_write: 0
+2021/03/14-07:11:59.609329 7f01e22fca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:11:59.609330 7f01e22fca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:11:59.609331 7f01e22fca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:11:59.609332 7f01e22fca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:11:59.609333 7f01e22fca80 Options.row_cache: None
+2021/03/14-07:11:59.609334 7f01e22fca80 Options.wal_filter: None
+2021/03/14-07:11:59.609336 7f01e22fca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:11:59.609337 7f01e22fca80 Options.allow_ingest_behind: 0
+2021/03/14-07:11:59.609338 7f01e22fca80 Options.preserve_deletes: 0
+2021/03/14-07:11:59.609339 7f01e22fca80 Options.two_write_queues: 0
+2021/03/14-07:11:59.609340 7f01e22fca80 Options.manual_wal_flush: 0
+2021/03/14-07:11:59.609342 7f01e22fca80 Options.max_background_jobs: 16
+2021/03/14-07:11:59.609343 7f01e22fca80 Options.max_background_compactions: -1
+2021/03/14-07:11:59.609344 7f01e22fca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:11:59.609345 7f01e22fca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:11:59.609347 7f01e22fca80 Options.delayed_write_rate : 16777216
+2021/03/14-07:11:59.609348 7f01e22fca80 Options.max_total_wal_size: 0
+2021/03/14-07:11:59.609349 7f01e22fca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:11:59.609350 7f01e22fca80 Options.stats_dump_period_sec: 600
+2021/03/14-07:11:59.609351 7f01e22fca80 Options.max_open_files: -1
+2021/03/14-07:11:59.609352 7f01e22fca80 Options.bytes_per_sync: 0
+2021/03/14-07:11:59.609353 7f01e22fca80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:11:59.609354 7f01e22fca80 Options.compaction_readahead_size: 0
+2021/03/14-07:11:59.609355 7f01e22fca80 Compression algorithms supported:
+2021/03/14-07:11:59.609356 7f01e22fca80 Snappy supported: 1
+2021/03/14-07:11:59.609358 7f01e22fca80 Zlib supported: 1
+2021/03/14-07:11:59.609359 7f01e22fca80 Bzip supported: 1
+2021/03/14-07:11:59.609360 7f01e22fca80 LZ4 supported: 1
+2021/03/14-07:11:59.609361 7f01e22fca80 ZSTDNotFinal supported: 1
+2021/03/14-07:11:59.609368 7f01e22fca80 ZSTD supported: 1
+2021/03/14-07:11:59.609373 7f01e22fca80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:11:59.609376 7f01e22fca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:11:59.609558 7f01e22fca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:11:59.609688 7f01e22fca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:11:59.609694 7f01e22fca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:11:59.609696 7f01e22fca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:11:59.609697 7f01e22fca80 Options.compaction_filter: None
+2021/03/14-07:11:59.609700 7f01e22fca80 Options.compaction_filter_factory: None
+2021/03/14-07:11:59.609701 7f01e22fca80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:11:59.609703 7f01e22fca80 Options.table_factory: BlockBasedTable
+2021/03/14-07:11:59.609727 7f01e22fca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2544520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2529c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:11:59.609729 7f01e22fca80 Options.write_buffer_size: 134217728
+2021/03/14-07:11:59.609730 7f01e22fca80 Options.max_write_buffer_number: 6
+2021/03/14-07:11:59.609731 7f01e22fca80 Options.compression[0]: NoCompression
+2021/03/14-07:11:59.609733 7f01e22fca80 Options.compression[1]: NoCompression
+2021/03/14-07:11:59.609734 7f01e22fca80 Options.compression[2]: Snappy
+2021/03/14-07:11:59.609735 7f01e22fca80 Options.compression[3]: Snappy
+2021/03/14-07:11:59.609737 7f01e22fca80 Options.compression[4]: Snappy
+2021/03/14-07:11:59.609738 7f01e22fca80 Options.compression[5]: Snappy
+2021/03/14-07:11:59.609741 7f01e22fca80 Options.compression[6]: Snappy
+2021/03/14-07:11:59.609742 7f01e22fca80 Options.bottommost_compression: Disabled
+2021/03/14-07:11:59.609743 7f01e22fca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:11:59.609745 7f01e22fca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:11:59.609748 7f01e22fca80 Options.num_levels: 7
+2021/03/14-07:11:59.609749 7f01e22fca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:11:59.609750 7f01e22fca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:11:59.609751 7f01e22fca80 Options.compression_opts.window_bits: -14
+2021/03/14-07:11:59.609753 7f01e22fca80 Options.compression_opts.level: -1
+2021/03/14-07:11:59.609756 7f01e22fca80 Options.compression_opts.strategy: 0
+2021/03/14-07:11:59.609757 7f01e22fca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:11:59.609758 7f01e22fca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:11:59.609759 7f01e22fca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:11:59.609762 7f01e22fca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:11:59.609764 7f01e22fca80 Options.target_file_size_base: 67108864
+2021/03/14-07:11:59.609765 7f01e22fca80 Options.target_file_size_multiplier: 1
+2021/03/14-07:11:59.609768 7f01e22fca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:11:59.609769 7f01e22fca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:11:59.609772 7f01e22fca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:11:59.609777 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:11:59.609794 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:11:59.609796 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:11:59.609797 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:11:59.609801 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:11:59.609802 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:11:59.609803 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:11:59.609806 7f01e22fca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:11:59.609807 7f01e22fca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:11:59.609809 7f01e22fca80 Options.arena_block_size: 16777216
+2021/03/14-07:11:59.609812 7f01e22fca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:11:59.609813 7f01e22fca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:11:59.609814 7f01e22fca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:11:59.609815 7f01e22fca80 Options.disable_auto_compactions: 0
+2021/03/14-07:11:59.609819 7f01e22fca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:11:59.609821 7f01e22fca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:11:59.609822 7f01e22fca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:11:59.609825 7f01e22fca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:11:59.609827 7f01e22fca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:11:59.609828 7f01e22fca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:11:59.609829 7f01e22fca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:11:59.609831 7f01e22fca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:11:59.609832 7f01e22fca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:11:59.609833 7f01e22fca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:11:59.609835 7f01e22fca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:11:59.609836 7f01e22fca80 Options.table_properties_collectors:
+2021/03/14-07:11:59.609837 7f01e22fca80 Options.inplace_update_support: 0
+2021/03/14-07:11:59.609839 7f01e22fca80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:11:59.609840 7f01e22fca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:11:59.609842 7f01e22fca80 Options.memtable_huge_page_size: 0
+2021/03/14-07:11:59.609843 7f01e22fca80 Options.bloom_locality: 0
+2021/03/14-07:11:59.609844 7f01e22fca80 Options.max_successive_merges: 0
+2021/03/14-07:11:59.609845 7f01e22fca80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:11:59.609846 7f01e22fca80 Options.paranoid_file_checks: 0
+2021/03/14-07:11:59.609847 7f01e22fca80 Options.force_consistency_checks: 0
+2021/03/14-07:11:59.609849 7f01e22fca80 Options.report_bg_io_stats: 0
+2021/03/14-07:11:59.610445 7f01e22fca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:11:59.610449 7f01e22fca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:11:59.610702 7f01e22fca80 EVENT_LOG_v1 {"time_micros": 1615702319610685, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:11:59.610712 7f01e22fca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:12:00.358624 7f01e22fca80 EVENT_LOG_v1 {"time_micros": 1615702320358620, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702321129732 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702321129732
new file mode 100644
index 0000000..90c4e6b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702321129732
@@ -0,0 +1,186 @@
+2021/03/14-07:12:00.371532 7f01e22fca80 RocksDB version: 5.11.3
+2021/03/14-07:12:00.371588 7f01e22fca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:12:00.371590 7f01e22fca80 Compile date Mar 13 2021
+2021/03/14-07:12:00.371593 7f01e22fca80 DB SUMMARY
+2021/03/14-07:12:00.371736 7f01e22fca80 CURRENT file: CURRENT
+2021/03/14-07:12:00.371737 7f01e22fca80 IDENTITY file: IDENTITY
+2021/03/14-07:12:00.371751 7f01e22fca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:12:00.371752 7f01e22fca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:12:00.371753 7f01e22fca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:12:00.371758 7f01e22fca80 Options.error_if_exists: 0
+2021/03/14-07:12:00.371759 7f01e22fca80 Options.create_if_missing: 1
+2021/03/14-07:12:00.371760 7f01e22fca80 Options.paranoid_checks: 1
+2021/03/14-07:12:00.371760 7f01e22fca80 Options.env: 0x7f01e2cb6080
+2021/03/14-07:12:00.371761 7f01e22fca80 Options.info_log: 0x254cca0
+2021/03/14-07:12:00.371762 7f01e22fca80 Options.max_file_opening_threads: 16
+2021/03/14-07:12:00.371762 7f01e22fca80 Options.statistics: (nil)
+2021/03/14-07:12:00.371763 7f01e22fca80 Options.use_fsync: 0
+2021/03/14-07:12:00.371763 7f01e22fca80 Options.max_log_file_size: 0
+2021/03/14-07:12:00.371764 7f01e22fca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:12:00.371765 7f01e22fca80 Options.log_file_time_to_roll: 0
+2021/03/14-07:12:00.371765 7f01e22fca80 Options.keep_log_file_num: 1000
+2021/03/14-07:12:00.371766 7f01e22fca80 Options.recycle_log_file_num: 0
+2021/03/14-07:12:00.371767 7f01e22fca80 Options.allow_fallocate: 1
+2021/03/14-07:12:00.371767 7f01e22fca80 Options.allow_mmap_reads: 0
+2021/03/14-07:12:00.371768 7f01e22fca80 Options.allow_mmap_writes: 0
+2021/03/14-07:12:00.371768 7f01e22fca80 Options.use_direct_reads: 0
+2021/03/14-07:12:00.371769 7f01e22fca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:12:00.371769 7f01e22fca80 Options.create_missing_column_families: 0
+2021/03/14-07:12:00.371770 7f01e22fca80 Options.db_log_dir:
+2021/03/14-07:12:00.371771 7f01e22fca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:12:00.371771 7f01e22fca80 Options.table_cache_numshardbits: 6
+2021/03/14-07:12:00.371772 7f01e22fca80 Options.max_subcompactions: 1
+2021/03/14-07:12:00.371772 7f01e22fca80 Options.max_background_flushes: -1
+2021/03/14-07:12:00.371773 7f01e22fca80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:12:00.371774 7f01e22fca80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:12:00.371774 7f01e22fca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:12:00.371775 7f01e22fca80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:12:00.371775 7f01e22fca80 Options.advise_random_on_open: 1
+2021/03/14-07:12:00.371776 7f01e22fca80 Options.db_write_buffer_size: 0
+2021/03/14-07:12:00.371776 7f01e22fca80 Options.write_buffer_manager: 0x2534b90
+2021/03/14-07:12:00.371777 7f01e22fca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:12:00.371778 7f01e22fca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:12:00.371778 7f01e22fca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:12:00.371779 7f01e22fca80 Options.use_adaptive_mutex: 0
+2021/03/14-07:12:00.371779 7f01e22fca80 Options.rate_limiter: (nil)
+2021/03/14-07:12:00.371781 7f01e22fca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:12:00.371788 7f01e22fca80 Options.wal_recovery_mode: 2
+2021/03/14-07:12:00.371789 7f01e22fca80 Options.enable_thread_tracking: 0
+2021/03/14-07:12:00.371789 7f01e22fca80 Options.enable_pipelined_write: 0
+2021/03/14-07:12:00.371790 7f01e22fca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:12:00.371791 7f01e22fca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:12:00.371791 7f01e22fca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:12:00.371792 7f01e22fca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:12:00.371792 7f01e22fca80 Options.row_cache: None
+2021/03/14-07:12:00.371793 7f01e22fca80 Options.wal_filter: None
+2021/03/14-07:12:00.371794 7f01e22fca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:12:00.371794 7f01e22fca80 Options.allow_ingest_behind: 0
+2021/03/14-07:12:00.371795 7f01e22fca80 Options.preserve_deletes: 0
+2021/03/14-07:12:00.371795 7f01e22fca80 Options.two_write_queues: 0
+2021/03/14-07:12:00.371796 7f01e22fca80 Options.manual_wal_flush: 0
+2021/03/14-07:12:00.371797 7f01e22fca80 Options.max_background_jobs: 16
+2021/03/14-07:12:00.371798 7f01e22fca80 Options.max_background_compactions: -1
+2021/03/14-07:12:00.371798 7f01e22fca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:12:00.371799 7f01e22fca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:12:00.371799 7f01e22fca80 Options.delayed_write_rate : 16777216
+2021/03/14-07:12:00.371800 7f01e22fca80 Options.max_total_wal_size: 0
+2021/03/14-07:12:00.371801 7f01e22fca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:12:00.371801 7f01e22fca80 Options.stats_dump_period_sec: 600
+2021/03/14-07:12:00.371802 7f01e22fca80 Options.max_open_files: -1
+2021/03/14-07:12:00.371802 7f01e22fca80 Options.bytes_per_sync: 0
+2021/03/14-07:12:00.371803 7f01e22fca80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:12:00.371803 7f01e22fca80 Options.compaction_readahead_size: 0
+2021/03/14-07:12:00.371804 7f01e22fca80 Compression algorithms supported:
+2021/03/14-07:12:00.371805 7f01e22fca80 Snappy supported: 1
+2021/03/14-07:12:00.371805 7f01e22fca80 Zlib supported: 1
+2021/03/14-07:12:00.371806 7f01e22fca80 Bzip supported: 1
+2021/03/14-07:12:00.371806 7f01e22fca80 LZ4 supported: 1
+2021/03/14-07:12:00.371807 7f01e22fca80 ZSTDNotFinal supported: 1
+2021/03/14-07:12:00.371811 7f01e22fca80 ZSTD supported: 1
+2021/03/14-07:12:00.371814 7f01e22fca80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:12:00.371816 7f01e22fca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:12:00.371926 7f01e22fca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:12:00.371982 7f01e22fca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:12:00.371984 7f01e22fca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:12:00.371985 7f01e22fca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:12:00.371985 7f01e22fca80 Options.compaction_filter: None
+2021/03/14-07:12:00.371986 7f01e22fca80 Options.compaction_filter_factory: None
+2021/03/14-07:12:00.371987 7f01e22fca80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:12:00.371987 7f01e22fca80 Options.table_factory: BlockBasedTable
+2021/03/14-07:12:00.372000 7f01e22fca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2544520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2529c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:12:00.372001 7f01e22fca80 Options.write_buffer_size: 134217728
+2021/03/14-07:12:00.372002 7f01e22fca80 Options.max_write_buffer_number: 6
+2021/03/14-07:12:00.372002 7f01e22fca80 Options.compression[0]: NoCompression
+2021/03/14-07:12:00.372003 7f01e22fca80 Options.compression[1]: NoCompression
+2021/03/14-07:12:00.372004 7f01e22fca80 Options.compression[2]: Snappy
+2021/03/14-07:12:00.372004 7f01e22fca80 Options.compression[3]: Snappy
+2021/03/14-07:12:00.372005 7f01e22fca80 Options.compression[4]: Snappy
+2021/03/14-07:12:00.372005 7f01e22fca80 Options.compression[5]: Snappy
+2021/03/14-07:12:00.372006 7f01e22fca80 Options.compression[6]: Snappy
+2021/03/14-07:12:00.372007 7f01e22fca80 Options.bottommost_compression: Disabled
+2021/03/14-07:12:00.372007 7f01e22fca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:12:00.372008 7f01e22fca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:12:00.372008 7f01e22fca80 Options.num_levels: 7
+2021/03/14-07:12:00.372009 7f01e22fca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:12:00.372010 7f01e22fca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:12:00.372010 7f01e22fca80 Options.compression_opts.window_bits: -14
+2021/03/14-07:12:00.372011 7f01e22fca80 Options.compression_opts.level: -1
+2021/03/14-07:12:00.372011 7f01e22fca80 Options.compression_opts.strategy: 0
+2021/03/14-07:12:00.372012 7f01e22fca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:12:00.372012 7f01e22fca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:12:00.372013 7f01e22fca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:12:00.372014 7f01e22fca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:12:00.372014 7f01e22fca80 Options.target_file_size_base: 67108864
+2021/03/14-07:12:00.372015 7f01e22fca80 Options.target_file_size_multiplier: 1
+2021/03/14-07:12:00.372016 7f01e22fca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:12:00.372016 7f01e22fca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:12:00.372017 7f01e22fca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:12:00.372018 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:12:00.372026 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:12:00.372027 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:12:00.372027 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:12:00.372028 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:12:00.372028 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:12:00.372029 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:12:00.372029 7f01e22fca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:12:00.372030 7f01e22fca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:12:00.372031 7f01e22fca80 Options.arena_block_size: 16777216
+2021/03/14-07:12:00.372031 7f01e22fca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:12:00.372032 7f01e22fca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:12:00.372032 7f01e22fca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:12:00.372033 7f01e22fca80 Options.disable_auto_compactions: 0
+2021/03/14-07:12:00.372035 7f01e22fca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:12:00.372035 7f01e22fca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:12:00.372036 7f01e22fca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:12:00.372037 7f01e22fca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:12:00.372037 7f01e22fca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:12:00.372038 7f01e22fca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:12:00.372038 7f01e22fca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:12:00.372039 7f01e22fca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:12:00.372040 7f01e22fca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:12:00.372041 7f01e22fca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:12:00.372041 7f01e22fca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:12:00.372042 7f01e22fca80 Options.table_properties_collectors:
+2021/03/14-07:12:00.372042 7f01e22fca80 Options.inplace_update_support: 0
+2021/03/14-07:12:00.372043 7f01e22fca80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:12:00.372044 7f01e22fca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:12:00.372044 7f01e22fca80 Options.memtable_huge_page_size: 0
+2021/03/14-07:12:00.372045 7f01e22fca80 Options.bloom_locality: 0
+2021/03/14-07:12:00.372046 7f01e22fca80 Options.max_successive_merges: 0
+2021/03/14-07:12:00.372046 7f01e22fca80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:12:00.372047 7f01e22fca80 Options.paranoid_file_checks: 0
+2021/03/14-07:12:00.372047 7f01e22fca80 Options.force_consistency_checks: 0
+2021/03/14-07:12:00.372048 7f01e22fca80 Options.report_bg_io_stats: 0
+2021/03/14-07:12:00.372431 7f01e22fca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:12:00.372434 7f01e22fca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:12:00.372582 7f01e22fca80 EVENT_LOG_v1 {"time_micros": 1615702320372572, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:12:00.372587 7f01e22fca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:12:01.116858 7f01e22fca80 EVENT_LOG_v1 {"time_micros": 1615702321116855, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702321853037 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702321853037
new file mode 100644
index 0000000..fbdbfe1
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702321853037
@@ -0,0 +1,186 @@
+2021/03/14-07:12:01.130171 7f01e22fca80 RocksDB version: 5.11.3
+2021/03/14-07:12:01.130222 7f01e22fca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:12:01.130224 7f01e22fca80 Compile date Mar 13 2021
+2021/03/14-07:12:01.130226 7f01e22fca80 DB SUMMARY
+2021/03/14-07:12:01.130385 7f01e22fca80 CURRENT file: CURRENT
+2021/03/14-07:12:01.130386 7f01e22fca80 IDENTITY file: IDENTITY
+2021/03/14-07:12:01.130400 7f01e22fca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:12:01.130401 7f01e22fca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:12:01.130402 7f01e22fca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:12:01.130407 7f01e22fca80 Options.error_if_exists: 0
+2021/03/14-07:12:01.130408 7f01e22fca80 Options.create_if_missing: 1
+2021/03/14-07:12:01.130409 7f01e22fca80 Options.paranoid_checks: 1
+2021/03/14-07:12:01.130409 7f01e22fca80 Options.env: 0x7f01e2cb6080
+2021/03/14-07:12:01.130410 7f01e22fca80 Options.info_log: 0x254cca0
+2021/03/14-07:12:01.130410 7f01e22fca80 Options.max_file_opening_threads: 16
+2021/03/14-07:12:01.130411 7f01e22fca80 Options.statistics: (nil)
+2021/03/14-07:12:01.130412 7f01e22fca80 Options.use_fsync: 0
+2021/03/14-07:12:01.130412 7f01e22fca80 Options.max_log_file_size: 0
+2021/03/14-07:12:01.130413 7f01e22fca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:12:01.130414 7f01e22fca80 Options.log_file_time_to_roll: 0
+2021/03/14-07:12:01.130414 7f01e22fca80 Options.keep_log_file_num: 1000
+2021/03/14-07:12:01.130415 7f01e22fca80 Options.recycle_log_file_num: 0
+2021/03/14-07:12:01.130415 7f01e22fca80 Options.allow_fallocate: 1
+2021/03/14-07:12:01.130416 7f01e22fca80 Options.allow_mmap_reads: 0
+2021/03/14-07:12:01.130417 7f01e22fca80 Options.allow_mmap_writes: 0
+2021/03/14-07:12:01.130417 7f01e22fca80 Options.use_direct_reads: 0
+2021/03/14-07:12:01.130418 7f01e22fca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:12:01.130418 7f01e22fca80 Options.create_missing_column_families: 0
+2021/03/14-07:12:01.130419 7f01e22fca80 Options.db_log_dir:
+2021/03/14-07:12:01.130419 7f01e22fca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:12:01.130420 7f01e22fca80 Options.table_cache_numshardbits: 6
+2021/03/14-07:12:01.130420 7f01e22fca80 Options.max_subcompactions: 1
+2021/03/14-07:12:01.130421 7f01e22fca80 Options.max_background_flushes: -1
+2021/03/14-07:12:01.130422 7f01e22fca80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:12:01.130422 7f01e22fca80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:12:01.130423 7f01e22fca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:12:01.130424 7f01e22fca80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:12:01.130424 7f01e22fca80 Options.advise_random_on_open: 1
+2021/03/14-07:12:01.130425 7f01e22fca80 Options.db_write_buffer_size: 0
+2021/03/14-07:12:01.130425 7f01e22fca80 Options.write_buffer_manager: 0x2534b90
+2021/03/14-07:12:01.130426 7f01e22fca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:12:01.130426 7f01e22fca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:12:01.130427 7f01e22fca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:12:01.130428 7f01e22fca80 Options.use_adaptive_mutex: 0
+2021/03/14-07:12:01.130428 7f01e22fca80 Options.rate_limiter: (nil)
+2021/03/14-07:12:01.130429 7f01e22fca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:12:01.130438 7f01e22fca80 Options.wal_recovery_mode: 2
+2021/03/14-07:12:01.130439 7f01e22fca80 Options.enable_thread_tracking: 0
+2021/03/14-07:12:01.130439 7f01e22fca80 Options.enable_pipelined_write: 0
+2021/03/14-07:12:01.130440 7f01e22fca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:12:01.130440 7f01e22fca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:12:01.130441 7f01e22fca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:12:01.130441 7f01e22fca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:12:01.130442 7f01e22fca80 Options.row_cache: None
+2021/03/14-07:12:01.130442 7f01e22fca80 Options.wal_filter: None
+2021/03/14-07:12:01.130443 7f01e22fca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:12:01.130444 7f01e22fca80 Options.allow_ingest_behind: 0
+2021/03/14-07:12:01.130444 7f01e22fca80 Options.preserve_deletes: 0
+2021/03/14-07:12:01.130445 7f01e22fca80 Options.two_write_queues: 0
+2021/03/14-07:12:01.130445 7f01e22fca80 Options.manual_wal_flush: 0
+2021/03/14-07:12:01.130447 7f01e22fca80 Options.max_background_jobs: 16
+2021/03/14-07:12:01.130447 7f01e22fca80 Options.max_background_compactions: -1
+2021/03/14-07:12:01.130448 7f01e22fca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:12:01.130449 7f01e22fca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:12:01.130449 7f01e22fca80 Options.delayed_write_rate : 16777216
+2021/03/14-07:12:01.130450 7f01e22fca80 Options.max_total_wal_size: 0
+2021/03/14-07:12:01.130450 7f01e22fca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:12:01.130451 7f01e22fca80 Options.stats_dump_period_sec: 600
+2021/03/14-07:12:01.130452 7f01e22fca80 Options.max_open_files: -1
+2021/03/14-07:12:01.130452 7f01e22fca80 Options.bytes_per_sync: 0
+2021/03/14-07:12:01.130453 7f01e22fca80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:12:01.130453 7f01e22fca80 Options.compaction_readahead_size: 0
+2021/03/14-07:12:01.130454 7f01e22fca80 Compression algorithms supported:
+2021/03/14-07:12:01.130454 7f01e22fca80 Snappy supported: 1
+2021/03/14-07:12:01.130455 7f01e22fca80 Zlib supported: 1
+2021/03/14-07:12:01.130456 7f01e22fca80 Bzip supported: 1
+2021/03/14-07:12:01.130456 7f01e22fca80 LZ4 supported: 1
+2021/03/14-07:12:01.130457 7f01e22fca80 ZSTDNotFinal supported: 1
+2021/03/14-07:12:01.130461 7f01e22fca80 ZSTD supported: 1
+2021/03/14-07:12:01.130464 7f01e22fca80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:12:01.130466 7f01e22fca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:12:01.130557 7f01e22fca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:12:01.130612 7f01e22fca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:12:01.130613 7f01e22fca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:12:01.130614 7f01e22fca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:12:01.130615 7f01e22fca80 Options.compaction_filter: None
+2021/03/14-07:12:01.130615 7f01e22fca80 Options.compaction_filter_factory: None
+2021/03/14-07:12:01.130616 7f01e22fca80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:12:01.130617 7f01e22fca80 Options.table_factory: BlockBasedTable
+2021/03/14-07:12:01.130630 7f01e22fca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2544520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2529c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:12:01.130631 7f01e22fca80 Options.write_buffer_size: 134217728
+2021/03/14-07:12:01.130631 7f01e22fca80 Options.max_write_buffer_number: 6
+2021/03/14-07:12:01.130632 7f01e22fca80 Options.compression[0]: NoCompression
+2021/03/14-07:12:01.130633 7f01e22fca80 Options.compression[1]: NoCompression
+2021/03/14-07:12:01.130634 7f01e22fca80 Options.compression[2]: Snappy
+2021/03/14-07:12:01.130634 7f01e22fca80 Options.compression[3]: Snappy
+2021/03/14-07:12:01.130635 7f01e22fca80 Options.compression[4]: Snappy
+2021/03/14-07:12:01.130635 7f01e22fca80 Options.compression[5]: Snappy
+2021/03/14-07:12:01.130636 7f01e22fca80 Options.compression[6]: Snappy
+2021/03/14-07:12:01.130637 7f01e22fca80 Options.bottommost_compression: Disabled
+2021/03/14-07:12:01.130637 7f01e22fca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:12:01.130638 7f01e22fca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:12:01.130639 7f01e22fca80 Options.num_levels: 7
+2021/03/14-07:12:01.130639 7f01e22fca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:12:01.130640 7f01e22fca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:12:01.130640 7f01e22fca80 Options.compression_opts.window_bits: -14
+2021/03/14-07:12:01.130641 7f01e22fca80 Options.compression_opts.level: -1
+2021/03/14-07:12:01.130642 7f01e22fca80 Options.compression_opts.strategy: 0
+2021/03/14-07:12:01.130642 7f01e22fca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:12:01.130643 7f01e22fca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:12:01.130643 7f01e22fca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:12:01.130644 7f01e22fca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:12:01.130644 7f01e22fca80 Options.target_file_size_base: 67108864
+2021/03/14-07:12:01.130645 7f01e22fca80 Options.target_file_size_multiplier: 1
+2021/03/14-07:12:01.130646 7f01e22fca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:12:01.130646 7f01e22fca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:12:01.130647 7f01e22fca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:12:01.130649 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:12:01.130656 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:12:01.130657 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:12:01.130658 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:12:01.130658 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:12:01.130659 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:12:01.130659 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:12:01.130660 7f01e22fca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:12:01.130661 7f01e22fca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:12:01.130661 7f01e22fca80 Options.arena_block_size: 16777216
+2021/03/14-07:12:01.130662 7f01e22fca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:12:01.130662 7f01e22fca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:12:01.130663 7f01e22fca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:12:01.130664 7f01e22fca80 Options.disable_auto_compactions: 0
+2021/03/14-07:12:01.130665 7f01e22fca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:12:01.130666 7f01e22fca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:12:01.130667 7f01e22fca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:12:01.130667 7f01e22fca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:12:01.130668 7f01e22fca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:12:01.130668 7f01e22fca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:12:01.130669 7f01e22fca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:12:01.130670 7f01e22fca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:12:01.130671 7f01e22fca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:12:01.130671 7f01e22fca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:12:01.130672 7f01e22fca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:12:01.130673 7f01e22fca80 Options.table_properties_collectors:
+2021/03/14-07:12:01.130673 7f01e22fca80 Options.inplace_update_support: 0
+2021/03/14-07:12:01.130674 7f01e22fca80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:12:01.130674 7f01e22fca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:12:01.130675 7f01e22fca80 Options.memtable_huge_page_size: 0
+2021/03/14-07:12:01.130676 7f01e22fca80 Options.bloom_locality: 0
+2021/03/14-07:12:01.130677 7f01e22fca80 Options.max_successive_merges: 0
+2021/03/14-07:12:01.130677 7f01e22fca80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:12:01.130678 7f01e22fca80 Options.paranoid_file_checks: 0
+2021/03/14-07:12:01.130678 7f01e22fca80 Options.force_consistency_checks: 0
+2021/03/14-07:12:01.130679 7f01e22fca80 Options.report_bg_io_stats: 0
+2021/03/14-07:12:01.131070 7f01e22fca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:12:01.131072 7f01e22fca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:12:01.131217 7f01e22fca80 EVENT_LOG_v1 {"time_micros": 1615702321131207, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:12:01.131222 7f01e22fca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:12:01.840446 7f01e22fca80 EVENT_LOG_v1 {"time_micros": 1615702321840443, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702396022998 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702396022998
new file mode 100644
index 0000000..bd0e080
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702396022998
@@ -0,0 +1,186 @@
+2021/03/14-07:12:01.853441 7f01e22fca80 RocksDB version: 5.11.3
+2021/03/14-07:12:01.853496 7f01e22fca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:12:01.853498 7f01e22fca80 Compile date Mar 13 2021
+2021/03/14-07:12:01.853500 7f01e22fca80 DB SUMMARY
+2021/03/14-07:12:01.853644 7f01e22fca80 CURRENT file: CURRENT
+2021/03/14-07:12:01.853645 7f01e22fca80 IDENTITY file: IDENTITY
+2021/03/14-07:12:01.853659 7f01e22fca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:12:01.853660 7f01e22fca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:12:01.853661 7f01e22fca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:12:01.853666 7f01e22fca80 Options.error_if_exists: 0
+2021/03/14-07:12:01.853666 7f01e22fca80 Options.create_if_missing: 1
+2021/03/14-07:12:01.853667 7f01e22fca80 Options.paranoid_checks: 1
+2021/03/14-07:12:01.853668 7f01e22fca80 Options.env: 0x7f01e2cb6080
+2021/03/14-07:12:01.853668 7f01e22fca80 Options.info_log: 0x254cca0
+2021/03/14-07:12:01.853669 7f01e22fca80 Options.max_file_opening_threads: 16
+2021/03/14-07:12:01.853669 7f01e22fca80 Options.statistics: (nil)
+2021/03/14-07:12:01.853670 7f01e22fca80 Options.use_fsync: 0
+2021/03/14-07:12:01.853671 7f01e22fca80 Options.max_log_file_size: 0
+2021/03/14-07:12:01.853671 7f01e22fca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:12:01.853672 7f01e22fca80 Options.log_file_time_to_roll: 0
+2021/03/14-07:12:01.853672 7f01e22fca80 Options.keep_log_file_num: 1000
+2021/03/14-07:12:01.853673 7f01e22fca80 Options.recycle_log_file_num: 0
+2021/03/14-07:12:01.853674 7f01e22fca80 Options.allow_fallocate: 1
+2021/03/14-07:12:01.853674 7f01e22fca80 Options.allow_mmap_reads: 0
+2021/03/14-07:12:01.853675 7f01e22fca80 Options.allow_mmap_writes: 0
+2021/03/14-07:12:01.853675 7f01e22fca80 Options.use_direct_reads: 0
+2021/03/14-07:12:01.853676 7f01e22fca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:12:01.853676 7f01e22fca80 Options.create_missing_column_families: 0
+2021/03/14-07:12:01.853677 7f01e22fca80 Options.db_log_dir:
+2021/03/14-07:12:01.853678 7f01e22fca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:12:01.853678 7f01e22fca80 Options.table_cache_numshardbits: 6
+2021/03/14-07:12:01.853679 7f01e22fca80 Options.max_subcompactions: 1
+2021/03/14-07:12:01.853679 7f01e22fca80 Options.max_background_flushes: -1
+2021/03/14-07:12:01.853680 7f01e22fca80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:12:01.853681 7f01e22fca80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:12:01.853681 7f01e22fca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:12:01.853682 7f01e22fca80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:12:01.853682 7f01e22fca80 Options.advise_random_on_open: 1
+2021/03/14-07:12:01.853683 7f01e22fca80 Options.db_write_buffer_size: 0
+2021/03/14-07:12:01.853683 7f01e22fca80 Options.write_buffer_manager: 0x2534b90
+2021/03/14-07:12:01.853684 7f01e22fca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:12:01.853685 7f01e22fca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:12:01.853685 7f01e22fca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:12:01.853686 7f01e22fca80 Options.use_adaptive_mutex: 0
+2021/03/14-07:12:01.853686 7f01e22fca80 Options.rate_limiter: (nil)
+2021/03/14-07:12:01.853688 7f01e22fca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:12:01.853695 7f01e22fca80 Options.wal_recovery_mode: 2
+2021/03/14-07:12:01.853696 7f01e22fca80 Options.enable_thread_tracking: 0
+2021/03/14-07:12:01.853697 7f01e22fca80 Options.enable_pipelined_write: 0
+2021/03/14-07:12:01.853697 7f01e22fca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:12:01.853698 7f01e22fca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:12:01.853698 7f01e22fca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:12:01.853699 7f01e22fca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:12:01.853700 7f01e22fca80 Options.row_cache: None
+2021/03/14-07:12:01.853700 7f01e22fca80 Options.wal_filter: None
+2021/03/14-07:12:01.853701 7f01e22fca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:12:01.853701 7f01e22fca80 Options.allow_ingest_behind: 0
+2021/03/14-07:12:01.853702 7f01e22fca80 Options.preserve_deletes: 0
+2021/03/14-07:12:01.853702 7f01e22fca80 Options.two_write_queues: 0
+2021/03/14-07:12:01.853703 7f01e22fca80 Options.manual_wal_flush: 0
+2021/03/14-07:12:01.853704 7f01e22fca80 Options.max_background_jobs: 16
+2021/03/14-07:12:01.853705 7f01e22fca80 Options.max_background_compactions: -1
+2021/03/14-07:12:01.853705 7f01e22fca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:12:01.853706 7f01e22fca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:12:01.853706 7f01e22fca80 Options.delayed_write_rate : 16777216
+2021/03/14-07:12:01.853707 7f01e22fca80 Options.max_total_wal_size: 0
+2021/03/14-07:12:01.853708 7f01e22fca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:12:01.853708 7f01e22fca80 Options.stats_dump_period_sec: 600
+2021/03/14-07:12:01.853709 7f01e22fca80 Options.max_open_files: -1
+2021/03/14-07:12:01.853710 7f01e22fca80 Options.bytes_per_sync: 0
+2021/03/14-07:12:01.853710 7f01e22fca80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:12:01.853711 7f01e22fca80 Options.compaction_readahead_size: 0
+2021/03/14-07:12:01.853711 7f01e22fca80 Compression algorithms supported:
+2021/03/14-07:12:01.853712 7f01e22fca80 Snappy supported: 1
+2021/03/14-07:12:01.853712 7f01e22fca80 Zlib supported: 1
+2021/03/14-07:12:01.853713 7f01e22fca80 Bzip supported: 1
+2021/03/14-07:12:01.853714 7f01e22fca80 LZ4 supported: 1
+2021/03/14-07:12:01.853714 7f01e22fca80 ZSTDNotFinal supported: 1
+2021/03/14-07:12:01.853718 7f01e22fca80 ZSTD supported: 1
+2021/03/14-07:12:01.853721 7f01e22fca80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:12:01.853723 7f01e22fca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:12:01.853817 7f01e22fca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:12:01.853872 7f01e22fca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:12:01.853874 7f01e22fca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:12:01.853874 7f01e22fca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:12:01.853875 7f01e22fca80 Options.compaction_filter: None
+2021/03/14-07:12:01.853876 7f01e22fca80 Options.compaction_filter_factory: None
+2021/03/14-07:12:01.853876 7f01e22fca80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:12:01.853877 7f01e22fca80 Options.table_factory: BlockBasedTable
+2021/03/14-07:12:01.853890 7f01e22fca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2544520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2529c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:12:01.853891 7f01e22fca80 Options.write_buffer_size: 134217728
+2021/03/14-07:12:01.853891 7f01e22fca80 Options.max_write_buffer_number: 6
+2021/03/14-07:12:01.853892 7f01e22fca80 Options.compression[0]: NoCompression
+2021/03/14-07:12:01.853892 7f01e22fca80 Options.compression[1]: NoCompression
+2021/03/14-07:12:01.853893 7f01e22fca80 Options.compression[2]: Snappy
+2021/03/14-07:12:01.853894 7f01e22fca80 Options.compression[3]: Snappy
+2021/03/14-07:12:01.853894 7f01e22fca80 Options.compression[4]: Snappy
+2021/03/14-07:12:01.853895 7f01e22fca80 Options.compression[5]: Snappy
+2021/03/14-07:12:01.853895 7f01e22fca80 Options.compression[6]: Snappy
+2021/03/14-07:12:01.853896 7f01e22fca80 Options.bottommost_compression: Disabled
+2021/03/14-07:12:01.853897 7f01e22fca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:12:01.853897 7f01e22fca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:12:01.853898 7f01e22fca80 Options.num_levels: 7
+2021/03/14-07:12:01.853899 7f01e22fca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:12:01.853899 7f01e22fca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:12:01.853900 7f01e22fca80 Options.compression_opts.window_bits: -14
+2021/03/14-07:12:01.853900 7f01e22fca80 Options.compression_opts.level: -1
+2021/03/14-07:12:01.853901 7f01e22fca80 Options.compression_opts.strategy: 0
+2021/03/14-07:12:01.853902 7f01e22fca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:12:01.853902 7f01e22fca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:12:01.853903 7f01e22fca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:12:01.853903 7f01e22fca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:12:01.853904 7f01e22fca80 Options.target_file_size_base: 67108864
+2021/03/14-07:12:01.853904 7f01e22fca80 Options.target_file_size_multiplier: 1
+2021/03/14-07:12:01.853905 7f01e22fca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:12:01.853906 7f01e22fca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:12:01.853906 7f01e22fca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:12:01.853908 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:12:01.853916 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:12:01.853916 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:12:01.853917 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:12:01.853918 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:12:01.853918 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:12:01.853919 7f01e22fca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:12:01.853919 7f01e22fca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:12:01.853920 7f01e22fca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:12:01.853920 7f01e22fca80 Options.arena_block_size: 16777216
+2021/03/14-07:12:01.853921 7f01e22fca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:12:01.853922 7f01e22fca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:12:01.853922 7f01e22fca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:12:01.853923 7f01e22fca80 Options.disable_auto_compactions: 0
+2021/03/14-07:12:01.853925 7f01e22fca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:12:01.853925 7f01e22fca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:12:01.853926 7f01e22fca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:12:01.853926 7f01e22fca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:12:01.853927 7f01e22fca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:12:01.853928 7f01e22fca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:12:01.853928 7f01e22fca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:12:01.853929 7f01e22fca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:12:01.853930 7f01e22fca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:12:01.853930 7f01e22fca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:12:01.853931 7f01e22fca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:12:01.853932 7f01e22fca80 Options.table_properties_collectors:
+2021/03/14-07:12:01.853932 7f01e22fca80 Options.inplace_update_support: 0
+2021/03/14-07:12:01.853933 7f01e22fca80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:12:01.853933 7f01e22fca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:12:01.853934 7f01e22fca80 Options.memtable_huge_page_size: 0
+2021/03/14-07:12:01.853935 7f01e22fca80 Options.bloom_locality: 0
+2021/03/14-07:12:01.853935 7f01e22fca80 Options.max_successive_merges: 0
+2021/03/14-07:12:01.853936 7f01e22fca80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:12:01.853936 7f01e22fca80 Options.paranoid_file_checks: 0
+2021/03/14-07:12:01.853937 7f01e22fca80 Options.force_consistency_checks: 0
+2021/03/14-07:12:01.853938 7f01e22fca80 Options.report_bg_io_stats: 0
+2021/03/14-07:12:01.854369 7f01e22fca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:12:01.854372 7f01e22fca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:12:01.854524 7f01e22fca80 EVENT_LOG_v1 {"time_micros": 1615702321854514, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:12:01.854530 7f01e22fca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:12:02.566080 7f01e22fca80 EVENT_LOG_v1 {"time_micros": 1615702322566076, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702396803694 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702396803694
new file mode 100644
index 0000000..129dd27
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702396803694
@@ -0,0 +1,186 @@
+2021/03/14-07:13:16.023628 7fa14abf5a80 RocksDB version: 5.11.3
+2021/03/14-07:13:16.023796 7fa14abf5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:13:16.023798 7fa14abf5a80 Compile date Mar 13 2021
+2021/03/14-07:13:16.023806 7fa14abf5a80 DB SUMMARY
+2021/03/14-07:13:16.024023 7fa14abf5a80 CURRENT file: CURRENT
+2021/03/14-07:13:16.024025 7fa14abf5a80 IDENTITY file: IDENTITY
+2021/03/14-07:13:16.024051 7fa14abf5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:13:16.024053 7fa14abf5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:13:16.024055 7fa14abf5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:13:16.024064 7fa14abf5a80 Options.error_if_exists: 0
+2021/03/14-07:13:16.024066 7fa14abf5a80 Options.create_if_missing: 1
+2021/03/14-07:13:16.024068 7fa14abf5a80 Options.paranoid_checks: 1
+2021/03/14-07:13:16.024069 7fa14abf5a80 Options.env: 0x7fa14b5af080
+2021/03/14-07:13:16.024070 7fa14abf5a80 Options.info_log: 0x29c4ca0
+2021/03/14-07:13:16.024072 7fa14abf5a80 Options.max_file_opening_threads: 16
+2021/03/14-07:13:16.024073 7fa14abf5a80 Options.statistics: (nil)
+2021/03/14-07:13:16.024074 7fa14abf5a80 Options.use_fsync: 0
+2021/03/14-07:13:16.024076 7fa14abf5a80 Options.max_log_file_size: 0
+2021/03/14-07:13:16.024077 7fa14abf5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:13:16.024078 7fa14abf5a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:13:16.024079 7fa14abf5a80 Options.keep_log_file_num: 1000
+2021/03/14-07:13:16.024080 7fa14abf5a80 Options.recycle_log_file_num: 0
+2021/03/14-07:13:16.024082 7fa14abf5a80 Options.allow_fallocate: 1
+2021/03/14-07:13:16.024083 7fa14abf5a80 Options.allow_mmap_reads: 0
+2021/03/14-07:13:16.024084 7fa14abf5a80 Options.allow_mmap_writes: 0
+2021/03/14-07:13:16.024084 7fa14abf5a80 Options.use_direct_reads: 0
+2021/03/14-07:13:16.024085 7fa14abf5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:13:16.024086 7fa14abf5a80 Options.create_missing_column_families: 0
+2021/03/14-07:13:16.024088 7fa14abf5a80 Options.db_log_dir:
+2021/03/14-07:13:16.024089 7fa14abf5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:13:16.024090 7fa14abf5a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:13:16.024091 7fa14abf5a80 Options.max_subcompactions: 1
+2021/03/14-07:13:16.024093 7fa14abf5a80 Options.max_background_flushes: -1
+2021/03/14-07:13:16.024094 7fa14abf5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:13:16.024095 7fa14abf5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:13:16.024096 7fa14abf5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:13:16.024097 7fa14abf5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:13:16.024098 7fa14abf5a80 Options.advise_random_on_open: 1
+2021/03/14-07:13:16.024100 7fa14abf5a80 Options.db_write_buffer_size: 0
+2021/03/14-07:13:16.024101 7fa14abf5a80 Options.write_buffer_manager: 0x29acb90
+2021/03/14-07:13:16.024102 7fa14abf5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:13:16.024104 7fa14abf5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:13:16.024105 7fa14abf5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:13:16.024106 7fa14abf5a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:13:16.024107 7fa14abf5a80 Options.rate_limiter: (nil)
+2021/03/14-07:13:16.024110 7fa14abf5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:13:16.024124 7fa14abf5a80 Options.wal_recovery_mode: 2
+2021/03/14-07:13:16.024126 7fa14abf5a80 Options.enable_thread_tracking: 0
+2021/03/14-07:13:16.024127 7fa14abf5a80 Options.enable_pipelined_write: 0
+2021/03/14-07:13:16.024128 7fa14abf5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:13:16.024130 7fa14abf5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:13:16.024131 7fa14abf5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:13:16.024132 7fa14abf5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:13:16.024133 7fa14abf5a80 Options.row_cache: None
+2021/03/14-07:13:16.024135 7fa14abf5a80 Options.wal_filter: None
+2021/03/14-07:13:16.024136 7fa14abf5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:13:16.024138 7fa14abf5a80 Options.allow_ingest_behind: 0
+2021/03/14-07:13:16.024139 7fa14abf5a80 Options.preserve_deletes: 0
+2021/03/14-07:13:16.024140 7fa14abf5a80 Options.two_write_queues: 0
+2021/03/14-07:13:16.024141 7fa14abf5a80 Options.manual_wal_flush: 0
+2021/03/14-07:13:16.024144 7fa14abf5a80 Options.max_background_jobs: 16
+2021/03/14-07:13:16.024145 7fa14abf5a80 Options.max_background_compactions: -1
+2021/03/14-07:13:16.024146 7fa14abf5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:13:16.024148 7fa14abf5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:13:16.024149 7fa14abf5a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:13:16.024150 7fa14abf5a80 Options.max_total_wal_size: 0
+2021/03/14-07:13:16.024151 7fa14abf5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:13:16.024153 7fa14abf5a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:13:16.024154 7fa14abf5a80 Options.max_open_files: -1
+2021/03/14-07:13:16.024156 7fa14abf5a80 Options.bytes_per_sync: 0
+2021/03/14-07:13:16.024157 7fa14abf5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:13:16.024158 7fa14abf5a80 Options.compaction_readahead_size: 0
+2021/03/14-07:13:16.024159 7fa14abf5a80 Compression algorithms supported:
+2021/03/14-07:13:16.024160 7fa14abf5a80 Snappy supported: 1
+2021/03/14-07:13:16.024161 7fa14abf5a80 Zlib supported: 1
+2021/03/14-07:13:16.024163 7fa14abf5a80 Bzip supported: 1
+2021/03/14-07:13:16.024164 7fa14abf5a80 LZ4 supported: 1
+2021/03/14-07:13:16.024165 7fa14abf5a80 ZSTDNotFinal supported: 1
+2021/03/14-07:13:16.024173 7fa14abf5a80 ZSTD supported: 1
+2021/03/14-07:13:16.024178 7fa14abf5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:13:16.024181 7fa14abf5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:13:16.024371 7fa14abf5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:13:16.024481 7fa14abf5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:13:16.024484 7fa14abf5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:13:16.024486 7fa14abf5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:13:16.024487 7fa14abf5a80 Options.compaction_filter: None
+2021/03/14-07:13:16.024488 7fa14abf5a80 Options.compaction_filter_factory: None
+2021/03/14-07:13:16.024489 7fa14abf5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:13:16.024491 7fa14abf5a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:13:16.024509 7fa14abf5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x29bc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x29a1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:13:16.024510 7fa14abf5a80 Options.write_buffer_size: 134217728
+2021/03/14-07:13:16.024511 7fa14abf5a80 Options.max_write_buffer_number: 6
+2021/03/14-07:13:16.024511 7fa14abf5a80 Options.compression[0]: NoCompression
+2021/03/14-07:13:16.024512 7fa14abf5a80 Options.compression[1]: NoCompression
+2021/03/14-07:13:16.024513 7fa14abf5a80 Options.compression[2]: Snappy
+2021/03/14-07:13:16.024513 7fa14abf5a80 Options.compression[3]: Snappy
+2021/03/14-07:13:16.024514 7fa14abf5a80 Options.compression[4]: Snappy
+2021/03/14-07:13:16.024515 7fa14abf5a80 Options.compression[5]: Snappy
+2021/03/14-07:13:16.024515 7fa14abf5a80 Options.compression[6]: Snappy
+2021/03/14-07:13:16.024516 7fa14abf5a80 Options.bottommost_compression: Disabled
+2021/03/14-07:13:16.024517 7fa14abf5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:13:16.024517 7fa14abf5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:13:16.024518 7fa14abf5a80 Options.num_levels: 7
+2021/03/14-07:13:16.024519 7fa14abf5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:13:16.024519 7fa14abf5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:13:16.024520 7fa14abf5a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:13:16.024520 7fa14abf5a80 Options.compression_opts.level: -1
+2021/03/14-07:13:16.024521 7fa14abf5a80 Options.compression_opts.strategy: 0
+2021/03/14-07:13:16.024522 7fa14abf5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:13:16.024522 7fa14abf5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:13:16.024523 7fa14abf5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:13:16.024524 7fa14abf5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:13:16.024524 7fa14abf5a80 Options.target_file_size_base: 67108864
+2021/03/14-07:13:16.024525 7fa14abf5a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:13:16.024526 7fa14abf5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:13:16.024526 7fa14abf5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:13:16.024527 7fa14abf5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:13:16.024528 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:13:16.024539 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:13:16.024540 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:13:16.024540 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:13:16.024541 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:13:16.024542 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:13:16.024542 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:13:16.024543 7fa14abf5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:13:16.024544 7fa14abf5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:13:16.024544 7fa14abf5a80 Options.arena_block_size: 16777216
+2021/03/14-07:13:16.024545 7fa14abf5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:13:16.024546 7fa14abf5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:13:16.024546 7fa14abf5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:13:16.024547 7fa14abf5a80 Options.disable_auto_compactions: 0
+2021/03/14-07:13:16.024549 7fa14abf5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:13:16.024550 7fa14abf5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:13:16.024550 7fa14abf5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:13:16.024551 7fa14abf5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:13:16.024551 7fa14abf5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:13:16.024552 7fa14abf5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:13:16.024553 7fa14abf5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:13:16.024554 7fa14abf5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:13:16.024554 7fa14abf5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:13:16.024555 7fa14abf5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:13:16.024556 7fa14abf5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:13:16.024556 7fa14abf5a80 Options.table_properties_collectors:
+2021/03/14-07:13:16.024557 7fa14abf5a80 Options.inplace_update_support: 0
+2021/03/14-07:13:16.024558 7fa14abf5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:13:16.024558 7fa14abf5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:13:16.024559 7fa14abf5a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:13:16.024560 7fa14abf5a80 Options.bloom_locality: 0
+2021/03/14-07:13:16.024560 7fa14abf5a80 Options.max_successive_merges: 0
+2021/03/14-07:13:16.024561 7fa14abf5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:13:16.024562 7fa14abf5a80 Options.paranoid_file_checks: 0
+2021/03/14-07:13:16.024562 7fa14abf5a80 Options.force_consistency_checks: 0
+2021/03/14-07:13:16.024563 7fa14abf5a80 Options.report_bg_io_stats: 0
+2021/03/14-07:13:16.024989 7fa14abf5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:13:16.024992 7fa14abf5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:13:16.025150 7fa14abf5a80 EVENT_LOG_v1 {"time_micros": 1615702396025138, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:13:16.025156 7fa14abf5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:13:16.791527 7fa14abf5a80 EVENT_LOG_v1 {"time_micros": 1615702396791524, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702397551193 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702397551193
new file mode 100644
index 0000000..7152451
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702397551193
@@ -0,0 +1,186 @@
+2021/03/14-07:13:16.804104 7fa14abf5a80 RocksDB version: 5.11.3
+2021/03/14-07:13:16.804160 7fa14abf5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:13:16.804161 7fa14abf5a80 Compile date Mar 13 2021
+2021/03/14-07:13:16.804166 7fa14abf5a80 DB SUMMARY
+2021/03/14-07:13:16.804318 7fa14abf5a80 CURRENT file: CURRENT
+2021/03/14-07:13:16.804320 7fa14abf5a80 IDENTITY file: IDENTITY
+2021/03/14-07:13:16.804334 7fa14abf5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:13:16.804335 7fa14abf5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:13:16.804336 7fa14abf5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:13:16.804341 7fa14abf5a80 Options.error_if_exists: 0
+2021/03/14-07:13:16.804341 7fa14abf5a80 Options.create_if_missing: 1
+2021/03/14-07:13:16.804342 7fa14abf5a80 Options.paranoid_checks: 1
+2021/03/14-07:13:16.804343 7fa14abf5a80 Options.env: 0x7fa14b5af080
+2021/03/14-07:13:16.804343 7fa14abf5a80 Options.info_log: 0x29c4ca0
+2021/03/14-07:13:16.804344 7fa14abf5a80 Options.max_file_opening_threads: 16
+2021/03/14-07:13:16.804344 7fa14abf5a80 Options.statistics: (nil)
+2021/03/14-07:13:16.804345 7fa14abf5a80 Options.use_fsync: 0
+2021/03/14-07:13:16.804346 7fa14abf5a80 Options.max_log_file_size: 0
+2021/03/14-07:13:16.804346 7fa14abf5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:13:16.804347 7fa14abf5a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:13:16.804347 7fa14abf5a80 Options.keep_log_file_num: 1000
+2021/03/14-07:13:16.804348 7fa14abf5a80 Options.recycle_log_file_num: 0
+2021/03/14-07:13:16.804349 7fa14abf5a80 Options.allow_fallocate: 1
+2021/03/14-07:13:16.804349 7fa14abf5a80 Options.allow_mmap_reads: 0
+2021/03/14-07:13:16.804350 7fa14abf5a80 Options.allow_mmap_writes: 0
+2021/03/14-07:13:16.804350 7fa14abf5a80 Options.use_direct_reads: 0
+2021/03/14-07:13:16.804351 7fa14abf5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:13:16.804351 7fa14abf5a80 Options.create_missing_column_families: 0
+2021/03/14-07:13:16.804352 7fa14abf5a80 Options.db_log_dir:
+2021/03/14-07:13:16.804352 7fa14abf5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:13:16.804353 7fa14abf5a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:13:16.804354 7fa14abf5a80 Options.max_subcompactions: 1
+2021/03/14-07:13:16.804354 7fa14abf5a80 Options.max_background_flushes: -1
+2021/03/14-07:13:16.804355 7fa14abf5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:13:16.804355 7fa14abf5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:13:16.804356 7fa14abf5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:13:16.804356 7fa14abf5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:13:16.804357 7fa14abf5a80 Options.advise_random_on_open: 1
+2021/03/14-07:13:16.804357 7fa14abf5a80 Options.db_write_buffer_size: 0
+2021/03/14-07:13:16.804358 7fa14abf5a80 Options.write_buffer_manager: 0x29acb90
+2021/03/14-07:13:16.804359 7fa14abf5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:13:16.804359 7fa14abf5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:13:16.804360 7fa14abf5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:13:16.804360 7fa14abf5a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:13:16.804361 7fa14abf5a80 Options.rate_limiter: (nil)
+2021/03/14-07:13:16.804362 7fa14abf5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:13:16.804371 7fa14abf5a80 Options.wal_recovery_mode: 2
+2021/03/14-07:13:16.804372 7fa14abf5a80 Options.enable_thread_tracking: 0
+2021/03/14-07:13:16.804373 7fa14abf5a80 Options.enable_pipelined_write: 0
+2021/03/14-07:13:16.804373 7fa14abf5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:13:16.804374 7fa14abf5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:13:16.804374 7fa14abf5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:13:16.804375 7fa14abf5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:13:16.804375 7fa14abf5a80 Options.row_cache: None
+2021/03/14-07:13:16.804376 7fa14abf5a80 Options.wal_filter: None
+2021/03/14-07:13:16.804377 7fa14abf5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:13:16.804377 7fa14abf5a80 Options.allow_ingest_behind: 0
+2021/03/14-07:13:16.804378 7fa14abf5a80 Options.preserve_deletes: 0
+2021/03/14-07:13:16.804378 7fa14abf5a80 Options.two_write_queues: 0
+2021/03/14-07:13:16.804379 7fa14abf5a80 Options.manual_wal_flush: 0
+2021/03/14-07:13:16.804380 7fa14abf5a80 Options.max_background_jobs: 16
+2021/03/14-07:13:16.804380 7fa14abf5a80 Options.max_background_compactions: -1
+2021/03/14-07:13:16.804381 7fa14abf5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:13:16.804382 7fa14abf5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:13:16.804382 7fa14abf5a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:13:16.804383 7fa14abf5a80 Options.max_total_wal_size: 0
+2021/03/14-07:13:16.804383 7fa14abf5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:13:16.804384 7fa14abf5a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:13:16.804385 7fa14abf5a80 Options.max_open_files: -1
+2021/03/14-07:13:16.804385 7fa14abf5a80 Options.bytes_per_sync: 0
+2021/03/14-07:13:16.804386 7fa14abf5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:13:16.804386 7fa14abf5a80 Options.compaction_readahead_size: 0
+2021/03/14-07:13:16.804387 7fa14abf5a80 Compression algorithms supported:
+2021/03/14-07:13:16.804387 7fa14abf5a80 Snappy supported: 1
+2021/03/14-07:13:16.804388 7fa14abf5a80 Zlib supported: 1
+2021/03/14-07:13:16.804388 7fa14abf5a80 Bzip supported: 1
+2021/03/14-07:13:16.804389 7fa14abf5a80 LZ4 supported: 1
+2021/03/14-07:13:16.804389 7fa14abf5a80 ZSTDNotFinal supported: 1
+2021/03/14-07:13:16.804393 7fa14abf5a80 ZSTD supported: 1
+2021/03/14-07:13:16.804396 7fa14abf5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:13:16.804398 7fa14abf5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:13:16.804565 7fa14abf5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:13:16.804620 7fa14abf5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:13:16.804622 7fa14abf5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:13:16.804623 7fa14abf5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:13:16.804623 7fa14abf5a80 Options.compaction_filter: None
+2021/03/14-07:13:16.804624 7fa14abf5a80 Options.compaction_filter_factory: None
+2021/03/14-07:13:16.804624 7fa14abf5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:13:16.804625 7fa14abf5a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:13:16.804638 7fa14abf5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x29bc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x29a1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:13:16.804639 7fa14abf5a80 Options.write_buffer_size: 134217728
+2021/03/14-07:13:16.804640 7fa14abf5a80 Options.max_write_buffer_number: 6
+2021/03/14-07:13:16.804640 7fa14abf5a80 Options.compression[0]: NoCompression
+2021/03/14-07:13:16.804641 7fa14abf5a80 Options.compression[1]: NoCompression
+2021/03/14-07:13:16.804642 7fa14abf5a80 Options.compression[2]: Snappy
+2021/03/14-07:13:16.804642 7fa14abf5a80 Options.compression[3]: Snappy
+2021/03/14-07:13:16.804643 7fa14abf5a80 Options.compression[4]: Snappy
+2021/03/14-07:13:16.804643 7fa14abf5a80 Options.compression[5]: Snappy
+2021/03/14-07:13:16.804644 7fa14abf5a80 Options.compression[6]: Snappy
+2021/03/14-07:13:16.804644 7fa14abf5a80 Options.bottommost_compression: Disabled
+2021/03/14-07:13:16.804645 7fa14abf5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:13:16.804646 7fa14abf5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:13:16.804646 7fa14abf5a80 Options.num_levels: 7
+2021/03/14-07:13:16.804647 7fa14abf5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:13:16.804648 7fa14abf5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:13:16.804648 7fa14abf5a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:13:16.804649 7fa14abf5a80 Options.compression_opts.level: -1
+2021/03/14-07:13:16.804649 7fa14abf5a80 Options.compression_opts.strategy: 0
+2021/03/14-07:13:16.804650 7fa14abf5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:13:16.804650 7fa14abf5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:13:16.804651 7fa14abf5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:13:16.804652 7fa14abf5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:13:16.804652 7fa14abf5a80 Options.target_file_size_base: 67108864
+2021/03/14-07:13:16.804653 7fa14abf5a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:13:16.804653 7fa14abf5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:13:16.804654 7fa14abf5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:13:16.804654 7fa14abf5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:13:16.804656 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:13:16.804664 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:13:16.804665 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:13:16.804665 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:13:16.804666 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:13:16.804666 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:13:16.804667 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:13:16.804667 7fa14abf5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:13:16.804668 7fa14abf5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:13:16.804669 7fa14abf5a80 Options.arena_block_size: 16777216
+2021/03/14-07:13:16.804669 7fa14abf5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:13:16.804670 7fa14abf5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:13:16.804670 7fa14abf5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:13:16.804671 7fa14abf5a80 Options.disable_auto_compactions: 0
+2021/03/14-07:13:16.804673 7fa14abf5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:13:16.804674 7fa14abf5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:13:16.804674 7fa14abf5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:13:16.804675 7fa14abf5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:13:16.804675 7fa14abf5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:13:16.804676 7fa14abf5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:13:16.804677 7fa14abf5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:13:16.804678 7fa14abf5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:13:16.804678 7fa14abf5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:13:16.804679 7fa14abf5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:13:16.804679 7fa14abf5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:13:16.804680 7fa14abf5a80 Options.table_properties_collectors:
+2021/03/14-07:13:16.804680 7fa14abf5a80 Options.inplace_update_support: 0
+2021/03/14-07:13:16.804681 7fa14abf5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:13:16.804681 7fa14abf5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:13:16.804682 7fa14abf5a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:13:16.804683 7fa14abf5a80 Options.bloom_locality: 0
+2021/03/14-07:13:16.804683 7fa14abf5a80 Options.max_successive_merges: 0
+2021/03/14-07:13:16.804684 7fa14abf5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:13:16.804684 7fa14abf5a80 Options.paranoid_file_checks: 0
+2021/03/14-07:13:16.804685 7fa14abf5a80 Options.force_consistency_checks: 0
+2021/03/14-07:13:16.804686 7fa14abf5a80 Options.report_bg_io_stats: 0
+2021/03/14-07:13:16.805064 7fa14abf5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:13:16.805066 7fa14abf5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:13:16.805208 7fa14abf5a80 EVENT_LOG_v1 {"time_micros": 1615702396805198, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:13:16.805213 7fa14abf5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:13:17.538414 7fa14abf5a80 EVENT_LOG_v1 {"time_micros": 1615702397538410, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702398297788 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702398297788
new file mode 100644
index 0000000..24fc70c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702398297788
@@ -0,0 +1,186 @@
+2021/03/14-07:13:17.551609 7fa14abf5a80 RocksDB version: 5.11.3
+2021/03/14-07:13:17.551666 7fa14abf5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:13:17.551668 7fa14abf5a80 Compile date Mar 13 2021
+2021/03/14-07:13:17.551673 7fa14abf5a80 DB SUMMARY
+2021/03/14-07:13:17.551816 7fa14abf5a80 CURRENT file: CURRENT
+2021/03/14-07:13:17.551817 7fa14abf5a80 IDENTITY file: IDENTITY
+2021/03/14-07:13:17.551831 7fa14abf5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:13:17.551832 7fa14abf5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:13:17.551833 7fa14abf5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:13:17.551838 7fa14abf5a80 Options.error_if_exists: 0
+2021/03/14-07:13:17.551839 7fa14abf5a80 Options.create_if_missing: 1
+2021/03/14-07:13:17.551839 7fa14abf5a80 Options.paranoid_checks: 1
+2021/03/14-07:13:17.551840 7fa14abf5a80 Options.env: 0x7fa14b5af080
+2021/03/14-07:13:17.551840 7fa14abf5a80 Options.info_log: 0x29c4ca0
+2021/03/14-07:13:17.551841 7fa14abf5a80 Options.max_file_opening_threads: 16
+2021/03/14-07:13:17.551841 7fa14abf5a80 Options.statistics: (nil)
+2021/03/14-07:13:17.551842 7fa14abf5a80 Options.use_fsync: 0
+2021/03/14-07:13:17.551843 7fa14abf5a80 Options.max_log_file_size: 0
+2021/03/14-07:13:17.551843 7fa14abf5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:13:17.551844 7fa14abf5a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:13:17.551844 7fa14abf5a80 Options.keep_log_file_num: 1000
+2021/03/14-07:13:17.551845 7fa14abf5a80 Options.recycle_log_file_num: 0
+2021/03/14-07:13:17.551846 7fa14abf5a80 Options.allow_fallocate: 1
+2021/03/14-07:13:17.551846 7fa14abf5a80 Options.allow_mmap_reads: 0
+2021/03/14-07:13:17.551847 7fa14abf5a80 Options.allow_mmap_writes: 0
+2021/03/14-07:13:17.551847 7fa14abf5a80 Options.use_direct_reads: 0
+2021/03/14-07:13:17.551848 7fa14abf5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:13:17.551848 7fa14abf5a80 Options.create_missing_column_families: 0
+2021/03/14-07:13:17.551849 7fa14abf5a80 Options.db_log_dir:
+2021/03/14-07:13:17.551849 7fa14abf5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:13:17.551850 7fa14abf5a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:13:17.551851 7fa14abf5a80 Options.max_subcompactions: 1
+2021/03/14-07:13:17.551851 7fa14abf5a80 Options.max_background_flushes: -1
+2021/03/14-07:13:17.551852 7fa14abf5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:13:17.551852 7fa14abf5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:13:17.551853 7fa14abf5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:13:17.551854 7fa14abf5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:13:17.551854 7fa14abf5a80 Options.advise_random_on_open: 1
+2021/03/14-07:13:17.551855 7fa14abf5a80 Options.db_write_buffer_size: 0
+2021/03/14-07:13:17.551855 7fa14abf5a80 Options.write_buffer_manager: 0x29acb90
+2021/03/14-07:13:17.551856 7fa14abf5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:13:17.551856 7fa14abf5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:13:17.551857 7fa14abf5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:13:17.551857 7fa14abf5a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:13:17.551858 7fa14abf5a80 Options.rate_limiter: (nil)
+2021/03/14-07:13:17.551859 7fa14abf5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:13:17.551867 7fa14abf5a80 Options.wal_recovery_mode: 2
+2021/03/14-07:13:17.551867 7fa14abf5a80 Options.enable_thread_tracking: 0
+2021/03/14-07:13:17.551868 7fa14abf5a80 Options.enable_pipelined_write: 0
+2021/03/14-07:13:17.551869 7fa14abf5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:13:17.551869 7fa14abf5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:13:17.551870 7fa14abf5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:13:17.551870 7fa14abf5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:13:17.551871 7fa14abf5a80 Options.row_cache: None
+2021/03/14-07:13:17.551871 7fa14abf5a80 Options.wal_filter: None
+2021/03/14-07:13:17.551872 7fa14abf5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:13:17.551873 7fa14abf5a80 Options.allow_ingest_behind: 0
+2021/03/14-07:13:17.551873 7fa14abf5a80 Options.preserve_deletes: 0
+2021/03/14-07:13:17.551874 7fa14abf5a80 Options.two_write_queues: 0
+2021/03/14-07:13:17.551874 7fa14abf5a80 Options.manual_wal_flush: 0
+2021/03/14-07:13:17.551875 7fa14abf5a80 Options.max_background_jobs: 16
+2021/03/14-07:13:17.551876 7fa14abf5a80 Options.max_background_compactions: -1
+2021/03/14-07:13:17.551877 7fa14abf5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:13:17.551877 7fa14abf5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:13:17.551878 7fa14abf5a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:13:17.551878 7fa14abf5a80 Options.max_total_wal_size: 0
+2021/03/14-07:13:17.551879 7fa14abf5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:13:17.551879 7fa14abf5a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:13:17.551880 7fa14abf5a80 Options.max_open_files: -1
+2021/03/14-07:13:17.551881 7fa14abf5a80 Options.bytes_per_sync: 0
+2021/03/14-07:13:17.551881 7fa14abf5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:13:17.551882 7fa14abf5a80 Options.compaction_readahead_size: 0
+2021/03/14-07:13:17.551882 7fa14abf5a80 Compression algorithms supported:
+2021/03/14-07:13:17.551883 7fa14abf5a80 Snappy supported: 1
+2021/03/14-07:13:17.551883 7fa14abf5a80 Zlib supported: 1
+2021/03/14-07:13:17.551884 7fa14abf5a80 Bzip supported: 1
+2021/03/14-07:13:17.551885 7fa14abf5a80 LZ4 supported: 1
+2021/03/14-07:13:17.551885 7fa14abf5a80 ZSTDNotFinal supported: 1
+2021/03/14-07:13:17.551889 7fa14abf5a80 ZSTD supported: 1
+2021/03/14-07:13:17.551892 7fa14abf5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:13:17.551893 7fa14abf5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:13:17.551983 7fa14abf5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:13:17.552036 7fa14abf5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:13:17.552038 7fa14abf5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:13:17.552039 7fa14abf5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:13:17.552039 7fa14abf5a80 Options.compaction_filter: None
+2021/03/14-07:13:17.552040 7fa14abf5a80 Options.compaction_filter_factory: None
+2021/03/14-07:13:17.552040 7fa14abf5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:13:17.552041 7fa14abf5a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:13:17.552054 7fa14abf5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x29bc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x29a1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:13:17.552055 7fa14abf5a80 Options.write_buffer_size: 134217728
+2021/03/14-07:13:17.552055 7fa14abf5a80 Options.max_write_buffer_number: 6
+2021/03/14-07:13:17.552056 7fa14abf5a80 Options.compression[0]: NoCompression
+2021/03/14-07:13:17.552057 7fa14abf5a80 Options.compression[1]: NoCompression
+2021/03/14-07:13:17.552057 7fa14abf5a80 Options.compression[2]: Snappy
+2021/03/14-07:13:17.552058 7fa14abf5a80 Options.compression[3]: Snappy
+2021/03/14-07:13:17.552058 7fa14abf5a80 Options.compression[4]: Snappy
+2021/03/14-07:13:17.552059 7fa14abf5a80 Options.compression[5]: Snappy
+2021/03/14-07:13:17.552059 7fa14abf5a80 Options.compression[6]: Snappy
+2021/03/14-07:13:17.552060 7fa14abf5a80 Options.bottommost_compression: Disabled
+2021/03/14-07:13:17.552061 7fa14abf5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:13:17.552061 7fa14abf5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:13:17.552062 7fa14abf5a80 Options.num_levels: 7
+2021/03/14-07:13:17.552063 7fa14abf5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:13:17.552063 7fa14abf5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:13:17.552064 7fa14abf5a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:13:17.552064 7fa14abf5a80 Options.compression_opts.level: -1
+2021/03/14-07:13:17.552065 7fa14abf5a80 Options.compression_opts.strategy: 0
+2021/03/14-07:13:17.552065 7fa14abf5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:13:17.552066 7fa14abf5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:13:17.552067 7fa14abf5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:13:17.552067 7fa14abf5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:13:17.552068 7fa14abf5a80 Options.target_file_size_base: 67108864
+2021/03/14-07:13:17.552068 7fa14abf5a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:13:17.552069 7fa14abf5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:13:17.552069 7fa14abf5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:13:17.552070 7fa14abf5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:13:17.552072 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:13:17.552079 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:13:17.552080 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:13:17.552081 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:13:17.552081 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:13:17.552082 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:13:17.552082 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:13:17.552083 7fa14abf5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:13:17.552083 7fa14abf5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:13:17.552084 7fa14abf5a80 Options.arena_block_size: 16777216
+2021/03/14-07:13:17.552084 7fa14abf5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:13:17.552085 7fa14abf5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:13:17.552086 7fa14abf5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:13:17.552086 7fa14abf5a80 Options.disable_auto_compactions: 0
+2021/03/14-07:13:17.552088 7fa14abf5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:13:17.552088 7fa14abf5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:13:17.552089 7fa14abf5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:13:17.552090 7fa14abf5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:13:17.552090 7fa14abf5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:13:17.552091 7fa14abf5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:13:17.552091 7fa14abf5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:13:17.552092 7fa14abf5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:13:17.552093 7fa14abf5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:13:17.552093 7fa14abf5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:13:17.552094 7fa14abf5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:13:17.552095 7fa14abf5a80 Options.table_properties_collectors:
+2021/03/14-07:13:17.552095 7fa14abf5a80 Options.inplace_update_support: 0
+2021/03/14-07:13:17.552096 7fa14abf5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:13:17.552096 7fa14abf5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:13:17.552097 7fa14abf5a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:13:17.552098 7fa14abf5a80 Options.bloom_locality: 0
+2021/03/14-07:13:17.552098 7fa14abf5a80 Options.max_successive_merges: 0
+2021/03/14-07:13:17.552099 7fa14abf5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:13:17.552099 7fa14abf5a80 Options.paranoid_file_checks: 0
+2021/03/14-07:13:17.552100 7fa14abf5a80 Options.force_consistency_checks: 0
+2021/03/14-07:13:17.552100 7fa14abf5a80 Options.report_bg_io_stats: 0
+2021/03/14-07:13:17.552549 7fa14abf5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:13:17.552552 7fa14abf5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:13:17.552703 7fa14abf5a80 EVENT_LOG_v1 {"time_micros": 1615702397552691, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:13:17.552708 7fa14abf5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:13:18.284911 7fa14abf5a80 EVENT_LOG_v1 {"time_micros": 1615702398284908, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702453647308 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702453647308
new file mode 100644
index 0000000..e85e8b2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702453647308
@@ -0,0 +1,186 @@
+2021/03/14-07:13:18.298190 7fa14abf5a80 RocksDB version: 5.11.3
+2021/03/14-07:13:18.298262 7fa14abf5a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:13:18.298264 7fa14abf5a80 Compile date Mar 13 2021
+2021/03/14-07:13:18.298268 7fa14abf5a80 DB SUMMARY
+2021/03/14-07:13:18.298413 7fa14abf5a80 CURRENT file: CURRENT
+2021/03/14-07:13:18.298415 7fa14abf5a80 IDENTITY file: IDENTITY
+2021/03/14-07:13:18.298429 7fa14abf5a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:13:18.298430 7fa14abf5a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:13:18.298431 7fa14abf5a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:13:18.298436 7fa14abf5a80 Options.error_if_exists: 0
+2021/03/14-07:13:18.298436 7fa14abf5a80 Options.create_if_missing: 1
+2021/03/14-07:13:18.298437 7fa14abf5a80 Options.paranoid_checks: 1
+2021/03/14-07:13:18.298438 7fa14abf5a80 Options.env: 0x7fa14b5af080
+2021/03/14-07:13:18.298438 7fa14abf5a80 Options.info_log: 0x29c4ca0
+2021/03/14-07:13:18.298439 7fa14abf5a80 Options.max_file_opening_threads: 16
+2021/03/14-07:13:18.298439 7fa14abf5a80 Options.statistics: (nil)
+2021/03/14-07:13:18.298440 7fa14abf5a80 Options.use_fsync: 0
+2021/03/14-07:13:18.298441 7fa14abf5a80 Options.max_log_file_size: 0
+2021/03/14-07:13:18.298441 7fa14abf5a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:13:18.298442 7fa14abf5a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:13:18.298443 7fa14abf5a80 Options.keep_log_file_num: 1000
+2021/03/14-07:13:18.298443 7fa14abf5a80 Options.recycle_log_file_num: 0
+2021/03/14-07:13:18.298444 7fa14abf5a80 Options.allow_fallocate: 1
+2021/03/14-07:13:18.298445 7fa14abf5a80 Options.allow_mmap_reads: 0
+2021/03/14-07:13:18.298445 7fa14abf5a80 Options.allow_mmap_writes: 0
+2021/03/14-07:13:18.298446 7fa14abf5a80 Options.use_direct_reads: 0
+2021/03/14-07:13:18.298446 7fa14abf5a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:13:18.298447 7fa14abf5a80 Options.create_missing_column_families: 0
+2021/03/14-07:13:18.298447 7fa14abf5a80 Options.db_log_dir:
+2021/03/14-07:13:18.298448 7fa14abf5a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:13:18.298448 7fa14abf5a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:13:18.298449 7fa14abf5a80 Options.max_subcompactions: 1
+2021/03/14-07:13:18.298450 7fa14abf5a80 Options.max_background_flushes: -1
+2021/03/14-07:13:18.298450 7fa14abf5a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:13:18.298451 7fa14abf5a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:13:18.298451 7fa14abf5a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:13:18.298452 7fa14abf5a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:13:18.298452 7fa14abf5a80 Options.advise_random_on_open: 1
+2021/03/14-07:13:18.298453 7fa14abf5a80 Options.db_write_buffer_size: 0
+2021/03/14-07:13:18.298453 7fa14abf5a80 Options.write_buffer_manager: 0x29acb90
+2021/03/14-07:13:18.298454 7fa14abf5a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:13:18.298455 7fa14abf5a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:13:18.298455 7fa14abf5a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:13:18.298456 7fa14abf5a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:13:18.298456 7fa14abf5a80 Options.rate_limiter: (nil)
+2021/03/14-07:13:18.298458 7fa14abf5a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:13:18.298465 7fa14abf5a80 Options.wal_recovery_mode: 2
+2021/03/14-07:13:18.298466 7fa14abf5a80 Options.enable_thread_tracking: 0
+2021/03/14-07:13:18.298466 7fa14abf5a80 Options.enable_pipelined_write: 0
+2021/03/14-07:13:18.298467 7fa14abf5a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:13:18.298468 7fa14abf5a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:13:18.298468 7fa14abf5a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:13:18.298469 7fa14abf5a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:13:18.298469 7fa14abf5a80 Options.row_cache: None
+2021/03/14-07:13:18.298470 7fa14abf5a80 Options.wal_filter: None
+2021/03/14-07:13:18.298471 7fa14abf5a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:13:18.298471 7fa14abf5a80 Options.allow_ingest_behind: 0
+2021/03/14-07:13:18.298472 7fa14abf5a80 Options.preserve_deletes: 0
+2021/03/14-07:13:18.298472 7fa14abf5a80 Options.two_write_queues: 0
+2021/03/14-07:13:18.298473 7fa14abf5a80 Options.manual_wal_flush: 0
+2021/03/14-07:13:18.298474 7fa14abf5a80 Options.max_background_jobs: 16
+2021/03/14-07:13:18.298475 7fa14abf5a80 Options.max_background_compactions: -1
+2021/03/14-07:13:18.298475 7fa14abf5a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:13:18.298476 7fa14abf5a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:13:18.298476 7fa14abf5a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:13:18.298477 7fa14abf5a80 Options.max_total_wal_size: 0
+2021/03/14-07:13:18.298477 7fa14abf5a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:13:18.298478 7fa14abf5a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:13:18.298479 7fa14abf5a80 Options.max_open_files: -1
+2021/03/14-07:13:18.298479 7fa14abf5a80 Options.bytes_per_sync: 0
+2021/03/14-07:13:18.298480 7fa14abf5a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:13:18.298480 7fa14abf5a80 Options.compaction_readahead_size: 0
+2021/03/14-07:13:18.298481 7fa14abf5a80 Compression algorithms supported:
+2021/03/14-07:13:18.298481 7fa14abf5a80 Snappy supported: 1
+2021/03/14-07:13:18.298482 7fa14abf5a80 Zlib supported: 1
+2021/03/14-07:13:18.298483 7fa14abf5a80 Bzip supported: 1
+2021/03/14-07:13:18.298483 7fa14abf5a80 LZ4 supported: 1
+2021/03/14-07:13:18.298484 7fa14abf5a80 ZSTDNotFinal supported: 1
+2021/03/14-07:13:18.298487 7fa14abf5a80 ZSTD supported: 1
+2021/03/14-07:13:18.298490 7fa14abf5a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:13:18.298492 7fa14abf5a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:13:18.298580 7fa14abf5a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:13:18.298633 7fa14abf5a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:13:18.298635 7fa14abf5a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:13:18.298635 7fa14abf5a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:13:18.298636 7fa14abf5a80 Options.compaction_filter: None
+2021/03/14-07:13:18.298637 7fa14abf5a80 Options.compaction_filter_factory: None
+2021/03/14-07:13:18.298637 7fa14abf5a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:13:18.298638 7fa14abf5a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:13:18.298650 7fa14abf5a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x29bc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x29a1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:13:18.298651 7fa14abf5a80 Options.write_buffer_size: 134217728
+2021/03/14-07:13:18.298652 7fa14abf5a80 Options.max_write_buffer_number: 6
+2021/03/14-07:13:18.298652 7fa14abf5a80 Options.compression[0]: NoCompression
+2021/03/14-07:13:18.298653 7fa14abf5a80 Options.compression[1]: NoCompression
+2021/03/14-07:13:18.298654 7fa14abf5a80 Options.compression[2]: Snappy
+2021/03/14-07:13:18.298654 7fa14abf5a80 Options.compression[3]: Snappy
+2021/03/14-07:13:18.298655 7fa14abf5a80 Options.compression[4]: Snappy
+2021/03/14-07:13:18.298655 7fa14abf5a80 Options.compression[5]: Snappy
+2021/03/14-07:13:18.298656 7fa14abf5a80 Options.compression[6]: Snappy
+2021/03/14-07:13:18.298657 7fa14abf5a80 Options.bottommost_compression: Disabled
+2021/03/14-07:13:18.298657 7fa14abf5a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:13:18.298658 7fa14abf5a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:13:18.298659 7fa14abf5a80 Options.num_levels: 7
+2021/03/14-07:13:18.298659 7fa14abf5a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:13:18.298660 7fa14abf5a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:13:18.298660 7fa14abf5a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:13:18.298661 7fa14abf5a80 Options.compression_opts.level: -1
+2021/03/14-07:13:18.298662 7fa14abf5a80 Options.compression_opts.strategy: 0
+2021/03/14-07:13:18.298662 7fa14abf5a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:13:18.298663 7fa14abf5a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:13:18.298663 7fa14abf5a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:13:18.298664 7fa14abf5a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:13:18.298664 7fa14abf5a80 Options.target_file_size_base: 67108864
+2021/03/14-07:13:18.298665 7fa14abf5a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:13:18.298666 7fa14abf5a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:13:18.298666 7fa14abf5a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:13:18.298667 7fa14abf5a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:13:18.298668 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:13:18.298675 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:13:18.298676 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:13:18.298677 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:13:18.298677 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:13:18.298678 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:13:18.298678 7fa14abf5a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:13:18.298679 7fa14abf5a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:13:18.298679 7fa14abf5a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:13:18.298680 7fa14abf5a80 Options.arena_block_size: 16777216
+2021/03/14-07:13:18.298681 7fa14abf5a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:13:18.298681 7fa14abf5a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:13:18.298682 7fa14abf5a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:13:18.298682 7fa14abf5a80 Options.disable_auto_compactions: 0
+2021/03/14-07:13:18.298684 7fa14abf5a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:13:18.298685 7fa14abf5a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:13:18.298686 7fa14abf5a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:13:18.298686 7fa14abf5a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:13:18.298687 7fa14abf5a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:13:18.298687 7fa14abf5a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:13:18.298688 7fa14abf5a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:13:18.298689 7fa14abf5a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:13:18.298689 7fa14abf5a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:13:18.298690 7fa14abf5a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:13:18.298691 7fa14abf5a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:13:18.298691 7fa14abf5a80 Options.table_properties_collectors:
+2021/03/14-07:13:18.298692 7fa14abf5a80 Options.inplace_update_support: 0
+2021/03/14-07:13:18.298692 7fa14abf5a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:13:18.298693 7fa14abf5a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:13:18.298694 7fa14abf5a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:13:18.298694 7fa14abf5a80 Options.bloom_locality: 0
+2021/03/14-07:13:18.298695 7fa14abf5a80 Options.max_successive_merges: 0
+2021/03/14-07:13:18.298695 7fa14abf5a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:13:18.298696 7fa14abf5a80 Options.paranoid_file_checks: 0
+2021/03/14-07:13:18.298696 7fa14abf5a80 Options.force_consistency_checks: 0
+2021/03/14-07:13:18.298697 7fa14abf5a80 Options.report_bg_io_stats: 0
+2021/03/14-07:13:18.299084 7fa14abf5a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:13:18.299087 7fa14abf5a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:13:18.299231 7fa14abf5a80 EVENT_LOG_v1 {"time_micros": 1615702398299220, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:13:18.299236 7fa14abf5a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:13:19.015307 7fa14abf5a80 EVENT_LOG_v1 {"time_micros": 1615702399015304, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702454420060 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702454420060
new file mode 100644
index 0000000..7aa6ead
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702454420060
@@ -0,0 +1,186 @@
+2021/03/14-07:14:13.647851 7fc14108fa80 RocksDB version: 5.11.3
+2021/03/14-07:14:13.647911 7fc14108fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:14:13.647912 7fc14108fa80 Compile date Mar 13 2021
+2021/03/14-07:14:13.647915 7fc14108fa80 DB SUMMARY
+2021/03/14-07:14:13.648065 7fc14108fa80 CURRENT file: CURRENT
+2021/03/14-07:14:13.648066 7fc14108fa80 IDENTITY file: IDENTITY
+2021/03/14-07:14:13.648081 7fc14108fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:14:13.648082 7fc14108fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:14:13.648083 7fc14108fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:14:13.648088 7fc14108fa80 Options.error_if_exists: 0
+2021/03/14-07:14:13.648089 7fc14108fa80 Options.create_if_missing: 1
+2021/03/14-07:14:13.648090 7fc14108fa80 Options.paranoid_checks: 1
+2021/03/14-07:14:13.648090 7fc14108fa80 Options.env: 0x7fc141a49080
+2021/03/14-07:14:13.648091 7fc14108fa80 Options.info_log: 0x1f44fa0
+2021/03/14-07:14:13.648092 7fc14108fa80 Options.max_file_opening_threads: 16
+2021/03/14-07:14:13.648092 7fc14108fa80 Options.statistics: (nil)
+2021/03/14-07:14:13.648093 7fc14108fa80 Options.use_fsync: 0
+2021/03/14-07:14:13.648093 7fc14108fa80 Options.max_log_file_size: 0
+2021/03/14-07:14:13.648094 7fc14108fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:14:13.648095 7fc14108fa80 Options.log_file_time_to_roll: 0
+2021/03/14-07:14:13.648095 7fc14108fa80 Options.keep_log_file_num: 1000
+2021/03/14-07:14:13.648096 7fc14108fa80 Options.recycle_log_file_num: 0
+2021/03/14-07:14:13.648097 7fc14108fa80 Options.allow_fallocate: 1
+2021/03/14-07:14:13.648097 7fc14108fa80 Options.allow_mmap_reads: 0
+2021/03/14-07:14:13.648098 7fc14108fa80 Options.allow_mmap_writes: 0
+2021/03/14-07:14:13.648098 7fc14108fa80 Options.use_direct_reads: 0
+2021/03/14-07:14:13.648099 7fc14108fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:14:13.648099 7fc14108fa80 Options.create_missing_column_families: 0
+2021/03/14-07:14:13.648100 7fc14108fa80 Options.db_log_dir:
+2021/03/14-07:14:13.648100 7fc14108fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:14:13.648101 7fc14108fa80 Options.table_cache_numshardbits: 6
+2021/03/14-07:14:13.648102 7fc14108fa80 Options.max_subcompactions: 1
+2021/03/14-07:14:13.648102 7fc14108fa80 Options.max_background_flushes: -1
+2021/03/14-07:14:13.648103 7fc14108fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:14:13.648103 7fc14108fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:14:13.648104 7fc14108fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:14:13.648105 7fc14108fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:14:13.648105 7fc14108fa80 Options.advise_random_on_open: 1
+2021/03/14-07:14:13.648106 7fc14108fa80 Options.db_write_buffer_size: 0
+2021/03/14-07:14:13.648106 7fc14108fa80 Options.write_buffer_manager: 0x1f2ce90
+2021/03/14-07:14:13.648107 7fc14108fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:14:13.648107 7fc14108fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:14:13.648108 7fc14108fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:14:13.648109 7fc14108fa80 Options.use_adaptive_mutex: 0
+2021/03/14-07:14:13.648109 7fc14108fa80 Options.rate_limiter: (nil)
+2021/03/14-07:14:13.648111 7fc14108fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:14:13.648122 7fc14108fa80 Options.wal_recovery_mode: 2
+2021/03/14-07:14:13.648123 7fc14108fa80 Options.enable_thread_tracking: 0
+2021/03/14-07:14:13.648123 7fc14108fa80 Options.enable_pipelined_write: 0
+2021/03/14-07:14:13.648124 7fc14108fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:14:13.648125 7fc14108fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:14:13.648125 7fc14108fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:14:13.648126 7fc14108fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:14:13.648126 7fc14108fa80 Options.row_cache: None
+2021/03/14-07:14:13.648127 7fc14108fa80 Options.wal_filter: None
+2021/03/14-07:14:13.648128 7fc14108fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:14:13.648128 7fc14108fa80 Options.allow_ingest_behind: 0
+2021/03/14-07:14:13.648129 7fc14108fa80 Options.preserve_deletes: 0
+2021/03/14-07:14:13.648129 7fc14108fa80 Options.two_write_queues: 0
+2021/03/14-07:14:13.648130 7fc14108fa80 Options.manual_wal_flush: 0
+2021/03/14-07:14:13.648131 7fc14108fa80 Options.max_background_jobs: 16
+2021/03/14-07:14:13.648131 7fc14108fa80 Options.max_background_compactions: -1
+2021/03/14-07:14:13.648145 7fc14108fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:14:13.648146 7fc14108fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:14:13.648146 7fc14108fa80 Options.delayed_write_rate : 16777216
+2021/03/14-07:14:13.648147 7fc14108fa80 Options.max_total_wal_size: 0
+2021/03/14-07:14:13.648147 7fc14108fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:14:13.648148 7fc14108fa80 Options.stats_dump_period_sec: 600
+2021/03/14-07:14:13.648149 7fc14108fa80 Options.max_open_files: -1
+2021/03/14-07:14:13.648149 7fc14108fa80 Options.bytes_per_sync: 0
+2021/03/14-07:14:13.648150 7fc14108fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:14:13.648150 7fc14108fa80 Options.compaction_readahead_size: 0
+2021/03/14-07:14:13.648151 7fc14108fa80 Compression algorithms supported:
+2021/03/14-07:14:13.648151 7fc14108fa80 Snappy supported: 1
+2021/03/14-07:14:13.648152 7fc14108fa80 Zlib supported: 1
+2021/03/14-07:14:13.648152 7fc14108fa80 Bzip supported: 1
+2021/03/14-07:14:13.648153 7fc14108fa80 LZ4 supported: 1
+2021/03/14-07:14:13.648154 7fc14108fa80 ZSTDNotFinal supported: 1
+2021/03/14-07:14:13.648158 7fc14108fa80 ZSTD supported: 1
+2021/03/14-07:14:13.648162 7fc14108fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:14:13.648163 7fc14108fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:14:13.648337 7fc14108fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:14:13.648394 7fc14108fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:14:13.648395 7fc14108fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:14:13.648396 7fc14108fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:14:13.648397 7fc14108fa80 Options.compaction_filter: None
+2021/03/14-07:14:13.648397 7fc14108fa80 Options.compaction_filter_factory: None
+2021/03/14-07:14:13.648398 7fc14108fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:14:13.648399 7fc14108fa80 Options.table_factory: BlockBasedTable
+2021/03/14-07:14:13.648413 7fc14108fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1f3c820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1f21f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:14:13.648414 7fc14108fa80 Options.write_buffer_size: 134217728
+2021/03/14-07:14:13.648414 7fc14108fa80 Options.max_write_buffer_number: 6
+2021/03/14-07:14:13.648415 7fc14108fa80 Options.compression[0]: NoCompression
+2021/03/14-07:14:13.648416 7fc14108fa80 Options.compression[1]: NoCompression
+2021/03/14-07:14:13.648417 7fc14108fa80 Options.compression[2]: Snappy
+2021/03/14-07:14:13.648417 7fc14108fa80 Options.compression[3]: Snappy
+2021/03/14-07:14:13.648418 7fc14108fa80 Options.compression[4]: Snappy
+2021/03/14-07:14:13.648418 7fc14108fa80 Options.compression[5]: Snappy
+2021/03/14-07:14:13.648419 7fc14108fa80 Options.compression[6]: Snappy
+2021/03/14-07:14:13.648419 7fc14108fa80 Options.bottommost_compression: Disabled
+2021/03/14-07:14:13.648420 7fc14108fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:14:13.648421 7fc14108fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:14:13.648421 7fc14108fa80 Options.num_levels: 7
+2021/03/14-07:14:13.648422 7fc14108fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:14:13.648423 7fc14108fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:14:13.648423 7fc14108fa80 Options.compression_opts.window_bits: -14
+2021/03/14-07:14:13.648424 7fc14108fa80 Options.compression_opts.level: -1
+2021/03/14-07:14:13.648424 7fc14108fa80 Options.compression_opts.strategy: 0
+2021/03/14-07:14:13.648425 7fc14108fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:14:13.648426 7fc14108fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:14:13.648426 7fc14108fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:14:13.648427 7fc14108fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:14:13.648427 7fc14108fa80 Options.target_file_size_base: 67108864
+2021/03/14-07:14:13.648428 7fc14108fa80 Options.target_file_size_multiplier: 1
+2021/03/14-07:14:13.648428 7fc14108fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:14:13.648429 7fc14108fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:14:13.648430 7fc14108fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:14:13.648431 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:14:13.648440 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:14:13.648440 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:14:13.648441 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:14:13.648441 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:14:13.648442 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:14:13.648443 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:14:13.648443 7fc14108fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:14:13.648444 7fc14108fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:14:13.648444 7fc14108fa80 Options.arena_block_size: 16777216
+2021/03/14-07:14:13.648445 7fc14108fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:14:13.648445 7fc14108fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:14:13.648446 7fc14108fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:14:13.648447 7fc14108fa80 Options.disable_auto_compactions: 0
+2021/03/14-07:14:13.648448 7fc14108fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:14:13.648449 7fc14108fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:14:13.648450 7fc14108fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:14:13.648450 7fc14108fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:14:13.648451 7fc14108fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:14:13.648451 7fc14108fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:14:13.648452 7fc14108fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:14:13.648453 7fc14108fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:14:13.648454 7fc14108fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:14:13.648454 7fc14108fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:14:13.648455 7fc14108fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:14:13.648455 7fc14108fa80 Options.table_properties_collectors:
+2021/03/14-07:14:13.648456 7fc14108fa80 Options.inplace_update_support: 0
+2021/03/14-07:14:13.648457 7fc14108fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:14:13.648457 7fc14108fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:14:13.648458 7fc14108fa80 Options.memtable_huge_page_size: 0
+2021/03/14-07:14:13.648459 7fc14108fa80 Options.bloom_locality: 0
+2021/03/14-07:14:13.648459 7fc14108fa80 Options.max_successive_merges: 0
+2021/03/14-07:14:13.648460 7fc14108fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:14:13.648460 7fc14108fa80 Options.paranoid_file_checks: 0
+2021/03/14-07:14:13.648461 7fc14108fa80 Options.force_consistency_checks: 0
+2021/03/14-07:14:13.648461 7fc14108fa80 Options.report_bg_io_stats: 0
+2021/03/14-07:14:13.648850 7fc14108fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:14:13.648853 7fc14108fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:14:13.649008 7fc14108fa80 EVENT_LOG_v1 {"time_micros": 1615702453648997, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:14:13.649013 7fc14108fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:14:14.408148 7fc14108fa80 EVENT_LOG_v1 {"time_micros": 1615702454408145, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702455367309 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702455367309
new file mode 100644
index 0000000..cdecb16
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702455367309
@@ -0,0 +1,186 @@
+2021/03/14-07:14:14.420460 7fc14108fa80 RocksDB version: 5.11.3
+2021/03/14-07:14:14.610124 7fc14108fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:14:14.610131 7fc14108fa80 Compile date Mar 13 2021
+2021/03/14-07:14:14.610137 7fc14108fa80 DB SUMMARY
+2021/03/14-07:14:14.610453 7fc14108fa80 CURRENT file: CURRENT
+2021/03/14-07:14:14.610456 7fc14108fa80 IDENTITY file: IDENTITY
+2021/03/14-07:14:14.610481 7fc14108fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:14:14.610483 7fc14108fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:14:14.610485 7fc14108fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:14:14.610495 7fc14108fa80 Options.error_if_exists: 0
+2021/03/14-07:14:14.610496 7fc14108fa80 Options.create_if_missing: 1
+2021/03/14-07:14:14.610497 7fc14108fa80 Options.paranoid_checks: 1
+2021/03/14-07:14:14.610498 7fc14108fa80 Options.env: 0x7fc141a49080
+2021/03/14-07:14:14.610499 7fc14108fa80 Options.info_log: 0x1f44fa0
+2021/03/14-07:14:14.610500 7fc14108fa80 Options.max_file_opening_threads: 16
+2021/03/14-07:14:14.610501 7fc14108fa80 Options.statistics: (nil)
+2021/03/14-07:14:14.610503 7fc14108fa80 Options.use_fsync: 0
+2021/03/14-07:14:14.610504 7fc14108fa80 Options.max_log_file_size: 0
+2021/03/14-07:14:14.610505 7fc14108fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:14:14.610506 7fc14108fa80 Options.log_file_time_to_roll: 0
+2021/03/14-07:14:14.610507 7fc14108fa80 Options.keep_log_file_num: 1000
+2021/03/14-07:14:14.610508 7fc14108fa80 Options.recycle_log_file_num: 0
+2021/03/14-07:14:14.610509 7fc14108fa80 Options.allow_fallocate: 1
+2021/03/14-07:14:14.610510 7fc14108fa80 Options.allow_mmap_reads: 0
+2021/03/14-07:14:14.610511 7fc14108fa80 Options.allow_mmap_writes: 0
+2021/03/14-07:14:14.610512 7fc14108fa80 Options.use_direct_reads: 0
+2021/03/14-07:14:14.610513 7fc14108fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:14:14.610514 7fc14108fa80 Options.create_missing_column_families: 0
+2021/03/14-07:14:14.610515 7fc14108fa80 Options.db_log_dir:
+2021/03/14-07:14:14.610516 7fc14108fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:14:14.610518 7fc14108fa80 Options.table_cache_numshardbits: 6
+2021/03/14-07:14:14.610519 7fc14108fa80 Options.max_subcompactions: 1
+2021/03/14-07:14:14.610520 7fc14108fa80 Options.max_background_flushes: -1
+2021/03/14-07:14:14.610521 7fc14108fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:14:14.610522 7fc14108fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:14:14.610523 7fc14108fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:14:14.610524 7fc14108fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:14:14.610525 7fc14108fa80 Options.advise_random_on_open: 1
+2021/03/14-07:14:14.610526 7fc14108fa80 Options.db_write_buffer_size: 0
+2021/03/14-07:14:14.610527 7fc14108fa80 Options.write_buffer_manager: 0x1f2ce90
+2021/03/14-07:14:14.610528 7fc14108fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:14:14.610529 7fc14108fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:14:14.610530 7fc14108fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:14:14.610531 7fc14108fa80 Options.use_adaptive_mutex: 0
+2021/03/14-07:14:14.610532 7fc14108fa80 Options.rate_limiter: (nil)
+2021/03/14-07:14:14.610535 7fc14108fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:14:14.610550 7fc14108fa80 Options.wal_recovery_mode: 2
+2021/03/14-07:14:14.610552 7fc14108fa80 Options.enable_thread_tracking: 0
+2021/03/14-07:14:14.610553 7fc14108fa80 Options.enable_pipelined_write: 0
+2021/03/14-07:14:14.610554 7fc14108fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:14:14.610555 7fc14108fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:14:14.610556 7fc14108fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:14:14.610557 7fc14108fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:14:14.610558 7fc14108fa80 Options.row_cache: None
+2021/03/14-07:14:14.610559 7fc14108fa80 Options.wal_filter: None
+2021/03/14-07:14:14.610560 7fc14108fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:14:14.610561 7fc14108fa80 Options.allow_ingest_behind: 0
+2021/03/14-07:14:14.610562 7fc14108fa80 Options.preserve_deletes: 0
+2021/03/14-07:14:14.610563 7fc14108fa80 Options.two_write_queues: 0
+2021/03/14-07:14:14.610564 7fc14108fa80 Options.manual_wal_flush: 0
+2021/03/14-07:14:14.610566 7fc14108fa80 Options.max_background_jobs: 16
+2021/03/14-07:14:14.610567 7fc14108fa80 Options.max_background_compactions: -1
+2021/03/14-07:14:14.610568 7fc14108fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:14:14.610569 7fc14108fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:14:14.610570 7fc14108fa80 Options.delayed_write_rate : 16777216
+2021/03/14-07:14:14.610571 7fc14108fa80 Options.max_total_wal_size: 0
+2021/03/14-07:14:14.610572 7fc14108fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:14:14.610573 7fc14108fa80 Options.stats_dump_period_sec: 600
+2021/03/14-07:14:14.610575 7fc14108fa80 Options.max_open_files: -1
+2021/03/14-07:14:14.610576 7fc14108fa80 Options.bytes_per_sync: 0
+2021/03/14-07:14:14.610577 7fc14108fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:14:14.610578 7fc14108fa80 Options.compaction_readahead_size: 0
+2021/03/14-07:14:14.610579 7fc14108fa80 Compression algorithms supported:
+2021/03/14-07:14:14.610580 7fc14108fa80 Snappy supported: 1
+2021/03/14-07:14:14.610581 7fc14108fa80 Zlib supported: 1
+2021/03/14-07:14:14.610582 7fc14108fa80 Bzip supported: 1
+2021/03/14-07:14:14.610583 7fc14108fa80 LZ4 supported: 1
+2021/03/14-07:14:14.610584 7fc14108fa80 ZSTDNotFinal supported: 1
+2021/03/14-07:14:14.610593 7fc14108fa80 ZSTD supported: 1
+2021/03/14-07:14:14.610599 7fc14108fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:14:14.610602 7fc14108fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:14:14.610811 7fc14108fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:14:14.610919 7fc14108fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:14:14.610922 7fc14108fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:14:14.610923 7fc14108fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:14:14.610924 7fc14108fa80 Options.compaction_filter: None
+2021/03/14-07:14:14.610925 7fc14108fa80 Options.compaction_filter_factory: None
+2021/03/14-07:14:14.610927 7fc14108fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:14:14.610929 7fc14108fa80 Options.table_factory: BlockBasedTable
+2021/03/14-07:14:14.610957 7fc14108fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1f3c820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1f21f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:14:14.610959 7fc14108fa80 Options.write_buffer_size: 134217728
+2021/03/14-07:14:14.610960 7fc14108fa80 Options.max_write_buffer_number: 6
+2021/03/14-07:14:14.610961 7fc14108fa80 Options.compression[0]: NoCompression
+2021/03/14-07:14:14.610962 7fc14108fa80 Options.compression[1]: NoCompression
+2021/03/14-07:14:14.610963 7fc14108fa80 Options.compression[2]: Snappy
+2021/03/14-07:14:14.610964 7fc14108fa80 Options.compression[3]: Snappy
+2021/03/14-07:14:14.610966 7fc14108fa80 Options.compression[4]: Snappy
+2021/03/14-07:14:14.610967 7fc14108fa80 Options.compression[5]: Snappy
+2021/03/14-07:14:14.610968 7fc14108fa80 Options.compression[6]: Snappy
+2021/03/14-07:14:14.610969 7fc14108fa80 Options.bottommost_compression: Disabled
+2021/03/14-07:14:14.610970 7fc14108fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:14:14.610971 7fc14108fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:14:14.610972 7fc14108fa80 Options.num_levels: 7
+2021/03/14-07:14:14.610974 7fc14108fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:14:14.610975 7fc14108fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:14:14.610976 7fc14108fa80 Options.compression_opts.window_bits: -14
+2021/03/14-07:14:14.610977 7fc14108fa80 Options.compression_opts.level: -1
+2021/03/14-07:14:14.610978 7fc14108fa80 Options.compression_opts.strategy: 0
+2021/03/14-07:14:14.610979 7fc14108fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:14:14.610980 7fc14108fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:14:14.610981 7fc14108fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:14:14.610982 7fc14108fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:14:14.610983 7fc14108fa80 Options.target_file_size_base: 67108864
+2021/03/14-07:14:14.610984 7fc14108fa80 Options.target_file_size_multiplier: 1
+2021/03/14-07:14:14.610985 7fc14108fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:14:14.610986 7fc14108fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:14:14.610987 7fc14108fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:14:14.610990 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:14:14.611003 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:14:14.611005 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:14:14.611006 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:14:14.611007 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:14:14.611008 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:14:14.611009 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:14:14.611010 7fc14108fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:14:14.611011 7fc14108fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:14:14.611012 7fc14108fa80 Options.arena_block_size: 16777216
+2021/03/14-07:14:14.611013 7fc14108fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:14:14.611014 7fc14108fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:14:14.611015 7fc14108fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:14:14.611016 7fc14108fa80 Options.disable_auto_compactions: 0
+2021/03/14-07:14:14.611019 7fc14108fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:14:14.611020 7fc14108fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:14:14.611021 7fc14108fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:14:14.611023 7fc14108fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:14:14.611024 7fc14108fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:14:14.611025 7fc14108fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:14:14.611026 7fc14108fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:14:14.611028 7fc14108fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:14:14.611029 7fc14108fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:14:14.611030 7fc14108fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:14:14.611031 7fc14108fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:14:14.611032 7fc14108fa80 Options.table_properties_collectors:
+2021/03/14-07:14:14.611033 7fc14108fa80 Options.inplace_update_support: 0
+2021/03/14-07:14:14.611034 7fc14108fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:14:14.611036 7fc14108fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:14:14.611037 7fc14108fa80 Options.memtable_huge_page_size: 0
+2021/03/14-07:14:14.611038 7fc14108fa80 Options.bloom_locality: 0
+2021/03/14-07:14:14.611039 7fc14108fa80 Options.max_successive_merges: 0
+2021/03/14-07:14:14.611040 7fc14108fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:14:14.611041 7fc14108fa80 Options.paranoid_file_checks: 0
+2021/03/14-07:14:14.611042 7fc14108fa80 Options.force_consistency_checks: 0
+2021/03/14-07:14:14.611043 7fc14108fa80 Options.report_bg_io_stats: 0
+2021/03/14-07:14:14.611825 7fc14108fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:14:14.611830 7fc14108fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:14:14.612112 7fc14108fa80 EVENT_LOG_v1 {"time_micros": 1615702454612093, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:14:14.612122 7fc14108fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:14:15.355356 7fc14108fa80 EVENT_LOG_v1 {"time_micros": 1615702455355352, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615702456106074 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702456106074
new file mode 100644
index 0000000..be0a217
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615702456106074
@@ -0,0 +1,186 @@
+2021/03/14-07:14:15.367706 7fc14108fa80 RocksDB version: 5.11.3
+2021/03/14-07:14:15.367766 7fc14108fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:14:15.367767 7fc14108fa80 Compile date Mar 13 2021
+2021/03/14-07:14:15.367770 7fc14108fa80 DB SUMMARY
+2021/03/14-07:14:15.367913 7fc14108fa80 CURRENT file: CURRENT
+2021/03/14-07:14:15.367914 7fc14108fa80 IDENTITY file: IDENTITY
+2021/03/14-07:14:15.367928 7fc14108fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:14:15.367930 7fc14108fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:14:15.367930 7fc14108fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:14:15.367935 7fc14108fa80 Options.error_if_exists: 0
+2021/03/14-07:14:15.367936 7fc14108fa80 Options.create_if_missing: 1
+2021/03/14-07:14:15.367937 7fc14108fa80 Options.paranoid_checks: 1
+2021/03/14-07:14:15.367937 7fc14108fa80 Options.env: 0x7fc141a49080
+2021/03/14-07:14:15.367938 7fc14108fa80 Options.info_log: 0x1f44fa0
+2021/03/14-07:14:15.367939 7fc14108fa80 Options.max_file_opening_threads: 16
+2021/03/14-07:14:15.367939 7fc14108fa80 Options.statistics: (nil)
+2021/03/14-07:14:15.367940 7fc14108fa80 Options.use_fsync: 0
+2021/03/14-07:14:15.367941 7fc14108fa80 Options.max_log_file_size: 0
+2021/03/14-07:14:15.367941 7fc14108fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:14:15.367942 7fc14108fa80 Options.log_file_time_to_roll: 0
+2021/03/14-07:14:15.367942 7fc14108fa80 Options.keep_log_file_num: 1000
+2021/03/14-07:14:15.367943 7fc14108fa80 Options.recycle_log_file_num: 0
+2021/03/14-07:14:15.367944 7fc14108fa80 Options.allow_fallocate: 1
+2021/03/14-07:14:15.367944 7fc14108fa80 Options.allow_mmap_reads: 0
+2021/03/14-07:14:15.367945 7fc14108fa80 Options.allow_mmap_writes: 0
+2021/03/14-07:14:15.367945 7fc14108fa80 Options.use_direct_reads: 0
+2021/03/14-07:14:15.367946 7fc14108fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:14:15.367946 7fc14108fa80 Options.create_missing_column_families: 0
+2021/03/14-07:14:15.367947 7fc14108fa80 Options.db_log_dir:
+2021/03/14-07:14:15.367947 7fc14108fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:14:15.367948 7fc14108fa80 Options.table_cache_numshardbits: 6
+2021/03/14-07:14:15.367948 7fc14108fa80 Options.max_subcompactions: 1
+2021/03/14-07:14:15.367949 7fc14108fa80 Options.max_background_flushes: -1
+2021/03/14-07:14:15.367950 7fc14108fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:14:15.367950 7fc14108fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:14:15.367951 7fc14108fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:14:15.367951 7fc14108fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:14:15.367952 7fc14108fa80 Options.advise_random_on_open: 1
+2021/03/14-07:14:15.367953 7fc14108fa80 Options.db_write_buffer_size: 0
+2021/03/14-07:14:15.367953 7fc14108fa80 Options.write_buffer_manager: 0x1f2ce90
+2021/03/14-07:14:15.367954 7fc14108fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:14:15.367954 7fc14108fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:14:15.367955 7fc14108fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:14:15.367955 7fc14108fa80 Options.use_adaptive_mutex: 0
+2021/03/14-07:14:15.367956 7fc14108fa80 Options.rate_limiter: (nil)
+2021/03/14-07:14:15.367957 7fc14108fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:14:15.367964 7fc14108fa80 Options.wal_recovery_mode: 2
+2021/03/14-07:14:15.367965 7fc14108fa80 Options.enable_thread_tracking: 0
+2021/03/14-07:14:15.367966 7fc14108fa80 Options.enable_pipelined_write: 0
+2021/03/14-07:14:15.367966 7fc14108fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:14:15.367967 7fc14108fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:14:15.367967 7fc14108fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:14:15.367968 7fc14108fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:14:15.367968 7fc14108fa80 Options.row_cache: None
+2021/03/14-07:14:15.367969 7fc14108fa80 Options.wal_filter: None
+2021/03/14-07:14:15.367970 7fc14108fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:14:15.367970 7fc14108fa80 Options.allow_ingest_behind: 0
+2021/03/14-07:14:15.367971 7fc14108fa80 Options.preserve_deletes: 0
+2021/03/14-07:14:15.367971 7fc14108fa80 Options.two_write_queues: 0
+2021/03/14-07:14:15.367972 7fc14108fa80 Options.manual_wal_flush: 0
+2021/03/14-07:14:15.367973 7fc14108fa80 Options.max_background_jobs: 16
+2021/03/14-07:14:15.367973 7fc14108fa80 Options.max_background_compactions: -1
+2021/03/14-07:14:15.367974 7fc14108fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:14:15.367974 7fc14108fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:14:15.367975 7fc14108fa80 Options.delayed_write_rate : 16777216
+2021/03/14-07:14:15.367976 7fc14108fa80 Options.max_total_wal_size: 0
+2021/03/14-07:14:15.367976 7fc14108fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:14:15.367977 7fc14108fa80 Options.stats_dump_period_sec: 600
+2021/03/14-07:14:15.367977 7fc14108fa80 Options.max_open_files: -1
+2021/03/14-07:14:15.367978 7fc14108fa80 Options.bytes_per_sync: 0
+2021/03/14-07:14:15.367978 7fc14108fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:14:15.367979 7fc14108fa80 Options.compaction_readahead_size: 0
+2021/03/14-07:14:15.367980 7fc14108fa80 Compression algorithms supported:
+2021/03/14-07:14:15.367980 7fc14108fa80 Snappy supported: 1
+2021/03/14-07:14:15.367981 7fc14108fa80 Zlib supported: 1
+2021/03/14-07:14:15.367981 7fc14108fa80 Bzip supported: 1
+2021/03/14-07:14:15.367982 7fc14108fa80 LZ4 supported: 1
+2021/03/14-07:14:15.367983 7fc14108fa80 ZSTDNotFinal supported: 1
+2021/03/14-07:14:15.367987 7fc14108fa80 ZSTD supported: 1
+2021/03/14-07:14:15.367989 7fc14108fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:14:15.367991 7fc14108fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:14:15.368083 7fc14108fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:14:15.368136 7fc14108fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:14:15.368138 7fc14108fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:14:15.368138 7fc14108fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:14:15.368139 7fc14108fa80 Options.compaction_filter: None
+2021/03/14-07:14:15.368140 7fc14108fa80 Options.compaction_filter_factory: None
+2021/03/14-07:14:15.368140 7fc14108fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:14:15.368141 7fc14108fa80 Options.table_factory: BlockBasedTable
+2021/03/14-07:14:15.368156 7fc14108fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1f3c820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1f21f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:14:15.368157 7fc14108fa80 Options.write_buffer_size: 134217728
+2021/03/14-07:14:15.368157 7fc14108fa80 Options.max_write_buffer_number: 6
+2021/03/14-07:14:15.368158 7fc14108fa80 Options.compression[0]: NoCompression
+2021/03/14-07:14:15.368159 7fc14108fa80 Options.compression[1]: NoCompression
+2021/03/14-07:14:15.368160 7fc14108fa80 Options.compression[2]: Snappy
+2021/03/14-07:14:15.368160 7fc14108fa80 Options.compression[3]: Snappy
+2021/03/14-07:14:15.368161 7fc14108fa80 Options.compression[4]: Snappy
+2021/03/14-07:14:15.368161 7fc14108fa80 Options.compression[5]: Snappy
+2021/03/14-07:14:15.368162 7fc14108fa80 Options.compression[6]: Snappy
+2021/03/14-07:14:15.368163 7fc14108fa80 Options.bottommost_compression: Disabled
+2021/03/14-07:14:15.368163 7fc14108fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:14:15.368164 7fc14108fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:14:15.368164 7fc14108fa80 Options.num_levels: 7
+2021/03/14-07:14:15.368165 7fc14108fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:14:15.368166 7fc14108fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:14:15.368166 7fc14108fa80 Options.compression_opts.window_bits: -14
+2021/03/14-07:14:15.368167 7fc14108fa80 Options.compression_opts.level: -1
+2021/03/14-07:14:15.368167 7fc14108fa80 Options.compression_opts.strategy: 0
+2021/03/14-07:14:15.368168 7fc14108fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:14:15.368168 7fc14108fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:14:15.368169 7fc14108fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:14:15.368170 7fc14108fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:14:15.368170 7fc14108fa80 Options.target_file_size_base: 67108864
+2021/03/14-07:14:15.368171 7fc14108fa80 Options.target_file_size_multiplier: 1
+2021/03/14-07:14:15.368171 7fc14108fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:14:15.368172 7fc14108fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:14:15.368172 7fc14108fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:14:15.368174 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:14:15.368181 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:14:15.368182 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:14:15.368182 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:14:15.368183 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:14:15.368183 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:14:15.368184 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:14:15.368185 7fc14108fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:14:15.368185 7fc14108fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:14:15.368186 7fc14108fa80 Options.arena_block_size: 16777216
+2021/03/14-07:14:15.368186 7fc14108fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:14:15.368187 7fc14108fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:14:15.368188 7fc14108fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:14:15.368188 7fc14108fa80 Options.disable_auto_compactions: 0
+2021/03/14-07:14:15.368190 7fc14108fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:14:15.368191 7fc14108fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:14:15.368191 7fc14108fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:14:15.368192 7fc14108fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:14:15.368192 7fc14108fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:14:15.368193 7fc14108fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:14:15.368193 7fc14108fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:14:15.368194 7fc14108fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:14:15.368195 7fc14108fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:14:15.368196 7fc14108fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:14:15.368196 7fc14108fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:14:15.368197 7fc14108fa80 Options.table_properties_collectors:
+2021/03/14-07:14:15.368197 7fc14108fa80 Options.inplace_update_support: 0
+2021/03/14-07:14:15.368198 7fc14108fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:14:15.368198 7fc14108fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:14:15.368199 7fc14108fa80 Options.memtable_huge_page_size: 0
+2021/03/14-07:14:15.368200 7fc14108fa80 Options.bloom_locality: 0
+2021/03/14-07:14:15.368200 7fc14108fa80 Options.max_successive_merges: 0
+2021/03/14-07:14:15.368201 7fc14108fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:14:15.368202 7fc14108fa80 Options.paranoid_file_checks: 0
+2021/03/14-07:14:15.368202 7fc14108fa80 Options.force_consistency_checks: 0
+2021/03/14-07:14:15.368203 7fc14108fa80 Options.report_bg_io_stats: 0
+2021/03/14-07:14:15.368589 7fc14108fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:14:15.368592 7fc14108fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:14:15.368744 7fc14108fa80 EVENT_LOG_v1 {"time_micros": 1615702455368734, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:14:15.368750 7fc14108fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:14:16.094297 7fc14108fa80 EVENT_LOG_v1 {"time_micros": 1615702456094293, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703073885879 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703073885879
new file mode 100644
index 0000000..58e3e37
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703073885879
@@ -0,0 +1,186 @@
+2021/03/14-07:14:16.106489 7fc14108fa80 RocksDB version: 5.11.3
+2021/03/14-07:14:16.106552 7fc14108fa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:14:16.106554 7fc14108fa80 Compile date Mar 13 2021
+2021/03/14-07:14:16.106556 7fc14108fa80 DB SUMMARY
+2021/03/14-07:14:16.106699 7fc14108fa80 CURRENT file: CURRENT
+2021/03/14-07:14:16.106700 7fc14108fa80 IDENTITY file: IDENTITY
+2021/03/14-07:14:16.106714 7fc14108fa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:14:16.106715 7fc14108fa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:14:16.106716 7fc14108fa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:14:16.106721 7fc14108fa80 Options.error_if_exists: 0
+2021/03/14-07:14:16.106722 7fc14108fa80 Options.create_if_missing: 1
+2021/03/14-07:14:16.106722 7fc14108fa80 Options.paranoid_checks: 1
+2021/03/14-07:14:16.106723 7fc14108fa80 Options.env: 0x7fc141a49080
+2021/03/14-07:14:16.106723 7fc14108fa80 Options.info_log: 0x1f44fa0
+2021/03/14-07:14:16.106724 7fc14108fa80 Options.max_file_opening_threads: 16
+2021/03/14-07:14:16.106725 7fc14108fa80 Options.statistics: (nil)
+2021/03/14-07:14:16.106725 7fc14108fa80 Options.use_fsync: 0
+2021/03/14-07:14:16.106726 7fc14108fa80 Options.max_log_file_size: 0
+2021/03/14-07:14:16.106726 7fc14108fa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:14:16.106727 7fc14108fa80 Options.log_file_time_to_roll: 0
+2021/03/14-07:14:16.106728 7fc14108fa80 Options.keep_log_file_num: 1000
+2021/03/14-07:14:16.106728 7fc14108fa80 Options.recycle_log_file_num: 0
+2021/03/14-07:14:16.106729 7fc14108fa80 Options.allow_fallocate: 1
+2021/03/14-07:14:16.106729 7fc14108fa80 Options.allow_mmap_reads: 0
+2021/03/14-07:14:16.106730 7fc14108fa80 Options.allow_mmap_writes: 0
+2021/03/14-07:14:16.106730 7fc14108fa80 Options.use_direct_reads: 0
+2021/03/14-07:14:16.106731 7fc14108fa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:14:16.106732 7fc14108fa80 Options.create_missing_column_families: 0
+2021/03/14-07:14:16.106732 7fc14108fa80 Options.db_log_dir:
+2021/03/14-07:14:16.106733 7fc14108fa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:14:16.106733 7fc14108fa80 Options.table_cache_numshardbits: 6
+2021/03/14-07:14:16.106734 7fc14108fa80 Options.max_subcompactions: 1
+2021/03/14-07:14:16.106734 7fc14108fa80 Options.max_background_flushes: -1
+2021/03/14-07:14:16.106735 7fc14108fa80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:14:16.106736 7fc14108fa80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:14:16.106736 7fc14108fa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:14:16.106737 7fc14108fa80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:14:16.106737 7fc14108fa80 Options.advise_random_on_open: 1
+2021/03/14-07:14:16.106738 7fc14108fa80 Options.db_write_buffer_size: 0
+2021/03/14-07:14:16.106738 7fc14108fa80 Options.write_buffer_manager: 0x1f2ce90
+2021/03/14-07:14:16.106739 7fc14108fa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:14:16.106739 7fc14108fa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:14:16.106740 7fc14108fa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:14:16.106741 7fc14108fa80 Options.use_adaptive_mutex: 0
+2021/03/14-07:14:16.106741 7fc14108fa80 Options.rate_limiter: (nil)
+2021/03/14-07:14:16.106743 7fc14108fa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:14:16.106750 7fc14108fa80 Options.wal_recovery_mode: 2
+2021/03/14-07:14:16.106750 7fc14108fa80 Options.enable_thread_tracking: 0
+2021/03/14-07:14:16.106751 7fc14108fa80 Options.enable_pipelined_write: 0
+2021/03/14-07:14:16.106751 7fc14108fa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:14:16.106752 7fc14108fa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:14:16.106753 7fc14108fa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:14:16.106753 7fc14108fa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:14:16.106754 7fc14108fa80 Options.row_cache: None
+2021/03/14-07:14:16.106754 7fc14108fa80 Options.wal_filter: None
+2021/03/14-07:14:16.106755 7fc14108fa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:14:16.106755 7fc14108fa80 Options.allow_ingest_behind: 0
+2021/03/14-07:14:16.106756 7fc14108fa80 Options.preserve_deletes: 0
+2021/03/14-07:14:16.106757 7fc14108fa80 Options.two_write_queues: 0
+2021/03/14-07:14:16.106757 7fc14108fa80 Options.manual_wal_flush: 0
+2021/03/14-07:14:16.106758 7fc14108fa80 Options.max_background_jobs: 16
+2021/03/14-07:14:16.106759 7fc14108fa80 Options.max_background_compactions: -1
+2021/03/14-07:14:16.106760 7fc14108fa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:14:16.106760 7fc14108fa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:14:16.106761 7fc14108fa80 Options.delayed_write_rate : 16777216
+2021/03/14-07:14:16.106761 7fc14108fa80 Options.max_total_wal_size: 0
+2021/03/14-07:14:16.106762 7fc14108fa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:14:16.106762 7fc14108fa80 Options.stats_dump_period_sec: 600
+2021/03/14-07:14:16.106763 7fc14108fa80 Options.max_open_files: -1
+2021/03/14-07:14:16.106764 7fc14108fa80 Options.bytes_per_sync: 0
+2021/03/14-07:14:16.106764 7fc14108fa80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:14:16.106765 7fc14108fa80 Options.compaction_readahead_size: 0
+2021/03/14-07:14:16.106765 7fc14108fa80 Compression algorithms supported:
+2021/03/14-07:14:16.106766 7fc14108fa80 Snappy supported: 1
+2021/03/14-07:14:16.106766 7fc14108fa80 Zlib supported: 1
+2021/03/14-07:14:16.106767 7fc14108fa80 Bzip supported: 1
+2021/03/14-07:14:16.106767 7fc14108fa80 LZ4 supported: 1
+2021/03/14-07:14:16.106768 7fc14108fa80 ZSTDNotFinal supported: 1
+2021/03/14-07:14:16.106772 7fc14108fa80 ZSTD supported: 1
+2021/03/14-07:14:16.106775 7fc14108fa80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:14:16.106777 7fc14108fa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:14:16.106869 7fc14108fa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:14:16.106922 7fc14108fa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:14:16.106923 7fc14108fa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:14:16.106924 7fc14108fa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:14:16.106925 7fc14108fa80 Options.compaction_filter: None
+2021/03/14-07:14:16.106926 7fc14108fa80 Options.compaction_filter_factory: None
+2021/03/14-07:14:16.106926 7fc14108fa80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:14:16.106927 7fc14108fa80 Options.table_factory: BlockBasedTable
+2021/03/14-07:14:16.106942 7fc14108fa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1f3c820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1f21f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:14:16.106943 7fc14108fa80 Options.write_buffer_size: 134217728
+2021/03/14-07:14:16.106944 7fc14108fa80 Options.max_write_buffer_number: 6
+2021/03/14-07:14:16.106945 7fc14108fa80 Options.compression[0]: NoCompression
+2021/03/14-07:14:16.106945 7fc14108fa80 Options.compression[1]: NoCompression
+2021/03/14-07:14:16.106946 7fc14108fa80 Options.compression[2]: Snappy
+2021/03/14-07:14:16.106946 7fc14108fa80 Options.compression[3]: Snappy
+2021/03/14-07:14:16.106947 7fc14108fa80 Options.compression[4]: Snappy
+2021/03/14-07:14:16.106948 7fc14108fa80 Options.compression[5]: Snappy
+2021/03/14-07:14:16.106948 7fc14108fa80 Options.compression[6]: Snappy
+2021/03/14-07:14:16.106949 7fc14108fa80 Options.bottommost_compression: Disabled
+2021/03/14-07:14:16.106950 7fc14108fa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:14:16.106950 7fc14108fa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:14:16.106951 7fc14108fa80 Options.num_levels: 7
+2021/03/14-07:14:16.106951 7fc14108fa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:14:16.106952 7fc14108fa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:14:16.106952 7fc14108fa80 Options.compression_opts.window_bits: -14
+2021/03/14-07:14:16.106953 7fc14108fa80 Options.compression_opts.level: -1
+2021/03/14-07:14:16.106954 7fc14108fa80 Options.compression_opts.strategy: 0
+2021/03/14-07:14:16.106954 7fc14108fa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:14:16.106955 7fc14108fa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:14:16.106955 7fc14108fa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:14:16.106956 7fc14108fa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:14:16.106956 7fc14108fa80 Options.target_file_size_base: 67108864
+2021/03/14-07:14:16.106957 7fc14108fa80 Options.target_file_size_multiplier: 1
+2021/03/14-07:14:16.106958 7fc14108fa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:14:16.106958 7fc14108fa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:14:16.106959 7fc14108fa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:14:16.106960 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:14:16.106967 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:14:16.106968 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:14:16.106969 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:14:16.106969 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:14:16.106970 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:14:16.106970 7fc14108fa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:14:16.106971 7fc14108fa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:14:16.106971 7fc14108fa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:14:16.106972 7fc14108fa80 Options.arena_block_size: 16777216
+2021/03/14-07:14:16.106972 7fc14108fa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:14:16.106973 7fc14108fa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:14:16.106974 7fc14108fa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:14:16.106974 7fc14108fa80 Options.disable_auto_compactions: 0
+2021/03/14-07:14:16.106976 7fc14108fa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:14:16.106977 7fc14108fa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:14:16.106977 7fc14108fa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:14:16.106978 7fc14108fa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:14:16.106978 7fc14108fa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:14:16.106979 7fc14108fa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:14:16.106980 7fc14108fa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:14:16.106981 7fc14108fa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:14:16.106981 7fc14108fa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:14:16.106982 7fc14108fa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:14:16.106982 7fc14108fa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:14:16.106983 7fc14108fa80 Options.table_properties_collectors:
+2021/03/14-07:14:16.106983 7fc14108fa80 Options.inplace_update_support: 0
+2021/03/14-07:14:16.106984 7fc14108fa80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:14:16.106985 7fc14108fa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:14:16.106985 7fc14108fa80 Options.memtable_huge_page_size: 0
+2021/03/14-07:14:16.106986 7fc14108fa80 Options.bloom_locality: 0
+2021/03/14-07:14:16.106987 7fc14108fa80 Options.max_successive_merges: 0
+2021/03/14-07:14:16.106987 7fc14108fa80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:14:16.106988 7fc14108fa80 Options.paranoid_file_checks: 0
+2021/03/14-07:14:16.106988 7fc14108fa80 Options.force_consistency_checks: 0
+2021/03/14-07:14:16.106989 7fc14108fa80 Options.report_bg_io_stats: 0
+2021/03/14-07:14:16.107364 7fc14108fa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:14:16.107367 7fc14108fa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:14:16.107517 7fc14108fa80 EVENT_LOG_v1 {"time_micros": 1615702456107507, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:14:16.107523 7fc14108fa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:14:16.837828 7fc14108fa80 EVENT_LOG_v1 {"time_micros": 1615702456837824, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703074650736 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703074650736
new file mode 100644
index 0000000..f866cbe
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703074650736
@@ -0,0 +1,186 @@
+2021/03/14-07:24:33.886819 7f335c45ea80 RocksDB version: 5.11.3
+2021/03/14-07:24:33.886986 7f335c45ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:24:33.886990 7f335c45ea80 Compile date Mar 13 2021
+2021/03/14-07:24:33.886994 7f335c45ea80 DB SUMMARY
+2021/03/14-07:24:33.887219 7f335c45ea80 CURRENT file: CURRENT
+2021/03/14-07:24:33.887220 7f335c45ea80 IDENTITY file: IDENTITY
+2021/03/14-07:24:33.887237 7f335c45ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:24:33.887247 7f335c45ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:24:33.887248 7f335c45ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:24:33.887254 7f335c45ea80 Options.error_if_exists: 0
+2021/03/14-07:24:33.887255 7f335c45ea80 Options.create_if_missing: 1
+2021/03/14-07:24:33.887256 7f335c45ea80 Options.paranoid_checks: 1
+2021/03/14-07:24:33.887256 7f335c45ea80 Options.env: 0x7f335ce18080
+2021/03/14-07:24:33.887257 7f335c45ea80 Options.info_log: 0x2668ca0
+2021/03/14-07:24:33.887258 7f335c45ea80 Options.max_file_opening_threads: 16
+2021/03/14-07:24:33.887258 7f335c45ea80 Options.statistics: (nil)
+2021/03/14-07:24:33.887259 7f335c45ea80 Options.use_fsync: 0
+2021/03/14-07:24:33.887260 7f335c45ea80 Options.max_log_file_size: 0
+2021/03/14-07:24:33.887260 7f335c45ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:24:33.887261 7f335c45ea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:24:33.887262 7f335c45ea80 Options.keep_log_file_num: 1000
+2021/03/14-07:24:33.887262 7f335c45ea80 Options.recycle_log_file_num: 0
+2021/03/14-07:24:33.887263 7f335c45ea80 Options.allow_fallocate: 1
+2021/03/14-07:24:33.887264 7f335c45ea80 Options.allow_mmap_reads: 0
+2021/03/14-07:24:33.887264 7f335c45ea80 Options.allow_mmap_writes: 0
+2021/03/14-07:24:33.887265 7f335c45ea80 Options.use_direct_reads: 0
+2021/03/14-07:24:33.887265 7f335c45ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:24:33.887266 7f335c45ea80 Options.create_missing_column_families: 0
+2021/03/14-07:24:33.887267 7f335c45ea80 Options.db_log_dir:
+2021/03/14-07:24:33.887267 7f335c45ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:24:33.887268 7f335c45ea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:24:33.887269 7f335c45ea80 Options.max_subcompactions: 1
+2021/03/14-07:24:33.887269 7f335c45ea80 Options.max_background_flushes: -1
+2021/03/14-07:24:33.887270 7f335c45ea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:24:33.887270 7f335c45ea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:24:33.887271 7f335c45ea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:24:33.887272 7f335c45ea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:24:33.887272 7f335c45ea80 Options.advise_random_on_open: 1
+2021/03/14-07:24:33.887273 7f335c45ea80 Options.db_write_buffer_size: 0
+2021/03/14-07:24:33.887274 7f335c45ea80 Options.write_buffer_manager: 0x2650b90
+2021/03/14-07:24:33.887274 7f335c45ea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:24:33.887275 7f335c45ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:24:33.887275 7f335c45ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:24:33.887276 7f335c45ea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:24:33.887277 7f335c45ea80 Options.rate_limiter: (nil)
+2021/03/14-07:24:33.887278 7f335c45ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:24:33.887289 7f335c45ea80 Options.wal_recovery_mode: 2
+2021/03/14-07:24:33.887290 7f335c45ea80 Options.enable_thread_tracking: 0
+2021/03/14-07:24:33.887290 7f335c45ea80 Options.enable_pipelined_write: 0
+2021/03/14-07:24:33.887291 7f335c45ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:24:33.887291 7f335c45ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:24:33.887292 7f335c45ea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:24:33.887293 7f335c45ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:24:33.887293 7f335c45ea80 Options.row_cache: None
+2021/03/14-07:24:33.887294 7f335c45ea80 Options.wal_filter: None
+2021/03/14-07:24:33.887295 7f335c45ea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:24:33.887295 7f335c45ea80 Options.allow_ingest_behind: 0
+2021/03/14-07:24:33.887296 7f335c45ea80 Options.preserve_deletes: 0
+2021/03/14-07:24:33.887296 7f335c45ea80 Options.two_write_queues: 0
+2021/03/14-07:24:33.887297 7f335c45ea80 Options.manual_wal_flush: 0
+2021/03/14-07:24:33.887298 7f335c45ea80 Options.max_background_jobs: 16
+2021/03/14-07:24:33.887299 7f335c45ea80 Options.max_background_compactions: -1
+2021/03/14-07:24:33.887299 7f335c45ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:24:33.887300 7f335c45ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:24:33.887301 7f335c45ea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:24:33.887301 7f335c45ea80 Options.max_total_wal_size: 0
+2021/03/14-07:24:33.887302 7f335c45ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:24:33.887303 7f335c45ea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:24:33.887303 7f335c45ea80 Options.max_open_files: -1
+2021/03/14-07:24:33.887304 7f335c45ea80 Options.bytes_per_sync: 0
+2021/03/14-07:24:33.887304 7f335c45ea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:24:33.887305 7f335c45ea80 Options.compaction_readahead_size: 0
+2021/03/14-07:24:33.887306 7f335c45ea80 Compression algorithms supported:
+2021/03/14-07:24:33.887306 7f335c45ea80 Snappy supported: 1
+2021/03/14-07:24:33.887307 7f335c45ea80 Zlib supported: 1
+2021/03/14-07:24:33.887307 7f335c45ea80 Bzip supported: 1
+2021/03/14-07:24:33.887308 7f335c45ea80 LZ4 supported: 1
+2021/03/14-07:24:33.887309 7f335c45ea80 ZSTDNotFinal supported: 1
+2021/03/14-07:24:33.887314 7f335c45ea80 ZSTD supported: 1
+2021/03/14-07:24:33.887319 7f335c45ea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:24:33.887320 7f335c45ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:24:33.887477 7f335c45ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:24:33.887546 7f335c45ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:24:33.887547 7f335c45ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:24:33.887548 7f335c45ea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:24:33.887549 7f335c45ea80 Options.compaction_filter: None
+2021/03/14-07:24:33.887550 7f335c45ea80 Options.compaction_filter_factory: None
+2021/03/14-07:24:33.887551 7f335c45ea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:24:33.887552 7f335c45ea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:24:33.887566 7f335c45ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2660520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2645c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:24:33.887566 7f335c45ea80 Options.write_buffer_size: 134217728
+2021/03/14-07:24:33.887567 7f335c45ea80 Options.max_write_buffer_number: 6
+2021/03/14-07:24:33.887568 7f335c45ea80 Options.compression[0]: NoCompression
+2021/03/14-07:24:33.887569 7f335c45ea80 Options.compression[1]: NoCompression
+2021/03/14-07:24:33.887569 7f335c45ea80 Options.compression[2]: Snappy
+2021/03/14-07:24:33.887570 7f335c45ea80 Options.compression[3]: Snappy
+2021/03/14-07:24:33.887570 7f335c45ea80 Options.compression[4]: Snappy
+2021/03/14-07:24:33.887571 7f335c45ea80 Options.compression[5]: Snappy
+2021/03/14-07:24:33.887572 7f335c45ea80 Options.compression[6]: Snappy
+2021/03/14-07:24:33.887572 7f335c45ea80 Options.bottommost_compression: Disabled
+2021/03/14-07:24:33.887573 7f335c45ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:24:33.887574 7f335c45ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:24:33.887574 7f335c45ea80 Options.num_levels: 7
+2021/03/14-07:24:33.887575 7f335c45ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:24:33.887576 7f335c45ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:24:33.887576 7f335c45ea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:24:33.887577 7f335c45ea80 Options.compression_opts.level: -1
+2021/03/14-07:24:33.887578 7f335c45ea80 Options.compression_opts.strategy: 0
+2021/03/14-07:24:33.887578 7f335c45ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:24:33.887579 7f335c45ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:24:33.887579 7f335c45ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:24:33.887580 7f335c45ea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:24:33.887581 7f335c45ea80 Options.target_file_size_base: 67108864
+2021/03/14-07:24:33.887581 7f335c45ea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:24:33.887582 7f335c45ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:24:33.887583 7f335c45ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:24:33.887583 7f335c45ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:24:33.887585 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:24:33.887594 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:24:33.887594 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:24:33.887595 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:24:33.887596 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:24:33.887596 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:24:33.887597 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:24:33.887597 7f335c45ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:24:33.887598 7f335c45ea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:24:33.887599 7f335c45ea80 Options.arena_block_size: 16777216
+2021/03/14-07:24:33.887599 7f335c45ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:24:33.887600 7f335c45ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:24:33.887601 7f335c45ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:24:33.887601 7f335c45ea80 Options.disable_auto_compactions: 0
+2021/03/14-07:24:33.887603 7f335c45ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:24:33.887604 7f335c45ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:24:33.887605 7f335c45ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:24:33.887605 7f335c45ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:24:33.887606 7f335c45ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:24:33.887607 7f335c45ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:24:33.887607 7f335c45ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:24:33.887608 7f335c45ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:24:33.887609 7f335c45ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:24:33.887610 7f335c45ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:24:33.887610 7f335c45ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:24:33.887611 7f335c45ea80 Options.table_properties_collectors:
+2021/03/14-07:24:33.887611 7f335c45ea80 Options.inplace_update_support: 0
+2021/03/14-07:24:33.887612 7f335c45ea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:24:33.887613 7f335c45ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:24:33.887614 7f335c45ea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:24:33.887614 7f335c45ea80 Options.bloom_locality: 0
+2021/03/14-07:24:33.887615 7f335c45ea80 Options.max_successive_merges: 0
+2021/03/14-07:24:33.887615 7f335c45ea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:24:33.887616 7f335c45ea80 Options.paranoid_file_checks: 0
+2021/03/14-07:24:33.887616 7f335c45ea80 Options.force_consistency_checks: 0
+2021/03/14-07:24:33.887617 7f335c45ea80 Options.report_bg_io_stats: 0
+2021/03/14-07:24:33.888051 7f335c45ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:24:33.888054 7f335c45ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:24:33.888223 7f335c45ea80 EVENT_LOG_v1 {"time_micros": 1615703073888212, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:24:33.888229 7f335c45ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:24:34.636623 7f335c45ea80 EVENT_LOG_v1 {"time_micros": 1615703074636619, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703075410164 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703075410164
new file mode 100644
index 0000000..cce356b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703075410164
@@ -0,0 +1,186 @@
+2021/03/14-07:24:34.651177 7f335c45ea80 RocksDB version: 5.11.3
+2021/03/14-07:24:34.651237 7f335c45ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:24:34.651245 7f335c45ea80 Compile date Mar 13 2021
+2021/03/14-07:24:34.651248 7f335c45ea80 DB SUMMARY
+2021/03/14-07:24:34.651398 7f335c45ea80 CURRENT file: CURRENT
+2021/03/14-07:24:34.651399 7f335c45ea80 IDENTITY file: IDENTITY
+2021/03/14-07:24:34.651413 7f335c45ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:24:34.651414 7f335c45ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:24:34.651415 7f335c45ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:24:34.651420 7f335c45ea80 Options.error_if_exists: 0
+2021/03/14-07:24:34.651421 7f335c45ea80 Options.create_if_missing: 1
+2021/03/14-07:24:34.651422 7f335c45ea80 Options.paranoid_checks: 1
+2021/03/14-07:24:34.651422 7f335c45ea80 Options.env: 0x7f335ce18080
+2021/03/14-07:24:34.651423 7f335c45ea80 Options.info_log: 0x2668ca0
+2021/03/14-07:24:34.651424 7f335c45ea80 Options.max_file_opening_threads: 16
+2021/03/14-07:24:34.651424 7f335c45ea80 Options.statistics: (nil)
+2021/03/14-07:24:34.651425 7f335c45ea80 Options.use_fsync: 0
+2021/03/14-07:24:34.651425 7f335c45ea80 Options.max_log_file_size: 0
+2021/03/14-07:24:34.651426 7f335c45ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:24:34.651427 7f335c45ea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:24:34.651427 7f335c45ea80 Options.keep_log_file_num: 1000
+2021/03/14-07:24:34.651428 7f335c45ea80 Options.recycle_log_file_num: 0
+2021/03/14-07:24:34.651428 7f335c45ea80 Options.allow_fallocate: 1
+2021/03/14-07:24:34.651429 7f335c45ea80 Options.allow_mmap_reads: 0
+2021/03/14-07:24:34.651429 7f335c45ea80 Options.allow_mmap_writes: 0
+2021/03/14-07:24:34.651430 7f335c45ea80 Options.use_direct_reads: 0
+2021/03/14-07:24:34.651430 7f335c45ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:24:34.651431 7f335c45ea80 Options.create_missing_column_families: 0
+2021/03/14-07:24:34.651432 7f335c45ea80 Options.db_log_dir:
+2021/03/14-07:24:34.651432 7f335c45ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:24:34.651433 7f335c45ea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:24:34.651433 7f335c45ea80 Options.max_subcompactions: 1
+2021/03/14-07:24:34.651434 7f335c45ea80 Options.max_background_flushes: -1
+2021/03/14-07:24:34.651435 7f335c45ea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:24:34.651435 7f335c45ea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:24:34.651436 7f335c45ea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:24:34.651436 7f335c45ea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:24:34.651437 7f335c45ea80 Options.advise_random_on_open: 1
+2021/03/14-07:24:34.651437 7f335c45ea80 Options.db_write_buffer_size: 0
+2021/03/14-07:24:34.651438 7f335c45ea80 Options.write_buffer_manager: 0x2650b90
+2021/03/14-07:24:34.651438 7f335c45ea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:24:34.651439 7f335c45ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:24:34.651440 7f335c45ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:24:34.651440 7f335c45ea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:24:34.651441 7f335c45ea80 Options.rate_limiter: (nil)
+2021/03/14-07:24:34.651443 7f335c45ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:24:34.651452 7f335c45ea80 Options.wal_recovery_mode: 2
+2021/03/14-07:24:34.651452 7f335c45ea80 Options.enable_thread_tracking: 0
+2021/03/14-07:24:34.651453 7f335c45ea80 Options.enable_pipelined_write: 0
+2021/03/14-07:24:34.651453 7f335c45ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:24:34.651454 7f335c45ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:24:34.651454 7f335c45ea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:24:34.651455 7f335c45ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:24:34.651456 7f335c45ea80 Options.row_cache: None
+2021/03/14-07:24:34.651456 7f335c45ea80 Options.wal_filter: None
+2021/03/14-07:24:34.651457 7f335c45ea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:24:34.651457 7f335c45ea80 Options.allow_ingest_behind: 0
+2021/03/14-07:24:34.651458 7f335c45ea80 Options.preserve_deletes: 0
+2021/03/14-07:24:34.651458 7f335c45ea80 Options.two_write_queues: 0
+2021/03/14-07:24:34.651459 7f335c45ea80 Options.manual_wal_flush: 0
+2021/03/14-07:24:34.651460 7f335c45ea80 Options.max_background_jobs: 16
+2021/03/14-07:24:34.651461 7f335c45ea80 Options.max_background_compactions: -1
+2021/03/14-07:24:34.651461 7f335c45ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:24:34.651462 7f335c45ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:24:34.651462 7f335c45ea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:24:34.651463 7f335c45ea80 Options.max_total_wal_size: 0
+2021/03/14-07:24:34.651464 7f335c45ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:24:34.651464 7f335c45ea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:24:34.651465 7f335c45ea80 Options.max_open_files: -1
+2021/03/14-07:24:34.651465 7f335c45ea80 Options.bytes_per_sync: 0
+2021/03/14-07:24:34.651466 7f335c45ea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:24:34.651466 7f335c45ea80 Options.compaction_readahead_size: 0
+2021/03/14-07:24:34.651467 7f335c45ea80 Compression algorithms supported:
+2021/03/14-07:24:34.651468 7f335c45ea80 Snappy supported: 1
+2021/03/14-07:24:34.651468 7f335c45ea80 Zlib supported: 1
+2021/03/14-07:24:34.651469 7f335c45ea80 Bzip supported: 1
+2021/03/14-07:24:34.651469 7f335c45ea80 LZ4 supported: 1
+2021/03/14-07:24:34.651470 7f335c45ea80 ZSTDNotFinal supported: 1
+2021/03/14-07:24:34.651475 7f335c45ea80 ZSTD supported: 1
+2021/03/14-07:24:34.651478 7f335c45ea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:24:34.651479 7f335c45ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:24:34.651596 7f335c45ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:24:34.651655 7f335c45ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:24:34.651657 7f335c45ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:24:34.651658 7f335c45ea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:24:34.651659 7f335c45ea80 Options.compaction_filter: None
+2021/03/14-07:24:34.651659 7f335c45ea80 Options.compaction_filter_factory: None
+2021/03/14-07:24:34.651660 7f335c45ea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:24:34.651661 7f335c45ea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:24:34.651674 7f335c45ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2660520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2645c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:24:34.651675 7f335c45ea80 Options.write_buffer_size: 134217728
+2021/03/14-07:24:34.651675 7f335c45ea80 Options.max_write_buffer_number: 6
+2021/03/14-07:24:34.651676 7f335c45ea80 Options.compression[0]: NoCompression
+2021/03/14-07:24:34.651677 7f335c45ea80 Options.compression[1]: NoCompression
+2021/03/14-07:24:34.651677 7f335c45ea80 Options.compression[2]: Snappy
+2021/03/14-07:24:34.651678 7f335c45ea80 Options.compression[3]: Snappy
+2021/03/14-07:24:34.651679 7f335c45ea80 Options.compression[4]: Snappy
+2021/03/14-07:24:34.651679 7f335c45ea80 Options.compression[5]: Snappy
+2021/03/14-07:24:34.651680 7f335c45ea80 Options.compression[6]: Snappy
+2021/03/14-07:24:34.651680 7f335c45ea80 Options.bottommost_compression: Disabled
+2021/03/14-07:24:34.651681 7f335c45ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:24:34.651682 7f335c45ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:24:34.651682 7f335c45ea80 Options.num_levels: 7
+2021/03/14-07:24:34.651683 7f335c45ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:24:34.651683 7f335c45ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:24:34.651684 7f335c45ea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:24:34.651685 7f335c45ea80 Options.compression_opts.level: -1
+2021/03/14-07:24:34.651685 7f335c45ea80 Options.compression_opts.strategy: 0
+2021/03/14-07:24:34.651686 7f335c45ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:24:34.651686 7f335c45ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:24:34.651687 7f335c45ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:24:34.651687 7f335c45ea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:24:34.651688 7f335c45ea80 Options.target_file_size_base: 67108864
+2021/03/14-07:24:34.651689 7f335c45ea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:24:34.651689 7f335c45ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:24:34.651690 7f335c45ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:24:34.651690 7f335c45ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:24:34.651692 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:24:34.651700 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:24:34.651700 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:24:34.651701 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:24:34.651701 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:24:34.651702 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:24:34.651703 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:24:34.651703 7f335c45ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:24:34.651704 7f335c45ea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:24:34.651704 7f335c45ea80 Options.arena_block_size: 16777216
+2021/03/14-07:24:34.651705 7f335c45ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:24:34.651705 7f335c45ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:24:34.651706 7f335c45ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:24:34.651707 7f335c45ea80 Options.disable_auto_compactions: 0
+2021/03/14-07:24:34.651708 7f335c45ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:24:34.651709 7f335c45ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:24:34.651709 7f335c45ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:24:34.651710 7f335c45ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:24:34.651711 7f335c45ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:24:34.651711 7f335c45ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:24:34.651712 7f335c45ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:24:34.651713 7f335c45ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:24:34.651714 7f335c45ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:24:34.651714 7f335c45ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:24:34.651715 7f335c45ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:24:34.651715 7f335c45ea80 Options.table_properties_collectors:
+2021/03/14-07:24:34.651716 7f335c45ea80 Options.inplace_update_support: 0
+2021/03/14-07:24:34.651716 7f335c45ea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:24:34.651717 7f335c45ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:24:34.651718 7f335c45ea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:24:34.651718 7f335c45ea80 Options.bloom_locality: 0
+2021/03/14-07:24:34.651719 7f335c45ea80 Options.max_successive_merges: 0
+2021/03/14-07:24:34.651719 7f335c45ea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:24:34.651720 7f335c45ea80 Options.paranoid_file_checks: 0
+2021/03/14-07:24:34.651721 7f335c45ea80 Options.force_consistency_checks: 0
+2021/03/14-07:24:34.651721 7f335c45ea80 Options.report_bg_io_stats: 0
+2021/03/14-07:24:34.652130 7f335c45ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:24:34.652133 7f335c45ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:24:34.652300 7f335c45ea80 EVENT_LOG_v1 {"time_micros": 1615703074652288, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:24:34.652306 7f335c45ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:24:35.397839 7f335c45ea80 EVENT_LOG_v1 {"time_micros": 1615703075397835, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703076127225 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703076127225
new file mode 100644
index 0000000..fb8bbce
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703076127225
@@ -0,0 +1,186 @@
+2021/03/14-07:24:35.410571 7f335c45ea80 RocksDB version: 5.11.3
+2021/03/14-07:24:35.410684 7f335c45ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:24:35.410685 7f335c45ea80 Compile date Mar 13 2021
+2021/03/14-07:24:35.410688 7f335c45ea80 DB SUMMARY
+2021/03/14-07:24:35.410834 7f335c45ea80 CURRENT file: CURRENT
+2021/03/14-07:24:35.410835 7f335c45ea80 IDENTITY file: IDENTITY
+2021/03/14-07:24:35.410850 7f335c45ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:24:35.410851 7f335c45ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:24:35.410852 7f335c45ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:24:35.410857 7f335c45ea80 Options.error_if_exists: 0
+2021/03/14-07:24:35.410858 7f335c45ea80 Options.create_if_missing: 1
+2021/03/14-07:24:35.410858 7f335c45ea80 Options.paranoid_checks: 1
+2021/03/14-07:24:35.410859 7f335c45ea80 Options.env: 0x7f335ce18080
+2021/03/14-07:24:35.410859 7f335c45ea80 Options.info_log: 0x2668ca0
+2021/03/14-07:24:35.410860 7f335c45ea80 Options.max_file_opening_threads: 16
+2021/03/14-07:24:35.410860 7f335c45ea80 Options.statistics: (nil)
+2021/03/14-07:24:35.410861 7f335c45ea80 Options.use_fsync: 0
+2021/03/14-07:24:35.410862 7f335c45ea80 Options.max_log_file_size: 0
+2021/03/14-07:24:35.410862 7f335c45ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:24:35.410863 7f335c45ea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:24:35.410863 7f335c45ea80 Options.keep_log_file_num: 1000
+2021/03/14-07:24:35.410864 7f335c45ea80 Options.recycle_log_file_num: 0
+2021/03/14-07:24:35.410865 7f335c45ea80 Options.allow_fallocate: 1
+2021/03/14-07:24:35.410865 7f335c45ea80 Options.allow_mmap_reads: 0
+2021/03/14-07:24:35.410866 7f335c45ea80 Options.allow_mmap_writes: 0
+2021/03/14-07:24:35.410866 7f335c45ea80 Options.use_direct_reads: 0
+2021/03/14-07:24:35.410867 7f335c45ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:24:35.410867 7f335c45ea80 Options.create_missing_column_families: 0
+2021/03/14-07:24:35.410868 7f335c45ea80 Options.db_log_dir:
+2021/03/14-07:24:35.410868 7f335c45ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:24:35.410869 7f335c45ea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:24:35.410870 7f335c45ea80 Options.max_subcompactions: 1
+2021/03/14-07:24:35.410870 7f335c45ea80 Options.max_background_flushes: -1
+2021/03/14-07:24:35.410871 7f335c45ea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:24:35.410871 7f335c45ea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:24:35.410872 7f335c45ea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:24:35.410872 7f335c45ea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:24:35.410873 7f335c45ea80 Options.advise_random_on_open: 1
+2021/03/14-07:24:35.410874 7f335c45ea80 Options.db_write_buffer_size: 0
+2021/03/14-07:24:35.410874 7f335c45ea80 Options.write_buffer_manager: 0x2650b90
+2021/03/14-07:24:35.410875 7f335c45ea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:24:35.410875 7f335c45ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:24:35.410876 7f335c45ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:24:35.410876 7f335c45ea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:24:35.410877 7f335c45ea80 Options.rate_limiter: (nil)
+2021/03/14-07:24:35.410878 7f335c45ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:24:35.410886 7f335c45ea80 Options.wal_recovery_mode: 2
+2021/03/14-07:24:35.410887 7f335c45ea80 Options.enable_thread_tracking: 0
+2021/03/14-07:24:35.410887 7f335c45ea80 Options.enable_pipelined_write: 0
+2021/03/14-07:24:35.410888 7f335c45ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:24:35.410888 7f335c45ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:24:35.410889 7f335c45ea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:24:35.410890 7f335c45ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:24:35.410890 7f335c45ea80 Options.row_cache: None
+2021/03/14-07:24:35.410891 7f335c45ea80 Options.wal_filter: None
+2021/03/14-07:24:35.410891 7f335c45ea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:24:35.410892 7f335c45ea80 Options.allow_ingest_behind: 0
+2021/03/14-07:24:35.410892 7f335c45ea80 Options.preserve_deletes: 0
+2021/03/14-07:24:35.410893 7f335c45ea80 Options.two_write_queues: 0
+2021/03/14-07:24:35.410893 7f335c45ea80 Options.manual_wal_flush: 0
+2021/03/14-07:24:35.410895 7f335c45ea80 Options.max_background_jobs: 16
+2021/03/14-07:24:35.410895 7f335c45ea80 Options.max_background_compactions: -1
+2021/03/14-07:24:35.410896 7f335c45ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:24:35.410896 7f335c45ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:24:35.410897 7f335c45ea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:24:35.410898 7f335c45ea80 Options.max_total_wal_size: 0
+2021/03/14-07:24:35.410898 7f335c45ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:24:35.410899 7f335c45ea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:24:35.410899 7f335c45ea80 Options.max_open_files: -1
+2021/03/14-07:24:35.410900 7f335c45ea80 Options.bytes_per_sync: 0
+2021/03/14-07:24:35.410900 7f335c45ea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:24:35.410901 7f335c45ea80 Options.compaction_readahead_size: 0
+2021/03/14-07:24:35.410901 7f335c45ea80 Compression algorithms supported:
+2021/03/14-07:24:35.410902 7f335c45ea80 Snappy supported: 1
+2021/03/14-07:24:35.410903 7f335c45ea80 Zlib supported: 1
+2021/03/14-07:24:35.410903 7f335c45ea80 Bzip supported: 1
+2021/03/14-07:24:35.410904 7f335c45ea80 LZ4 supported: 1
+2021/03/14-07:24:35.410904 7f335c45ea80 ZSTDNotFinal supported: 1
+2021/03/14-07:24:35.410908 7f335c45ea80 ZSTD supported: 1
+2021/03/14-07:24:35.410911 7f335c45ea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:24:35.410913 7f335c45ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:24:35.411020 7f335c45ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:24:35.411073 7f335c45ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:24:35.411075 7f335c45ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:24:35.411076 7f335c45ea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:24:35.411076 7f335c45ea80 Options.compaction_filter: None
+2021/03/14-07:24:35.411077 7f335c45ea80 Options.compaction_filter_factory: None
+2021/03/14-07:24:35.411078 7f335c45ea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:24:35.411079 7f335c45ea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:24:35.411091 7f335c45ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2660520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2645c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:24:35.411092 7f335c45ea80 Options.write_buffer_size: 134217728
+2021/03/14-07:24:35.411093 7f335c45ea80 Options.max_write_buffer_number: 6
+2021/03/14-07:24:35.411093 7f335c45ea80 Options.compression[0]: NoCompression
+2021/03/14-07:24:35.411094 7f335c45ea80 Options.compression[1]: NoCompression
+2021/03/14-07:24:35.411095 7f335c45ea80 Options.compression[2]: Snappy
+2021/03/14-07:24:35.411095 7f335c45ea80 Options.compression[3]: Snappy
+2021/03/14-07:24:35.411096 7f335c45ea80 Options.compression[4]: Snappy
+2021/03/14-07:24:35.411096 7f335c45ea80 Options.compression[5]: Snappy
+2021/03/14-07:24:35.411097 7f335c45ea80 Options.compression[6]: Snappy
+2021/03/14-07:24:35.411098 7f335c45ea80 Options.bottommost_compression: Disabled
+2021/03/14-07:24:35.411098 7f335c45ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:24:35.411099 7f335c45ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:24:35.411100 7f335c45ea80 Options.num_levels: 7
+2021/03/14-07:24:35.411100 7f335c45ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:24:35.411101 7f335c45ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:24:35.411101 7f335c45ea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:24:35.411102 7f335c45ea80 Options.compression_opts.level: -1
+2021/03/14-07:24:35.411102 7f335c45ea80 Options.compression_opts.strategy: 0
+2021/03/14-07:24:35.411103 7f335c45ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:24:35.411104 7f335c45ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:24:35.411104 7f335c45ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:24:35.411105 7f335c45ea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:24:35.411105 7f335c45ea80 Options.target_file_size_base: 67108864
+2021/03/14-07:24:35.411106 7f335c45ea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:24:35.411107 7f335c45ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:24:35.411107 7f335c45ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:24:35.411108 7f335c45ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:24:35.411109 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:24:35.411117 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:24:35.411118 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:24:35.411119 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:24:35.411119 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:24:35.411120 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:24:35.411120 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:24:35.411121 7f335c45ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:24:35.411121 7f335c45ea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:24:35.411122 7f335c45ea80 Options.arena_block_size: 16777216
+2021/03/14-07:24:35.411123 7f335c45ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:24:35.411123 7f335c45ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:24:35.411124 7f335c45ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:24:35.411124 7f335c45ea80 Options.disable_auto_compactions: 0
+2021/03/14-07:24:35.411126 7f335c45ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:24:35.411127 7f335c45ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:24:35.411127 7f335c45ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:24:35.411128 7f335c45ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:24:35.411128 7f335c45ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:24:35.411129 7f335c45ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:24:35.411129 7f335c45ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:24:35.411130 7f335c45ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:24:35.411131 7f335c45ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:24:35.411132 7f335c45ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:24:35.411132 7f335c45ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:24:35.411133 7f335c45ea80 Options.table_properties_collectors:
+2021/03/14-07:24:35.411133 7f335c45ea80 Options.inplace_update_support: 0
+2021/03/14-07:24:35.411134 7f335c45ea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:24:35.411134 7f335c45ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:24:35.411135 7f335c45ea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:24:35.411136 7f335c45ea80 Options.bloom_locality: 0
+2021/03/14-07:24:35.411136 7f335c45ea80 Options.max_successive_merges: 0
+2021/03/14-07:24:35.411137 7f335c45ea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:24:35.411138 7f335c45ea80 Options.paranoid_file_checks: 0
+2021/03/14-07:24:35.411138 7f335c45ea80 Options.force_consistency_checks: 0
+2021/03/14-07:24:35.411139 7f335c45ea80 Options.report_bg_io_stats: 0
+2021/03/14-07:24:35.411518 7f335c45ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:24:35.411520 7f335c45ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:24:35.411669 7f335c45ea80 EVENT_LOG_v1 {"time_micros": 1615703075411659, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:24:35.411673 7f335c45ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:24:36.114571 7f335c45ea80 EVENT_LOG_v1 {"time_micros": 1615703076114567, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703503387189 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703503387189
new file mode 100644
index 0000000..85a6058
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703503387189
@@ -0,0 +1,186 @@
+2021/03/14-07:24:36.127632 7f335c45ea80 RocksDB version: 5.11.3
+2021/03/14-07:24:36.127685 7f335c45ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:24:36.127687 7f335c45ea80 Compile date Mar 13 2021
+2021/03/14-07:24:36.127689 7f335c45ea80 DB SUMMARY
+2021/03/14-07:24:36.127835 7f335c45ea80 CURRENT file: CURRENT
+2021/03/14-07:24:36.127836 7f335c45ea80 IDENTITY file: IDENTITY
+2021/03/14-07:24:36.127851 7f335c45ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:24:36.127852 7f335c45ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:24:36.127852 7f335c45ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:24:36.127857 7f335c45ea80 Options.error_if_exists: 0
+2021/03/14-07:24:36.127858 7f335c45ea80 Options.create_if_missing: 1
+2021/03/14-07:24:36.127859 7f335c45ea80 Options.paranoid_checks: 1
+2021/03/14-07:24:36.127859 7f335c45ea80 Options.env: 0x7f335ce18080
+2021/03/14-07:24:36.127860 7f335c45ea80 Options.info_log: 0x2668ca0
+2021/03/14-07:24:36.127861 7f335c45ea80 Options.max_file_opening_threads: 16
+2021/03/14-07:24:36.127861 7f335c45ea80 Options.statistics: (nil)
+2021/03/14-07:24:36.127862 7f335c45ea80 Options.use_fsync: 0
+2021/03/14-07:24:36.127862 7f335c45ea80 Options.max_log_file_size: 0
+2021/03/14-07:24:36.127863 7f335c45ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:24:36.127864 7f335c45ea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:24:36.127864 7f335c45ea80 Options.keep_log_file_num: 1000
+2021/03/14-07:24:36.127865 7f335c45ea80 Options.recycle_log_file_num: 0
+2021/03/14-07:24:36.127865 7f335c45ea80 Options.allow_fallocate: 1
+2021/03/14-07:24:36.127866 7f335c45ea80 Options.allow_mmap_reads: 0
+2021/03/14-07:24:36.127866 7f335c45ea80 Options.allow_mmap_writes: 0
+2021/03/14-07:24:36.127867 7f335c45ea80 Options.use_direct_reads: 0
+2021/03/14-07:24:36.127868 7f335c45ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:24:36.127868 7f335c45ea80 Options.create_missing_column_families: 0
+2021/03/14-07:24:36.127869 7f335c45ea80 Options.db_log_dir:
+2021/03/14-07:24:36.127869 7f335c45ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:24:36.127870 7f335c45ea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:24:36.127870 7f335c45ea80 Options.max_subcompactions: 1
+2021/03/14-07:24:36.127871 7f335c45ea80 Options.max_background_flushes: -1
+2021/03/14-07:24:36.127872 7f335c45ea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:24:36.127872 7f335c45ea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:24:36.127873 7f335c45ea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:24:36.127873 7f335c45ea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:24:36.127874 7f335c45ea80 Options.advise_random_on_open: 1
+2021/03/14-07:24:36.127874 7f335c45ea80 Options.db_write_buffer_size: 0
+2021/03/14-07:24:36.127875 7f335c45ea80 Options.write_buffer_manager: 0x2650b90
+2021/03/14-07:24:36.127875 7f335c45ea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:24:36.127876 7f335c45ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:24:36.127877 7f335c45ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:24:36.127877 7f335c45ea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:24:36.127878 7f335c45ea80 Options.rate_limiter: (nil)
+2021/03/14-07:24:36.127879 7f335c45ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:24:36.127887 7f335c45ea80 Options.wal_recovery_mode: 2
+2021/03/14-07:24:36.127887 7f335c45ea80 Options.enable_thread_tracking: 0
+2021/03/14-07:24:36.127888 7f335c45ea80 Options.enable_pipelined_write: 0
+2021/03/14-07:24:36.127889 7f335c45ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:24:36.127889 7f335c45ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:24:36.127890 7f335c45ea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:24:36.127890 7f335c45ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:24:36.127891 7f335c45ea80 Options.row_cache: None
+2021/03/14-07:24:36.127891 7f335c45ea80 Options.wal_filter: None
+2021/03/14-07:24:36.127892 7f335c45ea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:24:36.127893 7f335c45ea80 Options.allow_ingest_behind: 0
+2021/03/14-07:24:36.127893 7f335c45ea80 Options.preserve_deletes: 0
+2021/03/14-07:24:36.127894 7f335c45ea80 Options.two_write_queues: 0
+2021/03/14-07:24:36.127894 7f335c45ea80 Options.manual_wal_flush: 0
+2021/03/14-07:24:36.127895 7f335c45ea80 Options.max_background_jobs: 16
+2021/03/14-07:24:36.127896 7f335c45ea80 Options.max_background_compactions: -1
+2021/03/14-07:24:36.127896 7f335c45ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:24:36.127897 7f335c45ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:24:36.127897 7f335c45ea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:24:36.127898 7f335c45ea80 Options.max_total_wal_size: 0
+2021/03/14-07:24:36.127899 7f335c45ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:24:36.127899 7f335c45ea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:24:36.127900 7f335c45ea80 Options.max_open_files: -1
+2021/03/14-07:24:36.127900 7f335c45ea80 Options.bytes_per_sync: 0
+2021/03/14-07:24:36.127901 7f335c45ea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:24:36.127901 7f335c45ea80 Options.compaction_readahead_size: 0
+2021/03/14-07:24:36.127902 7f335c45ea80 Compression algorithms supported:
+2021/03/14-07:24:36.127903 7f335c45ea80 Snappy supported: 1
+2021/03/14-07:24:36.127903 7f335c45ea80 Zlib supported: 1
+2021/03/14-07:24:36.127904 7f335c45ea80 Bzip supported: 1
+2021/03/14-07:24:36.127904 7f335c45ea80 LZ4 supported: 1
+2021/03/14-07:24:36.127905 7f335c45ea80 ZSTDNotFinal supported: 1
+2021/03/14-07:24:36.127909 7f335c45ea80 ZSTD supported: 1
+2021/03/14-07:24:36.127912 7f335c45ea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:24:36.127913 7f335c45ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:24:36.128004 7f335c45ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:24:36.128057 7f335c45ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:24:36.128059 7f335c45ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:24:36.128060 7f335c45ea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:24:36.128060 7f335c45ea80 Options.compaction_filter: None
+2021/03/14-07:24:36.128061 7f335c45ea80 Options.compaction_filter_factory: None
+2021/03/14-07:24:36.128062 7f335c45ea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:24:36.128062 7f335c45ea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:24:36.128075 7f335c45ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2660520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2645c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:24:36.128075 7f335c45ea80 Options.write_buffer_size: 134217728
+2021/03/14-07:24:36.128076 7f335c45ea80 Options.max_write_buffer_number: 6
+2021/03/14-07:24:36.128077 7f335c45ea80 Options.compression[0]: NoCompression
+2021/03/14-07:24:36.128077 7f335c45ea80 Options.compression[1]: NoCompression
+2021/03/14-07:24:36.128078 7f335c45ea80 Options.compression[2]: Snappy
+2021/03/14-07:24:36.128079 7f335c45ea80 Options.compression[3]: Snappy
+2021/03/14-07:24:36.128079 7f335c45ea80 Options.compression[4]: Snappy
+2021/03/14-07:24:36.128080 7f335c45ea80 Options.compression[5]: Snappy
+2021/03/14-07:24:36.128080 7f335c45ea80 Options.compression[6]: Snappy
+2021/03/14-07:24:36.128081 7f335c45ea80 Options.bottommost_compression: Disabled
+2021/03/14-07:24:36.128082 7f335c45ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:24:36.128082 7f335c45ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:24:36.128083 7f335c45ea80 Options.num_levels: 7
+2021/03/14-07:24:36.128083 7f335c45ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:24:36.128084 7f335c45ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:24:36.128085 7f335c45ea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:24:36.128085 7f335c45ea80 Options.compression_opts.level: -1
+2021/03/14-07:24:36.128086 7f335c45ea80 Options.compression_opts.strategy: 0
+2021/03/14-07:24:36.128086 7f335c45ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:24:36.128087 7f335c45ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:24:36.128087 7f335c45ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:24:36.128088 7f335c45ea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:24:36.128088 7f335c45ea80 Options.target_file_size_base: 67108864
+2021/03/14-07:24:36.128089 7f335c45ea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:24:36.128090 7f335c45ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:24:36.128090 7f335c45ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:24:36.128091 7f335c45ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:24:36.128092 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:24:36.128100 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:24:36.128101 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:24:36.128101 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:24:36.128102 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:24:36.128102 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:24:36.128103 7f335c45ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:24:36.128103 7f335c45ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:24:36.128104 7f335c45ea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:24:36.128105 7f335c45ea80 Options.arena_block_size: 16777216
+2021/03/14-07:24:36.128105 7f335c45ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:24:36.128106 7f335c45ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:24:36.128106 7f335c45ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:24:36.128107 7f335c45ea80 Options.disable_auto_compactions: 0
+2021/03/14-07:24:36.128109 7f335c45ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:24:36.128109 7f335c45ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:24:36.128110 7f335c45ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:24:36.128111 7f335c45ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:24:36.128111 7f335c45ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:24:36.128112 7f335c45ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:24:36.128112 7f335c45ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:24:36.128113 7f335c45ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:24:36.128114 7f335c45ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:24:36.128115 7f335c45ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:24:36.128115 7f335c45ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:24:36.128116 7f335c45ea80 Options.table_properties_collectors:
+2021/03/14-07:24:36.128116 7f335c45ea80 Options.inplace_update_support: 0
+2021/03/14-07:24:36.128117 7f335c45ea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:24:36.128117 7f335c45ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:24:36.128118 7f335c45ea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:24:36.128119 7f335c45ea80 Options.bloom_locality: 0
+2021/03/14-07:24:36.128119 7f335c45ea80 Options.max_successive_merges: 0
+2021/03/14-07:24:36.128120 7f335c45ea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:24:36.128120 7f335c45ea80 Options.paranoid_file_checks: 0
+2021/03/14-07:24:36.128121 7f335c45ea80 Options.force_consistency_checks: 0
+2021/03/14-07:24:36.128121 7f335c45ea80 Options.report_bg_io_stats: 0
+2021/03/14-07:24:36.128494 7f335c45ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:24:36.128497 7f335c45ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:24:36.128650 7f335c45ea80 EVENT_LOG_v1 {"time_micros": 1615703076128640, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:24:36.128655 7f335c45ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:24:36.825619 7f335c45ea80 EVENT_LOG_v1 {"time_micros": 1615703076825615, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703504640755 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703504640755
new file mode 100644
index 0000000..23af3c7
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703504640755
@@ -0,0 +1,186 @@
+2021/03/14-07:31:43.387913 7f743af67a80 RocksDB version: 5.11.3
+2021/03/14-07:31:43.388001 7f743af67a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:31:43.388003 7f743af67a80 Compile date Mar 13 2021
+2021/03/14-07:31:43.388011 7f743af67a80 DB SUMMARY
+2021/03/14-07:31:43.388249 7f743af67a80 CURRENT file: CURRENT
+2021/03/14-07:31:43.388252 7f743af67a80 IDENTITY file: IDENTITY
+2021/03/14-07:31:43.388275 7f743af67a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:31:43.388277 7f743af67a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:31:43.388278 7f743af67a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:31:43.388286 7f743af67a80 Options.error_if_exists: 0
+2021/03/14-07:31:43.388287 7f743af67a80 Options.create_if_missing: 1
+2021/03/14-07:31:43.388288 7f743af67a80 Options.paranoid_checks: 1
+2021/03/14-07:31:43.388289 7f743af67a80 Options.env: 0x7f743b921080
+2021/03/14-07:31:43.388290 7f743af67a80 Options.info_log: 0x18f0fa0
+2021/03/14-07:31:43.388291 7f743af67a80 Options.max_file_opening_threads: 16
+2021/03/14-07:31:43.388292 7f743af67a80 Options.statistics: (nil)
+2021/03/14-07:31:43.388293 7f743af67a80 Options.use_fsync: 0
+2021/03/14-07:31:43.388294 7f743af67a80 Options.max_log_file_size: 0
+2021/03/14-07:31:43.388295 7f743af67a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:31:43.388296 7f743af67a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:31:43.388297 7f743af67a80 Options.keep_log_file_num: 1000
+2021/03/14-07:31:43.388298 7f743af67a80 Options.recycle_log_file_num: 0
+2021/03/14-07:31:43.388299 7f743af67a80 Options.allow_fallocate: 1
+2021/03/14-07:31:43.388299 7f743af67a80 Options.allow_mmap_reads: 0
+2021/03/14-07:31:43.388300 7f743af67a80 Options.allow_mmap_writes: 0
+2021/03/14-07:31:43.388301 7f743af67a80 Options.use_direct_reads: 0
+2021/03/14-07:31:43.388302 7f743af67a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:31:43.388303 7f743af67a80 Options.create_missing_column_families: 0
+2021/03/14-07:31:43.388303 7f743af67a80 Options.db_log_dir:
+2021/03/14-07:31:43.388304 7f743af67a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:31:43.388305 7f743af67a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:31:43.388306 7f743af67a80 Options.max_subcompactions: 1
+2021/03/14-07:31:43.388307 7f743af67a80 Options.max_background_flushes: -1
+2021/03/14-07:31:43.388308 7f743af67a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:31:43.388309 7f743af67a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:31:43.388310 7f743af67a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:31:43.388311 7f743af67a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:31:43.388311 7f743af67a80 Options.advise_random_on_open: 1
+2021/03/14-07:31:43.388312 7f743af67a80 Options.db_write_buffer_size: 0
+2021/03/14-07:31:43.388313 7f743af67a80 Options.write_buffer_manager: 0x18d8e90
+2021/03/14-07:31:43.388314 7f743af67a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:31:43.388315 7f743af67a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:31:43.388316 7f743af67a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:31:43.388317 7f743af67a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:31:43.388317 7f743af67a80 Options.rate_limiter: (nil)
+2021/03/14-07:31:43.388319 7f743af67a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:31:43.388332 7f743af67a80 Options.wal_recovery_mode: 2
+2021/03/14-07:31:43.388333 7f743af67a80 Options.enable_thread_tracking: 0
+2021/03/14-07:31:43.388334 7f743af67a80 Options.enable_pipelined_write: 0
+2021/03/14-07:31:43.388335 7f743af67a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:31:43.388336 7f743af67a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:31:43.388337 7f743af67a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:31:43.388338 7f743af67a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:31:43.388338 7f743af67a80 Options.row_cache: None
+2021/03/14-07:31:43.388339 7f743af67a80 Options.wal_filter: None
+2021/03/14-07:31:43.388340 7f743af67a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:31:43.388341 7f743af67a80 Options.allow_ingest_behind: 0
+2021/03/14-07:31:43.388342 7f743af67a80 Options.preserve_deletes: 0
+2021/03/14-07:31:43.388343 7f743af67a80 Options.two_write_queues: 0
+2021/03/14-07:31:43.388343 7f743af67a80 Options.manual_wal_flush: 0
+2021/03/14-07:31:43.388345 7f743af67a80 Options.max_background_jobs: 16
+2021/03/14-07:31:43.388346 7f743af67a80 Options.max_background_compactions: -1
+2021/03/14-07:31:43.388347 7f743af67a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:31:43.388348 7f743af67a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:31:43.388349 7f743af67a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:31:43.388350 7f743af67a80 Options.max_total_wal_size: 0
+2021/03/14-07:31:43.388350 7f743af67a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:31:43.388351 7f743af67a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:31:43.388352 7f743af67a80 Options.max_open_files: -1
+2021/03/14-07:31:43.388353 7f743af67a80 Options.bytes_per_sync: 0
+2021/03/14-07:31:43.388354 7f743af67a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:31:43.388355 7f743af67a80 Options.compaction_readahead_size: 0
+2021/03/14-07:31:43.388356 7f743af67a80 Compression algorithms supported:
+2021/03/14-07:31:43.388356 7f743af67a80 Snappy supported: 1
+2021/03/14-07:31:43.388357 7f743af67a80 Zlib supported: 1
+2021/03/14-07:31:43.388358 7f743af67a80 Bzip supported: 1
+2021/03/14-07:31:43.388359 7f743af67a80 LZ4 supported: 1
+2021/03/14-07:31:43.388360 7f743af67a80 ZSTDNotFinal supported: 1
+2021/03/14-07:31:43.388366 7f743af67a80 ZSTD supported: 1
+2021/03/14-07:31:43.388371 7f743af67a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:31:43.388374 7f743af67a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:31:43.388549 7f743af67a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:31:43.388633 7f743af67a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:31:43.388635 7f743af67a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:31:43.388637 7f743af67a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:31:43.388638 7f743af67a80 Options.compaction_filter: None
+2021/03/14-07:31:43.388638 7f743af67a80 Options.compaction_filter_factory: None
+2021/03/14-07:31:43.388639 7f743af67a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:31:43.388641 7f743af67a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:31:43.388662 7f743af67a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x18e8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x18cdf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:31:43.388663 7f743af67a80 Options.write_buffer_size: 134217728
+2021/03/14-07:31:43.388664 7f743af67a80 Options.max_write_buffer_number: 6
+2021/03/14-07:31:43.388665 7f743af67a80 Options.compression[0]: NoCompression
+2021/03/14-07:31:43.388666 7f743af67a80 Options.compression[1]: NoCompression
+2021/03/14-07:31:43.388668 7f743af67a80 Options.compression[2]: Snappy
+2021/03/14-07:31:43.388668 7f743af67a80 Options.compression[3]: Snappy
+2021/03/14-07:31:43.388669 7f743af67a80 Options.compression[4]: Snappy
+2021/03/14-07:31:43.388670 7f743af67a80 Options.compression[5]: Snappy
+2021/03/14-07:31:43.388671 7f743af67a80 Options.compression[6]: Snappy
+2021/03/14-07:31:43.388672 7f743af67a80 Options.bottommost_compression: Disabled
+2021/03/14-07:31:43.388673 7f743af67a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:31:43.388674 7f743af67a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:31:43.388675 7f743af67a80 Options.num_levels: 7
+2021/03/14-07:31:43.388676 7f743af67a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:31:43.388677 7f743af67a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:31:43.388678 7f743af67a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:31:43.388679 7f743af67a80 Options.compression_opts.level: -1
+2021/03/14-07:31:43.388679 7f743af67a80 Options.compression_opts.strategy: 0
+2021/03/14-07:31:43.388680 7f743af67a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:31:43.388681 7f743af67a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:31:43.388682 7f743af67a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:31:43.388683 7f743af67a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:31:43.388684 7f743af67a80 Options.target_file_size_base: 67108864
+2021/03/14-07:31:43.388685 7f743af67a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:31:43.388686 7f743af67a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:31:43.388686 7f743af67a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:31:43.388687 7f743af67a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:31:43.388689 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:31:43.388700 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:31:43.388701 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:31:43.388702 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:31:43.388703 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:31:43.388704 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:31:43.388705 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:31:43.388706 7f743af67a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:31:43.388706 7f743af67a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:31:43.388707 7f743af67a80 Options.arena_block_size: 16777216
+2021/03/14-07:31:43.388708 7f743af67a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:31:43.388709 7f743af67a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:31:43.388710 7f743af67a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:31:43.388711 7f743af67a80 Options.disable_auto_compactions: 0
+2021/03/14-07:31:43.388713 7f743af67a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:31:43.388715 7f743af67a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:31:43.388715 7f743af67a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:31:43.388716 7f743af67a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:31:43.388717 7f743af67a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:31:43.388718 7f743af67a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:31:43.388719 7f743af67a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:31:43.388721 7f743af67a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:31:43.388722 7f743af67a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:31:43.388722 7f743af67a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:31:43.388723 7f743af67a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:31:43.388724 7f743af67a80 Options.table_properties_collectors:
+2021/03/14-07:31:43.388725 7f743af67a80 Options.inplace_update_support: 0
+2021/03/14-07:31:43.388726 7f743af67a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:31:43.388727 7f743af67a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:31:43.388728 7f743af67a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:31:43.388729 7f743af67a80 Options.bloom_locality: 0
+2021/03/14-07:31:43.388730 7f743af67a80 Options.max_successive_merges: 0
+2021/03/14-07:31:43.388731 7f743af67a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:31:43.388732 7f743af67a80 Options.paranoid_file_checks: 0
+2021/03/14-07:31:43.388732 7f743af67a80 Options.force_consistency_checks: 0
+2021/03/14-07:31:43.388733 7f743af67a80 Options.report_bg_io_stats: 0
+2021/03/14-07:31:43.389425 7f743af67a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:31:43.389429 7f743af67a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:31:43.389671 7f743af67a80 EVENT_LOG_v1 {"time_micros": 1615703503389653, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:31:43.389679 7f743af67a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:31:44.621642 7f743af67a80 EVENT_LOG_v1 {"time_micros": 1615703504621637, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703505860998 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703505860998
new file mode 100644
index 0000000..c57f8fc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703505860998
@@ -0,0 +1,186 @@
+2021/03/14-07:31:44.641395 7f743af67a80 RocksDB version: 5.11.3
+2021/03/14-07:31:44.641474 7f743af67a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:31:44.641476 7f743af67a80 Compile date Mar 13 2021
+2021/03/14-07:31:44.641484 7f743af67a80 DB SUMMARY
+2021/03/14-07:31:44.641709 7f743af67a80 CURRENT file: CURRENT
+2021/03/14-07:31:44.641710 7f743af67a80 IDENTITY file: IDENTITY
+2021/03/14-07:31:44.641732 7f743af67a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:31:44.641734 7f743af67a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:31:44.641735 7f743af67a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:31:44.641743 7f743af67a80 Options.error_if_exists: 0
+2021/03/14-07:31:44.641744 7f743af67a80 Options.create_if_missing: 1
+2021/03/14-07:31:44.641745 7f743af67a80 Options.paranoid_checks: 1
+2021/03/14-07:31:44.641746 7f743af67a80 Options.env: 0x7f743b921080
+2021/03/14-07:31:44.641747 7f743af67a80 Options.info_log: 0x18f0fa0
+2021/03/14-07:31:44.641748 7f743af67a80 Options.max_file_opening_threads: 16
+2021/03/14-07:31:44.641749 7f743af67a80 Options.statistics: (nil)
+2021/03/14-07:31:44.641750 7f743af67a80 Options.use_fsync: 0
+2021/03/14-07:31:44.641751 7f743af67a80 Options.max_log_file_size: 0
+2021/03/14-07:31:44.641751 7f743af67a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:31:44.641752 7f743af67a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:31:44.641753 7f743af67a80 Options.keep_log_file_num: 1000
+2021/03/14-07:31:44.641754 7f743af67a80 Options.recycle_log_file_num: 0
+2021/03/14-07:31:44.641755 7f743af67a80 Options.allow_fallocate: 1
+2021/03/14-07:31:44.641756 7f743af67a80 Options.allow_mmap_reads: 0
+2021/03/14-07:31:44.641757 7f743af67a80 Options.allow_mmap_writes: 0
+2021/03/14-07:31:44.641758 7f743af67a80 Options.use_direct_reads: 0
+2021/03/14-07:31:44.641758 7f743af67a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:31:44.641759 7f743af67a80 Options.create_missing_column_families: 0
+2021/03/14-07:31:44.641760 7f743af67a80 Options.db_log_dir:
+2021/03/14-07:31:44.641761 7f743af67a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:31:44.641762 7f743af67a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:31:44.641763 7f743af67a80 Options.max_subcompactions: 1
+2021/03/14-07:31:44.641764 7f743af67a80 Options.max_background_flushes: -1
+2021/03/14-07:31:44.641765 7f743af67a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:31:44.641765 7f743af67a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:31:44.641766 7f743af67a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:31:44.641767 7f743af67a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:31:44.641768 7f743af67a80 Options.advise_random_on_open: 1
+2021/03/14-07:31:44.641769 7f743af67a80 Options.db_write_buffer_size: 0
+2021/03/14-07:31:44.641770 7f743af67a80 Options.write_buffer_manager: 0x18d8e90
+2021/03/14-07:31:44.641771 7f743af67a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:31:44.641772 7f743af67a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:31:44.641772 7f743af67a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:31:44.641773 7f743af67a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:31:44.641774 7f743af67a80 Options.rate_limiter: (nil)
+2021/03/14-07:31:44.641776 7f743af67a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:31:44.641788 7f743af67a80 Options.wal_recovery_mode: 2
+2021/03/14-07:31:44.641789 7f743af67a80 Options.enable_thread_tracking: 0
+2021/03/14-07:31:44.641789 7f743af67a80 Options.enable_pipelined_write: 0
+2021/03/14-07:31:44.641790 7f743af67a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:31:44.641791 7f743af67a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:31:44.641792 7f743af67a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:31:44.641793 7f743af67a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:31:44.641794 7f743af67a80 Options.row_cache: None
+2021/03/14-07:31:44.641795 7f743af67a80 Options.wal_filter: None
+2021/03/14-07:31:44.641796 7f743af67a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:31:44.641796 7f743af67a80 Options.allow_ingest_behind: 0
+2021/03/14-07:31:44.641797 7f743af67a80 Options.preserve_deletes: 0
+2021/03/14-07:31:44.641798 7f743af67a80 Options.two_write_queues: 0
+2021/03/14-07:31:44.641799 7f743af67a80 Options.manual_wal_flush: 0
+2021/03/14-07:31:44.641801 7f743af67a80 Options.max_background_jobs: 16
+2021/03/14-07:31:44.641801 7f743af67a80 Options.max_background_compactions: -1
+2021/03/14-07:31:44.641802 7f743af67a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:31:44.641803 7f743af67a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:31:44.641804 7f743af67a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:31:44.641805 7f743af67a80 Options.max_total_wal_size: 0
+2021/03/14-07:31:44.641806 7f743af67a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:31:44.641807 7f743af67a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:31:44.641808 7f743af67a80 Options.max_open_files: -1
+2021/03/14-07:31:44.641808 7f743af67a80 Options.bytes_per_sync: 0
+2021/03/14-07:31:44.641809 7f743af67a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:31:44.641810 7f743af67a80 Options.compaction_readahead_size: 0
+2021/03/14-07:31:44.641811 7f743af67a80 Compression algorithms supported:
+2021/03/14-07:31:44.641812 7f743af67a80 Snappy supported: 1
+2021/03/14-07:31:44.641813 7f743af67a80 Zlib supported: 1
+2021/03/14-07:31:44.641814 7f743af67a80 Bzip supported: 1
+2021/03/14-07:31:44.641814 7f743af67a80 LZ4 supported: 1
+2021/03/14-07:31:44.641815 7f743af67a80 ZSTDNotFinal supported: 1
+2021/03/14-07:31:44.641822 7f743af67a80 ZSTD supported: 1
+2021/03/14-07:31:44.641826 7f743af67a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:31:44.641829 7f743af67a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:31:44.641970 7f743af67a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:31:44.642053 7f743af67a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:31:44.642055 7f743af67a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:31:44.642056 7f743af67a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:31:44.642057 7f743af67a80 Options.compaction_filter: None
+2021/03/14-07:31:44.642058 7f743af67a80 Options.compaction_filter_factory: None
+2021/03/14-07:31:44.642059 7f743af67a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:31:44.642060 7f743af67a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:31:44.642082 7f743af67a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x18e8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x18cdf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:31:44.642083 7f743af67a80 Options.write_buffer_size: 134217728
+2021/03/14-07:31:44.642084 7f743af67a80 Options.max_write_buffer_number: 6
+2021/03/14-07:31:44.642085 7f743af67a80 Options.compression[0]: NoCompression
+2021/03/14-07:31:44.642086 7f743af67a80 Options.compression[1]: NoCompression
+2021/03/14-07:31:44.642087 7f743af67a80 Options.compression[2]: Snappy
+2021/03/14-07:31:44.642088 7f743af67a80 Options.compression[3]: Snappy
+2021/03/14-07:31:44.642089 7f743af67a80 Options.compression[4]: Snappy
+2021/03/14-07:31:44.642090 7f743af67a80 Options.compression[5]: Snappy
+2021/03/14-07:31:44.642090 7f743af67a80 Options.compression[6]: Snappy
+2021/03/14-07:31:44.642091 7f743af67a80 Options.bottommost_compression: Disabled
+2021/03/14-07:31:44.642093 7f743af67a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:31:44.642093 7f743af67a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:31:44.642094 7f743af67a80 Options.num_levels: 7
+2021/03/14-07:31:44.642095 7f743af67a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:31:44.642096 7f743af67a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:31:44.642097 7f743af67a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:31:44.642098 7f743af67a80 Options.compression_opts.level: -1
+2021/03/14-07:31:44.642099 7f743af67a80 Options.compression_opts.strategy: 0
+2021/03/14-07:31:44.642100 7f743af67a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:31:44.642100 7f743af67a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:31:44.642101 7f743af67a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:31:44.642102 7f743af67a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:31:44.642103 7f743af67a80 Options.target_file_size_base: 67108864
+2021/03/14-07:31:44.642104 7f743af67a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:31:44.642105 7f743af67a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:31:44.642106 7f743af67a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:31:44.642107 7f743af67a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:31:44.642109 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:31:44.642120 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:31:44.642122 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:31:44.642122 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:31:44.642123 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:31:44.642124 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:31:44.642125 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:31:44.642126 7f743af67a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:31:44.642127 7f743af67a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:31:44.642128 7f743af67a80 Options.arena_block_size: 16777216
+2021/03/14-07:31:44.642128 7f743af67a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:31:44.642129 7f743af67a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:31:44.642130 7f743af67a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:31:44.642131 7f743af67a80 Options.disable_auto_compactions: 0
+2021/03/14-07:31:44.642134 7f743af67a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:31:44.642135 7f743af67a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:31:44.642136 7f743af67a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:31:44.642137 7f743af67a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:31:44.642137 7f743af67a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:31:44.642138 7f743af67a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:31:44.642139 7f743af67a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:31:44.642141 7f743af67a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:31:44.642142 7f743af67a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:31:44.642143 7f743af67a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:31:44.642144 7f743af67a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:31:44.642145 7f743af67a80 Options.table_properties_collectors:
+2021/03/14-07:31:44.642146 7f743af67a80 Options.inplace_update_support: 0
+2021/03/14-07:31:44.642146 7f743af67a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:31:44.642147 7f743af67a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:31:44.642149 7f743af67a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:31:44.642150 7f743af67a80 Options.bloom_locality: 0
+2021/03/14-07:31:44.642150 7f743af67a80 Options.max_successive_merges: 0
+2021/03/14-07:31:44.642151 7f743af67a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:31:44.642152 7f743af67a80 Options.paranoid_file_checks: 0
+2021/03/14-07:31:44.642153 7f743af67a80 Options.force_consistency_checks: 0
+2021/03/14-07:31:44.642154 7f743af67a80 Options.report_bg_io_stats: 0
+2021/03/14-07:31:44.642840 7f743af67a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:31:44.642845 7f743af67a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:31:44.643081 7f743af67a80 EVENT_LOG_v1 {"time_micros": 1615703504643065, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:31:44.643090 7f743af67a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:31:45.842086 7f743af67a80 EVENT_LOG_v1 {"time_micros": 1615703505842080, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703506865278 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703506865278
new file mode 100644
index 0000000..3c0098c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703506865278
@@ -0,0 +1,186 @@
+2021/03/14-07:31:45.861624 7f743af67a80 RocksDB version: 5.11.3
+2021/03/14-07:31:45.861702 7f743af67a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:31:45.861704 7f743af67a80 Compile date Mar 13 2021
+2021/03/14-07:31:45.861711 7f743af67a80 DB SUMMARY
+2021/03/14-07:31:45.861950 7f743af67a80 CURRENT file: CURRENT
+2021/03/14-07:31:45.861952 7f743af67a80 IDENTITY file: IDENTITY
+2021/03/14-07:31:45.861983 7f743af67a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:31:45.861985 7f743af67a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:31:45.861987 7f743af67a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:31:45.862000 7f743af67a80 Options.error_if_exists: 0
+2021/03/14-07:31:45.862002 7f743af67a80 Options.create_if_missing: 1
+2021/03/14-07:31:45.862003 7f743af67a80 Options.paranoid_checks: 1
+2021/03/14-07:31:45.862005 7f743af67a80 Options.env: 0x7f743b921080
+2021/03/14-07:31:45.862006 7f743af67a80 Options.info_log: 0x18f0fa0
+2021/03/14-07:31:45.862007 7f743af67a80 Options.max_file_opening_threads: 16
+2021/03/14-07:31:45.862008 7f743af67a80 Options.statistics: (nil)
+2021/03/14-07:31:45.862009 7f743af67a80 Options.use_fsync: 0
+2021/03/14-07:31:45.862010 7f743af67a80 Options.max_log_file_size: 0
+2021/03/14-07:31:45.862011 7f743af67a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:31:45.862012 7f743af67a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:31:45.862013 7f743af67a80 Options.keep_log_file_num: 1000
+2021/03/14-07:31:45.862013 7f743af67a80 Options.recycle_log_file_num: 0
+2021/03/14-07:31:45.862014 7f743af67a80 Options.allow_fallocate: 1
+2021/03/14-07:31:45.862015 7f743af67a80 Options.allow_mmap_reads: 0
+2021/03/14-07:31:45.862016 7f743af67a80 Options.allow_mmap_writes: 0
+2021/03/14-07:31:45.862017 7f743af67a80 Options.use_direct_reads: 0
+2021/03/14-07:31:45.862018 7f743af67a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:31:45.862019 7f743af67a80 Options.create_missing_column_families: 0
+2021/03/14-07:31:45.862019 7f743af67a80 Options.db_log_dir:
+2021/03/14-07:31:45.862020 7f743af67a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:31:45.862021 7f743af67a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:31:45.862022 7f743af67a80 Options.max_subcompactions: 1
+2021/03/14-07:31:45.862023 7f743af67a80 Options.max_background_flushes: -1
+2021/03/14-07:31:45.862024 7f743af67a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:31:45.862025 7f743af67a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:31:45.862026 7f743af67a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:31:45.862027 7f743af67a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:31:45.862027 7f743af67a80 Options.advise_random_on_open: 1
+2021/03/14-07:31:45.862028 7f743af67a80 Options.db_write_buffer_size: 0
+2021/03/14-07:31:45.862029 7f743af67a80 Options.write_buffer_manager: 0x18d8e90
+2021/03/14-07:31:45.862030 7f743af67a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:31:45.862031 7f743af67a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:31:45.862032 7f743af67a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:31:45.862033 7f743af67a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:31:45.862033 7f743af67a80 Options.rate_limiter: (nil)
+2021/03/14-07:31:45.862035 7f743af67a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:31:45.862049 7f743af67a80 Options.wal_recovery_mode: 2
+2021/03/14-07:31:45.862050 7f743af67a80 Options.enable_thread_tracking: 0
+2021/03/14-07:31:45.862051 7f743af67a80 Options.enable_pipelined_write: 0
+2021/03/14-07:31:45.862052 7f743af67a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:31:45.862052 7f743af67a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:31:45.862053 7f743af67a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:31:45.862054 7f743af67a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:31:45.862055 7f743af67a80 Options.row_cache: None
+2021/03/14-07:31:45.862056 7f743af67a80 Options.wal_filter: None
+2021/03/14-07:31:45.862057 7f743af67a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:31:45.862058 7f743af67a80 Options.allow_ingest_behind: 0
+2021/03/14-07:31:45.862059 7f743af67a80 Options.preserve_deletes: 0
+2021/03/14-07:31:45.862059 7f743af67a80 Options.two_write_queues: 0
+2021/03/14-07:31:45.862060 7f743af67a80 Options.manual_wal_flush: 0
+2021/03/14-07:31:45.862062 7f743af67a80 Options.max_background_jobs: 16
+2021/03/14-07:31:45.862063 7f743af67a80 Options.max_background_compactions: -1
+2021/03/14-07:31:45.862064 7f743af67a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:31:45.862065 7f743af67a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:31:45.862066 7f743af67a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:31:45.862066 7f743af67a80 Options.max_total_wal_size: 0
+2021/03/14-07:31:45.862067 7f743af67a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:31:45.862068 7f743af67a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:31:45.862069 7f743af67a80 Options.max_open_files: -1
+2021/03/14-07:31:45.862070 7f743af67a80 Options.bytes_per_sync: 0
+2021/03/14-07:31:45.862071 7f743af67a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:31:45.862072 7f743af67a80 Options.compaction_readahead_size: 0
+2021/03/14-07:31:45.862072 7f743af67a80 Compression algorithms supported:
+2021/03/14-07:31:45.862073 7f743af67a80 Snappy supported: 1
+2021/03/14-07:31:45.862074 7f743af67a80 Zlib supported: 1
+2021/03/14-07:31:45.862075 7f743af67a80 Bzip supported: 1
+2021/03/14-07:31:45.862076 7f743af67a80 LZ4 supported: 1
+2021/03/14-07:31:45.862077 7f743af67a80 ZSTDNotFinal supported: 1
+2021/03/14-07:31:45.862084 7f743af67a80 ZSTD supported: 1
+2021/03/14-07:31:45.862089 7f743af67a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:31:45.862091 7f743af67a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:31:45.862229 7f743af67a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:31:45.862325 7f743af67a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:31:45.862328 7f743af67a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:31:45.862330 7f743af67a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:31:45.862331 7f743af67a80 Options.compaction_filter: None
+2021/03/14-07:31:45.862331 7f743af67a80 Options.compaction_filter_factory: None
+2021/03/14-07:31:45.862332 7f743af67a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:31:45.862334 7f743af67a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:31:45.862357 7f743af67a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x18e8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x18cdf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:31:45.862359 7f743af67a80 Options.write_buffer_size: 134217728
+2021/03/14-07:31:45.862359 7f743af67a80 Options.max_write_buffer_number: 6
+2021/03/14-07:31:45.862360 7f743af67a80 Options.compression[0]: NoCompression
+2021/03/14-07:31:45.862361 7f743af67a80 Options.compression[1]: NoCompression
+2021/03/14-07:31:45.862363 7f743af67a80 Options.compression[2]: Snappy
+2021/03/14-07:31:45.862363 7f743af67a80 Options.compression[3]: Snappy
+2021/03/14-07:31:45.862364 7f743af67a80 Options.compression[4]: Snappy
+2021/03/14-07:31:45.862365 7f743af67a80 Options.compression[5]: Snappy
+2021/03/14-07:31:45.862366 7f743af67a80 Options.compression[6]: Snappy
+2021/03/14-07:31:45.862367 7f743af67a80 Options.bottommost_compression: Disabled
+2021/03/14-07:31:45.862368 7f743af67a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:31:45.862369 7f743af67a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:31:45.862370 7f743af67a80 Options.num_levels: 7
+2021/03/14-07:31:45.862371 7f743af67a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:31:45.862372 7f743af67a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:31:45.862373 7f743af67a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:31:45.862374 7f743af67a80 Options.compression_opts.level: -1
+2021/03/14-07:31:45.862374 7f743af67a80 Options.compression_opts.strategy: 0
+2021/03/14-07:31:45.862375 7f743af67a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:31:45.862376 7f743af67a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:31:45.862377 7f743af67a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:31:45.862378 7f743af67a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:31:45.862379 7f743af67a80 Options.target_file_size_base: 67108864
+2021/03/14-07:31:45.862380 7f743af67a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:31:45.862381 7f743af67a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:31:45.862382 7f743af67a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:31:45.862382 7f743af67a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:31:45.862385 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:31:45.862397 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:31:45.862398 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:31:45.862399 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:31:45.862399 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:31:45.862400 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:31:45.862401 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:31:45.862402 7f743af67a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:31:45.862403 7f743af67a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:31:45.862404 7f743af67a80 Options.arena_block_size: 16777216
+2021/03/14-07:31:45.862405 7f743af67a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:31:45.862406 7f743af67a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:31:45.862407 7f743af67a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:31:45.862407 7f743af67a80 Options.disable_auto_compactions: 0
+2021/03/14-07:31:45.862410 7f743af67a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:31:45.862411 7f743af67a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:31:45.862412 7f743af67a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:31:45.862413 7f743af67a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:31:45.862414 7f743af67a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:31:45.862415 7f743af67a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:31:45.862416 7f743af67a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:31:45.862418 7f743af67a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:31:45.862418 7f743af67a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:31:45.862419 7f743af67a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:31:45.862420 7f743af67a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:31:45.862421 7f743af67a80 Options.table_properties_collectors:
+2021/03/14-07:31:45.862422 7f743af67a80 Options.inplace_update_support: 0
+2021/03/14-07:31:45.862423 7f743af67a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:31:45.862424 7f743af67a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:31:45.862425 7f743af67a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:31:45.862426 7f743af67a80 Options.bloom_locality: 0
+2021/03/14-07:31:45.862427 7f743af67a80 Options.max_successive_merges: 0
+2021/03/14-07:31:45.862428 7f743af67a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:31:45.862429 7f743af67a80 Options.paranoid_file_checks: 0
+2021/03/14-07:31:45.862430 7f743af67a80 Options.force_consistency_checks: 0
+2021/03/14-07:31:45.862431 7f743af67a80 Options.report_bg_io_stats: 0
+2021/03/14-07:31:45.863024 7f743af67a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:31:45.863029 7f743af67a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:31:45.863271 7f743af67a80 EVENT_LOG_v1 {"time_micros": 1615703505863255, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:31:45.863279 7f743af67a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:31:46.852254 7f743af67a80 EVENT_LOG_v1 {"time_micros": 1615703506852251, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703753370345 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703753370345
new file mode 100644
index 0000000..8c33ad3
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703753370345
@@ -0,0 +1,186 @@
+2021/03/14-07:31:46.865669 7f743af67a80 RocksDB version: 5.11.3
+2021/03/14-07:31:46.865721 7f743af67a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:31:46.865722 7f743af67a80 Compile date Mar 13 2021
+2021/03/14-07:31:46.865727 7f743af67a80 DB SUMMARY
+2021/03/14-07:31:46.865874 7f743af67a80 CURRENT file: CURRENT
+2021/03/14-07:31:46.865875 7f743af67a80 IDENTITY file: IDENTITY
+2021/03/14-07:31:46.865889 7f743af67a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:31:46.865891 7f743af67a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:31:46.865891 7f743af67a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:31:46.865897 7f743af67a80 Options.error_if_exists: 0
+2021/03/14-07:31:46.865897 7f743af67a80 Options.create_if_missing: 1
+2021/03/14-07:31:46.865898 7f743af67a80 Options.paranoid_checks: 1
+2021/03/14-07:31:46.865898 7f743af67a80 Options.env: 0x7f743b921080
+2021/03/14-07:31:46.865899 7f743af67a80 Options.info_log: 0x18f0fa0
+2021/03/14-07:31:46.865900 7f743af67a80 Options.max_file_opening_threads: 16
+2021/03/14-07:31:46.865900 7f743af67a80 Options.statistics: (nil)
+2021/03/14-07:31:46.865901 7f743af67a80 Options.use_fsync: 0
+2021/03/14-07:31:46.865901 7f743af67a80 Options.max_log_file_size: 0
+2021/03/14-07:31:46.865902 7f743af67a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:31:46.865903 7f743af67a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:31:46.865903 7f743af67a80 Options.keep_log_file_num: 1000
+2021/03/14-07:31:46.865904 7f743af67a80 Options.recycle_log_file_num: 0
+2021/03/14-07:31:46.865905 7f743af67a80 Options.allow_fallocate: 1
+2021/03/14-07:31:46.865905 7f743af67a80 Options.allow_mmap_reads: 0
+2021/03/14-07:31:46.865906 7f743af67a80 Options.allow_mmap_writes: 0
+2021/03/14-07:31:46.865906 7f743af67a80 Options.use_direct_reads: 0
+2021/03/14-07:31:46.865907 7f743af67a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:31:46.865907 7f743af67a80 Options.create_missing_column_families: 0
+2021/03/14-07:31:46.865908 7f743af67a80 Options.db_log_dir:
+2021/03/14-07:31:46.865908 7f743af67a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:31:46.865909 7f743af67a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:31:46.865909 7f743af67a80 Options.max_subcompactions: 1
+2021/03/14-07:31:46.865910 7f743af67a80 Options.max_background_flushes: -1
+2021/03/14-07:31:46.865911 7f743af67a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:31:46.865911 7f743af67a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:31:46.865912 7f743af67a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:31:46.865912 7f743af67a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:31:46.865913 7f743af67a80 Options.advise_random_on_open: 1
+2021/03/14-07:31:46.865913 7f743af67a80 Options.db_write_buffer_size: 0
+2021/03/14-07:31:46.865914 7f743af67a80 Options.write_buffer_manager: 0x18d8e90
+2021/03/14-07:31:46.865915 7f743af67a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:31:46.865915 7f743af67a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:31:46.865916 7f743af67a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:31:46.865916 7f743af67a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:31:46.865917 7f743af67a80 Options.rate_limiter: (nil)
+2021/03/14-07:31:46.865918 7f743af67a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:31:46.865925 7f743af67a80 Options.wal_recovery_mode: 2
+2021/03/14-07:31:46.865926 7f743af67a80 Options.enable_thread_tracking: 0
+2021/03/14-07:31:46.865926 7f743af67a80 Options.enable_pipelined_write: 0
+2021/03/14-07:31:46.865927 7f743af67a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:31:46.865927 7f743af67a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:31:46.865928 7f743af67a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:31:46.865929 7f743af67a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:31:46.865929 7f743af67a80 Options.row_cache: None
+2021/03/14-07:31:46.865930 7f743af67a80 Options.wal_filter: None
+2021/03/14-07:31:46.865930 7f743af67a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:31:46.865931 7f743af67a80 Options.allow_ingest_behind: 0
+2021/03/14-07:31:46.865931 7f743af67a80 Options.preserve_deletes: 0
+2021/03/14-07:31:46.865932 7f743af67a80 Options.two_write_queues: 0
+2021/03/14-07:31:46.865932 7f743af67a80 Options.manual_wal_flush: 0
+2021/03/14-07:31:46.865934 7f743af67a80 Options.max_background_jobs: 16
+2021/03/14-07:31:46.865934 7f743af67a80 Options.max_background_compactions: -1
+2021/03/14-07:31:46.865935 7f743af67a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:31:46.865935 7f743af67a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:31:46.865936 7f743af67a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:31:46.865936 7f743af67a80 Options.max_total_wal_size: 0
+2021/03/14-07:31:46.865937 7f743af67a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:31:46.865938 7f743af67a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:31:46.865938 7f743af67a80 Options.max_open_files: -1
+2021/03/14-07:31:46.865939 7f743af67a80 Options.bytes_per_sync: 0
+2021/03/14-07:31:46.865939 7f743af67a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:31:46.865940 7f743af67a80 Options.compaction_readahead_size: 0
+2021/03/14-07:31:46.865940 7f743af67a80 Compression algorithms supported:
+2021/03/14-07:31:46.865941 7f743af67a80 Snappy supported: 1
+2021/03/14-07:31:46.865942 7f743af67a80 Zlib supported: 1
+2021/03/14-07:31:46.865942 7f743af67a80 Bzip supported: 1
+2021/03/14-07:31:46.865943 7f743af67a80 LZ4 supported: 1
+2021/03/14-07:31:46.865943 7f743af67a80 ZSTDNotFinal supported: 1
+2021/03/14-07:31:46.865947 7f743af67a80 ZSTD supported: 1
+2021/03/14-07:31:46.865950 7f743af67a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:31:46.865952 7f743af67a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:31:46.866040 7f743af67a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:31:46.866091 7f743af67a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:31:46.866093 7f743af67a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:31:46.866094 7f743af67a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:31:46.866094 7f743af67a80 Options.compaction_filter: None
+2021/03/14-07:31:46.866095 7f743af67a80 Options.compaction_filter_factory: None
+2021/03/14-07:31:46.866096 7f743af67a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:31:46.866096 7f743af67a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:31:46.866112 7f743af67a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x18e8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x18cdf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:31:46.866113 7f743af67a80 Options.write_buffer_size: 134217728
+2021/03/14-07:31:46.866114 7f743af67a80 Options.max_write_buffer_number: 6
+2021/03/14-07:31:46.866114 7f743af67a80 Options.compression[0]: NoCompression
+2021/03/14-07:31:46.866115 7f743af67a80 Options.compression[1]: NoCompression
+2021/03/14-07:31:46.866116 7f743af67a80 Options.compression[2]: Snappy
+2021/03/14-07:31:46.866116 7f743af67a80 Options.compression[3]: Snappy
+2021/03/14-07:31:46.866117 7f743af67a80 Options.compression[4]: Snappy
+2021/03/14-07:31:46.866117 7f743af67a80 Options.compression[5]: Snappy
+2021/03/14-07:31:46.866118 7f743af67a80 Options.compression[6]: Snappy
+2021/03/14-07:31:46.866119 7f743af67a80 Options.bottommost_compression: Disabled
+2021/03/14-07:31:46.866119 7f743af67a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:31:46.866120 7f743af67a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:31:46.866121 7f743af67a80 Options.num_levels: 7
+2021/03/14-07:31:46.866121 7f743af67a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:31:46.866122 7f743af67a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:31:46.866122 7f743af67a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:31:46.866123 7f743af67a80 Options.compression_opts.level: -1
+2021/03/14-07:31:46.866123 7f743af67a80 Options.compression_opts.strategy: 0
+2021/03/14-07:31:46.866124 7f743af67a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:31:46.866124 7f743af67a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:31:46.866125 7f743af67a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:31:46.866126 7f743af67a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:31:46.866126 7f743af67a80 Options.target_file_size_base: 67108864
+2021/03/14-07:31:46.866127 7f743af67a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:31:46.866127 7f743af67a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:31:46.866128 7f743af67a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:31:46.866128 7f743af67a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:31:46.866130 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:31:46.866137 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:31:46.866138 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:31:46.866138 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:31:46.866139 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:31:46.866139 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:31:46.866140 7f743af67a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:31:46.866140 7f743af67a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:31:46.866141 7f743af67a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:31:46.866142 7f743af67a80 Options.arena_block_size: 16777216
+2021/03/14-07:31:46.866142 7f743af67a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:31:46.866143 7f743af67a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:31:46.866143 7f743af67a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:31:46.866144 7f743af67a80 Options.disable_auto_compactions: 0
+2021/03/14-07:31:46.866145 7f743af67a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:31:46.866146 7f743af67a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:31:46.866147 7f743af67a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:31:46.866147 7f743af67a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:31:46.866148 7f743af67a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:31:46.866149 7f743af67a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:31:46.866149 7f743af67a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:31:46.866150 7f743af67a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:31:46.866151 7f743af67a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:31:46.866151 7f743af67a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:31:46.866152 7f743af67a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:31:46.866152 7f743af67a80 Options.table_properties_collectors:
+2021/03/14-07:31:46.866153 7f743af67a80 Options.inplace_update_support: 0
+2021/03/14-07:31:46.866153 7f743af67a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:31:46.866154 7f743af67a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:31:46.866155 7f743af67a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:31:46.866156 7f743af67a80 Options.bloom_locality: 0
+2021/03/14-07:31:46.866156 7f743af67a80 Options.max_successive_merges: 0
+2021/03/14-07:31:46.866157 7f743af67a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:31:46.866157 7f743af67a80 Options.paranoid_file_checks: 0
+2021/03/14-07:31:46.866158 7f743af67a80 Options.force_consistency_checks: 0
+2021/03/14-07:31:46.866158 7f743af67a80 Options.report_bg_io_stats: 0
+2021/03/14-07:31:46.866529 7f743af67a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:31:46.866532 7f743af67a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:31:46.866683 7f743af67a80 EVENT_LOG_v1 {"time_micros": 1615703506866673, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:31:46.866688 7f743af67a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:31:47.628954 7f743af67a80 EVENT_LOG_v1 {"time_micros": 1615703507628951, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703754546268 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703754546268
new file mode 100644
index 0000000..c32cbeb
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703754546268
@@ -0,0 +1,186 @@
+2021/03/14-07:35:53.371031 7f8b62101a80 RocksDB version: 5.11.3
+2021/03/14-07:35:53.371118 7f8b62101a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:35:53.371120 7f8b62101a80 Compile date Mar 13 2021
+2021/03/14-07:35:53.371124 7f8b62101a80 DB SUMMARY
+2021/03/14-07:35:53.371378 7f8b62101a80 CURRENT file: CURRENT
+2021/03/14-07:35:53.371381 7f8b62101a80 IDENTITY file: IDENTITY
+2021/03/14-07:35:53.371415 7f8b62101a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:35:53.371418 7f8b62101a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:35:53.371419 7f8b62101a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:35:53.371431 7f8b62101a80 Options.error_if_exists: 0
+2021/03/14-07:35:53.371433 7f8b62101a80 Options.create_if_missing: 1
+2021/03/14-07:35:53.371434 7f8b62101a80 Options.paranoid_checks: 1
+2021/03/14-07:35:53.371435 7f8b62101a80 Options.env: 0x7f8b62abb080
+2021/03/14-07:35:53.371436 7f8b62101a80 Options.info_log: 0x1dccfa0
+2021/03/14-07:35:53.371438 7f8b62101a80 Options.max_file_opening_threads: 16
+2021/03/14-07:35:53.371439 7f8b62101a80 Options.statistics: (nil)
+2021/03/14-07:35:53.371441 7f8b62101a80 Options.use_fsync: 0
+2021/03/14-07:35:53.371442 7f8b62101a80 Options.max_log_file_size: 0
+2021/03/14-07:35:53.371443 7f8b62101a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:35:53.371445 7f8b62101a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:35:53.371446 7f8b62101a80 Options.keep_log_file_num: 1000
+2021/03/14-07:35:53.371447 7f8b62101a80 Options.recycle_log_file_num: 0
+2021/03/14-07:35:53.371448 7f8b62101a80 Options.allow_fallocate: 1
+2021/03/14-07:35:53.371450 7f8b62101a80 Options.allow_mmap_reads: 0
+2021/03/14-07:35:53.371451 7f8b62101a80 Options.allow_mmap_writes: 0
+2021/03/14-07:35:53.371453 7f8b62101a80 Options.use_direct_reads: 0
+2021/03/14-07:35:53.371454 7f8b62101a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:35:53.371521 7f8b62101a80 Options.create_missing_column_families: 0
+2021/03/14-07:35:53.371524 7f8b62101a80 Options.db_log_dir:
+2021/03/14-07:35:53.371526 7f8b62101a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:35:53.371528 7f8b62101a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:35:53.371529 7f8b62101a80 Options.max_subcompactions: 1
+2021/03/14-07:35:53.371531 7f8b62101a80 Options.max_background_flushes: -1
+2021/03/14-07:35:53.371533 7f8b62101a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:35:53.371535 7f8b62101a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:35:53.371536 7f8b62101a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:35:53.371538 7f8b62101a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:35:53.371539 7f8b62101a80 Options.advise_random_on_open: 1
+2021/03/14-07:35:53.371541 7f8b62101a80 Options.db_write_buffer_size: 0
+2021/03/14-07:35:53.371542 7f8b62101a80 Options.write_buffer_manager: 0x1db4e90
+2021/03/14-07:35:53.371544 7f8b62101a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:35:53.371545 7f8b62101a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:35:53.371547 7f8b62101a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:35:53.371548 7f8b62101a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:35:53.371549 7f8b62101a80 Options.rate_limiter: (nil)
+2021/03/14-07:35:53.371553 7f8b62101a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:35:53.371574 7f8b62101a80 Options.wal_recovery_mode: 2
+2021/03/14-07:35:53.371576 7f8b62101a80 Options.enable_thread_tracking: 0
+2021/03/14-07:35:53.371608 7f8b62101a80 Options.enable_pipelined_write: 0
+2021/03/14-07:35:53.371610 7f8b62101a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:35:53.371612 7f8b62101a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:35:53.371613 7f8b62101a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:35:53.371615 7f8b62101a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:35:53.371617 7f8b62101a80 Options.row_cache: None
+2021/03/14-07:35:53.371618 7f8b62101a80 Options.wal_filter: None
+2021/03/14-07:35:53.371620 7f8b62101a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:35:53.371620 7f8b62101a80 Options.allow_ingest_behind: 0
+2021/03/14-07:35:53.371621 7f8b62101a80 Options.preserve_deletes: 0
+2021/03/14-07:35:53.371622 7f8b62101a80 Options.two_write_queues: 0
+2021/03/14-07:35:53.371623 7f8b62101a80 Options.manual_wal_flush: 0
+2021/03/14-07:35:53.371625 7f8b62101a80 Options.max_background_jobs: 16
+2021/03/14-07:35:53.371626 7f8b62101a80 Options.max_background_compactions: -1
+2021/03/14-07:35:53.371627 7f8b62101a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:35:53.371628 7f8b62101a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:35:53.371629 7f8b62101a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:35:53.371630 7f8b62101a80 Options.max_total_wal_size: 0
+2021/03/14-07:35:53.371631 7f8b62101a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:35:53.371632 7f8b62101a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:35:53.371633 7f8b62101a80 Options.max_open_files: -1
+2021/03/14-07:35:53.371634 7f8b62101a80 Options.bytes_per_sync: 0
+2021/03/14-07:35:53.371635 7f8b62101a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:35:53.371635 7f8b62101a80 Options.compaction_readahead_size: 0
+2021/03/14-07:35:53.371636 7f8b62101a80 Compression algorithms supported:
+2021/03/14-07:35:53.371637 7f8b62101a80 Snappy supported: 1
+2021/03/14-07:35:53.371638 7f8b62101a80 Zlib supported: 1
+2021/03/14-07:35:53.371639 7f8b62101a80 Bzip supported: 1
+2021/03/14-07:35:53.371640 7f8b62101a80 LZ4 supported: 1
+2021/03/14-07:35:53.371641 7f8b62101a80 ZSTDNotFinal supported: 1
+2021/03/14-07:35:53.371649 7f8b62101a80 ZSTD supported: 1
+2021/03/14-07:35:53.371655 7f8b62101a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:35:53.371657 7f8b62101a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:35:53.371848 7f8b62101a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:35:53.371942 7f8b62101a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:35:53.371945 7f8b62101a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:35:53.371946 7f8b62101a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:35:53.371948 7f8b62101a80 Options.compaction_filter: None
+2021/03/14-07:35:53.371948 7f8b62101a80 Options.compaction_filter_factory: None
+2021/03/14-07:35:53.371950 7f8b62101a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:35:53.371951 7f8b62101a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:35:53.371976 7f8b62101a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1dc4820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1da9f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:35:53.371977 7f8b62101a80 Options.write_buffer_size: 134217728
+2021/03/14-07:35:53.371978 7f8b62101a80 Options.max_write_buffer_number: 6
+2021/03/14-07:35:53.371979 7f8b62101a80 Options.compression[0]: NoCompression
+2021/03/14-07:35:53.371980 7f8b62101a80 Options.compression[1]: NoCompression
+2021/03/14-07:35:53.371981 7f8b62101a80 Options.compression[2]: Snappy
+2021/03/14-07:35:53.371982 7f8b62101a80 Options.compression[3]: Snappy
+2021/03/14-07:35:53.371983 7f8b62101a80 Options.compression[4]: Snappy
+2021/03/14-07:35:53.371984 7f8b62101a80 Options.compression[5]: Snappy
+2021/03/14-07:35:53.371985 7f8b62101a80 Options.compression[6]: Snappy
+2021/03/14-07:35:53.371986 7f8b62101a80 Options.bottommost_compression: Disabled
+2021/03/14-07:35:53.371987 7f8b62101a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:35:53.371988 7f8b62101a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:35:53.371989 7f8b62101a80 Options.num_levels: 7
+2021/03/14-07:35:53.371990 7f8b62101a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:35:53.371991 7f8b62101a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:35:53.371992 7f8b62101a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:35:53.371993 7f8b62101a80 Options.compression_opts.level: -1
+2021/03/14-07:35:53.371994 7f8b62101a80 Options.compression_opts.strategy: 0
+2021/03/14-07:35:53.371995 7f8b62101a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:35:53.371996 7f8b62101a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:35:53.371997 7f8b62101a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:35:53.371998 7f8b62101a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:35:53.371998 7f8b62101a80 Options.target_file_size_base: 67108864
+2021/03/14-07:35:53.371999 7f8b62101a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:35:53.372000 7f8b62101a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:35:53.372001 7f8b62101a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:35:53.372002 7f8b62101a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:35:53.372004 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:35:53.372017 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:35:53.372018 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:35:53.372019 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:35:53.372020 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:35:53.372021 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:35:53.372021 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:35:53.372022 7f8b62101a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:35:53.372023 7f8b62101a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:35:53.372024 7f8b62101a80 Options.arena_block_size: 16777216
+2021/03/14-07:35:53.372025 7f8b62101a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:35:53.372026 7f8b62101a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:35:53.372027 7f8b62101a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:35:53.372028 7f8b62101a80 Options.disable_auto_compactions: 0
+2021/03/14-07:35:53.372030 7f8b62101a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:35:53.372031 7f8b62101a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:35:53.372032 7f8b62101a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:35:53.372033 7f8b62101a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:35:53.372034 7f8b62101a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:35:53.372035 7f8b62101a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:35:53.372036 7f8b62101a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:35:53.372038 7f8b62101a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:35:53.372039 7f8b62101a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:35:53.372040 7f8b62101a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:35:53.372041 7f8b62101a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:35:53.372042 7f8b62101a80 Options.table_properties_collectors:
+2021/03/14-07:35:53.372043 7f8b62101a80 Options.inplace_update_support: 0
+2021/03/14-07:35:53.372043 7f8b62101a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:35:53.372044 7f8b62101a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:35:53.372046 7f8b62101a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:35:53.372047 7f8b62101a80 Options.bloom_locality: 0
+2021/03/14-07:35:53.372047 7f8b62101a80 Options.max_successive_merges: 0
+2021/03/14-07:35:53.372048 7f8b62101a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:35:53.372049 7f8b62101a80 Options.paranoid_file_checks: 0
+2021/03/14-07:35:53.372050 7f8b62101a80 Options.force_consistency_checks: 0
+2021/03/14-07:35:53.372051 7f8b62101a80 Options.report_bg_io_stats: 0
+2021/03/14-07:35:53.372714 7f8b62101a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:35:53.372718 7f8b62101a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:35:53.372967 7f8b62101a80 EVENT_LOG_v1 {"time_micros": 1615703753372946, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:35:53.372976 7f8b62101a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:35:54.527434 7f8b62101a80 EVENT_LOG_v1 {"time_micros": 1615703754527429, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703755640854 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703755640854
new file mode 100644
index 0000000..81abe9c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703755640854
@@ -0,0 +1,186 @@
+2021/03/14-07:35:54.546866 7f8b62101a80 RocksDB version: 5.11.3
+2021/03/14-07:35:54.546946 7f8b62101a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:35:54.546948 7f8b62101a80 Compile date Mar 13 2021
+2021/03/14-07:35:54.546952 7f8b62101a80 DB SUMMARY
+2021/03/14-07:35:54.547180 7f8b62101a80 CURRENT file: CURRENT
+2021/03/14-07:35:54.547181 7f8b62101a80 IDENTITY file: IDENTITY
+2021/03/14-07:35:54.547204 7f8b62101a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:35:54.547206 7f8b62101a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:35:54.547207 7f8b62101a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:35:54.547215 7f8b62101a80 Options.error_if_exists: 0
+2021/03/14-07:35:54.547216 7f8b62101a80 Options.create_if_missing: 1
+2021/03/14-07:35:54.547217 7f8b62101a80 Options.paranoid_checks: 1
+2021/03/14-07:35:54.547218 7f8b62101a80 Options.env: 0x7f8b62abb080
+2021/03/14-07:35:54.547219 7f8b62101a80 Options.info_log: 0x1dccfa0
+2021/03/14-07:35:54.547220 7f8b62101a80 Options.max_file_opening_threads: 16
+2021/03/14-07:35:54.547221 7f8b62101a80 Options.statistics: (nil)
+2021/03/14-07:35:54.547222 7f8b62101a80 Options.use_fsync: 0
+2021/03/14-07:35:54.547223 7f8b62101a80 Options.max_log_file_size: 0
+2021/03/14-07:35:54.547224 7f8b62101a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:35:54.547225 7f8b62101a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:35:54.547226 7f8b62101a80 Options.keep_log_file_num: 1000
+2021/03/14-07:35:54.547226 7f8b62101a80 Options.recycle_log_file_num: 0
+2021/03/14-07:35:54.547227 7f8b62101a80 Options.allow_fallocate: 1
+2021/03/14-07:35:54.547228 7f8b62101a80 Options.allow_mmap_reads: 0
+2021/03/14-07:35:54.547229 7f8b62101a80 Options.allow_mmap_writes: 0
+2021/03/14-07:35:54.547230 7f8b62101a80 Options.use_direct_reads: 0
+2021/03/14-07:35:54.547231 7f8b62101a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:35:54.547232 7f8b62101a80 Options.create_missing_column_families: 0
+2021/03/14-07:35:54.547232 7f8b62101a80 Options.db_log_dir:
+2021/03/14-07:35:54.547233 7f8b62101a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:35:54.547234 7f8b62101a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:35:54.547235 7f8b62101a80 Options.max_subcompactions: 1
+2021/03/14-07:35:54.547236 7f8b62101a80 Options.max_background_flushes: -1
+2021/03/14-07:35:54.547237 7f8b62101a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:35:54.547245 7f8b62101a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:35:54.547247 7f8b62101a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:35:54.547248 7f8b62101a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:35:54.547249 7f8b62101a80 Options.advise_random_on_open: 1
+2021/03/14-07:35:54.547250 7f8b62101a80 Options.db_write_buffer_size: 0
+2021/03/14-07:35:54.547250 7f8b62101a80 Options.write_buffer_manager: 0x1db4e90
+2021/03/14-07:35:54.547251 7f8b62101a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:35:54.547252 7f8b62101a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:35:54.547253 7f8b62101a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:35:54.547254 7f8b62101a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:35:54.547255 7f8b62101a80 Options.rate_limiter: (nil)
+2021/03/14-07:35:54.547257 7f8b62101a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:35:54.547270 7f8b62101a80 Options.wal_recovery_mode: 2
+2021/03/14-07:35:54.547271 7f8b62101a80 Options.enable_thread_tracking: 0
+2021/03/14-07:35:54.547272 7f8b62101a80 Options.enable_pipelined_write: 0
+2021/03/14-07:35:54.547273 7f8b62101a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:35:54.547274 7f8b62101a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:35:54.547275 7f8b62101a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:35:54.547276 7f8b62101a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:35:54.547277 7f8b62101a80 Options.row_cache: None
+2021/03/14-07:35:54.547277 7f8b62101a80 Options.wal_filter: None
+2021/03/14-07:35:54.547278 7f8b62101a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:35:54.547279 7f8b62101a80 Options.allow_ingest_behind: 0
+2021/03/14-07:35:54.547280 7f8b62101a80 Options.preserve_deletes: 0
+2021/03/14-07:35:54.547281 7f8b62101a80 Options.two_write_queues: 0
+2021/03/14-07:35:54.547282 7f8b62101a80 Options.manual_wal_flush: 0
+2021/03/14-07:35:54.547283 7f8b62101a80 Options.max_background_jobs: 16
+2021/03/14-07:35:54.547284 7f8b62101a80 Options.max_background_compactions: -1
+2021/03/14-07:35:54.547285 7f8b62101a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:35:54.547286 7f8b62101a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:35:54.547287 7f8b62101a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:35:54.547288 7f8b62101a80 Options.max_total_wal_size: 0
+2021/03/14-07:35:54.547289 7f8b62101a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:35:54.547290 7f8b62101a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:35:54.547290 7f8b62101a80 Options.max_open_files: -1
+2021/03/14-07:35:54.547291 7f8b62101a80 Options.bytes_per_sync: 0
+2021/03/14-07:35:54.547292 7f8b62101a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:35:54.547293 7f8b62101a80 Options.compaction_readahead_size: 0
+2021/03/14-07:35:54.547294 7f8b62101a80 Compression algorithms supported:
+2021/03/14-07:35:54.547295 7f8b62101a80 Snappy supported: 1
+2021/03/14-07:35:54.547296 7f8b62101a80 Zlib supported: 1
+2021/03/14-07:35:54.547297 7f8b62101a80 Bzip supported: 1
+2021/03/14-07:35:54.547297 7f8b62101a80 LZ4 supported: 1
+2021/03/14-07:35:54.547298 7f8b62101a80 ZSTDNotFinal supported: 1
+2021/03/14-07:35:54.547305 7f8b62101a80 ZSTD supported: 1
+2021/03/14-07:35:54.547309 7f8b62101a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:35:54.547311 7f8b62101a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:35:54.547442 7f8b62101a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:35:54.547525 7f8b62101a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:35:54.547527 7f8b62101a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:35:54.547529 7f8b62101a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:35:54.547530 7f8b62101a80 Options.compaction_filter: None
+2021/03/14-07:35:54.547531 7f8b62101a80 Options.compaction_filter_factory: None
+2021/03/14-07:35:54.547532 7f8b62101a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:35:54.547533 7f8b62101a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:35:54.547555 7f8b62101a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1dc4820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1da9f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:35:54.547556 7f8b62101a80 Options.write_buffer_size: 134217728
+2021/03/14-07:35:54.547557 7f8b62101a80 Options.max_write_buffer_number: 6
+2021/03/14-07:35:54.547559 7f8b62101a80 Options.compression[0]: NoCompression
+2021/03/14-07:35:54.547560 7f8b62101a80 Options.compression[1]: NoCompression
+2021/03/14-07:35:54.547561 7f8b62101a80 Options.compression[2]: Snappy
+2021/03/14-07:35:54.547561 7f8b62101a80 Options.compression[3]: Snappy
+2021/03/14-07:35:54.547562 7f8b62101a80 Options.compression[4]: Snappy
+2021/03/14-07:35:54.547563 7f8b62101a80 Options.compression[5]: Snappy
+2021/03/14-07:35:54.547564 7f8b62101a80 Options.compression[6]: Snappy
+2021/03/14-07:35:54.547565 7f8b62101a80 Options.bottommost_compression: Disabled
+2021/03/14-07:35:54.547566 7f8b62101a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:35:54.547567 7f8b62101a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:35:54.547568 7f8b62101a80 Options.num_levels: 7
+2021/03/14-07:35:54.547569 7f8b62101a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:35:54.547570 7f8b62101a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:35:54.547571 7f8b62101a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:35:54.547572 7f8b62101a80 Options.compression_opts.level: -1
+2021/03/14-07:35:54.547572 7f8b62101a80 Options.compression_opts.strategy: 0
+2021/03/14-07:35:54.547573 7f8b62101a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:35:54.547574 7f8b62101a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:35:54.547575 7f8b62101a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:35:54.547576 7f8b62101a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:35:54.547577 7f8b62101a80 Options.target_file_size_base: 67108864
+2021/03/14-07:35:54.547578 7f8b62101a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:35:54.547578 7f8b62101a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:35:54.547579 7f8b62101a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:35:54.547580 7f8b62101a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:35:54.547582 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:35:54.547593 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:35:54.547594 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:35:54.547595 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:35:54.547596 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:35:54.547597 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:35:54.547598 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:35:54.547598 7f8b62101a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:35:54.547599 7f8b62101a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:35:54.547600 7f8b62101a80 Options.arena_block_size: 16777216
+2021/03/14-07:35:54.547601 7f8b62101a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:35:54.547602 7f8b62101a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:35:54.547603 7f8b62101a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:35:54.547604 7f8b62101a80 Options.disable_auto_compactions: 0
+2021/03/14-07:35:54.547606 7f8b62101a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:35:54.547607 7f8b62101a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:35:54.547608 7f8b62101a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:35:54.547609 7f8b62101a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:35:54.547610 7f8b62101a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:35:54.547611 7f8b62101a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:35:54.547612 7f8b62101a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:35:54.547613 7f8b62101a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:35:54.547614 7f8b62101a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:35:54.547615 7f8b62101a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:35:54.547616 7f8b62101a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:35:54.547617 7f8b62101a80 Options.table_properties_collectors:
+2021/03/14-07:35:54.547618 7f8b62101a80 Options.inplace_update_support: 0
+2021/03/14-07:35:54.547619 7f8b62101a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:35:54.547620 7f8b62101a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:35:54.547621 7f8b62101a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:35:54.547622 7f8b62101a80 Options.bloom_locality: 0
+2021/03/14-07:35:54.547623 7f8b62101a80 Options.max_successive_merges: 0
+2021/03/14-07:35:54.547624 7f8b62101a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:35:54.547624 7f8b62101a80 Options.paranoid_file_checks: 0
+2021/03/14-07:35:54.547625 7f8b62101a80 Options.force_consistency_checks: 0
+2021/03/14-07:35:54.547626 7f8b62101a80 Options.report_bg_io_stats: 0
+2021/03/14-07:35:54.548199 7f8b62101a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:35:54.548203 7f8b62101a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:35:54.548446 7f8b62101a80 EVENT_LOG_v1 {"time_micros": 1615703754548427, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:35:54.548455 7f8b62101a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:35:55.628006 7f8b62101a80 EVENT_LOG_v1 {"time_micros": 1615703755628002, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703756383518 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703756383518
new file mode 100644
index 0000000..a5c4086
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703756383518
@@ -0,0 +1,186 @@
+2021/03/14-07:35:55.641267 7f8b62101a80 RocksDB version: 5.11.3
+2021/03/14-07:35:55.641320 7f8b62101a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:35:55.641322 7f8b62101a80 Compile date Mar 13 2021
+2021/03/14-07:35:55.641324 7f8b62101a80 DB SUMMARY
+2021/03/14-07:35:55.641474 7f8b62101a80 CURRENT file: CURRENT
+2021/03/14-07:35:55.641475 7f8b62101a80 IDENTITY file: IDENTITY
+2021/03/14-07:35:55.641490 7f8b62101a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:35:55.641491 7f8b62101a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:35:55.641492 7f8b62101a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:35:55.641497 7f8b62101a80 Options.error_if_exists: 0
+2021/03/14-07:35:55.641498 7f8b62101a80 Options.create_if_missing: 1
+2021/03/14-07:35:55.641498 7f8b62101a80 Options.paranoid_checks: 1
+2021/03/14-07:35:55.641499 7f8b62101a80 Options.env: 0x7f8b62abb080
+2021/03/14-07:35:55.641499 7f8b62101a80 Options.info_log: 0x1dccfa0
+2021/03/14-07:35:55.641500 7f8b62101a80 Options.max_file_opening_threads: 16
+2021/03/14-07:35:55.641501 7f8b62101a80 Options.statistics: (nil)
+2021/03/14-07:35:55.641501 7f8b62101a80 Options.use_fsync: 0
+2021/03/14-07:35:55.641502 7f8b62101a80 Options.max_log_file_size: 0
+2021/03/14-07:35:55.641502 7f8b62101a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:35:55.641503 7f8b62101a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:35:55.641504 7f8b62101a80 Options.keep_log_file_num: 1000
+2021/03/14-07:35:55.641504 7f8b62101a80 Options.recycle_log_file_num: 0
+2021/03/14-07:35:55.641505 7f8b62101a80 Options.allow_fallocate: 1
+2021/03/14-07:35:55.641505 7f8b62101a80 Options.allow_mmap_reads: 0
+2021/03/14-07:35:55.641506 7f8b62101a80 Options.allow_mmap_writes: 0
+2021/03/14-07:35:55.641507 7f8b62101a80 Options.use_direct_reads: 0
+2021/03/14-07:35:55.641507 7f8b62101a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:35:55.641508 7f8b62101a80 Options.create_missing_column_families: 0
+2021/03/14-07:35:55.641508 7f8b62101a80 Options.db_log_dir:
+2021/03/14-07:35:55.641509 7f8b62101a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:35:55.641509 7f8b62101a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:35:55.641510 7f8b62101a80 Options.max_subcompactions: 1
+2021/03/14-07:35:55.641510 7f8b62101a80 Options.max_background_flushes: -1
+2021/03/14-07:35:55.641511 7f8b62101a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:35:55.641512 7f8b62101a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:35:55.641512 7f8b62101a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:35:55.641513 7f8b62101a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:35:55.641513 7f8b62101a80 Options.advise_random_on_open: 1
+2021/03/14-07:35:55.641514 7f8b62101a80 Options.db_write_buffer_size: 0
+2021/03/14-07:35:55.641514 7f8b62101a80 Options.write_buffer_manager: 0x1db4e90
+2021/03/14-07:35:55.641515 7f8b62101a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:35:55.641515 7f8b62101a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:35:55.641516 7f8b62101a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:35:55.641517 7f8b62101a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:35:55.641517 7f8b62101a80 Options.rate_limiter: (nil)
+2021/03/14-07:35:55.641518 7f8b62101a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:35:55.641526 7f8b62101a80 Options.wal_recovery_mode: 2
+2021/03/14-07:35:55.641526 7f8b62101a80 Options.enable_thread_tracking: 0
+2021/03/14-07:35:55.641527 7f8b62101a80 Options.enable_pipelined_write: 0
+2021/03/14-07:35:55.641528 7f8b62101a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:35:55.641528 7f8b62101a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:35:55.641529 7f8b62101a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:35:55.641529 7f8b62101a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:35:55.641530 7f8b62101a80 Options.row_cache: None
+2021/03/14-07:35:55.641530 7f8b62101a80 Options.wal_filter: None
+2021/03/14-07:35:55.641531 7f8b62101a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:35:55.641532 7f8b62101a80 Options.allow_ingest_behind: 0
+2021/03/14-07:35:55.641532 7f8b62101a80 Options.preserve_deletes: 0
+2021/03/14-07:35:55.641533 7f8b62101a80 Options.two_write_queues: 0
+2021/03/14-07:35:55.641533 7f8b62101a80 Options.manual_wal_flush: 0
+2021/03/14-07:35:55.641534 7f8b62101a80 Options.max_background_jobs: 16
+2021/03/14-07:35:55.641535 7f8b62101a80 Options.max_background_compactions: -1
+2021/03/14-07:35:55.641536 7f8b62101a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:35:55.641536 7f8b62101a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:35:55.641537 7f8b62101a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:35:55.641537 7f8b62101a80 Options.max_total_wal_size: 0
+2021/03/14-07:35:55.641538 7f8b62101a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:35:55.641538 7f8b62101a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:35:55.641539 7f8b62101a80 Options.max_open_files: -1
+2021/03/14-07:35:55.641540 7f8b62101a80 Options.bytes_per_sync: 0
+2021/03/14-07:35:55.641540 7f8b62101a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:35:55.641541 7f8b62101a80 Options.compaction_readahead_size: 0
+2021/03/14-07:35:55.641541 7f8b62101a80 Compression algorithms supported:
+2021/03/14-07:35:55.641542 7f8b62101a80 Snappy supported: 1
+2021/03/14-07:35:55.641542 7f8b62101a80 Zlib supported: 1
+2021/03/14-07:35:55.641543 7f8b62101a80 Bzip supported: 1
+2021/03/14-07:35:55.641543 7f8b62101a80 LZ4 supported: 1
+2021/03/14-07:35:55.641544 7f8b62101a80 ZSTDNotFinal supported: 1
+2021/03/14-07:35:55.641548 7f8b62101a80 ZSTD supported: 1
+2021/03/14-07:35:55.641551 7f8b62101a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:35:55.641552 7f8b62101a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:35:55.641640 7f8b62101a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:35:55.641693 7f8b62101a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:35:55.641695 7f8b62101a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:35:55.641695 7f8b62101a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:35:55.641696 7f8b62101a80 Options.compaction_filter: None
+2021/03/14-07:35:55.641697 7f8b62101a80 Options.compaction_filter_factory: None
+2021/03/14-07:35:55.641697 7f8b62101a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:35:55.641698 7f8b62101a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:35:55.641711 7f8b62101a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1dc4820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1da9f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:35:55.641712 7f8b62101a80 Options.write_buffer_size: 134217728
+2021/03/14-07:35:55.641713 7f8b62101a80 Options.max_write_buffer_number: 6
+2021/03/14-07:35:55.641713 7f8b62101a80 Options.compression[0]: NoCompression
+2021/03/14-07:35:55.641714 7f8b62101a80 Options.compression[1]: NoCompression
+2021/03/14-07:35:55.641715 7f8b62101a80 Options.compression[2]: Snappy
+2021/03/14-07:35:55.641715 7f8b62101a80 Options.compression[3]: Snappy
+2021/03/14-07:35:55.641716 7f8b62101a80 Options.compression[4]: Snappy
+2021/03/14-07:35:55.641716 7f8b62101a80 Options.compression[5]: Snappy
+2021/03/14-07:35:55.641717 7f8b62101a80 Options.compression[6]: Snappy
+2021/03/14-07:35:55.641717 7f8b62101a80 Options.bottommost_compression: Disabled
+2021/03/14-07:35:55.641718 7f8b62101a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:35:55.641719 7f8b62101a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:35:55.641719 7f8b62101a80 Options.num_levels: 7
+2021/03/14-07:35:55.641720 7f8b62101a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:35:55.641721 7f8b62101a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:35:55.641721 7f8b62101a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:35:55.641722 7f8b62101a80 Options.compression_opts.level: -1
+2021/03/14-07:35:55.641722 7f8b62101a80 Options.compression_opts.strategy: 0
+2021/03/14-07:35:55.641723 7f8b62101a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:35:55.641723 7f8b62101a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:35:55.641724 7f8b62101a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:35:55.641724 7f8b62101a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:35:55.641725 7f8b62101a80 Options.target_file_size_base: 67108864
+2021/03/14-07:35:55.641726 7f8b62101a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:35:55.641726 7f8b62101a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:35:55.641727 7f8b62101a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:35:55.641728 7f8b62101a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:35:55.641729 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:35:55.641736 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:35:55.641737 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:35:55.641737 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:35:55.641738 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:35:55.641738 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:35:55.641739 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:35:55.641739 7f8b62101a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:35:55.641740 7f8b62101a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:35:55.641741 7f8b62101a80 Options.arena_block_size: 16777216
+2021/03/14-07:35:55.641741 7f8b62101a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:35:55.641742 7f8b62101a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:35:55.641742 7f8b62101a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:35:55.641743 7f8b62101a80 Options.disable_auto_compactions: 0
+2021/03/14-07:35:55.641744 7f8b62101a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:35:55.641745 7f8b62101a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:35:55.641746 7f8b62101a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:35:55.641746 7f8b62101a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:35:55.641747 7f8b62101a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:35:55.641748 7f8b62101a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:35:55.641748 7f8b62101a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:35:55.641749 7f8b62101a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:35:55.641750 7f8b62101a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:35:55.641750 7f8b62101a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:35:55.641751 7f8b62101a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:35:55.641752 7f8b62101a80 Options.table_properties_collectors:
+2021/03/14-07:35:55.641752 7f8b62101a80 Options.inplace_update_support: 0
+2021/03/14-07:35:55.641753 7f8b62101a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:35:55.641753 7f8b62101a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:35:55.641754 7f8b62101a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:35:55.641755 7f8b62101a80 Options.bloom_locality: 0
+2021/03/14-07:35:55.641755 7f8b62101a80 Options.max_successive_merges: 0
+2021/03/14-07:35:55.641756 7f8b62101a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:35:55.641756 7f8b62101a80 Options.paranoid_file_checks: 0
+2021/03/14-07:35:55.641757 7f8b62101a80 Options.force_consistency_checks: 0
+2021/03/14-07:35:55.641757 7f8b62101a80 Options.report_bg_io_stats: 0
+2021/03/14-07:35:55.642140 7f8b62101a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:35:55.642142 7f8b62101a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:35:55.642308 7f8b62101a80 EVENT_LOG_v1 {"time_micros": 1615703755642295, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:35:55.642314 7f8b62101a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:35:56.369909 7f8b62101a80 EVENT_LOG_v1 {"time_micros": 1615703756369906, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703795681102 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703795681102
new file mode 100644
index 0000000..a911c57
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703795681102
@@ -0,0 +1,186 @@
+2021/03/14-07:35:56.383931 7f8b62101a80 RocksDB version: 5.11.3
+2021/03/14-07:35:56.383984 7f8b62101a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:35:56.383985 7f8b62101a80 Compile date Mar 13 2021
+2021/03/14-07:35:56.383988 7f8b62101a80 DB SUMMARY
+2021/03/14-07:35:56.384138 7f8b62101a80 CURRENT file: CURRENT
+2021/03/14-07:35:56.384139 7f8b62101a80 IDENTITY file: IDENTITY
+2021/03/14-07:35:56.384154 7f8b62101a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:35:56.384155 7f8b62101a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:35:56.384155 7f8b62101a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:35:56.384161 7f8b62101a80 Options.error_if_exists: 0
+2021/03/14-07:35:56.384162 7f8b62101a80 Options.create_if_missing: 1
+2021/03/14-07:35:56.384162 7f8b62101a80 Options.paranoid_checks: 1
+2021/03/14-07:35:56.384163 7f8b62101a80 Options.env: 0x7f8b62abb080
+2021/03/14-07:35:56.384163 7f8b62101a80 Options.info_log: 0x1dccfa0
+2021/03/14-07:35:56.384164 7f8b62101a80 Options.max_file_opening_threads: 16
+2021/03/14-07:35:56.384165 7f8b62101a80 Options.statistics: (nil)
+2021/03/14-07:35:56.384165 7f8b62101a80 Options.use_fsync: 0
+2021/03/14-07:35:56.384166 7f8b62101a80 Options.max_log_file_size: 0
+2021/03/14-07:35:56.384166 7f8b62101a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:35:56.384167 7f8b62101a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:35:56.384168 7f8b62101a80 Options.keep_log_file_num: 1000
+2021/03/14-07:35:56.384168 7f8b62101a80 Options.recycle_log_file_num: 0
+2021/03/14-07:35:56.384169 7f8b62101a80 Options.allow_fallocate: 1
+2021/03/14-07:35:56.384169 7f8b62101a80 Options.allow_mmap_reads: 0
+2021/03/14-07:35:56.384170 7f8b62101a80 Options.allow_mmap_writes: 0
+2021/03/14-07:35:56.384170 7f8b62101a80 Options.use_direct_reads: 0
+2021/03/14-07:35:56.384171 7f8b62101a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:35:56.384172 7f8b62101a80 Options.create_missing_column_families: 0
+2021/03/14-07:35:56.384172 7f8b62101a80 Options.db_log_dir:
+2021/03/14-07:35:56.384173 7f8b62101a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:35:56.384173 7f8b62101a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:35:56.384174 7f8b62101a80 Options.max_subcompactions: 1
+2021/03/14-07:35:56.384174 7f8b62101a80 Options.max_background_flushes: -1
+2021/03/14-07:35:56.384175 7f8b62101a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:35:56.384176 7f8b62101a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:35:56.384176 7f8b62101a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:35:56.384177 7f8b62101a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:35:56.384177 7f8b62101a80 Options.advise_random_on_open: 1
+2021/03/14-07:35:56.384178 7f8b62101a80 Options.db_write_buffer_size: 0
+2021/03/14-07:35:56.384178 7f8b62101a80 Options.write_buffer_manager: 0x1db4e90
+2021/03/14-07:35:56.384179 7f8b62101a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:35:56.384179 7f8b62101a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:35:56.384180 7f8b62101a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:35:56.384181 7f8b62101a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:35:56.384181 7f8b62101a80 Options.rate_limiter: (nil)
+2021/03/14-07:35:56.384183 7f8b62101a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:35:56.384190 7f8b62101a80 Options.wal_recovery_mode: 2
+2021/03/14-07:35:56.384192 7f8b62101a80 Options.enable_thread_tracking: 0
+2021/03/14-07:35:56.384193 7f8b62101a80 Options.enable_pipelined_write: 0
+2021/03/14-07:35:56.384194 7f8b62101a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:35:56.384195 7f8b62101a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:35:56.384196 7f8b62101a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:35:56.384197 7f8b62101a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:35:56.384197 7f8b62101a80 Options.row_cache: None
+2021/03/14-07:35:56.384198 7f8b62101a80 Options.wal_filter: None
+2021/03/14-07:35:56.384200 7f8b62101a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:35:56.384200 7f8b62101a80 Options.allow_ingest_behind: 0
+2021/03/14-07:35:56.384201 7f8b62101a80 Options.preserve_deletes: 0
+2021/03/14-07:35:56.384202 7f8b62101a80 Options.two_write_queues: 0
+2021/03/14-07:35:56.384203 7f8b62101a80 Options.manual_wal_flush: 0
+2021/03/14-07:35:56.384204 7f8b62101a80 Options.max_background_jobs: 16
+2021/03/14-07:35:56.384205 7f8b62101a80 Options.max_background_compactions: -1
+2021/03/14-07:35:56.384206 7f8b62101a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:35:56.384206 7f8b62101a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:35:56.384207 7f8b62101a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:35:56.384208 7f8b62101a80 Options.max_total_wal_size: 0
+2021/03/14-07:35:56.384209 7f8b62101a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:35:56.384210 7f8b62101a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:35:56.384211 7f8b62101a80 Options.max_open_files: -1
+2021/03/14-07:35:56.384212 7f8b62101a80 Options.bytes_per_sync: 0
+2021/03/14-07:35:56.384212 7f8b62101a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:35:56.384213 7f8b62101a80 Options.compaction_readahead_size: 0
+2021/03/14-07:35:56.384214 7f8b62101a80 Compression algorithms supported:
+2021/03/14-07:35:56.384215 7f8b62101a80 Snappy supported: 1
+2021/03/14-07:35:56.384216 7f8b62101a80 Zlib supported: 1
+2021/03/14-07:35:56.384216 7f8b62101a80 Bzip supported: 1
+2021/03/14-07:35:56.384217 7f8b62101a80 LZ4 supported: 1
+2021/03/14-07:35:56.384218 7f8b62101a80 ZSTDNotFinal supported: 1
+2021/03/14-07:35:56.384223 7f8b62101a80 ZSTD supported: 1
+2021/03/14-07:35:56.384227 7f8b62101a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:35:56.384229 7f8b62101a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:35:56.384332 7f8b62101a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:35:56.384386 7f8b62101a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:35:56.384387 7f8b62101a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:35:56.384388 7f8b62101a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:35:56.384389 7f8b62101a80 Options.compaction_filter: None
+2021/03/14-07:35:56.384389 7f8b62101a80 Options.compaction_filter_factory: None
+2021/03/14-07:35:56.384390 7f8b62101a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:35:56.384391 7f8b62101a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:35:56.384406 7f8b62101a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1dc4820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1da9f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:35:56.384406 7f8b62101a80 Options.write_buffer_size: 134217728
+2021/03/14-07:35:56.384407 7f8b62101a80 Options.max_write_buffer_number: 6
+2021/03/14-07:35:56.384408 7f8b62101a80 Options.compression[0]: NoCompression
+2021/03/14-07:35:56.384408 7f8b62101a80 Options.compression[1]: NoCompression
+2021/03/14-07:35:56.384409 7f8b62101a80 Options.compression[2]: Snappy
+2021/03/14-07:35:56.384410 7f8b62101a80 Options.compression[3]: Snappy
+2021/03/14-07:35:56.384410 7f8b62101a80 Options.compression[4]: Snappy
+2021/03/14-07:35:56.384411 7f8b62101a80 Options.compression[5]: Snappy
+2021/03/14-07:35:56.384411 7f8b62101a80 Options.compression[6]: Snappy
+2021/03/14-07:35:56.384412 7f8b62101a80 Options.bottommost_compression: Disabled
+2021/03/14-07:35:56.384413 7f8b62101a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:35:56.384413 7f8b62101a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:35:56.384414 7f8b62101a80 Options.num_levels: 7
+2021/03/14-07:35:56.384415 7f8b62101a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:35:56.384415 7f8b62101a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:35:56.384416 7f8b62101a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:35:56.384416 7f8b62101a80 Options.compression_opts.level: -1
+2021/03/14-07:35:56.384417 7f8b62101a80 Options.compression_opts.strategy: 0
+2021/03/14-07:35:56.384418 7f8b62101a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:35:56.384418 7f8b62101a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:35:56.384419 7f8b62101a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:35:56.384419 7f8b62101a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:35:56.384420 7f8b62101a80 Options.target_file_size_base: 67108864
+2021/03/14-07:35:56.384421 7f8b62101a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:35:56.384421 7f8b62101a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:35:56.384422 7f8b62101a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:35:56.384422 7f8b62101a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:35:56.384424 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:35:56.384432 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:35:56.384433 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:35:56.384433 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:35:56.384434 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:35:56.384434 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:35:56.384435 7f8b62101a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:35:56.384435 7f8b62101a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:35:56.384436 7f8b62101a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:35:56.384437 7f8b62101a80 Options.arena_block_size: 16777216
+2021/03/14-07:35:56.384437 7f8b62101a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:35:56.384438 7f8b62101a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:35:56.384438 7f8b62101a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:35:56.384439 7f8b62101a80 Options.disable_auto_compactions: 0
+2021/03/14-07:35:56.384440 7f8b62101a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:35:56.384441 7f8b62101a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:35:56.384442 7f8b62101a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:35:56.384442 7f8b62101a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:35:56.384443 7f8b62101a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:35:56.384443 7f8b62101a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:35:56.384444 7f8b62101a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:35:56.384445 7f8b62101a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:35:56.384446 7f8b62101a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:35:56.384446 7f8b62101a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:35:56.384447 7f8b62101a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:35:56.384447 7f8b62101a80 Options.table_properties_collectors:
+2021/03/14-07:35:56.384448 7f8b62101a80 Options.inplace_update_support: 0
+2021/03/14-07:35:56.384448 7f8b62101a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:35:56.384449 7f8b62101a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:35:56.384450 7f8b62101a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:35:56.384450 7f8b62101a80 Options.bloom_locality: 0
+2021/03/14-07:35:56.384451 7f8b62101a80 Options.max_successive_merges: 0
+2021/03/14-07:35:56.384451 7f8b62101a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:35:56.384452 7f8b62101a80 Options.paranoid_file_checks: 0
+2021/03/14-07:35:56.384453 7f8b62101a80 Options.force_consistency_checks: 0
+2021/03/14-07:35:56.384453 7f8b62101a80 Options.report_bg_io_stats: 0
+2021/03/14-07:35:56.384818 7f8b62101a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:35:56.384820 7f8b62101a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:35:56.384971 7f8b62101a80 EVENT_LOG_v1 {"time_micros": 1615703756384959, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:35:56.384977 7f8b62101a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:35:57.109151 7f8b62101a80 EVENT_LOG_v1 {"time_micros": 1615703757109147, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703796490434 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703796490434
new file mode 100644
index 0000000..200879a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703796490434
@@ -0,0 +1,186 @@
+2021/03/14-07:36:35.681561 7fb0c64c7a80 RocksDB version: 5.11.3
+2021/03/14-07:36:35.681626 7fb0c64c7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:36:35.681627 7fb0c64c7a80 Compile date Mar 13 2021
+2021/03/14-07:36:35.681632 7fb0c64c7a80 DB SUMMARY
+2021/03/14-07:36:35.681799 7fb0c64c7a80 CURRENT file: CURRENT
+2021/03/14-07:36:35.681800 7fb0c64c7a80 IDENTITY file: IDENTITY
+2021/03/14-07:36:35.681817 7fb0c64c7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:36:35.681818 7fb0c64c7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:36:35.681819 7fb0c64c7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:36:35.681825 7fb0c64c7a80 Options.error_if_exists: 0
+2021/03/14-07:36:35.681825 7fb0c64c7a80 Options.create_if_missing: 1
+2021/03/14-07:36:35.681826 7fb0c64c7a80 Options.paranoid_checks: 1
+2021/03/14-07:36:35.681827 7fb0c64c7a80 Options.env: 0x7fb0c6e81080
+2021/03/14-07:36:35.681827 7fb0c64c7a80 Options.info_log: 0x1206fa0
+2021/03/14-07:36:35.681828 7fb0c64c7a80 Options.max_file_opening_threads: 16
+2021/03/14-07:36:35.681829 7fb0c64c7a80 Options.statistics: (nil)
+2021/03/14-07:36:35.681830 7fb0c64c7a80 Options.use_fsync: 0
+2021/03/14-07:36:35.681830 7fb0c64c7a80 Options.max_log_file_size: 0
+2021/03/14-07:36:35.681831 7fb0c64c7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:36:35.681832 7fb0c64c7a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:36:35.681832 7fb0c64c7a80 Options.keep_log_file_num: 1000
+2021/03/14-07:36:35.681833 7fb0c64c7a80 Options.recycle_log_file_num: 0
+2021/03/14-07:36:35.681834 7fb0c64c7a80 Options.allow_fallocate: 1
+2021/03/14-07:36:35.681834 7fb0c64c7a80 Options.allow_mmap_reads: 0
+2021/03/14-07:36:35.681835 7fb0c64c7a80 Options.allow_mmap_writes: 0
+2021/03/14-07:36:35.681835 7fb0c64c7a80 Options.use_direct_reads: 0
+2021/03/14-07:36:35.681836 7fb0c64c7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:36:35.681837 7fb0c64c7a80 Options.create_missing_column_families: 0
+2021/03/14-07:36:35.681837 7fb0c64c7a80 Options.db_log_dir:
+2021/03/14-07:36:35.681838 7fb0c64c7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:36:35.681839 7fb0c64c7a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:36:35.681839 7fb0c64c7a80 Options.max_subcompactions: 1
+2021/03/14-07:36:35.681840 7fb0c64c7a80 Options.max_background_flushes: -1
+2021/03/14-07:36:35.681841 7fb0c64c7a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:36:35.681841 7fb0c64c7a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:36:35.681842 7fb0c64c7a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:36:35.681842 7fb0c64c7a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:36:35.681843 7fb0c64c7a80 Options.advise_random_on_open: 1
+2021/03/14-07:36:35.681844 7fb0c64c7a80 Options.db_write_buffer_size: 0
+2021/03/14-07:36:35.681844 7fb0c64c7a80 Options.write_buffer_manager: 0x11eee90
+2021/03/14-07:36:35.681845 7fb0c64c7a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:36:35.681846 7fb0c64c7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:36:35.681846 7fb0c64c7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:36:35.681847 7fb0c64c7a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:36:35.681847 7fb0c64c7a80 Options.rate_limiter: (nil)
+2021/03/14-07:36:35.681849 7fb0c64c7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:36:35.681857 7fb0c64c7a80 Options.wal_recovery_mode: 2
+2021/03/14-07:36:35.681858 7fb0c64c7a80 Options.enable_thread_tracking: 0
+2021/03/14-07:36:35.681859 7fb0c64c7a80 Options.enable_pipelined_write: 0
+2021/03/14-07:36:35.681859 7fb0c64c7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:36:35.681860 7fb0c64c7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:36:35.681860 7fb0c64c7a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:36:35.681861 7fb0c64c7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:36:35.681862 7fb0c64c7a80 Options.row_cache: None
+2021/03/14-07:36:35.681862 7fb0c64c7a80 Options.wal_filter: None
+2021/03/14-07:36:35.681863 7fb0c64c7a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:36:35.681864 7fb0c64c7a80 Options.allow_ingest_behind: 0
+2021/03/14-07:36:35.681864 7fb0c64c7a80 Options.preserve_deletes: 0
+2021/03/14-07:36:35.681865 7fb0c64c7a80 Options.two_write_queues: 0
+2021/03/14-07:36:35.681866 7fb0c64c7a80 Options.manual_wal_flush: 0
+2021/03/14-07:36:35.681867 7fb0c64c7a80 Options.max_background_jobs: 16
+2021/03/14-07:36:35.681868 7fb0c64c7a80 Options.max_background_compactions: -1
+2021/03/14-07:36:35.681868 7fb0c64c7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:36:35.681869 7fb0c64c7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:36:35.681869 7fb0c64c7a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:36:35.681870 7fb0c64c7a80 Options.max_total_wal_size: 0
+2021/03/14-07:36:35.681871 7fb0c64c7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:36:35.681871 7fb0c64c7a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:36:35.681872 7fb0c64c7a80 Options.max_open_files: -1
+2021/03/14-07:36:35.681873 7fb0c64c7a80 Options.bytes_per_sync: 0
+2021/03/14-07:36:35.681873 7fb0c64c7a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:36:35.681874 7fb0c64c7a80 Options.compaction_readahead_size: 0
+2021/03/14-07:36:35.681874 7fb0c64c7a80 Compression algorithms supported:
+2021/03/14-07:36:35.681875 7fb0c64c7a80 Snappy supported: 1
+2021/03/14-07:36:35.681876 7fb0c64c7a80 Zlib supported: 1
+2021/03/14-07:36:35.681876 7fb0c64c7a80 Bzip supported: 1
+2021/03/14-07:36:35.681877 7fb0c64c7a80 LZ4 supported: 1
+2021/03/14-07:36:35.681878 7fb0c64c7a80 ZSTDNotFinal supported: 1
+2021/03/14-07:36:35.681882 7fb0c64c7a80 ZSTD supported: 1
+2021/03/14-07:36:35.681885 7fb0c64c7a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:36:35.681887 7fb0c64c7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:36:35.681986 7fb0c64c7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:36:35.682042 7fb0c64c7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:36:35.682044 7fb0c64c7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:36:35.682045 7fb0c64c7a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:36:35.682046 7fb0c64c7a80 Options.compaction_filter: None
+2021/03/14-07:36:35.682046 7fb0c64c7a80 Options.compaction_filter_factory: None
+2021/03/14-07:36:35.682047 7fb0c64c7a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:36:35.682048 7fb0c64c7a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:36:35.682064 7fb0c64c7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x11fe820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x11e3f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:36:35.682066 7fb0c64c7a80 Options.write_buffer_size: 134217728
+2021/03/14-07:36:35.682066 7fb0c64c7a80 Options.max_write_buffer_number: 6
+2021/03/14-07:36:35.682067 7fb0c64c7a80 Options.compression[0]: NoCompression
+2021/03/14-07:36:35.682068 7fb0c64c7a80 Options.compression[1]: NoCompression
+2021/03/14-07:36:35.682069 7fb0c64c7a80 Options.compression[2]: Snappy
+2021/03/14-07:36:35.682069 7fb0c64c7a80 Options.compression[3]: Snappy
+2021/03/14-07:36:35.682070 7fb0c64c7a80 Options.compression[4]: Snappy
+2021/03/14-07:36:35.682070 7fb0c64c7a80 Options.compression[5]: Snappy
+2021/03/14-07:36:35.682071 7fb0c64c7a80 Options.compression[6]: Snappy
+2021/03/14-07:36:35.682072 7fb0c64c7a80 Options.bottommost_compression: Disabled
+2021/03/14-07:36:35.682073 7fb0c64c7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:36:35.682073 7fb0c64c7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:36:35.682074 7fb0c64c7a80 Options.num_levels: 7
+2021/03/14-07:36:35.682075 7fb0c64c7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:36:35.682075 7fb0c64c7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:36:35.682076 7fb0c64c7a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:36:35.682077 7fb0c64c7a80 Options.compression_opts.level: -1
+2021/03/14-07:36:35.682077 7fb0c64c7a80 Options.compression_opts.strategy: 0
+2021/03/14-07:36:35.682078 7fb0c64c7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:36:35.682078 7fb0c64c7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:36:35.682079 7fb0c64c7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:36:35.682080 7fb0c64c7a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:36:35.682081 7fb0c64c7a80 Options.target_file_size_base: 67108864
+2021/03/14-07:36:35.682081 7fb0c64c7a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:36:35.682082 7fb0c64c7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:36:35.682083 7fb0c64c7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:36:35.682083 7fb0c64c7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:36:35.682085 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:36:35.682093 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:36:35.682094 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:36:35.682094 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:36:35.682095 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:36:35.682096 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:36:35.682096 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:36:35.682097 7fb0c64c7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:36:35.682098 7fb0c64c7a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:36:35.682098 7fb0c64c7a80 Options.arena_block_size: 16777216
+2021/03/14-07:36:35.682099 7fb0c64c7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:36:35.682100 7fb0c64c7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:36:35.682100 7fb0c64c7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:36:35.682101 7fb0c64c7a80 Options.disable_auto_compactions: 0
+2021/03/14-07:36:35.682103 7fb0c64c7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:36:35.682104 7fb0c64c7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:36:35.682104 7fb0c64c7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:36:35.682105 7fb0c64c7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:36:35.682106 7fb0c64c7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:36:35.682106 7fb0c64c7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:36:35.682107 7fb0c64c7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:36:35.682108 7fb0c64c7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:36:35.682109 7fb0c64c7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:36:35.682110 7fb0c64c7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:36:35.682110 7fb0c64c7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:36:35.682111 7fb0c64c7a80 Options.table_properties_collectors:
+2021/03/14-07:36:35.682112 7fb0c64c7a80 Options.inplace_update_support: 0
+2021/03/14-07:36:35.682112 7fb0c64c7a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:36:35.682113 7fb0c64c7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:36:35.682114 7fb0c64c7a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:36:35.682115 7fb0c64c7a80 Options.bloom_locality: 0
+2021/03/14-07:36:35.682115 7fb0c64c7a80 Options.max_successive_merges: 0
+2021/03/14-07:36:35.682116 7fb0c64c7a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:36:35.682117 7fb0c64c7a80 Options.paranoid_file_checks: 0
+2021/03/14-07:36:35.682117 7fb0c64c7a80 Options.force_consistency_checks: 0
+2021/03/14-07:36:35.682118 7fb0c64c7a80 Options.report_bg_io_stats: 0
+2021/03/14-07:36:35.682540 7fb0c64c7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:36:35.682543 7fb0c64c7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:36:35.682710 7fb0c64c7a80 EVENT_LOG_v1 {"time_micros": 1615703795682699, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:36:35.682716 7fb0c64c7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:36:36.478044 7fb0c64c7a80 EVENT_LOG_v1 {"time_micros": 1615703796478040, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703797246366 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703797246366
new file mode 100644
index 0000000..38e6c2d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703797246366
@@ -0,0 +1,186 @@
+2021/03/14-07:36:36.490842 7fb0c64c7a80 RocksDB version: 5.11.3
+2021/03/14-07:36:36.490897 7fb0c64c7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:36:36.490898 7fb0c64c7a80 Compile date Mar 13 2021
+2021/03/14-07:36:36.490902 7fb0c64c7a80 DB SUMMARY
+2021/03/14-07:36:36.491051 7fb0c64c7a80 CURRENT file: CURRENT
+2021/03/14-07:36:36.491052 7fb0c64c7a80 IDENTITY file: IDENTITY
+2021/03/14-07:36:36.491067 7fb0c64c7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:36:36.491068 7fb0c64c7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:36:36.491069 7fb0c64c7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:36:36.491074 7fb0c64c7a80 Options.error_if_exists: 0
+2021/03/14-07:36:36.491075 7fb0c64c7a80 Options.create_if_missing: 1
+2021/03/14-07:36:36.491075 7fb0c64c7a80 Options.paranoid_checks: 1
+2021/03/14-07:36:36.491076 7fb0c64c7a80 Options.env: 0x7fb0c6e81080
+2021/03/14-07:36:36.491076 7fb0c64c7a80 Options.info_log: 0x1206fa0
+2021/03/14-07:36:36.491077 7fb0c64c7a80 Options.max_file_opening_threads: 16
+2021/03/14-07:36:36.491078 7fb0c64c7a80 Options.statistics: (nil)
+2021/03/14-07:36:36.491078 7fb0c64c7a80 Options.use_fsync: 0
+2021/03/14-07:36:36.491079 7fb0c64c7a80 Options.max_log_file_size: 0
+2021/03/14-07:36:36.491079 7fb0c64c7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:36:36.491080 7fb0c64c7a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:36:36.491081 7fb0c64c7a80 Options.keep_log_file_num: 1000
+2021/03/14-07:36:36.491081 7fb0c64c7a80 Options.recycle_log_file_num: 0
+2021/03/14-07:36:36.491082 7fb0c64c7a80 Options.allow_fallocate: 1
+2021/03/14-07:36:36.491082 7fb0c64c7a80 Options.allow_mmap_reads: 0
+2021/03/14-07:36:36.491083 7fb0c64c7a80 Options.allow_mmap_writes: 0
+2021/03/14-07:36:36.491083 7fb0c64c7a80 Options.use_direct_reads: 0
+2021/03/14-07:36:36.491084 7fb0c64c7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:36:36.491085 7fb0c64c7a80 Options.create_missing_column_families: 0
+2021/03/14-07:36:36.491085 7fb0c64c7a80 Options.db_log_dir:
+2021/03/14-07:36:36.491086 7fb0c64c7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:36:36.491086 7fb0c64c7a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:36:36.491087 7fb0c64c7a80 Options.max_subcompactions: 1
+2021/03/14-07:36:36.491087 7fb0c64c7a80 Options.max_background_flushes: -1
+2021/03/14-07:36:36.491088 7fb0c64c7a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:36:36.491089 7fb0c64c7a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:36:36.491089 7fb0c64c7a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:36:36.491090 7fb0c64c7a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:36:36.491090 7fb0c64c7a80 Options.advise_random_on_open: 1
+2021/03/14-07:36:36.491091 7fb0c64c7a80 Options.db_write_buffer_size: 0
+2021/03/14-07:36:36.491091 7fb0c64c7a80 Options.write_buffer_manager: 0x11eee90
+2021/03/14-07:36:36.491092 7fb0c64c7a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:36:36.491093 7fb0c64c7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:36:36.491093 7fb0c64c7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:36:36.491094 7fb0c64c7a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:36:36.491094 7fb0c64c7a80 Options.rate_limiter: (nil)
+2021/03/14-07:36:36.491095 7fb0c64c7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:36:36.491103 7fb0c64c7a80 Options.wal_recovery_mode: 2
+2021/03/14-07:36:36.491104 7fb0c64c7a80 Options.enable_thread_tracking: 0
+2021/03/14-07:36:36.491104 7fb0c64c7a80 Options.enable_pipelined_write: 0
+2021/03/14-07:36:36.491105 7fb0c64c7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:36:36.491105 7fb0c64c7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:36:36.491106 7fb0c64c7a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:36:36.491106 7fb0c64c7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:36:36.491107 7fb0c64c7a80 Options.row_cache: None
+2021/03/14-07:36:36.491108 7fb0c64c7a80 Options.wal_filter: None
+2021/03/14-07:36:36.491108 7fb0c64c7a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:36:36.491109 7fb0c64c7a80 Options.allow_ingest_behind: 0
+2021/03/14-07:36:36.491109 7fb0c64c7a80 Options.preserve_deletes: 0
+2021/03/14-07:36:36.491110 7fb0c64c7a80 Options.two_write_queues: 0
+2021/03/14-07:36:36.491110 7fb0c64c7a80 Options.manual_wal_flush: 0
+2021/03/14-07:36:36.491111 7fb0c64c7a80 Options.max_background_jobs: 16
+2021/03/14-07:36:36.491112 7fb0c64c7a80 Options.max_background_compactions: -1
+2021/03/14-07:36:36.491113 7fb0c64c7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:36:36.491113 7fb0c64c7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:36:36.491114 7fb0c64c7a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:36:36.491114 7fb0c64c7a80 Options.max_total_wal_size: 0
+2021/03/14-07:36:36.491115 7fb0c64c7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:36:36.491115 7fb0c64c7a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:36:36.491116 7fb0c64c7a80 Options.max_open_files: -1
+2021/03/14-07:36:36.491117 7fb0c64c7a80 Options.bytes_per_sync: 0
+2021/03/14-07:36:36.491117 7fb0c64c7a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:36:36.491118 7fb0c64c7a80 Options.compaction_readahead_size: 0
+2021/03/14-07:36:36.491118 7fb0c64c7a80 Compression algorithms supported:
+2021/03/14-07:36:36.491119 7fb0c64c7a80 Snappy supported: 1
+2021/03/14-07:36:36.491119 7fb0c64c7a80 Zlib supported: 1
+2021/03/14-07:36:36.491120 7fb0c64c7a80 Bzip supported: 1
+2021/03/14-07:36:36.491120 7fb0c64c7a80 LZ4 supported: 1
+2021/03/14-07:36:36.491121 7fb0c64c7a80 ZSTDNotFinal supported: 1
+2021/03/14-07:36:36.491125 7fb0c64c7a80 ZSTD supported: 1
+2021/03/14-07:36:36.491128 7fb0c64c7a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:36:36.491129 7fb0c64c7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:36:36.491218 7fb0c64c7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:36:36.491273 7fb0c64c7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:36:36.491275 7fb0c64c7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:36:36.491276 7fb0c64c7a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:36:36.491277 7fb0c64c7a80 Options.compaction_filter: None
+2021/03/14-07:36:36.491277 7fb0c64c7a80 Options.compaction_filter_factory: None
+2021/03/14-07:36:36.491278 7fb0c64c7a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:36:36.491279 7fb0c64c7a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:36:36.491294 7fb0c64c7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x11fe820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x11e3f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:36:36.491295 7fb0c64c7a80 Options.write_buffer_size: 134217728
+2021/03/14-07:36:36.491295 7fb0c64c7a80 Options.max_write_buffer_number: 6
+2021/03/14-07:36:36.491296 7fb0c64c7a80 Options.compression[0]: NoCompression
+2021/03/14-07:36:36.491297 7fb0c64c7a80 Options.compression[1]: NoCompression
+2021/03/14-07:36:36.491297 7fb0c64c7a80 Options.compression[2]: Snappy
+2021/03/14-07:36:36.491298 7fb0c64c7a80 Options.compression[3]: Snappy
+2021/03/14-07:36:36.491299 7fb0c64c7a80 Options.compression[4]: Snappy
+2021/03/14-07:36:36.491299 7fb0c64c7a80 Options.compression[5]: Snappy
+2021/03/14-07:36:36.491300 7fb0c64c7a80 Options.compression[6]: Snappy
+2021/03/14-07:36:36.491300 7fb0c64c7a80 Options.bottommost_compression: Disabled
+2021/03/14-07:36:36.491301 7fb0c64c7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:36:36.491302 7fb0c64c7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:36:36.491302 7fb0c64c7a80 Options.num_levels: 7
+2021/03/14-07:36:36.491303 7fb0c64c7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:36:36.491303 7fb0c64c7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:36:36.491304 7fb0c64c7a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:36:36.491305 7fb0c64c7a80 Options.compression_opts.level: -1
+2021/03/14-07:36:36.491305 7fb0c64c7a80 Options.compression_opts.strategy: 0
+2021/03/14-07:36:36.491306 7fb0c64c7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:36:36.491306 7fb0c64c7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:36:36.491307 7fb0c64c7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:36:36.491307 7fb0c64c7a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:36:36.491308 7fb0c64c7a80 Options.target_file_size_base: 67108864
+2021/03/14-07:36:36.491308 7fb0c64c7a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:36:36.491309 7fb0c64c7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:36:36.491310 7fb0c64c7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:36:36.491310 7fb0c64c7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:36:36.491312 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:36:36.491320 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:36:36.491320 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:36:36.491321 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:36:36.491322 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:36:36.491322 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:36:36.491323 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:36:36.491323 7fb0c64c7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:36:36.491324 7fb0c64c7a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:36:36.491324 7fb0c64c7a80 Options.arena_block_size: 16777216
+2021/03/14-07:36:36.491325 7fb0c64c7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:36:36.491325 7fb0c64c7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:36:36.491326 7fb0c64c7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:36:36.491327 7fb0c64c7a80 Options.disable_auto_compactions: 0
+2021/03/14-07:36:36.491328 7fb0c64c7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:36:36.491329 7fb0c64c7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:36:36.491330 7fb0c64c7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:36:36.491330 7fb0c64c7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:36:36.491331 7fb0c64c7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:36:36.491331 7fb0c64c7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:36:36.491332 7fb0c64c7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:36:36.491333 7fb0c64c7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:36:36.491334 7fb0c64c7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:36:36.491334 7fb0c64c7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:36:36.491335 7fb0c64c7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:36:36.491336 7fb0c64c7a80 Options.table_properties_collectors:
+2021/03/14-07:36:36.491336 7fb0c64c7a80 Options.inplace_update_support: 0
+2021/03/14-07:36:36.491337 7fb0c64c7a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:36:36.491337 7fb0c64c7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:36:36.491338 7fb0c64c7a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:36:36.491339 7fb0c64c7a80 Options.bloom_locality: 0
+2021/03/14-07:36:36.491339 7fb0c64c7a80 Options.max_successive_merges: 0
+2021/03/14-07:36:36.491340 7fb0c64c7a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:36:36.491340 7fb0c64c7a80 Options.paranoid_file_checks: 0
+2021/03/14-07:36:36.491341 7fb0c64c7a80 Options.force_consistency_checks: 0
+2021/03/14-07:36:36.491342 7fb0c64c7a80 Options.report_bg_io_stats: 0
+2021/03/14-07:36:36.491708 7fb0c64c7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:36:36.491710 7fb0c64c7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:36:36.491862 7fb0c64c7a80 EVENT_LOG_v1 {"time_micros": 1615703796491852, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:36:36.491867 7fb0c64c7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:36:37.233777 7fb0c64c7a80 EVENT_LOG_v1 {"time_micros": 1615703797233773, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703798005934 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703798005934
new file mode 100644
index 0000000..f13522f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703798005934
@@ -0,0 +1,186 @@
+2021/03/14-07:36:37.246768 7fb0c64c7a80 RocksDB version: 5.11.3
+2021/03/14-07:36:37.246821 7fb0c64c7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:36:37.246823 7fb0c64c7a80 Compile date Mar 13 2021
+2021/03/14-07:36:37.246827 7fb0c64c7a80 DB SUMMARY
+2021/03/14-07:36:37.246975 7fb0c64c7a80 CURRENT file: CURRENT
+2021/03/14-07:36:37.246976 7fb0c64c7a80 IDENTITY file: IDENTITY
+2021/03/14-07:36:37.246991 7fb0c64c7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:36:37.246992 7fb0c64c7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:36:37.246993 7fb0c64c7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:36:37.246998 7fb0c64c7a80 Options.error_if_exists: 0
+2021/03/14-07:36:37.246999 7fb0c64c7a80 Options.create_if_missing: 1
+2021/03/14-07:36:37.247000 7fb0c64c7a80 Options.paranoid_checks: 1
+2021/03/14-07:36:37.247000 7fb0c64c7a80 Options.env: 0x7fb0c6e81080
+2021/03/14-07:36:37.247001 7fb0c64c7a80 Options.info_log: 0x1206fa0
+2021/03/14-07:36:37.247001 7fb0c64c7a80 Options.max_file_opening_threads: 16
+2021/03/14-07:36:37.247002 7fb0c64c7a80 Options.statistics: (nil)
+2021/03/14-07:36:37.247003 7fb0c64c7a80 Options.use_fsync: 0
+2021/03/14-07:36:37.247003 7fb0c64c7a80 Options.max_log_file_size: 0
+2021/03/14-07:36:37.247004 7fb0c64c7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:36:37.247005 7fb0c64c7a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:36:37.247005 7fb0c64c7a80 Options.keep_log_file_num: 1000
+2021/03/14-07:36:37.247006 7fb0c64c7a80 Options.recycle_log_file_num: 0
+2021/03/14-07:36:37.247006 7fb0c64c7a80 Options.allow_fallocate: 1
+2021/03/14-07:36:37.247007 7fb0c64c7a80 Options.allow_mmap_reads: 0
+2021/03/14-07:36:37.247007 7fb0c64c7a80 Options.allow_mmap_writes: 0
+2021/03/14-07:36:37.247008 7fb0c64c7a80 Options.use_direct_reads: 0
+2021/03/14-07:36:37.247008 7fb0c64c7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:36:37.247009 7fb0c64c7a80 Options.create_missing_column_families: 0
+2021/03/14-07:36:37.247010 7fb0c64c7a80 Options.db_log_dir:
+2021/03/14-07:36:37.247010 7fb0c64c7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:36:37.247011 7fb0c64c7a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:36:37.247011 7fb0c64c7a80 Options.max_subcompactions: 1
+2021/03/14-07:36:37.247012 7fb0c64c7a80 Options.max_background_flushes: -1
+2021/03/14-07:36:37.247012 7fb0c64c7a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:36:37.247013 7fb0c64c7a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:36:37.247014 7fb0c64c7a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:36:37.247014 7fb0c64c7a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:36:37.247015 7fb0c64c7a80 Options.advise_random_on_open: 1
+2021/03/14-07:36:37.247015 7fb0c64c7a80 Options.db_write_buffer_size: 0
+2021/03/14-07:36:37.247016 7fb0c64c7a80 Options.write_buffer_manager: 0x11eee90
+2021/03/14-07:36:37.247016 7fb0c64c7a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:36:37.247017 7fb0c64c7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:36:37.247017 7fb0c64c7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:36:37.247018 7fb0c64c7a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:36:37.247019 7fb0c64c7a80 Options.rate_limiter: (nil)
+2021/03/14-07:36:37.247020 7fb0c64c7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:36:37.247027 7fb0c64c7a80 Options.wal_recovery_mode: 2
+2021/03/14-07:36:37.247028 7fb0c64c7a80 Options.enable_thread_tracking: 0
+2021/03/14-07:36:37.247028 7fb0c64c7a80 Options.enable_pipelined_write: 0
+2021/03/14-07:36:37.247029 7fb0c64c7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:36:37.247029 7fb0c64c7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:36:37.247030 7fb0c64c7a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:36:37.247030 7fb0c64c7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:36:37.247031 7fb0c64c7a80 Options.row_cache: None
+2021/03/14-07:36:37.247032 7fb0c64c7a80 Options.wal_filter: None
+2021/03/14-07:36:37.247032 7fb0c64c7a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:36:37.247033 7fb0c64c7a80 Options.allow_ingest_behind: 0
+2021/03/14-07:36:37.247033 7fb0c64c7a80 Options.preserve_deletes: 0
+2021/03/14-07:36:37.247034 7fb0c64c7a80 Options.two_write_queues: 0
+2021/03/14-07:36:37.247034 7fb0c64c7a80 Options.manual_wal_flush: 0
+2021/03/14-07:36:37.247036 7fb0c64c7a80 Options.max_background_jobs: 16
+2021/03/14-07:36:37.247036 7fb0c64c7a80 Options.max_background_compactions: -1
+2021/03/14-07:36:37.247037 7fb0c64c7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:36:37.247037 7fb0c64c7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:36:37.247038 7fb0c64c7a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:36:37.247038 7fb0c64c7a80 Options.max_total_wal_size: 0
+2021/03/14-07:36:37.247039 7fb0c64c7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:36:37.247040 7fb0c64c7a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:36:37.247040 7fb0c64c7a80 Options.max_open_files: -1
+2021/03/14-07:36:37.247041 7fb0c64c7a80 Options.bytes_per_sync: 0
+2021/03/14-07:36:37.247041 7fb0c64c7a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:36:37.247042 7fb0c64c7a80 Options.compaction_readahead_size: 0
+2021/03/14-07:36:37.247042 7fb0c64c7a80 Compression algorithms supported:
+2021/03/14-07:36:37.247043 7fb0c64c7a80 Snappy supported: 1
+2021/03/14-07:36:37.247044 7fb0c64c7a80 Zlib supported: 1
+2021/03/14-07:36:37.247044 7fb0c64c7a80 Bzip supported: 1
+2021/03/14-07:36:37.247045 7fb0c64c7a80 LZ4 supported: 1
+2021/03/14-07:36:37.247045 7fb0c64c7a80 ZSTDNotFinal supported: 1
+2021/03/14-07:36:37.247049 7fb0c64c7a80 ZSTD supported: 1
+2021/03/14-07:36:37.247052 7fb0c64c7a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:36:37.247053 7fb0c64c7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:36:37.247141 7fb0c64c7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:36:37.247191 7fb0c64c7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:36:37.247193 7fb0c64c7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:36:37.247193 7fb0c64c7a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:36:37.247194 7fb0c64c7a80 Options.compaction_filter: None
+2021/03/14-07:36:37.247194 7fb0c64c7a80 Options.compaction_filter_factory: None
+2021/03/14-07:36:37.247195 7fb0c64c7a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:36:37.247196 7fb0c64c7a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:36:37.247211 7fb0c64c7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x11fe820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x11e3f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:36:37.247212 7fb0c64c7a80 Options.write_buffer_size: 134217728
+2021/03/14-07:36:37.247212 7fb0c64c7a80 Options.max_write_buffer_number: 6
+2021/03/14-07:36:37.247213 7fb0c64c7a80 Options.compression[0]: NoCompression
+2021/03/14-07:36:37.247214 7fb0c64c7a80 Options.compression[1]: NoCompression
+2021/03/14-07:36:37.247214 7fb0c64c7a80 Options.compression[2]: Snappy
+2021/03/14-07:36:37.247215 7fb0c64c7a80 Options.compression[3]: Snappy
+2021/03/14-07:36:37.247215 7fb0c64c7a80 Options.compression[4]: Snappy
+2021/03/14-07:36:37.247216 7fb0c64c7a80 Options.compression[5]: Snappy
+2021/03/14-07:36:37.247216 7fb0c64c7a80 Options.compression[6]: Snappy
+2021/03/14-07:36:37.247217 7fb0c64c7a80 Options.bottommost_compression: Disabled
+2021/03/14-07:36:37.247218 7fb0c64c7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:36:37.247218 7fb0c64c7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:36:37.247219 7fb0c64c7a80 Options.num_levels: 7
+2021/03/14-07:36:37.247220 7fb0c64c7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:36:37.247220 7fb0c64c7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:36:37.247221 7fb0c64c7a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:36:37.247221 7fb0c64c7a80 Options.compression_opts.level: -1
+2021/03/14-07:36:37.247222 7fb0c64c7a80 Options.compression_opts.strategy: 0
+2021/03/14-07:36:37.247223 7fb0c64c7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:36:37.247223 7fb0c64c7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:36:37.247224 7fb0c64c7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:36:37.247224 7fb0c64c7a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:36:37.247225 7fb0c64c7a80 Options.target_file_size_base: 67108864
+2021/03/14-07:36:37.247226 7fb0c64c7a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:36:37.247226 7fb0c64c7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:36:37.247227 7fb0c64c7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:36:37.247228 7fb0c64c7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:36:37.247229 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:36:37.247237 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:36:37.247242 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:36:37.247243 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:36:37.247244 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:36:37.247244 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:36:37.247245 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:36:37.247245 7fb0c64c7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:36:37.247246 7fb0c64c7a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:36:37.247246 7fb0c64c7a80 Options.arena_block_size: 16777216
+2021/03/14-07:36:37.247247 7fb0c64c7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:36:37.247248 7fb0c64c7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:36:37.247248 7fb0c64c7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:36:37.247249 7fb0c64c7a80 Options.disable_auto_compactions: 0
+2021/03/14-07:36:37.247250 7fb0c64c7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:36:37.247251 7fb0c64c7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:36:37.247252 7fb0c64c7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:36:37.247252 7fb0c64c7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:36:37.247253 7fb0c64c7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:36:37.247253 7fb0c64c7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:36:37.247254 7fb0c64c7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:36:37.247255 7fb0c64c7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:36:37.247256 7fb0c64c7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:36:37.247257 7fb0c64c7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:36:37.247257 7fb0c64c7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:36:37.247258 7fb0c64c7a80 Options.table_properties_collectors:
+2021/03/14-07:36:37.247259 7fb0c64c7a80 Options.inplace_update_support: 0
+2021/03/14-07:36:37.247259 7fb0c64c7a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:36:37.247260 7fb0c64c7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:36:37.247261 7fb0c64c7a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:36:37.247261 7fb0c64c7a80 Options.bloom_locality: 0
+2021/03/14-07:36:37.247262 7fb0c64c7a80 Options.max_successive_merges: 0
+2021/03/14-07:36:37.247262 7fb0c64c7a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:36:37.247263 7fb0c64c7a80 Options.paranoid_file_checks: 0
+2021/03/14-07:36:37.247264 7fb0c64c7a80 Options.force_consistency_checks: 0
+2021/03/14-07:36:37.247264 7fb0c64c7a80 Options.report_bg_io_stats: 0
+2021/03/14-07:36:37.247642 7fb0c64c7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:36:37.247645 7fb0c64c7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:36:37.247796 7fb0c64c7a80 EVENT_LOG_v1 {"time_micros": 1615703797247786, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:36:37.247801 7fb0c64c7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:36:37.993208 7fb0c64c7a80 EVENT_LOG_v1 {"time_micros": 1615703797993205, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703934676551 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703934676551
new file mode 100644
index 0000000..0fa6da7
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703934676551
@@ -0,0 +1,186 @@
+2021/03/14-07:36:38.006362 7fb0c64c7a80 RocksDB version: 5.11.3
+2021/03/14-07:36:38.006419 7fb0c64c7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:36:38.006420 7fb0c64c7a80 Compile date Mar 13 2021
+2021/03/14-07:36:38.006425 7fb0c64c7a80 DB SUMMARY
+2021/03/14-07:36:38.006576 7fb0c64c7a80 CURRENT file: CURRENT
+2021/03/14-07:36:38.006577 7fb0c64c7a80 IDENTITY file: IDENTITY
+2021/03/14-07:36:38.006592 7fb0c64c7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:36:38.006593 7fb0c64c7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:36:38.006594 7fb0c64c7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:36:38.006599 7fb0c64c7a80 Options.error_if_exists: 0
+2021/03/14-07:36:38.006600 7fb0c64c7a80 Options.create_if_missing: 1
+2021/03/14-07:36:38.006600 7fb0c64c7a80 Options.paranoid_checks: 1
+2021/03/14-07:36:38.006601 7fb0c64c7a80 Options.env: 0x7fb0c6e81080
+2021/03/14-07:36:38.006602 7fb0c64c7a80 Options.info_log: 0x1206fa0
+2021/03/14-07:36:38.006602 7fb0c64c7a80 Options.max_file_opening_threads: 16
+2021/03/14-07:36:38.006603 7fb0c64c7a80 Options.statistics: (nil)
+2021/03/14-07:36:38.006604 7fb0c64c7a80 Options.use_fsync: 0
+2021/03/14-07:36:38.006604 7fb0c64c7a80 Options.max_log_file_size: 0
+2021/03/14-07:36:38.006605 7fb0c64c7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:36:38.006605 7fb0c64c7a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:36:38.006606 7fb0c64c7a80 Options.keep_log_file_num: 1000
+2021/03/14-07:36:38.006607 7fb0c64c7a80 Options.recycle_log_file_num: 0
+2021/03/14-07:36:38.006607 7fb0c64c7a80 Options.allow_fallocate: 1
+2021/03/14-07:36:38.006608 7fb0c64c7a80 Options.allow_mmap_reads: 0
+2021/03/14-07:36:38.006608 7fb0c64c7a80 Options.allow_mmap_writes: 0
+2021/03/14-07:36:38.006609 7fb0c64c7a80 Options.use_direct_reads: 0
+2021/03/14-07:36:38.006610 7fb0c64c7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:36:38.006610 7fb0c64c7a80 Options.create_missing_column_families: 0
+2021/03/14-07:36:38.006611 7fb0c64c7a80 Options.db_log_dir:
+2021/03/14-07:36:38.006611 7fb0c64c7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:36:38.006612 7fb0c64c7a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:36:38.006612 7fb0c64c7a80 Options.max_subcompactions: 1
+2021/03/14-07:36:38.006613 7fb0c64c7a80 Options.max_background_flushes: -1
+2021/03/14-07:36:38.006614 7fb0c64c7a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:36:38.006614 7fb0c64c7a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:36:38.006615 7fb0c64c7a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:36:38.006615 7fb0c64c7a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:36:38.006616 7fb0c64c7a80 Options.advise_random_on_open: 1
+2021/03/14-07:36:38.006617 7fb0c64c7a80 Options.db_write_buffer_size: 0
+2021/03/14-07:36:38.006617 7fb0c64c7a80 Options.write_buffer_manager: 0x11eee90
+2021/03/14-07:36:38.006618 7fb0c64c7a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:36:38.006618 7fb0c64c7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:36:38.006619 7fb0c64c7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:36:38.006619 7fb0c64c7a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:36:38.006620 7fb0c64c7a80 Options.rate_limiter: (nil)
+2021/03/14-07:36:38.006621 7fb0c64c7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:36:38.006629 7fb0c64c7a80 Options.wal_recovery_mode: 2
+2021/03/14-07:36:38.006629 7fb0c64c7a80 Options.enable_thread_tracking: 0
+2021/03/14-07:36:38.006630 7fb0c64c7a80 Options.enable_pipelined_write: 0
+2021/03/14-07:36:38.006631 7fb0c64c7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:36:38.006631 7fb0c64c7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:36:38.006632 7fb0c64c7a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:36:38.006632 7fb0c64c7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:36:38.006633 7fb0c64c7a80 Options.row_cache: None
+2021/03/14-07:36:38.006633 7fb0c64c7a80 Options.wal_filter: None
+2021/03/14-07:36:38.006634 7fb0c64c7a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:36:38.006635 7fb0c64c7a80 Options.allow_ingest_behind: 0
+2021/03/14-07:36:38.006635 7fb0c64c7a80 Options.preserve_deletes: 0
+2021/03/14-07:36:38.006636 7fb0c64c7a80 Options.two_write_queues: 0
+2021/03/14-07:36:38.006636 7fb0c64c7a80 Options.manual_wal_flush: 0
+2021/03/14-07:36:38.006637 7fb0c64c7a80 Options.max_background_jobs: 16
+2021/03/14-07:36:38.006638 7fb0c64c7a80 Options.max_background_compactions: -1
+2021/03/14-07:36:38.006639 7fb0c64c7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:36:38.006639 7fb0c64c7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:36:38.006640 7fb0c64c7a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:36:38.006640 7fb0c64c7a80 Options.max_total_wal_size: 0
+2021/03/14-07:36:38.006641 7fb0c64c7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:36:38.006641 7fb0c64c7a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:36:38.006642 7fb0c64c7a80 Options.max_open_files: -1
+2021/03/14-07:36:38.006643 7fb0c64c7a80 Options.bytes_per_sync: 0
+2021/03/14-07:36:38.006643 7fb0c64c7a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:36:38.006644 7fb0c64c7a80 Options.compaction_readahead_size: 0
+2021/03/14-07:36:38.006644 7fb0c64c7a80 Compression algorithms supported:
+2021/03/14-07:36:38.006645 7fb0c64c7a80 Snappy supported: 1
+2021/03/14-07:36:38.006645 7fb0c64c7a80 Zlib supported: 1
+2021/03/14-07:36:38.006646 7fb0c64c7a80 Bzip supported: 1
+2021/03/14-07:36:38.006647 7fb0c64c7a80 LZ4 supported: 1
+2021/03/14-07:36:38.006647 7fb0c64c7a80 ZSTDNotFinal supported: 1
+2021/03/14-07:36:38.006651 7fb0c64c7a80 ZSTD supported: 1
+2021/03/14-07:36:38.006655 7fb0c64c7a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:36:38.006656 7fb0c64c7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:36:38.006744 7fb0c64c7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:36:38.006795 7fb0c64c7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:36:38.006797 7fb0c64c7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:36:38.006798 7fb0c64c7a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:36:38.006799 7fb0c64c7a80 Options.compaction_filter: None
+2021/03/14-07:36:38.006799 7fb0c64c7a80 Options.compaction_filter_factory: None
+2021/03/14-07:36:38.006800 7fb0c64c7a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:36:38.006801 7fb0c64c7a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:36:38.006816 7fb0c64c7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x11fe820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x11e3f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:36:38.006817 7fb0c64c7a80 Options.write_buffer_size: 134217728
+2021/03/14-07:36:38.006817 7fb0c64c7a80 Options.max_write_buffer_number: 6
+2021/03/14-07:36:38.006818 7fb0c64c7a80 Options.compression[0]: NoCompression
+2021/03/14-07:36:38.006819 7fb0c64c7a80 Options.compression[1]: NoCompression
+2021/03/14-07:36:38.006819 7fb0c64c7a80 Options.compression[2]: Snappy
+2021/03/14-07:36:38.006820 7fb0c64c7a80 Options.compression[3]: Snappy
+2021/03/14-07:36:38.006820 7fb0c64c7a80 Options.compression[4]: Snappy
+2021/03/14-07:36:38.006821 7fb0c64c7a80 Options.compression[5]: Snappy
+2021/03/14-07:36:38.006821 7fb0c64c7a80 Options.compression[6]: Snappy
+2021/03/14-07:36:38.006822 7fb0c64c7a80 Options.bottommost_compression: Disabled
+2021/03/14-07:36:38.006823 7fb0c64c7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:36:38.006824 7fb0c64c7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:36:38.006824 7fb0c64c7a80 Options.num_levels: 7
+2021/03/14-07:36:38.006825 7fb0c64c7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:36:38.006825 7fb0c64c7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:36:38.006826 7fb0c64c7a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:36:38.006826 7fb0c64c7a80 Options.compression_opts.level: -1
+2021/03/14-07:36:38.006827 7fb0c64c7a80 Options.compression_opts.strategy: 0
+2021/03/14-07:36:38.006828 7fb0c64c7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:36:38.006828 7fb0c64c7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:36:38.006829 7fb0c64c7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:36:38.006829 7fb0c64c7a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:36:38.006830 7fb0c64c7a80 Options.target_file_size_base: 67108864
+2021/03/14-07:36:38.006831 7fb0c64c7a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:36:38.006831 7fb0c64c7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:36:38.006832 7fb0c64c7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:36:38.006832 7fb0c64c7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:36:38.006834 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:36:38.006841 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:36:38.006842 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:36:38.006843 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:36:38.006843 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:36:38.006844 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:36:38.006844 7fb0c64c7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:36:38.006845 7fb0c64c7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:36:38.006845 7fb0c64c7a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:36:38.006846 7fb0c64c7a80 Options.arena_block_size: 16777216
+2021/03/14-07:36:38.006847 7fb0c64c7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:36:38.006847 7fb0c64c7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:36:38.006848 7fb0c64c7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:36:38.006848 7fb0c64c7a80 Options.disable_auto_compactions: 0
+2021/03/14-07:36:38.006850 7fb0c64c7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:36:38.006851 7fb0c64c7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:36:38.006851 7fb0c64c7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:36:38.006852 7fb0c64c7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:36:38.006853 7fb0c64c7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:36:38.006853 7fb0c64c7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:36:38.006854 7fb0c64c7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:36:38.006855 7fb0c64c7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:36:38.006856 7fb0c64c7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:36:38.006856 7fb0c64c7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:36:38.006857 7fb0c64c7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:36:38.006857 7fb0c64c7a80 Options.table_properties_collectors:
+2021/03/14-07:36:38.006858 7fb0c64c7a80 Options.inplace_update_support: 0
+2021/03/14-07:36:38.006859 7fb0c64c7a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:36:38.006859 7fb0c64c7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:36:38.006860 7fb0c64c7a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:36:38.006861 7fb0c64c7a80 Options.bloom_locality: 0
+2021/03/14-07:36:38.006861 7fb0c64c7a80 Options.max_successive_merges: 0
+2021/03/14-07:36:38.006862 7fb0c64c7a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:36:38.006862 7fb0c64c7a80 Options.paranoid_file_checks: 0
+2021/03/14-07:36:38.006863 7fb0c64c7a80 Options.force_consistency_checks: 0
+2021/03/14-07:36:38.006863 7fb0c64c7a80 Options.report_bg_io_stats: 0
+2021/03/14-07:36:38.007269 7fb0c64c7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:36:38.007272 7fb0c64c7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:36:38.007426 7fb0c64c7a80 EVENT_LOG_v1 {"time_micros": 1615703798007415, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:36:38.007431 7fb0c64c7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:36:38.824786 7fb0c64c7a80 EVENT_LOG_v1 {"time_micros": 1615703798824783, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703935472719 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703935472719
new file mode 100644
index 0000000..ff7df18
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703935472719
@@ -0,0 +1,186 @@
+2021/03/14-07:38:54.677034 7f4c76249a80 RocksDB version: 5.11.3
+2021/03/14-07:38:54.677090 7f4c76249a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:38:54.677091 7f4c76249a80 Compile date Mar 13 2021
+2021/03/14-07:38:54.677097 7f4c76249a80 DB SUMMARY
+2021/03/14-07:38:54.677268 7f4c76249a80 CURRENT file: CURRENT
+2021/03/14-07:38:54.677269 7f4c76249a80 IDENTITY file: IDENTITY
+2021/03/14-07:38:54.677284 7f4c76249a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:38:54.677285 7f4c76249a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:38:54.677286 7f4c76249a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:38:54.677292 7f4c76249a80 Options.error_if_exists: 0
+2021/03/14-07:38:54.677293 7f4c76249a80 Options.create_if_missing: 1
+2021/03/14-07:38:54.677293 7f4c76249a80 Options.paranoid_checks: 1
+2021/03/14-07:38:54.677294 7f4c76249a80 Options.env: 0x7f4c76c03080
+2021/03/14-07:38:54.677295 7f4c76249a80 Options.info_log: 0x29aefa0
+2021/03/14-07:38:54.677295 7f4c76249a80 Options.max_file_opening_threads: 16
+2021/03/14-07:38:54.677296 7f4c76249a80 Options.statistics: (nil)
+2021/03/14-07:38:54.677296 7f4c76249a80 Options.use_fsync: 0
+2021/03/14-07:38:54.677297 7f4c76249a80 Options.max_log_file_size: 0
+2021/03/14-07:38:54.677298 7f4c76249a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:38:54.677298 7f4c76249a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:38:54.677299 7f4c76249a80 Options.keep_log_file_num: 1000
+2021/03/14-07:38:54.677299 7f4c76249a80 Options.recycle_log_file_num: 0
+2021/03/14-07:38:54.677300 7f4c76249a80 Options.allow_fallocate: 1
+2021/03/14-07:38:54.677301 7f4c76249a80 Options.allow_mmap_reads: 0
+2021/03/14-07:38:54.677301 7f4c76249a80 Options.allow_mmap_writes: 0
+2021/03/14-07:38:54.677302 7f4c76249a80 Options.use_direct_reads: 0
+2021/03/14-07:38:54.677302 7f4c76249a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:38:54.677303 7f4c76249a80 Options.create_missing_column_families: 0
+2021/03/14-07:38:54.677303 7f4c76249a80 Options.db_log_dir:
+2021/03/14-07:38:54.677304 7f4c76249a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:38:54.677305 7f4c76249a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:38:54.677305 7f4c76249a80 Options.max_subcompactions: 1
+2021/03/14-07:38:54.677306 7f4c76249a80 Options.max_background_flushes: -1
+2021/03/14-07:38:54.677306 7f4c76249a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:38:54.677307 7f4c76249a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:38:54.677308 7f4c76249a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:38:54.677308 7f4c76249a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:38:54.677309 7f4c76249a80 Options.advise_random_on_open: 1
+2021/03/14-07:38:54.677309 7f4c76249a80 Options.db_write_buffer_size: 0
+2021/03/14-07:38:54.677310 7f4c76249a80 Options.write_buffer_manager: 0x2996e90
+2021/03/14-07:38:54.677310 7f4c76249a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:38:54.677311 7f4c76249a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:38:54.677312 7f4c76249a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:38:54.677312 7f4c76249a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:38:54.677313 7f4c76249a80 Options.rate_limiter: (nil)
+2021/03/14-07:38:54.677314 7f4c76249a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:38:54.677324 7f4c76249a80 Options.wal_recovery_mode: 2
+2021/03/14-07:38:54.677325 7f4c76249a80 Options.enable_thread_tracking: 0
+2021/03/14-07:38:54.677325 7f4c76249a80 Options.enable_pipelined_write: 0
+2021/03/14-07:38:54.677326 7f4c76249a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:38:54.677326 7f4c76249a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:38:54.677327 7f4c76249a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:38:54.677328 7f4c76249a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:38:54.677328 7f4c76249a80 Options.row_cache: None
+2021/03/14-07:38:54.677329 7f4c76249a80 Options.wal_filter: None
+2021/03/14-07:38:54.677329 7f4c76249a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:38:54.677330 7f4c76249a80 Options.allow_ingest_behind: 0
+2021/03/14-07:38:54.677331 7f4c76249a80 Options.preserve_deletes: 0
+2021/03/14-07:38:54.677331 7f4c76249a80 Options.two_write_queues: 0
+2021/03/14-07:38:54.677332 7f4c76249a80 Options.manual_wal_flush: 0
+2021/03/14-07:38:54.677333 7f4c76249a80 Options.max_background_jobs: 16
+2021/03/14-07:38:54.677333 7f4c76249a80 Options.max_background_compactions: -1
+2021/03/14-07:38:54.677334 7f4c76249a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:38:54.677335 7f4c76249a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:38:54.677335 7f4c76249a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:38:54.677336 7f4c76249a80 Options.max_total_wal_size: 0
+2021/03/14-07:38:54.677336 7f4c76249a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:38:54.677337 7f4c76249a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:38:54.677338 7f4c76249a80 Options.max_open_files: -1
+2021/03/14-07:38:54.677338 7f4c76249a80 Options.bytes_per_sync: 0
+2021/03/14-07:38:54.677339 7f4c76249a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:38:54.677339 7f4c76249a80 Options.compaction_readahead_size: 0
+2021/03/14-07:38:54.677340 7f4c76249a80 Compression algorithms supported:
+2021/03/14-07:38:54.677341 7f4c76249a80 Snappy supported: 1
+2021/03/14-07:38:54.677341 7f4c76249a80 Zlib supported: 1
+2021/03/14-07:38:54.677342 7f4c76249a80 Bzip supported: 1
+2021/03/14-07:38:54.677342 7f4c76249a80 LZ4 supported: 1
+2021/03/14-07:38:54.677343 7f4c76249a80 ZSTDNotFinal supported: 1
+2021/03/14-07:38:54.677348 7f4c76249a80 ZSTD supported: 1
+2021/03/14-07:38:54.677351 7f4c76249a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:38:54.677352 7f4c76249a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:38:54.677469 7f4c76249a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:38:54.677523 7f4c76249a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:38:54.677525 7f4c76249a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:38:54.677526 7f4c76249a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:38:54.677527 7f4c76249a80 Options.compaction_filter: None
+2021/03/14-07:38:54.677527 7f4c76249a80 Options.compaction_filter_factory: None
+2021/03/14-07:38:54.677528 7f4c76249a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:38:54.677529 7f4c76249a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:38:54.677545 7f4c76249a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x29a6820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x298bf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:38:54.677546 7f4c76249a80 Options.write_buffer_size: 134217728
+2021/03/14-07:38:54.677547 7f4c76249a80 Options.max_write_buffer_number: 6
+2021/03/14-07:38:54.677547 7f4c76249a80 Options.compression[0]: NoCompression
+2021/03/14-07:38:54.677548 7f4c76249a80 Options.compression[1]: NoCompression
+2021/03/14-07:38:54.677549 7f4c76249a80 Options.compression[2]: Snappy
+2021/03/14-07:38:54.677550 7f4c76249a80 Options.compression[3]: Snappy
+2021/03/14-07:38:54.677550 7f4c76249a80 Options.compression[4]: Snappy
+2021/03/14-07:38:54.677551 7f4c76249a80 Options.compression[5]: Snappy
+2021/03/14-07:38:54.677551 7f4c76249a80 Options.compression[6]: Snappy
+2021/03/14-07:38:54.677552 7f4c76249a80 Options.bottommost_compression: Disabled
+2021/03/14-07:38:54.677553 7f4c76249a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:38:54.677554 7f4c76249a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:38:54.677554 7f4c76249a80 Options.num_levels: 7
+2021/03/14-07:38:54.677555 7f4c76249a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:38:54.677555 7f4c76249a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:38:54.677556 7f4c76249a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:38:54.677557 7f4c76249a80 Options.compression_opts.level: -1
+2021/03/14-07:38:54.677557 7f4c76249a80 Options.compression_opts.strategy: 0
+2021/03/14-07:38:54.677558 7f4c76249a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:38:54.677558 7f4c76249a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:38:54.677559 7f4c76249a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:38:54.677560 7f4c76249a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:38:54.677560 7f4c76249a80 Options.target_file_size_base: 67108864
+2021/03/14-07:38:54.677561 7f4c76249a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:38:54.677561 7f4c76249a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:38:54.677562 7f4c76249a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:38:54.677563 7f4c76249a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:38:54.677564 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:38:54.677572 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:38:54.677573 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:38:54.677573 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:38:54.677574 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:38:54.677575 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:38:54.677575 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:38:54.677576 7f4c76249a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:38:54.677576 7f4c76249a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:38:54.677577 7f4c76249a80 Options.arena_block_size: 16777216
+2021/03/14-07:38:54.677578 7f4c76249a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:38:54.677578 7f4c76249a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:38:54.677579 7f4c76249a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:38:54.677580 7f4c76249a80 Options.disable_auto_compactions: 0
+2021/03/14-07:38:54.677581 7f4c76249a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:38:54.677582 7f4c76249a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:38:54.677583 7f4c76249a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:38:54.677584 7f4c76249a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:38:54.677584 7f4c76249a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:38:54.677585 7f4c76249a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:38:54.677585 7f4c76249a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:38:54.677587 7f4c76249a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:38:54.677587 7f4c76249a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:38:54.677588 7f4c76249a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:38:54.677588 7f4c76249a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:38:54.677589 7f4c76249a80 Options.table_properties_collectors:
+2021/03/14-07:38:54.677590 7f4c76249a80 Options.inplace_update_support: 0
+2021/03/14-07:38:54.677590 7f4c76249a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:38:54.677591 7f4c76249a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:38:54.677592 7f4c76249a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:38:54.677593 7f4c76249a80 Options.bloom_locality: 0
+2021/03/14-07:38:54.677593 7f4c76249a80 Options.max_successive_merges: 0
+2021/03/14-07:38:54.677594 7f4c76249a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:38:54.677594 7f4c76249a80 Options.paranoid_file_checks: 0
+2021/03/14-07:38:54.677595 7f4c76249a80 Options.force_consistency_checks: 0
+2021/03/14-07:38:54.677596 7f4c76249a80 Options.report_bg_io_stats: 0
+2021/03/14-07:38:54.677991 7f4c76249a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:38:54.677994 7f4c76249a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:38:54.678160 7f4c76249a80 EVENT_LOG_v1 {"time_micros": 1615703934678149, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:38:54.678165 7f4c76249a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:38:55.459996 7f4c76249a80 EVENT_LOG_v1 {"time_micros": 1615703935459992, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703936213364 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703936213364
new file mode 100644
index 0000000..188ebb6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703936213364
@@ -0,0 +1,186 @@
+2021/03/14-07:38:55.473148 7f4c76249a80 RocksDB version: 5.11.3
+2021/03/14-07:38:55.473201 7f4c76249a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:38:55.473202 7f4c76249a80 Compile date Mar 13 2021
+2021/03/14-07:38:55.473207 7f4c76249a80 DB SUMMARY
+2021/03/14-07:38:55.473370 7f4c76249a80 CURRENT file: CURRENT
+2021/03/14-07:38:55.473371 7f4c76249a80 IDENTITY file: IDENTITY
+2021/03/14-07:38:55.473388 7f4c76249a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:38:55.473389 7f4c76249a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:38:55.473390 7f4c76249a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:38:55.473396 7f4c76249a80 Options.error_if_exists: 0
+2021/03/14-07:38:55.473397 7f4c76249a80 Options.create_if_missing: 1
+2021/03/14-07:38:55.473397 7f4c76249a80 Options.paranoid_checks: 1
+2021/03/14-07:38:55.473398 7f4c76249a80 Options.env: 0x7f4c76c03080
+2021/03/14-07:38:55.473398 7f4c76249a80 Options.info_log: 0x29aefa0
+2021/03/14-07:38:55.473399 7f4c76249a80 Options.max_file_opening_threads: 16
+2021/03/14-07:38:55.473400 7f4c76249a80 Options.statistics: (nil)
+2021/03/14-07:38:55.473400 7f4c76249a80 Options.use_fsync: 0
+2021/03/14-07:38:55.473401 7f4c76249a80 Options.max_log_file_size: 0
+2021/03/14-07:38:55.473402 7f4c76249a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:38:55.473402 7f4c76249a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:38:55.473403 7f4c76249a80 Options.keep_log_file_num: 1000
+2021/03/14-07:38:55.473403 7f4c76249a80 Options.recycle_log_file_num: 0
+2021/03/14-07:38:55.473404 7f4c76249a80 Options.allow_fallocate: 1
+2021/03/14-07:38:55.473404 7f4c76249a80 Options.allow_mmap_reads: 0
+2021/03/14-07:38:55.473405 7f4c76249a80 Options.allow_mmap_writes: 0
+2021/03/14-07:38:55.473406 7f4c76249a80 Options.use_direct_reads: 0
+2021/03/14-07:38:55.473406 7f4c76249a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:38:55.473407 7f4c76249a80 Options.create_missing_column_families: 0
+2021/03/14-07:38:55.473407 7f4c76249a80 Options.db_log_dir:
+2021/03/14-07:38:55.473408 7f4c76249a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:38:55.473408 7f4c76249a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:38:55.473409 7f4c76249a80 Options.max_subcompactions: 1
+2021/03/14-07:38:55.473409 7f4c76249a80 Options.max_background_flushes: -1
+2021/03/14-07:38:55.473410 7f4c76249a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:38:55.473411 7f4c76249a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:38:55.473411 7f4c76249a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:38:55.473412 7f4c76249a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:38:55.473412 7f4c76249a80 Options.advise_random_on_open: 1
+2021/03/14-07:38:55.473413 7f4c76249a80 Options.db_write_buffer_size: 0
+2021/03/14-07:38:55.473413 7f4c76249a80 Options.write_buffer_manager: 0x2996e90
+2021/03/14-07:38:55.473414 7f4c76249a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:38:55.473414 7f4c76249a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:38:55.473415 7f4c76249a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:38:55.473416 7f4c76249a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:38:55.473416 7f4c76249a80 Options.rate_limiter: (nil)
+2021/03/14-07:38:55.473418 7f4c76249a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:38:55.473426 7f4c76249a80 Options.wal_recovery_mode: 2
+2021/03/14-07:38:55.473427 7f4c76249a80 Options.enable_thread_tracking: 0
+2021/03/14-07:38:55.473428 7f4c76249a80 Options.enable_pipelined_write: 0
+2021/03/14-07:38:55.473428 7f4c76249a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:38:55.473429 7f4c76249a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:38:55.473429 7f4c76249a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:38:55.473430 7f4c76249a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:38:55.473430 7f4c76249a80 Options.row_cache: None
+2021/03/14-07:38:55.473431 7f4c76249a80 Options.wal_filter: None
+2021/03/14-07:38:55.473432 7f4c76249a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:38:55.473432 7f4c76249a80 Options.allow_ingest_behind: 0
+2021/03/14-07:38:55.473433 7f4c76249a80 Options.preserve_deletes: 0
+2021/03/14-07:38:55.473433 7f4c76249a80 Options.two_write_queues: 0
+2021/03/14-07:38:55.473434 7f4c76249a80 Options.manual_wal_flush: 0
+2021/03/14-07:38:55.473435 7f4c76249a80 Options.max_background_jobs: 16
+2021/03/14-07:38:55.473435 7f4c76249a80 Options.max_background_compactions: -1
+2021/03/14-07:38:55.473436 7f4c76249a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:38:55.473437 7f4c76249a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:38:55.473437 7f4c76249a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:38:55.473438 7f4c76249a80 Options.max_total_wal_size: 0
+2021/03/14-07:38:55.473438 7f4c76249a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:38:55.473439 7f4c76249a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:38:55.473440 7f4c76249a80 Options.max_open_files: -1
+2021/03/14-07:38:55.473440 7f4c76249a80 Options.bytes_per_sync: 0
+2021/03/14-07:38:55.473441 7f4c76249a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:38:55.473441 7f4c76249a80 Options.compaction_readahead_size: 0
+2021/03/14-07:38:55.473442 7f4c76249a80 Compression algorithms supported:
+2021/03/14-07:38:55.473442 7f4c76249a80 Snappy supported: 1
+2021/03/14-07:38:55.473443 7f4c76249a80 Zlib supported: 1
+2021/03/14-07:38:55.473443 7f4c76249a80 Bzip supported: 1
+2021/03/14-07:38:55.473444 7f4c76249a80 LZ4 supported: 1
+2021/03/14-07:38:55.473445 7f4c76249a80 ZSTDNotFinal supported: 1
+2021/03/14-07:38:55.473449 7f4c76249a80 ZSTD supported: 1
+2021/03/14-07:38:55.473452 7f4c76249a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:38:55.473454 7f4c76249a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:38:55.473571 7f4c76249a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:38:55.473645 7f4c76249a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:38:55.473647 7f4c76249a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:38:55.473649 7f4c76249a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:38:55.473650 7f4c76249a80 Options.compaction_filter: None
+2021/03/14-07:38:55.473651 7f4c76249a80 Options.compaction_filter_factory: None
+2021/03/14-07:38:55.473652 7f4c76249a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:38:55.473653 7f4c76249a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:38:55.473675 7f4c76249a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x29a6820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x298bf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:38:55.473676 7f4c76249a80 Options.write_buffer_size: 134217728
+2021/03/14-07:38:55.473677 7f4c76249a80 Options.max_write_buffer_number: 6
+2021/03/14-07:38:55.473678 7f4c76249a80 Options.compression[0]: NoCompression
+2021/03/14-07:38:55.473679 7f4c76249a80 Options.compression[1]: NoCompression
+2021/03/14-07:38:55.473681 7f4c76249a80 Options.compression[2]: Snappy
+2021/03/14-07:38:55.473682 7f4c76249a80 Options.compression[3]: Snappy
+2021/03/14-07:38:55.473683 7f4c76249a80 Options.compression[4]: Snappy
+2021/03/14-07:38:55.473684 7f4c76249a80 Options.compression[5]: Snappy
+2021/03/14-07:38:55.473685 7f4c76249a80 Options.compression[6]: Snappy
+2021/03/14-07:38:55.473686 7f4c76249a80 Options.bottommost_compression: Disabled
+2021/03/14-07:38:55.473687 7f4c76249a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:38:55.473688 7f4c76249a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:38:55.473689 7f4c76249a80 Options.num_levels: 7
+2021/03/14-07:38:55.473690 7f4c76249a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:38:55.473691 7f4c76249a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:38:55.473692 7f4c76249a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:38:55.473693 7f4c76249a80 Options.compression_opts.level: -1
+2021/03/14-07:38:55.473694 7f4c76249a80 Options.compression_opts.strategy: 0
+2021/03/14-07:38:55.473695 7f4c76249a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:38:55.473695 7f4c76249a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:38:55.473696 7f4c76249a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:38:55.473696 7f4c76249a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:38:55.473697 7f4c76249a80 Options.target_file_size_base: 67108864
+2021/03/14-07:38:55.473697 7f4c76249a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:38:55.473698 7f4c76249a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:38:55.473699 7f4c76249a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:38:55.473699 7f4c76249a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:38:55.473701 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:38:55.473710 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:38:55.473711 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:38:55.473712 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:38:55.473712 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:38:55.473713 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:38:55.473713 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:38:55.473714 7f4c76249a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:38:55.473715 7f4c76249a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:38:55.473715 7f4c76249a80 Options.arena_block_size: 16777216
+2021/03/14-07:38:55.473716 7f4c76249a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:38:55.473716 7f4c76249a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:38:55.473717 7f4c76249a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:38:55.473718 7f4c76249a80 Options.disable_auto_compactions: 0
+2021/03/14-07:38:55.473719 7f4c76249a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:38:55.473720 7f4c76249a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:38:55.473721 7f4c76249a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:38:55.473721 7f4c76249a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:38:55.473722 7f4c76249a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:38:55.473723 7f4c76249a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:38:55.473723 7f4c76249a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:38:55.473725 7f4c76249a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:38:55.473725 7f4c76249a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:38:55.473726 7f4c76249a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:38:55.473726 7f4c76249a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:38:55.473727 7f4c76249a80 Options.table_properties_collectors:
+2021/03/14-07:38:55.473727 7f4c76249a80 Options.inplace_update_support: 0
+2021/03/14-07:38:55.473728 7f4c76249a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:38:55.473728 7f4c76249a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:38:55.473729 7f4c76249a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:38:55.473730 7f4c76249a80 Options.bloom_locality: 0
+2021/03/14-07:38:55.473731 7f4c76249a80 Options.max_successive_merges: 0
+2021/03/14-07:38:55.473731 7f4c76249a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:38:55.473732 7f4c76249a80 Options.paranoid_file_checks: 0
+2021/03/14-07:38:55.473732 7f4c76249a80 Options.force_consistency_checks: 0
+2021/03/14-07:38:55.473733 7f4c76249a80 Options.report_bg_io_stats: 0
+2021/03/14-07:38:55.474154 7f4c76249a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:38:55.474156 7f4c76249a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:38:55.474328 7f4c76249a80 EVENT_LOG_v1 {"time_micros": 1615703935474317, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:38:55.474334 7f4c76249a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:38:56.200676 7f4c76249a80 EVENT_LOG_v1 {"time_micros": 1615703936200673, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615703936945328 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703936945328
new file mode 100644
index 0000000..5b0c9b9
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615703936945328
@@ -0,0 +1,186 @@
+2021/03/14-07:38:56.213773 7f4c76249a80 RocksDB version: 5.11.3
+2021/03/14-07:38:56.213844 7f4c76249a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:38:56.213846 7f4c76249a80 Compile date Mar 13 2021
+2021/03/14-07:38:56.213851 7f4c76249a80 DB SUMMARY
+2021/03/14-07:38:56.214007 7f4c76249a80 CURRENT file: CURRENT
+2021/03/14-07:38:56.214008 7f4c76249a80 IDENTITY file: IDENTITY
+2021/03/14-07:38:56.214023 7f4c76249a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:38:56.214025 7f4c76249a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:38:56.214025 7f4c76249a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:38:56.214031 7f4c76249a80 Options.error_if_exists: 0
+2021/03/14-07:38:56.214032 7f4c76249a80 Options.create_if_missing: 1
+2021/03/14-07:38:56.214032 7f4c76249a80 Options.paranoid_checks: 1
+2021/03/14-07:38:56.214033 7f4c76249a80 Options.env: 0x7f4c76c03080
+2021/03/14-07:38:56.214034 7f4c76249a80 Options.info_log: 0x29aefa0
+2021/03/14-07:38:56.214034 7f4c76249a80 Options.max_file_opening_threads: 16
+2021/03/14-07:38:56.214035 7f4c76249a80 Options.statistics: (nil)
+2021/03/14-07:38:56.214035 7f4c76249a80 Options.use_fsync: 0
+2021/03/14-07:38:56.214036 7f4c76249a80 Options.max_log_file_size: 0
+2021/03/14-07:38:56.214037 7f4c76249a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:38:56.214037 7f4c76249a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:38:56.214038 7f4c76249a80 Options.keep_log_file_num: 1000
+2021/03/14-07:38:56.214038 7f4c76249a80 Options.recycle_log_file_num: 0
+2021/03/14-07:38:56.214039 7f4c76249a80 Options.allow_fallocate: 1
+2021/03/14-07:38:56.214040 7f4c76249a80 Options.allow_mmap_reads: 0
+2021/03/14-07:38:56.214040 7f4c76249a80 Options.allow_mmap_writes: 0
+2021/03/14-07:38:56.214041 7f4c76249a80 Options.use_direct_reads: 0
+2021/03/14-07:38:56.214041 7f4c76249a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:38:56.214042 7f4c76249a80 Options.create_missing_column_families: 0
+2021/03/14-07:38:56.214042 7f4c76249a80 Options.db_log_dir:
+2021/03/14-07:38:56.214043 7f4c76249a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:38:56.214043 7f4c76249a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:38:56.214044 7f4c76249a80 Options.max_subcompactions: 1
+2021/03/14-07:38:56.214045 7f4c76249a80 Options.max_background_flushes: -1
+2021/03/14-07:38:56.214045 7f4c76249a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:38:56.214046 7f4c76249a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:38:56.214046 7f4c76249a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:38:56.214047 7f4c76249a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:38:56.214047 7f4c76249a80 Options.advise_random_on_open: 1
+2021/03/14-07:38:56.214048 7f4c76249a80 Options.db_write_buffer_size: 0
+2021/03/14-07:38:56.214049 7f4c76249a80 Options.write_buffer_manager: 0x2996e90
+2021/03/14-07:38:56.214049 7f4c76249a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:38:56.214050 7f4c76249a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:38:56.214050 7f4c76249a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:38:56.214051 7f4c76249a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:38:56.214051 7f4c76249a80 Options.rate_limiter: (nil)
+2021/03/14-07:38:56.214053 7f4c76249a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:38:56.214060 7f4c76249a80 Options.wal_recovery_mode: 2
+2021/03/14-07:38:56.214061 7f4c76249a80 Options.enable_thread_tracking: 0
+2021/03/14-07:38:56.214062 7f4c76249a80 Options.enable_pipelined_write: 0
+2021/03/14-07:38:56.214062 7f4c76249a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:38:56.214063 7f4c76249a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:38:56.214063 7f4c76249a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:38:56.214064 7f4c76249a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:38:56.214064 7f4c76249a80 Options.row_cache: None
+2021/03/14-07:38:56.214065 7f4c76249a80 Options.wal_filter: None
+2021/03/14-07:38:56.214066 7f4c76249a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:38:56.214066 7f4c76249a80 Options.allow_ingest_behind: 0
+2021/03/14-07:38:56.214067 7f4c76249a80 Options.preserve_deletes: 0
+2021/03/14-07:38:56.214067 7f4c76249a80 Options.two_write_queues: 0
+2021/03/14-07:38:56.214068 7f4c76249a80 Options.manual_wal_flush: 0
+2021/03/14-07:38:56.214069 7f4c76249a80 Options.max_background_jobs: 16
+2021/03/14-07:38:56.214070 7f4c76249a80 Options.max_background_compactions: -1
+2021/03/14-07:38:56.214070 7f4c76249a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:38:56.214071 7f4c76249a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:38:56.214071 7f4c76249a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:38:56.214072 7f4c76249a80 Options.max_total_wal_size: 0
+2021/03/14-07:38:56.214072 7f4c76249a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:38:56.214073 7f4c76249a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:38:56.214074 7f4c76249a80 Options.max_open_files: -1
+2021/03/14-07:38:56.214074 7f4c76249a80 Options.bytes_per_sync: 0
+2021/03/14-07:38:56.214075 7f4c76249a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:38:56.214075 7f4c76249a80 Options.compaction_readahead_size: 0
+2021/03/14-07:38:56.214076 7f4c76249a80 Compression algorithms supported:
+2021/03/14-07:38:56.214076 7f4c76249a80 Snappy supported: 1
+2021/03/14-07:38:56.214077 7f4c76249a80 Zlib supported: 1
+2021/03/14-07:38:56.214078 7f4c76249a80 Bzip supported: 1
+2021/03/14-07:38:56.214078 7f4c76249a80 LZ4 supported: 1
+2021/03/14-07:38:56.214079 7f4c76249a80 ZSTDNotFinal supported: 1
+2021/03/14-07:38:56.214083 7f4c76249a80 ZSTD supported: 1
+2021/03/14-07:38:56.214086 7f4c76249a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:38:56.214087 7f4c76249a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:38:56.214179 7f4c76249a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:38:56.214232 7f4c76249a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:38:56.214234 7f4c76249a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:38:56.214235 7f4c76249a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:38:56.214235 7f4c76249a80 Options.compaction_filter: None
+2021/03/14-07:38:56.214236 7f4c76249a80 Options.compaction_filter_factory: None
+2021/03/14-07:38:56.214237 7f4c76249a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:38:56.214256 7f4c76249a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:38:56.214272 7f4c76249a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x29a6820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x298bf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:38:56.214273 7f4c76249a80 Options.write_buffer_size: 134217728
+2021/03/14-07:38:56.214273 7f4c76249a80 Options.max_write_buffer_number: 6
+2021/03/14-07:38:56.214274 7f4c76249a80 Options.compression[0]: NoCompression
+2021/03/14-07:38:56.214275 7f4c76249a80 Options.compression[1]: NoCompression
+2021/03/14-07:38:56.214275 7f4c76249a80 Options.compression[2]: Snappy
+2021/03/14-07:38:56.214276 7f4c76249a80 Options.compression[3]: Snappy
+2021/03/14-07:38:56.214276 7f4c76249a80 Options.compression[4]: Snappy
+2021/03/14-07:38:56.214277 7f4c76249a80 Options.compression[5]: Snappy
+2021/03/14-07:38:56.214277 7f4c76249a80 Options.compression[6]: Snappy
+2021/03/14-07:38:56.214278 7f4c76249a80 Options.bottommost_compression: Disabled
+2021/03/14-07:38:56.214279 7f4c76249a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:38:56.214279 7f4c76249a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:38:56.214280 7f4c76249a80 Options.num_levels: 7
+2021/03/14-07:38:56.214280 7f4c76249a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:38:56.214281 7f4c76249a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:38:56.214282 7f4c76249a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:38:56.214282 7f4c76249a80 Options.compression_opts.level: -1
+2021/03/14-07:38:56.214283 7f4c76249a80 Options.compression_opts.strategy: 0
+2021/03/14-07:38:56.214283 7f4c76249a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:38:56.214284 7f4c76249a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:38:56.214284 7f4c76249a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:38:56.214285 7f4c76249a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:38:56.214286 7f4c76249a80 Options.target_file_size_base: 67108864
+2021/03/14-07:38:56.214286 7f4c76249a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:38:56.214287 7f4c76249a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:38:56.214287 7f4c76249a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:38:56.214288 7f4c76249a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:38:56.214290 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:38:56.214298 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:38:56.214299 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:38:56.214299 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:38:56.214300 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:38:56.214300 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:38:56.214301 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:38:56.214302 7f4c76249a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:38:56.214302 7f4c76249a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:38:56.214303 7f4c76249a80 Options.arena_block_size: 16777216
+2021/03/14-07:38:56.214303 7f4c76249a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:38:56.214304 7f4c76249a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:38:56.214305 7f4c76249a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:38:56.214305 7f4c76249a80 Options.disable_auto_compactions: 0
+2021/03/14-07:38:56.214307 7f4c76249a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:38:56.214307 7f4c76249a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:38:56.214308 7f4c76249a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:38:56.214309 7f4c76249a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:38:56.214309 7f4c76249a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:38:56.214310 7f4c76249a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:38:56.214310 7f4c76249a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:38:56.214311 7f4c76249a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:38:56.214312 7f4c76249a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:38:56.214313 7f4c76249a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:38:56.214313 7f4c76249a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:38:56.214314 7f4c76249a80 Options.table_properties_collectors:
+2021/03/14-07:38:56.214314 7f4c76249a80 Options.inplace_update_support: 0
+2021/03/14-07:38:56.214315 7f4c76249a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:38:56.214315 7f4c76249a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:38:56.214316 7f4c76249a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:38:56.214317 7f4c76249a80 Options.bloom_locality: 0
+2021/03/14-07:38:56.214317 7f4c76249a80 Options.max_successive_merges: 0
+2021/03/14-07:38:56.214318 7f4c76249a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:38:56.214318 7f4c76249a80 Options.paranoid_file_checks: 0
+2021/03/14-07:38:56.214319 7f4c76249a80 Options.force_consistency_checks: 0
+2021/03/14-07:38:56.214320 7f4c76249a80 Options.report_bg_io_stats: 0
+2021/03/14-07:38:56.214681 7f4c76249a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:38:56.214684 7f4c76249a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:38:56.214839 7f4c76249a80 EVENT_LOG_v1 {"time_micros": 1615703936214829, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:38:56.214845 7f4c76249a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:38:56.932573 7f4c76249a80 EVENT_LOG_v1 {"time_micros": 1615703936932570, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704094737936 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704094737936
new file mode 100644
index 0000000..cb3ae66
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704094737936
@@ -0,0 +1,186 @@
+2021/03/14-07:38:56.945731 7f4c76249a80 RocksDB version: 5.11.3
+2021/03/14-07:38:56.945784 7f4c76249a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:38:56.945786 7f4c76249a80 Compile date Mar 13 2021
+2021/03/14-07:38:56.945790 7f4c76249a80 DB SUMMARY
+2021/03/14-07:38:56.945943 7f4c76249a80 CURRENT file: CURRENT
+2021/03/14-07:38:56.945944 7f4c76249a80 IDENTITY file: IDENTITY
+2021/03/14-07:38:56.945959 7f4c76249a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:38:56.945960 7f4c76249a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:38:56.945961 7f4c76249a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:38:56.945967 7f4c76249a80 Options.error_if_exists: 0
+2021/03/14-07:38:56.945967 7f4c76249a80 Options.create_if_missing: 1
+2021/03/14-07:38:56.945968 7f4c76249a80 Options.paranoid_checks: 1
+2021/03/14-07:38:56.945968 7f4c76249a80 Options.env: 0x7f4c76c03080
+2021/03/14-07:38:56.945969 7f4c76249a80 Options.info_log: 0x29aefa0
+2021/03/14-07:38:56.945970 7f4c76249a80 Options.max_file_opening_threads: 16
+2021/03/14-07:38:56.945970 7f4c76249a80 Options.statistics: (nil)
+2021/03/14-07:38:56.945971 7f4c76249a80 Options.use_fsync: 0
+2021/03/14-07:38:56.945971 7f4c76249a80 Options.max_log_file_size: 0
+2021/03/14-07:38:56.945972 7f4c76249a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:38:56.945973 7f4c76249a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:38:56.945973 7f4c76249a80 Options.keep_log_file_num: 1000
+2021/03/14-07:38:56.945974 7f4c76249a80 Options.recycle_log_file_num: 0
+2021/03/14-07:38:56.945974 7f4c76249a80 Options.allow_fallocate: 1
+2021/03/14-07:38:56.945975 7f4c76249a80 Options.allow_mmap_reads: 0
+2021/03/14-07:38:56.945976 7f4c76249a80 Options.allow_mmap_writes: 0
+2021/03/14-07:38:56.945976 7f4c76249a80 Options.use_direct_reads: 0
+2021/03/14-07:38:56.945977 7f4c76249a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:38:56.945977 7f4c76249a80 Options.create_missing_column_families: 0
+2021/03/14-07:38:56.945978 7f4c76249a80 Options.db_log_dir:
+2021/03/14-07:38:56.945978 7f4c76249a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:38:56.945979 7f4c76249a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:38:56.945979 7f4c76249a80 Options.max_subcompactions: 1
+2021/03/14-07:38:56.945980 7f4c76249a80 Options.max_background_flushes: -1
+2021/03/14-07:38:56.945981 7f4c76249a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:38:56.945981 7f4c76249a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:38:56.945982 7f4c76249a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:38:56.945982 7f4c76249a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:38:56.945983 7f4c76249a80 Options.advise_random_on_open: 1
+2021/03/14-07:38:56.945983 7f4c76249a80 Options.db_write_buffer_size: 0
+2021/03/14-07:38:56.945984 7f4c76249a80 Options.write_buffer_manager: 0x2996e90
+2021/03/14-07:38:56.945985 7f4c76249a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:38:56.945985 7f4c76249a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:38:56.945986 7f4c76249a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:38:56.945986 7f4c76249a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:38:56.945987 7f4c76249a80 Options.rate_limiter: (nil)
+2021/03/14-07:38:56.945988 7f4c76249a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:38:56.945995 7f4c76249a80 Options.wal_recovery_mode: 2
+2021/03/14-07:38:56.945996 7f4c76249a80 Options.enable_thread_tracking: 0
+2021/03/14-07:38:56.945996 7f4c76249a80 Options.enable_pipelined_write: 0
+2021/03/14-07:38:56.945997 7f4c76249a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:38:56.945997 7f4c76249a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:38:56.945998 7f4c76249a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:38:56.945999 7f4c76249a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:38:56.945999 7f4c76249a80 Options.row_cache: None
+2021/03/14-07:38:56.946000 7f4c76249a80 Options.wal_filter: None
+2021/03/14-07:38:56.946000 7f4c76249a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:38:56.946001 7f4c76249a80 Options.allow_ingest_behind: 0
+2021/03/14-07:38:56.946001 7f4c76249a80 Options.preserve_deletes: 0
+2021/03/14-07:38:56.946002 7f4c76249a80 Options.two_write_queues: 0
+2021/03/14-07:38:56.946002 7f4c76249a80 Options.manual_wal_flush: 0
+2021/03/14-07:38:56.946003 7f4c76249a80 Options.max_background_jobs: 16
+2021/03/14-07:38:56.946004 7f4c76249a80 Options.max_background_compactions: -1
+2021/03/14-07:38:56.946005 7f4c76249a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:38:56.946005 7f4c76249a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:38:56.946006 7f4c76249a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:38:56.946006 7f4c76249a80 Options.max_total_wal_size: 0
+2021/03/14-07:38:56.946007 7f4c76249a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:38:56.946007 7f4c76249a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:38:56.946008 7f4c76249a80 Options.max_open_files: -1
+2021/03/14-07:38:56.946009 7f4c76249a80 Options.bytes_per_sync: 0
+2021/03/14-07:38:56.946009 7f4c76249a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:38:56.946010 7f4c76249a80 Options.compaction_readahead_size: 0
+2021/03/14-07:38:56.946010 7f4c76249a80 Compression algorithms supported:
+2021/03/14-07:38:56.946011 7f4c76249a80 Snappy supported: 1
+2021/03/14-07:38:56.946011 7f4c76249a80 Zlib supported: 1
+2021/03/14-07:38:56.946012 7f4c76249a80 Bzip supported: 1
+2021/03/14-07:38:56.946013 7f4c76249a80 LZ4 supported: 1
+2021/03/14-07:38:56.946013 7f4c76249a80 ZSTDNotFinal supported: 1
+2021/03/14-07:38:56.946017 7f4c76249a80 ZSTD supported: 1
+2021/03/14-07:38:56.946020 7f4c76249a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:38:56.946021 7f4c76249a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:38:56.946110 7f4c76249a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:38:56.946161 7f4c76249a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:38:56.946163 7f4c76249a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:38:56.946164 7f4c76249a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:38:56.946165 7f4c76249a80 Options.compaction_filter: None
+2021/03/14-07:38:56.946165 7f4c76249a80 Options.compaction_filter_factory: None
+2021/03/14-07:38:56.946166 7f4c76249a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:38:56.946167 7f4c76249a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:38:56.946182 7f4c76249a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x29a6820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x298bf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:38:56.946183 7f4c76249a80 Options.write_buffer_size: 134217728
+2021/03/14-07:38:56.946184 7f4c76249a80 Options.max_write_buffer_number: 6
+2021/03/14-07:38:56.946184 7f4c76249a80 Options.compression[0]: NoCompression
+2021/03/14-07:38:56.946185 7f4c76249a80 Options.compression[1]: NoCompression
+2021/03/14-07:38:56.946186 7f4c76249a80 Options.compression[2]: Snappy
+2021/03/14-07:38:56.946186 7f4c76249a80 Options.compression[3]: Snappy
+2021/03/14-07:38:56.946187 7f4c76249a80 Options.compression[4]: Snappy
+2021/03/14-07:38:56.946187 7f4c76249a80 Options.compression[5]: Snappy
+2021/03/14-07:38:56.946188 7f4c76249a80 Options.compression[6]: Snappy
+2021/03/14-07:38:56.946189 7f4c76249a80 Options.bottommost_compression: Disabled
+2021/03/14-07:38:56.946189 7f4c76249a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:38:56.946190 7f4c76249a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:38:56.946190 7f4c76249a80 Options.num_levels: 7
+2021/03/14-07:38:56.946191 7f4c76249a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:38:56.946192 7f4c76249a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:38:56.946192 7f4c76249a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:38:56.946193 7f4c76249a80 Options.compression_opts.level: -1
+2021/03/14-07:38:56.946194 7f4c76249a80 Options.compression_opts.strategy: 0
+2021/03/14-07:38:56.946194 7f4c76249a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:38:56.946195 7f4c76249a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:38:56.946195 7f4c76249a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:38:56.946196 7f4c76249a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:38:56.946196 7f4c76249a80 Options.target_file_size_base: 67108864
+2021/03/14-07:38:56.946197 7f4c76249a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:38:56.946198 7f4c76249a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:38:56.946198 7f4c76249a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:38:56.946199 7f4c76249a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:38:56.946200 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:38:56.946207 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:38:56.946208 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:38:56.946209 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:38:56.946209 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:38:56.946210 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:38:56.946210 7f4c76249a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:38:56.946211 7f4c76249a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:38:56.946212 7f4c76249a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:38:56.946212 7f4c76249a80 Options.arena_block_size: 16777216
+2021/03/14-07:38:56.946213 7f4c76249a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:38:56.946213 7f4c76249a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:38:56.946214 7f4c76249a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:38:56.946214 7f4c76249a80 Options.disable_auto_compactions: 0
+2021/03/14-07:38:56.946216 7f4c76249a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:38:56.946217 7f4c76249a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:38:56.946217 7f4c76249a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:38:56.946218 7f4c76249a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:38:56.946218 7f4c76249a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:38:56.946219 7f4c76249a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:38:56.946220 7f4c76249a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:38:56.946221 7f4c76249a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:38:56.946221 7f4c76249a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:38:56.946222 7f4c76249a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:38:56.946222 7f4c76249a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:38:56.946223 7f4c76249a80 Options.table_properties_collectors:
+2021/03/14-07:38:56.946224 7f4c76249a80 Options.inplace_update_support: 0
+2021/03/14-07:38:56.946224 7f4c76249a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:38:56.946225 7f4c76249a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:38:56.946226 7f4c76249a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:38:56.946226 7f4c76249a80 Options.bloom_locality: 0
+2021/03/14-07:38:56.946227 7f4c76249a80 Options.max_successive_merges: 0
+2021/03/14-07:38:56.946227 7f4c76249a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:38:56.946228 7f4c76249a80 Options.paranoid_file_checks: 0
+2021/03/14-07:38:56.946228 7f4c76249a80 Options.force_consistency_checks: 0
+2021/03/14-07:38:56.946229 7f4c76249a80 Options.report_bg_io_stats: 0
+2021/03/14-07:38:56.946620 7f4c76249a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:38:56.946623 7f4c76249a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:38:56.946779 7f4c76249a80 EVENT_LOG_v1 {"time_micros": 1615703936946769, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:38:56.946785 7f4c76249a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:38:57.666042 7f4c76249a80 EVENT_LOG_v1 {"time_micros": 1615703937666038, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704095447525 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704095447525
new file mode 100644
index 0000000..fb26baf
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704095447525
@@ -0,0 +1,186 @@
+2021/03/14-07:41:34.738490 7f36a9a7ba80 RocksDB version: 5.11.3
+2021/03/14-07:41:34.738556 7f36a9a7ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:41:34.738557 7f36a9a7ba80 Compile date Mar 13 2021
+2021/03/14-07:41:34.738564 7f36a9a7ba80 DB SUMMARY
+2021/03/14-07:41:34.738730 7f36a9a7ba80 CURRENT file: CURRENT
+2021/03/14-07:41:34.738731 7f36a9a7ba80 IDENTITY file: IDENTITY
+2021/03/14-07:41:34.738747 7f36a9a7ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:41:34.738748 7f36a9a7ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:41:34.738749 7f36a9a7ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:41:34.738755 7f36a9a7ba80 Options.error_if_exists: 0
+2021/03/14-07:41:34.738756 7f36a9a7ba80 Options.create_if_missing: 1
+2021/03/14-07:41:34.738756 7f36a9a7ba80 Options.paranoid_checks: 1
+2021/03/14-07:41:34.738757 7f36a9a7ba80 Options.env: 0x7f36aa435080
+2021/03/14-07:41:34.738758 7f36a9a7ba80 Options.info_log: 0x2c76f60
+2021/03/14-07:41:34.738758 7f36a9a7ba80 Options.max_file_opening_threads: 16
+2021/03/14-07:41:34.738759 7f36a9a7ba80 Options.statistics: (nil)
+2021/03/14-07:41:34.738759 7f36a9a7ba80 Options.use_fsync: 0
+2021/03/14-07:41:34.738760 7f36a9a7ba80 Options.max_log_file_size: 0
+2021/03/14-07:41:34.738761 7f36a9a7ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:41:34.738761 7f36a9a7ba80 Options.log_file_time_to_roll: 0
+2021/03/14-07:41:34.738762 7f36a9a7ba80 Options.keep_log_file_num: 1000
+2021/03/14-07:41:34.738763 7f36a9a7ba80 Options.recycle_log_file_num: 0
+2021/03/14-07:41:34.738763 7f36a9a7ba80 Options.allow_fallocate: 1
+2021/03/14-07:41:34.738764 7f36a9a7ba80 Options.allow_mmap_reads: 0
+2021/03/14-07:41:34.738764 7f36a9a7ba80 Options.allow_mmap_writes: 0
+2021/03/14-07:41:34.738765 7f36a9a7ba80 Options.use_direct_reads: 0
+2021/03/14-07:41:34.738766 7f36a9a7ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:41:34.738766 7f36a9a7ba80 Options.create_missing_column_families: 0
+2021/03/14-07:41:34.738767 7f36a9a7ba80 Options.db_log_dir:
+2021/03/14-07:41:34.738767 7f36a9a7ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:41:34.738768 7f36a9a7ba80 Options.table_cache_numshardbits: 6
+2021/03/14-07:41:34.738769 7f36a9a7ba80 Options.max_subcompactions: 1
+2021/03/14-07:41:34.738769 7f36a9a7ba80 Options.max_background_flushes: -1
+2021/03/14-07:41:34.738770 7f36a9a7ba80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:41:34.738770 7f36a9a7ba80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:41:34.738771 7f36a9a7ba80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:41:34.738772 7f36a9a7ba80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:41:34.738772 7f36a9a7ba80 Options.advise_random_on_open: 1
+2021/03/14-07:41:34.738773 7f36a9a7ba80 Options.db_write_buffer_size: 0
+2021/03/14-07:41:34.738773 7f36a9a7ba80 Options.write_buffer_manager: 0x2c5ee70
+2021/03/14-07:41:34.738774 7f36a9a7ba80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:41:34.738775 7f36a9a7ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:41:34.738775 7f36a9a7ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:41:34.738776 7f36a9a7ba80 Options.use_adaptive_mutex: 0
+2021/03/14-07:41:34.738776 7f36a9a7ba80 Options.rate_limiter: (nil)
+2021/03/14-07:41:34.738778 7f36a9a7ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:41:34.738787 7f36a9a7ba80 Options.wal_recovery_mode: 2
+2021/03/14-07:41:34.738787 7f36a9a7ba80 Options.enable_thread_tracking: 0
+2021/03/14-07:41:34.738788 7f36a9a7ba80 Options.enable_pipelined_write: 0
+2021/03/14-07:41:34.738788 7f36a9a7ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:41:34.738789 7f36a9a7ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:41:34.738790 7f36a9a7ba80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:41:34.738790 7f36a9a7ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:41:34.738791 7f36a9a7ba80 Options.row_cache: None
+2021/03/14-07:41:34.738792 7f36a9a7ba80 Options.wal_filter: None
+2021/03/14-07:41:34.738792 7f36a9a7ba80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:41:34.738793 7f36a9a7ba80 Options.allow_ingest_behind: 0
+2021/03/14-07:41:34.738793 7f36a9a7ba80 Options.preserve_deletes: 0
+2021/03/14-07:41:34.738794 7f36a9a7ba80 Options.two_write_queues: 0
+2021/03/14-07:41:34.738794 7f36a9a7ba80 Options.manual_wal_flush: 0
+2021/03/14-07:41:34.738796 7f36a9a7ba80 Options.max_background_jobs: 16
+2021/03/14-07:41:34.738796 7f36a9a7ba80 Options.max_background_compactions: -1
+2021/03/14-07:41:34.738797 7f36a9a7ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:41:34.738798 7f36a9a7ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:41:34.738798 7f36a9a7ba80 Options.delayed_write_rate : 16777216
+2021/03/14-07:41:34.738799 7f36a9a7ba80 Options.max_total_wal_size: 0
+2021/03/14-07:41:34.738799 7f36a9a7ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:41:34.738800 7f36a9a7ba80 Options.stats_dump_period_sec: 600
+2021/03/14-07:41:34.738801 7f36a9a7ba80 Options.max_open_files: -1
+2021/03/14-07:41:34.738801 7f36a9a7ba80 Options.bytes_per_sync: 0
+2021/03/14-07:41:34.738802 7f36a9a7ba80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:41:34.738802 7f36a9a7ba80 Options.compaction_readahead_size: 0
+2021/03/14-07:41:34.738803 7f36a9a7ba80 Compression algorithms supported:
+2021/03/14-07:41:34.738804 7f36a9a7ba80 Snappy supported: 1
+2021/03/14-07:41:34.738804 7f36a9a7ba80 Zlib supported: 1
+2021/03/14-07:41:34.738805 7f36a9a7ba80 Bzip supported: 1
+2021/03/14-07:41:34.738805 7f36a9a7ba80 LZ4 supported: 1
+2021/03/14-07:41:34.738806 7f36a9a7ba80 ZSTDNotFinal supported: 1
+2021/03/14-07:41:34.738811 7f36a9a7ba80 ZSTD supported: 1
+2021/03/14-07:41:34.738815 7f36a9a7ba80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:41:34.738817 7f36a9a7ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:41:34.738952 7f36a9a7ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:41:34.739016 7f36a9a7ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:41:34.739018 7f36a9a7ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:41:34.739019 7f36a9a7ba80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:41:34.739020 7f36a9a7ba80 Options.compaction_filter: None
+2021/03/14-07:41:34.739021 7f36a9a7ba80 Options.compaction_filter_factory: None
+2021/03/14-07:41:34.739021 7f36a9a7ba80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:41:34.739022 7f36a9a7ba80 Options.table_factory: BlockBasedTable
+2021/03/14-07:41:34.739039 7f36a9a7ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2c6e800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c53f00
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:41:34.739040 7f36a9a7ba80 Options.write_buffer_size: 134217728
+2021/03/14-07:41:34.739041 7f36a9a7ba80 Options.max_write_buffer_number: 6
+2021/03/14-07:41:34.739041 7f36a9a7ba80 Options.compression[0]: NoCompression
+2021/03/14-07:41:34.739042 7f36a9a7ba80 Options.compression[1]: NoCompression
+2021/03/14-07:41:34.739043 7f36a9a7ba80 Options.compression[2]: Snappy
+2021/03/14-07:41:34.739043 7f36a9a7ba80 Options.compression[3]: Snappy
+2021/03/14-07:41:34.739044 7f36a9a7ba80 Options.compression[4]: Snappy
+2021/03/14-07:41:34.739044 7f36a9a7ba80 Options.compression[5]: Snappy
+2021/03/14-07:41:34.739045 7f36a9a7ba80 Options.compression[6]: Snappy
+2021/03/14-07:41:34.739046 7f36a9a7ba80 Options.bottommost_compression: Disabled
+2021/03/14-07:41:34.739047 7f36a9a7ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:41:34.739047 7f36a9a7ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:41:34.739048 7f36a9a7ba80 Options.num_levels: 7
+2021/03/14-07:41:34.739048 7f36a9a7ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:41:34.739049 7f36a9a7ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:41:34.739050 7f36a9a7ba80 Options.compression_opts.window_bits: -14
+2021/03/14-07:41:34.739050 7f36a9a7ba80 Options.compression_opts.level: -1
+2021/03/14-07:41:34.739051 7f36a9a7ba80 Options.compression_opts.strategy: 0
+2021/03/14-07:41:34.739052 7f36a9a7ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:41:34.739052 7f36a9a7ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:41:34.739053 7f36a9a7ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:41:34.739054 7f36a9a7ba80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:41:34.739054 7f36a9a7ba80 Options.target_file_size_base: 67108864
+2021/03/14-07:41:34.739055 7f36a9a7ba80 Options.target_file_size_multiplier: 1
+2021/03/14-07:41:34.739055 7f36a9a7ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:41:34.739056 7f36a9a7ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:41:34.739057 7f36a9a7ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:41:34.739058 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:41:34.739066 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:41:34.739067 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:41:34.739068 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:41:34.739068 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:41:34.739069 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:41:34.739070 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:41:34.739070 7f36a9a7ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:41:34.739071 7f36a9a7ba80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:41:34.739071 7f36a9a7ba80 Options.arena_block_size: 16777216
+2021/03/14-07:41:34.739072 7f36a9a7ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:41:34.739073 7f36a9a7ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:41:34.739073 7f36a9a7ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:41:34.739074 7f36a9a7ba80 Options.disable_auto_compactions: 0
+2021/03/14-07:41:34.739076 7f36a9a7ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:41:34.739077 7f36a9a7ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:41:34.739077 7f36a9a7ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:41:34.739078 7f36a9a7ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:41:34.739078 7f36a9a7ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:41:34.739079 7f36a9a7ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:41:34.739080 7f36a9a7ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:41:34.739081 7f36a9a7ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:41:34.739081 7f36a9a7ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:41:34.739082 7f36a9a7ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:41:34.739082 7f36a9a7ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:41:34.739083 7f36a9a7ba80 Options.table_properties_collectors:
+2021/03/14-07:41:34.739084 7f36a9a7ba80 Options.inplace_update_support: 0
+2021/03/14-07:41:34.739084 7f36a9a7ba80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:41:34.739085 7f36a9a7ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:41:34.739086 7f36a9a7ba80 Options.memtable_huge_page_size: 0
+2021/03/14-07:41:34.739086 7f36a9a7ba80 Options.bloom_locality: 0
+2021/03/14-07:41:34.739087 7f36a9a7ba80 Options.max_successive_merges: 0
+2021/03/14-07:41:34.739087 7f36a9a7ba80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:41:34.739088 7f36a9a7ba80 Options.paranoid_file_checks: 0
+2021/03/14-07:41:34.739089 7f36a9a7ba80 Options.force_consistency_checks: 0
+2021/03/14-07:41:34.739089 7f36a9a7ba80 Options.report_bg_io_stats: 0
+2021/03/14-07:41:34.739542 7f36a9a7ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:41:34.739545 7f36a9a7ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:41:34.739727 7f36a9a7ba80 EVENT_LOG_v1 {"time_micros": 1615704094739713, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:41:34.739734 7f36a9a7ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:41:35.435796 7f36a9a7ba80 EVENT_LOG_v1 {"time_micros": 1615704095435793, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704096139376 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704096139376
new file mode 100644
index 0000000..161ac1f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704096139376
@@ -0,0 +1,186 @@
+2021/03/14-07:41:35.447961 7f36a9a7ba80 RocksDB version: 5.11.3
+2021/03/14-07:41:35.448015 7f36a9a7ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:41:35.448017 7f36a9a7ba80 Compile date Mar 13 2021
+2021/03/14-07:41:35.448022 7f36a9a7ba80 DB SUMMARY
+2021/03/14-07:41:35.448177 7f36a9a7ba80 CURRENT file: CURRENT
+2021/03/14-07:41:35.448178 7f36a9a7ba80 IDENTITY file: IDENTITY
+2021/03/14-07:41:35.448193 7f36a9a7ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:41:35.448194 7f36a9a7ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:41:35.448195 7f36a9a7ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:41:35.448200 7f36a9a7ba80 Options.error_if_exists: 0
+2021/03/14-07:41:35.448201 7f36a9a7ba80 Options.create_if_missing: 1
+2021/03/14-07:41:35.448202 7f36a9a7ba80 Options.paranoid_checks: 1
+2021/03/14-07:41:35.448202 7f36a9a7ba80 Options.env: 0x7f36aa435080
+2021/03/14-07:41:35.448203 7f36a9a7ba80 Options.info_log: 0x2c76f60
+2021/03/14-07:41:35.448204 7f36a9a7ba80 Options.max_file_opening_threads: 16
+2021/03/14-07:41:35.448204 7f36a9a7ba80 Options.statistics: (nil)
+2021/03/14-07:41:35.448205 7f36a9a7ba80 Options.use_fsync: 0
+2021/03/14-07:41:35.448205 7f36a9a7ba80 Options.max_log_file_size: 0
+2021/03/14-07:41:35.448206 7f36a9a7ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:41:35.448207 7f36a9a7ba80 Options.log_file_time_to_roll: 0
+2021/03/14-07:41:35.448207 7f36a9a7ba80 Options.keep_log_file_num: 1000
+2021/03/14-07:41:35.448208 7f36a9a7ba80 Options.recycle_log_file_num: 0
+2021/03/14-07:41:35.448208 7f36a9a7ba80 Options.allow_fallocate: 1
+2021/03/14-07:41:35.448209 7f36a9a7ba80 Options.allow_mmap_reads: 0
+2021/03/14-07:41:35.448210 7f36a9a7ba80 Options.allow_mmap_writes: 0
+2021/03/14-07:41:35.448210 7f36a9a7ba80 Options.use_direct_reads: 0
+2021/03/14-07:41:35.448211 7f36a9a7ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:41:35.448211 7f36a9a7ba80 Options.create_missing_column_families: 0
+2021/03/14-07:41:35.448212 7f36a9a7ba80 Options.db_log_dir:
+2021/03/14-07:41:35.448212 7f36a9a7ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:41:35.448213 7f36a9a7ba80 Options.table_cache_numshardbits: 6
+2021/03/14-07:41:35.448213 7f36a9a7ba80 Options.max_subcompactions: 1
+2021/03/14-07:41:35.448214 7f36a9a7ba80 Options.max_background_flushes: -1
+2021/03/14-07:41:35.448215 7f36a9a7ba80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:41:35.448215 7f36a9a7ba80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:41:35.448216 7f36a9a7ba80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:41:35.448216 7f36a9a7ba80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:41:35.448217 7f36a9a7ba80 Options.advise_random_on_open: 1
+2021/03/14-07:41:35.448218 7f36a9a7ba80 Options.db_write_buffer_size: 0
+2021/03/14-07:41:35.448218 7f36a9a7ba80 Options.write_buffer_manager: 0x2c5ee70
+2021/03/14-07:41:35.448219 7f36a9a7ba80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:41:35.448219 7f36a9a7ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:41:35.448220 7f36a9a7ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:41:35.448220 7f36a9a7ba80 Options.use_adaptive_mutex: 0
+2021/03/14-07:41:35.448221 7f36a9a7ba80 Options.rate_limiter: (nil)
+2021/03/14-07:41:35.448222 7f36a9a7ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:41:35.448230 7f36a9a7ba80 Options.wal_recovery_mode: 2
+2021/03/14-07:41:35.448231 7f36a9a7ba80 Options.enable_thread_tracking: 0
+2021/03/14-07:41:35.448231 7f36a9a7ba80 Options.enable_pipelined_write: 0
+2021/03/14-07:41:35.448232 7f36a9a7ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:41:35.448232 7f36a9a7ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:41:35.448233 7f36a9a7ba80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:41:35.448234 7f36a9a7ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:41:35.448234 7f36a9a7ba80 Options.row_cache: None
+2021/03/14-07:41:35.448235 7f36a9a7ba80 Options.wal_filter: None
+2021/03/14-07:41:35.448235 7f36a9a7ba80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:41:35.448236 7f36a9a7ba80 Options.allow_ingest_behind: 0
+2021/03/14-07:41:35.448237 7f36a9a7ba80 Options.preserve_deletes: 0
+2021/03/14-07:41:35.448237 7f36a9a7ba80 Options.two_write_queues: 0
+2021/03/14-07:41:35.448250 7f36a9a7ba80 Options.manual_wal_flush: 0
+2021/03/14-07:41:35.448251 7f36a9a7ba80 Options.max_background_jobs: 16
+2021/03/14-07:41:35.448252 7f36a9a7ba80 Options.max_background_compactions: -1
+2021/03/14-07:41:35.448252 7f36a9a7ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:41:35.448253 7f36a9a7ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:41:35.448253 7f36a9a7ba80 Options.delayed_write_rate : 16777216
+2021/03/14-07:41:35.448254 7f36a9a7ba80 Options.max_total_wal_size: 0
+2021/03/14-07:41:35.448255 7f36a9a7ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:41:35.448255 7f36a9a7ba80 Options.stats_dump_period_sec: 600
+2021/03/14-07:41:35.448256 7f36a9a7ba80 Options.max_open_files: -1
+2021/03/14-07:41:35.448256 7f36a9a7ba80 Options.bytes_per_sync: 0
+2021/03/14-07:41:35.448257 7f36a9a7ba80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:41:35.448257 7f36a9a7ba80 Options.compaction_readahead_size: 0
+2021/03/14-07:41:35.448258 7f36a9a7ba80 Compression algorithms supported:
+2021/03/14-07:41:35.448259 7f36a9a7ba80 Snappy supported: 1
+2021/03/14-07:41:35.448259 7f36a9a7ba80 Zlib supported: 1
+2021/03/14-07:41:35.448260 7f36a9a7ba80 Bzip supported: 1
+2021/03/14-07:41:35.448260 7f36a9a7ba80 LZ4 supported: 1
+2021/03/14-07:41:35.448261 7f36a9a7ba80 ZSTDNotFinal supported: 1
+2021/03/14-07:41:35.448265 7f36a9a7ba80 ZSTD supported: 1
+2021/03/14-07:41:35.448268 7f36a9a7ba80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:41:35.448270 7f36a9a7ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:41:35.448365 7f36a9a7ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:41:35.448417 7f36a9a7ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:41:35.448419 7f36a9a7ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:41:35.448420 7f36a9a7ba80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:41:35.448420 7f36a9a7ba80 Options.compaction_filter: None
+2021/03/14-07:41:35.448421 7f36a9a7ba80 Options.compaction_filter_factory: None
+2021/03/14-07:41:35.448421 7f36a9a7ba80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:41:35.448422 7f36a9a7ba80 Options.table_factory: BlockBasedTable
+2021/03/14-07:41:35.448437 7f36a9a7ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2c6e800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c53f00
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:41:35.448438 7f36a9a7ba80 Options.write_buffer_size: 134217728
+2021/03/14-07:41:35.448438 7f36a9a7ba80 Options.max_write_buffer_number: 6
+2021/03/14-07:41:35.448439 7f36a9a7ba80 Options.compression[0]: NoCompression
+2021/03/14-07:41:35.448440 7f36a9a7ba80 Options.compression[1]: NoCompression
+2021/03/14-07:41:35.448440 7f36a9a7ba80 Options.compression[2]: Snappy
+2021/03/14-07:41:35.448441 7f36a9a7ba80 Options.compression[3]: Snappy
+2021/03/14-07:41:35.448441 7f36a9a7ba80 Options.compression[4]: Snappy
+2021/03/14-07:41:35.448442 7f36a9a7ba80 Options.compression[5]: Snappy
+2021/03/14-07:41:35.448443 7f36a9a7ba80 Options.compression[6]: Snappy
+2021/03/14-07:41:35.448443 7f36a9a7ba80 Options.bottommost_compression: Disabled
+2021/03/14-07:41:35.448444 7f36a9a7ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:41:35.448444 7f36a9a7ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:41:35.448445 7f36a9a7ba80 Options.num_levels: 7
+2021/03/14-07:41:35.448446 7f36a9a7ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:41:35.448446 7f36a9a7ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:41:35.448447 7f36a9a7ba80 Options.compression_opts.window_bits: -14
+2021/03/14-07:41:35.448447 7f36a9a7ba80 Options.compression_opts.level: -1
+2021/03/14-07:41:35.448448 7f36a9a7ba80 Options.compression_opts.strategy: 0
+2021/03/14-07:41:35.448449 7f36a9a7ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:41:35.448449 7f36a9a7ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:41:35.448450 7f36a9a7ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:41:35.448450 7f36a9a7ba80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:41:35.448451 7f36a9a7ba80 Options.target_file_size_base: 67108864
+2021/03/14-07:41:35.448452 7f36a9a7ba80 Options.target_file_size_multiplier: 1
+2021/03/14-07:41:35.448452 7f36a9a7ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:41:35.448453 7f36a9a7ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:41:35.448454 7f36a9a7ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:41:35.448455 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:41:35.448463 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:41:35.448463 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:41:35.448464 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:41:35.448464 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:41:35.448465 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:41:35.448466 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:41:35.448466 7f36a9a7ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:41:35.448467 7f36a9a7ba80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:41:35.448467 7f36a9a7ba80 Options.arena_block_size: 16777216
+2021/03/14-07:41:35.448468 7f36a9a7ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:41:35.448469 7f36a9a7ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:41:35.448469 7f36a9a7ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:41:35.448470 7f36a9a7ba80 Options.disable_auto_compactions: 0
+2021/03/14-07:41:35.448471 7f36a9a7ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:41:35.448472 7f36a9a7ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:41:35.448473 7f36a9a7ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:41:35.448473 7f36a9a7ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:41:35.448474 7f36a9a7ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:41:35.448474 7f36a9a7ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:41:35.448475 7f36a9a7ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:41:35.448476 7f36a9a7ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:41:35.448476 7f36a9a7ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:41:35.448477 7f36a9a7ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:41:35.448477 7f36a9a7ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:41:35.448478 7f36a9a7ba80 Options.table_properties_collectors:
+2021/03/14-07:41:35.448479 7f36a9a7ba80 Options.inplace_update_support: 0
+2021/03/14-07:41:35.448479 7f36a9a7ba80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:41:35.448480 7f36a9a7ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:41:35.448481 7f36a9a7ba80 Options.memtable_huge_page_size: 0
+2021/03/14-07:41:35.448481 7f36a9a7ba80 Options.bloom_locality: 0
+2021/03/14-07:41:35.448482 7f36a9a7ba80 Options.max_successive_merges: 0
+2021/03/14-07:41:35.448482 7f36a9a7ba80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:41:35.448483 7f36a9a7ba80 Options.paranoid_file_checks: 0
+2021/03/14-07:41:35.448483 7f36a9a7ba80 Options.force_consistency_checks: 0
+2021/03/14-07:41:35.448484 7f36a9a7ba80 Options.report_bg_io_stats: 0
+2021/03/14-07:41:35.448871 7f36a9a7ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:41:35.448873 7f36a9a7ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:41:35.449024 7f36a9a7ba80 EVENT_LOG_v1 {"time_micros": 1615704095449014, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:41:35.449029 7f36a9a7ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:41:36.127450 7f36a9a7ba80 EVENT_LOG_v1 {"time_micros": 1615704096127447, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704096819127 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704096819127
new file mode 100644
index 0000000..b7703f8
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704096819127
@@ -0,0 +1,186 @@
+2021/03/14-07:41:36.139791 7f36a9a7ba80 RocksDB version: 5.11.3
+2021/03/14-07:41:36.139844 7f36a9a7ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:41:36.139845 7f36a9a7ba80 Compile date Mar 13 2021
+2021/03/14-07:41:36.139850 7f36a9a7ba80 DB SUMMARY
+2021/03/14-07:41:36.139999 7f36a9a7ba80 CURRENT file: CURRENT
+2021/03/14-07:41:36.140000 7f36a9a7ba80 IDENTITY file: IDENTITY
+2021/03/14-07:41:36.140015 7f36a9a7ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:41:36.140016 7f36a9a7ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:41:36.140017 7f36a9a7ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:41:36.140023 7f36a9a7ba80 Options.error_if_exists: 0
+2021/03/14-07:41:36.140023 7f36a9a7ba80 Options.create_if_missing: 1
+2021/03/14-07:41:36.140024 7f36a9a7ba80 Options.paranoid_checks: 1
+2021/03/14-07:41:36.140025 7f36a9a7ba80 Options.env: 0x7f36aa435080
+2021/03/14-07:41:36.140025 7f36a9a7ba80 Options.info_log: 0x2c76f60
+2021/03/14-07:41:36.140026 7f36a9a7ba80 Options.max_file_opening_threads: 16
+2021/03/14-07:41:36.140026 7f36a9a7ba80 Options.statistics: (nil)
+2021/03/14-07:41:36.140027 7f36a9a7ba80 Options.use_fsync: 0
+2021/03/14-07:41:36.140028 7f36a9a7ba80 Options.max_log_file_size: 0
+2021/03/14-07:41:36.140028 7f36a9a7ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:41:36.140029 7f36a9a7ba80 Options.log_file_time_to_roll: 0
+2021/03/14-07:41:36.140029 7f36a9a7ba80 Options.keep_log_file_num: 1000
+2021/03/14-07:41:36.140030 7f36a9a7ba80 Options.recycle_log_file_num: 0
+2021/03/14-07:41:36.140030 7f36a9a7ba80 Options.allow_fallocate: 1
+2021/03/14-07:41:36.140031 7f36a9a7ba80 Options.allow_mmap_reads: 0
+2021/03/14-07:41:36.140032 7f36a9a7ba80 Options.allow_mmap_writes: 0
+2021/03/14-07:41:36.140032 7f36a9a7ba80 Options.use_direct_reads: 0
+2021/03/14-07:41:36.140033 7f36a9a7ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:41:36.140033 7f36a9a7ba80 Options.create_missing_column_families: 0
+2021/03/14-07:41:36.140034 7f36a9a7ba80 Options.db_log_dir:
+2021/03/14-07:41:36.140034 7f36a9a7ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:41:36.140035 7f36a9a7ba80 Options.table_cache_numshardbits: 6
+2021/03/14-07:41:36.140035 7f36a9a7ba80 Options.max_subcompactions: 1
+2021/03/14-07:41:36.140036 7f36a9a7ba80 Options.max_background_flushes: -1
+2021/03/14-07:41:36.140036 7f36a9a7ba80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:41:36.140037 7f36a9a7ba80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:41:36.140038 7f36a9a7ba80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:41:36.140038 7f36a9a7ba80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:41:36.140039 7f36a9a7ba80 Options.advise_random_on_open: 1
+2021/03/14-07:41:36.140039 7f36a9a7ba80 Options.db_write_buffer_size: 0
+2021/03/14-07:41:36.140040 7f36a9a7ba80 Options.write_buffer_manager: 0x2c5ee70
+2021/03/14-07:41:36.140040 7f36a9a7ba80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:41:36.140041 7f36a9a7ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:41:36.140041 7f36a9a7ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:41:36.140042 7f36a9a7ba80 Options.use_adaptive_mutex: 0
+2021/03/14-07:41:36.140042 7f36a9a7ba80 Options.rate_limiter: (nil)
+2021/03/14-07:41:36.140044 7f36a9a7ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:41:36.140051 7f36a9a7ba80 Options.wal_recovery_mode: 2
+2021/03/14-07:41:36.140052 7f36a9a7ba80 Options.enable_thread_tracking: 0
+2021/03/14-07:41:36.140053 7f36a9a7ba80 Options.enable_pipelined_write: 0
+2021/03/14-07:41:36.140053 7f36a9a7ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:41:36.140054 7f36a9a7ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:41:36.140054 7f36a9a7ba80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:41:36.140055 7f36a9a7ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:41:36.140055 7f36a9a7ba80 Options.row_cache: None
+2021/03/14-07:41:36.140056 7f36a9a7ba80 Options.wal_filter: None
+2021/03/14-07:41:36.140056 7f36a9a7ba80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:41:36.140057 7f36a9a7ba80 Options.allow_ingest_behind: 0
+2021/03/14-07:41:36.140058 7f36a9a7ba80 Options.preserve_deletes: 0
+2021/03/14-07:41:36.140058 7f36a9a7ba80 Options.two_write_queues: 0
+2021/03/14-07:41:36.140059 7f36a9a7ba80 Options.manual_wal_flush: 0
+2021/03/14-07:41:36.140060 7f36a9a7ba80 Options.max_background_jobs: 16
+2021/03/14-07:41:36.140060 7f36a9a7ba80 Options.max_background_compactions: -1
+2021/03/14-07:41:36.140061 7f36a9a7ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:41:36.140061 7f36a9a7ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:41:36.140062 7f36a9a7ba80 Options.delayed_write_rate : 16777216
+2021/03/14-07:41:36.140062 7f36a9a7ba80 Options.max_total_wal_size: 0
+2021/03/14-07:41:36.140063 7f36a9a7ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:41:36.140064 7f36a9a7ba80 Options.stats_dump_period_sec: 600
+2021/03/14-07:41:36.140064 7f36a9a7ba80 Options.max_open_files: -1
+2021/03/14-07:41:36.140065 7f36a9a7ba80 Options.bytes_per_sync: 0
+2021/03/14-07:41:36.140065 7f36a9a7ba80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:41:36.140066 7f36a9a7ba80 Options.compaction_readahead_size: 0
+2021/03/14-07:41:36.140066 7f36a9a7ba80 Compression algorithms supported:
+2021/03/14-07:41:36.140067 7f36a9a7ba80 Snappy supported: 1
+2021/03/14-07:41:36.140067 7f36a9a7ba80 Zlib supported: 1
+2021/03/14-07:41:36.140068 7f36a9a7ba80 Bzip supported: 1
+2021/03/14-07:41:36.140069 7f36a9a7ba80 LZ4 supported: 1
+2021/03/14-07:41:36.140069 7f36a9a7ba80 ZSTDNotFinal supported: 1
+2021/03/14-07:41:36.140073 7f36a9a7ba80 ZSTD supported: 1
+2021/03/14-07:41:36.140076 7f36a9a7ba80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:41:36.140077 7f36a9a7ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:41:36.140167 7f36a9a7ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:41:36.140219 7f36a9a7ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:41:36.140220 7f36a9a7ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:41:36.140221 7f36a9a7ba80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:41:36.140222 7f36a9a7ba80 Options.compaction_filter: None
+2021/03/14-07:41:36.140222 7f36a9a7ba80 Options.compaction_filter_factory: None
+2021/03/14-07:41:36.140223 7f36a9a7ba80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:41:36.140224 7f36a9a7ba80 Options.table_factory: BlockBasedTable
+2021/03/14-07:41:36.140245 7f36a9a7ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2c6e800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c53f00
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:41:36.140246 7f36a9a7ba80 Options.write_buffer_size: 134217728
+2021/03/14-07:41:36.140247 7f36a9a7ba80 Options.max_write_buffer_number: 6
+2021/03/14-07:41:36.140248 7f36a9a7ba80 Options.compression[0]: NoCompression
+2021/03/14-07:41:36.140249 7f36a9a7ba80 Options.compression[1]: NoCompression
+2021/03/14-07:41:36.140250 7f36a9a7ba80 Options.compression[2]: Snappy
+2021/03/14-07:41:36.140251 7f36a9a7ba80 Options.compression[3]: Snappy
+2021/03/14-07:41:36.140252 7f36a9a7ba80 Options.compression[4]: Snappy
+2021/03/14-07:41:36.140253 7f36a9a7ba80 Options.compression[5]: Snappy
+2021/03/14-07:41:36.140253 7f36a9a7ba80 Options.compression[6]: Snappy
+2021/03/14-07:41:36.140254 7f36a9a7ba80 Options.bottommost_compression: Disabled
+2021/03/14-07:41:36.140255 7f36a9a7ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:41:36.140256 7f36a9a7ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:41:36.140257 7f36a9a7ba80 Options.num_levels: 7
+2021/03/14-07:41:36.140258 7f36a9a7ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:41:36.140276 7f36a9a7ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:41:36.140277 7f36a9a7ba80 Options.compression_opts.window_bits: -14
+2021/03/14-07:41:36.140278 7f36a9a7ba80 Options.compression_opts.level: -1
+2021/03/14-07:41:36.140279 7f36a9a7ba80 Options.compression_opts.strategy: 0
+2021/03/14-07:41:36.140279 7f36a9a7ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:41:36.140280 7f36a9a7ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:41:36.140280 7f36a9a7ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:41:36.140281 7f36a9a7ba80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:41:36.140282 7f36a9a7ba80 Options.target_file_size_base: 67108864
+2021/03/14-07:41:36.140282 7f36a9a7ba80 Options.target_file_size_multiplier: 1
+2021/03/14-07:41:36.140283 7f36a9a7ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:41:36.140283 7f36a9a7ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:41:36.140284 7f36a9a7ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:41:36.140286 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:41:36.140294 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:41:36.140295 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:41:36.140296 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:41:36.140311 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:41:36.140312 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:41:36.140312 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:41:36.140313 7f36a9a7ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:41:36.140313 7f36a9a7ba80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:41:36.140314 7f36a9a7ba80 Options.arena_block_size: 16777216
+2021/03/14-07:41:36.140315 7f36a9a7ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:41:36.140315 7f36a9a7ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:41:36.140316 7f36a9a7ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:41:36.140316 7f36a9a7ba80 Options.disable_auto_compactions: 0
+2021/03/14-07:41:36.140318 7f36a9a7ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:41:36.140319 7f36a9a7ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:41:36.140319 7f36a9a7ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:41:36.140320 7f36a9a7ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:41:36.140320 7f36a9a7ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:41:36.140321 7f36a9a7ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:41:36.140321 7f36a9a7ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:41:36.140323 7f36a9a7ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:41:36.140323 7f36a9a7ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:41:36.140324 7f36a9a7ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:41:36.140324 7f36a9a7ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:41:36.140325 7f36a9a7ba80 Options.table_properties_collectors:
+2021/03/14-07:41:36.140325 7f36a9a7ba80 Options.inplace_update_support: 0
+2021/03/14-07:41:36.140326 7f36a9a7ba80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:41:36.140326 7f36a9a7ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:41:36.140327 7f36a9a7ba80 Options.memtable_huge_page_size: 0
+2021/03/14-07:41:36.140328 7f36a9a7ba80 Options.bloom_locality: 0
+2021/03/14-07:41:36.140328 7f36a9a7ba80 Options.max_successive_merges: 0
+2021/03/14-07:41:36.140329 7f36a9a7ba80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:41:36.140329 7f36a9a7ba80 Options.paranoid_file_checks: 0
+2021/03/14-07:41:36.140330 7f36a9a7ba80 Options.force_consistency_checks: 0
+2021/03/14-07:41:36.140330 7f36a9a7ba80 Options.report_bg_io_stats: 0
+2021/03/14-07:41:36.140836 7f36a9a7ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:41:36.140839 7f36a9a7ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:41:36.140987 7f36a9a7ba80 EVENT_LOG_v1 {"time_micros": 1615704096140977, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:41:36.140993 7f36a9a7ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:41:36.807121 7f36a9a7ba80 EVENT_LOG_v1 {"time_micros": 1615704096807117, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704397456444 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704397456444
new file mode 100644
index 0000000..7a482a2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704397456444
@@ -0,0 +1,186 @@
+2021/03/14-07:41:36.819537 7f36a9a7ba80 RocksDB version: 5.11.3
+2021/03/14-07:41:36.819591 7f36a9a7ba80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:41:36.819593 7f36a9a7ba80 Compile date Mar 13 2021
+2021/03/14-07:41:36.819597 7f36a9a7ba80 DB SUMMARY
+2021/03/14-07:41:36.819751 7f36a9a7ba80 CURRENT file: CURRENT
+2021/03/14-07:41:36.819752 7f36a9a7ba80 IDENTITY file: IDENTITY
+2021/03/14-07:41:36.819768 7f36a9a7ba80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:41:36.819769 7f36a9a7ba80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:41:36.819770 7f36a9a7ba80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:41:36.819775 7f36a9a7ba80 Options.error_if_exists: 0
+2021/03/14-07:41:36.819776 7f36a9a7ba80 Options.create_if_missing: 1
+2021/03/14-07:41:36.819777 7f36a9a7ba80 Options.paranoid_checks: 1
+2021/03/14-07:41:36.819777 7f36a9a7ba80 Options.env: 0x7f36aa435080
+2021/03/14-07:41:36.819778 7f36a9a7ba80 Options.info_log: 0x2c76f60
+2021/03/14-07:41:36.819778 7f36a9a7ba80 Options.max_file_opening_threads: 16
+2021/03/14-07:41:36.819779 7f36a9a7ba80 Options.statistics: (nil)
+2021/03/14-07:41:36.819780 7f36a9a7ba80 Options.use_fsync: 0
+2021/03/14-07:41:36.819780 7f36a9a7ba80 Options.max_log_file_size: 0
+2021/03/14-07:41:36.819781 7f36a9a7ba80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:41:36.819781 7f36a9a7ba80 Options.log_file_time_to_roll: 0
+2021/03/14-07:41:36.819782 7f36a9a7ba80 Options.keep_log_file_num: 1000
+2021/03/14-07:41:36.819783 7f36a9a7ba80 Options.recycle_log_file_num: 0
+2021/03/14-07:41:36.819783 7f36a9a7ba80 Options.allow_fallocate: 1
+2021/03/14-07:41:36.819784 7f36a9a7ba80 Options.allow_mmap_reads: 0
+2021/03/14-07:41:36.819784 7f36a9a7ba80 Options.allow_mmap_writes: 0
+2021/03/14-07:41:36.819785 7f36a9a7ba80 Options.use_direct_reads: 0
+2021/03/14-07:41:36.819785 7f36a9a7ba80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:41:36.819786 7f36a9a7ba80 Options.create_missing_column_families: 0
+2021/03/14-07:41:36.819787 7f36a9a7ba80 Options.db_log_dir:
+2021/03/14-07:41:36.819787 7f36a9a7ba80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:41:36.819788 7f36a9a7ba80 Options.table_cache_numshardbits: 6
+2021/03/14-07:41:36.819788 7f36a9a7ba80 Options.max_subcompactions: 1
+2021/03/14-07:41:36.819789 7f36a9a7ba80 Options.max_background_flushes: -1
+2021/03/14-07:41:36.819790 7f36a9a7ba80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:41:36.819790 7f36a9a7ba80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:41:36.819791 7f36a9a7ba80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:41:36.819791 7f36a9a7ba80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:41:36.819792 7f36a9a7ba80 Options.advise_random_on_open: 1
+2021/03/14-07:41:36.819792 7f36a9a7ba80 Options.db_write_buffer_size: 0
+2021/03/14-07:41:36.819793 7f36a9a7ba80 Options.write_buffer_manager: 0x2c5ee70
+2021/03/14-07:41:36.819793 7f36a9a7ba80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:41:36.819794 7f36a9a7ba80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:41:36.819794 7f36a9a7ba80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:41:36.819795 7f36a9a7ba80 Options.use_adaptive_mutex: 0
+2021/03/14-07:41:36.819796 7f36a9a7ba80 Options.rate_limiter: (nil)
+2021/03/14-07:41:36.819797 7f36a9a7ba80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:41:36.819804 7f36a9a7ba80 Options.wal_recovery_mode: 2
+2021/03/14-07:41:36.819805 7f36a9a7ba80 Options.enable_thread_tracking: 0
+2021/03/14-07:41:36.819805 7f36a9a7ba80 Options.enable_pipelined_write: 0
+2021/03/14-07:41:36.819806 7f36a9a7ba80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:41:36.819807 7f36a9a7ba80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:41:36.819807 7f36a9a7ba80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:41:36.819808 7f36a9a7ba80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:41:36.819808 7f36a9a7ba80 Options.row_cache: None
+2021/03/14-07:41:36.819809 7f36a9a7ba80 Options.wal_filter: None
+2021/03/14-07:41:36.819810 7f36a9a7ba80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:41:36.819810 7f36a9a7ba80 Options.allow_ingest_behind: 0
+2021/03/14-07:41:36.819811 7f36a9a7ba80 Options.preserve_deletes: 0
+2021/03/14-07:41:36.819811 7f36a9a7ba80 Options.two_write_queues: 0
+2021/03/14-07:41:36.819812 7f36a9a7ba80 Options.manual_wal_flush: 0
+2021/03/14-07:41:36.819813 7f36a9a7ba80 Options.max_background_jobs: 16
+2021/03/14-07:41:36.819813 7f36a9a7ba80 Options.max_background_compactions: -1
+2021/03/14-07:41:36.819814 7f36a9a7ba80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:41:36.819814 7f36a9a7ba80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:41:36.819815 7f36a9a7ba80 Options.delayed_write_rate : 16777216
+2021/03/14-07:41:36.819816 7f36a9a7ba80 Options.max_total_wal_size: 0
+2021/03/14-07:41:36.819816 7f36a9a7ba80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:41:36.819817 7f36a9a7ba80 Options.stats_dump_period_sec: 600
+2021/03/14-07:41:36.819817 7f36a9a7ba80 Options.max_open_files: -1
+2021/03/14-07:41:36.819818 7f36a9a7ba80 Options.bytes_per_sync: 0
+2021/03/14-07:41:36.819818 7f36a9a7ba80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:41:36.819819 7f36a9a7ba80 Options.compaction_readahead_size: 0
+2021/03/14-07:41:36.819819 7f36a9a7ba80 Compression algorithms supported:
+2021/03/14-07:41:36.819820 7f36a9a7ba80 Snappy supported: 1
+2021/03/14-07:41:36.819821 7f36a9a7ba80 Zlib supported: 1
+2021/03/14-07:41:36.819821 7f36a9a7ba80 Bzip supported: 1
+2021/03/14-07:41:36.819822 7f36a9a7ba80 LZ4 supported: 1
+2021/03/14-07:41:36.819822 7f36a9a7ba80 ZSTDNotFinal supported: 1
+2021/03/14-07:41:36.819826 7f36a9a7ba80 ZSTD supported: 1
+2021/03/14-07:41:36.819830 7f36a9a7ba80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:41:36.819831 7f36a9a7ba80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:41:36.819922 7f36a9a7ba80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:41:36.819974 7f36a9a7ba80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:41:36.819976 7f36a9a7ba80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:41:36.819977 7f36a9a7ba80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:41:36.819977 7f36a9a7ba80 Options.compaction_filter: None
+2021/03/14-07:41:36.819978 7f36a9a7ba80 Options.compaction_filter_factory: None
+2021/03/14-07:41:36.819978 7f36a9a7ba80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:41:36.819979 7f36a9a7ba80 Options.table_factory: BlockBasedTable
+2021/03/14-07:41:36.819993 7f36a9a7ba80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2c6e800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2c53f00
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:41:36.819994 7f36a9a7ba80 Options.write_buffer_size: 134217728
+2021/03/14-07:41:36.819995 7f36a9a7ba80 Options.max_write_buffer_number: 6
+2021/03/14-07:41:36.819995 7f36a9a7ba80 Options.compression[0]: NoCompression
+2021/03/14-07:41:36.819996 7f36a9a7ba80 Options.compression[1]: NoCompression
+2021/03/14-07:41:36.819997 7f36a9a7ba80 Options.compression[2]: Snappy
+2021/03/14-07:41:36.819997 7f36a9a7ba80 Options.compression[3]: Snappy
+2021/03/14-07:41:36.819998 7f36a9a7ba80 Options.compression[4]: Snappy
+2021/03/14-07:41:36.819998 7f36a9a7ba80 Options.compression[5]: Snappy
+2021/03/14-07:41:36.819999 7f36a9a7ba80 Options.compression[6]: Snappy
+2021/03/14-07:41:36.820000 7f36a9a7ba80 Options.bottommost_compression: Disabled
+2021/03/14-07:41:36.820001 7f36a9a7ba80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:41:36.820001 7f36a9a7ba80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:41:36.820002 7f36a9a7ba80 Options.num_levels: 7
+2021/03/14-07:41:36.820002 7f36a9a7ba80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:41:36.820003 7f36a9a7ba80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:41:36.820003 7f36a9a7ba80 Options.compression_opts.window_bits: -14
+2021/03/14-07:41:36.820004 7f36a9a7ba80 Options.compression_opts.level: -1
+2021/03/14-07:41:36.820004 7f36a9a7ba80 Options.compression_opts.strategy: 0
+2021/03/14-07:41:36.820005 7f36a9a7ba80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:41:36.820006 7f36a9a7ba80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:41:36.820006 7f36a9a7ba80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:41:36.820007 7f36a9a7ba80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:41:36.820007 7f36a9a7ba80 Options.target_file_size_base: 67108864
+2021/03/14-07:41:36.820008 7f36a9a7ba80 Options.target_file_size_multiplier: 1
+2021/03/14-07:41:36.820008 7f36a9a7ba80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:41:36.820009 7f36a9a7ba80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:41:36.820010 7f36a9a7ba80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:41:36.820011 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:41:36.820018 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:41:36.820019 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:41:36.820020 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:41:36.820020 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:41:36.820021 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:41:36.820021 7f36a9a7ba80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:41:36.820022 7f36a9a7ba80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:41:36.820022 7f36a9a7ba80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:41:36.820023 7f36a9a7ba80 Options.arena_block_size: 16777216
+2021/03/14-07:41:36.820024 7f36a9a7ba80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:41:36.820024 7f36a9a7ba80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:41:36.820025 7f36a9a7ba80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:41:36.820026 7f36a9a7ba80 Options.disable_auto_compactions: 0
+2021/03/14-07:41:36.820027 7f36a9a7ba80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:41:36.820028 7f36a9a7ba80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:41:36.820028 7f36a9a7ba80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:41:36.820029 7f36a9a7ba80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:41:36.820030 7f36a9a7ba80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:41:36.820030 7f36a9a7ba80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:41:36.820031 7f36a9a7ba80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:41:36.820032 7f36a9a7ba80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:41:36.820032 7f36a9a7ba80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:41:36.820033 7f36a9a7ba80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:41:36.820033 7f36a9a7ba80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:41:36.820034 7f36a9a7ba80 Options.table_properties_collectors:
+2021/03/14-07:41:36.820034 7f36a9a7ba80 Options.inplace_update_support: 0
+2021/03/14-07:41:36.820035 7f36a9a7ba80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:41:36.820036 7f36a9a7ba80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:41:36.820036 7f36a9a7ba80 Options.memtable_huge_page_size: 0
+2021/03/14-07:41:36.820037 7f36a9a7ba80 Options.bloom_locality: 0
+2021/03/14-07:41:36.820038 7f36a9a7ba80 Options.max_successive_merges: 0
+2021/03/14-07:41:36.820038 7f36a9a7ba80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:41:36.820039 7f36a9a7ba80 Options.paranoid_file_checks: 0
+2021/03/14-07:41:36.820039 7f36a9a7ba80 Options.force_consistency_checks: 0
+2021/03/14-07:41:36.820040 7f36a9a7ba80 Options.report_bg_io_stats: 0
+2021/03/14-07:41:36.820415 7f36a9a7ba80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:41:36.820417 7f36a9a7ba80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:41:36.820571 7f36a9a7ba80 EVENT_LOG_v1 {"time_micros": 1615704096820561, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:41:36.820577 7f36a9a7ba80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:41:37.505640 7f36a9a7ba80 EVENT_LOG_v1 {"time_micros": 1615704097505636, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704398270649 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704398270649
new file mode 100644
index 0000000..9b7ea43
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704398270649
@@ -0,0 +1,186 @@
+2021/03/14-07:46:37.457059 7f954e834a80 RocksDB version: 5.11.3
+2021/03/14-07:46:37.457157 7f954e834a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:46:37.457159 7f954e834a80 Compile date Mar 13 2021
+2021/03/14-07:46:37.457164 7f954e834a80 DB SUMMARY
+2021/03/14-07:46:37.457422 7f954e834a80 CURRENT file: CURRENT
+2021/03/14-07:46:37.457424 7f954e834a80 IDENTITY file: IDENTITY
+2021/03/14-07:46:37.457441 7f954e834a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:46:37.457442 7f954e834a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:46:37.457443 7f954e834a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:46:37.457450 7f954e834a80 Options.error_if_exists: 0
+2021/03/14-07:46:37.457451 7f954e834a80 Options.create_if_missing: 1
+2021/03/14-07:46:37.457451 7f954e834a80 Options.paranoid_checks: 1
+2021/03/14-07:46:37.457452 7f954e834a80 Options.env: 0x7f954f1ee080
+2021/03/14-07:46:37.457453 7f954e834a80 Options.info_log: 0x23aefa0
+2021/03/14-07:46:37.457453 7f954e834a80 Options.max_file_opening_threads: 16
+2021/03/14-07:46:37.457454 7f954e834a80 Options.statistics: (nil)
+2021/03/14-07:46:37.457455 7f954e834a80 Options.use_fsync: 0
+2021/03/14-07:46:37.457456 7f954e834a80 Options.max_log_file_size: 0
+2021/03/14-07:46:37.457456 7f954e834a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:46:37.457457 7f954e834a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:46:37.457457 7f954e834a80 Options.keep_log_file_num: 1000
+2021/03/14-07:46:37.457458 7f954e834a80 Options.recycle_log_file_num: 0
+2021/03/14-07:46:37.457459 7f954e834a80 Options.allow_fallocate: 1
+2021/03/14-07:46:37.457459 7f954e834a80 Options.allow_mmap_reads: 0
+2021/03/14-07:46:37.457460 7f954e834a80 Options.allow_mmap_writes: 0
+2021/03/14-07:46:37.457461 7f954e834a80 Options.use_direct_reads: 0
+2021/03/14-07:46:37.457461 7f954e834a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:46:37.457462 7f954e834a80 Options.create_missing_column_families: 0
+2021/03/14-07:46:37.457462 7f954e834a80 Options.db_log_dir:
+2021/03/14-07:46:37.457463 7f954e834a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:46:37.457464 7f954e834a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:46:37.457464 7f954e834a80 Options.max_subcompactions: 1
+2021/03/14-07:46:37.457465 7f954e834a80 Options.max_background_flushes: -1
+2021/03/14-07:46:37.457466 7f954e834a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:46:37.457466 7f954e834a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:46:37.457467 7f954e834a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:46:37.457467 7f954e834a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:46:37.457468 7f954e834a80 Options.advise_random_on_open: 1
+2021/03/14-07:46:37.457469 7f954e834a80 Options.db_write_buffer_size: 0
+2021/03/14-07:46:37.457469 7f954e834a80 Options.write_buffer_manager: 0x2396e90
+2021/03/14-07:46:37.457470 7f954e834a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:46:37.457470 7f954e834a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:46:37.457471 7f954e834a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:46:37.457472 7f954e834a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:46:37.457472 7f954e834a80 Options.rate_limiter: (nil)
+2021/03/14-07:46:37.457474 7f954e834a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:46:37.457483 7f954e834a80 Options.wal_recovery_mode: 2
+2021/03/14-07:46:37.457484 7f954e834a80 Options.enable_thread_tracking: 0
+2021/03/14-07:46:37.457485 7f954e834a80 Options.enable_pipelined_write: 0
+2021/03/14-07:46:37.457485 7f954e834a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:46:37.457486 7f954e834a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:46:37.457487 7f954e834a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:46:37.457487 7f954e834a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:46:37.457488 7f954e834a80 Options.row_cache: None
+2021/03/14-07:46:37.457488 7f954e834a80 Options.wal_filter: None
+2021/03/14-07:46:37.457489 7f954e834a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:46:37.457490 7f954e834a80 Options.allow_ingest_behind: 0
+2021/03/14-07:46:37.457490 7f954e834a80 Options.preserve_deletes: 0
+2021/03/14-07:46:37.457491 7f954e834a80 Options.two_write_queues: 0
+2021/03/14-07:46:37.457491 7f954e834a80 Options.manual_wal_flush: 0
+2021/03/14-07:46:37.457493 7f954e834a80 Options.max_background_jobs: 16
+2021/03/14-07:46:37.457493 7f954e834a80 Options.max_background_compactions: -1
+2021/03/14-07:46:37.457494 7f954e834a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:46:37.457494 7f954e834a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:46:37.457495 7f954e834a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:46:37.457496 7f954e834a80 Options.max_total_wal_size: 0
+2021/03/14-07:46:37.457496 7f954e834a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:46:37.457497 7f954e834a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:46:37.457498 7f954e834a80 Options.max_open_files: -1
+2021/03/14-07:46:37.457498 7f954e834a80 Options.bytes_per_sync: 0
+2021/03/14-07:46:37.457499 7f954e834a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:46:37.457499 7f954e834a80 Options.compaction_readahead_size: 0
+2021/03/14-07:46:37.457500 7f954e834a80 Compression algorithms supported:
+2021/03/14-07:46:37.457501 7f954e834a80 Snappy supported: 1
+2021/03/14-07:46:37.457501 7f954e834a80 Zlib supported: 1
+2021/03/14-07:46:37.457502 7f954e834a80 Bzip supported: 1
+2021/03/14-07:46:37.457502 7f954e834a80 LZ4 supported: 1
+2021/03/14-07:46:37.457503 7f954e834a80 ZSTDNotFinal supported: 1
+2021/03/14-07:46:37.457507 7f954e834a80 ZSTD supported: 1
+2021/03/14-07:46:37.457511 7f954e834a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:46:37.457512 7f954e834a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:46:37.457627 7f954e834a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:46:37.457692 7f954e834a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:46:37.457694 7f954e834a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:46:37.457695 7f954e834a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:46:37.457696 7f954e834a80 Options.compaction_filter: None
+2021/03/14-07:46:37.457697 7f954e834a80 Options.compaction_filter_factory: None
+2021/03/14-07:46:37.457697 7f954e834a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:46:37.457698 7f954e834a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:46:37.457715 7f954e834a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x23a6820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x238bf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:46:37.457716 7f954e834a80 Options.write_buffer_size: 134217728
+2021/03/14-07:46:37.457717 7f954e834a80 Options.max_write_buffer_number: 6
+2021/03/14-07:46:37.457718 7f954e834a80 Options.compression[0]: NoCompression
+2021/03/14-07:46:37.457719 7f954e834a80 Options.compression[1]: NoCompression
+2021/03/14-07:46:37.457719 7f954e834a80 Options.compression[2]: Snappy
+2021/03/14-07:46:37.457720 7f954e834a80 Options.compression[3]: Snappy
+2021/03/14-07:46:37.457721 7f954e834a80 Options.compression[4]: Snappy
+2021/03/14-07:46:37.457721 7f954e834a80 Options.compression[5]: Snappy
+2021/03/14-07:46:37.457722 7f954e834a80 Options.compression[6]: Snappy
+2021/03/14-07:46:37.457722 7f954e834a80 Options.bottommost_compression: Disabled
+2021/03/14-07:46:37.457723 7f954e834a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:46:37.457724 7f954e834a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:46:37.457724 7f954e834a80 Options.num_levels: 7
+2021/03/14-07:46:37.457725 7f954e834a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:46:37.457726 7f954e834a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:46:37.457726 7f954e834a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:46:37.457727 7f954e834a80 Options.compression_opts.level: -1
+2021/03/14-07:46:37.457728 7f954e834a80 Options.compression_opts.strategy: 0
+2021/03/14-07:46:37.457728 7f954e834a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:46:37.457729 7f954e834a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:46:37.457729 7f954e834a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:46:37.457730 7f954e834a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:46:37.457731 7f954e834a80 Options.target_file_size_base: 67108864
+2021/03/14-07:46:37.457731 7f954e834a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:46:37.457732 7f954e834a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:46:37.457733 7f954e834a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:46:37.457733 7f954e834a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:46:37.457735 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:46:37.457743 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:46:37.457744 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:46:37.457744 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:46:37.457745 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:46:37.457745 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:46:37.457746 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:46:37.457747 7f954e834a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:46:37.457747 7f954e834a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:46:37.457748 7f954e834a80 Options.arena_block_size: 16777216
+2021/03/14-07:46:37.457748 7f954e834a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:46:37.457749 7f954e834a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:46:37.457750 7f954e834a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:46:37.457750 7f954e834a80 Options.disable_auto_compactions: 0
+2021/03/14-07:46:37.457752 7f954e834a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:46:37.457753 7f954e834a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:46:37.457754 7f954e834a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:46:37.457754 7f954e834a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:46:37.457755 7f954e834a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:46:37.457756 7f954e834a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:46:37.457756 7f954e834a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:46:37.457758 7f954e834a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:46:37.457758 7f954e834a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:46:37.457759 7f954e834a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:46:37.457759 7f954e834a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:46:37.457760 7f954e834a80 Options.table_properties_collectors:
+2021/03/14-07:46:37.457761 7f954e834a80 Options.inplace_update_support: 0
+2021/03/14-07:46:37.457761 7f954e834a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:46:37.457762 7f954e834a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:46:37.457763 7f954e834a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:46:37.457763 7f954e834a80 Options.bloom_locality: 0
+2021/03/14-07:46:37.457764 7f954e834a80 Options.max_successive_merges: 0
+2021/03/14-07:46:37.457765 7f954e834a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:46:37.457765 7f954e834a80 Options.paranoid_file_checks: 0
+2021/03/14-07:46:37.457766 7f954e834a80 Options.force_consistency_checks: 0
+2021/03/14-07:46:37.457766 7f954e834a80 Options.report_bg_io_stats: 0
+2021/03/14-07:46:37.458204 7f954e834a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:46:37.458207 7f954e834a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:46:37.458378 7f954e834a80 EVENT_LOG_v1 {"time_micros": 1615704397458366, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:46:37.458384 7f954e834a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:46:38.257836 7f954e834a80 EVENT_LOG_v1 {"time_micros": 1615704398257832, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704399069774 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704399069774
new file mode 100644
index 0000000..036ed9b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704399069774
@@ -0,0 +1,186 @@
+2021/03/14-07:46:38.271123 7f954e834a80 RocksDB version: 5.11.3
+2021/03/14-07:46:38.271224 7f954e834a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:46:38.271226 7f954e834a80 Compile date Mar 13 2021
+2021/03/14-07:46:38.271231 7f954e834a80 DB SUMMARY
+2021/03/14-07:46:38.271395 7f954e834a80 CURRENT file: CURRENT
+2021/03/14-07:46:38.271396 7f954e834a80 IDENTITY file: IDENTITY
+2021/03/14-07:46:38.271412 7f954e834a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:46:38.271413 7f954e834a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:46:38.271414 7f954e834a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:46:38.271420 7f954e834a80 Options.error_if_exists: 0
+2021/03/14-07:46:38.271421 7f954e834a80 Options.create_if_missing: 1
+2021/03/14-07:46:38.271421 7f954e834a80 Options.paranoid_checks: 1
+2021/03/14-07:46:38.271422 7f954e834a80 Options.env: 0x7f954f1ee080
+2021/03/14-07:46:38.271423 7f954e834a80 Options.info_log: 0x23aefa0
+2021/03/14-07:46:38.271423 7f954e834a80 Options.max_file_opening_threads: 16
+2021/03/14-07:46:38.271424 7f954e834a80 Options.statistics: (nil)
+2021/03/14-07:46:38.271424 7f954e834a80 Options.use_fsync: 0
+2021/03/14-07:46:38.271425 7f954e834a80 Options.max_log_file_size: 0
+2021/03/14-07:46:38.271426 7f954e834a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:46:38.271426 7f954e834a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:46:38.271427 7f954e834a80 Options.keep_log_file_num: 1000
+2021/03/14-07:46:38.271427 7f954e834a80 Options.recycle_log_file_num: 0
+2021/03/14-07:46:38.271428 7f954e834a80 Options.allow_fallocate: 1
+2021/03/14-07:46:38.271429 7f954e834a80 Options.allow_mmap_reads: 0
+2021/03/14-07:46:38.271429 7f954e834a80 Options.allow_mmap_writes: 0
+2021/03/14-07:46:38.271430 7f954e834a80 Options.use_direct_reads: 0
+2021/03/14-07:46:38.271430 7f954e834a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:46:38.271431 7f954e834a80 Options.create_missing_column_families: 0
+2021/03/14-07:46:38.271431 7f954e834a80 Options.db_log_dir:
+2021/03/14-07:46:38.271432 7f954e834a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:46:38.271432 7f954e834a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:46:38.271433 7f954e834a80 Options.max_subcompactions: 1
+2021/03/14-07:46:38.271433 7f954e834a80 Options.max_background_flushes: -1
+2021/03/14-07:46:38.271434 7f954e834a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:46:38.271435 7f954e834a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:46:38.271435 7f954e834a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:46:38.271436 7f954e834a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:46:38.271436 7f954e834a80 Options.advise_random_on_open: 1
+2021/03/14-07:46:38.271437 7f954e834a80 Options.db_write_buffer_size: 0
+2021/03/14-07:46:38.271437 7f954e834a80 Options.write_buffer_manager: 0x2396e90
+2021/03/14-07:46:38.271438 7f954e834a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:46:38.271439 7f954e834a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:46:38.271439 7f954e834a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:46:38.271440 7f954e834a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:46:38.271440 7f954e834a80 Options.rate_limiter: (nil)
+2021/03/14-07:46:38.271442 7f954e834a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:46:38.271450 7f954e834a80 Options.wal_recovery_mode: 2
+2021/03/14-07:46:38.271451 7f954e834a80 Options.enable_thread_tracking: 0
+2021/03/14-07:46:38.271451 7f954e834a80 Options.enable_pipelined_write: 0
+2021/03/14-07:46:38.271452 7f954e834a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:46:38.271453 7f954e834a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:46:38.271453 7f954e834a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:46:38.271454 7f954e834a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:46:38.271454 7f954e834a80 Options.row_cache: None
+2021/03/14-07:46:38.271455 7f954e834a80 Options.wal_filter: None
+2021/03/14-07:46:38.271455 7f954e834a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:46:38.271456 7f954e834a80 Options.allow_ingest_behind: 0
+2021/03/14-07:46:38.271457 7f954e834a80 Options.preserve_deletes: 0
+2021/03/14-07:46:38.271457 7f954e834a80 Options.two_write_queues: 0
+2021/03/14-07:46:38.271458 7f954e834a80 Options.manual_wal_flush: 0
+2021/03/14-07:46:38.271459 7f954e834a80 Options.max_background_jobs: 16
+2021/03/14-07:46:38.271459 7f954e834a80 Options.max_background_compactions: -1
+2021/03/14-07:46:38.271460 7f954e834a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:46:38.271460 7f954e834a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:46:38.271461 7f954e834a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:46:38.271461 7f954e834a80 Options.max_total_wal_size: 0
+2021/03/14-07:46:38.271462 7f954e834a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:46:38.271463 7f954e834a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:46:38.271463 7f954e834a80 Options.max_open_files: -1
+2021/03/14-07:46:38.271464 7f954e834a80 Options.bytes_per_sync: 0
+2021/03/14-07:46:38.271464 7f954e834a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:46:38.271465 7f954e834a80 Options.compaction_readahead_size: 0
+2021/03/14-07:46:38.271465 7f954e834a80 Compression algorithms supported:
+2021/03/14-07:46:38.271466 7f954e834a80 Snappy supported: 1
+2021/03/14-07:46:38.271467 7f954e834a80 Zlib supported: 1
+2021/03/14-07:46:38.271467 7f954e834a80 Bzip supported: 1
+2021/03/14-07:46:38.271468 7f954e834a80 LZ4 supported: 1
+2021/03/14-07:46:38.271468 7f954e834a80 ZSTDNotFinal supported: 1
+2021/03/14-07:46:38.271472 7f954e834a80 ZSTD supported: 1
+2021/03/14-07:46:38.271476 7f954e834a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:46:38.271477 7f954e834a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:46:38.271593 7f954e834a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:46:38.271651 7f954e834a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:46:38.271653 7f954e834a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:46:38.271654 7f954e834a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:46:38.271654 7f954e834a80 Options.compaction_filter: None
+2021/03/14-07:46:38.271655 7f954e834a80 Options.compaction_filter_factory: None
+2021/03/14-07:46:38.271656 7f954e834a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:46:38.271657 7f954e834a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:46:38.271675 7f954e834a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x23a6820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x238bf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:46:38.271676 7f954e834a80 Options.write_buffer_size: 134217728
+2021/03/14-07:46:38.271677 7f954e834a80 Options.max_write_buffer_number: 6
+2021/03/14-07:46:38.271677 7f954e834a80 Options.compression[0]: NoCompression
+2021/03/14-07:46:38.271678 7f954e834a80 Options.compression[1]: NoCompression
+2021/03/14-07:46:38.271679 7f954e834a80 Options.compression[2]: Snappy
+2021/03/14-07:46:38.271679 7f954e834a80 Options.compression[3]: Snappy
+2021/03/14-07:46:38.271680 7f954e834a80 Options.compression[4]: Snappy
+2021/03/14-07:46:38.271680 7f954e834a80 Options.compression[5]: Snappy
+2021/03/14-07:46:38.271681 7f954e834a80 Options.compression[6]: Snappy
+2021/03/14-07:46:38.271682 7f954e834a80 Options.bottommost_compression: Disabled
+2021/03/14-07:46:38.271682 7f954e834a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:46:38.271683 7f954e834a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:46:38.271683 7f954e834a80 Options.num_levels: 7
+2021/03/14-07:46:38.271684 7f954e834a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:46:38.271685 7f954e834a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:46:38.271685 7f954e834a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:46:38.271686 7f954e834a80 Options.compression_opts.level: -1
+2021/03/14-07:46:38.271686 7f954e834a80 Options.compression_opts.strategy: 0
+2021/03/14-07:46:38.271687 7f954e834a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:46:38.271688 7f954e834a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:46:38.271688 7f954e834a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:46:38.271689 7f954e834a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:46:38.271689 7f954e834a80 Options.target_file_size_base: 67108864
+2021/03/14-07:46:38.271690 7f954e834a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:46:38.271690 7f954e834a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:46:38.271691 7f954e834a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:46:38.271692 7f954e834a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:46:38.271693 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:46:38.271701 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:46:38.271701 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:46:38.271702 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:46:38.271702 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:46:38.271703 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:46:38.271703 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:46:38.271704 7f954e834a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:46:38.271705 7f954e834a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:46:38.271705 7f954e834a80 Options.arena_block_size: 16777216
+2021/03/14-07:46:38.271706 7f954e834a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:46:38.271706 7f954e834a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:46:38.271707 7f954e834a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:46:38.271708 7f954e834a80 Options.disable_auto_compactions: 0
+2021/03/14-07:46:38.271709 7f954e834a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:46:38.271710 7f954e834a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:46:38.271711 7f954e834a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:46:38.271711 7f954e834a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:46:38.271712 7f954e834a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:46:38.271712 7f954e834a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:46:38.271713 7f954e834a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:46:38.271714 7f954e834a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:46:38.271714 7f954e834a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:46:38.271715 7f954e834a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:46:38.271716 7f954e834a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:46:38.271716 7f954e834a80 Options.table_properties_collectors:
+2021/03/14-07:46:38.271717 7f954e834a80 Options.inplace_update_support: 0
+2021/03/14-07:46:38.271717 7f954e834a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:46:38.271718 7f954e834a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:46:38.271719 7f954e834a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:46:38.271719 7f954e834a80 Options.bloom_locality: 0
+2021/03/14-07:46:38.271720 7f954e834a80 Options.max_successive_merges: 0
+2021/03/14-07:46:38.271720 7f954e834a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:46:38.271721 7f954e834a80 Options.paranoid_file_checks: 0
+2021/03/14-07:46:38.271721 7f954e834a80 Options.force_consistency_checks: 0
+2021/03/14-07:46:38.271722 7f954e834a80 Options.report_bg_io_stats: 0
+2021/03/14-07:46:38.272204 7f954e834a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:46:38.272207 7f954e834a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:46:38.272379 7f954e834a80 EVENT_LOG_v1 {"time_micros": 1615704398272367, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:46:38.272385 7f954e834a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:46:39.057278 7f954e834a80 EVENT_LOG_v1 {"time_micros": 1615704399057274, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704399833536 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704399833536
new file mode 100644
index 0000000..94dff0e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704399833536
@@ -0,0 +1,186 @@
+2021/03/14-07:46:39.070193 7f954e834a80 RocksDB version: 5.11.3
+2021/03/14-07:46:39.070302 7f954e834a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:46:39.070304 7f954e834a80 Compile date Mar 13 2021
+2021/03/14-07:46:39.070309 7f954e834a80 DB SUMMARY
+2021/03/14-07:46:39.070466 7f954e834a80 CURRENT file: CURRENT
+2021/03/14-07:46:39.070467 7f954e834a80 IDENTITY file: IDENTITY
+2021/03/14-07:46:39.070483 7f954e834a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:46:39.070484 7f954e834a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:46:39.070485 7f954e834a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:46:39.070491 7f954e834a80 Options.error_if_exists: 0
+2021/03/14-07:46:39.070492 7f954e834a80 Options.create_if_missing: 1
+2021/03/14-07:46:39.070492 7f954e834a80 Options.paranoid_checks: 1
+2021/03/14-07:46:39.070493 7f954e834a80 Options.env: 0x7f954f1ee080
+2021/03/14-07:46:39.070493 7f954e834a80 Options.info_log: 0x23aefa0
+2021/03/14-07:46:39.070494 7f954e834a80 Options.max_file_opening_threads: 16
+2021/03/14-07:46:39.070495 7f954e834a80 Options.statistics: (nil)
+2021/03/14-07:46:39.070495 7f954e834a80 Options.use_fsync: 0
+2021/03/14-07:46:39.070496 7f954e834a80 Options.max_log_file_size: 0
+2021/03/14-07:46:39.070496 7f954e834a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:46:39.070497 7f954e834a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:46:39.070498 7f954e834a80 Options.keep_log_file_num: 1000
+2021/03/14-07:46:39.070498 7f954e834a80 Options.recycle_log_file_num: 0
+2021/03/14-07:46:39.070499 7f954e834a80 Options.allow_fallocate: 1
+2021/03/14-07:46:39.070499 7f954e834a80 Options.allow_mmap_reads: 0
+2021/03/14-07:46:39.070500 7f954e834a80 Options.allow_mmap_writes: 0
+2021/03/14-07:46:39.070500 7f954e834a80 Options.use_direct_reads: 0
+2021/03/14-07:46:39.070501 7f954e834a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:46:39.070502 7f954e834a80 Options.create_missing_column_families: 0
+2021/03/14-07:46:39.070502 7f954e834a80 Options.db_log_dir:
+2021/03/14-07:46:39.070503 7f954e834a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:46:39.070503 7f954e834a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:46:39.070504 7f954e834a80 Options.max_subcompactions: 1
+2021/03/14-07:46:39.070504 7f954e834a80 Options.max_background_flushes: -1
+2021/03/14-07:46:39.070505 7f954e834a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:46:39.070506 7f954e834a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:46:39.070506 7f954e834a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:46:39.070507 7f954e834a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:46:39.070507 7f954e834a80 Options.advise_random_on_open: 1
+2021/03/14-07:46:39.070508 7f954e834a80 Options.db_write_buffer_size: 0
+2021/03/14-07:46:39.070508 7f954e834a80 Options.write_buffer_manager: 0x2396e90
+2021/03/14-07:46:39.070509 7f954e834a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:46:39.070510 7f954e834a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:46:39.070510 7f954e834a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:46:39.070511 7f954e834a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:46:39.070511 7f954e834a80 Options.rate_limiter: (nil)
+2021/03/14-07:46:39.070513 7f954e834a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:46:39.070520 7f954e834a80 Options.wal_recovery_mode: 2
+2021/03/14-07:46:39.070521 7f954e834a80 Options.enable_thread_tracking: 0
+2021/03/14-07:46:39.070522 7f954e834a80 Options.enable_pipelined_write: 0
+2021/03/14-07:46:39.070522 7f954e834a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:46:39.070523 7f954e834a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:46:39.070523 7f954e834a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:46:39.070524 7f954e834a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:46:39.070524 7f954e834a80 Options.row_cache: None
+2021/03/14-07:46:39.070525 7f954e834a80 Options.wal_filter: None
+2021/03/14-07:46:39.070526 7f954e834a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:46:39.070526 7f954e834a80 Options.allow_ingest_behind: 0
+2021/03/14-07:46:39.070527 7f954e834a80 Options.preserve_deletes: 0
+2021/03/14-07:46:39.070527 7f954e834a80 Options.two_write_queues: 0
+2021/03/14-07:46:39.070528 7f954e834a80 Options.manual_wal_flush: 0
+2021/03/14-07:46:39.070529 7f954e834a80 Options.max_background_jobs: 16
+2021/03/14-07:46:39.070530 7f954e834a80 Options.max_background_compactions: -1
+2021/03/14-07:46:39.070530 7f954e834a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:46:39.070531 7f954e834a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:46:39.070531 7f954e834a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:46:39.070532 7f954e834a80 Options.max_total_wal_size: 0
+2021/03/14-07:46:39.070533 7f954e834a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:46:39.070533 7f954e834a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:46:39.070534 7f954e834a80 Options.max_open_files: -1
+2021/03/14-07:46:39.070534 7f954e834a80 Options.bytes_per_sync: 0
+2021/03/14-07:46:39.070535 7f954e834a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:46:39.070535 7f954e834a80 Options.compaction_readahead_size: 0
+2021/03/14-07:46:39.070536 7f954e834a80 Compression algorithms supported:
+2021/03/14-07:46:39.070537 7f954e834a80 Snappy supported: 1
+2021/03/14-07:46:39.070537 7f954e834a80 Zlib supported: 1
+2021/03/14-07:46:39.070538 7f954e834a80 Bzip supported: 1
+2021/03/14-07:46:39.070539 7f954e834a80 LZ4 supported: 1
+2021/03/14-07:46:39.070539 7f954e834a80 ZSTDNotFinal supported: 1
+2021/03/14-07:46:39.070543 7f954e834a80 ZSTD supported: 1
+2021/03/14-07:46:39.070546 7f954e834a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:46:39.070547 7f954e834a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:46:39.070635 7f954e834a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:46:39.070689 7f954e834a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:46:39.070691 7f954e834a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:46:39.070692 7f954e834a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:46:39.070693 7f954e834a80 Options.compaction_filter: None
+2021/03/14-07:46:39.070693 7f954e834a80 Options.compaction_filter_factory: None
+2021/03/14-07:46:39.070694 7f954e834a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:46:39.070695 7f954e834a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:46:39.070711 7f954e834a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x23a6820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x238bf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:46:39.070712 7f954e834a80 Options.write_buffer_size: 134217728
+2021/03/14-07:46:39.070712 7f954e834a80 Options.max_write_buffer_number: 6
+2021/03/14-07:46:39.070713 7f954e834a80 Options.compression[0]: NoCompression
+2021/03/14-07:46:39.070714 7f954e834a80 Options.compression[1]: NoCompression
+2021/03/14-07:46:39.070714 7f954e834a80 Options.compression[2]: Snappy
+2021/03/14-07:46:39.070715 7f954e834a80 Options.compression[3]: Snappy
+2021/03/14-07:46:39.070716 7f954e834a80 Options.compression[4]: Snappy
+2021/03/14-07:46:39.070716 7f954e834a80 Options.compression[5]: Snappy
+2021/03/14-07:46:39.070717 7f954e834a80 Options.compression[6]: Snappy
+2021/03/14-07:46:39.070717 7f954e834a80 Options.bottommost_compression: Disabled
+2021/03/14-07:46:39.070718 7f954e834a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:46:39.070719 7f954e834a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:46:39.070719 7f954e834a80 Options.num_levels: 7
+2021/03/14-07:46:39.070720 7f954e834a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:46:39.070720 7f954e834a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:46:39.070721 7f954e834a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:46:39.070722 7f954e834a80 Options.compression_opts.level: -1
+2021/03/14-07:46:39.070722 7f954e834a80 Options.compression_opts.strategy: 0
+2021/03/14-07:46:39.070723 7f954e834a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:46:39.070723 7f954e834a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:46:39.070724 7f954e834a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:46:39.070724 7f954e834a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:46:39.070725 7f954e834a80 Options.target_file_size_base: 67108864
+2021/03/14-07:46:39.070726 7f954e834a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:46:39.070726 7f954e834a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:46:39.070727 7f954e834a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:46:39.070727 7f954e834a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:46:39.070729 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:46:39.070736 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:46:39.070736 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:46:39.070737 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:46:39.070737 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:46:39.070738 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:46:39.070738 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:46:39.070739 7f954e834a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:46:39.070740 7f954e834a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:46:39.070740 7f954e834a80 Options.arena_block_size: 16777216
+2021/03/14-07:46:39.070741 7f954e834a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:46:39.070741 7f954e834a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:46:39.070742 7f954e834a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:46:39.070743 7f954e834a80 Options.disable_auto_compactions: 0
+2021/03/14-07:46:39.070744 7f954e834a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:46:39.070745 7f954e834a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:46:39.070746 7f954e834a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:46:39.070746 7f954e834a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:46:39.070747 7f954e834a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:46:39.070747 7f954e834a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:46:39.070748 7f954e834a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:46:39.070749 7f954e834a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:46:39.070750 7f954e834a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:46:39.070751 7f954e834a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:46:39.070751 7f954e834a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:46:39.070752 7f954e834a80 Options.table_properties_collectors:
+2021/03/14-07:46:39.070752 7f954e834a80 Options.inplace_update_support: 0
+2021/03/14-07:46:39.070753 7f954e834a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:46:39.070753 7f954e834a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:46:39.070754 7f954e834a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:46:39.070755 7f954e834a80 Options.bloom_locality: 0
+2021/03/14-07:46:39.070755 7f954e834a80 Options.max_successive_merges: 0
+2021/03/14-07:46:39.070756 7f954e834a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:46:39.070756 7f954e834a80 Options.paranoid_file_checks: 0
+2021/03/14-07:46:39.070757 7f954e834a80 Options.force_consistency_checks: 0
+2021/03/14-07:46:39.070758 7f954e834a80 Options.report_bg_io_stats: 0
+2021/03/14-07:46:39.071131 7f954e834a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:46:39.071134 7f954e834a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:46:39.071292 7f954e834a80 EVENT_LOG_v1 {"time_micros": 1615704399071281, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:46:39.071297 7f954e834a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:46:39.820208 7f954e834a80 EVENT_LOG_v1 {"time_micros": 1615704399820205, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704413559395 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704413559395
new file mode 100644
index 0000000..2f8d2d0
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704413559395
@@ -0,0 +1,186 @@
+2021/03/14-07:46:39.833950 7f954e834a80 RocksDB version: 5.11.3
+2021/03/14-07:46:39.834008 7f954e834a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:46:39.834010 7f954e834a80 Compile date Mar 13 2021
+2021/03/14-07:46:39.834015 7f954e834a80 DB SUMMARY
+2021/03/14-07:46:39.834170 7f954e834a80 CURRENT file: CURRENT
+2021/03/14-07:46:39.834171 7f954e834a80 IDENTITY file: IDENTITY
+2021/03/14-07:46:39.834186 7f954e834a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:46:39.834187 7f954e834a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:46:39.834188 7f954e834a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:46:39.834194 7f954e834a80 Options.error_if_exists: 0
+2021/03/14-07:46:39.834195 7f954e834a80 Options.create_if_missing: 1
+2021/03/14-07:46:39.834196 7f954e834a80 Options.paranoid_checks: 1
+2021/03/14-07:46:39.834196 7f954e834a80 Options.env: 0x7f954f1ee080
+2021/03/14-07:46:39.834197 7f954e834a80 Options.info_log: 0x23aefa0
+2021/03/14-07:46:39.834197 7f954e834a80 Options.max_file_opening_threads: 16
+2021/03/14-07:46:39.834198 7f954e834a80 Options.statistics: (nil)
+2021/03/14-07:46:39.834199 7f954e834a80 Options.use_fsync: 0
+2021/03/14-07:46:39.834199 7f954e834a80 Options.max_log_file_size: 0
+2021/03/14-07:46:39.834200 7f954e834a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:46:39.834201 7f954e834a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:46:39.834201 7f954e834a80 Options.keep_log_file_num: 1000
+2021/03/14-07:46:39.834202 7f954e834a80 Options.recycle_log_file_num: 0
+2021/03/14-07:46:39.834202 7f954e834a80 Options.allow_fallocate: 1
+2021/03/14-07:46:39.834203 7f954e834a80 Options.allow_mmap_reads: 0
+2021/03/14-07:46:39.834203 7f954e834a80 Options.allow_mmap_writes: 0
+2021/03/14-07:46:39.834204 7f954e834a80 Options.use_direct_reads: 0
+2021/03/14-07:46:39.834205 7f954e834a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:46:39.834205 7f954e834a80 Options.create_missing_column_families: 0
+2021/03/14-07:46:39.834206 7f954e834a80 Options.db_log_dir:
+2021/03/14-07:46:39.834206 7f954e834a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:46:39.834207 7f954e834a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:46:39.834207 7f954e834a80 Options.max_subcompactions: 1
+2021/03/14-07:46:39.834208 7f954e834a80 Options.max_background_flushes: -1
+2021/03/14-07:46:39.834209 7f954e834a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:46:39.834209 7f954e834a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:46:39.834210 7f954e834a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:46:39.834210 7f954e834a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:46:39.834211 7f954e834a80 Options.advise_random_on_open: 1
+2021/03/14-07:46:39.834211 7f954e834a80 Options.db_write_buffer_size: 0
+2021/03/14-07:46:39.834212 7f954e834a80 Options.write_buffer_manager: 0x2396e90
+2021/03/14-07:46:39.834212 7f954e834a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:46:39.834213 7f954e834a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:46:39.834214 7f954e834a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:46:39.834214 7f954e834a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:46:39.834215 7f954e834a80 Options.rate_limiter: (nil)
+2021/03/14-07:46:39.834216 7f954e834a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:46:39.834223 7f954e834a80 Options.wal_recovery_mode: 2
+2021/03/14-07:46:39.834224 7f954e834a80 Options.enable_thread_tracking: 0
+2021/03/14-07:46:39.834224 7f954e834a80 Options.enable_pipelined_write: 0
+2021/03/14-07:46:39.834225 7f954e834a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:46:39.834225 7f954e834a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:46:39.834226 7f954e834a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:46:39.834226 7f954e834a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:46:39.834227 7f954e834a80 Options.row_cache: None
+2021/03/14-07:46:39.834228 7f954e834a80 Options.wal_filter: None
+2021/03/14-07:46:39.834228 7f954e834a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:46:39.834229 7f954e834a80 Options.allow_ingest_behind: 0
+2021/03/14-07:46:39.834229 7f954e834a80 Options.preserve_deletes: 0
+2021/03/14-07:46:39.834230 7f954e834a80 Options.two_write_queues: 0
+2021/03/14-07:46:39.834230 7f954e834a80 Options.manual_wal_flush: 0
+2021/03/14-07:46:39.834232 7f954e834a80 Options.max_background_jobs: 16
+2021/03/14-07:46:39.834232 7f954e834a80 Options.max_background_compactions: -1
+2021/03/14-07:46:39.834233 7f954e834a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:46:39.834233 7f954e834a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:46:39.834234 7f954e834a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:46:39.834234 7f954e834a80 Options.max_total_wal_size: 0
+2021/03/14-07:46:39.834235 7f954e834a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:46:39.834235 7f954e834a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:46:39.834236 7f954e834a80 Options.max_open_files: -1
+2021/03/14-07:46:39.834237 7f954e834a80 Options.bytes_per_sync: 0
+2021/03/14-07:46:39.834242 7f954e834a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:46:39.834243 7f954e834a80 Options.compaction_readahead_size: 0
+2021/03/14-07:46:39.834244 7f954e834a80 Compression algorithms supported:
+2021/03/14-07:46:39.834244 7f954e834a80 Snappy supported: 1
+2021/03/14-07:46:39.834245 7f954e834a80 Zlib supported: 1
+2021/03/14-07:46:39.834246 7f954e834a80 Bzip supported: 1
+2021/03/14-07:46:39.834246 7f954e834a80 LZ4 supported: 1
+2021/03/14-07:46:39.834247 7f954e834a80 ZSTDNotFinal supported: 1
+2021/03/14-07:46:39.834250 7f954e834a80 ZSTD supported: 1
+2021/03/14-07:46:39.834254 7f954e834a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:46:39.834255 7f954e834a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:46:39.834345 7f954e834a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:46:39.834398 7f954e834a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:46:39.834400 7f954e834a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:46:39.834401 7f954e834a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:46:39.834401 7f954e834a80 Options.compaction_filter: None
+2021/03/14-07:46:39.834402 7f954e834a80 Options.compaction_filter_factory: None
+2021/03/14-07:46:39.834402 7f954e834a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:46:39.834403 7f954e834a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:46:39.834420 7f954e834a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x23a6820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x238bf20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:46:39.834421 7f954e834a80 Options.write_buffer_size: 134217728
+2021/03/14-07:46:39.834421 7f954e834a80 Options.max_write_buffer_number: 6
+2021/03/14-07:46:39.834422 7f954e834a80 Options.compression[0]: NoCompression
+2021/03/14-07:46:39.834423 7f954e834a80 Options.compression[1]: NoCompression
+2021/03/14-07:46:39.834423 7f954e834a80 Options.compression[2]: Snappy
+2021/03/14-07:46:39.834424 7f954e834a80 Options.compression[3]: Snappy
+2021/03/14-07:46:39.834424 7f954e834a80 Options.compression[4]: Snappy
+2021/03/14-07:46:39.834425 7f954e834a80 Options.compression[5]: Snappy
+2021/03/14-07:46:39.834426 7f954e834a80 Options.compression[6]: Snappy
+2021/03/14-07:46:39.834426 7f954e834a80 Options.bottommost_compression: Disabled
+2021/03/14-07:46:39.834427 7f954e834a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:46:39.834428 7f954e834a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:46:39.834428 7f954e834a80 Options.num_levels: 7
+2021/03/14-07:46:39.834429 7f954e834a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:46:39.834429 7f954e834a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:46:39.834430 7f954e834a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:46:39.834430 7f954e834a80 Options.compression_opts.level: -1
+2021/03/14-07:46:39.834431 7f954e834a80 Options.compression_opts.strategy: 0
+2021/03/14-07:46:39.834432 7f954e834a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:46:39.834432 7f954e834a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:46:39.834433 7f954e834a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:46:39.834433 7f954e834a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:46:39.834434 7f954e834a80 Options.target_file_size_base: 67108864
+2021/03/14-07:46:39.834435 7f954e834a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:46:39.834435 7f954e834a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:46:39.834436 7f954e834a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:46:39.834436 7f954e834a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:46:39.834438 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:46:39.834445 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:46:39.834446 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:46:39.834447 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:46:39.834447 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:46:39.834448 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:46:39.834448 7f954e834a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:46:39.834449 7f954e834a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:46:39.834450 7f954e834a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:46:39.834450 7f954e834a80 Options.arena_block_size: 16777216
+2021/03/14-07:46:39.834451 7f954e834a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:46:39.834451 7f954e834a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:46:39.834452 7f954e834a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:46:39.834453 7f954e834a80 Options.disable_auto_compactions: 0
+2021/03/14-07:46:39.834454 7f954e834a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:46:39.834455 7f954e834a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:46:39.834455 7f954e834a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:46:39.834456 7f954e834a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:46:39.834457 7f954e834a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:46:39.834457 7f954e834a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:46:39.834458 7f954e834a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:46:39.834459 7f954e834a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:46:39.834459 7f954e834a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:46:39.834460 7f954e834a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:46:39.834461 7f954e834a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:46:39.834461 7f954e834a80 Options.table_properties_collectors:
+2021/03/14-07:46:39.834462 7f954e834a80 Options.inplace_update_support: 0
+2021/03/14-07:46:39.834462 7f954e834a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:46:39.834463 7f954e834a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:46:39.834464 7f954e834a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:46:39.834464 7f954e834a80 Options.bloom_locality: 0
+2021/03/14-07:46:39.834465 7f954e834a80 Options.max_successive_merges: 0
+2021/03/14-07:46:39.834465 7f954e834a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:46:39.834466 7f954e834a80 Options.paranoid_file_checks: 0
+2021/03/14-07:46:39.834466 7f954e834a80 Options.force_consistency_checks: 0
+2021/03/14-07:46:39.834467 7f954e834a80 Options.report_bg_io_stats: 0
+2021/03/14-07:46:39.834852 7f954e834a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:46:39.834855 7f954e834a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:46:39.835008 7f954e834a80 EVENT_LOG_v1 {"time_micros": 1615704399834998, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:46:39.835014 7f954e834a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:46:40.568901 7f954e834a80 EVENT_LOG_v1 {"time_micros": 1615704400568898, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704414340864 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704414340864
new file mode 100644
index 0000000..6f45e0c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704414340864
@@ -0,0 +1,186 @@
+2021/03/14-07:46:53.559832 7f8c7ee1aa80 RocksDB version: 5.11.3
+2021/03/14-07:46:53.559888 7f8c7ee1aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:46:53.559890 7f8c7ee1aa80 Compile date Mar 13 2021
+2021/03/14-07:46:53.559895 7f8c7ee1aa80 DB SUMMARY
+2021/03/14-07:46:53.560059 7f8c7ee1aa80 CURRENT file: CURRENT
+2021/03/14-07:46:53.560060 7f8c7ee1aa80 IDENTITY file: IDENTITY
+2021/03/14-07:46:53.560076 7f8c7ee1aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:46:53.560077 7f8c7ee1aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:46:53.560078 7f8c7ee1aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:46:53.560084 7f8c7ee1aa80 Options.error_if_exists: 0
+2021/03/14-07:46:53.560085 7f8c7ee1aa80 Options.create_if_missing: 1
+2021/03/14-07:46:53.560086 7f8c7ee1aa80 Options.paranoid_checks: 1
+2021/03/14-07:46:53.560086 7f8c7ee1aa80 Options.env: 0x7f8c7f7d4080
+2021/03/14-07:46:53.560087 7f8c7ee1aa80 Options.info_log: 0x1726fa0
+2021/03/14-07:46:53.560087 7f8c7ee1aa80 Options.max_file_opening_threads: 16
+2021/03/14-07:46:53.560088 7f8c7ee1aa80 Options.statistics: (nil)
+2021/03/14-07:46:53.560089 7f8c7ee1aa80 Options.use_fsync: 0
+2021/03/14-07:46:53.560089 7f8c7ee1aa80 Options.max_log_file_size: 0
+2021/03/14-07:46:53.560090 7f8c7ee1aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:46:53.560091 7f8c7ee1aa80 Options.log_file_time_to_roll: 0
+2021/03/14-07:46:53.560091 7f8c7ee1aa80 Options.keep_log_file_num: 1000
+2021/03/14-07:46:53.560092 7f8c7ee1aa80 Options.recycle_log_file_num: 0
+2021/03/14-07:46:53.560092 7f8c7ee1aa80 Options.allow_fallocate: 1
+2021/03/14-07:46:53.560093 7f8c7ee1aa80 Options.allow_mmap_reads: 0
+2021/03/14-07:46:53.560094 7f8c7ee1aa80 Options.allow_mmap_writes: 0
+2021/03/14-07:46:53.560094 7f8c7ee1aa80 Options.use_direct_reads: 0
+2021/03/14-07:46:53.560095 7f8c7ee1aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:46:53.560095 7f8c7ee1aa80 Options.create_missing_column_families: 0
+2021/03/14-07:46:53.560096 7f8c7ee1aa80 Options.db_log_dir:
+2021/03/14-07:46:53.560097 7f8c7ee1aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:46:53.560097 7f8c7ee1aa80 Options.table_cache_numshardbits: 6
+2021/03/14-07:46:53.560098 7f8c7ee1aa80 Options.max_subcompactions: 1
+2021/03/14-07:46:53.560098 7f8c7ee1aa80 Options.max_background_flushes: -1
+2021/03/14-07:46:53.560099 7f8c7ee1aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:46:53.560100 7f8c7ee1aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:46:53.560100 7f8c7ee1aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:46:53.560101 7f8c7ee1aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:46:53.560101 7f8c7ee1aa80 Options.advise_random_on_open: 1
+2021/03/14-07:46:53.560102 7f8c7ee1aa80 Options.db_write_buffer_size: 0
+2021/03/14-07:46:53.560103 7f8c7ee1aa80 Options.write_buffer_manager: 0x170ee90
+2021/03/14-07:46:53.560103 7f8c7ee1aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:46:53.560104 7f8c7ee1aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:46:53.560104 7f8c7ee1aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:46:53.560105 7f8c7ee1aa80 Options.use_adaptive_mutex: 0
+2021/03/14-07:46:53.560106 7f8c7ee1aa80 Options.rate_limiter: (nil)
+2021/03/14-07:46:53.560107 7f8c7ee1aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:46:53.560114 7f8c7ee1aa80 Options.wal_recovery_mode: 2
+2021/03/14-07:46:53.560115 7f8c7ee1aa80 Options.enable_thread_tracking: 0
+2021/03/14-07:46:53.560116 7f8c7ee1aa80 Options.enable_pipelined_write: 0
+2021/03/14-07:46:53.560116 7f8c7ee1aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:46:53.560117 7f8c7ee1aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:46:53.560118 7f8c7ee1aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:46:53.560118 7f8c7ee1aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:46:53.560119 7f8c7ee1aa80 Options.row_cache: None
+2021/03/14-07:46:53.560119 7f8c7ee1aa80 Options.wal_filter: None
+2021/03/14-07:46:53.560120 7f8c7ee1aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:46:53.560121 7f8c7ee1aa80 Options.allow_ingest_behind: 0
+2021/03/14-07:46:53.560121 7f8c7ee1aa80 Options.preserve_deletes: 0
+2021/03/14-07:46:53.560122 7f8c7ee1aa80 Options.two_write_queues: 0
+2021/03/14-07:46:53.560122 7f8c7ee1aa80 Options.manual_wal_flush: 0
+2021/03/14-07:46:53.560124 7f8c7ee1aa80 Options.max_background_jobs: 16
+2021/03/14-07:46:53.560124 7f8c7ee1aa80 Options.max_background_compactions: -1
+2021/03/14-07:46:53.560125 7f8c7ee1aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:46:53.560125 7f8c7ee1aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:46:53.560126 7f8c7ee1aa80 Options.delayed_write_rate : 16777216
+2021/03/14-07:46:53.560127 7f8c7ee1aa80 Options.max_total_wal_size: 0
+2021/03/14-07:46:53.560127 7f8c7ee1aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:46:53.560128 7f8c7ee1aa80 Options.stats_dump_period_sec: 600
+2021/03/14-07:46:53.560128 7f8c7ee1aa80 Options.max_open_files: -1
+2021/03/14-07:46:53.560129 7f8c7ee1aa80 Options.bytes_per_sync: 0
+2021/03/14-07:46:53.560130 7f8c7ee1aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:46:53.560130 7f8c7ee1aa80 Options.compaction_readahead_size: 0
+2021/03/14-07:46:53.560131 7f8c7ee1aa80 Compression algorithms supported:
+2021/03/14-07:46:53.560131 7f8c7ee1aa80 Snappy supported: 1
+2021/03/14-07:46:53.560132 7f8c7ee1aa80 Zlib supported: 1
+2021/03/14-07:46:53.560133 7f8c7ee1aa80 Bzip supported: 1
+2021/03/14-07:46:53.560133 7f8c7ee1aa80 LZ4 supported: 1
+2021/03/14-07:46:53.560134 7f8c7ee1aa80 ZSTDNotFinal supported: 1
+2021/03/14-07:46:53.560138 7f8c7ee1aa80 ZSTD supported: 1
+2021/03/14-07:46:53.560141 7f8c7ee1aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:46:53.560143 7f8c7ee1aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:46:53.560254 7f8c7ee1aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:46:53.560313 7f8c7ee1aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:46:53.560315 7f8c7ee1aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:46:53.560316 7f8c7ee1aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:46:53.560317 7f8c7ee1aa80 Options.compaction_filter: None
+2021/03/14-07:46:53.560317 7f8c7ee1aa80 Options.compaction_filter_factory: None
+2021/03/14-07:46:53.560318 7f8c7ee1aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:46:53.560319 7f8c7ee1aa80 Options.table_factory: BlockBasedTable
+2021/03/14-07:46:53.560335 7f8c7ee1aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x171e820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1703f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:46:53.560336 7f8c7ee1aa80 Options.write_buffer_size: 134217728
+2021/03/14-07:46:53.560337 7f8c7ee1aa80 Options.max_write_buffer_number: 6
+2021/03/14-07:46:53.560338 7f8c7ee1aa80 Options.compression[0]: NoCompression
+2021/03/14-07:46:53.560338 7f8c7ee1aa80 Options.compression[1]: NoCompression
+2021/03/14-07:46:53.560339 7f8c7ee1aa80 Options.compression[2]: Snappy
+2021/03/14-07:46:53.560340 7f8c7ee1aa80 Options.compression[3]: Snappy
+2021/03/14-07:46:53.560340 7f8c7ee1aa80 Options.compression[4]: Snappy
+2021/03/14-07:46:53.560341 7f8c7ee1aa80 Options.compression[5]: Snappy
+2021/03/14-07:46:53.560341 7f8c7ee1aa80 Options.compression[6]: Snappy
+2021/03/14-07:46:53.560342 7f8c7ee1aa80 Options.bottommost_compression: Disabled
+2021/03/14-07:46:53.560343 7f8c7ee1aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:46:53.560344 7f8c7ee1aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:46:53.560344 7f8c7ee1aa80 Options.num_levels: 7
+2021/03/14-07:46:53.560345 7f8c7ee1aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:46:53.560345 7f8c7ee1aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:46:53.560346 7f8c7ee1aa80 Options.compression_opts.window_bits: -14
+2021/03/14-07:46:53.560347 7f8c7ee1aa80 Options.compression_opts.level: -1
+2021/03/14-07:46:53.560347 7f8c7ee1aa80 Options.compression_opts.strategy: 0
+2021/03/14-07:46:53.560348 7f8c7ee1aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:46:53.560348 7f8c7ee1aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:46:53.560349 7f8c7ee1aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:46:53.560350 7f8c7ee1aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:46:53.560350 7f8c7ee1aa80 Options.target_file_size_base: 67108864
+2021/03/14-07:46:53.560351 7f8c7ee1aa80 Options.target_file_size_multiplier: 1
+2021/03/14-07:46:53.560351 7f8c7ee1aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:46:53.560352 7f8c7ee1aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:46:53.560353 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:46:53.560354 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:46:53.560362 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:46:53.560363 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:46:53.560364 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:46:53.560364 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:46:53.560365 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:46:53.560365 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:46:53.560366 7f8c7ee1aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:46:53.560367 7f8c7ee1aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:46:53.560367 7f8c7ee1aa80 Options.arena_block_size: 16777216
+2021/03/14-07:46:53.560368 7f8c7ee1aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:46:53.560368 7f8c7ee1aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:46:53.560369 7f8c7ee1aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:46:53.560370 7f8c7ee1aa80 Options.disable_auto_compactions: 0
+2021/03/14-07:46:53.560371 7f8c7ee1aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:46:53.560372 7f8c7ee1aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:46:53.560373 7f8c7ee1aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:46:53.560373 7f8c7ee1aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:46:53.560374 7f8c7ee1aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:46:53.560375 7f8c7ee1aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:46:53.560375 7f8c7ee1aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:46:53.560376 7f8c7ee1aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:46:53.560377 7f8c7ee1aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:46:53.560377 7f8c7ee1aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:46:53.560378 7f8c7ee1aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:46:53.560379 7f8c7ee1aa80 Options.table_properties_collectors:
+2021/03/14-07:46:53.560379 7f8c7ee1aa80 Options.inplace_update_support: 0
+2021/03/14-07:46:53.560380 7f8c7ee1aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:46:53.560380 7f8c7ee1aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:46:53.560381 7f8c7ee1aa80 Options.memtable_huge_page_size: 0
+2021/03/14-07:46:53.560382 7f8c7ee1aa80 Options.bloom_locality: 0
+2021/03/14-07:46:53.560382 7f8c7ee1aa80 Options.max_successive_merges: 0
+2021/03/14-07:46:53.560383 7f8c7ee1aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:46:53.560384 7f8c7ee1aa80 Options.paranoid_file_checks: 0
+2021/03/14-07:46:53.560384 7f8c7ee1aa80 Options.force_consistency_checks: 0
+2021/03/14-07:46:53.560385 7f8c7ee1aa80 Options.report_bg_io_stats: 0
+2021/03/14-07:46:53.560780 7f8c7ee1aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:46:53.560783 7f8c7ee1aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:46:53.560950 7f8c7ee1aa80 EVENT_LOG_v1 {"time_micros": 1615704413560939, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:46:53.560956 7f8c7ee1aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:46:54.327731 7f8c7ee1aa80 EVENT_LOG_v1 {"time_micros": 1615704414327728, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704415084973 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704415084973
new file mode 100644
index 0000000..76e9bc8
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704415084973
@@ -0,0 +1,186 @@
+2021/03/14-07:46:54.341287 7f8c7ee1aa80 RocksDB version: 5.11.3
+2021/03/14-07:46:54.341342 7f8c7ee1aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:46:54.341343 7f8c7ee1aa80 Compile date Mar 13 2021
+2021/03/14-07:46:54.341348 7f8c7ee1aa80 DB SUMMARY
+2021/03/14-07:46:54.341504 7f8c7ee1aa80 CURRENT file: CURRENT
+2021/03/14-07:46:54.341505 7f8c7ee1aa80 IDENTITY file: IDENTITY
+2021/03/14-07:46:54.341521 7f8c7ee1aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:46:54.341522 7f8c7ee1aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:46:54.341523 7f8c7ee1aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:46:54.341528 7f8c7ee1aa80 Options.error_if_exists: 0
+2021/03/14-07:46:54.341529 7f8c7ee1aa80 Options.create_if_missing: 1
+2021/03/14-07:46:54.341530 7f8c7ee1aa80 Options.paranoid_checks: 1
+2021/03/14-07:46:54.341530 7f8c7ee1aa80 Options.env: 0x7f8c7f7d4080
+2021/03/14-07:46:54.341531 7f8c7ee1aa80 Options.info_log: 0x1726fa0
+2021/03/14-07:46:54.341531 7f8c7ee1aa80 Options.max_file_opening_threads: 16
+2021/03/14-07:46:54.341532 7f8c7ee1aa80 Options.statistics: (nil)
+2021/03/14-07:46:54.341533 7f8c7ee1aa80 Options.use_fsync: 0
+2021/03/14-07:46:54.341533 7f8c7ee1aa80 Options.max_log_file_size: 0
+2021/03/14-07:46:54.341534 7f8c7ee1aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:46:54.341535 7f8c7ee1aa80 Options.log_file_time_to_roll: 0
+2021/03/14-07:46:54.341535 7f8c7ee1aa80 Options.keep_log_file_num: 1000
+2021/03/14-07:46:54.341536 7f8c7ee1aa80 Options.recycle_log_file_num: 0
+2021/03/14-07:46:54.341536 7f8c7ee1aa80 Options.allow_fallocate: 1
+2021/03/14-07:46:54.341537 7f8c7ee1aa80 Options.allow_mmap_reads: 0
+2021/03/14-07:46:54.341537 7f8c7ee1aa80 Options.allow_mmap_writes: 0
+2021/03/14-07:46:54.341538 7f8c7ee1aa80 Options.use_direct_reads: 0
+2021/03/14-07:46:54.341538 7f8c7ee1aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:46:54.341539 7f8c7ee1aa80 Options.create_missing_column_families: 0
+2021/03/14-07:46:54.341540 7f8c7ee1aa80 Options.db_log_dir:
+2021/03/14-07:46:54.341540 7f8c7ee1aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:46:54.341541 7f8c7ee1aa80 Options.table_cache_numshardbits: 6
+2021/03/14-07:46:54.341541 7f8c7ee1aa80 Options.max_subcompactions: 1
+2021/03/14-07:46:54.341542 7f8c7ee1aa80 Options.max_background_flushes: -1
+2021/03/14-07:46:54.341542 7f8c7ee1aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:46:54.341543 7f8c7ee1aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:46:54.341544 7f8c7ee1aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:46:54.341544 7f8c7ee1aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:46:54.341545 7f8c7ee1aa80 Options.advise_random_on_open: 1
+2021/03/14-07:46:54.341545 7f8c7ee1aa80 Options.db_write_buffer_size: 0
+2021/03/14-07:46:54.341546 7f8c7ee1aa80 Options.write_buffer_manager: 0x170ee90
+2021/03/14-07:46:54.341546 7f8c7ee1aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:46:54.341547 7f8c7ee1aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:46:54.341547 7f8c7ee1aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:46:54.341548 7f8c7ee1aa80 Options.use_adaptive_mutex: 0
+2021/03/14-07:46:54.341548 7f8c7ee1aa80 Options.rate_limiter: (nil)
+2021/03/14-07:46:54.341550 7f8c7ee1aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:46:54.341557 7f8c7ee1aa80 Options.wal_recovery_mode: 2
+2021/03/14-07:46:54.341558 7f8c7ee1aa80 Options.enable_thread_tracking: 0
+2021/03/14-07:46:54.341558 7f8c7ee1aa80 Options.enable_pipelined_write: 0
+2021/03/14-07:46:54.341559 7f8c7ee1aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:46:54.341559 7f8c7ee1aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:46:54.341560 7f8c7ee1aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:46:54.341561 7f8c7ee1aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:46:54.341561 7f8c7ee1aa80 Options.row_cache: None
+2021/03/14-07:46:54.341562 7f8c7ee1aa80 Options.wal_filter: None
+2021/03/14-07:46:54.341562 7f8c7ee1aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:46:54.341563 7f8c7ee1aa80 Options.allow_ingest_behind: 0
+2021/03/14-07:46:54.341563 7f8c7ee1aa80 Options.preserve_deletes: 0
+2021/03/14-07:46:54.341564 7f8c7ee1aa80 Options.two_write_queues: 0
+2021/03/14-07:46:54.341564 7f8c7ee1aa80 Options.manual_wal_flush: 0
+2021/03/14-07:46:54.341566 7f8c7ee1aa80 Options.max_background_jobs: 16
+2021/03/14-07:46:54.341566 7f8c7ee1aa80 Options.max_background_compactions: -1
+2021/03/14-07:46:54.341567 7f8c7ee1aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:46:54.341567 7f8c7ee1aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:46:54.341568 7f8c7ee1aa80 Options.delayed_write_rate : 16777216
+2021/03/14-07:46:54.341569 7f8c7ee1aa80 Options.max_total_wal_size: 0
+2021/03/14-07:46:54.341569 7f8c7ee1aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:46:54.341570 7f8c7ee1aa80 Options.stats_dump_period_sec: 600
+2021/03/14-07:46:54.341570 7f8c7ee1aa80 Options.max_open_files: -1
+2021/03/14-07:46:54.341571 7f8c7ee1aa80 Options.bytes_per_sync: 0
+2021/03/14-07:46:54.341571 7f8c7ee1aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:46:54.341572 7f8c7ee1aa80 Options.compaction_readahead_size: 0
+2021/03/14-07:46:54.341572 7f8c7ee1aa80 Compression algorithms supported:
+2021/03/14-07:46:54.341573 7f8c7ee1aa80 Snappy supported: 1
+2021/03/14-07:46:54.341574 7f8c7ee1aa80 Zlib supported: 1
+2021/03/14-07:46:54.341574 7f8c7ee1aa80 Bzip supported: 1
+2021/03/14-07:46:54.341575 7f8c7ee1aa80 LZ4 supported: 1
+2021/03/14-07:46:54.341575 7f8c7ee1aa80 ZSTDNotFinal supported: 1
+2021/03/14-07:46:54.341579 7f8c7ee1aa80 ZSTD supported: 1
+2021/03/14-07:46:54.341582 7f8c7ee1aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:46:54.341583 7f8c7ee1aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:46:54.341674 7f8c7ee1aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:46:54.341727 7f8c7ee1aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:46:54.341729 7f8c7ee1aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:46:54.341729 7f8c7ee1aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:46:54.341730 7f8c7ee1aa80 Options.compaction_filter: None
+2021/03/14-07:46:54.341731 7f8c7ee1aa80 Options.compaction_filter_factory: None
+2021/03/14-07:46:54.341731 7f8c7ee1aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:46:54.341732 7f8c7ee1aa80 Options.table_factory: BlockBasedTable
+2021/03/14-07:46:54.341747 7f8c7ee1aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x171e820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1703f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:46:54.341748 7f8c7ee1aa80 Options.write_buffer_size: 134217728
+2021/03/14-07:46:54.341749 7f8c7ee1aa80 Options.max_write_buffer_number: 6
+2021/03/14-07:46:54.341749 7f8c7ee1aa80 Options.compression[0]: NoCompression
+2021/03/14-07:46:54.341750 7f8c7ee1aa80 Options.compression[1]: NoCompression
+2021/03/14-07:46:54.341751 7f8c7ee1aa80 Options.compression[2]: Snappy
+2021/03/14-07:46:54.341751 7f8c7ee1aa80 Options.compression[3]: Snappy
+2021/03/14-07:46:54.341752 7f8c7ee1aa80 Options.compression[4]: Snappy
+2021/03/14-07:46:54.341752 7f8c7ee1aa80 Options.compression[5]: Snappy
+2021/03/14-07:46:54.341753 7f8c7ee1aa80 Options.compression[6]: Snappy
+2021/03/14-07:46:54.341754 7f8c7ee1aa80 Options.bottommost_compression: Disabled
+2021/03/14-07:46:54.341754 7f8c7ee1aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:46:54.341755 7f8c7ee1aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:46:54.341755 7f8c7ee1aa80 Options.num_levels: 7
+2021/03/14-07:46:54.341756 7f8c7ee1aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:46:54.341757 7f8c7ee1aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:46:54.341757 7f8c7ee1aa80 Options.compression_opts.window_bits: -14
+2021/03/14-07:46:54.341758 7f8c7ee1aa80 Options.compression_opts.level: -1
+2021/03/14-07:46:54.341758 7f8c7ee1aa80 Options.compression_opts.strategy: 0
+2021/03/14-07:46:54.341759 7f8c7ee1aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:46:54.341759 7f8c7ee1aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:46:54.341760 7f8c7ee1aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:46:54.341760 7f8c7ee1aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:46:54.341761 7f8c7ee1aa80 Options.target_file_size_base: 67108864
+2021/03/14-07:46:54.341762 7f8c7ee1aa80 Options.target_file_size_multiplier: 1
+2021/03/14-07:46:54.341762 7f8c7ee1aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:46:54.341763 7f8c7ee1aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:46:54.341763 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:46:54.341765 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:46:54.341772 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:46:54.341772 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:46:54.341773 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:46:54.341774 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:46:54.341774 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:46:54.341775 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:46:54.341775 7f8c7ee1aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:46:54.341776 7f8c7ee1aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:46:54.341776 7f8c7ee1aa80 Options.arena_block_size: 16777216
+2021/03/14-07:46:54.341777 7f8c7ee1aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:46:54.341777 7f8c7ee1aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:46:54.341778 7f8c7ee1aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:46:54.341779 7f8c7ee1aa80 Options.disable_auto_compactions: 0
+2021/03/14-07:46:54.341780 7f8c7ee1aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:46:54.341781 7f8c7ee1aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:46:54.341782 7f8c7ee1aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:46:54.341782 7f8c7ee1aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:46:54.341783 7f8c7ee1aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:46:54.341783 7f8c7ee1aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:46:54.341784 7f8c7ee1aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:46:54.341785 7f8c7ee1aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:46:54.341785 7f8c7ee1aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:46:54.341786 7f8c7ee1aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:46:54.341787 7f8c7ee1aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:46:54.341787 7f8c7ee1aa80 Options.table_properties_collectors:
+2021/03/14-07:46:54.341788 7f8c7ee1aa80 Options.inplace_update_support: 0
+2021/03/14-07:46:54.341788 7f8c7ee1aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:46:54.341789 7f8c7ee1aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:46:54.341790 7f8c7ee1aa80 Options.memtable_huge_page_size: 0
+2021/03/14-07:46:54.341790 7f8c7ee1aa80 Options.bloom_locality: 0
+2021/03/14-07:46:54.341791 7f8c7ee1aa80 Options.max_successive_merges: 0
+2021/03/14-07:46:54.341791 7f8c7ee1aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:46:54.341792 7f8c7ee1aa80 Options.paranoid_file_checks: 0
+2021/03/14-07:46:54.341792 7f8c7ee1aa80 Options.force_consistency_checks: 0
+2021/03/14-07:46:54.341793 7f8c7ee1aa80 Options.report_bg_io_stats: 0
+2021/03/14-07:46:54.342164 7f8c7ee1aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:46:54.342166 7f8c7ee1aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:46:54.342332 7f8c7ee1aa80 EVENT_LOG_v1 {"time_micros": 1615704414342322, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:46:54.342338 7f8c7ee1aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:46:55.072350 7f8c7ee1aa80 EVENT_LOG_v1 {"time_micros": 1615704415072347, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704415821266 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704415821266
new file mode 100644
index 0000000..973a0de
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704415821266
@@ -0,0 +1,186 @@
+2021/03/14-07:46:55.085395 7f8c7ee1aa80 RocksDB version: 5.11.3
+2021/03/14-07:46:55.085451 7f8c7ee1aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:46:55.085452 7f8c7ee1aa80 Compile date Mar 13 2021
+2021/03/14-07:46:55.085457 7f8c7ee1aa80 DB SUMMARY
+2021/03/14-07:46:55.085616 7f8c7ee1aa80 CURRENT file: CURRENT
+2021/03/14-07:46:55.085617 7f8c7ee1aa80 IDENTITY file: IDENTITY
+2021/03/14-07:46:55.085633 7f8c7ee1aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:46:55.085634 7f8c7ee1aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:46:55.085635 7f8c7ee1aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:46:55.085640 7f8c7ee1aa80 Options.error_if_exists: 0
+2021/03/14-07:46:55.085641 7f8c7ee1aa80 Options.create_if_missing: 1
+2021/03/14-07:46:55.085642 7f8c7ee1aa80 Options.paranoid_checks: 1
+2021/03/14-07:46:55.085642 7f8c7ee1aa80 Options.env: 0x7f8c7f7d4080
+2021/03/14-07:46:55.085643 7f8c7ee1aa80 Options.info_log: 0x1726fa0
+2021/03/14-07:46:55.085644 7f8c7ee1aa80 Options.max_file_opening_threads: 16
+2021/03/14-07:46:55.085644 7f8c7ee1aa80 Options.statistics: (nil)
+2021/03/14-07:46:55.085645 7f8c7ee1aa80 Options.use_fsync: 0
+2021/03/14-07:46:55.085645 7f8c7ee1aa80 Options.max_log_file_size: 0
+2021/03/14-07:46:55.085646 7f8c7ee1aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:46:55.085647 7f8c7ee1aa80 Options.log_file_time_to_roll: 0
+2021/03/14-07:46:55.085647 7f8c7ee1aa80 Options.keep_log_file_num: 1000
+2021/03/14-07:46:55.085648 7f8c7ee1aa80 Options.recycle_log_file_num: 0
+2021/03/14-07:46:55.085648 7f8c7ee1aa80 Options.allow_fallocate: 1
+2021/03/14-07:46:55.085649 7f8c7ee1aa80 Options.allow_mmap_reads: 0
+2021/03/14-07:46:55.085649 7f8c7ee1aa80 Options.allow_mmap_writes: 0
+2021/03/14-07:46:55.085650 7f8c7ee1aa80 Options.use_direct_reads: 0
+2021/03/14-07:46:55.085651 7f8c7ee1aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:46:55.085651 7f8c7ee1aa80 Options.create_missing_column_families: 0
+2021/03/14-07:46:55.085652 7f8c7ee1aa80 Options.db_log_dir:
+2021/03/14-07:46:55.085652 7f8c7ee1aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:46:55.085653 7f8c7ee1aa80 Options.table_cache_numshardbits: 6
+2021/03/14-07:46:55.085653 7f8c7ee1aa80 Options.max_subcompactions: 1
+2021/03/14-07:46:55.085654 7f8c7ee1aa80 Options.max_background_flushes: -1
+2021/03/14-07:46:55.085655 7f8c7ee1aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:46:55.085655 7f8c7ee1aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:46:55.085656 7f8c7ee1aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:46:55.085656 7f8c7ee1aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:46:55.085657 7f8c7ee1aa80 Options.advise_random_on_open: 1
+2021/03/14-07:46:55.085657 7f8c7ee1aa80 Options.db_write_buffer_size: 0
+2021/03/14-07:46:55.085658 7f8c7ee1aa80 Options.write_buffer_manager: 0x170ee90
+2021/03/14-07:46:55.085659 7f8c7ee1aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:46:55.085659 7f8c7ee1aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:46:55.085660 7f8c7ee1aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:46:55.085660 7f8c7ee1aa80 Options.use_adaptive_mutex: 0
+2021/03/14-07:46:55.085661 7f8c7ee1aa80 Options.rate_limiter: (nil)
+2021/03/14-07:46:55.085662 7f8c7ee1aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:46:55.085670 7f8c7ee1aa80 Options.wal_recovery_mode: 2
+2021/03/14-07:46:55.085670 7f8c7ee1aa80 Options.enable_thread_tracking: 0
+2021/03/14-07:46:55.085671 7f8c7ee1aa80 Options.enable_pipelined_write: 0
+2021/03/14-07:46:55.085671 7f8c7ee1aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:46:55.085672 7f8c7ee1aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:46:55.085673 7f8c7ee1aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:46:55.085673 7f8c7ee1aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:46:55.085674 7f8c7ee1aa80 Options.row_cache: None
+2021/03/14-07:46:55.085674 7f8c7ee1aa80 Options.wal_filter: None
+2021/03/14-07:46:55.085675 7f8c7ee1aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:46:55.085676 7f8c7ee1aa80 Options.allow_ingest_behind: 0
+2021/03/14-07:46:55.085676 7f8c7ee1aa80 Options.preserve_deletes: 0
+2021/03/14-07:46:55.085677 7f8c7ee1aa80 Options.two_write_queues: 0
+2021/03/14-07:46:55.085677 7f8c7ee1aa80 Options.manual_wal_flush: 0
+2021/03/14-07:46:55.085678 7f8c7ee1aa80 Options.max_background_jobs: 16
+2021/03/14-07:46:55.085679 7f8c7ee1aa80 Options.max_background_compactions: -1
+2021/03/14-07:46:55.085680 7f8c7ee1aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:46:55.085680 7f8c7ee1aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:46:55.085681 7f8c7ee1aa80 Options.delayed_write_rate : 16777216
+2021/03/14-07:46:55.085681 7f8c7ee1aa80 Options.max_total_wal_size: 0
+2021/03/14-07:46:55.085682 7f8c7ee1aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:46:55.085682 7f8c7ee1aa80 Options.stats_dump_period_sec: 600
+2021/03/14-07:46:55.085683 7f8c7ee1aa80 Options.max_open_files: -1
+2021/03/14-07:46:55.085684 7f8c7ee1aa80 Options.bytes_per_sync: 0
+2021/03/14-07:46:55.085684 7f8c7ee1aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:46:55.085685 7f8c7ee1aa80 Options.compaction_readahead_size: 0
+2021/03/14-07:46:55.085685 7f8c7ee1aa80 Compression algorithms supported:
+2021/03/14-07:46:55.085686 7f8c7ee1aa80 Snappy supported: 1
+2021/03/14-07:46:55.085686 7f8c7ee1aa80 Zlib supported: 1
+2021/03/14-07:46:55.085687 7f8c7ee1aa80 Bzip supported: 1
+2021/03/14-07:46:55.085688 7f8c7ee1aa80 LZ4 supported: 1
+2021/03/14-07:46:55.085688 7f8c7ee1aa80 ZSTDNotFinal supported: 1
+2021/03/14-07:46:55.085692 7f8c7ee1aa80 ZSTD supported: 1
+2021/03/14-07:46:55.085695 7f8c7ee1aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:46:55.085696 7f8c7ee1aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:46:55.085792 7f8c7ee1aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:46:55.085845 7f8c7ee1aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:46:55.085846 7f8c7ee1aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:46:55.085847 7f8c7ee1aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:46:55.085848 7f8c7ee1aa80 Options.compaction_filter: None
+2021/03/14-07:46:55.085849 7f8c7ee1aa80 Options.compaction_filter_factory: None
+2021/03/14-07:46:55.085849 7f8c7ee1aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:46:55.085850 7f8c7ee1aa80 Options.table_factory: BlockBasedTable
+2021/03/14-07:46:55.085865 7f8c7ee1aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x171e820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1703f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:46:55.085866 7f8c7ee1aa80 Options.write_buffer_size: 134217728
+2021/03/14-07:46:55.085867 7f8c7ee1aa80 Options.max_write_buffer_number: 6
+2021/03/14-07:46:55.085868 7f8c7ee1aa80 Options.compression[0]: NoCompression
+2021/03/14-07:46:55.085868 7f8c7ee1aa80 Options.compression[1]: NoCompression
+2021/03/14-07:46:55.085869 7f8c7ee1aa80 Options.compression[2]: Snappy
+2021/03/14-07:46:55.085870 7f8c7ee1aa80 Options.compression[3]: Snappy
+2021/03/14-07:46:55.085870 7f8c7ee1aa80 Options.compression[4]: Snappy
+2021/03/14-07:46:55.085871 7f8c7ee1aa80 Options.compression[5]: Snappy
+2021/03/14-07:46:55.085871 7f8c7ee1aa80 Options.compression[6]: Snappy
+2021/03/14-07:46:55.085872 7f8c7ee1aa80 Options.bottommost_compression: Disabled
+2021/03/14-07:46:55.085873 7f8c7ee1aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:46:55.085874 7f8c7ee1aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:46:55.085874 7f8c7ee1aa80 Options.num_levels: 7
+2021/03/14-07:46:55.085875 7f8c7ee1aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:46:55.085875 7f8c7ee1aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:46:55.085876 7f8c7ee1aa80 Options.compression_opts.window_bits: -14
+2021/03/14-07:46:55.085877 7f8c7ee1aa80 Options.compression_opts.level: -1
+2021/03/14-07:46:55.085877 7f8c7ee1aa80 Options.compression_opts.strategy: 0
+2021/03/14-07:46:55.085878 7f8c7ee1aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:46:55.085878 7f8c7ee1aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:46:55.085879 7f8c7ee1aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:46:55.085879 7f8c7ee1aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:46:55.085880 7f8c7ee1aa80 Options.target_file_size_base: 67108864
+2021/03/14-07:46:55.085881 7f8c7ee1aa80 Options.target_file_size_multiplier: 1
+2021/03/14-07:46:55.085881 7f8c7ee1aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:46:55.085882 7f8c7ee1aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:46:55.085882 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:46:55.085884 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:46:55.085891 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:46:55.085892 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:46:55.085892 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:46:55.085893 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:46:55.085894 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:46:55.085894 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:46:55.085895 7f8c7ee1aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:46:55.085895 7f8c7ee1aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:46:55.085896 7f8c7ee1aa80 Options.arena_block_size: 16777216
+2021/03/14-07:46:55.085896 7f8c7ee1aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:46:55.085897 7f8c7ee1aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:46:55.085898 7f8c7ee1aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:46:55.085898 7f8c7ee1aa80 Options.disable_auto_compactions: 0
+2021/03/14-07:46:55.085900 7f8c7ee1aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:46:55.085900 7f8c7ee1aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:46:55.085901 7f8c7ee1aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:46:55.085902 7f8c7ee1aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:46:55.085902 7f8c7ee1aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:46:55.085903 7f8c7ee1aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:46:55.085903 7f8c7ee1aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:46:55.085904 7f8c7ee1aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:46:55.085905 7f8c7ee1aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:46:55.085906 7f8c7ee1aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:46:55.085906 7f8c7ee1aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:46:55.085907 7f8c7ee1aa80 Options.table_properties_collectors:
+2021/03/14-07:46:55.085907 7f8c7ee1aa80 Options.inplace_update_support: 0
+2021/03/14-07:46:55.085908 7f8c7ee1aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:46:55.085908 7f8c7ee1aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:46:55.085909 7f8c7ee1aa80 Options.memtable_huge_page_size: 0
+2021/03/14-07:46:55.085910 7f8c7ee1aa80 Options.bloom_locality: 0
+2021/03/14-07:46:55.085910 7f8c7ee1aa80 Options.max_successive_merges: 0
+2021/03/14-07:46:55.085911 7f8c7ee1aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:46:55.085912 7f8c7ee1aa80 Options.paranoid_file_checks: 0
+2021/03/14-07:46:55.085912 7f8c7ee1aa80 Options.force_consistency_checks: 0
+2021/03/14-07:46:55.085913 7f8c7ee1aa80 Options.report_bg_io_stats: 0
+2021/03/14-07:46:55.086287 7f8c7ee1aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:46:55.086289 7f8c7ee1aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:46:55.086445 7f8c7ee1aa80 EVENT_LOG_v1 {"time_micros": 1615704415086435, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:46:55.086450 7f8c7ee1aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:46:55.808126 7f8c7ee1aa80 EVENT_LOG_v1 {"time_micros": 1615704415808123, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704437556879 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704437556879
new file mode 100644
index 0000000..c4d4974
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704437556879
@@ -0,0 +1,186 @@
+2021/03/14-07:46:55.821668 7f8c7ee1aa80 RocksDB version: 5.11.3
+2021/03/14-07:46:55.821722 7f8c7ee1aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:46:55.821724 7f8c7ee1aa80 Compile date Mar 13 2021
+2021/03/14-07:46:55.821729 7f8c7ee1aa80 DB SUMMARY
+2021/03/14-07:46:55.821885 7f8c7ee1aa80 CURRENT file: CURRENT
+2021/03/14-07:46:55.821886 7f8c7ee1aa80 IDENTITY file: IDENTITY
+2021/03/14-07:46:55.821902 7f8c7ee1aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:46:55.821903 7f8c7ee1aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:46:55.821904 7f8c7ee1aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:46:55.821909 7f8c7ee1aa80 Options.error_if_exists: 0
+2021/03/14-07:46:55.821910 7f8c7ee1aa80 Options.create_if_missing: 1
+2021/03/14-07:46:55.821911 7f8c7ee1aa80 Options.paranoid_checks: 1
+2021/03/14-07:46:55.821911 7f8c7ee1aa80 Options.env: 0x7f8c7f7d4080
+2021/03/14-07:46:55.821912 7f8c7ee1aa80 Options.info_log: 0x1726fa0
+2021/03/14-07:46:55.821913 7f8c7ee1aa80 Options.max_file_opening_threads: 16
+2021/03/14-07:46:55.821913 7f8c7ee1aa80 Options.statistics: (nil)
+2021/03/14-07:46:55.821914 7f8c7ee1aa80 Options.use_fsync: 0
+2021/03/14-07:46:55.821914 7f8c7ee1aa80 Options.max_log_file_size: 0
+2021/03/14-07:46:55.821915 7f8c7ee1aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:46:55.821916 7f8c7ee1aa80 Options.log_file_time_to_roll: 0
+2021/03/14-07:46:55.821916 7f8c7ee1aa80 Options.keep_log_file_num: 1000
+2021/03/14-07:46:55.821917 7f8c7ee1aa80 Options.recycle_log_file_num: 0
+2021/03/14-07:46:55.821917 7f8c7ee1aa80 Options.allow_fallocate: 1
+2021/03/14-07:46:55.821918 7f8c7ee1aa80 Options.allow_mmap_reads: 0
+2021/03/14-07:46:55.821918 7f8c7ee1aa80 Options.allow_mmap_writes: 0
+2021/03/14-07:46:55.821919 7f8c7ee1aa80 Options.use_direct_reads: 0
+2021/03/14-07:46:55.821919 7f8c7ee1aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:46:55.821920 7f8c7ee1aa80 Options.create_missing_column_families: 0
+2021/03/14-07:46:55.821921 7f8c7ee1aa80 Options.db_log_dir:
+2021/03/14-07:46:55.821921 7f8c7ee1aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:46:55.821922 7f8c7ee1aa80 Options.table_cache_numshardbits: 6
+2021/03/14-07:46:55.821922 7f8c7ee1aa80 Options.max_subcompactions: 1
+2021/03/14-07:46:55.821923 7f8c7ee1aa80 Options.max_background_flushes: -1
+2021/03/14-07:46:55.821923 7f8c7ee1aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:46:55.821924 7f8c7ee1aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:46:55.821925 7f8c7ee1aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:46:55.821925 7f8c7ee1aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:46:55.821926 7f8c7ee1aa80 Options.advise_random_on_open: 1
+2021/03/14-07:46:55.821926 7f8c7ee1aa80 Options.db_write_buffer_size: 0
+2021/03/14-07:46:55.821927 7f8c7ee1aa80 Options.write_buffer_manager: 0x170ee90
+2021/03/14-07:46:55.821927 7f8c7ee1aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:46:55.821928 7f8c7ee1aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:46:55.821928 7f8c7ee1aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:46:55.821929 7f8c7ee1aa80 Options.use_adaptive_mutex: 0
+2021/03/14-07:46:55.821929 7f8c7ee1aa80 Options.rate_limiter: (nil)
+2021/03/14-07:46:55.821931 7f8c7ee1aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:46:55.821938 7f8c7ee1aa80 Options.wal_recovery_mode: 2
+2021/03/14-07:46:55.821938 7f8c7ee1aa80 Options.enable_thread_tracking: 0
+2021/03/14-07:46:55.821939 7f8c7ee1aa80 Options.enable_pipelined_write: 0
+2021/03/14-07:46:55.821940 7f8c7ee1aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:46:55.821940 7f8c7ee1aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:46:55.821941 7f8c7ee1aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:46:55.821941 7f8c7ee1aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:46:55.821942 7f8c7ee1aa80 Options.row_cache: None
+2021/03/14-07:46:55.821942 7f8c7ee1aa80 Options.wal_filter: None
+2021/03/14-07:46:55.821943 7f8c7ee1aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:46:55.821944 7f8c7ee1aa80 Options.allow_ingest_behind: 0
+2021/03/14-07:46:55.821944 7f8c7ee1aa80 Options.preserve_deletes: 0
+2021/03/14-07:46:55.821945 7f8c7ee1aa80 Options.two_write_queues: 0
+2021/03/14-07:46:55.821945 7f8c7ee1aa80 Options.manual_wal_flush: 0
+2021/03/14-07:46:55.821946 7f8c7ee1aa80 Options.max_background_jobs: 16
+2021/03/14-07:46:55.821947 7f8c7ee1aa80 Options.max_background_compactions: -1
+2021/03/14-07:46:55.821947 7f8c7ee1aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:46:55.821948 7f8c7ee1aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:46:55.821948 7f8c7ee1aa80 Options.delayed_write_rate : 16777216
+2021/03/14-07:46:55.821949 7f8c7ee1aa80 Options.max_total_wal_size: 0
+2021/03/14-07:46:55.821950 7f8c7ee1aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:46:55.821950 7f8c7ee1aa80 Options.stats_dump_period_sec: 600
+2021/03/14-07:46:55.821951 7f8c7ee1aa80 Options.max_open_files: -1
+2021/03/14-07:46:55.821951 7f8c7ee1aa80 Options.bytes_per_sync: 0
+2021/03/14-07:46:55.821952 7f8c7ee1aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:46:55.821953 7f8c7ee1aa80 Options.compaction_readahead_size: 0
+2021/03/14-07:46:55.821953 7f8c7ee1aa80 Compression algorithms supported:
+2021/03/14-07:46:55.821954 7f8c7ee1aa80 Snappy supported: 1
+2021/03/14-07:46:55.821954 7f8c7ee1aa80 Zlib supported: 1
+2021/03/14-07:46:55.821955 7f8c7ee1aa80 Bzip supported: 1
+2021/03/14-07:46:55.821955 7f8c7ee1aa80 LZ4 supported: 1
+2021/03/14-07:46:55.821956 7f8c7ee1aa80 ZSTDNotFinal supported: 1
+2021/03/14-07:46:55.821960 7f8c7ee1aa80 ZSTD supported: 1
+2021/03/14-07:46:55.821963 7f8c7ee1aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:46:55.821964 7f8c7ee1aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:46:55.822055 7f8c7ee1aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:46:55.822108 7f8c7ee1aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:46:55.822109 7f8c7ee1aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:46:55.822110 7f8c7ee1aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:46:55.822111 7f8c7ee1aa80 Options.compaction_filter: None
+2021/03/14-07:46:55.822111 7f8c7ee1aa80 Options.compaction_filter_factory: None
+2021/03/14-07:46:55.822112 7f8c7ee1aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:46:55.822113 7f8c7ee1aa80 Options.table_factory: BlockBasedTable
+2021/03/14-07:46:55.822128 7f8c7ee1aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x171e820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1703f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:46:55.822129 7f8c7ee1aa80 Options.write_buffer_size: 134217728
+2021/03/14-07:46:55.822130 7f8c7ee1aa80 Options.max_write_buffer_number: 6
+2021/03/14-07:46:55.822130 7f8c7ee1aa80 Options.compression[0]: NoCompression
+2021/03/14-07:46:55.822131 7f8c7ee1aa80 Options.compression[1]: NoCompression
+2021/03/14-07:46:55.822132 7f8c7ee1aa80 Options.compression[2]: Snappy
+2021/03/14-07:46:55.822132 7f8c7ee1aa80 Options.compression[3]: Snappy
+2021/03/14-07:46:55.822133 7f8c7ee1aa80 Options.compression[4]: Snappy
+2021/03/14-07:46:55.822133 7f8c7ee1aa80 Options.compression[5]: Snappy
+2021/03/14-07:46:55.822134 7f8c7ee1aa80 Options.compression[6]: Snappy
+2021/03/14-07:46:55.822135 7f8c7ee1aa80 Options.bottommost_compression: Disabled
+2021/03/14-07:46:55.822135 7f8c7ee1aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:46:55.822136 7f8c7ee1aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:46:55.822137 7f8c7ee1aa80 Options.num_levels: 7
+2021/03/14-07:46:55.822137 7f8c7ee1aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:46:55.822138 7f8c7ee1aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:46:55.822138 7f8c7ee1aa80 Options.compression_opts.window_bits: -14
+2021/03/14-07:46:55.822139 7f8c7ee1aa80 Options.compression_opts.level: -1
+2021/03/14-07:46:55.822140 7f8c7ee1aa80 Options.compression_opts.strategy: 0
+2021/03/14-07:46:55.822140 7f8c7ee1aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:46:55.822141 7f8c7ee1aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:46:55.822141 7f8c7ee1aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:46:55.822142 7f8c7ee1aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:46:55.822142 7f8c7ee1aa80 Options.target_file_size_base: 67108864
+2021/03/14-07:46:55.822143 7f8c7ee1aa80 Options.target_file_size_multiplier: 1
+2021/03/14-07:46:55.822144 7f8c7ee1aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:46:55.822144 7f8c7ee1aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:46:55.822145 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:46:55.822146 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:46:55.822153 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:46:55.822154 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:46:55.822154 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:46:55.822155 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:46:55.822156 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:46:55.822156 7f8c7ee1aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:46:55.822157 7f8c7ee1aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:46:55.822157 7f8c7ee1aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:46:55.822158 7f8c7ee1aa80 Options.arena_block_size: 16777216
+2021/03/14-07:46:55.822158 7f8c7ee1aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:46:55.822159 7f8c7ee1aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:46:55.822160 7f8c7ee1aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:46:55.822160 7f8c7ee1aa80 Options.disable_auto_compactions: 0
+2021/03/14-07:46:55.822162 7f8c7ee1aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:46:55.822163 7f8c7ee1aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:46:55.822163 7f8c7ee1aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:46:55.822164 7f8c7ee1aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:46:55.822164 7f8c7ee1aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:46:55.822165 7f8c7ee1aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:46:55.822165 7f8c7ee1aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:46:55.822167 7f8c7ee1aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:46:55.822167 7f8c7ee1aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:46:55.822168 7f8c7ee1aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:46:55.822168 7f8c7ee1aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:46:55.822169 7f8c7ee1aa80 Options.table_properties_collectors:
+2021/03/14-07:46:55.822169 7f8c7ee1aa80 Options.inplace_update_support: 0
+2021/03/14-07:46:55.822170 7f8c7ee1aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:46:55.822171 7f8c7ee1aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:46:55.822171 7f8c7ee1aa80 Options.memtable_huge_page_size: 0
+2021/03/14-07:46:55.822172 7f8c7ee1aa80 Options.bloom_locality: 0
+2021/03/14-07:46:55.822172 7f8c7ee1aa80 Options.max_successive_merges: 0
+2021/03/14-07:46:55.822173 7f8c7ee1aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:46:55.822174 7f8c7ee1aa80 Options.paranoid_file_checks: 0
+2021/03/14-07:46:55.822174 7f8c7ee1aa80 Options.force_consistency_checks: 0
+2021/03/14-07:46:55.822175 7f8c7ee1aa80 Options.report_bg_io_stats: 0
+2021/03/14-07:46:55.822559 7f8c7ee1aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:46:55.822562 7f8c7ee1aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:46:55.822718 7f8c7ee1aa80 EVENT_LOG_v1 {"time_micros": 1615704415822707, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:46:55.822724 7f8c7ee1aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:46:56.543843 7f8c7ee1aa80 EVENT_LOG_v1 {"time_micros": 1615704416543840, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704438340616 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704438340616
new file mode 100644
index 0000000..1dc20dd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704438340616
@@ -0,0 +1,186 @@
+2021/03/14-07:47:17.557342 7fd7a84aea80 RocksDB version: 5.11.3
+2021/03/14-07:47:17.557402 7fd7a84aea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:47:17.557404 7fd7a84aea80 Compile date Mar 13 2021
+2021/03/14-07:47:17.557407 7fd7a84aea80 DB SUMMARY
+2021/03/14-07:47:17.557576 7fd7a84aea80 CURRENT file: CURRENT
+2021/03/14-07:47:17.557577 7fd7a84aea80 IDENTITY file: IDENTITY
+2021/03/14-07:47:17.557593 7fd7a84aea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:47:17.557594 7fd7a84aea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:47:17.557595 7fd7a84aea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:47:17.557601 7fd7a84aea80 Options.error_if_exists: 0
+2021/03/14-07:47:17.557602 7fd7a84aea80 Options.create_if_missing: 1
+2021/03/14-07:47:17.557603 7fd7a84aea80 Options.paranoid_checks: 1
+2021/03/14-07:47:17.557603 7fd7a84aea80 Options.env: 0x7fd7a8e68080
+2021/03/14-07:47:17.557604 7fd7a84aea80 Options.info_log: 0x1a1cfa0
+2021/03/14-07:47:17.557604 7fd7a84aea80 Options.max_file_opening_threads: 16
+2021/03/14-07:47:17.557605 7fd7a84aea80 Options.statistics: (nil)
+2021/03/14-07:47:17.557606 7fd7a84aea80 Options.use_fsync: 0
+2021/03/14-07:47:17.557606 7fd7a84aea80 Options.max_log_file_size: 0
+2021/03/14-07:47:17.557607 7fd7a84aea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:47:17.557608 7fd7a84aea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:47:17.557608 7fd7a84aea80 Options.keep_log_file_num: 1000
+2021/03/14-07:47:17.557609 7fd7a84aea80 Options.recycle_log_file_num: 0
+2021/03/14-07:47:17.557610 7fd7a84aea80 Options.allow_fallocate: 1
+2021/03/14-07:47:17.557610 7fd7a84aea80 Options.allow_mmap_reads: 0
+2021/03/14-07:47:17.557611 7fd7a84aea80 Options.allow_mmap_writes: 0
+2021/03/14-07:47:17.557611 7fd7a84aea80 Options.use_direct_reads: 0
+2021/03/14-07:47:17.557612 7fd7a84aea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:47:17.557612 7fd7a84aea80 Options.create_missing_column_families: 0
+2021/03/14-07:47:17.557613 7fd7a84aea80 Options.db_log_dir:
+2021/03/14-07:47:17.557614 7fd7a84aea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:47:17.557614 7fd7a84aea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:47:17.557615 7fd7a84aea80 Options.max_subcompactions: 1
+2021/03/14-07:47:17.557615 7fd7a84aea80 Options.max_background_flushes: -1
+2021/03/14-07:47:17.557616 7fd7a84aea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:47:17.557617 7fd7a84aea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:47:17.557617 7fd7a84aea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:47:17.557618 7fd7a84aea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:47:17.557618 7fd7a84aea80 Options.advise_random_on_open: 1
+2021/03/14-07:47:17.557619 7fd7a84aea80 Options.db_write_buffer_size: 0
+2021/03/14-07:47:17.557619 7fd7a84aea80 Options.write_buffer_manager: 0x1a04e90
+2021/03/14-07:47:17.557620 7fd7a84aea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:47:17.557621 7fd7a84aea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:47:17.557621 7fd7a84aea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:47:17.557622 7fd7a84aea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:47:17.557622 7fd7a84aea80 Options.rate_limiter: (nil)
+2021/03/14-07:47:17.557624 7fd7a84aea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:47:17.557631 7fd7a84aea80 Options.wal_recovery_mode: 2
+2021/03/14-07:47:17.557632 7fd7a84aea80 Options.enable_thread_tracking: 0
+2021/03/14-07:47:17.557633 7fd7a84aea80 Options.enable_pipelined_write: 0
+2021/03/14-07:47:17.557633 7fd7a84aea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:47:17.557634 7fd7a84aea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:47:17.557634 7fd7a84aea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:47:17.557635 7fd7a84aea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:47:17.557636 7fd7a84aea80 Options.row_cache: None
+2021/03/14-07:47:17.557636 7fd7a84aea80 Options.wal_filter: None
+2021/03/14-07:47:17.557637 7fd7a84aea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:47:17.557637 7fd7a84aea80 Options.allow_ingest_behind: 0
+2021/03/14-07:47:17.557638 7fd7a84aea80 Options.preserve_deletes: 0
+2021/03/14-07:47:17.557638 7fd7a84aea80 Options.two_write_queues: 0
+2021/03/14-07:47:17.557639 7fd7a84aea80 Options.manual_wal_flush: 0
+2021/03/14-07:47:17.557640 7fd7a84aea80 Options.max_background_jobs: 16
+2021/03/14-07:47:17.557641 7fd7a84aea80 Options.max_background_compactions: -1
+2021/03/14-07:47:17.557641 7fd7a84aea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:47:17.557642 7fd7a84aea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:47:17.557642 7fd7a84aea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:47:17.557643 7fd7a84aea80 Options.max_total_wal_size: 0
+2021/03/14-07:47:17.557644 7fd7a84aea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:47:17.557644 7fd7a84aea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:47:17.557645 7fd7a84aea80 Options.max_open_files: -1
+2021/03/14-07:47:17.557646 7fd7a84aea80 Options.bytes_per_sync: 0
+2021/03/14-07:47:17.557646 7fd7a84aea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:47:17.557647 7fd7a84aea80 Options.compaction_readahead_size: 0
+2021/03/14-07:47:17.557647 7fd7a84aea80 Compression algorithms supported:
+2021/03/14-07:47:17.557648 7fd7a84aea80 Snappy supported: 1
+2021/03/14-07:47:17.557649 7fd7a84aea80 Zlib supported: 1
+2021/03/14-07:47:17.557649 7fd7a84aea80 Bzip supported: 1
+2021/03/14-07:47:17.557650 7fd7a84aea80 LZ4 supported: 1
+2021/03/14-07:47:17.557650 7fd7a84aea80 ZSTDNotFinal supported: 1
+2021/03/14-07:47:17.557655 7fd7a84aea80 ZSTD supported: 1
+2021/03/14-07:47:17.557658 7fd7a84aea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:47:17.557659 7fd7a84aea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:47:17.557780 7fd7a84aea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:47:17.557839 7fd7a84aea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:47:17.557840 7fd7a84aea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:47:17.557841 7fd7a84aea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:47:17.557842 7fd7a84aea80 Options.compaction_filter: None
+2021/03/14-07:47:17.557843 7fd7a84aea80 Options.compaction_filter_factory: None
+2021/03/14-07:47:17.557843 7fd7a84aea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:47:17.557844 7fd7a84aea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:47:17.557860 7fd7a84aea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1a14820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x19f9f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:47:17.557861 7fd7a84aea80 Options.write_buffer_size: 134217728
+2021/03/14-07:47:17.557861 7fd7a84aea80 Options.max_write_buffer_number: 6
+2021/03/14-07:47:17.557862 7fd7a84aea80 Options.compression[0]: NoCompression
+2021/03/14-07:47:17.557863 7fd7a84aea80 Options.compression[1]: NoCompression
+2021/03/14-07:47:17.557863 7fd7a84aea80 Options.compression[2]: Snappy
+2021/03/14-07:47:17.557864 7fd7a84aea80 Options.compression[3]: Snappy
+2021/03/14-07:47:17.557865 7fd7a84aea80 Options.compression[4]: Snappy
+2021/03/14-07:47:17.557865 7fd7a84aea80 Options.compression[5]: Snappy
+2021/03/14-07:47:17.557866 7fd7a84aea80 Options.compression[6]: Snappy
+2021/03/14-07:47:17.557867 7fd7a84aea80 Options.bottommost_compression: Disabled
+2021/03/14-07:47:17.557867 7fd7a84aea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:47:17.557868 7fd7a84aea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:47:17.557869 7fd7a84aea80 Options.num_levels: 7
+2021/03/14-07:47:17.557869 7fd7a84aea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:47:17.557870 7fd7a84aea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:47:17.557870 7fd7a84aea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:47:17.557871 7fd7a84aea80 Options.compression_opts.level: -1
+2021/03/14-07:47:17.557872 7fd7a84aea80 Options.compression_opts.strategy: 0
+2021/03/14-07:47:17.557872 7fd7a84aea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:47:17.557873 7fd7a84aea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:47:17.557873 7fd7a84aea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:47:17.557874 7fd7a84aea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:47:17.557875 7fd7a84aea80 Options.target_file_size_base: 67108864
+2021/03/14-07:47:17.557875 7fd7a84aea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:47:17.557876 7fd7a84aea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:47:17.557876 7fd7a84aea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:47:17.557877 7fd7a84aea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:47:17.557879 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:47:17.557886 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:47:17.557887 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:47:17.557888 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:47:17.557888 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:47:17.557889 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:47:17.557890 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:47:17.557890 7fd7a84aea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:47:17.557891 7fd7a84aea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:47:17.557891 7fd7a84aea80 Options.arena_block_size: 16777216
+2021/03/14-07:47:17.557892 7fd7a84aea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:47:17.557893 7fd7a84aea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:47:17.557893 7fd7a84aea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:47:17.557894 7fd7a84aea80 Options.disable_auto_compactions: 0
+2021/03/14-07:47:17.557896 7fd7a84aea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:47:17.557896 7fd7a84aea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:47:17.557897 7fd7a84aea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:47:17.557898 7fd7a84aea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:47:17.557898 7fd7a84aea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:47:17.557899 7fd7a84aea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:47:17.557899 7fd7a84aea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:47:17.557901 7fd7a84aea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:47:17.557901 7fd7a84aea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:47:17.557902 7fd7a84aea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:47:17.557902 7fd7a84aea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:47:17.557903 7fd7a84aea80 Options.table_properties_collectors:
+2021/03/14-07:47:17.557904 7fd7a84aea80 Options.inplace_update_support: 0
+2021/03/14-07:47:17.557904 7fd7a84aea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:47:17.557905 7fd7a84aea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:47:17.557906 7fd7a84aea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:47:17.557906 7fd7a84aea80 Options.bloom_locality: 0
+2021/03/14-07:47:17.557907 7fd7a84aea80 Options.max_successive_merges: 0
+2021/03/14-07:47:17.557907 7fd7a84aea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:47:17.557908 7fd7a84aea80 Options.paranoid_file_checks: 0
+2021/03/14-07:47:17.557909 7fd7a84aea80 Options.force_consistency_checks: 0
+2021/03/14-07:47:17.557909 7fd7a84aea80 Options.report_bg_io_stats: 0
+2021/03/14-07:47:17.558337 7fd7a84aea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:47:17.558340 7fd7a84aea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:47:17.558518 7fd7a84aea80 EVENT_LOG_v1 {"time_micros": 1615704437558507, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:47:17.558524 7fd7a84aea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:47:18.327819 7fd7a84aea80 EVENT_LOG_v1 {"time_micros": 1615704438327815, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704439081678 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704439081678
new file mode 100644
index 0000000..1613462
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704439081678
@@ -0,0 +1,186 @@
+2021/03/14-07:47:18.341023 7fd7a84aea80 RocksDB version: 5.11.3
+2021/03/14-07:47:18.341077 7fd7a84aea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:47:18.341079 7fd7a84aea80 Compile date Mar 13 2021
+2021/03/14-07:47:18.341081 7fd7a84aea80 DB SUMMARY
+2021/03/14-07:47:18.341243 7fd7a84aea80 CURRENT file: CURRENT
+2021/03/14-07:47:18.341244 7fd7a84aea80 IDENTITY file: IDENTITY
+2021/03/14-07:47:18.341260 7fd7a84aea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:47:18.341261 7fd7a84aea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:47:18.341262 7fd7a84aea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:47:18.341268 7fd7a84aea80 Options.error_if_exists: 0
+2021/03/14-07:47:18.341269 7fd7a84aea80 Options.create_if_missing: 1
+2021/03/14-07:47:18.341269 7fd7a84aea80 Options.paranoid_checks: 1
+2021/03/14-07:47:18.341270 7fd7a84aea80 Options.env: 0x7fd7a8e68080
+2021/03/14-07:47:18.341270 7fd7a84aea80 Options.info_log: 0x1a1cfa0
+2021/03/14-07:47:18.341271 7fd7a84aea80 Options.max_file_opening_threads: 16
+2021/03/14-07:47:18.341272 7fd7a84aea80 Options.statistics: (nil)
+2021/03/14-07:47:18.341272 7fd7a84aea80 Options.use_fsync: 0
+2021/03/14-07:47:18.341273 7fd7a84aea80 Options.max_log_file_size: 0
+2021/03/14-07:47:18.341273 7fd7a84aea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:47:18.341274 7fd7a84aea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:47:18.341274 7fd7a84aea80 Options.keep_log_file_num: 1000
+2021/03/14-07:47:18.341275 7fd7a84aea80 Options.recycle_log_file_num: 0
+2021/03/14-07:47:18.341276 7fd7a84aea80 Options.allow_fallocate: 1
+2021/03/14-07:47:18.341276 7fd7a84aea80 Options.allow_mmap_reads: 0
+2021/03/14-07:47:18.341277 7fd7a84aea80 Options.allow_mmap_writes: 0
+2021/03/14-07:47:18.341277 7fd7a84aea80 Options.use_direct_reads: 0
+2021/03/14-07:47:18.341278 7fd7a84aea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:47:18.341278 7fd7a84aea80 Options.create_missing_column_families: 0
+2021/03/14-07:47:18.341279 7fd7a84aea80 Options.db_log_dir:
+2021/03/14-07:47:18.341280 7fd7a84aea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:47:18.341280 7fd7a84aea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:47:18.341281 7fd7a84aea80 Options.max_subcompactions: 1
+2021/03/14-07:47:18.341281 7fd7a84aea80 Options.max_background_flushes: -1
+2021/03/14-07:47:18.341282 7fd7a84aea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:47:18.341282 7fd7a84aea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:47:18.341283 7fd7a84aea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:47:18.341284 7fd7a84aea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:47:18.341284 7fd7a84aea80 Options.advise_random_on_open: 1
+2021/03/14-07:47:18.341285 7fd7a84aea80 Options.db_write_buffer_size: 0
+2021/03/14-07:47:18.341285 7fd7a84aea80 Options.write_buffer_manager: 0x1a04e90
+2021/03/14-07:47:18.341286 7fd7a84aea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:47:18.341286 7fd7a84aea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:47:18.341287 7fd7a84aea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:47:18.341287 7fd7a84aea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:47:18.341288 7fd7a84aea80 Options.rate_limiter: (nil)
+2021/03/14-07:47:18.341289 7fd7a84aea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:47:18.341298 7fd7a84aea80 Options.wal_recovery_mode: 2
+2021/03/14-07:47:18.341298 7fd7a84aea80 Options.enable_thread_tracking: 0
+2021/03/14-07:47:18.341299 7fd7a84aea80 Options.enable_pipelined_write: 0
+2021/03/14-07:47:18.341299 7fd7a84aea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:47:18.341300 7fd7a84aea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:47:18.341301 7fd7a84aea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:47:18.341301 7fd7a84aea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:47:18.341302 7fd7a84aea80 Options.row_cache: None
+2021/03/14-07:47:18.341302 7fd7a84aea80 Options.wal_filter: None
+2021/03/14-07:47:18.341303 7fd7a84aea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:47:18.341303 7fd7a84aea80 Options.allow_ingest_behind: 0
+2021/03/14-07:47:18.341304 7fd7a84aea80 Options.preserve_deletes: 0
+2021/03/14-07:47:18.341305 7fd7a84aea80 Options.two_write_queues: 0
+2021/03/14-07:47:18.341305 7fd7a84aea80 Options.manual_wal_flush: 0
+2021/03/14-07:47:18.341306 7fd7a84aea80 Options.max_background_jobs: 16
+2021/03/14-07:47:18.341307 7fd7a84aea80 Options.max_background_compactions: -1
+2021/03/14-07:47:18.341307 7fd7a84aea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:47:18.341308 7fd7a84aea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:47:18.341308 7fd7a84aea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:47:18.341309 7fd7a84aea80 Options.max_total_wal_size: 0
+2021/03/14-07:47:18.341310 7fd7a84aea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:47:18.341310 7fd7a84aea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:47:18.341311 7fd7a84aea80 Options.max_open_files: -1
+2021/03/14-07:47:18.341311 7fd7a84aea80 Options.bytes_per_sync: 0
+2021/03/14-07:47:18.341312 7fd7a84aea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:47:18.341312 7fd7a84aea80 Options.compaction_readahead_size: 0
+2021/03/14-07:47:18.341313 7fd7a84aea80 Compression algorithms supported:
+2021/03/14-07:47:18.341314 7fd7a84aea80 Snappy supported: 1
+2021/03/14-07:47:18.341314 7fd7a84aea80 Zlib supported: 1
+2021/03/14-07:47:18.341315 7fd7a84aea80 Bzip supported: 1
+2021/03/14-07:47:18.341315 7fd7a84aea80 LZ4 supported: 1
+2021/03/14-07:47:18.341316 7fd7a84aea80 ZSTDNotFinal supported: 1
+2021/03/14-07:47:18.341320 7fd7a84aea80 ZSTD supported: 1
+2021/03/14-07:47:18.341323 7fd7a84aea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:47:18.341324 7fd7a84aea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:47:18.341415 7fd7a84aea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:47:18.341469 7fd7a84aea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:47:18.341470 7fd7a84aea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:47:18.341471 7fd7a84aea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:47:18.341472 7fd7a84aea80 Options.compaction_filter: None
+2021/03/14-07:47:18.341472 7fd7a84aea80 Options.compaction_filter_factory: None
+2021/03/14-07:47:18.341473 7fd7a84aea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:47:18.341474 7fd7a84aea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:47:18.341489 7fd7a84aea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1a14820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x19f9f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:47:18.341490 7fd7a84aea80 Options.write_buffer_size: 134217728
+2021/03/14-07:47:18.341490 7fd7a84aea80 Options.max_write_buffer_number: 6
+2021/03/14-07:47:18.341491 7fd7a84aea80 Options.compression[0]: NoCompression
+2021/03/14-07:47:18.341492 7fd7a84aea80 Options.compression[1]: NoCompression
+2021/03/14-07:47:18.341492 7fd7a84aea80 Options.compression[2]: Snappy
+2021/03/14-07:47:18.341493 7fd7a84aea80 Options.compression[3]: Snappy
+2021/03/14-07:47:18.341493 7fd7a84aea80 Options.compression[4]: Snappy
+2021/03/14-07:47:18.341494 7fd7a84aea80 Options.compression[5]: Snappy
+2021/03/14-07:47:18.341494 7fd7a84aea80 Options.compression[6]: Snappy
+2021/03/14-07:47:18.341495 7fd7a84aea80 Options.bottommost_compression: Disabled
+2021/03/14-07:47:18.341496 7fd7a84aea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:47:18.341497 7fd7a84aea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:47:18.341497 7fd7a84aea80 Options.num_levels: 7
+2021/03/14-07:47:18.341498 7fd7a84aea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:47:18.341498 7fd7a84aea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:47:18.341499 7fd7a84aea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:47:18.341499 7fd7a84aea80 Options.compression_opts.level: -1
+2021/03/14-07:47:18.341500 7fd7a84aea80 Options.compression_opts.strategy: 0
+2021/03/14-07:47:18.341501 7fd7a84aea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:47:18.341501 7fd7a84aea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:47:18.341502 7fd7a84aea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:47:18.341502 7fd7a84aea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:47:18.341503 7fd7a84aea80 Options.target_file_size_base: 67108864
+2021/03/14-07:47:18.341503 7fd7a84aea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:47:18.341504 7fd7a84aea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:47:18.341505 7fd7a84aea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:47:18.341505 7fd7a84aea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:47:18.341507 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:47:18.341514 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:47:18.341514 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:47:18.341515 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:47:18.341515 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:47:18.341516 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:47:18.341517 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:47:18.341530 7fd7a84aea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:47:18.341531 7fd7a84aea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:47:18.341531 7fd7a84aea80 Options.arena_block_size: 16777216
+2021/03/14-07:47:18.341532 7fd7a84aea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:47:18.341533 7fd7a84aea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:47:18.341533 7fd7a84aea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:47:18.341534 7fd7a84aea80 Options.disable_auto_compactions: 0
+2021/03/14-07:47:18.341536 7fd7a84aea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:47:18.341536 7fd7a84aea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:47:18.341537 7fd7a84aea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:47:18.341538 7fd7a84aea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:47:18.341538 7fd7a84aea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:47:18.341539 7fd7a84aea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:47:18.341539 7fd7a84aea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:47:18.341541 7fd7a84aea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:47:18.341541 7fd7a84aea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:47:18.341542 7fd7a84aea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:47:18.341542 7fd7a84aea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:47:18.341543 7fd7a84aea80 Options.table_properties_collectors:
+2021/03/14-07:47:18.341544 7fd7a84aea80 Options.inplace_update_support: 0
+2021/03/14-07:47:18.341544 7fd7a84aea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:47:18.341545 7fd7a84aea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:47:18.341546 7fd7a84aea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:47:18.341546 7fd7a84aea80 Options.bloom_locality: 0
+2021/03/14-07:47:18.341547 7fd7a84aea80 Options.max_successive_merges: 0
+2021/03/14-07:47:18.341547 7fd7a84aea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:47:18.341548 7fd7a84aea80 Options.paranoid_file_checks: 0
+2021/03/14-07:47:18.341548 7fd7a84aea80 Options.force_consistency_checks: 0
+2021/03/14-07:47:18.341549 7fd7a84aea80 Options.report_bg_io_stats: 0
+2021/03/14-07:47:18.341924 7fd7a84aea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:47:18.341926 7fd7a84aea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:47:18.342093 7fd7a84aea80 EVENT_LOG_v1 {"time_micros": 1615704438342082, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:47:18.342098 7fd7a84aea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:47:19.069028 7fd7a84aea80 EVENT_LOG_v1 {"time_micros": 1615704439069024, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704439831530 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704439831530
new file mode 100644
index 0000000..13ac89d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704439831530
@@ -0,0 +1,186 @@
+2021/03/14-07:47:19.082084 7fd7a84aea80 RocksDB version: 5.11.3
+2021/03/14-07:47:19.082140 7fd7a84aea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:47:19.082142 7fd7a84aea80 Compile date Mar 13 2021
+2021/03/14-07:47:19.082144 7fd7a84aea80 DB SUMMARY
+2021/03/14-07:47:19.082309 7fd7a84aea80 CURRENT file: CURRENT
+2021/03/14-07:47:19.082310 7fd7a84aea80 IDENTITY file: IDENTITY
+2021/03/14-07:47:19.082326 7fd7a84aea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:47:19.082327 7fd7a84aea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:47:19.082328 7fd7a84aea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:47:19.082333 7fd7a84aea80 Options.error_if_exists: 0
+2021/03/14-07:47:19.082334 7fd7a84aea80 Options.create_if_missing: 1
+2021/03/14-07:47:19.082334 7fd7a84aea80 Options.paranoid_checks: 1
+2021/03/14-07:47:19.082335 7fd7a84aea80 Options.env: 0x7fd7a8e68080
+2021/03/14-07:47:19.082336 7fd7a84aea80 Options.info_log: 0x1a1cfa0
+2021/03/14-07:47:19.082336 7fd7a84aea80 Options.max_file_opening_threads: 16
+2021/03/14-07:47:19.082337 7fd7a84aea80 Options.statistics: (nil)
+2021/03/14-07:47:19.082338 7fd7a84aea80 Options.use_fsync: 0
+2021/03/14-07:47:19.082338 7fd7a84aea80 Options.max_log_file_size: 0
+2021/03/14-07:47:19.082339 7fd7a84aea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:47:19.082339 7fd7a84aea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:47:19.082340 7fd7a84aea80 Options.keep_log_file_num: 1000
+2021/03/14-07:47:19.082341 7fd7a84aea80 Options.recycle_log_file_num: 0
+2021/03/14-07:47:19.082341 7fd7a84aea80 Options.allow_fallocate: 1
+2021/03/14-07:47:19.082342 7fd7a84aea80 Options.allow_mmap_reads: 0
+2021/03/14-07:47:19.082342 7fd7a84aea80 Options.allow_mmap_writes: 0
+2021/03/14-07:47:19.082343 7fd7a84aea80 Options.use_direct_reads: 0
+2021/03/14-07:47:19.082343 7fd7a84aea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:47:19.082344 7fd7a84aea80 Options.create_missing_column_families: 0
+2021/03/14-07:47:19.082345 7fd7a84aea80 Options.db_log_dir:
+2021/03/14-07:47:19.082345 7fd7a84aea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:47:19.082346 7fd7a84aea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:47:19.082346 7fd7a84aea80 Options.max_subcompactions: 1
+2021/03/14-07:47:19.082347 7fd7a84aea80 Options.max_background_flushes: -1
+2021/03/14-07:47:19.082347 7fd7a84aea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:47:19.082348 7fd7a84aea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:47:19.082349 7fd7a84aea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:47:19.082349 7fd7a84aea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:47:19.082350 7fd7a84aea80 Options.advise_random_on_open: 1
+2021/03/14-07:47:19.082350 7fd7a84aea80 Options.db_write_buffer_size: 0
+2021/03/14-07:47:19.082351 7fd7a84aea80 Options.write_buffer_manager: 0x1a04e90
+2021/03/14-07:47:19.082351 7fd7a84aea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:47:19.082352 7fd7a84aea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:47:19.082353 7fd7a84aea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:47:19.082353 7fd7a84aea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:47:19.082354 7fd7a84aea80 Options.rate_limiter: (nil)
+2021/03/14-07:47:19.082355 7fd7a84aea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:47:19.082363 7fd7a84aea80 Options.wal_recovery_mode: 2
+2021/03/14-07:47:19.082363 7fd7a84aea80 Options.enable_thread_tracking: 0
+2021/03/14-07:47:19.082364 7fd7a84aea80 Options.enable_pipelined_write: 0
+2021/03/14-07:47:19.082364 7fd7a84aea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:47:19.082365 7fd7a84aea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:47:19.082366 7fd7a84aea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:47:19.082366 7fd7a84aea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:47:19.082367 7fd7a84aea80 Options.row_cache: None
+2021/03/14-07:47:19.082367 7fd7a84aea80 Options.wal_filter: None
+2021/03/14-07:47:19.082368 7fd7a84aea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:47:19.082368 7fd7a84aea80 Options.allow_ingest_behind: 0
+2021/03/14-07:47:19.082369 7fd7a84aea80 Options.preserve_deletes: 0
+2021/03/14-07:47:19.082370 7fd7a84aea80 Options.two_write_queues: 0
+2021/03/14-07:47:19.082370 7fd7a84aea80 Options.manual_wal_flush: 0
+2021/03/14-07:47:19.082371 7fd7a84aea80 Options.max_background_jobs: 16
+2021/03/14-07:47:19.082372 7fd7a84aea80 Options.max_background_compactions: -1
+2021/03/14-07:47:19.082372 7fd7a84aea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:47:19.082373 7fd7a84aea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:47:19.082373 7fd7a84aea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:47:19.082374 7fd7a84aea80 Options.max_total_wal_size: 0
+2021/03/14-07:47:19.082375 7fd7a84aea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:47:19.082375 7fd7a84aea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:47:19.082376 7fd7a84aea80 Options.max_open_files: -1
+2021/03/14-07:47:19.082376 7fd7a84aea80 Options.bytes_per_sync: 0
+2021/03/14-07:47:19.082377 7fd7a84aea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:47:19.082378 7fd7a84aea80 Options.compaction_readahead_size: 0
+2021/03/14-07:47:19.082378 7fd7a84aea80 Compression algorithms supported:
+2021/03/14-07:47:19.082379 7fd7a84aea80 Snappy supported: 1
+2021/03/14-07:47:19.082379 7fd7a84aea80 Zlib supported: 1
+2021/03/14-07:47:19.082380 7fd7a84aea80 Bzip supported: 1
+2021/03/14-07:47:19.082380 7fd7a84aea80 LZ4 supported: 1
+2021/03/14-07:47:19.082381 7fd7a84aea80 ZSTDNotFinal supported: 1
+2021/03/14-07:47:19.082385 7fd7a84aea80 ZSTD supported: 1
+2021/03/14-07:47:19.082388 7fd7a84aea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:47:19.082389 7fd7a84aea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:47:19.082482 7fd7a84aea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:47:19.082535 7fd7a84aea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:47:19.082537 7fd7a84aea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:47:19.082538 7fd7a84aea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:47:19.082538 7fd7a84aea80 Options.compaction_filter: None
+2021/03/14-07:47:19.082539 7fd7a84aea80 Options.compaction_filter_factory: None
+2021/03/14-07:47:19.082539 7fd7a84aea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:47:19.082540 7fd7a84aea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:47:19.082555 7fd7a84aea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1a14820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x19f9f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:47:19.082556 7fd7a84aea80 Options.write_buffer_size: 134217728
+2021/03/14-07:47:19.082556 7fd7a84aea80 Options.max_write_buffer_number: 6
+2021/03/14-07:47:19.082557 7fd7a84aea80 Options.compression[0]: NoCompression
+2021/03/14-07:47:19.082558 7fd7a84aea80 Options.compression[1]: NoCompression
+2021/03/14-07:47:19.082558 7fd7a84aea80 Options.compression[2]: Snappy
+2021/03/14-07:47:19.082559 7fd7a84aea80 Options.compression[3]: Snappy
+2021/03/14-07:47:19.082560 7fd7a84aea80 Options.compression[4]: Snappy
+2021/03/14-07:47:19.082560 7fd7a84aea80 Options.compression[5]: Snappy
+2021/03/14-07:47:19.082561 7fd7a84aea80 Options.compression[6]: Snappy
+2021/03/14-07:47:19.082561 7fd7a84aea80 Options.bottommost_compression: Disabled
+2021/03/14-07:47:19.082562 7fd7a84aea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:47:19.082563 7fd7a84aea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:47:19.082563 7fd7a84aea80 Options.num_levels: 7
+2021/03/14-07:47:19.082564 7fd7a84aea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:47:19.082565 7fd7a84aea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:47:19.082565 7fd7a84aea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:47:19.082566 7fd7a84aea80 Options.compression_opts.level: -1
+2021/03/14-07:47:19.082566 7fd7a84aea80 Options.compression_opts.strategy: 0
+2021/03/14-07:47:19.082567 7fd7a84aea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:47:19.082567 7fd7a84aea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:47:19.082568 7fd7a84aea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:47:19.082569 7fd7a84aea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:47:19.082569 7fd7a84aea80 Options.target_file_size_base: 67108864
+2021/03/14-07:47:19.082570 7fd7a84aea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:47:19.082570 7fd7a84aea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:47:19.082571 7fd7a84aea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:47:19.082571 7fd7a84aea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:47:19.082573 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:47:19.082580 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:47:19.082581 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:47:19.082581 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:47:19.082582 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:47:19.082582 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:47:19.082583 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:47:19.082583 7fd7a84aea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:47:19.082584 7fd7a84aea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:47:19.082585 7fd7a84aea80 Options.arena_block_size: 16777216
+2021/03/14-07:47:19.082585 7fd7a84aea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:47:19.082586 7fd7a84aea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:47:19.082587 7fd7a84aea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:47:19.082587 7fd7a84aea80 Options.disable_auto_compactions: 0
+2021/03/14-07:47:19.082589 7fd7a84aea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:47:19.082589 7fd7a84aea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:47:19.082590 7fd7a84aea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:47:19.082591 7fd7a84aea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:47:19.082591 7fd7a84aea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:47:19.082592 7fd7a84aea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:47:19.082592 7fd7a84aea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:47:19.082594 7fd7a84aea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:47:19.082594 7fd7a84aea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:47:19.082595 7fd7a84aea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:47:19.082595 7fd7a84aea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:47:19.082596 7fd7a84aea80 Options.table_properties_collectors:
+2021/03/14-07:47:19.082597 7fd7a84aea80 Options.inplace_update_support: 0
+2021/03/14-07:47:19.082597 7fd7a84aea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:47:19.082598 7fd7a84aea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:47:19.082599 7fd7a84aea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:47:19.082599 7fd7a84aea80 Options.bloom_locality: 0
+2021/03/14-07:47:19.082600 7fd7a84aea80 Options.max_successive_merges: 0
+2021/03/14-07:47:19.082601 7fd7a84aea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:47:19.082601 7fd7a84aea80 Options.paranoid_file_checks: 0
+2021/03/14-07:47:19.082602 7fd7a84aea80 Options.force_consistency_checks: 0
+2021/03/14-07:47:19.082602 7fd7a84aea80 Options.report_bg_io_stats: 0
+2021/03/14-07:47:19.082977 7fd7a84aea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:47:19.082980 7fd7a84aea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:47:19.083139 7fd7a84aea80 EVENT_LOG_v1 {"time_micros": 1615704439083129, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:47:19.083144 7fd7a84aea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:47:19.818491 7fd7a84aea80 EVENT_LOG_v1 {"time_micros": 1615704439818488, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704565800696 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704565800696
new file mode 100644
index 0000000..7a6a019
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704565800696
@@ -0,0 +1,186 @@
+2021/03/14-07:47:19.831953 7fd7a84aea80 RocksDB version: 5.11.3
+2021/03/14-07:47:19.832011 7fd7a84aea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:47:19.832012 7fd7a84aea80 Compile date Mar 13 2021
+2021/03/14-07:47:19.832015 7fd7a84aea80 DB SUMMARY
+2021/03/14-07:47:19.832174 7fd7a84aea80 CURRENT file: CURRENT
+2021/03/14-07:47:19.832175 7fd7a84aea80 IDENTITY file: IDENTITY
+2021/03/14-07:47:19.832191 7fd7a84aea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:47:19.832192 7fd7a84aea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:47:19.832193 7fd7a84aea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:47:19.832199 7fd7a84aea80 Options.error_if_exists: 0
+2021/03/14-07:47:19.832200 7fd7a84aea80 Options.create_if_missing: 1
+2021/03/14-07:47:19.832200 7fd7a84aea80 Options.paranoid_checks: 1
+2021/03/14-07:47:19.832201 7fd7a84aea80 Options.env: 0x7fd7a8e68080
+2021/03/14-07:47:19.832201 7fd7a84aea80 Options.info_log: 0x1a1cfa0
+2021/03/14-07:47:19.832202 7fd7a84aea80 Options.max_file_opening_threads: 16
+2021/03/14-07:47:19.832203 7fd7a84aea80 Options.statistics: (nil)
+2021/03/14-07:47:19.832203 7fd7a84aea80 Options.use_fsync: 0
+2021/03/14-07:47:19.832204 7fd7a84aea80 Options.max_log_file_size: 0
+2021/03/14-07:47:19.832204 7fd7a84aea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:47:19.832205 7fd7a84aea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:47:19.832206 7fd7a84aea80 Options.keep_log_file_num: 1000
+2021/03/14-07:47:19.832206 7fd7a84aea80 Options.recycle_log_file_num: 0
+2021/03/14-07:47:19.832207 7fd7a84aea80 Options.allow_fallocate: 1
+2021/03/14-07:47:19.832207 7fd7a84aea80 Options.allow_mmap_reads: 0
+2021/03/14-07:47:19.832208 7fd7a84aea80 Options.allow_mmap_writes: 0
+2021/03/14-07:47:19.832208 7fd7a84aea80 Options.use_direct_reads: 0
+2021/03/14-07:47:19.832209 7fd7a84aea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:47:19.832209 7fd7a84aea80 Options.create_missing_column_families: 0
+2021/03/14-07:47:19.832210 7fd7a84aea80 Options.db_log_dir:
+2021/03/14-07:47:19.832211 7fd7a84aea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:47:19.832211 7fd7a84aea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:47:19.832212 7fd7a84aea80 Options.max_subcompactions: 1
+2021/03/14-07:47:19.832212 7fd7a84aea80 Options.max_background_flushes: -1
+2021/03/14-07:47:19.832213 7fd7a84aea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:47:19.832213 7fd7a84aea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:47:19.832214 7fd7a84aea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:47:19.832215 7fd7a84aea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:47:19.832215 7fd7a84aea80 Options.advise_random_on_open: 1
+2021/03/14-07:47:19.832216 7fd7a84aea80 Options.db_write_buffer_size: 0
+2021/03/14-07:47:19.832216 7fd7a84aea80 Options.write_buffer_manager: 0x1a04e90
+2021/03/14-07:47:19.832217 7fd7a84aea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:47:19.832217 7fd7a84aea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:47:19.832218 7fd7a84aea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:47:19.832218 7fd7a84aea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:47:19.832219 7fd7a84aea80 Options.rate_limiter: (nil)
+2021/03/14-07:47:19.832220 7fd7a84aea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:47:19.832227 7fd7a84aea80 Options.wal_recovery_mode: 2
+2021/03/14-07:47:19.832228 7fd7a84aea80 Options.enable_thread_tracking: 0
+2021/03/14-07:47:19.832229 7fd7a84aea80 Options.enable_pipelined_write: 0
+2021/03/14-07:47:19.832229 7fd7a84aea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:47:19.832230 7fd7a84aea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:47:19.832230 7fd7a84aea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:47:19.832231 7fd7a84aea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:47:19.832232 7fd7a84aea80 Options.row_cache: None
+2021/03/14-07:47:19.832232 7fd7a84aea80 Options.wal_filter: None
+2021/03/14-07:47:19.832233 7fd7a84aea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:47:19.832233 7fd7a84aea80 Options.allow_ingest_behind: 0
+2021/03/14-07:47:19.832234 7fd7a84aea80 Options.preserve_deletes: 0
+2021/03/14-07:47:19.832234 7fd7a84aea80 Options.two_write_queues: 0
+2021/03/14-07:47:19.832235 7fd7a84aea80 Options.manual_wal_flush: 0
+2021/03/14-07:47:19.832236 7fd7a84aea80 Options.max_background_jobs: 16
+2021/03/14-07:47:19.832237 7fd7a84aea80 Options.max_background_compactions: -1
+2021/03/14-07:47:19.832242 7fd7a84aea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:47:19.832243 7fd7a84aea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:47:19.832244 7fd7a84aea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:47:19.832245 7fd7a84aea80 Options.max_total_wal_size: 0
+2021/03/14-07:47:19.832246 7fd7a84aea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:47:19.832247 7fd7a84aea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:47:19.832248 7fd7a84aea80 Options.max_open_files: -1
+2021/03/14-07:47:19.832248 7fd7a84aea80 Options.bytes_per_sync: 0
+2021/03/14-07:47:19.832249 7fd7a84aea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:47:19.832249 7fd7a84aea80 Options.compaction_readahead_size: 0
+2021/03/14-07:47:19.832250 7fd7a84aea80 Compression algorithms supported:
+2021/03/14-07:47:19.832251 7fd7a84aea80 Snappy supported: 1
+2021/03/14-07:47:19.832251 7fd7a84aea80 Zlib supported: 1
+2021/03/14-07:47:19.832252 7fd7a84aea80 Bzip supported: 1
+2021/03/14-07:47:19.832252 7fd7a84aea80 LZ4 supported: 1
+2021/03/14-07:47:19.832253 7fd7a84aea80 ZSTDNotFinal supported: 1
+2021/03/14-07:47:19.832257 7fd7a84aea80 ZSTD supported: 1
+2021/03/14-07:47:19.832261 7fd7a84aea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:47:19.832262 7fd7a84aea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:47:19.832359 7fd7a84aea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:47:19.832413 7fd7a84aea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:47:19.832415 7fd7a84aea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:47:19.832416 7fd7a84aea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:47:19.832417 7fd7a84aea80 Options.compaction_filter: None
+2021/03/14-07:47:19.832417 7fd7a84aea80 Options.compaction_filter_factory: None
+2021/03/14-07:47:19.832418 7fd7a84aea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:47:19.832419 7fd7a84aea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:47:19.832434 7fd7a84aea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1a14820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x19f9f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:47:19.832434 7fd7a84aea80 Options.write_buffer_size: 134217728
+2021/03/14-07:47:19.832435 7fd7a84aea80 Options.max_write_buffer_number: 6
+2021/03/14-07:47:19.832436 7fd7a84aea80 Options.compression[0]: NoCompression
+2021/03/14-07:47:19.832436 7fd7a84aea80 Options.compression[1]: NoCompression
+2021/03/14-07:47:19.832437 7fd7a84aea80 Options.compression[2]: Snappy
+2021/03/14-07:47:19.832438 7fd7a84aea80 Options.compression[3]: Snappy
+2021/03/14-07:47:19.832438 7fd7a84aea80 Options.compression[4]: Snappy
+2021/03/14-07:47:19.832439 7fd7a84aea80 Options.compression[5]: Snappy
+2021/03/14-07:47:19.832439 7fd7a84aea80 Options.compression[6]: Snappy
+2021/03/14-07:47:19.832440 7fd7a84aea80 Options.bottommost_compression: Disabled
+2021/03/14-07:47:19.832441 7fd7a84aea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:47:19.832442 7fd7a84aea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:47:19.832442 7fd7a84aea80 Options.num_levels: 7
+2021/03/14-07:47:19.832443 7fd7a84aea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:47:19.832443 7fd7a84aea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:47:19.832444 7fd7a84aea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:47:19.832444 7fd7a84aea80 Options.compression_opts.level: -1
+2021/03/14-07:47:19.832445 7fd7a84aea80 Options.compression_opts.strategy: 0
+2021/03/14-07:47:19.832446 7fd7a84aea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:47:19.832446 7fd7a84aea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:47:19.832447 7fd7a84aea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:47:19.832447 7fd7a84aea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:47:19.832448 7fd7a84aea80 Options.target_file_size_base: 67108864
+2021/03/14-07:47:19.832449 7fd7a84aea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:47:19.832449 7fd7a84aea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:47:19.832450 7fd7a84aea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:47:19.832450 7fd7a84aea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:47:19.832452 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:47:19.832459 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:47:19.832460 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:47:19.832460 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:47:19.832461 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:47:19.832462 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:47:19.832462 7fd7a84aea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:47:19.832463 7fd7a84aea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:47:19.832463 7fd7a84aea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:47:19.832464 7fd7a84aea80 Options.arena_block_size: 16777216
+2021/03/14-07:47:19.832464 7fd7a84aea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:47:19.832465 7fd7a84aea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:47:19.832466 7fd7a84aea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:47:19.832466 7fd7a84aea80 Options.disable_auto_compactions: 0
+2021/03/14-07:47:19.832468 7fd7a84aea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:47:19.832468 7fd7a84aea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:47:19.832469 7fd7a84aea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:47:19.832470 7fd7a84aea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:47:19.832470 7fd7a84aea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:47:19.832471 7fd7a84aea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:47:19.832471 7fd7a84aea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:47:19.832472 7fd7a84aea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:47:19.832473 7fd7a84aea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:47:19.832473 7fd7a84aea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:47:19.832474 7fd7a84aea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:47:19.832475 7fd7a84aea80 Options.table_properties_collectors:
+2021/03/14-07:47:19.832475 7fd7a84aea80 Options.inplace_update_support: 0
+2021/03/14-07:47:19.832476 7fd7a84aea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:47:19.832476 7fd7a84aea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:47:19.832477 7fd7a84aea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:47:19.832478 7fd7a84aea80 Options.bloom_locality: 0
+2021/03/14-07:47:19.832478 7fd7a84aea80 Options.max_successive_merges: 0
+2021/03/14-07:47:19.832479 7fd7a84aea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:47:19.832479 7fd7a84aea80 Options.paranoid_file_checks: 0
+2021/03/14-07:47:19.832480 7fd7a84aea80 Options.force_consistency_checks: 0
+2021/03/14-07:47:19.832480 7fd7a84aea80 Options.report_bg_io_stats: 0
+2021/03/14-07:47:19.832855 7fd7a84aea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:47:19.832857 7fd7a84aea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:47:19.833019 7fd7a84aea80 EVENT_LOG_v1 {"time_micros": 1615704439833009, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:47:19.833025 7fd7a84aea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:47:20.561819 7fd7a84aea80 EVENT_LOG_v1 {"time_micros": 1615704440561816, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704566530693 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704566530693
new file mode 100644
index 0000000..573b0ab
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704566530693
@@ -0,0 +1,186 @@
+2021/03/14-07:49:25.801295 7f3a96887a80 RocksDB version: 5.11.3
+2021/03/14-07:49:25.801366 7f3a96887a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:49:25.801368 7f3a96887a80 Compile date Mar 13 2021
+2021/03/14-07:49:25.801374 7f3a96887a80 DB SUMMARY
+2021/03/14-07:49:25.801553 7f3a96887a80 CURRENT file: CURRENT
+2021/03/14-07:49:25.801554 7f3a96887a80 IDENTITY file: IDENTITY
+2021/03/14-07:49:25.801571 7f3a96887a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:49:25.801572 7f3a96887a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:49:25.801573 7f3a96887a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:49:25.801580 7f3a96887a80 Options.error_if_exists: 0
+2021/03/14-07:49:25.801581 7f3a96887a80 Options.create_if_missing: 1
+2021/03/14-07:49:25.801582 7f3a96887a80 Options.paranoid_checks: 1
+2021/03/14-07:49:25.801582 7f3a96887a80 Options.env: 0x7f3a97241080
+2021/03/14-07:49:25.801583 7f3a96887a80 Options.info_log: 0x14deca0
+2021/03/14-07:49:25.801584 7f3a96887a80 Options.max_file_opening_threads: 16
+2021/03/14-07:49:25.801584 7f3a96887a80 Options.statistics: (nil)
+2021/03/14-07:49:25.801585 7f3a96887a80 Options.use_fsync: 0
+2021/03/14-07:49:25.801586 7f3a96887a80 Options.max_log_file_size: 0
+2021/03/14-07:49:25.801586 7f3a96887a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:49:25.801587 7f3a96887a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:49:25.801588 7f3a96887a80 Options.keep_log_file_num: 1000
+2021/03/14-07:49:25.801588 7f3a96887a80 Options.recycle_log_file_num: 0
+2021/03/14-07:49:25.801589 7f3a96887a80 Options.allow_fallocate: 1
+2021/03/14-07:49:25.801590 7f3a96887a80 Options.allow_mmap_reads: 0
+2021/03/14-07:49:25.801590 7f3a96887a80 Options.allow_mmap_writes: 0
+2021/03/14-07:49:25.801591 7f3a96887a80 Options.use_direct_reads: 0
+2021/03/14-07:49:25.801591 7f3a96887a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:49:25.801592 7f3a96887a80 Options.create_missing_column_families: 0
+2021/03/14-07:49:25.801592 7f3a96887a80 Options.db_log_dir:
+2021/03/14-07:49:25.801593 7f3a96887a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:49:25.801594 7f3a96887a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:49:25.801594 7f3a96887a80 Options.max_subcompactions: 1
+2021/03/14-07:49:25.801595 7f3a96887a80 Options.max_background_flushes: -1
+2021/03/14-07:49:25.801596 7f3a96887a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:49:25.801596 7f3a96887a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:49:25.801597 7f3a96887a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:49:25.801597 7f3a96887a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:49:25.801598 7f3a96887a80 Options.advise_random_on_open: 1
+2021/03/14-07:49:25.801599 7f3a96887a80 Options.db_write_buffer_size: 0
+2021/03/14-07:49:25.801599 7f3a96887a80 Options.write_buffer_manager: 0x14c6b90
+2021/03/14-07:49:25.801600 7f3a96887a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:49:25.801600 7f3a96887a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:49:25.801601 7f3a96887a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:49:25.801602 7f3a96887a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:49:25.801602 7f3a96887a80 Options.rate_limiter: (nil)
+2021/03/14-07:49:25.801604 7f3a96887a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:49:25.801613 7f3a96887a80 Options.wal_recovery_mode: 2
+2021/03/14-07:49:25.801613 7f3a96887a80 Options.enable_thread_tracking: 0
+2021/03/14-07:49:25.801614 7f3a96887a80 Options.enable_pipelined_write: 0
+2021/03/14-07:49:25.801615 7f3a96887a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:49:25.801615 7f3a96887a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:49:25.801616 7f3a96887a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:49:25.801616 7f3a96887a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:49:25.801617 7f3a96887a80 Options.row_cache: None
+2021/03/14-07:49:25.801618 7f3a96887a80 Options.wal_filter: None
+2021/03/14-07:49:25.801618 7f3a96887a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:49:25.801619 7f3a96887a80 Options.allow_ingest_behind: 0
+2021/03/14-07:49:25.801619 7f3a96887a80 Options.preserve_deletes: 0
+2021/03/14-07:49:25.801620 7f3a96887a80 Options.two_write_queues: 0
+2021/03/14-07:49:25.801621 7f3a96887a80 Options.manual_wal_flush: 0
+2021/03/14-07:49:25.801622 7f3a96887a80 Options.max_background_jobs: 16
+2021/03/14-07:49:25.801622 7f3a96887a80 Options.max_background_compactions: -1
+2021/03/14-07:49:25.801623 7f3a96887a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:49:25.801624 7f3a96887a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:49:25.801624 7f3a96887a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:49:25.801625 7f3a96887a80 Options.max_total_wal_size: 0
+2021/03/14-07:49:25.801626 7f3a96887a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:49:25.801626 7f3a96887a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:49:25.801627 7f3a96887a80 Options.max_open_files: -1
+2021/03/14-07:49:25.801627 7f3a96887a80 Options.bytes_per_sync: 0
+2021/03/14-07:49:25.801628 7f3a96887a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:49:25.801629 7f3a96887a80 Options.compaction_readahead_size: 0
+2021/03/14-07:49:25.801629 7f3a96887a80 Compression algorithms supported:
+2021/03/14-07:49:25.801630 7f3a96887a80 Snappy supported: 1
+2021/03/14-07:49:25.801631 7f3a96887a80 Zlib supported: 1
+2021/03/14-07:49:25.801631 7f3a96887a80 Bzip supported: 1
+2021/03/14-07:49:25.801632 7f3a96887a80 LZ4 supported: 1
+2021/03/14-07:49:25.801632 7f3a96887a80 ZSTDNotFinal supported: 1
+2021/03/14-07:49:25.801637 7f3a96887a80 ZSTD supported: 1
+2021/03/14-07:49:25.801641 7f3a96887a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:49:25.801642 7f3a96887a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:49:25.801820 7f3a96887a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:49:25.801882 7f3a96887a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:49:25.801884 7f3a96887a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:49:25.801885 7f3a96887a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:49:25.801886 7f3a96887a80 Options.compaction_filter: None
+2021/03/14-07:49:25.801886 7f3a96887a80 Options.compaction_filter_factory: None
+2021/03/14-07:49:25.801887 7f3a96887a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:49:25.801888 7f3a96887a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:49:25.801903 7f3a96887a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x14d6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x14bbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:49:25.801904 7f3a96887a80 Options.write_buffer_size: 134217728
+2021/03/14-07:49:25.801904 7f3a96887a80 Options.max_write_buffer_number: 6
+2021/03/14-07:49:25.801905 7f3a96887a80 Options.compression[0]: NoCompression
+2021/03/14-07:49:25.801906 7f3a96887a80 Options.compression[1]: NoCompression
+2021/03/14-07:49:25.801906 7f3a96887a80 Options.compression[2]: Snappy
+2021/03/14-07:49:25.801907 7f3a96887a80 Options.compression[3]: Snappy
+2021/03/14-07:49:25.801908 7f3a96887a80 Options.compression[4]: Snappy
+2021/03/14-07:49:25.801908 7f3a96887a80 Options.compression[5]: Snappy
+2021/03/14-07:49:25.801909 7f3a96887a80 Options.compression[6]: Snappy
+2021/03/14-07:49:25.801910 7f3a96887a80 Options.bottommost_compression: Disabled
+2021/03/14-07:49:25.801910 7f3a96887a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:49:25.801911 7f3a96887a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:49:25.801912 7f3a96887a80 Options.num_levels: 7
+2021/03/14-07:49:25.801912 7f3a96887a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:49:25.801913 7f3a96887a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:49:25.801914 7f3a96887a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:49:25.801914 7f3a96887a80 Options.compression_opts.level: -1
+2021/03/14-07:49:25.801915 7f3a96887a80 Options.compression_opts.strategy: 0
+2021/03/14-07:49:25.801915 7f3a96887a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:49:25.801916 7f3a96887a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:49:25.801917 7f3a96887a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:49:25.801917 7f3a96887a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:49:25.801918 7f3a96887a80 Options.target_file_size_base: 67108864
+2021/03/14-07:49:25.801918 7f3a96887a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:49:25.801919 7f3a96887a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:49:25.801920 7f3a96887a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:49:25.801920 7f3a96887a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:49:25.801922 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:49:25.801931 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:49:25.801932 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:49:25.801932 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:49:25.801933 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:49:25.801934 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:49:25.801934 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:49:25.801935 7f3a96887a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:49:25.801935 7f3a96887a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:49:25.801936 7f3a96887a80 Options.arena_block_size: 16777216
+2021/03/14-07:49:25.801937 7f3a96887a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:49:25.801937 7f3a96887a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:49:25.801938 7f3a96887a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:49:25.801939 7f3a96887a80 Options.disable_auto_compactions: 0
+2021/03/14-07:49:25.801941 7f3a96887a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:49:25.801941 7f3a96887a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:49:25.801942 7f3a96887a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:49:25.801943 7f3a96887a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:49:25.801943 7f3a96887a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:49:25.801944 7f3a96887a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:49:25.801944 7f3a96887a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:49:25.801946 7f3a96887a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:49:25.801946 7f3a96887a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:49:25.801947 7f3a96887a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:49:25.801947 7f3a96887a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:49:25.801948 7f3a96887a80 Options.table_properties_collectors:
+2021/03/14-07:49:25.801949 7f3a96887a80 Options.inplace_update_support: 0
+2021/03/14-07:49:25.801949 7f3a96887a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:49:25.801950 7f3a96887a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:49:25.801951 7f3a96887a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:49:25.801951 7f3a96887a80 Options.bloom_locality: 0
+2021/03/14-07:49:25.801952 7f3a96887a80 Options.max_successive_merges: 0
+2021/03/14-07:49:25.801953 7f3a96887a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:49:25.801953 7f3a96887a80 Options.paranoid_file_checks: 0
+2021/03/14-07:49:25.801954 7f3a96887a80 Options.force_consistency_checks: 0
+2021/03/14-07:49:25.801954 7f3a96887a80 Options.report_bg_io_stats: 0
+2021/03/14-07:49:25.802403 7f3a96887a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:49:25.802406 7f3a96887a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:49:25.802588 7f3a96887a80 EVENT_LOG_v1 {"time_micros": 1615704565802575, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:49:25.802594 7f3a96887a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:49:26.517730 7f3a96887a80 EVENT_LOG_v1 {"time_micros": 1615704566517727, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704567253107 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704567253107
new file mode 100644
index 0000000..7848b85
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704567253107
@@ -0,0 +1,186 @@
+2021/03/14-07:49:26.531122 7f3a96887a80 RocksDB version: 5.11.3
+2021/03/14-07:49:26.531179 7f3a96887a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:49:26.531181 7f3a96887a80 Compile date Mar 13 2021
+2021/03/14-07:49:26.531185 7f3a96887a80 DB SUMMARY
+2021/03/14-07:49:26.531365 7f3a96887a80 CURRENT file: CURRENT
+2021/03/14-07:49:26.531366 7f3a96887a80 IDENTITY file: IDENTITY
+2021/03/14-07:49:26.531382 7f3a96887a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:49:26.531383 7f3a96887a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:49:26.531384 7f3a96887a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:49:26.531390 7f3a96887a80 Options.error_if_exists: 0
+2021/03/14-07:49:26.531391 7f3a96887a80 Options.create_if_missing: 1
+2021/03/14-07:49:26.531391 7f3a96887a80 Options.paranoid_checks: 1
+2021/03/14-07:49:26.531392 7f3a96887a80 Options.env: 0x7f3a97241080
+2021/03/14-07:49:26.531393 7f3a96887a80 Options.info_log: 0x14deca0
+2021/03/14-07:49:26.531393 7f3a96887a80 Options.max_file_opening_threads: 16
+2021/03/14-07:49:26.531394 7f3a96887a80 Options.statistics: (nil)
+2021/03/14-07:49:26.531394 7f3a96887a80 Options.use_fsync: 0
+2021/03/14-07:49:26.531395 7f3a96887a80 Options.max_log_file_size: 0
+2021/03/14-07:49:26.531396 7f3a96887a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:49:26.531396 7f3a96887a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:49:26.531397 7f3a96887a80 Options.keep_log_file_num: 1000
+2021/03/14-07:49:26.531397 7f3a96887a80 Options.recycle_log_file_num: 0
+2021/03/14-07:49:26.531398 7f3a96887a80 Options.allow_fallocate: 1
+2021/03/14-07:49:26.531399 7f3a96887a80 Options.allow_mmap_reads: 0
+2021/03/14-07:49:26.531399 7f3a96887a80 Options.allow_mmap_writes: 0
+2021/03/14-07:49:26.531400 7f3a96887a80 Options.use_direct_reads: 0
+2021/03/14-07:49:26.531400 7f3a96887a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:49:26.531401 7f3a96887a80 Options.create_missing_column_families: 0
+2021/03/14-07:49:26.531401 7f3a96887a80 Options.db_log_dir:
+2021/03/14-07:49:26.531402 7f3a96887a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:49:26.531402 7f3a96887a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:49:26.531403 7f3a96887a80 Options.max_subcompactions: 1
+2021/03/14-07:49:26.531404 7f3a96887a80 Options.max_background_flushes: -1
+2021/03/14-07:49:26.531404 7f3a96887a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:49:26.531405 7f3a96887a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:49:26.531405 7f3a96887a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:49:26.531406 7f3a96887a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:49:26.531406 7f3a96887a80 Options.advise_random_on_open: 1
+2021/03/14-07:49:26.531407 7f3a96887a80 Options.db_write_buffer_size: 0
+2021/03/14-07:49:26.531407 7f3a96887a80 Options.write_buffer_manager: 0x14c6b90
+2021/03/14-07:49:26.531408 7f3a96887a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:49:26.531409 7f3a96887a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:49:26.531409 7f3a96887a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:49:26.531410 7f3a96887a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:49:26.531410 7f3a96887a80 Options.rate_limiter: (nil)
+2021/03/14-07:49:26.531412 7f3a96887a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:49:26.531420 7f3a96887a80 Options.wal_recovery_mode: 2
+2021/03/14-07:49:26.531421 7f3a96887a80 Options.enable_thread_tracking: 0
+2021/03/14-07:49:26.531422 7f3a96887a80 Options.enable_pipelined_write: 0
+2021/03/14-07:49:26.531422 7f3a96887a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:49:26.531423 7f3a96887a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:49:26.531423 7f3a96887a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:49:26.531424 7f3a96887a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:49:26.531425 7f3a96887a80 Options.row_cache: None
+2021/03/14-07:49:26.531425 7f3a96887a80 Options.wal_filter: None
+2021/03/14-07:49:26.531426 7f3a96887a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:49:26.531426 7f3a96887a80 Options.allow_ingest_behind: 0
+2021/03/14-07:49:26.531427 7f3a96887a80 Options.preserve_deletes: 0
+2021/03/14-07:49:26.531427 7f3a96887a80 Options.two_write_queues: 0
+2021/03/14-07:49:26.531428 7f3a96887a80 Options.manual_wal_flush: 0
+2021/03/14-07:49:26.531429 7f3a96887a80 Options.max_background_jobs: 16
+2021/03/14-07:49:26.531429 7f3a96887a80 Options.max_background_compactions: -1
+2021/03/14-07:49:26.531430 7f3a96887a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:49:26.531431 7f3a96887a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:49:26.531431 7f3a96887a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:49:26.531432 7f3a96887a80 Options.max_total_wal_size: 0
+2021/03/14-07:49:26.531432 7f3a96887a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:49:26.531433 7f3a96887a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:49:26.531434 7f3a96887a80 Options.max_open_files: -1
+2021/03/14-07:49:26.531434 7f3a96887a80 Options.bytes_per_sync: 0
+2021/03/14-07:49:26.531435 7f3a96887a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:49:26.531435 7f3a96887a80 Options.compaction_readahead_size: 0
+2021/03/14-07:49:26.531436 7f3a96887a80 Compression algorithms supported:
+2021/03/14-07:49:26.531436 7f3a96887a80 Snappy supported: 1
+2021/03/14-07:49:26.531437 7f3a96887a80 Zlib supported: 1
+2021/03/14-07:49:26.531437 7f3a96887a80 Bzip supported: 1
+2021/03/14-07:49:26.531438 7f3a96887a80 LZ4 supported: 1
+2021/03/14-07:49:26.531439 7f3a96887a80 ZSTDNotFinal supported: 1
+2021/03/14-07:49:26.531443 7f3a96887a80 ZSTD supported: 1
+2021/03/14-07:49:26.531446 7f3a96887a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:49:26.531447 7f3a96887a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:49:26.531537 7f3a96887a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:49:26.531587 7f3a96887a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:49:26.531589 7f3a96887a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:49:26.531590 7f3a96887a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:49:26.531590 7f3a96887a80 Options.compaction_filter: None
+2021/03/14-07:49:26.531591 7f3a96887a80 Options.compaction_filter_factory: None
+2021/03/14-07:49:26.531591 7f3a96887a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:49:26.531592 7f3a96887a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:49:26.531605 7f3a96887a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x14d6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x14bbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:49:26.531606 7f3a96887a80 Options.write_buffer_size: 134217728
+2021/03/14-07:49:26.531606 7f3a96887a80 Options.max_write_buffer_number: 6
+2021/03/14-07:49:26.531607 7f3a96887a80 Options.compression[0]: NoCompression
+2021/03/14-07:49:26.531608 7f3a96887a80 Options.compression[1]: NoCompression
+2021/03/14-07:49:26.531609 7f3a96887a80 Options.compression[2]: Snappy
+2021/03/14-07:49:26.531609 7f3a96887a80 Options.compression[3]: Snappy
+2021/03/14-07:49:26.531610 7f3a96887a80 Options.compression[4]: Snappy
+2021/03/14-07:49:26.531610 7f3a96887a80 Options.compression[5]: Snappy
+2021/03/14-07:49:26.531611 7f3a96887a80 Options.compression[6]: Snappy
+2021/03/14-07:49:26.531611 7f3a96887a80 Options.bottommost_compression: Disabled
+2021/03/14-07:49:26.531612 7f3a96887a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:49:26.531613 7f3a96887a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:49:26.531613 7f3a96887a80 Options.num_levels: 7
+2021/03/14-07:49:26.531614 7f3a96887a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:49:26.531614 7f3a96887a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:49:26.531615 7f3a96887a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:49:26.531616 7f3a96887a80 Options.compression_opts.level: -1
+2021/03/14-07:49:26.531616 7f3a96887a80 Options.compression_opts.strategy: 0
+2021/03/14-07:49:26.531617 7f3a96887a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:49:26.531617 7f3a96887a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:49:26.531618 7f3a96887a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:49:26.531618 7f3a96887a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:49:26.531619 7f3a96887a80 Options.target_file_size_base: 67108864
+2021/03/14-07:49:26.531620 7f3a96887a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:49:26.531620 7f3a96887a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:49:26.531621 7f3a96887a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:49:26.531621 7f3a96887a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:49:26.531623 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:49:26.531631 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:49:26.531631 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:49:26.531632 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:49:26.531633 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:49:26.531633 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:49:26.531634 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:49:26.531634 7f3a96887a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:49:26.531635 7f3a96887a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:49:26.531635 7f3a96887a80 Options.arena_block_size: 16777216
+2021/03/14-07:49:26.531636 7f3a96887a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:49:26.531637 7f3a96887a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:49:26.531637 7f3a96887a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:49:26.531638 7f3a96887a80 Options.disable_auto_compactions: 0
+2021/03/14-07:49:26.531639 7f3a96887a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:49:26.531640 7f3a96887a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:49:26.531641 7f3a96887a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:49:26.531641 7f3a96887a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:49:26.531642 7f3a96887a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:49:26.531642 7f3a96887a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:49:26.531643 7f3a96887a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:49:26.531644 7f3a96887a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:49:26.531644 7f3a96887a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:49:26.531645 7f3a96887a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:49:26.531646 7f3a96887a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:49:26.531646 7f3a96887a80 Options.table_properties_collectors:
+2021/03/14-07:49:26.531647 7f3a96887a80 Options.inplace_update_support: 0
+2021/03/14-07:49:26.531647 7f3a96887a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:49:26.531648 7f3a96887a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:49:26.531649 7f3a96887a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:49:26.531649 7f3a96887a80 Options.bloom_locality: 0
+2021/03/14-07:49:26.531650 7f3a96887a80 Options.max_successive_merges: 0
+2021/03/14-07:49:26.531650 7f3a96887a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:49:26.531651 7f3a96887a80 Options.paranoid_file_checks: 0
+2021/03/14-07:49:26.531651 7f3a96887a80 Options.force_consistency_checks: 0
+2021/03/14-07:49:26.531652 7f3a96887a80 Options.report_bg_io_stats: 0
+2021/03/14-07:49:26.532020 7f3a96887a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:49:26.532022 7f3a96887a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:49:26.532181 7f3a96887a80 EVENT_LOG_v1 {"time_micros": 1615704566532171, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:49:26.532187 7f3a96887a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:49:27.240356 7f3a96887a80 EVENT_LOG_v1 {"time_micros": 1615704567240352, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704567966699 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704567966699
new file mode 100644
index 0000000..2dbcb14
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704567966699
@@ -0,0 +1,186 @@
+2021/03/14-07:49:27.253557 7f3a96887a80 RocksDB version: 5.11.3
+2021/03/14-07:49:27.253613 7f3a96887a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:49:27.253615 7f3a96887a80 Compile date Mar 13 2021
+2021/03/14-07:49:27.253620 7f3a96887a80 DB SUMMARY
+2021/03/14-07:49:27.253780 7f3a96887a80 CURRENT file: CURRENT
+2021/03/14-07:49:27.253781 7f3a96887a80 IDENTITY file: IDENTITY
+2021/03/14-07:49:27.253797 7f3a96887a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:49:27.253798 7f3a96887a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:49:27.253799 7f3a96887a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:49:27.253806 7f3a96887a80 Options.error_if_exists: 0
+2021/03/14-07:49:27.253806 7f3a96887a80 Options.create_if_missing: 1
+2021/03/14-07:49:27.253807 7f3a96887a80 Options.paranoid_checks: 1
+2021/03/14-07:49:27.253808 7f3a96887a80 Options.env: 0x7f3a97241080
+2021/03/14-07:49:27.253808 7f3a96887a80 Options.info_log: 0x14deca0
+2021/03/14-07:49:27.253809 7f3a96887a80 Options.max_file_opening_threads: 16
+2021/03/14-07:49:27.253809 7f3a96887a80 Options.statistics: (nil)
+2021/03/14-07:49:27.253810 7f3a96887a80 Options.use_fsync: 0
+2021/03/14-07:49:27.253811 7f3a96887a80 Options.max_log_file_size: 0
+2021/03/14-07:49:27.253811 7f3a96887a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:49:27.253812 7f3a96887a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:49:27.253812 7f3a96887a80 Options.keep_log_file_num: 1000
+2021/03/14-07:49:27.253813 7f3a96887a80 Options.recycle_log_file_num: 0
+2021/03/14-07:49:27.253814 7f3a96887a80 Options.allow_fallocate: 1
+2021/03/14-07:49:27.253814 7f3a96887a80 Options.allow_mmap_reads: 0
+2021/03/14-07:49:27.253815 7f3a96887a80 Options.allow_mmap_writes: 0
+2021/03/14-07:49:27.253815 7f3a96887a80 Options.use_direct_reads: 0
+2021/03/14-07:49:27.253816 7f3a96887a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:49:27.253816 7f3a96887a80 Options.create_missing_column_families: 0
+2021/03/14-07:49:27.253817 7f3a96887a80 Options.db_log_dir:
+2021/03/14-07:49:27.253817 7f3a96887a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:49:27.253818 7f3a96887a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:49:27.253819 7f3a96887a80 Options.max_subcompactions: 1
+2021/03/14-07:49:27.253819 7f3a96887a80 Options.max_background_flushes: -1
+2021/03/14-07:49:27.253820 7f3a96887a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:49:27.253820 7f3a96887a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:49:27.253821 7f3a96887a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:49:27.253821 7f3a96887a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:49:27.253822 7f3a96887a80 Options.advise_random_on_open: 1
+2021/03/14-07:49:27.253823 7f3a96887a80 Options.db_write_buffer_size: 0
+2021/03/14-07:49:27.253823 7f3a96887a80 Options.write_buffer_manager: 0x14c6b90
+2021/03/14-07:49:27.253824 7f3a96887a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:49:27.253824 7f3a96887a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:49:27.253825 7f3a96887a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:49:27.253825 7f3a96887a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:49:27.253826 7f3a96887a80 Options.rate_limiter: (nil)
+2021/03/14-07:49:27.253827 7f3a96887a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:49:27.253835 7f3a96887a80 Options.wal_recovery_mode: 2
+2021/03/14-07:49:27.253836 7f3a96887a80 Options.enable_thread_tracking: 0
+2021/03/14-07:49:27.253836 7f3a96887a80 Options.enable_pipelined_write: 0
+2021/03/14-07:49:27.253837 7f3a96887a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:49:27.253837 7f3a96887a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:49:27.253838 7f3a96887a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:49:27.253838 7f3a96887a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:49:27.253839 7f3a96887a80 Options.row_cache: None
+2021/03/14-07:49:27.253840 7f3a96887a80 Options.wal_filter: None
+2021/03/14-07:49:27.253840 7f3a96887a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:49:27.253841 7f3a96887a80 Options.allow_ingest_behind: 0
+2021/03/14-07:49:27.253841 7f3a96887a80 Options.preserve_deletes: 0
+2021/03/14-07:49:27.253842 7f3a96887a80 Options.two_write_queues: 0
+2021/03/14-07:49:27.253842 7f3a96887a80 Options.manual_wal_flush: 0
+2021/03/14-07:49:27.253844 7f3a96887a80 Options.max_background_jobs: 16
+2021/03/14-07:49:27.253844 7f3a96887a80 Options.max_background_compactions: -1
+2021/03/14-07:49:27.253845 7f3a96887a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:49:27.253845 7f3a96887a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:49:27.253846 7f3a96887a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:49:27.253846 7f3a96887a80 Options.max_total_wal_size: 0
+2021/03/14-07:49:27.253847 7f3a96887a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:49:27.253847 7f3a96887a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:49:27.253848 7f3a96887a80 Options.max_open_files: -1
+2021/03/14-07:49:27.253849 7f3a96887a80 Options.bytes_per_sync: 0
+2021/03/14-07:49:27.253849 7f3a96887a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:49:27.253850 7f3a96887a80 Options.compaction_readahead_size: 0
+2021/03/14-07:49:27.253850 7f3a96887a80 Compression algorithms supported:
+2021/03/14-07:49:27.253851 7f3a96887a80 Snappy supported: 1
+2021/03/14-07:49:27.253851 7f3a96887a80 Zlib supported: 1
+2021/03/14-07:49:27.253852 7f3a96887a80 Bzip supported: 1
+2021/03/14-07:49:27.253853 7f3a96887a80 LZ4 supported: 1
+2021/03/14-07:49:27.253853 7f3a96887a80 ZSTDNotFinal supported: 1
+2021/03/14-07:49:27.253857 7f3a96887a80 ZSTD supported: 1
+2021/03/14-07:49:27.253860 7f3a96887a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:49:27.253861 7f3a96887a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:49:27.253949 7f3a96887a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:49:27.254000 7f3a96887a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:49:27.254002 7f3a96887a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:49:27.254002 7f3a96887a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:49:27.254003 7f3a96887a80 Options.compaction_filter: None
+2021/03/14-07:49:27.254004 7f3a96887a80 Options.compaction_filter_factory: None
+2021/03/14-07:49:27.254004 7f3a96887a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:49:27.254005 7f3a96887a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:49:27.254017 7f3a96887a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x14d6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x14bbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:49:27.254018 7f3a96887a80 Options.write_buffer_size: 134217728
+2021/03/14-07:49:27.254019 7f3a96887a80 Options.max_write_buffer_number: 6
+2021/03/14-07:49:27.254020 7f3a96887a80 Options.compression[0]: NoCompression
+2021/03/14-07:49:27.254020 7f3a96887a80 Options.compression[1]: NoCompression
+2021/03/14-07:49:27.254021 7f3a96887a80 Options.compression[2]: Snappy
+2021/03/14-07:49:27.254022 7f3a96887a80 Options.compression[3]: Snappy
+2021/03/14-07:49:27.254022 7f3a96887a80 Options.compression[4]: Snappy
+2021/03/14-07:49:27.254023 7f3a96887a80 Options.compression[5]: Snappy
+2021/03/14-07:49:27.254023 7f3a96887a80 Options.compression[6]: Snappy
+2021/03/14-07:49:27.254024 7f3a96887a80 Options.bottommost_compression: Disabled
+2021/03/14-07:49:27.254025 7f3a96887a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:49:27.254025 7f3a96887a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:49:27.254026 7f3a96887a80 Options.num_levels: 7
+2021/03/14-07:49:27.254026 7f3a96887a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:49:27.254027 7f3a96887a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:49:27.254027 7f3a96887a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:49:27.254028 7f3a96887a80 Options.compression_opts.level: -1
+2021/03/14-07:49:27.254029 7f3a96887a80 Options.compression_opts.strategy: 0
+2021/03/14-07:49:27.254029 7f3a96887a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:49:27.254030 7f3a96887a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:49:27.254030 7f3a96887a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:49:27.254031 7f3a96887a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:49:27.254031 7f3a96887a80 Options.target_file_size_base: 67108864
+2021/03/14-07:49:27.254032 7f3a96887a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:49:27.254033 7f3a96887a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:49:27.254033 7f3a96887a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:49:27.254034 7f3a96887a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:49:27.254036 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:49:27.254043 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:49:27.254044 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:49:27.254044 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:49:27.254045 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:49:27.254045 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:49:27.254046 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:49:27.254046 7f3a96887a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:49:27.254047 7f3a96887a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:49:27.254048 7f3a96887a80 Options.arena_block_size: 16777216
+2021/03/14-07:49:27.254048 7f3a96887a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:49:27.254049 7f3a96887a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:49:27.254049 7f3a96887a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:49:27.254050 7f3a96887a80 Options.disable_auto_compactions: 0
+2021/03/14-07:49:27.254052 7f3a96887a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:49:27.254052 7f3a96887a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:49:27.254053 7f3a96887a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:49:27.254053 7f3a96887a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:49:27.254054 7f3a96887a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:49:27.254055 7f3a96887a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:49:27.254055 7f3a96887a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:49:27.254056 7f3a96887a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:49:27.254057 7f3a96887a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:49:27.254057 7f3a96887a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:49:27.254058 7f3a96887a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:49:27.254058 7f3a96887a80 Options.table_properties_collectors:
+2021/03/14-07:49:27.254059 7f3a96887a80 Options.inplace_update_support: 0
+2021/03/14-07:49:27.254060 7f3a96887a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:49:27.254060 7f3a96887a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:49:27.254061 7f3a96887a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:49:27.254062 7f3a96887a80 Options.bloom_locality: 0
+2021/03/14-07:49:27.254062 7f3a96887a80 Options.max_successive_merges: 0
+2021/03/14-07:49:27.254063 7f3a96887a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:49:27.254064 7f3a96887a80 Options.paranoid_file_checks: 0
+2021/03/14-07:49:27.254064 7f3a96887a80 Options.force_consistency_checks: 0
+2021/03/14-07:49:27.254065 7f3a96887a80 Options.report_bg_io_stats: 0
+2021/03/14-07:49:27.254442 7f3a96887a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:49:27.254444 7f3a96887a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:49:27.254608 7f3a96887a80 EVENT_LOG_v1 {"time_micros": 1615704567254598, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:49:27.254614 7f3a96887a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:49:27.953588 7f3a96887a80 EVENT_LOG_v1 {"time_micros": 1615704567953585, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704638094605 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704638094605
new file mode 100644
index 0000000..24d6de7
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704638094605
@@ -0,0 +1,186 @@
+2021/03/14-07:49:27.967133 7f3a96887a80 RocksDB version: 5.11.3
+2021/03/14-07:49:27.967189 7f3a96887a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:49:27.967191 7f3a96887a80 Compile date Mar 13 2021
+2021/03/14-07:49:27.967195 7f3a96887a80 DB SUMMARY
+2021/03/14-07:49:27.967366 7f3a96887a80 CURRENT file: CURRENT
+2021/03/14-07:49:27.967367 7f3a96887a80 IDENTITY file: IDENTITY
+2021/03/14-07:49:27.967383 7f3a96887a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:49:27.967384 7f3a96887a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:49:27.967385 7f3a96887a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:49:27.967391 7f3a96887a80 Options.error_if_exists: 0
+2021/03/14-07:49:27.967392 7f3a96887a80 Options.create_if_missing: 1
+2021/03/14-07:49:27.967393 7f3a96887a80 Options.paranoid_checks: 1
+2021/03/14-07:49:27.967393 7f3a96887a80 Options.env: 0x7f3a97241080
+2021/03/14-07:49:27.967394 7f3a96887a80 Options.info_log: 0x14deca0
+2021/03/14-07:49:27.967395 7f3a96887a80 Options.max_file_opening_threads: 16
+2021/03/14-07:49:27.967395 7f3a96887a80 Options.statistics: (nil)
+2021/03/14-07:49:27.967396 7f3a96887a80 Options.use_fsync: 0
+2021/03/14-07:49:27.967396 7f3a96887a80 Options.max_log_file_size: 0
+2021/03/14-07:49:27.967397 7f3a96887a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:49:27.967398 7f3a96887a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:49:27.967398 7f3a96887a80 Options.keep_log_file_num: 1000
+2021/03/14-07:49:27.967399 7f3a96887a80 Options.recycle_log_file_num: 0
+2021/03/14-07:49:27.967400 7f3a96887a80 Options.allow_fallocate: 1
+2021/03/14-07:49:27.967400 7f3a96887a80 Options.allow_mmap_reads: 0
+2021/03/14-07:49:27.967401 7f3a96887a80 Options.allow_mmap_writes: 0
+2021/03/14-07:49:27.967401 7f3a96887a80 Options.use_direct_reads: 0
+2021/03/14-07:49:27.967402 7f3a96887a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:49:27.967402 7f3a96887a80 Options.create_missing_column_families: 0
+2021/03/14-07:49:27.967403 7f3a96887a80 Options.db_log_dir:
+2021/03/14-07:49:27.967403 7f3a96887a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:49:27.967404 7f3a96887a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:49:27.967405 7f3a96887a80 Options.max_subcompactions: 1
+2021/03/14-07:49:27.967405 7f3a96887a80 Options.max_background_flushes: -1
+2021/03/14-07:49:27.967406 7f3a96887a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:49:27.967406 7f3a96887a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:49:27.967407 7f3a96887a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:49:27.967407 7f3a96887a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:49:27.967408 7f3a96887a80 Options.advise_random_on_open: 1
+2021/03/14-07:49:27.967409 7f3a96887a80 Options.db_write_buffer_size: 0
+2021/03/14-07:49:27.967409 7f3a96887a80 Options.write_buffer_manager: 0x14c6b90
+2021/03/14-07:49:27.967410 7f3a96887a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:49:27.967410 7f3a96887a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:49:27.967411 7f3a96887a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:49:27.967411 7f3a96887a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:49:27.967412 7f3a96887a80 Options.rate_limiter: (nil)
+2021/03/14-07:49:27.967413 7f3a96887a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:49:27.967422 7f3a96887a80 Options.wal_recovery_mode: 2
+2021/03/14-07:49:27.967423 7f3a96887a80 Options.enable_thread_tracking: 0
+2021/03/14-07:49:27.967423 7f3a96887a80 Options.enable_pipelined_write: 0
+2021/03/14-07:49:27.967424 7f3a96887a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:49:27.967424 7f3a96887a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:49:27.967425 7f3a96887a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:49:27.967425 7f3a96887a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:49:27.967426 7f3a96887a80 Options.row_cache: None
+2021/03/14-07:49:27.967426 7f3a96887a80 Options.wal_filter: None
+2021/03/14-07:49:27.967427 7f3a96887a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:49:27.967428 7f3a96887a80 Options.allow_ingest_behind: 0
+2021/03/14-07:49:27.967428 7f3a96887a80 Options.preserve_deletes: 0
+2021/03/14-07:49:27.967429 7f3a96887a80 Options.two_write_queues: 0
+2021/03/14-07:49:27.967429 7f3a96887a80 Options.manual_wal_flush: 0
+2021/03/14-07:49:27.967430 7f3a96887a80 Options.max_background_jobs: 16
+2021/03/14-07:49:27.967431 7f3a96887a80 Options.max_background_compactions: -1
+2021/03/14-07:49:27.967432 7f3a96887a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:49:27.967432 7f3a96887a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:49:27.967433 7f3a96887a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:49:27.967433 7f3a96887a80 Options.max_total_wal_size: 0
+2021/03/14-07:49:27.967434 7f3a96887a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:49:27.967434 7f3a96887a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:49:27.967435 7f3a96887a80 Options.max_open_files: -1
+2021/03/14-07:49:27.967436 7f3a96887a80 Options.bytes_per_sync: 0
+2021/03/14-07:49:27.967436 7f3a96887a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:49:27.967437 7f3a96887a80 Options.compaction_readahead_size: 0
+2021/03/14-07:49:27.967437 7f3a96887a80 Compression algorithms supported:
+2021/03/14-07:49:27.967438 7f3a96887a80 Snappy supported: 1
+2021/03/14-07:49:27.967438 7f3a96887a80 Zlib supported: 1
+2021/03/14-07:49:27.967439 7f3a96887a80 Bzip supported: 1
+2021/03/14-07:49:27.967439 7f3a96887a80 LZ4 supported: 1
+2021/03/14-07:49:27.967440 7f3a96887a80 ZSTDNotFinal supported: 1
+2021/03/14-07:49:27.967444 7f3a96887a80 ZSTD supported: 1
+2021/03/14-07:49:27.967447 7f3a96887a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:49:27.967448 7f3a96887a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:49:27.967535 7f3a96887a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:49:27.967585 7f3a96887a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:49:27.967587 7f3a96887a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:49:27.967587 7f3a96887a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:49:27.967588 7f3a96887a80 Options.compaction_filter: None
+2021/03/14-07:49:27.967589 7f3a96887a80 Options.compaction_filter_factory: None
+2021/03/14-07:49:27.967589 7f3a96887a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:49:27.967590 7f3a96887a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:49:27.967603 7f3a96887a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x14d6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x14bbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:49:27.967604 7f3a96887a80 Options.write_buffer_size: 134217728
+2021/03/14-07:49:27.967604 7f3a96887a80 Options.max_write_buffer_number: 6
+2021/03/14-07:49:27.967605 7f3a96887a80 Options.compression[0]: NoCompression
+2021/03/14-07:49:27.967606 7f3a96887a80 Options.compression[1]: NoCompression
+2021/03/14-07:49:27.967607 7f3a96887a80 Options.compression[2]: Snappy
+2021/03/14-07:49:27.967607 7f3a96887a80 Options.compression[3]: Snappy
+2021/03/14-07:49:27.967608 7f3a96887a80 Options.compression[4]: Snappy
+2021/03/14-07:49:27.967608 7f3a96887a80 Options.compression[5]: Snappy
+2021/03/14-07:49:27.967609 7f3a96887a80 Options.compression[6]: Snappy
+2021/03/14-07:49:27.967609 7f3a96887a80 Options.bottommost_compression: Disabled
+2021/03/14-07:49:27.967610 7f3a96887a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:49:27.967611 7f3a96887a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:49:27.967611 7f3a96887a80 Options.num_levels: 7
+2021/03/14-07:49:27.967612 7f3a96887a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:49:27.967613 7f3a96887a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:49:27.967613 7f3a96887a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:49:27.967614 7f3a96887a80 Options.compression_opts.level: -1
+2021/03/14-07:49:27.967614 7f3a96887a80 Options.compression_opts.strategy: 0
+2021/03/14-07:49:27.967615 7f3a96887a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:49:27.967615 7f3a96887a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:49:27.967616 7f3a96887a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:49:27.967616 7f3a96887a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:49:27.967617 7f3a96887a80 Options.target_file_size_base: 67108864
+2021/03/14-07:49:27.967618 7f3a96887a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:49:27.967618 7f3a96887a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:49:27.967619 7f3a96887a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:49:27.967620 7f3a96887a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:49:27.967621 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:49:27.967629 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:49:27.967630 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:49:27.967630 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:49:27.967631 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:49:27.967631 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:49:27.967632 7f3a96887a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:49:27.967632 7f3a96887a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:49:27.967633 7f3a96887a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:49:27.967634 7f3a96887a80 Options.arena_block_size: 16777216
+2021/03/14-07:49:27.967634 7f3a96887a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:49:27.967635 7f3a96887a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:49:27.967635 7f3a96887a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:49:27.967636 7f3a96887a80 Options.disable_auto_compactions: 0
+2021/03/14-07:49:27.967638 7f3a96887a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:49:27.967638 7f3a96887a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:49:27.967639 7f3a96887a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:49:27.967639 7f3a96887a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:49:27.967640 7f3a96887a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:49:27.967641 7f3a96887a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:49:27.967641 7f3a96887a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:49:27.967642 7f3a96887a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:49:27.967643 7f3a96887a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:49:27.967643 7f3a96887a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:49:27.967644 7f3a96887a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:49:27.967644 7f3a96887a80 Options.table_properties_collectors:
+2021/03/14-07:49:27.967645 7f3a96887a80 Options.inplace_update_support: 0
+2021/03/14-07:49:27.967646 7f3a96887a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:49:27.967646 7f3a96887a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:49:27.967647 7f3a96887a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:49:27.967648 7f3a96887a80 Options.bloom_locality: 0
+2021/03/14-07:49:27.967648 7f3a96887a80 Options.max_successive_merges: 0
+2021/03/14-07:49:27.967649 7f3a96887a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:49:27.967649 7f3a96887a80 Options.paranoid_file_checks: 0
+2021/03/14-07:49:27.967650 7f3a96887a80 Options.force_consistency_checks: 0
+2021/03/14-07:49:27.967650 7f3a96887a80 Options.report_bg_io_stats: 0
+2021/03/14-07:49:27.968032 7f3a96887a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:49:27.968034 7f3a96887a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:49:27.968195 7f3a96887a80 EVENT_LOG_v1 {"time_micros": 1615704567968185, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:49:27.968200 7f3a96887a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:49:28.667454 7f3a96887a80 EVENT_LOG_v1 {"time_micros": 1615704568667451, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704638839334 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704638839334
new file mode 100644
index 0000000..4ac93b4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704638839334
@@ -0,0 +1,186 @@
+2021/03/14-07:50:38.095135 7fb6805c7a80 RocksDB version: 5.11.3
+2021/03/14-07:50:38.095207 7fb6805c7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:50:38.095209 7fb6805c7a80 Compile date Mar 13 2021
+2021/03/14-07:50:38.095215 7fb6805c7a80 DB SUMMARY
+2021/03/14-07:50:38.095426 7fb6805c7a80 CURRENT file: CURRENT
+2021/03/14-07:50:38.095428 7fb6805c7a80 IDENTITY file: IDENTITY
+2021/03/14-07:50:38.095445 7fb6805c7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:50:38.095446 7fb6805c7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:50:38.095447 7fb6805c7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:50:38.095453 7fb6805c7a80 Options.error_if_exists: 0
+2021/03/14-07:50:38.095454 7fb6805c7a80 Options.create_if_missing: 1
+2021/03/14-07:50:38.095455 7fb6805c7a80 Options.paranoid_checks: 1
+2021/03/14-07:50:38.095455 7fb6805c7a80 Options.env: 0x7fb680f81080
+2021/03/14-07:50:38.095456 7fb6805c7a80 Options.info_log: 0x2014ca0
+2021/03/14-07:50:38.095457 7fb6805c7a80 Options.max_file_opening_threads: 16
+2021/03/14-07:50:38.095457 7fb6805c7a80 Options.statistics: (nil)
+2021/03/14-07:50:38.095458 7fb6805c7a80 Options.use_fsync: 0
+2021/03/14-07:50:38.095459 7fb6805c7a80 Options.max_log_file_size: 0
+2021/03/14-07:50:38.095459 7fb6805c7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:50:38.095460 7fb6805c7a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:50:38.095461 7fb6805c7a80 Options.keep_log_file_num: 1000
+2021/03/14-07:50:38.095461 7fb6805c7a80 Options.recycle_log_file_num: 0
+2021/03/14-07:50:38.095462 7fb6805c7a80 Options.allow_fallocate: 1
+2021/03/14-07:50:38.095463 7fb6805c7a80 Options.allow_mmap_reads: 0
+2021/03/14-07:50:38.095463 7fb6805c7a80 Options.allow_mmap_writes: 0
+2021/03/14-07:50:38.095464 7fb6805c7a80 Options.use_direct_reads: 0
+2021/03/14-07:50:38.095464 7fb6805c7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:50:38.095465 7fb6805c7a80 Options.create_missing_column_families: 0
+2021/03/14-07:50:38.095465 7fb6805c7a80 Options.db_log_dir:
+2021/03/14-07:50:38.095466 7fb6805c7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:50:38.095467 7fb6805c7a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:50:38.095467 7fb6805c7a80 Options.max_subcompactions: 1
+2021/03/14-07:50:38.095468 7fb6805c7a80 Options.max_background_flushes: -1
+2021/03/14-07:50:38.095469 7fb6805c7a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:50:38.095469 7fb6805c7a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:50:38.095470 7fb6805c7a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:50:38.095471 7fb6805c7a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:50:38.095471 7fb6805c7a80 Options.advise_random_on_open: 1
+2021/03/14-07:50:38.095472 7fb6805c7a80 Options.db_write_buffer_size: 0
+2021/03/14-07:50:38.095472 7fb6805c7a80 Options.write_buffer_manager: 0x1ffcb90
+2021/03/14-07:50:38.095473 7fb6805c7a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:50:38.095474 7fb6805c7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:50:38.095474 7fb6805c7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:50:38.095475 7fb6805c7a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:50:38.095475 7fb6805c7a80 Options.rate_limiter: (nil)
+2021/03/14-07:50:38.095477 7fb6805c7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:50:38.095487 7fb6805c7a80 Options.wal_recovery_mode: 2
+2021/03/14-07:50:38.095488 7fb6805c7a80 Options.enable_thread_tracking: 0
+2021/03/14-07:50:38.095488 7fb6805c7a80 Options.enable_pipelined_write: 0
+2021/03/14-07:50:38.095489 7fb6805c7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:50:38.095490 7fb6805c7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:50:38.095490 7fb6805c7a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:50:38.095491 7fb6805c7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:50:38.095491 7fb6805c7a80 Options.row_cache: None
+2021/03/14-07:50:38.095492 7fb6805c7a80 Options.wal_filter: None
+2021/03/14-07:50:38.095493 7fb6805c7a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:50:38.095493 7fb6805c7a80 Options.allow_ingest_behind: 0
+2021/03/14-07:50:38.095494 7fb6805c7a80 Options.preserve_deletes: 0
+2021/03/14-07:50:38.095494 7fb6805c7a80 Options.two_write_queues: 0
+2021/03/14-07:50:38.095495 7fb6805c7a80 Options.manual_wal_flush: 0
+2021/03/14-07:50:38.095497 7fb6805c7a80 Options.max_background_jobs: 16
+2021/03/14-07:50:38.095497 7fb6805c7a80 Options.max_background_compactions: -1
+2021/03/14-07:50:38.095498 7fb6805c7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:50:38.095498 7fb6805c7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:50:38.095499 7fb6805c7a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:50:38.095500 7fb6805c7a80 Options.max_total_wal_size: 0
+2021/03/14-07:50:38.095500 7fb6805c7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:50:38.095501 7fb6805c7a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:50:38.095502 7fb6805c7a80 Options.max_open_files: -1
+2021/03/14-07:50:38.095502 7fb6805c7a80 Options.bytes_per_sync: 0
+2021/03/14-07:50:38.095503 7fb6805c7a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:50:38.095503 7fb6805c7a80 Options.compaction_readahead_size: 0
+2021/03/14-07:50:38.095504 7fb6805c7a80 Compression algorithms supported:
+2021/03/14-07:50:38.095504 7fb6805c7a80 Snappy supported: 1
+2021/03/14-07:50:38.095505 7fb6805c7a80 Zlib supported: 1
+2021/03/14-07:50:38.095506 7fb6805c7a80 Bzip supported: 1
+2021/03/14-07:50:38.095506 7fb6805c7a80 LZ4 supported: 1
+2021/03/14-07:50:38.095507 7fb6805c7a80 ZSTDNotFinal supported: 1
+2021/03/14-07:50:38.095512 7fb6805c7a80 ZSTD supported: 1
+2021/03/14-07:50:38.095516 7fb6805c7a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:50:38.095518 7fb6805c7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:50:38.095644 7fb6805c7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:50:38.095713 7fb6805c7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:50:38.095715 7fb6805c7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:50:38.095716 7fb6805c7a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:50:38.095717 7fb6805c7a80 Options.compaction_filter: None
+2021/03/14-07:50:38.095718 7fb6805c7a80 Options.compaction_filter_factory: None
+2021/03/14-07:50:38.095718 7fb6805c7a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:50:38.095720 7fb6805c7a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:50:38.095734 7fb6805c7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x200c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1ff1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:50:38.095735 7fb6805c7a80 Options.write_buffer_size: 134217728
+2021/03/14-07:50:38.095736 7fb6805c7a80 Options.max_write_buffer_number: 6
+2021/03/14-07:50:38.095736 7fb6805c7a80 Options.compression[0]: NoCompression
+2021/03/14-07:50:38.095737 7fb6805c7a80 Options.compression[1]: NoCompression
+2021/03/14-07:50:38.095738 7fb6805c7a80 Options.compression[2]: Snappy
+2021/03/14-07:50:38.095739 7fb6805c7a80 Options.compression[3]: Snappy
+2021/03/14-07:50:38.095739 7fb6805c7a80 Options.compression[4]: Snappy
+2021/03/14-07:50:38.095740 7fb6805c7a80 Options.compression[5]: Snappy
+2021/03/14-07:50:38.095740 7fb6805c7a80 Options.compression[6]: Snappy
+2021/03/14-07:50:38.095741 7fb6805c7a80 Options.bottommost_compression: Disabled
+2021/03/14-07:50:38.095742 7fb6805c7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:50:38.095742 7fb6805c7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:50:38.095743 7fb6805c7a80 Options.num_levels: 7
+2021/03/14-07:50:38.095744 7fb6805c7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:50:38.095744 7fb6805c7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:50:38.095745 7fb6805c7a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:50:38.095746 7fb6805c7a80 Options.compression_opts.level: -1
+2021/03/14-07:50:38.095746 7fb6805c7a80 Options.compression_opts.strategy: 0
+2021/03/14-07:50:38.095747 7fb6805c7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:50:38.095747 7fb6805c7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:50:38.095748 7fb6805c7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:50:38.095749 7fb6805c7a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:50:38.095749 7fb6805c7a80 Options.target_file_size_base: 67108864
+2021/03/14-07:50:38.095750 7fb6805c7a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:50:38.095751 7fb6805c7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:50:38.095751 7fb6805c7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:50:38.095752 7fb6805c7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:50:38.095754 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:50:38.095762 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:50:38.095763 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:50:38.095764 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:50:38.095764 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:50:38.095765 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:50:38.095766 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:50:38.095766 7fb6805c7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:50:38.095767 7fb6805c7a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:50:38.095767 7fb6805c7a80 Options.arena_block_size: 16777216
+2021/03/14-07:50:38.095768 7fb6805c7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:50:38.095769 7fb6805c7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:50:38.095769 7fb6805c7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:50:38.095770 7fb6805c7a80 Options.disable_auto_compactions: 0
+2021/03/14-07:50:38.095772 7fb6805c7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:50:38.095773 7fb6805c7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:50:38.095773 7fb6805c7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:50:38.095774 7fb6805c7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:50:38.095774 7fb6805c7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:50:38.095775 7fb6805c7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:50:38.095776 7fb6805c7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:50:38.095777 7fb6805c7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:50:38.095777 7fb6805c7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:50:38.095778 7fb6805c7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:50:38.095779 7fb6805c7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:50:38.095779 7fb6805c7a80 Options.table_properties_collectors:
+2021/03/14-07:50:38.095780 7fb6805c7a80 Options.inplace_update_support: 0
+2021/03/14-07:50:38.095780 7fb6805c7a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:50:38.095781 7fb6805c7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:50:38.095782 7fb6805c7a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:50:38.095783 7fb6805c7a80 Options.bloom_locality: 0
+2021/03/14-07:50:38.095783 7fb6805c7a80 Options.max_successive_merges: 0
+2021/03/14-07:50:38.095784 7fb6805c7a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:50:38.095784 7fb6805c7a80 Options.paranoid_file_checks: 0
+2021/03/14-07:50:38.095785 7fb6805c7a80 Options.force_consistency_checks: 0
+2021/03/14-07:50:38.095786 7fb6805c7a80 Options.report_bg_io_stats: 0
+2021/03/14-07:50:38.096250 7fb6805c7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:50:38.096253 7fb6805c7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:50:38.096432 7fb6805c7a80 EVENT_LOG_v1 {"time_micros": 1615704638096420, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:50:38.096439 7fb6805c7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:50:38.826860 7fb6805c7a80 EVENT_LOG_v1 {"time_micros": 1615704638826856, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704639578987 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704639578987
new file mode 100644
index 0000000..31743cc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704639578987
@@ -0,0 +1,186 @@
+2021/03/14-07:50:38.839766 7fb6805c7a80 RocksDB version: 5.11.3
+2021/03/14-07:50:38.839822 7fb6805c7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:50:38.839823 7fb6805c7a80 Compile date Mar 13 2021
+2021/03/14-07:50:38.839828 7fb6805c7a80 DB SUMMARY
+2021/03/14-07:50:38.839992 7fb6805c7a80 CURRENT file: CURRENT
+2021/03/14-07:50:38.839993 7fb6805c7a80 IDENTITY file: IDENTITY
+2021/03/14-07:50:38.840009 7fb6805c7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:50:38.840010 7fb6805c7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:50:38.840011 7fb6805c7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:50:38.840016 7fb6805c7a80 Options.error_if_exists: 0
+2021/03/14-07:50:38.840017 7fb6805c7a80 Options.create_if_missing: 1
+2021/03/14-07:50:38.840018 7fb6805c7a80 Options.paranoid_checks: 1
+2021/03/14-07:50:38.840018 7fb6805c7a80 Options.env: 0x7fb680f81080
+2021/03/14-07:50:38.840019 7fb6805c7a80 Options.info_log: 0x2014ca0
+2021/03/14-07:50:38.840020 7fb6805c7a80 Options.max_file_opening_threads: 16
+2021/03/14-07:50:38.840020 7fb6805c7a80 Options.statistics: (nil)
+2021/03/14-07:50:38.840021 7fb6805c7a80 Options.use_fsync: 0
+2021/03/14-07:50:38.840021 7fb6805c7a80 Options.max_log_file_size: 0
+2021/03/14-07:50:38.840022 7fb6805c7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:50:38.840023 7fb6805c7a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:50:38.840023 7fb6805c7a80 Options.keep_log_file_num: 1000
+2021/03/14-07:50:38.840024 7fb6805c7a80 Options.recycle_log_file_num: 0
+2021/03/14-07:50:38.840025 7fb6805c7a80 Options.allow_fallocate: 1
+2021/03/14-07:50:38.840025 7fb6805c7a80 Options.allow_mmap_reads: 0
+2021/03/14-07:50:38.840026 7fb6805c7a80 Options.allow_mmap_writes: 0
+2021/03/14-07:50:38.840026 7fb6805c7a80 Options.use_direct_reads: 0
+2021/03/14-07:50:38.840027 7fb6805c7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:50:38.840027 7fb6805c7a80 Options.create_missing_column_families: 0
+2021/03/14-07:50:38.840028 7fb6805c7a80 Options.db_log_dir:
+2021/03/14-07:50:38.840028 7fb6805c7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:50:38.840029 7fb6805c7a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:50:38.840030 7fb6805c7a80 Options.max_subcompactions: 1
+2021/03/14-07:50:38.840030 7fb6805c7a80 Options.max_background_flushes: -1
+2021/03/14-07:50:38.840031 7fb6805c7a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:50:38.840031 7fb6805c7a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:50:38.840032 7fb6805c7a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:50:38.840032 7fb6805c7a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:50:38.840033 7fb6805c7a80 Options.advise_random_on_open: 1
+2021/03/14-07:50:38.840034 7fb6805c7a80 Options.db_write_buffer_size: 0
+2021/03/14-07:50:38.840034 7fb6805c7a80 Options.write_buffer_manager: 0x1ffcb90
+2021/03/14-07:50:38.840035 7fb6805c7a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:50:38.840035 7fb6805c7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:50:38.840036 7fb6805c7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:50:38.840036 7fb6805c7a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:50:38.840037 7fb6805c7a80 Options.rate_limiter: (nil)
+2021/03/14-07:50:38.840038 7fb6805c7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:50:38.840046 7fb6805c7a80 Options.wal_recovery_mode: 2
+2021/03/14-07:50:38.840046 7fb6805c7a80 Options.enable_thread_tracking: 0
+2021/03/14-07:50:38.840047 7fb6805c7a80 Options.enable_pipelined_write: 0
+2021/03/14-07:50:38.840048 7fb6805c7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:50:38.840048 7fb6805c7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:50:38.840049 7fb6805c7a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:50:38.840049 7fb6805c7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:50:38.840050 7fb6805c7a80 Options.row_cache: None
+2021/03/14-07:50:38.840050 7fb6805c7a80 Options.wal_filter: None
+2021/03/14-07:50:38.840051 7fb6805c7a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:50:38.840051 7fb6805c7a80 Options.allow_ingest_behind: 0
+2021/03/14-07:50:38.840052 7fb6805c7a80 Options.preserve_deletes: 0
+2021/03/14-07:50:38.840053 7fb6805c7a80 Options.two_write_queues: 0
+2021/03/14-07:50:38.840053 7fb6805c7a80 Options.manual_wal_flush: 0
+2021/03/14-07:50:38.840054 7fb6805c7a80 Options.max_background_jobs: 16
+2021/03/14-07:50:38.840055 7fb6805c7a80 Options.max_background_compactions: -1
+2021/03/14-07:50:38.840056 7fb6805c7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:50:38.840056 7fb6805c7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:50:38.840057 7fb6805c7a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:50:38.840057 7fb6805c7a80 Options.max_total_wal_size: 0
+2021/03/14-07:50:38.840058 7fb6805c7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:50:38.840058 7fb6805c7a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:50:38.840059 7fb6805c7a80 Options.max_open_files: -1
+2021/03/14-07:50:38.840060 7fb6805c7a80 Options.bytes_per_sync: 0
+2021/03/14-07:50:38.840060 7fb6805c7a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:50:38.840061 7fb6805c7a80 Options.compaction_readahead_size: 0
+2021/03/14-07:50:38.840061 7fb6805c7a80 Compression algorithms supported:
+2021/03/14-07:50:38.840062 7fb6805c7a80 Snappy supported: 1
+2021/03/14-07:50:38.840062 7fb6805c7a80 Zlib supported: 1
+2021/03/14-07:50:38.840063 7fb6805c7a80 Bzip supported: 1
+2021/03/14-07:50:38.840064 7fb6805c7a80 LZ4 supported: 1
+2021/03/14-07:50:38.840064 7fb6805c7a80 ZSTDNotFinal supported: 1
+2021/03/14-07:50:38.840068 7fb6805c7a80 ZSTD supported: 1
+2021/03/14-07:50:38.840071 7fb6805c7a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:50:38.840073 7fb6805c7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:50:38.840168 7fb6805c7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:50:38.840218 7fb6805c7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:50:38.840220 7fb6805c7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:50:38.840221 7fb6805c7a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:50:38.840222 7fb6805c7a80 Options.compaction_filter: None
+2021/03/14-07:50:38.840222 7fb6805c7a80 Options.compaction_filter_factory: None
+2021/03/14-07:50:38.840223 7fb6805c7a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:50:38.840224 7fb6805c7a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:50:38.840236 7fb6805c7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x200c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1ff1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:50:38.840237 7fb6805c7a80 Options.write_buffer_size: 134217728
+2021/03/14-07:50:38.840243 7fb6805c7a80 Options.max_write_buffer_number: 6
+2021/03/14-07:50:38.840244 7fb6805c7a80 Options.compression[0]: NoCompression
+2021/03/14-07:50:38.840245 7fb6805c7a80 Options.compression[1]: NoCompression
+2021/03/14-07:50:38.840246 7fb6805c7a80 Options.compression[2]: Snappy
+2021/03/14-07:50:38.840246 7fb6805c7a80 Options.compression[3]: Snappy
+2021/03/14-07:50:38.840247 7fb6805c7a80 Options.compression[4]: Snappy
+2021/03/14-07:50:38.840247 7fb6805c7a80 Options.compression[5]: Snappy
+2021/03/14-07:50:38.840248 7fb6805c7a80 Options.compression[6]: Snappy
+2021/03/14-07:50:38.840248 7fb6805c7a80 Options.bottommost_compression: Disabled
+2021/03/14-07:50:38.840249 7fb6805c7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:50:38.840250 7fb6805c7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:50:38.840250 7fb6805c7a80 Options.num_levels: 7
+2021/03/14-07:50:38.840251 7fb6805c7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:50:38.840252 7fb6805c7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:50:38.840252 7fb6805c7a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:50:38.840253 7fb6805c7a80 Options.compression_opts.level: -1
+2021/03/14-07:50:38.840253 7fb6805c7a80 Options.compression_opts.strategy: 0
+2021/03/14-07:50:38.840254 7fb6805c7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:50:38.840254 7fb6805c7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:50:38.840255 7fb6805c7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:50:38.840255 7fb6805c7a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:50:38.840256 7fb6805c7a80 Options.target_file_size_base: 67108864
+2021/03/14-07:50:38.840257 7fb6805c7a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:50:38.840257 7fb6805c7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:50:38.840258 7fb6805c7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:50:38.840258 7fb6805c7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:50:38.840260 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:50:38.840269 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:50:38.840270 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:50:38.840270 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:50:38.840271 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:50:38.840271 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:50:38.840272 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:50:38.840272 7fb6805c7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:50:38.840273 7fb6805c7a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:50:38.840274 7fb6805c7a80 Options.arena_block_size: 16777216
+2021/03/14-07:50:38.840274 7fb6805c7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:50:38.840275 7fb6805c7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:50:38.840275 7fb6805c7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:50:38.840276 7fb6805c7a80 Options.disable_auto_compactions: 0
+2021/03/14-07:50:38.840278 7fb6805c7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:50:38.840279 7fb6805c7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:50:38.840279 7fb6805c7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:50:38.840280 7fb6805c7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:50:38.840280 7fb6805c7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:50:38.840281 7fb6805c7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:50:38.840282 7fb6805c7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:50:38.840283 7fb6805c7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:50:38.840283 7fb6805c7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:50:38.840284 7fb6805c7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:50:38.840284 7fb6805c7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:50:38.840285 7fb6805c7a80 Options.table_properties_collectors:
+2021/03/14-07:50:38.840286 7fb6805c7a80 Options.inplace_update_support: 0
+2021/03/14-07:50:38.840286 7fb6805c7a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:50:38.840287 7fb6805c7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:50:38.840288 7fb6805c7a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:50:38.840288 7fb6805c7a80 Options.bloom_locality: 0
+2021/03/14-07:50:38.840289 7fb6805c7a80 Options.max_successive_merges: 0
+2021/03/14-07:50:38.840289 7fb6805c7a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:50:38.840290 7fb6805c7a80 Options.paranoid_file_checks: 0
+2021/03/14-07:50:38.840290 7fb6805c7a80 Options.force_consistency_checks: 0
+2021/03/14-07:50:38.840291 7fb6805c7a80 Options.report_bg_io_stats: 0
+2021/03/14-07:50:38.840696 7fb6805c7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:50:38.840698 7fb6805c7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:50:38.840865 7fb6805c7a80 EVENT_LOG_v1 {"time_micros": 1615704638840855, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:50:38.840870 7fb6805c7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:50:39.566489 7fb6805c7a80 EVENT_LOG_v1 {"time_micros": 1615704639566485, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704640316199 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704640316199
new file mode 100644
index 0000000..0a83eee
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704640316199
@@ -0,0 +1,186 @@
+2021/03/14-07:50:39.579426 7fb6805c7a80 RocksDB version: 5.11.3
+2021/03/14-07:50:39.579481 7fb6805c7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:50:39.579482 7fb6805c7a80 Compile date Mar 13 2021
+2021/03/14-07:50:39.579487 7fb6805c7a80 DB SUMMARY
+2021/03/14-07:50:39.579650 7fb6805c7a80 CURRENT file: CURRENT
+2021/03/14-07:50:39.579651 7fb6805c7a80 IDENTITY file: IDENTITY
+2021/03/14-07:50:39.579667 7fb6805c7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:50:39.579668 7fb6805c7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:50:39.579669 7fb6805c7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:50:39.579675 7fb6805c7a80 Options.error_if_exists: 0
+2021/03/14-07:50:39.579676 7fb6805c7a80 Options.create_if_missing: 1
+2021/03/14-07:50:39.579676 7fb6805c7a80 Options.paranoid_checks: 1
+2021/03/14-07:50:39.579677 7fb6805c7a80 Options.env: 0x7fb680f81080
+2021/03/14-07:50:39.579677 7fb6805c7a80 Options.info_log: 0x2014ca0
+2021/03/14-07:50:39.579678 7fb6805c7a80 Options.max_file_opening_threads: 16
+2021/03/14-07:50:39.579679 7fb6805c7a80 Options.statistics: (nil)
+2021/03/14-07:50:39.579679 7fb6805c7a80 Options.use_fsync: 0
+2021/03/14-07:50:39.579680 7fb6805c7a80 Options.max_log_file_size: 0
+2021/03/14-07:50:39.579680 7fb6805c7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:50:39.579681 7fb6805c7a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:50:39.579682 7fb6805c7a80 Options.keep_log_file_num: 1000
+2021/03/14-07:50:39.579682 7fb6805c7a80 Options.recycle_log_file_num: 0
+2021/03/14-07:50:39.579683 7fb6805c7a80 Options.allow_fallocate: 1
+2021/03/14-07:50:39.579683 7fb6805c7a80 Options.allow_mmap_reads: 0
+2021/03/14-07:50:39.579684 7fb6805c7a80 Options.allow_mmap_writes: 0
+2021/03/14-07:50:39.579684 7fb6805c7a80 Options.use_direct_reads: 0
+2021/03/14-07:50:39.579685 7fb6805c7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:50:39.579685 7fb6805c7a80 Options.create_missing_column_families: 0
+2021/03/14-07:50:39.579686 7fb6805c7a80 Options.db_log_dir:
+2021/03/14-07:50:39.579687 7fb6805c7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:50:39.579687 7fb6805c7a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:50:39.579688 7fb6805c7a80 Options.max_subcompactions: 1
+2021/03/14-07:50:39.579688 7fb6805c7a80 Options.max_background_flushes: -1
+2021/03/14-07:50:39.579689 7fb6805c7a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:50:39.579690 7fb6805c7a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:50:39.579690 7fb6805c7a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:50:39.579691 7fb6805c7a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:50:39.579691 7fb6805c7a80 Options.advise_random_on_open: 1
+2021/03/14-07:50:39.579692 7fb6805c7a80 Options.db_write_buffer_size: 0
+2021/03/14-07:50:39.579692 7fb6805c7a80 Options.write_buffer_manager: 0x1ffcb90
+2021/03/14-07:50:39.579693 7fb6805c7a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:50:39.579694 7fb6805c7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:50:39.579694 7fb6805c7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:50:39.579695 7fb6805c7a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:50:39.579695 7fb6805c7a80 Options.rate_limiter: (nil)
+2021/03/14-07:50:39.579697 7fb6805c7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:50:39.579704 7fb6805c7a80 Options.wal_recovery_mode: 2
+2021/03/14-07:50:39.579705 7fb6805c7a80 Options.enable_thread_tracking: 0
+2021/03/14-07:50:39.579706 7fb6805c7a80 Options.enable_pipelined_write: 0
+2021/03/14-07:50:39.579706 7fb6805c7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:50:39.579707 7fb6805c7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:50:39.579707 7fb6805c7a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:50:39.579708 7fb6805c7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:50:39.579708 7fb6805c7a80 Options.row_cache: None
+2021/03/14-07:50:39.579709 7fb6805c7a80 Options.wal_filter: None
+2021/03/14-07:50:39.579710 7fb6805c7a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:50:39.579710 7fb6805c7a80 Options.allow_ingest_behind: 0
+2021/03/14-07:50:39.579711 7fb6805c7a80 Options.preserve_deletes: 0
+2021/03/14-07:50:39.579711 7fb6805c7a80 Options.two_write_queues: 0
+2021/03/14-07:50:39.579712 7fb6805c7a80 Options.manual_wal_flush: 0
+2021/03/14-07:50:39.579713 7fb6805c7a80 Options.max_background_jobs: 16
+2021/03/14-07:50:39.579713 7fb6805c7a80 Options.max_background_compactions: -1
+2021/03/14-07:50:39.579714 7fb6805c7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:50:39.579714 7fb6805c7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:50:39.579715 7fb6805c7a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:50:39.579716 7fb6805c7a80 Options.max_total_wal_size: 0
+2021/03/14-07:50:39.579716 7fb6805c7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:50:39.579717 7fb6805c7a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:50:39.579717 7fb6805c7a80 Options.max_open_files: -1
+2021/03/14-07:50:39.579718 7fb6805c7a80 Options.bytes_per_sync: 0
+2021/03/14-07:50:39.579719 7fb6805c7a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:50:39.579719 7fb6805c7a80 Options.compaction_readahead_size: 0
+2021/03/14-07:50:39.579720 7fb6805c7a80 Compression algorithms supported:
+2021/03/14-07:50:39.579720 7fb6805c7a80 Snappy supported: 1
+2021/03/14-07:50:39.579721 7fb6805c7a80 Zlib supported: 1
+2021/03/14-07:50:39.579721 7fb6805c7a80 Bzip supported: 1
+2021/03/14-07:50:39.579722 7fb6805c7a80 LZ4 supported: 1
+2021/03/14-07:50:39.579722 7fb6805c7a80 ZSTDNotFinal supported: 1
+2021/03/14-07:50:39.579726 7fb6805c7a80 ZSTD supported: 1
+2021/03/14-07:50:39.579729 7fb6805c7a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:50:39.579731 7fb6805c7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:50:39.579822 7fb6805c7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:50:39.579873 7fb6805c7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:50:39.579874 7fb6805c7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:50:39.579875 7fb6805c7a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:50:39.579876 7fb6805c7a80 Options.compaction_filter: None
+2021/03/14-07:50:39.579876 7fb6805c7a80 Options.compaction_filter_factory: None
+2021/03/14-07:50:39.579877 7fb6805c7a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:50:39.579878 7fb6805c7a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:50:39.579890 7fb6805c7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x200c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1ff1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:50:39.579891 7fb6805c7a80 Options.write_buffer_size: 134217728
+2021/03/14-07:50:39.579892 7fb6805c7a80 Options.max_write_buffer_number: 6
+2021/03/14-07:50:39.579892 7fb6805c7a80 Options.compression[0]: NoCompression
+2021/03/14-07:50:39.579893 7fb6805c7a80 Options.compression[1]: NoCompression
+2021/03/14-07:50:39.579894 7fb6805c7a80 Options.compression[2]: Snappy
+2021/03/14-07:50:39.579894 7fb6805c7a80 Options.compression[3]: Snappy
+2021/03/14-07:50:39.579895 7fb6805c7a80 Options.compression[4]: Snappy
+2021/03/14-07:50:39.579895 7fb6805c7a80 Options.compression[5]: Snappy
+2021/03/14-07:50:39.579896 7fb6805c7a80 Options.compression[6]: Snappy
+2021/03/14-07:50:39.579897 7fb6805c7a80 Options.bottommost_compression: Disabled
+2021/03/14-07:50:39.579897 7fb6805c7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:50:39.579898 7fb6805c7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:50:39.579898 7fb6805c7a80 Options.num_levels: 7
+2021/03/14-07:50:39.579899 7fb6805c7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:50:39.579899 7fb6805c7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:50:39.579900 7fb6805c7a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:50:39.579901 7fb6805c7a80 Options.compression_opts.level: -1
+2021/03/14-07:50:39.579901 7fb6805c7a80 Options.compression_opts.strategy: 0
+2021/03/14-07:50:39.579902 7fb6805c7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:50:39.579903 7fb6805c7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:50:39.579903 7fb6805c7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:50:39.579904 7fb6805c7a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:50:39.579904 7fb6805c7a80 Options.target_file_size_base: 67108864
+2021/03/14-07:50:39.579905 7fb6805c7a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:50:39.579906 7fb6805c7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:50:39.579906 7fb6805c7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:50:39.579907 7fb6805c7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:50:39.579908 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:50:39.579916 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:50:39.579916 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:50:39.579917 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:50:39.579918 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:50:39.579918 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:50:39.579919 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:50:39.579919 7fb6805c7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:50:39.579920 7fb6805c7a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:50:39.579920 7fb6805c7a80 Options.arena_block_size: 16777216
+2021/03/14-07:50:39.579921 7fb6805c7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:50:39.579921 7fb6805c7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:50:39.579922 7fb6805c7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:50:39.579923 7fb6805c7a80 Options.disable_auto_compactions: 0
+2021/03/14-07:50:39.579924 7fb6805c7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:50:39.579925 7fb6805c7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:50:39.579926 7fb6805c7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:50:39.579926 7fb6805c7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:50:39.579927 7fb6805c7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:50:39.579927 7fb6805c7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:50:39.579928 7fb6805c7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:50:39.579929 7fb6805c7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:50:39.579930 7fb6805c7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:50:39.579930 7fb6805c7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:50:39.579931 7fb6805c7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:50:39.579931 7fb6805c7a80 Options.table_properties_collectors:
+2021/03/14-07:50:39.579932 7fb6805c7a80 Options.inplace_update_support: 0
+2021/03/14-07:50:39.579932 7fb6805c7a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:50:39.579933 7fb6805c7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:50:39.579934 7fb6805c7a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:50:39.579934 7fb6805c7a80 Options.bloom_locality: 0
+2021/03/14-07:50:39.579935 7fb6805c7a80 Options.max_successive_merges: 0
+2021/03/14-07:50:39.579935 7fb6805c7a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:50:39.579936 7fb6805c7a80 Options.paranoid_file_checks: 0
+2021/03/14-07:50:39.579937 7fb6805c7a80 Options.force_consistency_checks: 0
+2021/03/14-07:50:39.579937 7fb6805c7a80 Options.report_bg_io_stats: 0
+2021/03/14-07:50:39.580322 7fb6805c7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:50:39.580324 7fb6805c7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:50:39.580485 7fb6805c7a80 EVENT_LOG_v1 {"time_micros": 1615704639580475, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:50:39.580490 7fb6805c7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:50:40.303661 7fb6805c7a80 EVENT_LOG_v1 {"time_micros": 1615704640303657, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704755433635 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704755433635
new file mode 100644
index 0000000..795fa76
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704755433635
@@ -0,0 +1,186 @@
+2021/03/14-07:50:40.316634 7fb6805c7a80 RocksDB version: 5.11.3
+2021/03/14-07:50:40.316686 7fb6805c7a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:50:40.316688 7fb6805c7a80 Compile date Mar 13 2021
+2021/03/14-07:50:40.316692 7fb6805c7a80 DB SUMMARY
+2021/03/14-07:50:40.316857 7fb6805c7a80 CURRENT file: CURRENT
+2021/03/14-07:50:40.316858 7fb6805c7a80 IDENTITY file: IDENTITY
+2021/03/14-07:50:40.316873 7fb6805c7a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:50:40.316875 7fb6805c7a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:50:40.316875 7fb6805c7a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:50:40.316881 7fb6805c7a80 Options.error_if_exists: 0
+2021/03/14-07:50:40.316882 7fb6805c7a80 Options.create_if_missing: 1
+2021/03/14-07:50:40.316882 7fb6805c7a80 Options.paranoid_checks: 1
+2021/03/14-07:50:40.316883 7fb6805c7a80 Options.env: 0x7fb680f81080
+2021/03/14-07:50:40.316884 7fb6805c7a80 Options.info_log: 0x2014ca0
+2021/03/14-07:50:40.316884 7fb6805c7a80 Options.max_file_opening_threads: 16
+2021/03/14-07:50:40.316885 7fb6805c7a80 Options.statistics: (nil)
+2021/03/14-07:50:40.316886 7fb6805c7a80 Options.use_fsync: 0
+2021/03/14-07:50:40.316886 7fb6805c7a80 Options.max_log_file_size: 0
+2021/03/14-07:50:40.316887 7fb6805c7a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:50:40.316887 7fb6805c7a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:50:40.316888 7fb6805c7a80 Options.keep_log_file_num: 1000
+2021/03/14-07:50:40.316889 7fb6805c7a80 Options.recycle_log_file_num: 0
+2021/03/14-07:50:40.316889 7fb6805c7a80 Options.allow_fallocate: 1
+2021/03/14-07:50:40.316890 7fb6805c7a80 Options.allow_mmap_reads: 0
+2021/03/14-07:50:40.316890 7fb6805c7a80 Options.allow_mmap_writes: 0
+2021/03/14-07:50:40.316891 7fb6805c7a80 Options.use_direct_reads: 0
+2021/03/14-07:50:40.316891 7fb6805c7a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:50:40.316892 7fb6805c7a80 Options.create_missing_column_families: 0
+2021/03/14-07:50:40.316892 7fb6805c7a80 Options.db_log_dir:
+2021/03/14-07:50:40.316893 7fb6805c7a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:50:40.316894 7fb6805c7a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:50:40.316894 7fb6805c7a80 Options.max_subcompactions: 1
+2021/03/14-07:50:40.316895 7fb6805c7a80 Options.max_background_flushes: -1
+2021/03/14-07:50:40.316895 7fb6805c7a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:50:40.316896 7fb6805c7a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:50:40.316896 7fb6805c7a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:50:40.316897 7fb6805c7a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:50:40.316898 7fb6805c7a80 Options.advise_random_on_open: 1
+2021/03/14-07:50:40.316898 7fb6805c7a80 Options.db_write_buffer_size: 0
+2021/03/14-07:50:40.316899 7fb6805c7a80 Options.write_buffer_manager: 0x1ffcb90
+2021/03/14-07:50:40.316899 7fb6805c7a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:50:40.316900 7fb6805c7a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:50:40.316900 7fb6805c7a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:50:40.316901 7fb6805c7a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:50:40.316901 7fb6805c7a80 Options.rate_limiter: (nil)
+2021/03/14-07:50:40.316903 7fb6805c7a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:50:40.316911 7fb6805c7a80 Options.wal_recovery_mode: 2
+2021/03/14-07:50:40.316911 7fb6805c7a80 Options.enable_thread_tracking: 0
+2021/03/14-07:50:40.316912 7fb6805c7a80 Options.enable_pipelined_write: 0
+2021/03/14-07:50:40.316913 7fb6805c7a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:50:40.316913 7fb6805c7a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:50:40.316914 7fb6805c7a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:50:40.316914 7fb6805c7a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:50:40.316915 7fb6805c7a80 Options.row_cache: None
+2021/03/14-07:50:40.316915 7fb6805c7a80 Options.wal_filter: None
+2021/03/14-07:50:40.316916 7fb6805c7a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:50:40.316917 7fb6805c7a80 Options.allow_ingest_behind: 0
+2021/03/14-07:50:40.316917 7fb6805c7a80 Options.preserve_deletes: 0
+2021/03/14-07:50:40.316918 7fb6805c7a80 Options.two_write_queues: 0
+2021/03/14-07:50:40.316918 7fb6805c7a80 Options.manual_wal_flush: 0
+2021/03/14-07:50:40.316919 7fb6805c7a80 Options.max_background_jobs: 16
+2021/03/14-07:50:40.316920 7fb6805c7a80 Options.max_background_compactions: -1
+2021/03/14-07:50:40.316920 7fb6805c7a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:50:40.316921 7fb6805c7a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:50:40.316922 7fb6805c7a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:50:40.316922 7fb6805c7a80 Options.max_total_wal_size: 0
+2021/03/14-07:50:40.316923 7fb6805c7a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:50:40.316923 7fb6805c7a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:50:40.316924 7fb6805c7a80 Options.max_open_files: -1
+2021/03/14-07:50:40.316924 7fb6805c7a80 Options.bytes_per_sync: 0
+2021/03/14-07:50:40.316925 7fb6805c7a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:50:40.316926 7fb6805c7a80 Options.compaction_readahead_size: 0
+2021/03/14-07:50:40.316926 7fb6805c7a80 Compression algorithms supported:
+2021/03/14-07:50:40.316927 7fb6805c7a80 Snappy supported: 1
+2021/03/14-07:50:40.316927 7fb6805c7a80 Zlib supported: 1
+2021/03/14-07:50:40.316928 7fb6805c7a80 Bzip supported: 1
+2021/03/14-07:50:40.316928 7fb6805c7a80 LZ4 supported: 1
+2021/03/14-07:50:40.316929 7fb6805c7a80 ZSTDNotFinal supported: 1
+2021/03/14-07:50:40.316933 7fb6805c7a80 ZSTD supported: 1
+2021/03/14-07:50:40.316936 7fb6805c7a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:50:40.316937 7fb6805c7a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:50:40.317027 7fb6805c7a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:50:40.317077 7fb6805c7a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:50:40.317078 7fb6805c7a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:50:40.317079 7fb6805c7a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:50:40.317080 7fb6805c7a80 Options.compaction_filter: None
+2021/03/14-07:50:40.317080 7fb6805c7a80 Options.compaction_filter_factory: None
+2021/03/14-07:50:40.317081 7fb6805c7a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:50:40.317082 7fb6805c7a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:50:40.317095 7fb6805c7a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x200c520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1ff1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:50:40.317096 7fb6805c7a80 Options.write_buffer_size: 134217728
+2021/03/14-07:50:40.317096 7fb6805c7a80 Options.max_write_buffer_number: 6
+2021/03/14-07:50:40.317097 7fb6805c7a80 Options.compression[0]: NoCompression
+2021/03/14-07:50:40.317097 7fb6805c7a80 Options.compression[1]: NoCompression
+2021/03/14-07:50:40.317098 7fb6805c7a80 Options.compression[2]: Snappy
+2021/03/14-07:50:40.317099 7fb6805c7a80 Options.compression[3]: Snappy
+2021/03/14-07:50:40.317099 7fb6805c7a80 Options.compression[4]: Snappy
+2021/03/14-07:50:40.317100 7fb6805c7a80 Options.compression[5]: Snappy
+2021/03/14-07:50:40.317100 7fb6805c7a80 Options.compression[6]: Snappy
+2021/03/14-07:50:40.317101 7fb6805c7a80 Options.bottommost_compression: Disabled
+2021/03/14-07:50:40.317102 7fb6805c7a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:50:40.317102 7fb6805c7a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:50:40.317103 7fb6805c7a80 Options.num_levels: 7
+2021/03/14-07:50:40.317103 7fb6805c7a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:50:40.317104 7fb6805c7a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:50:40.317105 7fb6805c7a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:50:40.317105 7fb6805c7a80 Options.compression_opts.level: -1
+2021/03/14-07:50:40.317106 7fb6805c7a80 Options.compression_opts.strategy: 0
+2021/03/14-07:50:40.317106 7fb6805c7a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:50:40.317107 7fb6805c7a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:50:40.317107 7fb6805c7a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:50:40.317108 7fb6805c7a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:50:40.317108 7fb6805c7a80 Options.target_file_size_base: 67108864
+2021/03/14-07:50:40.317109 7fb6805c7a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:50:40.317110 7fb6805c7a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:50:40.317110 7fb6805c7a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:50:40.317111 7fb6805c7a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:50:40.317112 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:50:40.317120 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:50:40.317121 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:50:40.317122 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:50:40.317122 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:50:40.317123 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:50:40.317123 7fb6805c7a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:50:40.317124 7fb6805c7a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:50:40.317124 7fb6805c7a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:50:40.317125 7fb6805c7a80 Options.arena_block_size: 16777216
+2021/03/14-07:50:40.317126 7fb6805c7a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:50:40.317126 7fb6805c7a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:50:40.317127 7fb6805c7a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:50:40.317127 7fb6805c7a80 Options.disable_auto_compactions: 0
+2021/03/14-07:50:40.317129 7fb6805c7a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:50:40.317130 7fb6805c7a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:50:40.317130 7fb6805c7a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:50:40.317131 7fb6805c7a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:50:40.317131 7fb6805c7a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:50:40.317132 7fb6805c7a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:50:40.317133 7fb6805c7a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:50:40.317134 7fb6805c7a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:50:40.317134 7fb6805c7a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:50:40.317135 7fb6805c7a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:50:40.317135 7fb6805c7a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:50:40.317136 7fb6805c7a80 Options.table_properties_collectors:
+2021/03/14-07:50:40.317137 7fb6805c7a80 Options.inplace_update_support: 0
+2021/03/14-07:50:40.317137 7fb6805c7a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:50:40.317138 7fb6805c7a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:50:40.317138 7fb6805c7a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:50:40.317139 7fb6805c7a80 Options.bloom_locality: 0
+2021/03/14-07:50:40.317140 7fb6805c7a80 Options.max_successive_merges: 0
+2021/03/14-07:50:40.317140 7fb6805c7a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:50:40.317141 7fb6805c7a80 Options.paranoid_file_checks: 0
+2021/03/14-07:50:40.317141 7fb6805c7a80 Options.force_consistency_checks: 0
+2021/03/14-07:50:40.317142 7fb6805c7a80 Options.report_bg_io_stats: 0
+2021/03/14-07:50:40.317518 7fb6805c7a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:50:40.317521 7fb6805c7a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:50:40.317684 7fb6805c7a80 EVENT_LOG_v1 {"time_micros": 1615704640317674, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:50:40.317689 7fb6805c7a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:50:41.039639 7fb6805c7a80 EVENT_LOG_v1 {"time_micros": 1615704641039636, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704756172960 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704756172960
new file mode 100644
index 0000000..508b8bf
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704756172960
@@ -0,0 +1,186 @@
+2021/03/14-07:52:35.434150 7fcf0923ea80 RocksDB version: 5.11.3
+2021/03/14-07:52:35.434218 7fcf0923ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:52:35.434219 7fcf0923ea80 Compile date Mar 13 2021
+2021/03/14-07:52:35.434222 7fcf0923ea80 DB SUMMARY
+2021/03/14-07:52:35.434414 7fcf0923ea80 CURRENT file: CURRENT
+2021/03/14-07:52:35.434415 7fcf0923ea80 IDENTITY file: IDENTITY
+2021/03/14-07:52:35.434432 7fcf0923ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:52:35.434434 7fcf0923ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:52:35.434435 7fcf0923ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:52:35.434441 7fcf0923ea80 Options.error_if_exists: 0
+2021/03/14-07:52:35.434442 7fcf0923ea80 Options.create_if_missing: 1
+2021/03/14-07:52:35.434442 7fcf0923ea80 Options.paranoid_checks: 1
+2021/03/14-07:52:35.434443 7fcf0923ea80 Options.env: 0x7fcf09bf8080
+2021/03/14-07:52:35.434444 7fcf0923ea80 Options.info_log: 0x28deca0
+2021/03/14-07:52:35.434444 7fcf0923ea80 Options.max_file_opening_threads: 16
+2021/03/14-07:52:35.434445 7fcf0923ea80 Options.statistics: (nil)
+2021/03/14-07:52:35.434446 7fcf0923ea80 Options.use_fsync: 0
+2021/03/14-07:52:35.434446 7fcf0923ea80 Options.max_log_file_size: 0
+2021/03/14-07:52:35.434447 7fcf0923ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:52:35.434448 7fcf0923ea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:52:35.434448 7fcf0923ea80 Options.keep_log_file_num: 1000
+2021/03/14-07:52:35.434449 7fcf0923ea80 Options.recycle_log_file_num: 0
+2021/03/14-07:52:35.434449 7fcf0923ea80 Options.allow_fallocate: 1
+2021/03/14-07:52:35.434450 7fcf0923ea80 Options.allow_mmap_reads: 0
+2021/03/14-07:52:35.434451 7fcf0923ea80 Options.allow_mmap_writes: 0
+2021/03/14-07:52:35.434451 7fcf0923ea80 Options.use_direct_reads: 0
+2021/03/14-07:52:35.434452 7fcf0923ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:52:35.434452 7fcf0923ea80 Options.create_missing_column_families: 0
+2021/03/14-07:52:35.434453 7fcf0923ea80 Options.db_log_dir:
+2021/03/14-07:52:35.434454 7fcf0923ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:52:35.434454 7fcf0923ea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:52:35.434455 7fcf0923ea80 Options.max_subcompactions: 1
+2021/03/14-07:52:35.434456 7fcf0923ea80 Options.max_background_flushes: -1
+2021/03/14-07:52:35.434456 7fcf0923ea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:52:35.434457 7fcf0923ea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:52:35.434457 7fcf0923ea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:52:35.434458 7fcf0923ea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:52:35.434459 7fcf0923ea80 Options.advise_random_on_open: 1
+2021/03/14-07:52:35.434459 7fcf0923ea80 Options.db_write_buffer_size: 0
+2021/03/14-07:52:35.434460 7fcf0923ea80 Options.write_buffer_manager: 0x28c6b90
+2021/03/14-07:52:35.434460 7fcf0923ea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:52:35.434461 7fcf0923ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:52:35.434462 7fcf0923ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:52:35.434462 7fcf0923ea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:52:35.434463 7fcf0923ea80 Options.rate_limiter: (nil)
+2021/03/14-07:52:35.434464 7fcf0923ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:52:35.434473 7fcf0923ea80 Options.wal_recovery_mode: 2
+2021/03/14-07:52:35.434474 7fcf0923ea80 Options.enable_thread_tracking: 0
+2021/03/14-07:52:35.434475 7fcf0923ea80 Options.enable_pipelined_write: 0
+2021/03/14-07:52:35.434475 7fcf0923ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:52:35.434476 7fcf0923ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:52:35.434477 7fcf0923ea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:52:35.434477 7fcf0923ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:52:35.434478 7fcf0923ea80 Options.row_cache: None
+2021/03/14-07:52:35.434479 7fcf0923ea80 Options.wal_filter: None
+2021/03/14-07:52:35.434479 7fcf0923ea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:52:35.434480 7fcf0923ea80 Options.allow_ingest_behind: 0
+2021/03/14-07:52:35.434480 7fcf0923ea80 Options.preserve_deletes: 0
+2021/03/14-07:52:35.434481 7fcf0923ea80 Options.two_write_queues: 0
+2021/03/14-07:52:35.434482 7fcf0923ea80 Options.manual_wal_flush: 0
+2021/03/14-07:52:35.434483 7fcf0923ea80 Options.max_background_jobs: 16
+2021/03/14-07:52:35.434483 7fcf0923ea80 Options.max_background_compactions: -1
+2021/03/14-07:52:35.434484 7fcf0923ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:52:35.434485 7fcf0923ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:52:35.434485 7fcf0923ea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:52:35.434486 7fcf0923ea80 Options.max_total_wal_size: 0
+2021/03/14-07:52:35.434487 7fcf0923ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:52:35.434487 7fcf0923ea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:52:35.434488 7fcf0923ea80 Options.max_open_files: -1
+2021/03/14-07:52:35.434489 7fcf0923ea80 Options.bytes_per_sync: 0
+2021/03/14-07:52:35.434489 7fcf0923ea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:52:35.434490 7fcf0923ea80 Options.compaction_readahead_size: 0
+2021/03/14-07:52:35.434490 7fcf0923ea80 Compression algorithms supported:
+2021/03/14-07:52:35.434491 7fcf0923ea80 Snappy supported: 1
+2021/03/14-07:52:35.434492 7fcf0923ea80 Zlib supported: 1
+2021/03/14-07:52:35.434492 7fcf0923ea80 Bzip supported: 1
+2021/03/14-07:52:35.434493 7fcf0923ea80 LZ4 supported: 1
+2021/03/14-07:52:35.434493 7fcf0923ea80 ZSTDNotFinal supported: 1
+2021/03/14-07:52:35.434498 7fcf0923ea80 ZSTD supported: 1
+2021/03/14-07:52:35.434502 7fcf0923ea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:52:35.434503 7fcf0923ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:52:35.434673 7fcf0923ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:52:35.434738 7fcf0923ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:52:35.434739 7fcf0923ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:52:35.434740 7fcf0923ea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:52:35.434741 7fcf0923ea80 Options.compaction_filter: None
+2021/03/14-07:52:35.434742 7fcf0923ea80 Options.compaction_filter_factory: None
+2021/03/14-07:52:35.434742 7fcf0923ea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:52:35.434744 7fcf0923ea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:52:35.434757 7fcf0923ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x28d6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x28bbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:52:35.434758 7fcf0923ea80 Options.write_buffer_size: 134217728
+2021/03/14-07:52:35.434759 7fcf0923ea80 Options.max_write_buffer_number: 6
+2021/03/14-07:52:35.434760 7fcf0923ea80 Options.compression[0]: NoCompression
+2021/03/14-07:52:35.434761 7fcf0923ea80 Options.compression[1]: NoCompression
+2021/03/14-07:52:35.434761 7fcf0923ea80 Options.compression[2]: Snappy
+2021/03/14-07:52:35.434762 7fcf0923ea80 Options.compression[3]: Snappy
+2021/03/14-07:52:35.434763 7fcf0923ea80 Options.compression[4]: Snappy
+2021/03/14-07:52:35.434763 7fcf0923ea80 Options.compression[5]: Snappy
+2021/03/14-07:52:35.434764 7fcf0923ea80 Options.compression[6]: Snappy
+2021/03/14-07:52:35.434764 7fcf0923ea80 Options.bottommost_compression: Disabled
+2021/03/14-07:52:35.434765 7fcf0923ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:52:35.434766 7fcf0923ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:52:35.434767 7fcf0923ea80 Options.num_levels: 7
+2021/03/14-07:52:35.434767 7fcf0923ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:52:35.434768 7fcf0923ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:52:35.434768 7fcf0923ea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:52:35.434769 7fcf0923ea80 Options.compression_opts.level: -1
+2021/03/14-07:52:35.434770 7fcf0923ea80 Options.compression_opts.strategy: 0
+2021/03/14-07:52:35.434770 7fcf0923ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:52:35.434771 7fcf0923ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:52:35.434771 7fcf0923ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:52:35.434772 7fcf0923ea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:52:35.434773 7fcf0923ea80 Options.target_file_size_base: 67108864
+2021/03/14-07:52:35.434773 7fcf0923ea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:52:35.434774 7fcf0923ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:52:35.434775 7fcf0923ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:52:35.434775 7fcf0923ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:52:35.434777 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:52:35.434785 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:52:35.434786 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:52:35.434787 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:52:35.434787 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:52:35.434788 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:52:35.434789 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:52:35.434789 7fcf0923ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:52:35.434790 7fcf0923ea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:52:35.434790 7fcf0923ea80 Options.arena_block_size: 16777216
+2021/03/14-07:52:35.434791 7fcf0923ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:52:35.434792 7fcf0923ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:52:35.434792 7fcf0923ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:52:35.434793 7fcf0923ea80 Options.disable_auto_compactions: 0
+2021/03/14-07:52:35.434795 7fcf0923ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:52:35.434796 7fcf0923ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:52:35.434796 7fcf0923ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:52:35.434797 7fcf0923ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:52:35.434798 7fcf0923ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:52:35.434798 7fcf0923ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:52:35.434799 7fcf0923ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:52:35.434800 7fcf0923ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:52:35.434800 7fcf0923ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:52:35.434801 7fcf0923ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:52:35.434802 7fcf0923ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:52:35.434802 7fcf0923ea80 Options.table_properties_collectors:
+2021/03/14-07:52:35.434803 7fcf0923ea80 Options.inplace_update_support: 0
+2021/03/14-07:52:35.434804 7fcf0923ea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:52:35.434804 7fcf0923ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:52:35.434805 7fcf0923ea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:52:35.434806 7fcf0923ea80 Options.bloom_locality: 0
+2021/03/14-07:52:35.434806 7fcf0923ea80 Options.max_successive_merges: 0
+2021/03/14-07:52:35.434807 7fcf0923ea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:52:35.434807 7fcf0923ea80 Options.paranoid_file_checks: 0
+2021/03/14-07:52:35.434808 7fcf0923ea80 Options.force_consistency_checks: 0
+2021/03/14-07:52:35.434809 7fcf0923ea80 Options.report_bg_io_stats: 0
+2021/03/14-07:52:35.435280 7fcf0923ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:52:35.435283 7fcf0923ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:52:35.435482 7fcf0923ea80 EVENT_LOG_v1 {"time_micros": 1615704755435468, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:52:35.435489 7fcf0923ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:52:36.160549 7fcf0923ea80 EVENT_LOG_v1 {"time_micros": 1615704756160545, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704756899893 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704756899893
new file mode 100644
index 0000000..2575d70
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704756899893
@@ -0,0 +1,186 @@
+2021/03/14-07:52:36.173398 7fcf0923ea80 RocksDB version: 5.11.3
+2021/03/14-07:52:36.173454 7fcf0923ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:52:36.173455 7fcf0923ea80 Compile date Mar 13 2021
+2021/03/14-07:52:36.173458 7fcf0923ea80 DB SUMMARY
+2021/03/14-07:52:36.173623 7fcf0923ea80 CURRENT file: CURRENT
+2021/03/14-07:52:36.173624 7fcf0923ea80 IDENTITY file: IDENTITY
+2021/03/14-07:52:36.173640 7fcf0923ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:52:36.173641 7fcf0923ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:52:36.173642 7fcf0923ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:52:36.173648 7fcf0923ea80 Options.error_if_exists: 0
+2021/03/14-07:52:36.173648 7fcf0923ea80 Options.create_if_missing: 1
+2021/03/14-07:52:36.173649 7fcf0923ea80 Options.paranoid_checks: 1
+2021/03/14-07:52:36.173650 7fcf0923ea80 Options.env: 0x7fcf09bf8080
+2021/03/14-07:52:36.173650 7fcf0923ea80 Options.info_log: 0x28deca0
+2021/03/14-07:52:36.173651 7fcf0923ea80 Options.max_file_opening_threads: 16
+2021/03/14-07:52:36.173651 7fcf0923ea80 Options.statistics: (nil)
+2021/03/14-07:52:36.173652 7fcf0923ea80 Options.use_fsync: 0
+2021/03/14-07:52:36.173653 7fcf0923ea80 Options.max_log_file_size: 0
+2021/03/14-07:52:36.173653 7fcf0923ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:52:36.173654 7fcf0923ea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:52:36.173654 7fcf0923ea80 Options.keep_log_file_num: 1000
+2021/03/14-07:52:36.173655 7fcf0923ea80 Options.recycle_log_file_num: 0
+2021/03/14-07:52:36.173656 7fcf0923ea80 Options.allow_fallocate: 1
+2021/03/14-07:52:36.173656 7fcf0923ea80 Options.allow_mmap_reads: 0
+2021/03/14-07:52:36.173657 7fcf0923ea80 Options.allow_mmap_writes: 0
+2021/03/14-07:52:36.173657 7fcf0923ea80 Options.use_direct_reads: 0
+2021/03/14-07:52:36.173658 7fcf0923ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:52:36.173658 7fcf0923ea80 Options.create_missing_column_families: 0
+2021/03/14-07:52:36.173659 7fcf0923ea80 Options.db_log_dir:
+2021/03/14-07:52:36.173659 7fcf0923ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:52:36.173660 7fcf0923ea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:52:36.173661 7fcf0923ea80 Options.max_subcompactions: 1
+2021/03/14-07:52:36.173661 7fcf0923ea80 Options.max_background_flushes: -1
+2021/03/14-07:52:36.173662 7fcf0923ea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:52:36.173662 7fcf0923ea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:52:36.173663 7fcf0923ea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:52:36.173664 7fcf0923ea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:52:36.173664 7fcf0923ea80 Options.advise_random_on_open: 1
+2021/03/14-07:52:36.173665 7fcf0923ea80 Options.db_write_buffer_size: 0
+2021/03/14-07:52:36.173665 7fcf0923ea80 Options.write_buffer_manager: 0x28c6b90
+2021/03/14-07:52:36.173666 7fcf0923ea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:52:36.173666 7fcf0923ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:52:36.173667 7fcf0923ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:52:36.173667 7fcf0923ea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:52:36.173668 7fcf0923ea80 Options.rate_limiter: (nil)
+2021/03/14-07:52:36.173669 7fcf0923ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:52:36.173677 7fcf0923ea80 Options.wal_recovery_mode: 2
+2021/03/14-07:52:36.173678 7fcf0923ea80 Options.enable_thread_tracking: 0
+2021/03/14-07:52:36.173678 7fcf0923ea80 Options.enable_pipelined_write: 0
+2021/03/14-07:52:36.173679 7fcf0923ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:52:36.173679 7fcf0923ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:52:36.173680 7fcf0923ea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:52:36.173680 7fcf0923ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:52:36.173681 7fcf0923ea80 Options.row_cache: None
+2021/03/14-07:52:36.173682 7fcf0923ea80 Options.wal_filter: None
+2021/03/14-07:52:36.173682 7fcf0923ea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:52:36.173683 7fcf0923ea80 Options.allow_ingest_behind: 0
+2021/03/14-07:52:36.173683 7fcf0923ea80 Options.preserve_deletes: 0
+2021/03/14-07:52:36.173684 7fcf0923ea80 Options.two_write_queues: 0
+2021/03/14-07:52:36.173684 7fcf0923ea80 Options.manual_wal_flush: 0
+2021/03/14-07:52:36.173685 7fcf0923ea80 Options.max_background_jobs: 16
+2021/03/14-07:52:36.173686 7fcf0923ea80 Options.max_background_compactions: -1
+2021/03/14-07:52:36.173687 7fcf0923ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:52:36.173687 7fcf0923ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:52:36.173688 7fcf0923ea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:52:36.173688 7fcf0923ea80 Options.max_total_wal_size: 0
+2021/03/14-07:52:36.173689 7fcf0923ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:52:36.173689 7fcf0923ea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:52:36.173690 7fcf0923ea80 Options.max_open_files: -1
+2021/03/14-07:52:36.173691 7fcf0923ea80 Options.bytes_per_sync: 0
+2021/03/14-07:52:36.173691 7fcf0923ea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:52:36.173692 7fcf0923ea80 Options.compaction_readahead_size: 0
+2021/03/14-07:52:36.173692 7fcf0923ea80 Compression algorithms supported:
+2021/03/14-07:52:36.173693 7fcf0923ea80 Snappy supported: 1
+2021/03/14-07:52:36.173693 7fcf0923ea80 Zlib supported: 1
+2021/03/14-07:52:36.173694 7fcf0923ea80 Bzip supported: 1
+2021/03/14-07:52:36.173694 7fcf0923ea80 LZ4 supported: 1
+2021/03/14-07:52:36.173695 7fcf0923ea80 ZSTDNotFinal supported: 1
+2021/03/14-07:52:36.173699 7fcf0923ea80 ZSTD supported: 1
+2021/03/14-07:52:36.173702 7fcf0923ea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:52:36.173703 7fcf0923ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:52:36.173795 7fcf0923ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:52:36.173849 7fcf0923ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:52:36.173851 7fcf0923ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:52:36.173852 7fcf0923ea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:52:36.173853 7fcf0923ea80 Options.compaction_filter: None
+2021/03/14-07:52:36.173853 7fcf0923ea80 Options.compaction_filter_factory: None
+2021/03/14-07:52:36.173854 7fcf0923ea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:52:36.173855 7fcf0923ea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:52:36.173869 7fcf0923ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x28d6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x28bbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:52:36.173869 7fcf0923ea80 Options.write_buffer_size: 134217728
+2021/03/14-07:52:36.173870 7fcf0923ea80 Options.max_write_buffer_number: 6
+2021/03/14-07:52:36.173871 7fcf0923ea80 Options.compression[0]: NoCompression
+2021/03/14-07:52:36.173871 7fcf0923ea80 Options.compression[1]: NoCompression
+2021/03/14-07:52:36.173872 7fcf0923ea80 Options.compression[2]: Snappy
+2021/03/14-07:52:36.173873 7fcf0923ea80 Options.compression[3]: Snappy
+2021/03/14-07:52:36.173873 7fcf0923ea80 Options.compression[4]: Snappy
+2021/03/14-07:52:36.173874 7fcf0923ea80 Options.compression[5]: Snappy
+2021/03/14-07:52:36.173874 7fcf0923ea80 Options.compression[6]: Snappy
+2021/03/14-07:52:36.173875 7fcf0923ea80 Options.bottommost_compression: Disabled
+2021/03/14-07:52:36.173876 7fcf0923ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:52:36.173876 7fcf0923ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:52:36.173877 7fcf0923ea80 Options.num_levels: 7
+2021/03/14-07:52:36.173877 7fcf0923ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:52:36.173878 7fcf0923ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:52:36.173878 7fcf0923ea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:52:36.173879 7fcf0923ea80 Options.compression_opts.level: -1
+2021/03/14-07:52:36.173880 7fcf0923ea80 Options.compression_opts.strategy: 0
+2021/03/14-07:52:36.173880 7fcf0923ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:52:36.173881 7fcf0923ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:52:36.173881 7fcf0923ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:52:36.173882 7fcf0923ea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:52:36.173883 7fcf0923ea80 Options.target_file_size_base: 67108864
+2021/03/14-07:52:36.173883 7fcf0923ea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:52:36.173884 7fcf0923ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:52:36.173884 7fcf0923ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:52:36.173885 7fcf0923ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:52:36.173886 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:52:36.173894 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:52:36.173895 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:52:36.173895 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:52:36.173896 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:52:36.173897 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:52:36.173897 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:52:36.173898 7fcf0923ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:52:36.173898 7fcf0923ea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:52:36.173899 7fcf0923ea80 Options.arena_block_size: 16777216
+2021/03/14-07:52:36.173899 7fcf0923ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:52:36.173900 7fcf0923ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:52:36.173901 7fcf0923ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:52:36.173901 7fcf0923ea80 Options.disable_auto_compactions: 0
+2021/03/14-07:52:36.173903 7fcf0923ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:52:36.173903 7fcf0923ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:52:36.173904 7fcf0923ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:52:36.173905 7fcf0923ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:52:36.173905 7fcf0923ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:52:36.173906 7fcf0923ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:52:36.173906 7fcf0923ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:52:36.173907 7fcf0923ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:52:36.173908 7fcf0923ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:52:36.173908 7fcf0923ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:52:36.173909 7fcf0923ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:52:36.173909 7fcf0923ea80 Options.table_properties_collectors:
+2021/03/14-07:52:36.173910 7fcf0923ea80 Options.inplace_update_support: 0
+2021/03/14-07:52:36.173911 7fcf0923ea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:52:36.173911 7fcf0923ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:52:36.173912 7fcf0923ea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:52:36.173913 7fcf0923ea80 Options.bloom_locality: 0
+2021/03/14-07:52:36.173913 7fcf0923ea80 Options.max_successive_merges: 0
+2021/03/14-07:52:36.173914 7fcf0923ea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:52:36.173914 7fcf0923ea80 Options.paranoid_file_checks: 0
+2021/03/14-07:52:36.173915 7fcf0923ea80 Options.force_consistency_checks: 0
+2021/03/14-07:52:36.173915 7fcf0923ea80 Options.report_bg_io_stats: 0
+2021/03/14-07:52:36.174291 7fcf0923ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:52:36.174293 7fcf0923ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:52:36.174455 7fcf0923ea80 EVENT_LOG_v1 {"time_micros": 1615704756174445, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:52:36.174461 7fcf0923ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:52:36.887553 7fcf0923ea80 EVENT_LOG_v1 {"time_micros": 1615704756887550, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704757641031 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704757641031
new file mode 100644
index 0000000..7dbbd73
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704757641031
@@ -0,0 +1,186 @@
+2021/03/14-07:52:36.900343 7fcf0923ea80 RocksDB version: 5.11.3
+2021/03/14-07:52:36.900414 7fcf0923ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:52:36.900416 7fcf0923ea80 Compile date Mar 13 2021
+2021/03/14-07:52:36.900418 7fcf0923ea80 DB SUMMARY
+2021/03/14-07:52:36.900596 7fcf0923ea80 CURRENT file: CURRENT
+2021/03/14-07:52:36.900597 7fcf0923ea80 IDENTITY file: IDENTITY
+2021/03/14-07:52:36.900613 7fcf0923ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:52:36.900614 7fcf0923ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:52:36.900615 7fcf0923ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:52:36.900621 7fcf0923ea80 Options.error_if_exists: 0
+2021/03/14-07:52:36.900622 7fcf0923ea80 Options.create_if_missing: 1
+2021/03/14-07:52:36.900622 7fcf0923ea80 Options.paranoid_checks: 1
+2021/03/14-07:52:36.900623 7fcf0923ea80 Options.env: 0x7fcf09bf8080
+2021/03/14-07:52:36.900624 7fcf0923ea80 Options.info_log: 0x28deca0
+2021/03/14-07:52:36.900624 7fcf0923ea80 Options.max_file_opening_threads: 16
+2021/03/14-07:52:36.900625 7fcf0923ea80 Options.statistics: (nil)
+2021/03/14-07:52:36.900625 7fcf0923ea80 Options.use_fsync: 0
+2021/03/14-07:52:36.900626 7fcf0923ea80 Options.max_log_file_size: 0
+2021/03/14-07:52:36.900627 7fcf0923ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:52:36.900627 7fcf0923ea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:52:36.900628 7fcf0923ea80 Options.keep_log_file_num: 1000
+2021/03/14-07:52:36.900628 7fcf0923ea80 Options.recycle_log_file_num: 0
+2021/03/14-07:52:36.900629 7fcf0923ea80 Options.allow_fallocate: 1
+2021/03/14-07:52:36.900630 7fcf0923ea80 Options.allow_mmap_reads: 0
+2021/03/14-07:52:36.900630 7fcf0923ea80 Options.allow_mmap_writes: 0
+2021/03/14-07:52:36.900631 7fcf0923ea80 Options.use_direct_reads: 0
+2021/03/14-07:52:36.900631 7fcf0923ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:52:36.900632 7fcf0923ea80 Options.create_missing_column_families: 0
+2021/03/14-07:52:36.900632 7fcf0923ea80 Options.db_log_dir:
+2021/03/14-07:52:36.900633 7fcf0923ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:52:36.900633 7fcf0923ea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:52:36.900634 7fcf0923ea80 Options.max_subcompactions: 1
+2021/03/14-07:52:36.900635 7fcf0923ea80 Options.max_background_flushes: -1
+2021/03/14-07:52:36.900635 7fcf0923ea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:52:36.900636 7fcf0923ea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:52:36.900636 7fcf0923ea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:52:36.900637 7fcf0923ea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:52:36.900638 7fcf0923ea80 Options.advise_random_on_open: 1
+2021/03/14-07:52:36.900638 7fcf0923ea80 Options.db_write_buffer_size: 0
+2021/03/14-07:52:36.900639 7fcf0923ea80 Options.write_buffer_manager: 0x28c6b90
+2021/03/14-07:52:36.900639 7fcf0923ea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:52:36.900640 7fcf0923ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:52:36.900640 7fcf0923ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:52:36.900641 7fcf0923ea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:52:36.900641 7fcf0923ea80 Options.rate_limiter: (nil)
+2021/03/14-07:52:36.900643 7fcf0923ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:52:36.900651 7fcf0923ea80 Options.wal_recovery_mode: 2
+2021/03/14-07:52:36.900652 7fcf0923ea80 Options.enable_thread_tracking: 0
+2021/03/14-07:52:36.900653 7fcf0923ea80 Options.enable_pipelined_write: 0
+2021/03/14-07:52:36.900653 7fcf0923ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:52:36.900654 7fcf0923ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:52:36.900654 7fcf0923ea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:52:36.900655 7fcf0923ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:52:36.900655 7fcf0923ea80 Options.row_cache: None
+2021/03/14-07:52:36.900656 7fcf0923ea80 Options.wal_filter: None
+2021/03/14-07:52:36.900657 7fcf0923ea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:52:36.900657 7fcf0923ea80 Options.allow_ingest_behind: 0
+2021/03/14-07:52:36.900658 7fcf0923ea80 Options.preserve_deletes: 0
+2021/03/14-07:52:36.900658 7fcf0923ea80 Options.two_write_queues: 0
+2021/03/14-07:52:36.900659 7fcf0923ea80 Options.manual_wal_flush: 0
+2021/03/14-07:52:36.900660 7fcf0923ea80 Options.max_background_jobs: 16
+2021/03/14-07:52:36.900661 7fcf0923ea80 Options.max_background_compactions: -1
+2021/03/14-07:52:36.900661 7fcf0923ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:52:36.900662 7fcf0923ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:52:36.900662 7fcf0923ea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:52:36.900663 7fcf0923ea80 Options.max_total_wal_size: 0
+2021/03/14-07:52:36.900663 7fcf0923ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:52:36.900664 7fcf0923ea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:52:36.900665 7fcf0923ea80 Options.max_open_files: -1
+2021/03/14-07:52:36.900665 7fcf0923ea80 Options.bytes_per_sync: 0
+2021/03/14-07:52:36.900666 7fcf0923ea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:52:36.900666 7fcf0923ea80 Options.compaction_readahead_size: 0
+2021/03/14-07:52:36.900667 7fcf0923ea80 Compression algorithms supported:
+2021/03/14-07:52:36.900667 7fcf0923ea80 Snappy supported: 1
+2021/03/14-07:52:36.900668 7fcf0923ea80 Zlib supported: 1
+2021/03/14-07:52:36.900669 7fcf0923ea80 Bzip supported: 1
+2021/03/14-07:52:36.900669 7fcf0923ea80 LZ4 supported: 1
+2021/03/14-07:52:36.900670 7fcf0923ea80 ZSTDNotFinal supported: 1
+2021/03/14-07:52:36.900674 7fcf0923ea80 ZSTD supported: 1
+2021/03/14-07:52:36.900677 7fcf0923ea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:52:36.900679 7fcf0923ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:52:36.900774 7fcf0923ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:52:36.900834 7fcf0923ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:52:36.900836 7fcf0923ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:52:36.900837 7fcf0923ea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:52:36.900837 7fcf0923ea80 Options.compaction_filter: None
+2021/03/14-07:52:36.900838 7fcf0923ea80 Options.compaction_filter_factory: None
+2021/03/14-07:52:36.900838 7fcf0923ea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:52:36.900839 7fcf0923ea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:52:36.900853 7fcf0923ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x28d6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x28bbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:52:36.900854 7fcf0923ea80 Options.write_buffer_size: 134217728
+2021/03/14-07:52:36.900855 7fcf0923ea80 Options.max_write_buffer_number: 6
+2021/03/14-07:52:36.900855 7fcf0923ea80 Options.compression[0]: NoCompression
+2021/03/14-07:52:36.900856 7fcf0923ea80 Options.compression[1]: NoCompression
+2021/03/14-07:52:36.900857 7fcf0923ea80 Options.compression[2]: Snappy
+2021/03/14-07:52:36.900857 7fcf0923ea80 Options.compression[3]: Snappy
+2021/03/14-07:52:36.900858 7fcf0923ea80 Options.compression[4]: Snappy
+2021/03/14-07:52:36.900858 7fcf0923ea80 Options.compression[5]: Snappy
+2021/03/14-07:52:36.900859 7fcf0923ea80 Options.compression[6]: Snappy
+2021/03/14-07:52:36.900859 7fcf0923ea80 Options.bottommost_compression: Disabled
+2021/03/14-07:52:36.900860 7fcf0923ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:52:36.900861 7fcf0923ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:52:36.900861 7fcf0923ea80 Options.num_levels: 7
+2021/03/14-07:52:36.900862 7fcf0923ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:52:36.900863 7fcf0923ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:52:36.900863 7fcf0923ea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:52:36.900864 7fcf0923ea80 Options.compression_opts.level: -1
+2021/03/14-07:52:36.900864 7fcf0923ea80 Options.compression_opts.strategy: 0
+2021/03/14-07:52:36.900865 7fcf0923ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:52:36.900865 7fcf0923ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:52:36.900866 7fcf0923ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:52:36.900867 7fcf0923ea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:52:36.900867 7fcf0923ea80 Options.target_file_size_base: 67108864
+2021/03/14-07:52:36.900868 7fcf0923ea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:52:36.900868 7fcf0923ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:52:36.900869 7fcf0923ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:52:36.900869 7fcf0923ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:52:36.900871 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:52:36.900879 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:52:36.900879 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:52:36.900880 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:52:36.900880 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:52:36.900881 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:52:36.900881 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:52:36.900882 7fcf0923ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:52:36.900883 7fcf0923ea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:52:36.900883 7fcf0923ea80 Options.arena_block_size: 16777216
+2021/03/14-07:52:36.900884 7fcf0923ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:52:36.900884 7fcf0923ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:52:36.900885 7fcf0923ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:52:36.900886 7fcf0923ea80 Options.disable_auto_compactions: 0
+2021/03/14-07:52:36.900887 7fcf0923ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:52:36.900888 7fcf0923ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:52:36.900889 7fcf0923ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:52:36.900889 7fcf0923ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:52:36.900890 7fcf0923ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:52:36.900890 7fcf0923ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:52:36.900891 7fcf0923ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:52:36.900892 7fcf0923ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:52:36.900892 7fcf0923ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:52:36.900893 7fcf0923ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:52:36.900894 7fcf0923ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:52:36.900894 7fcf0923ea80 Options.table_properties_collectors:
+2021/03/14-07:52:36.900895 7fcf0923ea80 Options.inplace_update_support: 0
+2021/03/14-07:52:36.900895 7fcf0923ea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:52:36.900896 7fcf0923ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:52:36.900897 7fcf0923ea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:52:36.900897 7fcf0923ea80 Options.bloom_locality: 0
+2021/03/14-07:52:36.900898 7fcf0923ea80 Options.max_successive_merges: 0
+2021/03/14-07:52:36.900898 7fcf0923ea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:52:36.900899 7fcf0923ea80 Options.paranoid_file_checks: 0
+2021/03/14-07:52:36.900899 7fcf0923ea80 Options.force_consistency_checks: 0
+2021/03/14-07:52:36.900900 7fcf0923ea80 Options.report_bg_io_stats: 0
+2021/03/14-07:52:36.901308 7fcf0923ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:52:36.901311 7fcf0923ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:52:36.901477 7fcf0923ea80 EVENT_LOG_v1 {"time_micros": 1615704756901466, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:52:36.901484 7fcf0923ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:52:37.628680 7fcf0923ea80 EVENT_LOG_v1 {"time_micros": 1615704757628676, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704784057399 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704784057399
new file mode 100644
index 0000000..c626cf2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704784057399
@@ -0,0 +1,186 @@
+2021/03/14-07:52:37.641458 7fcf0923ea80 RocksDB version: 5.11.3
+2021/03/14-07:52:37.641514 7fcf0923ea80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:52:37.641515 7fcf0923ea80 Compile date Mar 13 2021
+2021/03/14-07:52:37.641518 7fcf0923ea80 DB SUMMARY
+2021/03/14-07:52:37.641683 7fcf0923ea80 CURRENT file: CURRENT
+2021/03/14-07:52:37.641684 7fcf0923ea80 IDENTITY file: IDENTITY
+2021/03/14-07:52:37.641700 7fcf0923ea80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:52:37.641702 7fcf0923ea80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:52:37.641702 7fcf0923ea80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:52:37.641708 7fcf0923ea80 Options.error_if_exists: 0
+2021/03/14-07:52:37.641709 7fcf0923ea80 Options.create_if_missing: 1
+2021/03/14-07:52:37.641709 7fcf0923ea80 Options.paranoid_checks: 1
+2021/03/14-07:52:37.641710 7fcf0923ea80 Options.env: 0x7fcf09bf8080
+2021/03/14-07:52:37.641711 7fcf0923ea80 Options.info_log: 0x28deca0
+2021/03/14-07:52:37.641711 7fcf0923ea80 Options.max_file_opening_threads: 16
+2021/03/14-07:52:37.641712 7fcf0923ea80 Options.statistics: (nil)
+2021/03/14-07:52:37.641713 7fcf0923ea80 Options.use_fsync: 0
+2021/03/14-07:52:37.641713 7fcf0923ea80 Options.max_log_file_size: 0
+2021/03/14-07:52:37.641714 7fcf0923ea80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:52:37.641714 7fcf0923ea80 Options.log_file_time_to_roll: 0
+2021/03/14-07:52:37.641715 7fcf0923ea80 Options.keep_log_file_num: 1000
+2021/03/14-07:52:37.641715 7fcf0923ea80 Options.recycle_log_file_num: 0
+2021/03/14-07:52:37.641716 7fcf0923ea80 Options.allow_fallocate: 1
+2021/03/14-07:52:37.641717 7fcf0923ea80 Options.allow_mmap_reads: 0
+2021/03/14-07:52:37.641717 7fcf0923ea80 Options.allow_mmap_writes: 0
+2021/03/14-07:52:37.641718 7fcf0923ea80 Options.use_direct_reads: 0
+2021/03/14-07:52:37.641718 7fcf0923ea80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:52:37.641719 7fcf0923ea80 Options.create_missing_column_families: 0
+2021/03/14-07:52:37.641719 7fcf0923ea80 Options.db_log_dir:
+2021/03/14-07:52:37.641720 7fcf0923ea80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:52:37.641720 7fcf0923ea80 Options.table_cache_numshardbits: 6
+2021/03/14-07:52:37.641721 7fcf0923ea80 Options.max_subcompactions: 1
+2021/03/14-07:52:37.641722 7fcf0923ea80 Options.max_background_flushes: -1
+2021/03/14-07:52:37.641722 7fcf0923ea80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:52:37.641723 7fcf0923ea80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:52:37.641723 7fcf0923ea80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:52:37.641724 7fcf0923ea80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:52:37.641725 7fcf0923ea80 Options.advise_random_on_open: 1
+2021/03/14-07:52:37.641725 7fcf0923ea80 Options.db_write_buffer_size: 0
+2021/03/14-07:52:37.641726 7fcf0923ea80 Options.write_buffer_manager: 0x28c6b90
+2021/03/14-07:52:37.641726 7fcf0923ea80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:52:37.641727 7fcf0923ea80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:52:37.641727 7fcf0923ea80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:52:37.641728 7fcf0923ea80 Options.use_adaptive_mutex: 0
+2021/03/14-07:52:37.641728 7fcf0923ea80 Options.rate_limiter: (nil)
+2021/03/14-07:52:37.641730 7fcf0923ea80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:52:37.641737 7fcf0923ea80 Options.wal_recovery_mode: 2
+2021/03/14-07:52:37.641738 7fcf0923ea80 Options.enable_thread_tracking: 0
+2021/03/14-07:52:37.641739 7fcf0923ea80 Options.enable_pipelined_write: 0
+2021/03/14-07:52:37.641739 7fcf0923ea80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:52:37.641740 7fcf0923ea80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:52:37.641740 7fcf0923ea80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:52:37.641741 7fcf0923ea80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:52:37.641742 7fcf0923ea80 Options.row_cache: None
+2021/03/14-07:52:37.641742 7fcf0923ea80 Options.wal_filter: None
+2021/03/14-07:52:37.641743 7fcf0923ea80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:52:37.641743 7fcf0923ea80 Options.allow_ingest_behind: 0
+2021/03/14-07:52:37.641744 7fcf0923ea80 Options.preserve_deletes: 0
+2021/03/14-07:52:37.641744 7fcf0923ea80 Options.two_write_queues: 0
+2021/03/14-07:52:37.641745 7fcf0923ea80 Options.manual_wal_flush: 0
+2021/03/14-07:52:37.641746 7fcf0923ea80 Options.max_background_jobs: 16
+2021/03/14-07:52:37.641747 7fcf0923ea80 Options.max_background_compactions: -1
+2021/03/14-07:52:37.641747 7fcf0923ea80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:52:37.641748 7fcf0923ea80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:52:37.641748 7fcf0923ea80 Options.delayed_write_rate : 16777216
+2021/03/14-07:52:37.641749 7fcf0923ea80 Options.max_total_wal_size: 0
+2021/03/14-07:52:37.641749 7fcf0923ea80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:52:37.641750 7fcf0923ea80 Options.stats_dump_period_sec: 600
+2021/03/14-07:52:37.641751 7fcf0923ea80 Options.max_open_files: -1
+2021/03/14-07:52:37.641751 7fcf0923ea80 Options.bytes_per_sync: 0
+2021/03/14-07:52:37.641752 7fcf0923ea80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:52:37.641752 7fcf0923ea80 Options.compaction_readahead_size: 0
+2021/03/14-07:52:37.641753 7fcf0923ea80 Compression algorithms supported:
+2021/03/14-07:52:37.641753 7fcf0923ea80 Snappy supported: 1
+2021/03/14-07:52:37.641754 7fcf0923ea80 Zlib supported: 1
+2021/03/14-07:52:37.641755 7fcf0923ea80 Bzip supported: 1
+2021/03/14-07:52:37.641755 7fcf0923ea80 LZ4 supported: 1
+2021/03/14-07:52:37.641756 7fcf0923ea80 ZSTDNotFinal supported: 1
+2021/03/14-07:52:37.641759 7fcf0923ea80 ZSTD supported: 1
+2021/03/14-07:52:37.641762 7fcf0923ea80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:52:37.641764 7fcf0923ea80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:52:37.641855 7fcf0923ea80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:52:37.641908 7fcf0923ea80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:52:37.641910 7fcf0923ea80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:52:37.641911 7fcf0923ea80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:52:37.641912 7fcf0923ea80 Options.compaction_filter: None
+2021/03/14-07:52:37.641912 7fcf0923ea80 Options.compaction_filter_factory: None
+2021/03/14-07:52:37.641913 7fcf0923ea80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:52:37.641914 7fcf0923ea80 Options.table_factory: BlockBasedTable
+2021/03/14-07:52:37.641927 7fcf0923ea80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x28d6520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x28bbc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:52:37.641928 7fcf0923ea80 Options.write_buffer_size: 134217728
+2021/03/14-07:52:37.641929 7fcf0923ea80 Options.max_write_buffer_number: 6
+2021/03/14-07:52:37.641929 7fcf0923ea80 Options.compression[0]: NoCompression
+2021/03/14-07:52:37.641930 7fcf0923ea80 Options.compression[1]: NoCompression
+2021/03/14-07:52:37.641931 7fcf0923ea80 Options.compression[2]: Snappy
+2021/03/14-07:52:37.641931 7fcf0923ea80 Options.compression[3]: Snappy
+2021/03/14-07:52:37.641932 7fcf0923ea80 Options.compression[4]: Snappy
+2021/03/14-07:52:37.641932 7fcf0923ea80 Options.compression[5]: Snappy
+2021/03/14-07:52:37.641933 7fcf0923ea80 Options.compression[6]: Snappy
+2021/03/14-07:52:37.641933 7fcf0923ea80 Options.bottommost_compression: Disabled
+2021/03/14-07:52:37.641934 7fcf0923ea80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:52:37.641935 7fcf0923ea80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:52:37.641935 7fcf0923ea80 Options.num_levels: 7
+2021/03/14-07:52:37.641936 7fcf0923ea80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:52:37.641936 7fcf0923ea80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:52:37.641937 7fcf0923ea80 Options.compression_opts.window_bits: -14
+2021/03/14-07:52:37.641938 7fcf0923ea80 Options.compression_opts.level: -1
+2021/03/14-07:52:37.641938 7fcf0923ea80 Options.compression_opts.strategy: 0
+2021/03/14-07:52:37.641939 7fcf0923ea80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:52:37.641939 7fcf0923ea80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:52:37.641940 7fcf0923ea80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:52:37.641940 7fcf0923ea80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:52:37.641941 7fcf0923ea80 Options.target_file_size_base: 67108864
+2021/03/14-07:52:37.641942 7fcf0923ea80 Options.target_file_size_multiplier: 1
+2021/03/14-07:52:37.641942 7fcf0923ea80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:52:37.641943 7fcf0923ea80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:52:37.641943 7fcf0923ea80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:52:37.641945 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:52:37.641952 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:52:37.641953 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:52:37.641953 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:52:37.641954 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:52:37.641955 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:52:37.641955 7fcf0923ea80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:52:37.641956 7fcf0923ea80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:52:37.641956 7fcf0923ea80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:52:37.641957 7fcf0923ea80 Options.arena_block_size: 16777216
+2021/03/14-07:52:37.641957 7fcf0923ea80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:52:37.641958 7fcf0923ea80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:52:37.641959 7fcf0923ea80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:52:37.641959 7fcf0923ea80 Options.disable_auto_compactions: 0
+2021/03/14-07:52:37.641961 7fcf0923ea80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:52:37.641962 7fcf0923ea80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:52:37.641962 7fcf0923ea80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:52:37.641963 7fcf0923ea80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:52:37.641963 7fcf0923ea80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:52:37.641964 7fcf0923ea80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:52:37.641965 7fcf0923ea80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:52:37.641966 7fcf0923ea80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:52:37.641966 7fcf0923ea80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:52:37.641967 7fcf0923ea80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:52:37.641967 7fcf0923ea80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:52:37.641968 7fcf0923ea80 Options.table_properties_collectors:
+2021/03/14-07:52:37.641968 7fcf0923ea80 Options.inplace_update_support: 0
+2021/03/14-07:52:37.641969 7fcf0923ea80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:52:37.641970 7fcf0923ea80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:52:37.641970 7fcf0923ea80 Options.memtable_huge_page_size: 0
+2021/03/14-07:52:37.641971 7fcf0923ea80 Options.bloom_locality: 0
+2021/03/14-07:52:37.641972 7fcf0923ea80 Options.max_successive_merges: 0
+2021/03/14-07:52:37.641972 7fcf0923ea80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:52:37.641973 7fcf0923ea80 Options.paranoid_file_checks: 0
+2021/03/14-07:52:37.641973 7fcf0923ea80 Options.force_consistency_checks: 0
+2021/03/14-07:52:37.641974 7fcf0923ea80 Options.report_bg_io_stats: 0
+2021/03/14-07:52:37.642365 7fcf0923ea80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:52:37.642367 7fcf0923ea80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:52:37.642530 7fcf0923ea80 EVENT_LOG_v1 {"time_micros": 1615704757642520, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:52:37.642535 7fcf0923ea80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:52:38.359832 7fcf0923ea80 EVENT_LOG_v1 {"time_micros": 1615704758359829, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704784768198 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704784768198
new file mode 100644
index 0000000..4c41753
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704784768198
@@ -0,0 +1,186 @@
+2021/03/14-07:53:04.057945 7f6812f47a80 RocksDB version: 5.11.3
+2021/03/14-07:53:04.058017 7f6812f47a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:53:04.058019 7f6812f47a80 Compile date Mar 13 2021
+2021/03/14-07:53:04.058026 7f6812f47a80 DB SUMMARY
+2021/03/14-07:53:04.058210 7f6812f47a80 CURRENT file: CURRENT
+2021/03/14-07:53:04.058211 7f6812f47a80 IDENTITY file: IDENTITY
+2021/03/14-07:53:04.058229 7f6812f47a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:53:04.058230 7f6812f47a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:53:04.058231 7f6812f47a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:53:04.058245 7f6812f47a80 Options.error_if_exists: 0
+2021/03/14-07:53:04.058247 7f6812f47a80 Options.create_if_missing: 1
+2021/03/14-07:53:04.058247 7f6812f47a80 Options.paranoid_checks: 1
+2021/03/14-07:53:04.058248 7f6812f47a80 Options.env: 0x7f6813901080
+2021/03/14-07:53:04.058249 7f6812f47a80 Options.info_log: 0x25d6ca0
+2021/03/14-07:53:04.058250 7f6812f47a80 Options.max_file_opening_threads: 16
+2021/03/14-07:53:04.058250 7f6812f47a80 Options.statistics: (nil)
+2021/03/14-07:53:04.058251 7f6812f47a80 Options.use_fsync: 0
+2021/03/14-07:53:04.058252 7f6812f47a80 Options.max_log_file_size: 0
+2021/03/14-07:53:04.058253 7f6812f47a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:53:04.058253 7f6812f47a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:53:04.058254 7f6812f47a80 Options.keep_log_file_num: 1000
+2021/03/14-07:53:04.058255 7f6812f47a80 Options.recycle_log_file_num: 0
+2021/03/14-07:53:04.058255 7f6812f47a80 Options.allow_fallocate: 1
+2021/03/14-07:53:04.058256 7f6812f47a80 Options.allow_mmap_reads: 0
+2021/03/14-07:53:04.058257 7f6812f47a80 Options.allow_mmap_writes: 0
+2021/03/14-07:53:04.058257 7f6812f47a80 Options.use_direct_reads: 0
+2021/03/14-07:53:04.058258 7f6812f47a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:53:04.058258 7f6812f47a80 Options.create_missing_column_families: 0
+2021/03/14-07:53:04.058259 7f6812f47a80 Options.db_log_dir:
+2021/03/14-07:53:04.058260 7f6812f47a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:53:04.058260 7f6812f47a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:53:04.058261 7f6812f47a80 Options.max_subcompactions: 1
+2021/03/14-07:53:04.058261 7f6812f47a80 Options.max_background_flushes: -1
+2021/03/14-07:53:04.058262 7f6812f47a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:53:04.058263 7f6812f47a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:53:04.058263 7f6812f47a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:53:04.058264 7f6812f47a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:53:04.058265 7f6812f47a80 Options.advise_random_on_open: 1
+2021/03/14-07:53:04.058265 7f6812f47a80 Options.db_write_buffer_size: 0
+2021/03/14-07:53:04.058266 7f6812f47a80 Options.write_buffer_manager: 0x25beb90
+2021/03/14-07:53:04.058267 7f6812f47a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:53:04.058267 7f6812f47a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:53:04.058268 7f6812f47a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:53:04.058268 7f6812f47a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:53:04.058269 7f6812f47a80 Options.rate_limiter: (nil)
+2021/03/14-07:53:04.058271 7f6812f47a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:53:04.058281 7f6812f47a80 Options.wal_recovery_mode: 2
+2021/03/14-07:53:04.058282 7f6812f47a80 Options.enable_thread_tracking: 0
+2021/03/14-07:53:04.058283 7f6812f47a80 Options.enable_pipelined_write: 0
+2021/03/14-07:53:04.058283 7f6812f47a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:53:04.058284 7f6812f47a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:53:04.058285 7f6812f47a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:53:04.058285 7f6812f47a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:53:04.058286 7f6812f47a80 Options.row_cache: None
+2021/03/14-07:53:04.058286 7f6812f47a80 Options.wal_filter: None
+2021/03/14-07:53:04.058287 7f6812f47a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:53:04.058288 7f6812f47a80 Options.allow_ingest_behind: 0
+2021/03/14-07:53:04.058288 7f6812f47a80 Options.preserve_deletes: 0
+2021/03/14-07:53:04.058289 7f6812f47a80 Options.two_write_queues: 0
+2021/03/14-07:53:04.058290 7f6812f47a80 Options.manual_wal_flush: 0
+2021/03/14-07:53:04.058291 7f6812f47a80 Options.max_background_jobs: 16
+2021/03/14-07:53:04.058292 7f6812f47a80 Options.max_background_compactions: -1
+2021/03/14-07:53:04.058292 7f6812f47a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:53:04.058293 7f6812f47a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:53:04.058293 7f6812f47a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:53:04.058294 7f6812f47a80 Options.max_total_wal_size: 0
+2021/03/14-07:53:04.058295 7f6812f47a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:53:04.058295 7f6812f47a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:53:04.058296 7f6812f47a80 Options.max_open_files: -1
+2021/03/14-07:53:04.058297 7f6812f47a80 Options.bytes_per_sync: 0
+2021/03/14-07:53:04.058297 7f6812f47a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:53:04.058298 7f6812f47a80 Options.compaction_readahead_size: 0
+2021/03/14-07:53:04.058298 7f6812f47a80 Compression algorithms supported:
+2021/03/14-07:53:04.058299 7f6812f47a80 Snappy supported: 1
+2021/03/14-07:53:04.058300 7f6812f47a80 Zlib supported: 1
+2021/03/14-07:53:04.058301 7f6812f47a80 Bzip supported: 1
+2021/03/14-07:53:04.058301 7f6812f47a80 LZ4 supported: 1
+2021/03/14-07:53:04.058302 7f6812f47a80 ZSTDNotFinal supported: 1
+2021/03/14-07:53:04.058307 7f6812f47a80 ZSTD supported: 1
+2021/03/14-07:53:04.058312 7f6812f47a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:53:04.058315 7f6812f47a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:53:04.058434 7f6812f47a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:53:04.058500 7f6812f47a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:53:04.058502 7f6812f47a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:53:04.058503 7f6812f47a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:53:04.058504 7f6812f47a80 Options.compaction_filter: None
+2021/03/14-07:53:04.058504 7f6812f47a80 Options.compaction_filter_factory: None
+2021/03/14-07:53:04.058505 7f6812f47a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:53:04.058507 7f6812f47a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:53:04.058523 7f6812f47a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x25ce520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x25b3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:53:04.058524 7f6812f47a80 Options.write_buffer_size: 134217728
+2021/03/14-07:53:04.058525 7f6812f47a80 Options.max_write_buffer_number: 6
+2021/03/14-07:53:04.058526 7f6812f47a80 Options.compression[0]: NoCompression
+2021/03/14-07:53:04.058527 7f6812f47a80 Options.compression[1]: NoCompression
+2021/03/14-07:53:04.058527 7f6812f47a80 Options.compression[2]: Snappy
+2021/03/14-07:53:04.058528 7f6812f47a80 Options.compression[3]: Snappy
+2021/03/14-07:53:04.058529 7f6812f47a80 Options.compression[4]: Snappy
+2021/03/14-07:53:04.058529 7f6812f47a80 Options.compression[5]: Snappy
+2021/03/14-07:53:04.058530 7f6812f47a80 Options.compression[6]: Snappy
+2021/03/14-07:53:04.058531 7f6812f47a80 Options.bottommost_compression: Disabled
+2021/03/14-07:53:04.058532 7f6812f47a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:53:04.058532 7f6812f47a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:53:04.058533 7f6812f47a80 Options.num_levels: 7
+2021/03/14-07:53:04.058534 7f6812f47a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:53:04.058534 7f6812f47a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:53:04.058535 7f6812f47a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:53:04.058536 7f6812f47a80 Options.compression_opts.level: -1
+2021/03/14-07:53:04.058536 7f6812f47a80 Options.compression_opts.strategy: 0
+2021/03/14-07:53:04.058537 7f6812f47a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:53:04.058538 7f6812f47a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:53:04.058538 7f6812f47a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:53:04.058539 7f6812f47a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:53:04.058539 7f6812f47a80 Options.target_file_size_base: 67108864
+2021/03/14-07:53:04.058540 7f6812f47a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:53:04.058541 7f6812f47a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:53:04.058542 7f6812f47a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:53:04.058542 7f6812f47a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:53:04.058544 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:53:04.058553 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:53:04.058554 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:53:04.058555 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:53:04.058555 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:53:04.058556 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:53:04.058557 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:53:04.058557 7f6812f47a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:53:04.058558 7f6812f47a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:53:04.058559 7f6812f47a80 Options.arena_block_size: 16777216
+2021/03/14-07:53:04.058559 7f6812f47a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:53:04.058560 7f6812f47a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:53:04.058561 7f6812f47a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:53:04.058561 7f6812f47a80 Options.disable_auto_compactions: 0
+2021/03/14-07:53:04.058564 7f6812f47a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:53:04.058565 7f6812f47a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:53:04.058566 7f6812f47a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:53:04.058566 7f6812f47a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:53:04.058567 7f6812f47a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:53:04.058568 7f6812f47a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:53:04.058568 7f6812f47a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:53:04.058570 7f6812f47a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:53:04.058570 7f6812f47a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:53:04.058571 7f6812f47a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:53:04.058571 7f6812f47a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:53:04.058572 7f6812f47a80 Options.table_properties_collectors:
+2021/03/14-07:53:04.058573 7f6812f47a80 Options.inplace_update_support: 0
+2021/03/14-07:53:04.058573 7f6812f47a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:53:04.058574 7f6812f47a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:53:04.058575 7f6812f47a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:53:04.058576 7f6812f47a80 Options.bloom_locality: 0
+2021/03/14-07:53:04.058576 7f6812f47a80 Options.max_successive_merges: 0
+2021/03/14-07:53:04.058577 7f6812f47a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:53:04.058577 7f6812f47a80 Options.paranoid_file_checks: 0
+2021/03/14-07:53:04.058578 7f6812f47a80 Options.force_consistency_checks: 0
+2021/03/14-07:53:04.058579 7f6812f47a80 Options.report_bg_io_stats: 0
+2021/03/14-07:53:04.059060 7f6812f47a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:53:04.059064 7f6812f47a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:53:04.059269 7f6812f47a80 EVENT_LOG_v1 {"time_micros": 1615704784059255, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:53:04.059276 7f6812f47a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:53:04.755906 7f6812f47a80 EVENT_LOG_v1 {"time_micros": 1615704784755903, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704785476727 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704785476727
new file mode 100644
index 0000000..e9d883a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704785476727
@@ -0,0 +1,186 @@
+2021/03/14-07:53:04.768644 7f6812f47a80 RocksDB version: 5.11.3
+2021/03/14-07:53:04.768697 7f6812f47a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:53:04.768699 7f6812f47a80 Compile date Mar 13 2021
+2021/03/14-07:53:04.768703 7f6812f47a80 DB SUMMARY
+2021/03/14-07:53:04.768870 7f6812f47a80 CURRENT file: CURRENT
+2021/03/14-07:53:04.768871 7f6812f47a80 IDENTITY file: IDENTITY
+2021/03/14-07:53:04.768887 7f6812f47a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:53:04.768888 7f6812f47a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:53:04.768889 7f6812f47a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:53:04.768895 7f6812f47a80 Options.error_if_exists: 0
+2021/03/14-07:53:04.768895 7f6812f47a80 Options.create_if_missing: 1
+2021/03/14-07:53:04.768896 7f6812f47a80 Options.paranoid_checks: 1
+2021/03/14-07:53:04.768897 7f6812f47a80 Options.env: 0x7f6813901080
+2021/03/14-07:53:04.768897 7f6812f47a80 Options.info_log: 0x25d6ca0
+2021/03/14-07:53:04.768898 7f6812f47a80 Options.max_file_opening_threads: 16
+2021/03/14-07:53:04.768899 7f6812f47a80 Options.statistics: (nil)
+2021/03/14-07:53:04.768899 7f6812f47a80 Options.use_fsync: 0
+2021/03/14-07:53:04.768900 7f6812f47a80 Options.max_log_file_size: 0
+2021/03/14-07:53:04.768901 7f6812f47a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:53:04.768901 7f6812f47a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:53:04.768902 7f6812f47a80 Options.keep_log_file_num: 1000
+2021/03/14-07:53:04.768902 7f6812f47a80 Options.recycle_log_file_num: 0
+2021/03/14-07:53:04.768903 7f6812f47a80 Options.allow_fallocate: 1
+2021/03/14-07:53:04.768904 7f6812f47a80 Options.allow_mmap_reads: 0
+2021/03/14-07:53:04.768904 7f6812f47a80 Options.allow_mmap_writes: 0
+2021/03/14-07:53:04.768905 7f6812f47a80 Options.use_direct_reads: 0
+2021/03/14-07:53:04.768905 7f6812f47a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:53:04.768906 7f6812f47a80 Options.create_missing_column_families: 0
+2021/03/14-07:53:04.768906 7f6812f47a80 Options.db_log_dir:
+2021/03/14-07:53:04.768907 7f6812f47a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:53:04.768908 7f6812f47a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:53:04.768908 7f6812f47a80 Options.max_subcompactions: 1
+2021/03/14-07:53:04.768909 7f6812f47a80 Options.max_background_flushes: -1
+2021/03/14-07:53:04.768910 7f6812f47a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:53:04.768910 7f6812f47a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:53:04.768911 7f6812f47a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:53:04.768911 7f6812f47a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:53:04.768912 7f6812f47a80 Options.advise_random_on_open: 1
+2021/03/14-07:53:04.768912 7f6812f47a80 Options.db_write_buffer_size: 0
+2021/03/14-07:53:04.768913 7f6812f47a80 Options.write_buffer_manager: 0x25beb90
+2021/03/14-07:53:04.768914 7f6812f47a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:53:04.768914 7f6812f47a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:53:04.768915 7f6812f47a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:53:04.768915 7f6812f47a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:53:04.768916 7f6812f47a80 Options.rate_limiter: (nil)
+2021/03/14-07:53:04.768917 7f6812f47a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:53:04.768925 7f6812f47a80 Options.wal_recovery_mode: 2
+2021/03/14-07:53:04.768926 7f6812f47a80 Options.enable_thread_tracking: 0
+2021/03/14-07:53:04.768926 7f6812f47a80 Options.enable_pipelined_write: 0
+2021/03/14-07:53:04.768927 7f6812f47a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:53:04.768927 7f6812f47a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:53:04.768928 7f6812f47a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:53:04.768928 7f6812f47a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:53:04.768929 7f6812f47a80 Options.row_cache: None
+2021/03/14-07:53:04.768930 7f6812f47a80 Options.wal_filter: None
+2021/03/14-07:53:04.768930 7f6812f47a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:53:04.768931 7f6812f47a80 Options.allow_ingest_behind: 0
+2021/03/14-07:53:04.768931 7f6812f47a80 Options.preserve_deletes: 0
+2021/03/14-07:53:04.768932 7f6812f47a80 Options.two_write_queues: 0
+2021/03/14-07:53:04.768932 7f6812f47a80 Options.manual_wal_flush: 0
+2021/03/14-07:53:04.768934 7f6812f47a80 Options.max_background_jobs: 16
+2021/03/14-07:53:04.768934 7f6812f47a80 Options.max_background_compactions: -1
+2021/03/14-07:53:04.768935 7f6812f47a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:53:04.768935 7f6812f47a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:53:04.768936 7f6812f47a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:53:04.768937 7f6812f47a80 Options.max_total_wal_size: 0
+2021/03/14-07:53:04.768937 7f6812f47a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:53:04.768938 7f6812f47a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:53:04.768938 7f6812f47a80 Options.max_open_files: -1
+2021/03/14-07:53:04.768939 7f6812f47a80 Options.bytes_per_sync: 0
+2021/03/14-07:53:04.768940 7f6812f47a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:53:04.768940 7f6812f47a80 Options.compaction_readahead_size: 0
+2021/03/14-07:53:04.768941 7f6812f47a80 Compression algorithms supported:
+2021/03/14-07:53:04.768941 7f6812f47a80 Snappy supported: 1
+2021/03/14-07:53:04.768942 7f6812f47a80 Zlib supported: 1
+2021/03/14-07:53:04.768943 7f6812f47a80 Bzip supported: 1
+2021/03/14-07:53:04.768943 7f6812f47a80 LZ4 supported: 1
+2021/03/14-07:53:04.768944 7f6812f47a80 ZSTDNotFinal supported: 1
+2021/03/14-07:53:04.768948 7f6812f47a80 ZSTD supported: 1
+2021/03/14-07:53:04.768951 7f6812f47a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:53:04.768952 7f6812f47a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:53:04.769042 7f6812f47a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:53:04.769094 7f6812f47a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:53:04.769095 7f6812f47a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:53:04.769096 7f6812f47a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:53:04.769097 7f6812f47a80 Options.compaction_filter: None
+2021/03/14-07:53:04.769097 7f6812f47a80 Options.compaction_filter_factory: None
+2021/03/14-07:53:04.769098 7f6812f47a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:53:04.769099 7f6812f47a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:53:04.769112 7f6812f47a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x25ce520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x25b3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:53:04.769113 7f6812f47a80 Options.write_buffer_size: 134217728
+2021/03/14-07:53:04.769114 7f6812f47a80 Options.max_write_buffer_number: 6
+2021/03/14-07:53:04.769115 7f6812f47a80 Options.compression[0]: NoCompression
+2021/03/14-07:53:04.769115 7f6812f47a80 Options.compression[1]: NoCompression
+2021/03/14-07:53:04.769116 7f6812f47a80 Options.compression[2]: Snappy
+2021/03/14-07:53:04.769116 7f6812f47a80 Options.compression[3]: Snappy
+2021/03/14-07:53:04.769117 7f6812f47a80 Options.compression[4]: Snappy
+2021/03/14-07:53:04.769118 7f6812f47a80 Options.compression[5]: Snappy
+2021/03/14-07:53:04.769118 7f6812f47a80 Options.compression[6]: Snappy
+2021/03/14-07:53:04.769119 7f6812f47a80 Options.bottommost_compression: Disabled
+2021/03/14-07:53:04.769120 7f6812f47a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:53:04.769120 7f6812f47a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:53:04.769121 7f6812f47a80 Options.num_levels: 7
+2021/03/14-07:53:04.769121 7f6812f47a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:53:04.769122 7f6812f47a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:53:04.769123 7f6812f47a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:53:04.769123 7f6812f47a80 Options.compression_opts.level: -1
+2021/03/14-07:53:04.769124 7f6812f47a80 Options.compression_opts.strategy: 0
+2021/03/14-07:53:04.769124 7f6812f47a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:53:04.769125 7f6812f47a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:53:04.769126 7f6812f47a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:53:04.769126 7f6812f47a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:53:04.769127 7f6812f47a80 Options.target_file_size_base: 67108864
+2021/03/14-07:53:04.769127 7f6812f47a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:53:04.769128 7f6812f47a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:53:04.769129 7f6812f47a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:53:04.769129 7f6812f47a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:53:04.769131 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:53:04.769138 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:53:04.769139 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:53:04.769140 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:53:04.769140 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:53:04.769141 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:53:04.769141 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:53:04.769142 7f6812f47a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:53:04.769143 7f6812f47a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:53:04.769143 7f6812f47a80 Options.arena_block_size: 16777216
+2021/03/14-07:53:04.769144 7f6812f47a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:53:04.769144 7f6812f47a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:53:04.769145 7f6812f47a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:53:04.769146 7f6812f47a80 Options.disable_auto_compactions: 0
+2021/03/14-07:53:04.769147 7f6812f47a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:53:04.769148 7f6812f47a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:53:04.769149 7f6812f47a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:53:04.769149 7f6812f47a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:53:04.769150 7f6812f47a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:53:04.769150 7f6812f47a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:53:04.769151 7f6812f47a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:53:04.769152 7f6812f47a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:53:04.769153 7f6812f47a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:53:04.769153 7f6812f47a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:53:04.769154 7f6812f47a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:53:04.769154 7f6812f47a80 Options.table_properties_collectors:
+2021/03/14-07:53:04.769155 7f6812f47a80 Options.inplace_update_support: 0
+2021/03/14-07:53:04.769155 7f6812f47a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:53:04.769156 7f6812f47a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:53:04.769157 7f6812f47a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:53:04.769158 7f6812f47a80 Options.bloom_locality: 0
+2021/03/14-07:53:04.769158 7f6812f47a80 Options.max_successive_merges: 0
+2021/03/14-07:53:04.769159 7f6812f47a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:53:04.769159 7f6812f47a80 Options.paranoid_file_checks: 0
+2021/03/14-07:53:04.769160 7f6812f47a80 Options.force_consistency_checks: 0
+2021/03/14-07:53:04.769160 7f6812f47a80 Options.report_bg_io_stats: 0
+2021/03/14-07:53:04.769534 7f6812f47a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:53:04.769536 7f6812f47a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:53:04.769701 7f6812f47a80 EVENT_LOG_v1 {"time_micros": 1615704784769690, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:53:04.769706 7f6812f47a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:53:05.464537 7f6812f47a80 EVENT_LOG_v1 {"time_micros": 1615704785464533, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615704786187098 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704786187098
new file mode 100644
index 0000000..95040b2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615704786187098
@@ -0,0 +1,186 @@
+2021/03/14-07:53:05.477170 7f6812f47a80 RocksDB version: 5.11.3
+2021/03/14-07:53:05.477223 7f6812f47a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:53:05.477225 7f6812f47a80 Compile date Mar 13 2021
+2021/03/14-07:53:05.477229 7f6812f47a80 DB SUMMARY
+2021/03/14-07:53:05.477410 7f6812f47a80 CURRENT file: CURRENT
+2021/03/14-07:53:05.477411 7f6812f47a80 IDENTITY file: IDENTITY
+2021/03/14-07:53:05.477428 7f6812f47a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:53:05.477429 7f6812f47a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:53:05.477430 7f6812f47a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:53:05.477436 7f6812f47a80 Options.error_if_exists: 0
+2021/03/14-07:53:05.477436 7f6812f47a80 Options.create_if_missing: 1
+2021/03/14-07:53:05.477437 7f6812f47a80 Options.paranoid_checks: 1
+2021/03/14-07:53:05.477438 7f6812f47a80 Options.env: 0x7f6813901080
+2021/03/14-07:53:05.477438 7f6812f47a80 Options.info_log: 0x25d6ca0
+2021/03/14-07:53:05.477439 7f6812f47a80 Options.max_file_opening_threads: 16
+2021/03/14-07:53:05.477440 7f6812f47a80 Options.statistics: (nil)
+2021/03/14-07:53:05.477440 7f6812f47a80 Options.use_fsync: 0
+2021/03/14-07:53:05.477441 7f6812f47a80 Options.max_log_file_size: 0
+2021/03/14-07:53:05.477442 7f6812f47a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:53:05.477442 7f6812f47a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:53:05.477443 7f6812f47a80 Options.keep_log_file_num: 1000
+2021/03/14-07:53:05.477443 7f6812f47a80 Options.recycle_log_file_num: 0
+2021/03/14-07:53:05.477444 7f6812f47a80 Options.allow_fallocate: 1
+2021/03/14-07:53:05.477445 7f6812f47a80 Options.allow_mmap_reads: 0
+2021/03/14-07:53:05.477445 7f6812f47a80 Options.allow_mmap_writes: 0
+2021/03/14-07:53:05.477446 7f6812f47a80 Options.use_direct_reads: 0
+2021/03/14-07:53:05.477446 7f6812f47a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:53:05.477447 7f6812f47a80 Options.create_missing_column_families: 0
+2021/03/14-07:53:05.477447 7f6812f47a80 Options.db_log_dir:
+2021/03/14-07:53:05.477448 7f6812f47a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:53:05.477449 7f6812f47a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:53:05.477449 7f6812f47a80 Options.max_subcompactions: 1
+2021/03/14-07:53:05.477450 7f6812f47a80 Options.max_background_flushes: -1
+2021/03/14-07:53:05.477450 7f6812f47a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:53:05.477451 7f6812f47a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:53:05.477452 7f6812f47a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:53:05.477452 7f6812f47a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:53:05.477453 7f6812f47a80 Options.advise_random_on_open: 1
+2021/03/14-07:53:05.477453 7f6812f47a80 Options.db_write_buffer_size: 0
+2021/03/14-07:53:05.477454 7f6812f47a80 Options.write_buffer_manager: 0x25beb90
+2021/03/14-07:53:05.477455 7f6812f47a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:53:05.477455 7f6812f47a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:53:05.477456 7f6812f47a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:53:05.477456 7f6812f47a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:53:05.477457 7f6812f47a80 Options.rate_limiter: (nil)
+2021/03/14-07:53:05.477458 7f6812f47a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:53:05.477467 7f6812f47a80 Options.wal_recovery_mode: 2
+2021/03/14-07:53:05.477468 7f6812f47a80 Options.enable_thread_tracking: 0
+2021/03/14-07:53:05.477468 7f6812f47a80 Options.enable_pipelined_write: 0
+2021/03/14-07:53:05.477469 7f6812f47a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:53:05.477470 7f6812f47a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:53:05.477470 7f6812f47a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:53:05.477471 7f6812f47a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:53:05.477471 7f6812f47a80 Options.row_cache: None
+2021/03/14-07:53:05.477472 7f6812f47a80 Options.wal_filter: None
+2021/03/14-07:53:05.477473 7f6812f47a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:53:05.477473 7f6812f47a80 Options.allow_ingest_behind: 0
+2021/03/14-07:53:05.477474 7f6812f47a80 Options.preserve_deletes: 0
+2021/03/14-07:53:05.477474 7f6812f47a80 Options.two_write_queues: 0
+2021/03/14-07:53:05.477475 7f6812f47a80 Options.manual_wal_flush: 0
+2021/03/14-07:53:05.477476 7f6812f47a80 Options.max_background_jobs: 16
+2021/03/14-07:53:05.477477 7f6812f47a80 Options.max_background_compactions: -1
+2021/03/14-07:53:05.477477 7f6812f47a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:53:05.477478 7f6812f47a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:53:05.477478 7f6812f47a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:53:05.477479 7f6812f47a80 Options.max_total_wal_size: 0
+2021/03/14-07:53:05.477480 7f6812f47a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:53:05.477480 7f6812f47a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:53:05.477481 7f6812f47a80 Options.max_open_files: -1
+2021/03/14-07:53:05.477481 7f6812f47a80 Options.bytes_per_sync: 0
+2021/03/14-07:53:05.477482 7f6812f47a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:53:05.477483 7f6812f47a80 Options.compaction_readahead_size: 0
+2021/03/14-07:53:05.477483 7f6812f47a80 Compression algorithms supported:
+2021/03/14-07:53:05.477484 7f6812f47a80 Snappy supported: 1
+2021/03/14-07:53:05.477484 7f6812f47a80 Zlib supported: 1
+2021/03/14-07:53:05.477485 7f6812f47a80 Bzip supported: 1
+2021/03/14-07:53:05.477485 7f6812f47a80 LZ4 supported: 1
+2021/03/14-07:53:05.477486 7f6812f47a80 ZSTDNotFinal supported: 1
+2021/03/14-07:53:05.477490 7f6812f47a80 ZSTD supported: 1
+2021/03/14-07:53:05.477493 7f6812f47a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:53:05.477495 7f6812f47a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:53:05.477587 7f6812f47a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:53:05.477639 7f6812f47a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:53:05.477641 7f6812f47a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:53:05.477642 7f6812f47a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:53:05.477642 7f6812f47a80 Options.compaction_filter: None
+2021/03/14-07:53:05.477643 7f6812f47a80 Options.compaction_filter_factory: None
+2021/03/14-07:53:05.477643 7f6812f47a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:53:05.477644 7f6812f47a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:53:05.477658 7f6812f47a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x25ce520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x25b3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:53:05.477659 7f6812f47a80 Options.write_buffer_size: 134217728
+2021/03/14-07:53:05.477660 7f6812f47a80 Options.max_write_buffer_number: 6
+2021/03/14-07:53:05.477660 7f6812f47a80 Options.compression[0]: NoCompression
+2021/03/14-07:53:05.477661 7f6812f47a80 Options.compression[1]: NoCompression
+2021/03/14-07:53:05.477662 7f6812f47a80 Options.compression[2]: Snappy
+2021/03/14-07:53:05.477663 7f6812f47a80 Options.compression[3]: Snappy
+2021/03/14-07:53:05.477663 7f6812f47a80 Options.compression[4]: Snappy
+2021/03/14-07:53:05.477664 7f6812f47a80 Options.compression[5]: Snappy
+2021/03/14-07:53:05.477664 7f6812f47a80 Options.compression[6]: Snappy
+2021/03/14-07:53:05.477665 7f6812f47a80 Options.bottommost_compression: Disabled
+2021/03/14-07:53:05.477666 7f6812f47a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:53:05.477666 7f6812f47a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:53:05.477667 7f6812f47a80 Options.num_levels: 7
+2021/03/14-07:53:05.477667 7f6812f47a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:53:05.477668 7f6812f47a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:53:05.477669 7f6812f47a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:53:05.477669 7f6812f47a80 Options.compression_opts.level: -1
+2021/03/14-07:53:05.477670 7f6812f47a80 Options.compression_opts.strategy: 0
+2021/03/14-07:53:05.477671 7f6812f47a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:53:05.477671 7f6812f47a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:53:05.477672 7f6812f47a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:53:05.477672 7f6812f47a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:53:05.477673 7f6812f47a80 Options.target_file_size_base: 67108864
+2021/03/14-07:53:05.477673 7f6812f47a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:53:05.477674 7f6812f47a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:53:05.477675 7f6812f47a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:53:05.477675 7f6812f47a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:53:05.477677 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:53:05.477685 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:53:05.477685 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:53:05.477686 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:53:05.477686 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:53:05.477687 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:53:05.477688 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:53:05.477688 7f6812f47a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:53:05.477689 7f6812f47a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:53:05.477689 7f6812f47a80 Options.arena_block_size: 16777216
+2021/03/14-07:53:05.477690 7f6812f47a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:53:05.477691 7f6812f47a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:53:05.477691 7f6812f47a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:53:05.477692 7f6812f47a80 Options.disable_auto_compactions: 0
+2021/03/14-07:53:05.477694 7f6812f47a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:53:05.477694 7f6812f47a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:53:05.477695 7f6812f47a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:53:05.477696 7f6812f47a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:53:05.477696 7f6812f47a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:53:05.477697 7f6812f47a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:53:05.477697 7f6812f47a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:53:05.477698 7f6812f47a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:53:05.477699 7f6812f47a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:53:05.477700 7f6812f47a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:53:05.477700 7f6812f47a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:53:05.477701 7f6812f47a80 Options.table_properties_collectors:
+2021/03/14-07:53:05.477701 7f6812f47a80 Options.inplace_update_support: 0
+2021/03/14-07:53:05.477702 7f6812f47a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:53:05.477702 7f6812f47a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:53:05.477703 7f6812f47a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:53:05.477704 7f6812f47a80 Options.bloom_locality: 0
+2021/03/14-07:53:05.477704 7f6812f47a80 Options.max_successive_merges: 0
+2021/03/14-07:53:05.477705 7f6812f47a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:53:05.477706 7f6812f47a80 Options.paranoid_file_checks: 0
+2021/03/14-07:53:05.477706 7f6812f47a80 Options.force_consistency_checks: 0
+2021/03/14-07:53:05.477707 7f6812f47a80 Options.report_bg_io_stats: 0
+2021/03/14-07:53:05.478090 7f6812f47a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:53:05.478093 7f6812f47a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:53:05.478264 7f6812f47a80 EVENT_LOG_v1 {"time_micros": 1615704785478254, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:53:05.478270 7f6812f47a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:53:06.174438 7f6812f47a80 EVENT_LOG_v1 {"time_micros": 1615704786174434, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705171568001 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705171568001
new file mode 100644
index 0000000..371b76d
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705171568001
@@ -0,0 +1,186 @@
+2021/03/14-07:53:06.187536 7f6812f47a80 RocksDB version: 5.11.3
+2021/03/14-07:53:06.187591 7f6812f47a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:53:06.187592 7f6812f47a80 Compile date Mar 13 2021
+2021/03/14-07:53:06.187597 7f6812f47a80 DB SUMMARY
+2021/03/14-07:53:06.187766 7f6812f47a80 CURRENT file: CURRENT
+2021/03/14-07:53:06.187767 7f6812f47a80 IDENTITY file: IDENTITY
+2021/03/14-07:53:06.187783 7f6812f47a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:53:06.187785 7f6812f47a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:53:06.187785 7f6812f47a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:53:06.187791 7f6812f47a80 Options.error_if_exists: 0
+2021/03/14-07:53:06.187792 7f6812f47a80 Options.create_if_missing: 1
+2021/03/14-07:53:06.187793 7f6812f47a80 Options.paranoid_checks: 1
+2021/03/14-07:53:06.187793 7f6812f47a80 Options.env: 0x7f6813901080
+2021/03/14-07:53:06.187794 7f6812f47a80 Options.info_log: 0x25d6ca0
+2021/03/14-07:53:06.187795 7f6812f47a80 Options.max_file_opening_threads: 16
+2021/03/14-07:53:06.187795 7f6812f47a80 Options.statistics: (nil)
+2021/03/14-07:53:06.187796 7f6812f47a80 Options.use_fsync: 0
+2021/03/14-07:53:06.187796 7f6812f47a80 Options.max_log_file_size: 0
+2021/03/14-07:53:06.187797 7f6812f47a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:53:06.187798 7f6812f47a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:53:06.187798 7f6812f47a80 Options.keep_log_file_num: 1000
+2021/03/14-07:53:06.187799 7f6812f47a80 Options.recycle_log_file_num: 0
+2021/03/14-07:53:06.187800 7f6812f47a80 Options.allow_fallocate: 1
+2021/03/14-07:53:06.187800 7f6812f47a80 Options.allow_mmap_reads: 0
+2021/03/14-07:53:06.187801 7f6812f47a80 Options.allow_mmap_writes: 0
+2021/03/14-07:53:06.187801 7f6812f47a80 Options.use_direct_reads: 0
+2021/03/14-07:53:06.187802 7f6812f47a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:53:06.187802 7f6812f47a80 Options.create_missing_column_families: 0
+2021/03/14-07:53:06.187803 7f6812f47a80 Options.db_log_dir:
+2021/03/14-07:53:06.187803 7f6812f47a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:53:06.187804 7f6812f47a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:53:06.187805 7f6812f47a80 Options.max_subcompactions: 1
+2021/03/14-07:53:06.187805 7f6812f47a80 Options.max_background_flushes: -1
+2021/03/14-07:53:06.187806 7f6812f47a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:53:06.187807 7f6812f47a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:53:06.187807 7f6812f47a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:53:06.187808 7f6812f47a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:53:06.187808 7f6812f47a80 Options.advise_random_on_open: 1
+2021/03/14-07:53:06.187809 7f6812f47a80 Options.db_write_buffer_size: 0
+2021/03/14-07:53:06.187809 7f6812f47a80 Options.write_buffer_manager: 0x25beb90
+2021/03/14-07:53:06.187810 7f6812f47a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:53:06.187811 7f6812f47a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:53:06.187811 7f6812f47a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:53:06.187812 7f6812f47a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:53:06.187812 7f6812f47a80 Options.rate_limiter: (nil)
+2021/03/14-07:53:06.187814 7f6812f47a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:53:06.187822 7f6812f47a80 Options.wal_recovery_mode: 2
+2021/03/14-07:53:06.187823 7f6812f47a80 Options.enable_thread_tracking: 0
+2021/03/14-07:53:06.187823 7f6812f47a80 Options.enable_pipelined_write: 0
+2021/03/14-07:53:06.187824 7f6812f47a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:53:06.187824 7f6812f47a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:53:06.187825 7f6812f47a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:53:06.187825 7f6812f47a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:53:06.187826 7f6812f47a80 Options.row_cache: None
+2021/03/14-07:53:06.187827 7f6812f47a80 Options.wal_filter: None
+2021/03/14-07:53:06.187827 7f6812f47a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:53:06.187828 7f6812f47a80 Options.allow_ingest_behind: 0
+2021/03/14-07:53:06.187828 7f6812f47a80 Options.preserve_deletes: 0
+2021/03/14-07:53:06.187829 7f6812f47a80 Options.two_write_queues: 0
+2021/03/14-07:53:06.187829 7f6812f47a80 Options.manual_wal_flush: 0
+2021/03/14-07:53:06.187831 7f6812f47a80 Options.max_background_jobs: 16
+2021/03/14-07:53:06.187831 7f6812f47a80 Options.max_background_compactions: -1
+2021/03/14-07:53:06.187832 7f6812f47a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:53:06.187832 7f6812f47a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:53:06.187833 7f6812f47a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:53:06.187834 7f6812f47a80 Options.max_total_wal_size: 0
+2021/03/14-07:53:06.187834 7f6812f47a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:53:06.187835 7f6812f47a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:53:06.187835 7f6812f47a80 Options.max_open_files: -1
+2021/03/14-07:53:06.187836 7f6812f47a80 Options.bytes_per_sync: 0
+2021/03/14-07:53:06.187837 7f6812f47a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:53:06.187837 7f6812f47a80 Options.compaction_readahead_size: 0
+2021/03/14-07:53:06.187838 7f6812f47a80 Compression algorithms supported:
+2021/03/14-07:53:06.187838 7f6812f47a80 Snappy supported: 1
+2021/03/14-07:53:06.187839 7f6812f47a80 Zlib supported: 1
+2021/03/14-07:53:06.187839 7f6812f47a80 Bzip supported: 1
+2021/03/14-07:53:06.187840 7f6812f47a80 LZ4 supported: 1
+2021/03/14-07:53:06.187841 7f6812f47a80 ZSTDNotFinal supported: 1
+2021/03/14-07:53:06.187845 7f6812f47a80 ZSTD supported: 1
+2021/03/14-07:53:06.187848 7f6812f47a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:53:06.187849 7f6812f47a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:53:06.187942 7f6812f47a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:53:06.187994 7f6812f47a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:53:06.187995 7f6812f47a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:53:06.187996 7f6812f47a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:53:06.187997 7f6812f47a80 Options.compaction_filter: None
+2021/03/14-07:53:06.187997 7f6812f47a80 Options.compaction_filter_factory: None
+2021/03/14-07:53:06.187998 7f6812f47a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:53:06.187999 7f6812f47a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:53:06.188012 7f6812f47a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x25ce520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x25b3c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:53:06.188013 7f6812f47a80 Options.write_buffer_size: 134217728
+2021/03/14-07:53:06.188014 7f6812f47a80 Options.max_write_buffer_number: 6
+2021/03/14-07:53:06.188015 7f6812f47a80 Options.compression[0]: NoCompression
+2021/03/14-07:53:06.188015 7f6812f47a80 Options.compression[1]: NoCompression
+2021/03/14-07:53:06.188016 7f6812f47a80 Options.compression[2]: Snappy
+2021/03/14-07:53:06.188017 7f6812f47a80 Options.compression[3]: Snappy
+2021/03/14-07:53:06.188017 7f6812f47a80 Options.compression[4]: Snappy
+2021/03/14-07:53:06.188018 7f6812f47a80 Options.compression[5]: Snappy
+2021/03/14-07:53:06.188018 7f6812f47a80 Options.compression[6]: Snappy
+2021/03/14-07:53:06.188019 7f6812f47a80 Options.bottommost_compression: Disabled
+2021/03/14-07:53:06.188020 7f6812f47a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:53:06.188020 7f6812f47a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:53:06.188021 7f6812f47a80 Options.num_levels: 7
+2021/03/14-07:53:06.188022 7f6812f47a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:53:06.188022 7f6812f47a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:53:06.188023 7f6812f47a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:53:06.188023 7f6812f47a80 Options.compression_opts.level: -1
+2021/03/14-07:53:06.188024 7f6812f47a80 Options.compression_opts.strategy: 0
+2021/03/14-07:53:06.188025 7f6812f47a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:53:06.188025 7f6812f47a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:53:06.188026 7f6812f47a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:53:06.188026 7f6812f47a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:53:06.188027 7f6812f47a80 Options.target_file_size_base: 67108864
+2021/03/14-07:53:06.188028 7f6812f47a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:53:06.188028 7f6812f47a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:53:06.188029 7f6812f47a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:53:06.188029 7f6812f47a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:53:06.188031 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:53:06.188039 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:53:06.188039 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:53:06.188040 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:53:06.188040 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:53:06.188041 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:53:06.188042 7f6812f47a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:53:06.188042 7f6812f47a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:53:06.188043 7f6812f47a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:53:06.188043 7f6812f47a80 Options.arena_block_size: 16777216
+2021/03/14-07:53:06.188044 7f6812f47a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:53:06.188045 7f6812f47a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:53:06.188045 7f6812f47a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:53:06.188046 7f6812f47a80 Options.disable_auto_compactions: 0
+2021/03/14-07:53:06.188048 7f6812f47a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:53:06.188048 7f6812f47a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:53:06.188049 7f6812f47a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:53:06.188050 7f6812f47a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:53:06.188050 7f6812f47a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:53:06.188051 7f6812f47a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:53:06.188051 7f6812f47a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:53:06.188052 7f6812f47a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:53:06.188053 7f6812f47a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:53:06.188054 7f6812f47a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:53:06.188054 7f6812f47a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:53:06.188055 7f6812f47a80 Options.table_properties_collectors:
+2021/03/14-07:53:06.188056 7f6812f47a80 Options.inplace_update_support: 0
+2021/03/14-07:53:06.188056 7f6812f47a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:53:06.188057 7f6812f47a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:53:06.188058 7f6812f47a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:53:06.188058 7f6812f47a80 Options.bloom_locality: 0
+2021/03/14-07:53:06.188059 7f6812f47a80 Options.max_successive_merges: 0
+2021/03/14-07:53:06.188060 7f6812f47a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:53:06.188060 7f6812f47a80 Options.paranoid_file_checks: 0
+2021/03/14-07:53:06.188061 7f6812f47a80 Options.force_consistency_checks: 0
+2021/03/14-07:53:06.188061 7f6812f47a80 Options.report_bg_io_stats: 0
+2021/03/14-07:53:06.188425 7f6812f47a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:53:06.188427 7f6812f47a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:53:06.188591 7f6812f47a80 EVENT_LOG_v1 {"time_micros": 1615704786188580, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:53:06.188596 7f6812f47a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:53:06.881702 7f6812f47a80 EVENT_LOG_v1 {"time_micros": 1615704786881699, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705172350926 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705172350926
new file mode 100644
index 0000000..326cd61
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705172350926
@@ -0,0 +1,186 @@
+2021/03/14-07:59:31.568499 7f6190383a80 RocksDB version: 5.11.3
+2021/03/14-07:59:31.568560 7f6190383a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:59:31.568562 7f6190383a80 Compile date Mar 13 2021
+2021/03/14-07:59:31.568568 7f6190383a80 DB SUMMARY
+2021/03/14-07:59:31.568749 7f6190383a80 CURRENT file: CURRENT
+2021/03/14-07:59:31.568750 7f6190383a80 IDENTITY file: IDENTITY
+2021/03/14-07:59:31.568768 7f6190383a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:59:31.568769 7f6190383a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:59:31.568770 7f6190383a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:59:31.568776 7f6190383a80 Options.error_if_exists: 0
+2021/03/14-07:59:31.568777 7f6190383a80 Options.create_if_missing: 1
+2021/03/14-07:59:31.568777 7f6190383a80 Options.paranoid_checks: 1
+2021/03/14-07:59:31.568778 7f6190383a80 Options.env: 0x7f6190d3d080
+2021/03/14-07:59:31.568779 7f6190383a80 Options.info_log: 0x10d4fa0
+2021/03/14-07:59:31.568779 7f6190383a80 Options.max_file_opening_threads: 16
+2021/03/14-07:59:31.568780 7f6190383a80 Options.statistics: (nil)
+2021/03/14-07:59:31.568781 7f6190383a80 Options.use_fsync: 0
+2021/03/14-07:59:31.568781 7f6190383a80 Options.max_log_file_size: 0
+2021/03/14-07:59:31.568782 7f6190383a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:59:31.568783 7f6190383a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:59:31.568783 7f6190383a80 Options.keep_log_file_num: 1000
+2021/03/14-07:59:31.568784 7f6190383a80 Options.recycle_log_file_num: 0
+2021/03/14-07:59:31.568785 7f6190383a80 Options.allow_fallocate: 1
+2021/03/14-07:59:31.568785 7f6190383a80 Options.allow_mmap_reads: 0
+2021/03/14-07:59:31.568786 7f6190383a80 Options.allow_mmap_writes: 0
+2021/03/14-07:59:31.568786 7f6190383a80 Options.use_direct_reads: 0
+2021/03/14-07:59:31.568787 7f6190383a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:59:31.568787 7f6190383a80 Options.create_missing_column_families: 0
+2021/03/14-07:59:31.568788 7f6190383a80 Options.db_log_dir:
+2021/03/14-07:59:31.568789 7f6190383a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:59:31.568789 7f6190383a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:59:31.568790 7f6190383a80 Options.max_subcompactions: 1
+2021/03/14-07:59:31.568791 7f6190383a80 Options.max_background_flushes: -1
+2021/03/14-07:59:31.568791 7f6190383a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:59:31.568792 7f6190383a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:59:31.568792 7f6190383a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:59:31.568793 7f6190383a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:59:31.568794 7f6190383a80 Options.advise_random_on_open: 1
+2021/03/14-07:59:31.568794 7f6190383a80 Options.db_write_buffer_size: 0
+2021/03/14-07:59:31.568795 7f6190383a80 Options.write_buffer_manager: 0x10bce90
+2021/03/14-07:59:31.568796 7f6190383a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:59:31.568796 7f6190383a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:59:31.568797 7f6190383a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:59:31.568797 7f6190383a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:59:31.568798 7f6190383a80 Options.rate_limiter: (nil)
+2021/03/14-07:59:31.568799 7f6190383a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:59:31.568807 7f6190383a80 Options.wal_recovery_mode: 2
+2021/03/14-07:59:31.568808 7f6190383a80 Options.enable_thread_tracking: 0
+2021/03/14-07:59:31.568808 7f6190383a80 Options.enable_pipelined_write: 0
+2021/03/14-07:59:31.568809 7f6190383a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:59:31.568809 7f6190383a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:59:31.568810 7f6190383a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:59:31.568811 7f6190383a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:59:31.568811 7f6190383a80 Options.row_cache: None
+2021/03/14-07:59:31.568812 7f6190383a80 Options.wal_filter: None
+2021/03/14-07:59:31.568813 7f6190383a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:59:31.568813 7f6190383a80 Options.allow_ingest_behind: 0
+2021/03/14-07:59:31.568814 7f6190383a80 Options.preserve_deletes: 0
+2021/03/14-07:59:31.568814 7f6190383a80 Options.two_write_queues: 0
+2021/03/14-07:59:31.568815 7f6190383a80 Options.manual_wal_flush: 0
+2021/03/14-07:59:31.568816 7f6190383a80 Options.max_background_jobs: 16
+2021/03/14-07:59:31.568817 7f6190383a80 Options.max_background_compactions: -1
+2021/03/14-07:59:31.568817 7f6190383a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:59:31.568818 7f6190383a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:59:31.568819 7f6190383a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:59:31.568819 7f6190383a80 Options.max_total_wal_size: 0
+2021/03/14-07:59:31.568820 7f6190383a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:59:31.568821 7f6190383a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:59:31.568821 7f6190383a80 Options.max_open_files: -1
+2021/03/14-07:59:31.568822 7f6190383a80 Options.bytes_per_sync: 0
+2021/03/14-07:59:31.568822 7f6190383a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:59:31.568823 7f6190383a80 Options.compaction_readahead_size: 0
+2021/03/14-07:59:31.568824 7f6190383a80 Compression algorithms supported:
+2021/03/14-07:59:31.568824 7f6190383a80 Snappy supported: 1
+2021/03/14-07:59:31.568825 7f6190383a80 Zlib supported: 1
+2021/03/14-07:59:31.568826 7f6190383a80 Bzip supported: 1
+2021/03/14-07:59:31.568826 7f6190383a80 LZ4 supported: 1
+2021/03/14-07:59:31.568827 7f6190383a80 ZSTDNotFinal supported: 1
+2021/03/14-07:59:31.568832 7f6190383a80 ZSTD supported: 1
+2021/03/14-07:59:31.568835 7f6190383a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:59:31.568836 7f6190383a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:59:31.568956 7f6190383a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:59:31.569016 7f6190383a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:59:31.569018 7f6190383a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:59:31.569019 7f6190383a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:59:31.569020 7f6190383a80 Options.compaction_filter: None
+2021/03/14-07:59:31.569020 7f6190383a80 Options.compaction_filter_factory: None
+2021/03/14-07:59:31.569021 7f6190383a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:59:31.569022 7f6190383a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:59:31.569040 7f6190383a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10cc820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x10b1f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:59:31.569041 7f6190383a80 Options.write_buffer_size: 134217728
+2021/03/14-07:59:31.569042 7f6190383a80 Options.max_write_buffer_number: 6
+2021/03/14-07:59:31.569043 7f6190383a80 Options.compression[0]: NoCompression
+2021/03/14-07:59:31.569043 7f6190383a80 Options.compression[1]: NoCompression
+2021/03/14-07:59:31.569044 7f6190383a80 Options.compression[2]: Snappy
+2021/03/14-07:59:31.569045 7f6190383a80 Options.compression[3]: Snappy
+2021/03/14-07:59:31.569046 7f6190383a80 Options.compression[4]: Snappy
+2021/03/14-07:59:31.569046 7f6190383a80 Options.compression[5]: Snappy
+2021/03/14-07:59:31.569047 7f6190383a80 Options.compression[6]: Snappy
+2021/03/14-07:59:31.569047 7f6190383a80 Options.bottommost_compression: Disabled
+2021/03/14-07:59:31.569048 7f6190383a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:59:31.569049 7f6190383a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:59:31.569050 7f6190383a80 Options.num_levels: 7
+2021/03/14-07:59:31.569050 7f6190383a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:59:31.569051 7f6190383a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:59:31.569052 7f6190383a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:59:31.569052 7f6190383a80 Options.compression_opts.level: -1
+2021/03/14-07:59:31.569053 7f6190383a80 Options.compression_opts.strategy: 0
+2021/03/14-07:59:31.569054 7f6190383a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:59:31.569054 7f6190383a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:59:31.569055 7f6190383a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:59:31.569055 7f6190383a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:59:31.569056 7f6190383a80 Options.target_file_size_base: 67108864
+2021/03/14-07:59:31.569057 7f6190383a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:59:31.569057 7f6190383a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:59:31.569058 7f6190383a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:59:31.569059 7f6190383a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:59:31.569060 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:59:31.569068 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:59:31.569069 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:59:31.569069 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:59:31.569070 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:59:31.569070 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:59:31.569071 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:59:31.569072 7f6190383a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:59:31.569072 7f6190383a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:59:31.569073 7f6190383a80 Options.arena_block_size: 16777216
+2021/03/14-07:59:31.569074 7f6190383a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:59:31.569074 7f6190383a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:59:31.569075 7f6190383a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:59:31.569076 7f6190383a80 Options.disable_auto_compactions: 0
+2021/03/14-07:59:31.569077 7f6190383a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:59:31.569078 7f6190383a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:59:31.569079 7f6190383a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:59:31.569079 7f6190383a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:59:31.569080 7f6190383a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:59:31.569081 7f6190383a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:59:31.569081 7f6190383a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:59:31.569083 7f6190383a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:59:31.569083 7f6190383a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:59:31.569084 7f6190383a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:59:31.569085 7f6190383a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:59:31.569085 7f6190383a80 Options.table_properties_collectors:
+2021/03/14-07:59:31.569086 7f6190383a80 Options.inplace_update_support: 0
+2021/03/14-07:59:31.569086 7f6190383a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:59:31.569087 7f6190383a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:59:31.569088 7f6190383a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:59:31.569089 7f6190383a80 Options.bloom_locality: 0
+2021/03/14-07:59:31.569089 7f6190383a80 Options.max_successive_merges: 0
+2021/03/14-07:59:31.569090 7f6190383a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:59:31.569090 7f6190383a80 Options.paranoid_file_checks: 0
+2021/03/14-07:59:31.569091 7f6190383a80 Options.force_consistency_checks: 0
+2021/03/14-07:59:31.569092 7f6190383a80 Options.report_bg_io_stats: 0
+2021/03/14-07:59:31.569501 7f6190383a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:59:31.569503 7f6190383a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:59:31.569680 7f6190383a80 EVENT_LOG_v1 {"time_micros": 1615705171569669, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:59:31.569686 7f6190383a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:59:32.338326 7f6190383a80 EVENT_LOG_v1 {"time_micros": 1615705172338323, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705173133246 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705173133246
new file mode 100644
index 0000000..703c545
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705173133246
@@ -0,0 +1,186 @@
+2021/03/14-07:59:32.351381 7f6190383a80 RocksDB version: 5.11.3
+2021/03/14-07:59:32.351437 7f6190383a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:59:32.351439 7f6190383a80 Compile date Mar 13 2021
+2021/03/14-07:59:32.351443 7f6190383a80 DB SUMMARY
+2021/03/14-07:59:32.351617 7f6190383a80 CURRENT file: CURRENT
+2021/03/14-07:59:32.351618 7f6190383a80 IDENTITY file: IDENTITY
+2021/03/14-07:59:32.351635 7f6190383a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:59:32.351636 7f6190383a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:59:32.351637 7f6190383a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:59:32.351643 7f6190383a80 Options.error_if_exists: 0
+2021/03/14-07:59:32.351644 7f6190383a80 Options.create_if_missing: 1
+2021/03/14-07:59:32.351644 7f6190383a80 Options.paranoid_checks: 1
+2021/03/14-07:59:32.351645 7f6190383a80 Options.env: 0x7f6190d3d080
+2021/03/14-07:59:32.351645 7f6190383a80 Options.info_log: 0x10d4fa0
+2021/03/14-07:59:32.351646 7f6190383a80 Options.max_file_opening_threads: 16
+2021/03/14-07:59:32.351647 7f6190383a80 Options.statistics: (nil)
+2021/03/14-07:59:32.351647 7f6190383a80 Options.use_fsync: 0
+2021/03/14-07:59:32.351648 7f6190383a80 Options.max_log_file_size: 0
+2021/03/14-07:59:32.351649 7f6190383a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:59:32.351649 7f6190383a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:59:32.351650 7f6190383a80 Options.keep_log_file_num: 1000
+2021/03/14-07:59:32.351650 7f6190383a80 Options.recycle_log_file_num: 0
+2021/03/14-07:59:32.351651 7f6190383a80 Options.allow_fallocate: 1
+2021/03/14-07:59:32.351652 7f6190383a80 Options.allow_mmap_reads: 0
+2021/03/14-07:59:32.351652 7f6190383a80 Options.allow_mmap_writes: 0
+2021/03/14-07:59:32.351653 7f6190383a80 Options.use_direct_reads: 0
+2021/03/14-07:59:32.351653 7f6190383a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:59:32.351654 7f6190383a80 Options.create_missing_column_families: 0
+2021/03/14-07:59:32.351654 7f6190383a80 Options.db_log_dir:
+2021/03/14-07:59:32.351655 7f6190383a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:59:32.351656 7f6190383a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:59:32.351656 7f6190383a80 Options.max_subcompactions: 1
+2021/03/14-07:59:32.351657 7f6190383a80 Options.max_background_flushes: -1
+2021/03/14-07:59:32.351657 7f6190383a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:59:32.351658 7f6190383a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:59:32.351659 7f6190383a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:59:32.351659 7f6190383a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:59:32.351660 7f6190383a80 Options.advise_random_on_open: 1
+2021/03/14-07:59:32.351660 7f6190383a80 Options.db_write_buffer_size: 0
+2021/03/14-07:59:32.351661 7f6190383a80 Options.write_buffer_manager: 0x10bce90
+2021/03/14-07:59:32.351661 7f6190383a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:59:32.351662 7f6190383a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:59:32.351663 7f6190383a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:59:32.351663 7f6190383a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:59:32.351664 7f6190383a80 Options.rate_limiter: (nil)
+2021/03/14-07:59:32.351665 7f6190383a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:59:32.351672 7f6190383a80 Options.wal_recovery_mode: 2
+2021/03/14-07:59:32.351673 7f6190383a80 Options.enable_thread_tracking: 0
+2021/03/14-07:59:32.351673 7f6190383a80 Options.enable_pipelined_write: 0
+2021/03/14-07:59:32.351674 7f6190383a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:59:32.351675 7f6190383a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:59:32.351675 7f6190383a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:59:32.351676 7f6190383a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:59:32.351676 7f6190383a80 Options.row_cache: None
+2021/03/14-07:59:32.351677 7f6190383a80 Options.wal_filter: None
+2021/03/14-07:59:32.351678 7f6190383a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:59:32.351678 7f6190383a80 Options.allow_ingest_behind: 0
+2021/03/14-07:59:32.351679 7f6190383a80 Options.preserve_deletes: 0
+2021/03/14-07:59:32.351679 7f6190383a80 Options.two_write_queues: 0
+2021/03/14-07:59:32.351680 7f6190383a80 Options.manual_wal_flush: 0
+2021/03/14-07:59:32.351681 7f6190383a80 Options.max_background_jobs: 16
+2021/03/14-07:59:32.351682 7f6190383a80 Options.max_background_compactions: -1
+2021/03/14-07:59:32.351682 7f6190383a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:59:32.351683 7f6190383a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:59:32.351683 7f6190383a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:59:32.351684 7f6190383a80 Options.max_total_wal_size: 0
+2021/03/14-07:59:32.351684 7f6190383a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:59:32.351685 7f6190383a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:59:32.351686 7f6190383a80 Options.max_open_files: -1
+2021/03/14-07:59:32.351686 7f6190383a80 Options.bytes_per_sync: 0
+2021/03/14-07:59:32.351687 7f6190383a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:59:32.351687 7f6190383a80 Options.compaction_readahead_size: 0
+2021/03/14-07:59:32.351688 7f6190383a80 Compression algorithms supported:
+2021/03/14-07:59:32.351688 7f6190383a80 Snappy supported: 1
+2021/03/14-07:59:32.351689 7f6190383a80 Zlib supported: 1
+2021/03/14-07:59:32.351690 7f6190383a80 Bzip supported: 1
+2021/03/14-07:59:32.351690 7f6190383a80 LZ4 supported: 1
+2021/03/14-07:59:32.351691 7f6190383a80 ZSTDNotFinal supported: 1
+2021/03/14-07:59:32.351695 7f6190383a80 ZSTD supported: 1
+2021/03/14-07:59:32.351698 7f6190383a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:59:32.351699 7f6190383a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:59:32.351790 7f6190383a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:59:32.351844 7f6190383a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:59:32.351846 7f6190383a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:59:32.351846 7f6190383a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:59:32.351847 7f6190383a80 Options.compaction_filter: None
+2021/03/14-07:59:32.351848 7f6190383a80 Options.compaction_filter_factory: None
+2021/03/14-07:59:32.351848 7f6190383a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:59:32.351849 7f6190383a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:59:32.351866 7f6190383a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10cc820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x10b1f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:59:32.351867 7f6190383a80 Options.write_buffer_size: 134217728
+2021/03/14-07:59:32.351867 7f6190383a80 Options.max_write_buffer_number: 6
+2021/03/14-07:59:32.351868 7f6190383a80 Options.compression[0]: NoCompression
+2021/03/14-07:59:32.351869 7f6190383a80 Options.compression[1]: NoCompression
+2021/03/14-07:59:32.351870 7f6190383a80 Options.compression[2]: Snappy
+2021/03/14-07:59:32.351870 7f6190383a80 Options.compression[3]: Snappy
+2021/03/14-07:59:32.351871 7f6190383a80 Options.compression[4]: Snappy
+2021/03/14-07:59:32.351871 7f6190383a80 Options.compression[5]: Snappy
+2021/03/14-07:59:32.351872 7f6190383a80 Options.compression[6]: Snappy
+2021/03/14-07:59:32.351873 7f6190383a80 Options.bottommost_compression: Disabled
+2021/03/14-07:59:32.351873 7f6190383a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:59:32.351874 7f6190383a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:59:32.351875 7f6190383a80 Options.num_levels: 7
+2021/03/14-07:59:32.351875 7f6190383a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:59:32.351876 7f6190383a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:59:32.351876 7f6190383a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:59:32.351877 7f6190383a80 Options.compression_opts.level: -1
+2021/03/14-07:59:32.351878 7f6190383a80 Options.compression_opts.strategy: 0
+2021/03/14-07:59:32.351878 7f6190383a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:59:32.351879 7f6190383a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:59:32.351879 7f6190383a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:59:32.351880 7f6190383a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:59:32.351881 7f6190383a80 Options.target_file_size_base: 67108864
+2021/03/14-07:59:32.351881 7f6190383a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:59:32.351882 7f6190383a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:59:32.351883 7f6190383a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:59:32.351883 7f6190383a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:59:32.351885 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:59:32.351893 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:59:32.351893 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:59:32.351894 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:59:32.351895 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:59:32.351895 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:59:32.351896 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:59:32.351896 7f6190383a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:59:32.351897 7f6190383a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:59:32.351897 7f6190383a80 Options.arena_block_size: 16777216
+2021/03/14-07:59:32.351898 7f6190383a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:59:32.351899 7f6190383a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:59:32.351899 7f6190383a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:59:32.351900 7f6190383a80 Options.disable_auto_compactions: 0
+2021/03/14-07:59:32.351902 7f6190383a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:59:32.351902 7f6190383a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:59:32.351903 7f6190383a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:59:32.351904 7f6190383a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:59:32.351904 7f6190383a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:59:32.351905 7f6190383a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:59:32.351905 7f6190383a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:59:32.351906 7f6190383a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:59:32.351907 7f6190383a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:59:32.351908 7f6190383a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:59:32.351908 7f6190383a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:59:32.351909 7f6190383a80 Options.table_properties_collectors:
+2021/03/14-07:59:32.351909 7f6190383a80 Options.inplace_update_support: 0
+2021/03/14-07:59:32.351910 7f6190383a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:59:32.351910 7f6190383a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:59:32.351911 7f6190383a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:59:32.351912 7f6190383a80 Options.bloom_locality: 0
+2021/03/14-07:59:32.351913 7f6190383a80 Options.max_successive_merges: 0
+2021/03/14-07:59:32.351913 7f6190383a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:59:32.351914 7f6190383a80 Options.paranoid_file_checks: 0
+2021/03/14-07:59:32.351914 7f6190383a80 Options.force_consistency_checks: 0
+2021/03/14-07:59:32.351915 7f6190383a80 Options.report_bg_io_stats: 0
+2021/03/14-07:59:32.352292 7f6190383a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:59:32.352294 7f6190383a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:59:32.352462 7f6190383a80 EVENT_LOG_v1 {"time_micros": 1615705172352451, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:59:32.352467 7f6190383a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:59:33.120214 7f6190383a80 EVENT_LOG_v1 {"time_micros": 1615705173120210, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705173907524 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705173907524
new file mode 100644
index 0000000..f21ebcb
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705173907524
@@ -0,0 +1,186 @@
+2021/03/14-07:59:33.133675 7f6190383a80 RocksDB version: 5.11.3
+2021/03/14-07:59:33.133732 7f6190383a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:59:33.133733 7f6190383a80 Compile date Mar 13 2021
+2021/03/14-07:59:33.133739 7f6190383a80 DB SUMMARY
+2021/03/14-07:59:33.133909 7f6190383a80 CURRENT file: CURRENT
+2021/03/14-07:59:33.133910 7f6190383a80 IDENTITY file: IDENTITY
+2021/03/14-07:59:33.133926 7f6190383a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:59:33.133927 7f6190383a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:59:33.133928 7f6190383a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:59:33.133934 7f6190383a80 Options.error_if_exists: 0
+2021/03/14-07:59:33.133935 7f6190383a80 Options.create_if_missing: 1
+2021/03/14-07:59:33.133935 7f6190383a80 Options.paranoid_checks: 1
+2021/03/14-07:59:33.133936 7f6190383a80 Options.env: 0x7f6190d3d080
+2021/03/14-07:59:33.133936 7f6190383a80 Options.info_log: 0x10d4fa0
+2021/03/14-07:59:33.133937 7f6190383a80 Options.max_file_opening_threads: 16
+2021/03/14-07:59:33.133938 7f6190383a80 Options.statistics: (nil)
+2021/03/14-07:59:33.133938 7f6190383a80 Options.use_fsync: 0
+2021/03/14-07:59:33.133939 7f6190383a80 Options.max_log_file_size: 0
+2021/03/14-07:59:33.133939 7f6190383a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:59:33.133940 7f6190383a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:59:33.133941 7f6190383a80 Options.keep_log_file_num: 1000
+2021/03/14-07:59:33.133941 7f6190383a80 Options.recycle_log_file_num: 0
+2021/03/14-07:59:33.133942 7f6190383a80 Options.allow_fallocate: 1
+2021/03/14-07:59:33.133942 7f6190383a80 Options.allow_mmap_reads: 0
+2021/03/14-07:59:33.133943 7f6190383a80 Options.allow_mmap_writes: 0
+2021/03/14-07:59:33.133943 7f6190383a80 Options.use_direct_reads: 0
+2021/03/14-07:59:33.133944 7f6190383a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:59:33.133945 7f6190383a80 Options.create_missing_column_families: 0
+2021/03/14-07:59:33.133945 7f6190383a80 Options.db_log_dir:
+2021/03/14-07:59:33.133946 7f6190383a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:59:33.133946 7f6190383a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:59:33.133947 7f6190383a80 Options.max_subcompactions: 1
+2021/03/14-07:59:33.133947 7f6190383a80 Options.max_background_flushes: -1
+2021/03/14-07:59:33.133948 7f6190383a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:59:33.133949 7f6190383a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:59:33.133949 7f6190383a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:59:33.133950 7f6190383a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:59:33.133950 7f6190383a80 Options.advise_random_on_open: 1
+2021/03/14-07:59:33.133951 7f6190383a80 Options.db_write_buffer_size: 0
+2021/03/14-07:59:33.133951 7f6190383a80 Options.write_buffer_manager: 0x10bce90
+2021/03/14-07:59:33.133952 7f6190383a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:59:33.133953 7f6190383a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:59:33.133953 7f6190383a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:59:33.133954 7f6190383a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:59:33.133954 7f6190383a80 Options.rate_limiter: (nil)
+2021/03/14-07:59:33.133955 7f6190383a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:59:33.133964 7f6190383a80 Options.wal_recovery_mode: 2
+2021/03/14-07:59:33.133964 7f6190383a80 Options.enable_thread_tracking: 0
+2021/03/14-07:59:33.133965 7f6190383a80 Options.enable_pipelined_write: 0
+2021/03/14-07:59:33.133965 7f6190383a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:59:33.133966 7f6190383a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:59:33.133966 7f6190383a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:59:33.133967 7f6190383a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:59:33.133968 7f6190383a80 Options.row_cache: None
+2021/03/14-07:59:33.133968 7f6190383a80 Options.wal_filter: None
+2021/03/14-07:59:33.133969 7f6190383a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:59:33.133969 7f6190383a80 Options.allow_ingest_behind: 0
+2021/03/14-07:59:33.133970 7f6190383a80 Options.preserve_deletes: 0
+2021/03/14-07:59:33.133970 7f6190383a80 Options.two_write_queues: 0
+2021/03/14-07:59:33.133971 7f6190383a80 Options.manual_wal_flush: 0
+2021/03/14-07:59:33.133972 7f6190383a80 Options.max_background_jobs: 16
+2021/03/14-07:59:33.133973 7f6190383a80 Options.max_background_compactions: -1
+2021/03/14-07:59:33.133973 7f6190383a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:59:33.133974 7f6190383a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:59:33.133974 7f6190383a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:59:33.133975 7f6190383a80 Options.max_total_wal_size: 0
+2021/03/14-07:59:33.133975 7f6190383a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:59:33.133976 7f6190383a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:59:33.133977 7f6190383a80 Options.max_open_files: -1
+2021/03/14-07:59:33.133977 7f6190383a80 Options.bytes_per_sync: 0
+2021/03/14-07:59:33.133978 7f6190383a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:59:33.133978 7f6190383a80 Options.compaction_readahead_size: 0
+2021/03/14-07:59:33.133979 7f6190383a80 Compression algorithms supported:
+2021/03/14-07:59:33.133979 7f6190383a80 Snappy supported: 1
+2021/03/14-07:59:33.133980 7f6190383a80 Zlib supported: 1
+2021/03/14-07:59:33.133981 7f6190383a80 Bzip supported: 1
+2021/03/14-07:59:33.133981 7f6190383a80 LZ4 supported: 1
+2021/03/14-07:59:33.133982 7f6190383a80 ZSTDNotFinal supported: 1
+2021/03/14-07:59:33.133986 7f6190383a80 ZSTD supported: 1
+2021/03/14-07:59:33.133989 7f6190383a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:59:33.133990 7f6190383a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:59:33.134081 7f6190383a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:59:33.134134 7f6190383a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:59:33.134136 7f6190383a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:59:33.134137 7f6190383a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:59:33.134138 7f6190383a80 Options.compaction_filter: None
+2021/03/14-07:59:33.134138 7f6190383a80 Options.compaction_filter_factory: None
+2021/03/14-07:59:33.134139 7f6190383a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:59:33.134139 7f6190383a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:59:33.134156 7f6190383a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10cc820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x10b1f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:59:33.134157 7f6190383a80 Options.write_buffer_size: 134217728
+2021/03/14-07:59:33.134158 7f6190383a80 Options.max_write_buffer_number: 6
+2021/03/14-07:59:33.134158 7f6190383a80 Options.compression[0]: NoCompression
+2021/03/14-07:59:33.134159 7f6190383a80 Options.compression[1]: NoCompression
+2021/03/14-07:59:33.134160 7f6190383a80 Options.compression[2]: Snappy
+2021/03/14-07:59:33.134160 7f6190383a80 Options.compression[3]: Snappy
+2021/03/14-07:59:33.134161 7f6190383a80 Options.compression[4]: Snappy
+2021/03/14-07:59:33.134161 7f6190383a80 Options.compression[5]: Snappy
+2021/03/14-07:59:33.134162 7f6190383a80 Options.compression[6]: Snappy
+2021/03/14-07:59:33.134163 7f6190383a80 Options.bottommost_compression: Disabled
+2021/03/14-07:59:33.134163 7f6190383a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:59:33.134164 7f6190383a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:59:33.134165 7f6190383a80 Options.num_levels: 7
+2021/03/14-07:59:33.134165 7f6190383a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:59:33.134166 7f6190383a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:59:33.134166 7f6190383a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:59:33.134167 7f6190383a80 Options.compression_opts.level: -1
+2021/03/14-07:59:33.134168 7f6190383a80 Options.compression_opts.strategy: 0
+2021/03/14-07:59:33.134168 7f6190383a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:59:33.134169 7f6190383a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:59:33.134169 7f6190383a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:59:33.134170 7f6190383a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:59:33.134171 7f6190383a80 Options.target_file_size_base: 67108864
+2021/03/14-07:59:33.134171 7f6190383a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:59:33.134172 7f6190383a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:59:33.134172 7f6190383a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:59:33.134173 7f6190383a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:59:33.134174 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:59:33.134182 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:59:33.134182 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:59:33.134183 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:59:33.134184 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:59:33.134184 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:59:33.134185 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:59:33.134185 7f6190383a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:59:33.134186 7f6190383a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:59:33.134186 7f6190383a80 Options.arena_block_size: 16777216
+2021/03/14-07:59:33.134187 7f6190383a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:59:33.134188 7f6190383a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:59:33.134188 7f6190383a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:59:33.134189 7f6190383a80 Options.disable_auto_compactions: 0
+2021/03/14-07:59:33.134191 7f6190383a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:59:33.134191 7f6190383a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:59:33.134192 7f6190383a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:59:33.134193 7f6190383a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:59:33.134193 7f6190383a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:59:33.134194 7f6190383a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:59:33.134194 7f6190383a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:59:33.134195 7f6190383a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:59:33.134196 7f6190383a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:59:33.134196 7f6190383a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:59:33.134197 7f6190383a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:59:33.134198 7f6190383a80 Options.table_properties_collectors:
+2021/03/14-07:59:33.134198 7f6190383a80 Options.inplace_update_support: 0
+2021/03/14-07:59:33.134199 7f6190383a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:59:33.134199 7f6190383a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:59:33.134200 7f6190383a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:59:33.134201 7f6190383a80 Options.bloom_locality: 0
+2021/03/14-07:59:33.134201 7f6190383a80 Options.max_successive_merges: 0
+2021/03/14-07:59:33.134202 7f6190383a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:59:33.134202 7f6190383a80 Options.paranoid_file_checks: 0
+2021/03/14-07:59:33.134203 7f6190383a80 Options.force_consistency_checks: 0
+2021/03/14-07:59:33.134203 7f6190383a80 Options.report_bg_io_stats: 0
+2021/03/14-07:59:33.134621 7f6190383a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:59:33.134623 7f6190383a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:59:33.134789 7f6190383a80 EVENT_LOG_v1 {"time_micros": 1615705173134778, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:59:33.134794 7f6190383a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:59:33.894642 7f6190383a80 EVENT_LOG_v1 {"time_micros": 1615705173894639, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705507842056 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705507842056
new file mode 100644
index 0000000..a86c479
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705507842056
@@ -0,0 +1,186 @@
+2021/03/14-07:59:33.907990 7f6190383a80 RocksDB version: 5.11.3
+2021/03/14-07:59:33.908048 7f6190383a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-07:59:33.908050 7f6190383a80 Compile date Mar 13 2021
+2021/03/14-07:59:33.908055 7f6190383a80 DB SUMMARY
+2021/03/14-07:59:33.908235 7f6190383a80 CURRENT file: CURRENT
+2021/03/14-07:59:33.908236 7f6190383a80 IDENTITY file: IDENTITY
+2021/03/14-07:59:33.908260 7f6190383a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-07:59:33.908261 7f6190383a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-07:59:33.908262 7f6190383a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-07:59:33.908268 7f6190383a80 Options.error_if_exists: 0
+2021/03/14-07:59:33.908269 7f6190383a80 Options.create_if_missing: 1
+2021/03/14-07:59:33.908270 7f6190383a80 Options.paranoid_checks: 1
+2021/03/14-07:59:33.908270 7f6190383a80 Options.env: 0x7f6190d3d080
+2021/03/14-07:59:33.908271 7f6190383a80 Options.info_log: 0x10d4fa0
+2021/03/14-07:59:33.908272 7f6190383a80 Options.max_file_opening_threads: 16
+2021/03/14-07:59:33.908272 7f6190383a80 Options.statistics: (nil)
+2021/03/14-07:59:33.908273 7f6190383a80 Options.use_fsync: 0
+2021/03/14-07:59:33.908274 7f6190383a80 Options.max_log_file_size: 0
+2021/03/14-07:59:33.908274 7f6190383a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-07:59:33.908275 7f6190383a80 Options.log_file_time_to_roll: 0
+2021/03/14-07:59:33.908275 7f6190383a80 Options.keep_log_file_num: 1000
+2021/03/14-07:59:33.908276 7f6190383a80 Options.recycle_log_file_num: 0
+2021/03/14-07:59:33.908277 7f6190383a80 Options.allow_fallocate: 1
+2021/03/14-07:59:33.908277 7f6190383a80 Options.allow_mmap_reads: 0
+2021/03/14-07:59:33.908278 7f6190383a80 Options.allow_mmap_writes: 0
+2021/03/14-07:59:33.908278 7f6190383a80 Options.use_direct_reads: 0
+2021/03/14-07:59:33.908279 7f6190383a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-07:59:33.908280 7f6190383a80 Options.create_missing_column_families: 0
+2021/03/14-07:59:33.908280 7f6190383a80 Options.db_log_dir:
+2021/03/14-07:59:33.908281 7f6190383a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-07:59:33.908281 7f6190383a80 Options.table_cache_numshardbits: 6
+2021/03/14-07:59:33.908282 7f6190383a80 Options.max_subcompactions: 1
+2021/03/14-07:59:33.908283 7f6190383a80 Options.max_background_flushes: -1
+2021/03/14-07:59:33.908283 7f6190383a80 Options.WAL_ttl_seconds: 0
+2021/03/14-07:59:33.908284 7f6190383a80 Options.WAL_size_limit_MB: 0
+2021/03/14-07:59:33.908284 7f6190383a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-07:59:33.908285 7f6190383a80 Options.is_fd_close_on_exec: 1
+2021/03/14-07:59:33.908286 7f6190383a80 Options.advise_random_on_open: 1
+2021/03/14-07:59:33.908286 7f6190383a80 Options.db_write_buffer_size: 0
+2021/03/14-07:59:33.908287 7f6190383a80 Options.write_buffer_manager: 0x10bce90
+2021/03/14-07:59:33.908287 7f6190383a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-07:59:33.908288 7f6190383a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-07:59:33.908289 7f6190383a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-07:59:33.908289 7f6190383a80 Options.use_adaptive_mutex: 0
+2021/03/14-07:59:33.908290 7f6190383a80 Options.rate_limiter: (nil)
+2021/03/14-07:59:33.908291 7f6190383a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-07:59:33.908301 7f6190383a80 Options.wal_recovery_mode: 2
+2021/03/14-07:59:33.908301 7f6190383a80 Options.enable_thread_tracking: 0
+2021/03/14-07:59:33.908302 7f6190383a80 Options.enable_pipelined_write: 0
+2021/03/14-07:59:33.908302 7f6190383a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-07:59:33.908303 7f6190383a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-07:59:33.908304 7f6190383a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-07:59:33.908304 7f6190383a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-07:59:33.908305 7f6190383a80 Options.row_cache: None
+2021/03/14-07:59:33.908305 7f6190383a80 Options.wal_filter: None
+2021/03/14-07:59:33.908306 7f6190383a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-07:59:33.908307 7f6190383a80 Options.allow_ingest_behind: 0
+2021/03/14-07:59:33.908307 7f6190383a80 Options.preserve_deletes: 0
+2021/03/14-07:59:33.908308 7f6190383a80 Options.two_write_queues: 0
+2021/03/14-07:59:33.908308 7f6190383a80 Options.manual_wal_flush: 0
+2021/03/14-07:59:33.908309 7f6190383a80 Options.max_background_jobs: 16
+2021/03/14-07:59:33.908310 7f6190383a80 Options.max_background_compactions: -1
+2021/03/14-07:59:33.908311 7f6190383a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-07:59:33.908311 7f6190383a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-07:59:33.908312 7f6190383a80 Options.delayed_write_rate : 16777216
+2021/03/14-07:59:33.908312 7f6190383a80 Options.max_total_wal_size: 0
+2021/03/14-07:59:33.908313 7f6190383a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-07:59:33.908314 7f6190383a80 Options.stats_dump_period_sec: 600
+2021/03/14-07:59:33.908314 7f6190383a80 Options.max_open_files: -1
+2021/03/14-07:59:33.908315 7f6190383a80 Options.bytes_per_sync: 0
+2021/03/14-07:59:33.908315 7f6190383a80 Options.wal_bytes_per_sync: 0
+2021/03/14-07:59:33.908316 7f6190383a80 Options.compaction_readahead_size: 0
+2021/03/14-07:59:33.908317 7f6190383a80 Compression algorithms supported:
+2021/03/14-07:59:33.908317 7f6190383a80 Snappy supported: 1
+2021/03/14-07:59:33.908318 7f6190383a80 Zlib supported: 1
+2021/03/14-07:59:33.908318 7f6190383a80 Bzip supported: 1
+2021/03/14-07:59:33.908319 7f6190383a80 LZ4 supported: 1
+2021/03/14-07:59:33.908320 7f6190383a80 ZSTDNotFinal supported: 1
+2021/03/14-07:59:33.908324 7f6190383a80 ZSTD supported: 1
+2021/03/14-07:59:33.908327 7f6190383a80 Fast CRC32 supported: Supported on x86
+2021/03/14-07:59:33.908328 7f6190383a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-07:59:33.908422 7f6190383a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-07:59:33.908478 7f6190383a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-07:59:33.908480 7f6190383a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-07:59:33.908481 7f6190383a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-07:59:33.908481 7f6190383a80 Options.compaction_filter: None
+2021/03/14-07:59:33.908482 7f6190383a80 Options.compaction_filter_factory: None
+2021/03/14-07:59:33.908483 7f6190383a80 Options.memtable_factory: SkipListFactory
+2021/03/14-07:59:33.908483 7f6190383a80 Options.table_factory: BlockBasedTable
+2021/03/14-07:59:33.908501 7f6190383a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x10cc820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x10b1f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-07:59:33.908502 7f6190383a80 Options.write_buffer_size: 134217728
+2021/03/14-07:59:33.908502 7f6190383a80 Options.max_write_buffer_number: 6
+2021/03/14-07:59:33.908503 7f6190383a80 Options.compression[0]: NoCompression
+2021/03/14-07:59:33.908504 7f6190383a80 Options.compression[1]: NoCompression
+2021/03/14-07:59:33.908504 7f6190383a80 Options.compression[2]: Snappy
+2021/03/14-07:59:33.908505 7f6190383a80 Options.compression[3]: Snappy
+2021/03/14-07:59:33.908506 7f6190383a80 Options.compression[4]: Snappy
+2021/03/14-07:59:33.908506 7f6190383a80 Options.compression[5]: Snappy
+2021/03/14-07:59:33.908507 7f6190383a80 Options.compression[6]: Snappy
+2021/03/14-07:59:33.908508 7f6190383a80 Options.bottommost_compression: Disabled
+2021/03/14-07:59:33.908508 7f6190383a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-07:59:33.908509 7f6190383a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-07:59:33.908510 7f6190383a80 Options.num_levels: 7
+2021/03/14-07:59:33.908510 7f6190383a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-07:59:33.908511 7f6190383a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-07:59:33.908511 7f6190383a80 Options.compression_opts.window_bits: -14
+2021/03/14-07:59:33.908512 7f6190383a80 Options.compression_opts.level: -1
+2021/03/14-07:59:33.908513 7f6190383a80 Options.compression_opts.strategy: 0
+2021/03/14-07:59:33.908513 7f6190383a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-07:59:33.908514 7f6190383a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-07:59:33.908514 7f6190383a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-07:59:33.908515 7f6190383a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-07:59:33.908516 7f6190383a80 Options.target_file_size_base: 67108864
+2021/03/14-07:59:33.908516 7f6190383a80 Options.target_file_size_multiplier: 1
+2021/03/14-07:59:33.908517 7f6190383a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-07:59:33.908517 7f6190383a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-07:59:33.908518 7f6190383a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-07:59:33.908520 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-07:59:33.908527 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-07:59:33.908528 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-07:59:33.908529 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-07:59:33.908529 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-07:59:33.908530 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-07:59:33.908530 7f6190383a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-07:59:33.908531 7f6190383a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-07:59:33.908532 7f6190383a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-07:59:33.908532 7f6190383a80 Options.arena_block_size: 16777216
+2021/03/14-07:59:33.908533 7f6190383a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-07:59:33.908533 7f6190383a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-07:59:33.908534 7f6190383a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-07:59:33.908535 7f6190383a80 Options.disable_auto_compactions: 0
+2021/03/14-07:59:33.908537 7f6190383a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-07:59:33.908537 7f6190383a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-07:59:33.908538 7f6190383a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-07:59:33.908539 7f6190383a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-07:59:33.908539 7f6190383a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-07:59:33.908540 7f6190383a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-07:59:33.908540 7f6190383a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-07:59:33.908541 7f6190383a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-07:59:33.908542 7f6190383a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-07:59:33.908543 7f6190383a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-07:59:33.908543 7f6190383a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-07:59:33.908544 7f6190383a80 Options.table_properties_collectors:
+2021/03/14-07:59:33.908544 7f6190383a80 Options.inplace_update_support: 0
+2021/03/14-07:59:33.908545 7f6190383a80 Options.inplace_update_num_locks: 10000
+2021/03/14-07:59:33.908546 7f6190383a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-07:59:33.908547 7f6190383a80 Options.memtable_huge_page_size: 0
+2021/03/14-07:59:33.908547 7f6190383a80 Options.bloom_locality: 0
+2021/03/14-07:59:33.908548 7f6190383a80 Options.max_successive_merges: 0
+2021/03/14-07:59:33.908548 7f6190383a80 Options.optimize_filters_for_hits: 0
+2021/03/14-07:59:33.908549 7f6190383a80 Options.paranoid_file_checks: 0
+2021/03/14-07:59:33.908549 7f6190383a80 Options.force_consistency_checks: 0
+2021/03/14-07:59:33.908550 7f6190383a80 Options.report_bg_io_stats: 0
+2021/03/14-07:59:33.908934 7f6190383a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-07:59:33.908937 7f6190383a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-07:59:33.909113 7f6190383a80 EVENT_LOG_v1 {"time_micros": 1615705173909102, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-07:59:33.909119 7f6190383a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-07:59:34.680117 7f6190383a80 EVENT_LOG_v1 {"time_micros": 1615705174680113, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705508608544 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705508608544
new file mode 100644
index 0000000..ef9b7e4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705508608544
@@ -0,0 +1,186 @@
+2021/03/14-08:05:07.842524 7f30458f2a80 RocksDB version: 5.11.3
+2021/03/14-08:05:07.842583 7f30458f2a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:05:07.842585 7f30458f2a80 Compile date Mar 13 2021
+2021/03/14-08:05:07.842587 7f30458f2a80 DB SUMMARY
+2021/03/14-08:05:07.842767 7f30458f2a80 CURRENT file: CURRENT
+2021/03/14-08:05:07.842769 7f30458f2a80 IDENTITY file: IDENTITY
+2021/03/14-08:05:07.842786 7f30458f2a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:05:07.842788 7f30458f2a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:05:07.842789 7f30458f2a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:05:07.842795 7f30458f2a80 Options.error_if_exists: 0
+2021/03/14-08:05:07.842796 7f30458f2a80 Options.create_if_missing: 1
+2021/03/14-08:05:07.842796 7f30458f2a80 Options.paranoid_checks: 1
+2021/03/14-08:05:07.842797 7f30458f2a80 Options.env: 0x7f30462ac080
+2021/03/14-08:05:07.842797 7f30458f2a80 Options.info_log: 0x17cafa0
+2021/03/14-08:05:07.842798 7f30458f2a80 Options.max_file_opening_threads: 16
+2021/03/14-08:05:07.842799 7f30458f2a80 Options.statistics: (nil)
+2021/03/14-08:05:07.842800 7f30458f2a80 Options.use_fsync: 0
+2021/03/14-08:05:07.842800 7f30458f2a80 Options.max_log_file_size: 0
+2021/03/14-08:05:07.842801 7f30458f2a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:05:07.842801 7f30458f2a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:05:07.842802 7f30458f2a80 Options.keep_log_file_num: 1000
+2021/03/14-08:05:07.842803 7f30458f2a80 Options.recycle_log_file_num: 0
+2021/03/14-08:05:07.842803 7f30458f2a80 Options.allow_fallocate: 1
+2021/03/14-08:05:07.842804 7f30458f2a80 Options.allow_mmap_reads: 0
+2021/03/14-08:05:07.842805 7f30458f2a80 Options.allow_mmap_writes: 0
+2021/03/14-08:05:07.842805 7f30458f2a80 Options.use_direct_reads: 0
+2021/03/14-08:05:07.842806 7f30458f2a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:05:07.842806 7f30458f2a80 Options.create_missing_column_families: 0
+2021/03/14-08:05:07.842807 7f30458f2a80 Options.db_log_dir:
+2021/03/14-08:05:07.842808 7f30458f2a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:05:07.842808 7f30458f2a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:05:07.842809 7f30458f2a80 Options.max_subcompactions: 1
+2021/03/14-08:05:07.842810 7f30458f2a80 Options.max_background_flushes: -1
+2021/03/14-08:05:07.842810 7f30458f2a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:05:07.842811 7f30458f2a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:05:07.842811 7f30458f2a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:05:07.842812 7f30458f2a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:05:07.842813 7f30458f2a80 Options.advise_random_on_open: 1
+2021/03/14-08:05:07.842813 7f30458f2a80 Options.db_write_buffer_size: 0
+2021/03/14-08:05:07.842814 7f30458f2a80 Options.write_buffer_manager: 0x17b2e90
+2021/03/14-08:05:07.842815 7f30458f2a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:05:07.842815 7f30458f2a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:05:07.842816 7f30458f2a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:05:07.842816 7f30458f2a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:05:07.842817 7f30458f2a80 Options.rate_limiter: (nil)
+2021/03/14-08:05:07.842818 7f30458f2a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:05:07.842826 7f30458f2a80 Options.wal_recovery_mode: 2
+2021/03/14-08:05:07.842827 7f30458f2a80 Options.enable_thread_tracking: 0
+2021/03/14-08:05:07.842828 7f30458f2a80 Options.enable_pipelined_write: 0
+2021/03/14-08:05:07.842828 7f30458f2a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:05:07.842829 7f30458f2a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:05:07.842830 7f30458f2a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:05:07.842830 7f30458f2a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:05:07.842831 7f30458f2a80 Options.row_cache: None
+2021/03/14-08:05:07.842831 7f30458f2a80 Options.wal_filter: None
+2021/03/14-08:05:07.842832 7f30458f2a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:05:07.842833 7f30458f2a80 Options.allow_ingest_behind: 0
+2021/03/14-08:05:07.842833 7f30458f2a80 Options.preserve_deletes: 0
+2021/03/14-08:05:07.842834 7f30458f2a80 Options.two_write_queues: 0
+2021/03/14-08:05:07.842835 7f30458f2a80 Options.manual_wal_flush: 0
+2021/03/14-08:05:07.842836 7f30458f2a80 Options.max_background_jobs: 16
+2021/03/14-08:05:07.842836 7f30458f2a80 Options.max_background_compactions: -1
+2021/03/14-08:05:07.842837 7f30458f2a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:05:07.842838 7f30458f2a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:05:07.842838 7f30458f2a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:05:07.842839 7f30458f2a80 Options.max_total_wal_size: 0
+2021/03/14-08:05:07.842840 7f30458f2a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:05:07.842840 7f30458f2a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:05:07.842841 7f30458f2a80 Options.max_open_files: -1
+2021/03/14-08:05:07.842841 7f30458f2a80 Options.bytes_per_sync: 0
+2021/03/14-08:05:07.842842 7f30458f2a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:05:07.842843 7f30458f2a80 Options.compaction_readahead_size: 0
+2021/03/14-08:05:07.842843 7f30458f2a80 Compression algorithms supported:
+2021/03/14-08:05:07.842844 7f30458f2a80 Snappy supported: 1
+2021/03/14-08:05:07.842845 7f30458f2a80 Zlib supported: 1
+2021/03/14-08:05:07.842845 7f30458f2a80 Bzip supported: 1
+2021/03/14-08:05:07.842846 7f30458f2a80 LZ4 supported: 1
+2021/03/14-08:05:07.842846 7f30458f2a80 ZSTDNotFinal supported: 1
+2021/03/14-08:05:07.842851 7f30458f2a80 ZSTD supported: 1
+2021/03/14-08:05:07.842854 7f30458f2a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:05:07.842856 7f30458f2a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:05:07.843028 7f30458f2a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:05:07.843087 7f30458f2a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:05:07.843088 7f30458f2a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:05:07.843089 7f30458f2a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:05:07.843090 7f30458f2a80 Options.compaction_filter: None
+2021/03/14-08:05:07.843091 7f30458f2a80 Options.compaction_filter_factory: None
+2021/03/14-08:05:07.843091 7f30458f2a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:05:07.843092 7f30458f2a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:05:07.843109 7f30458f2a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x17c2820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x17a7f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:05:07.843110 7f30458f2a80 Options.write_buffer_size: 134217728
+2021/03/14-08:05:07.843111 7f30458f2a80 Options.max_write_buffer_number: 6
+2021/03/14-08:05:07.843112 7f30458f2a80 Options.compression[0]: NoCompression
+2021/03/14-08:05:07.843112 7f30458f2a80 Options.compression[1]: NoCompression
+2021/03/14-08:05:07.843113 7f30458f2a80 Options.compression[2]: Snappy
+2021/03/14-08:05:07.843114 7f30458f2a80 Options.compression[3]: Snappy
+2021/03/14-08:05:07.843114 7f30458f2a80 Options.compression[4]: Snappy
+2021/03/14-08:05:07.843115 7f30458f2a80 Options.compression[5]: Snappy
+2021/03/14-08:05:07.843116 7f30458f2a80 Options.compression[6]: Snappy
+2021/03/14-08:05:07.843116 7f30458f2a80 Options.bottommost_compression: Disabled
+2021/03/14-08:05:07.843117 7f30458f2a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:05:07.843118 7f30458f2a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:05:07.843118 7f30458f2a80 Options.num_levels: 7
+2021/03/14-08:05:07.843119 7f30458f2a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:05:07.843120 7f30458f2a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:05:07.843120 7f30458f2a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:05:07.843121 7f30458f2a80 Options.compression_opts.level: -1
+2021/03/14-08:05:07.843122 7f30458f2a80 Options.compression_opts.strategy: 0
+2021/03/14-08:05:07.843122 7f30458f2a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:05:07.843123 7f30458f2a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:05:07.843123 7f30458f2a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:05:07.843124 7f30458f2a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:05:07.843125 7f30458f2a80 Options.target_file_size_base: 67108864
+2021/03/14-08:05:07.843125 7f30458f2a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:05:07.843126 7f30458f2a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:05:07.843127 7f30458f2a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:05:07.843127 7f30458f2a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:05:07.843129 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:05:07.843137 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:05:07.843137 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:05:07.843138 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:05:07.843139 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:05:07.843139 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:05:07.843140 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:05:07.843140 7f30458f2a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:05:07.843141 7f30458f2a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:05:07.843142 7f30458f2a80 Options.arena_block_size: 16777216
+2021/03/14-08:05:07.843142 7f30458f2a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:05:07.843143 7f30458f2a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:05:07.843144 7f30458f2a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:05:07.843144 7f30458f2a80 Options.disable_auto_compactions: 0
+2021/03/14-08:05:07.843146 7f30458f2a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:05:07.843147 7f30458f2a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:05:07.843147 7f30458f2a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:05:07.843148 7f30458f2a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:05:07.843149 7f30458f2a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:05:07.843149 7f30458f2a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:05:07.843150 7f30458f2a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:05:07.843151 7f30458f2a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:05:07.843152 7f30458f2a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:05:07.843152 7f30458f2a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:05:07.843153 7f30458f2a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:05:07.843153 7f30458f2a80 Options.table_properties_collectors:
+2021/03/14-08:05:07.843154 7f30458f2a80 Options.inplace_update_support: 0
+2021/03/14-08:05:07.843155 7f30458f2a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:05:07.843155 7f30458f2a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:05:07.843156 7f30458f2a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:05:07.843157 7f30458f2a80 Options.bloom_locality: 0
+2021/03/14-08:05:07.843157 7f30458f2a80 Options.max_successive_merges: 0
+2021/03/14-08:05:07.843158 7f30458f2a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:05:07.843159 7f30458f2a80 Options.paranoid_file_checks: 0
+2021/03/14-08:05:07.843159 7f30458f2a80 Options.force_consistency_checks: 0
+2021/03/14-08:05:07.843160 7f30458f2a80 Options.report_bg_io_stats: 0
+2021/03/14-08:05:07.843562 7f30458f2a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:05:07.843565 7f30458f2a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:05:07.843736 7f30458f2a80 EVENT_LOG_v1 {"time_micros": 1615705507843725, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:05:07.843742 7f30458f2a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:05:08.595706 7f30458f2a80 EVENT_LOG_v1 {"time_micros": 1615705508595703, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705509365414 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705509365414
new file mode 100644
index 0000000..6c074e5
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705509365414
@@ -0,0 +1,186 @@
+2021/03/14-08:05:08.609002 7f30458f2a80 RocksDB version: 5.11.3
+2021/03/14-08:05:08.609058 7f30458f2a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:05:08.609060 7f30458f2a80 Compile date Mar 13 2021
+2021/03/14-08:05:08.609062 7f30458f2a80 DB SUMMARY
+2021/03/14-08:05:08.609236 7f30458f2a80 CURRENT file: CURRENT
+2021/03/14-08:05:08.609237 7f30458f2a80 IDENTITY file: IDENTITY
+2021/03/14-08:05:08.609259 7f30458f2a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:05:08.609261 7f30458f2a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:05:08.609261 7f30458f2a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:05:08.609267 7f30458f2a80 Options.error_if_exists: 0
+2021/03/14-08:05:08.609268 7f30458f2a80 Options.create_if_missing: 1
+2021/03/14-08:05:08.609269 7f30458f2a80 Options.paranoid_checks: 1
+2021/03/14-08:05:08.609270 7f30458f2a80 Options.env: 0x7f30462ac080
+2021/03/14-08:05:08.609270 7f30458f2a80 Options.info_log: 0x17cafa0
+2021/03/14-08:05:08.609271 7f30458f2a80 Options.max_file_opening_threads: 16
+2021/03/14-08:05:08.609271 7f30458f2a80 Options.statistics: (nil)
+2021/03/14-08:05:08.609272 7f30458f2a80 Options.use_fsync: 0
+2021/03/14-08:05:08.609273 7f30458f2a80 Options.max_log_file_size: 0
+2021/03/14-08:05:08.609273 7f30458f2a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:05:08.609274 7f30458f2a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:05:08.609275 7f30458f2a80 Options.keep_log_file_num: 1000
+2021/03/14-08:05:08.609275 7f30458f2a80 Options.recycle_log_file_num: 0
+2021/03/14-08:05:08.609276 7f30458f2a80 Options.allow_fallocate: 1
+2021/03/14-08:05:08.609277 7f30458f2a80 Options.allow_mmap_reads: 0
+2021/03/14-08:05:08.609277 7f30458f2a80 Options.allow_mmap_writes: 0
+2021/03/14-08:05:08.609278 7f30458f2a80 Options.use_direct_reads: 0
+2021/03/14-08:05:08.609278 7f30458f2a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:05:08.609279 7f30458f2a80 Options.create_missing_column_families: 0
+2021/03/14-08:05:08.609279 7f30458f2a80 Options.db_log_dir:
+2021/03/14-08:05:08.609280 7f30458f2a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:05:08.609281 7f30458f2a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:05:08.609281 7f30458f2a80 Options.max_subcompactions: 1
+2021/03/14-08:05:08.609282 7f30458f2a80 Options.max_background_flushes: -1
+2021/03/14-08:05:08.609282 7f30458f2a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:05:08.609283 7f30458f2a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:05:08.609284 7f30458f2a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:05:08.609284 7f30458f2a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:05:08.609285 7f30458f2a80 Options.advise_random_on_open: 1
+2021/03/14-08:05:08.609285 7f30458f2a80 Options.db_write_buffer_size: 0
+2021/03/14-08:05:08.609286 7f30458f2a80 Options.write_buffer_manager: 0x17b2e90
+2021/03/14-08:05:08.609287 7f30458f2a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:05:08.609287 7f30458f2a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:05:08.609288 7f30458f2a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:05:08.609288 7f30458f2a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:05:08.609289 7f30458f2a80 Options.rate_limiter: (nil)
+2021/03/14-08:05:08.609290 7f30458f2a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:05:08.609299 7f30458f2a80 Options.wal_recovery_mode: 2
+2021/03/14-08:05:08.609300 7f30458f2a80 Options.enable_thread_tracking: 0
+2021/03/14-08:05:08.609300 7f30458f2a80 Options.enable_pipelined_write: 0
+2021/03/14-08:05:08.609301 7f30458f2a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:05:08.609302 7f30458f2a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:05:08.609302 7f30458f2a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:05:08.609303 7f30458f2a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:05:08.609303 7f30458f2a80 Options.row_cache: None
+2021/03/14-08:05:08.609304 7f30458f2a80 Options.wal_filter: None
+2021/03/14-08:05:08.609305 7f30458f2a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:05:08.609305 7f30458f2a80 Options.allow_ingest_behind: 0
+2021/03/14-08:05:08.609306 7f30458f2a80 Options.preserve_deletes: 0
+2021/03/14-08:05:08.609306 7f30458f2a80 Options.two_write_queues: 0
+2021/03/14-08:05:08.609307 7f30458f2a80 Options.manual_wal_flush: 0
+2021/03/14-08:05:08.609308 7f30458f2a80 Options.max_background_jobs: 16
+2021/03/14-08:05:08.609309 7f30458f2a80 Options.max_background_compactions: -1
+2021/03/14-08:05:08.609309 7f30458f2a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:05:08.609310 7f30458f2a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:05:08.609310 7f30458f2a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:05:08.609311 7f30458f2a80 Options.max_total_wal_size: 0
+2021/03/14-08:05:08.609312 7f30458f2a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:05:08.609312 7f30458f2a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:05:08.609313 7f30458f2a80 Options.max_open_files: -1
+2021/03/14-08:05:08.609313 7f30458f2a80 Options.bytes_per_sync: 0
+2021/03/14-08:05:08.609314 7f30458f2a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:05:08.609314 7f30458f2a80 Options.compaction_readahead_size: 0
+2021/03/14-08:05:08.609315 7f30458f2a80 Compression algorithms supported:
+2021/03/14-08:05:08.609316 7f30458f2a80 Snappy supported: 1
+2021/03/14-08:05:08.609316 7f30458f2a80 Zlib supported: 1
+2021/03/14-08:05:08.609317 7f30458f2a80 Bzip supported: 1
+2021/03/14-08:05:08.609317 7f30458f2a80 LZ4 supported: 1
+2021/03/14-08:05:08.609318 7f30458f2a80 ZSTDNotFinal supported: 1
+2021/03/14-08:05:08.609322 7f30458f2a80 ZSTD supported: 1
+2021/03/14-08:05:08.609325 7f30458f2a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:05:08.609327 7f30458f2a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:05:08.609419 7f30458f2a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:05:08.609473 7f30458f2a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:05:08.609475 7f30458f2a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:05:08.609476 7f30458f2a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:05:08.609476 7f30458f2a80 Options.compaction_filter: None
+2021/03/14-08:05:08.609477 7f30458f2a80 Options.compaction_filter_factory: None
+2021/03/14-08:05:08.609478 7f30458f2a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:05:08.609479 7f30458f2a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:05:08.609494 7f30458f2a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x17c2820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x17a7f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:05:08.609495 7f30458f2a80 Options.write_buffer_size: 134217728
+2021/03/14-08:05:08.609496 7f30458f2a80 Options.max_write_buffer_number: 6
+2021/03/14-08:05:08.609497 7f30458f2a80 Options.compression[0]: NoCompression
+2021/03/14-08:05:08.609497 7f30458f2a80 Options.compression[1]: NoCompression
+2021/03/14-08:05:08.609498 7f30458f2a80 Options.compression[2]: Snappy
+2021/03/14-08:05:08.609499 7f30458f2a80 Options.compression[3]: Snappy
+2021/03/14-08:05:08.609499 7f30458f2a80 Options.compression[4]: Snappy
+2021/03/14-08:05:08.609500 7f30458f2a80 Options.compression[5]: Snappy
+2021/03/14-08:05:08.609500 7f30458f2a80 Options.compression[6]: Snappy
+2021/03/14-08:05:08.609501 7f30458f2a80 Options.bottommost_compression: Disabled
+2021/03/14-08:05:08.609502 7f30458f2a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:05:08.609502 7f30458f2a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:05:08.609503 7f30458f2a80 Options.num_levels: 7
+2021/03/14-08:05:08.609503 7f30458f2a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:05:08.609504 7f30458f2a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:05:08.609505 7f30458f2a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:05:08.609505 7f30458f2a80 Options.compression_opts.level: -1
+2021/03/14-08:05:08.609506 7f30458f2a80 Options.compression_opts.strategy: 0
+2021/03/14-08:05:08.609506 7f30458f2a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:05:08.609507 7f30458f2a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:05:08.609508 7f30458f2a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:05:08.609508 7f30458f2a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:05:08.609509 7f30458f2a80 Options.target_file_size_base: 67108864
+2021/03/14-08:05:08.609509 7f30458f2a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:05:08.609510 7f30458f2a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:05:08.609511 7f30458f2a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:05:08.609511 7f30458f2a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:05:08.609513 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:05:08.609520 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:05:08.609521 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:05:08.609521 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:05:08.609522 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:05:08.609523 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:05:08.609523 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:05:08.609524 7f30458f2a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:05:08.609524 7f30458f2a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:05:08.609525 7f30458f2a80 Options.arena_block_size: 16777216
+2021/03/14-08:05:08.609526 7f30458f2a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:05:08.609526 7f30458f2a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:05:08.609527 7f30458f2a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:05:08.609527 7f30458f2a80 Options.disable_auto_compactions: 0
+2021/03/14-08:05:08.609529 7f30458f2a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:05:08.609530 7f30458f2a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:05:08.609531 7f30458f2a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:05:08.609531 7f30458f2a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:05:08.609532 7f30458f2a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:05:08.609532 7f30458f2a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:05:08.609533 7f30458f2a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:05:08.609534 7f30458f2a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:05:08.609534 7f30458f2a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:05:08.609535 7f30458f2a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:05:08.609536 7f30458f2a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:05:08.609536 7f30458f2a80 Options.table_properties_collectors:
+2021/03/14-08:05:08.609537 7f30458f2a80 Options.inplace_update_support: 0
+2021/03/14-08:05:08.609537 7f30458f2a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:05:08.609538 7f30458f2a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:05:08.609539 7f30458f2a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:05:08.609539 7f30458f2a80 Options.bloom_locality: 0
+2021/03/14-08:05:08.609540 7f30458f2a80 Options.max_successive_merges: 0
+2021/03/14-08:05:08.609541 7f30458f2a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:05:08.609541 7f30458f2a80 Options.paranoid_file_checks: 0
+2021/03/14-08:05:08.609542 7f30458f2a80 Options.force_consistency_checks: 0
+2021/03/14-08:05:08.609542 7f30458f2a80 Options.report_bg_io_stats: 0
+2021/03/14-08:05:08.609923 7f30458f2a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:05:08.609926 7f30458f2a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:05:08.610097 7f30458f2a80 EVENT_LOG_v1 {"time_micros": 1615705508610087, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:05:08.610103 7f30458f2a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:05:09.352328 7f30458f2a80 EVENT_LOG_v1 {"time_micros": 1615705509352325, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705510128094 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705510128094
new file mode 100644
index 0000000..e91f001
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705510128094
@@ -0,0 +1,186 @@
+2021/03/14-08:05:09.365840 7f30458f2a80 RocksDB version: 5.11.3
+2021/03/14-08:05:09.365895 7f30458f2a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:05:09.365896 7f30458f2a80 Compile date Mar 13 2021
+2021/03/14-08:05:09.365899 7f30458f2a80 DB SUMMARY
+2021/03/14-08:05:09.366072 7f30458f2a80 CURRENT file: CURRENT
+2021/03/14-08:05:09.366073 7f30458f2a80 IDENTITY file: IDENTITY
+2021/03/14-08:05:09.366090 7f30458f2a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:05:09.366091 7f30458f2a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:05:09.366092 7f30458f2a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:05:09.366098 7f30458f2a80 Options.error_if_exists: 0
+2021/03/14-08:05:09.366099 7f30458f2a80 Options.create_if_missing: 1
+2021/03/14-08:05:09.366099 7f30458f2a80 Options.paranoid_checks: 1
+2021/03/14-08:05:09.366100 7f30458f2a80 Options.env: 0x7f30462ac080
+2021/03/14-08:05:09.366101 7f30458f2a80 Options.info_log: 0x17cafa0
+2021/03/14-08:05:09.366101 7f30458f2a80 Options.max_file_opening_threads: 16
+2021/03/14-08:05:09.366102 7f30458f2a80 Options.statistics: (nil)
+2021/03/14-08:05:09.366103 7f30458f2a80 Options.use_fsync: 0
+2021/03/14-08:05:09.366103 7f30458f2a80 Options.max_log_file_size: 0
+2021/03/14-08:05:09.366104 7f30458f2a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:05:09.366105 7f30458f2a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:05:09.366105 7f30458f2a80 Options.keep_log_file_num: 1000
+2021/03/14-08:05:09.366106 7f30458f2a80 Options.recycle_log_file_num: 0
+2021/03/14-08:05:09.366107 7f30458f2a80 Options.allow_fallocate: 1
+2021/03/14-08:05:09.366107 7f30458f2a80 Options.allow_mmap_reads: 0
+2021/03/14-08:05:09.366108 7f30458f2a80 Options.allow_mmap_writes: 0
+2021/03/14-08:05:09.366108 7f30458f2a80 Options.use_direct_reads: 0
+2021/03/14-08:05:09.366109 7f30458f2a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:05:09.366109 7f30458f2a80 Options.create_missing_column_families: 0
+2021/03/14-08:05:09.366110 7f30458f2a80 Options.db_log_dir:
+2021/03/14-08:05:09.366111 7f30458f2a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:05:09.366111 7f30458f2a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:05:09.366112 7f30458f2a80 Options.max_subcompactions: 1
+2021/03/14-08:05:09.366112 7f30458f2a80 Options.max_background_flushes: -1
+2021/03/14-08:05:09.366113 7f30458f2a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:05:09.366114 7f30458f2a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:05:09.366114 7f30458f2a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:05:09.366115 7f30458f2a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:05:09.366115 7f30458f2a80 Options.advise_random_on_open: 1
+2021/03/14-08:05:09.366116 7f30458f2a80 Options.db_write_buffer_size: 0
+2021/03/14-08:05:09.366116 7f30458f2a80 Options.write_buffer_manager: 0x17b2e90
+2021/03/14-08:05:09.366117 7f30458f2a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:05:09.366118 7f30458f2a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:05:09.366118 7f30458f2a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:05:09.366119 7f30458f2a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:05:09.366119 7f30458f2a80 Options.rate_limiter: (nil)
+2021/03/14-08:05:09.366121 7f30458f2a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:05:09.366128 7f30458f2a80 Options.wal_recovery_mode: 2
+2021/03/14-08:05:09.366128 7f30458f2a80 Options.enable_thread_tracking: 0
+2021/03/14-08:05:09.366129 7f30458f2a80 Options.enable_pipelined_write: 0
+2021/03/14-08:05:09.366129 7f30458f2a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:05:09.366130 7f30458f2a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:05:09.366131 7f30458f2a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:05:09.366131 7f30458f2a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:05:09.366132 7f30458f2a80 Options.row_cache: None
+2021/03/14-08:05:09.366132 7f30458f2a80 Options.wal_filter: None
+2021/03/14-08:05:09.366133 7f30458f2a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:05:09.366134 7f30458f2a80 Options.allow_ingest_behind: 0
+2021/03/14-08:05:09.366134 7f30458f2a80 Options.preserve_deletes: 0
+2021/03/14-08:05:09.366135 7f30458f2a80 Options.two_write_queues: 0
+2021/03/14-08:05:09.366135 7f30458f2a80 Options.manual_wal_flush: 0
+2021/03/14-08:05:09.366136 7f30458f2a80 Options.max_background_jobs: 16
+2021/03/14-08:05:09.366137 7f30458f2a80 Options.max_background_compactions: -1
+2021/03/14-08:05:09.366138 7f30458f2a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:05:09.366138 7f30458f2a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:05:09.366139 7f30458f2a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:05:09.366139 7f30458f2a80 Options.max_total_wal_size: 0
+2021/03/14-08:05:09.366140 7f30458f2a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:05:09.366141 7f30458f2a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:05:09.366141 7f30458f2a80 Options.max_open_files: -1
+2021/03/14-08:05:09.366142 7f30458f2a80 Options.bytes_per_sync: 0
+2021/03/14-08:05:09.366142 7f30458f2a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:05:09.366143 7f30458f2a80 Options.compaction_readahead_size: 0
+2021/03/14-08:05:09.366144 7f30458f2a80 Compression algorithms supported:
+2021/03/14-08:05:09.366144 7f30458f2a80 Snappy supported: 1
+2021/03/14-08:05:09.366145 7f30458f2a80 Zlib supported: 1
+2021/03/14-08:05:09.366145 7f30458f2a80 Bzip supported: 1
+2021/03/14-08:05:09.366146 7f30458f2a80 LZ4 supported: 1
+2021/03/14-08:05:09.366146 7f30458f2a80 ZSTDNotFinal supported: 1
+2021/03/14-08:05:09.366150 7f30458f2a80 ZSTD supported: 1
+2021/03/14-08:05:09.366153 7f30458f2a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:05:09.366154 7f30458f2a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:05:09.366251 7f30458f2a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:05:09.366306 7f30458f2a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:05:09.366307 7f30458f2a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:05:09.366308 7f30458f2a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:05:09.366309 7f30458f2a80 Options.compaction_filter: None
+2021/03/14-08:05:09.366310 7f30458f2a80 Options.compaction_filter_factory: None
+2021/03/14-08:05:09.366310 7f30458f2a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:05:09.366311 7f30458f2a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:05:09.366327 7f30458f2a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x17c2820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x17a7f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:05:09.366328 7f30458f2a80 Options.write_buffer_size: 134217728
+2021/03/14-08:05:09.366328 7f30458f2a80 Options.max_write_buffer_number: 6
+2021/03/14-08:05:09.366329 7f30458f2a80 Options.compression[0]: NoCompression
+2021/03/14-08:05:09.366330 7f30458f2a80 Options.compression[1]: NoCompression
+2021/03/14-08:05:09.366331 7f30458f2a80 Options.compression[2]: Snappy
+2021/03/14-08:05:09.366331 7f30458f2a80 Options.compression[3]: Snappy
+2021/03/14-08:05:09.366332 7f30458f2a80 Options.compression[4]: Snappy
+2021/03/14-08:05:09.366332 7f30458f2a80 Options.compression[5]: Snappy
+2021/03/14-08:05:09.366333 7f30458f2a80 Options.compression[6]: Snappy
+2021/03/14-08:05:09.366334 7f30458f2a80 Options.bottommost_compression: Disabled
+2021/03/14-08:05:09.366334 7f30458f2a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:05:09.366335 7f30458f2a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:05:09.366336 7f30458f2a80 Options.num_levels: 7
+2021/03/14-08:05:09.366336 7f30458f2a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:05:09.366337 7f30458f2a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:05:09.366337 7f30458f2a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:05:09.366338 7f30458f2a80 Options.compression_opts.level: -1
+2021/03/14-08:05:09.366339 7f30458f2a80 Options.compression_opts.strategy: 0
+2021/03/14-08:05:09.366339 7f30458f2a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:05:09.366340 7f30458f2a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:05:09.366340 7f30458f2a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:05:09.366341 7f30458f2a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:05:09.366341 7f30458f2a80 Options.target_file_size_base: 67108864
+2021/03/14-08:05:09.366342 7f30458f2a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:05:09.366343 7f30458f2a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:05:09.366343 7f30458f2a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:05:09.366344 7f30458f2a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:05:09.366345 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:05:09.366353 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:05:09.366354 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:05:09.366355 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:05:09.366355 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:05:09.366356 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:05:09.366356 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:05:09.366357 7f30458f2a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:05:09.366358 7f30458f2a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:05:09.366358 7f30458f2a80 Options.arena_block_size: 16777216
+2021/03/14-08:05:09.366359 7f30458f2a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:05:09.366359 7f30458f2a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:05:09.366360 7f30458f2a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:05:09.366361 7f30458f2a80 Options.disable_auto_compactions: 0
+2021/03/14-08:05:09.366362 7f30458f2a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:05:09.366363 7f30458f2a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:05:09.366364 7f30458f2a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:05:09.366364 7f30458f2a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:05:09.366365 7f30458f2a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:05:09.366366 7f30458f2a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:05:09.366366 7f30458f2a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:05:09.366367 7f30458f2a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:05:09.366368 7f30458f2a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:05:09.366368 7f30458f2a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:05:09.366369 7f30458f2a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:05:09.366370 7f30458f2a80 Options.table_properties_collectors:
+2021/03/14-08:05:09.366370 7f30458f2a80 Options.inplace_update_support: 0
+2021/03/14-08:05:09.366371 7f30458f2a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:05:09.366371 7f30458f2a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:05:09.366372 7f30458f2a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:05:09.366373 7f30458f2a80 Options.bloom_locality: 0
+2021/03/14-08:05:09.366373 7f30458f2a80 Options.max_successive_merges: 0
+2021/03/14-08:05:09.366374 7f30458f2a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:05:09.366375 7f30458f2a80 Options.paranoid_file_checks: 0
+2021/03/14-08:05:09.366375 7f30458f2a80 Options.force_consistency_checks: 0
+2021/03/14-08:05:09.366376 7f30458f2a80 Options.report_bg_io_stats: 0
+2021/03/14-08:05:09.366746 7f30458f2a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:05:09.366749 7f30458f2a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:05:09.366915 7f30458f2a80 EVENT_LOG_v1 {"time_micros": 1615705509366905, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:05:09.366920 7f30458f2a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:05:10.115215 7f30458f2a80 EVENT_LOG_v1 {"time_micros": 1615705510115211, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705568333580 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705568333580
new file mode 100644
index 0000000..74942ca
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705568333580
@@ -0,0 +1,186 @@
+2021/03/14-08:05:10.128552 7f30458f2a80 RocksDB version: 5.11.3
+2021/03/14-08:05:10.128608 7f30458f2a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:05:10.128609 7f30458f2a80 Compile date Mar 13 2021
+2021/03/14-08:05:10.128611 7f30458f2a80 DB SUMMARY
+2021/03/14-08:05:10.128790 7f30458f2a80 CURRENT file: CURRENT
+2021/03/14-08:05:10.128791 7f30458f2a80 IDENTITY file: IDENTITY
+2021/03/14-08:05:10.128808 7f30458f2a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:05:10.128809 7f30458f2a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:05:10.128810 7f30458f2a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:05:10.128816 7f30458f2a80 Options.error_if_exists: 0
+2021/03/14-08:05:10.128817 7f30458f2a80 Options.create_if_missing: 1
+2021/03/14-08:05:10.128818 7f30458f2a80 Options.paranoid_checks: 1
+2021/03/14-08:05:10.128818 7f30458f2a80 Options.env: 0x7f30462ac080
+2021/03/14-08:05:10.128819 7f30458f2a80 Options.info_log: 0x17cafa0
+2021/03/14-08:05:10.128820 7f30458f2a80 Options.max_file_opening_threads: 16
+2021/03/14-08:05:10.128820 7f30458f2a80 Options.statistics: (nil)
+2021/03/14-08:05:10.128821 7f30458f2a80 Options.use_fsync: 0
+2021/03/14-08:05:10.128821 7f30458f2a80 Options.max_log_file_size: 0
+2021/03/14-08:05:10.128822 7f30458f2a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:05:10.128823 7f30458f2a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:05:10.128823 7f30458f2a80 Options.keep_log_file_num: 1000
+2021/03/14-08:05:10.128824 7f30458f2a80 Options.recycle_log_file_num: 0
+2021/03/14-08:05:10.128825 7f30458f2a80 Options.allow_fallocate: 1
+2021/03/14-08:05:10.128825 7f30458f2a80 Options.allow_mmap_reads: 0
+2021/03/14-08:05:10.128826 7f30458f2a80 Options.allow_mmap_writes: 0
+2021/03/14-08:05:10.128826 7f30458f2a80 Options.use_direct_reads: 0
+2021/03/14-08:05:10.128827 7f30458f2a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:05:10.128827 7f30458f2a80 Options.create_missing_column_families: 0
+2021/03/14-08:05:10.128828 7f30458f2a80 Options.db_log_dir:
+2021/03/14-08:05:10.128829 7f30458f2a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:05:10.128829 7f30458f2a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:05:10.128830 7f30458f2a80 Options.max_subcompactions: 1
+2021/03/14-08:05:10.128830 7f30458f2a80 Options.max_background_flushes: -1
+2021/03/14-08:05:10.128831 7f30458f2a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:05:10.128832 7f30458f2a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:05:10.128832 7f30458f2a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:05:10.128833 7f30458f2a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:05:10.128833 7f30458f2a80 Options.advise_random_on_open: 1
+2021/03/14-08:05:10.128834 7f30458f2a80 Options.db_write_buffer_size: 0
+2021/03/14-08:05:10.128835 7f30458f2a80 Options.write_buffer_manager: 0x17b2e90
+2021/03/14-08:05:10.128835 7f30458f2a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:05:10.128836 7f30458f2a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:05:10.128836 7f30458f2a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:05:10.128837 7f30458f2a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:05:10.128837 7f30458f2a80 Options.rate_limiter: (nil)
+2021/03/14-08:05:10.128839 7f30458f2a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:05:10.128846 7f30458f2a80 Options.wal_recovery_mode: 2
+2021/03/14-08:05:10.128847 7f30458f2a80 Options.enable_thread_tracking: 0
+2021/03/14-08:05:10.128848 7f30458f2a80 Options.enable_pipelined_write: 0
+2021/03/14-08:05:10.128848 7f30458f2a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:05:10.128849 7f30458f2a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:05:10.128849 7f30458f2a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:05:10.128850 7f30458f2a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:05:10.128851 7f30458f2a80 Options.row_cache: None
+2021/03/14-08:05:10.128851 7f30458f2a80 Options.wal_filter: None
+2021/03/14-08:05:10.128852 7f30458f2a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:05:10.128852 7f30458f2a80 Options.allow_ingest_behind: 0
+2021/03/14-08:05:10.128853 7f30458f2a80 Options.preserve_deletes: 0
+2021/03/14-08:05:10.128853 7f30458f2a80 Options.two_write_queues: 0
+2021/03/14-08:05:10.128854 7f30458f2a80 Options.manual_wal_flush: 0
+2021/03/14-08:05:10.128855 7f30458f2a80 Options.max_background_jobs: 16
+2021/03/14-08:05:10.128856 7f30458f2a80 Options.max_background_compactions: -1
+2021/03/14-08:05:10.128856 7f30458f2a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:05:10.128857 7f30458f2a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:05:10.128858 7f30458f2a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:05:10.128858 7f30458f2a80 Options.max_total_wal_size: 0
+2021/03/14-08:05:10.128859 7f30458f2a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:05:10.128859 7f30458f2a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:05:10.128860 7f30458f2a80 Options.max_open_files: -1
+2021/03/14-08:05:10.128861 7f30458f2a80 Options.bytes_per_sync: 0
+2021/03/14-08:05:10.128861 7f30458f2a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:05:10.128862 7f30458f2a80 Options.compaction_readahead_size: 0
+2021/03/14-08:05:10.128862 7f30458f2a80 Compression algorithms supported:
+2021/03/14-08:05:10.128863 7f30458f2a80 Snappy supported: 1
+2021/03/14-08:05:10.128864 7f30458f2a80 Zlib supported: 1
+2021/03/14-08:05:10.128864 7f30458f2a80 Bzip supported: 1
+2021/03/14-08:05:10.128865 7f30458f2a80 LZ4 supported: 1
+2021/03/14-08:05:10.128865 7f30458f2a80 ZSTDNotFinal supported: 1
+2021/03/14-08:05:10.128870 7f30458f2a80 ZSTD supported: 1
+2021/03/14-08:05:10.128873 7f30458f2a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:05:10.128874 7f30458f2a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:05:10.128967 7f30458f2a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:05:10.129022 7f30458f2a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:05:10.129024 7f30458f2a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:05:10.129025 7f30458f2a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:05:10.129025 7f30458f2a80 Options.compaction_filter: None
+2021/03/14-08:05:10.129026 7f30458f2a80 Options.compaction_filter_factory: None
+2021/03/14-08:05:10.129027 7f30458f2a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:05:10.129027 7f30458f2a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:05:10.129043 7f30458f2a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x17c2820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x17a7f20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:05:10.129049 7f30458f2a80 Options.write_buffer_size: 134217728
+2021/03/14-08:05:10.129050 7f30458f2a80 Options.max_write_buffer_number: 6
+2021/03/14-08:05:10.129051 7f30458f2a80 Options.compression[0]: NoCompression
+2021/03/14-08:05:10.129051 7f30458f2a80 Options.compression[1]: NoCompression
+2021/03/14-08:05:10.129052 7f30458f2a80 Options.compression[2]: Snappy
+2021/03/14-08:05:10.129053 7f30458f2a80 Options.compression[3]: Snappy
+2021/03/14-08:05:10.129053 7f30458f2a80 Options.compression[4]: Snappy
+2021/03/14-08:05:10.129054 7f30458f2a80 Options.compression[5]: Snappy
+2021/03/14-08:05:10.129055 7f30458f2a80 Options.compression[6]: Snappy
+2021/03/14-08:05:10.129055 7f30458f2a80 Options.bottommost_compression: Disabled
+2021/03/14-08:05:10.129056 7f30458f2a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:05:10.129057 7f30458f2a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:05:10.129057 7f30458f2a80 Options.num_levels: 7
+2021/03/14-08:05:10.129058 7f30458f2a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:05:10.129058 7f30458f2a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:05:10.129059 7f30458f2a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:05:10.129060 7f30458f2a80 Options.compression_opts.level: -1
+2021/03/14-08:05:10.129060 7f30458f2a80 Options.compression_opts.strategy: 0
+2021/03/14-08:05:10.129061 7f30458f2a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:05:10.129061 7f30458f2a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:05:10.129062 7f30458f2a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:05:10.129062 7f30458f2a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:05:10.129063 7f30458f2a80 Options.target_file_size_base: 67108864
+2021/03/14-08:05:10.129064 7f30458f2a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:05:10.129064 7f30458f2a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:05:10.129065 7f30458f2a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:05:10.129065 7f30458f2a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:05:10.129067 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:05:10.129074 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:05:10.129075 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:05:10.129076 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:05:10.129076 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:05:10.129077 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:05:10.129077 7f30458f2a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:05:10.129078 7f30458f2a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:05:10.129078 7f30458f2a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:05:10.129079 7f30458f2a80 Options.arena_block_size: 16777216
+2021/03/14-08:05:10.129080 7f30458f2a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:05:10.129080 7f30458f2a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:05:10.129081 7f30458f2a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:05:10.129082 7f30458f2a80 Options.disable_auto_compactions: 0
+2021/03/14-08:05:10.129084 7f30458f2a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:05:10.129084 7f30458f2a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:05:10.129085 7f30458f2a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:05:10.129086 7f30458f2a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:05:10.129086 7f30458f2a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:05:10.129087 7f30458f2a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:05:10.129087 7f30458f2a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:05:10.129089 7f30458f2a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:05:10.129089 7f30458f2a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:05:10.129090 7f30458f2a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:05:10.129090 7f30458f2a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:05:10.129091 7f30458f2a80 Options.table_properties_collectors:
+2021/03/14-08:05:10.129092 7f30458f2a80 Options.inplace_update_support: 0
+2021/03/14-08:05:10.129092 7f30458f2a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:05:10.129093 7f30458f2a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:05:10.129094 7f30458f2a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:05:10.129094 7f30458f2a80 Options.bloom_locality: 0
+2021/03/14-08:05:10.129095 7f30458f2a80 Options.max_successive_merges: 0
+2021/03/14-08:05:10.129096 7f30458f2a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:05:10.129096 7f30458f2a80 Options.paranoid_file_checks: 0
+2021/03/14-08:05:10.129097 7f30458f2a80 Options.force_consistency_checks: 0
+2021/03/14-08:05:10.129097 7f30458f2a80 Options.report_bg_io_stats: 0
+2021/03/14-08:05:10.129488 7f30458f2a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:05:10.129491 7f30458f2a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:05:10.129698 7f30458f2a80 EVENT_LOG_v1 {"time_micros": 1615705510129685, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:05:10.129706 7f30458f2a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:05:10.883515 7f30458f2a80 EVENT_LOG_v1 {"time_micros": 1615705510883511, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705569081665 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705569081665
new file mode 100644
index 0000000..ad508bc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705569081665
@@ -0,0 +1,186 @@
+2021/03/14-08:06:08.334086 7f1687ffca80 RocksDB version: 5.11.3
+2021/03/14-08:06:08.334148 7f1687ffca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:06:08.334150 7f1687ffca80 Compile date Mar 13 2021
+2021/03/14-08:06:08.334152 7f1687ffca80 DB SUMMARY
+2021/03/14-08:06:08.334341 7f1687ffca80 CURRENT file: CURRENT
+2021/03/14-08:06:08.334342 7f1687ffca80 IDENTITY file: IDENTITY
+2021/03/14-08:06:08.334360 7f1687ffca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:06:08.334361 7f1687ffca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:06:08.334362 7f1687ffca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:06:08.334368 7f1687ffca80 Options.error_if_exists: 0
+2021/03/14-08:06:08.334369 7f1687ffca80 Options.create_if_missing: 1
+2021/03/14-08:06:08.334370 7f1687ffca80 Options.paranoid_checks: 1
+2021/03/14-08:06:08.334371 7f1687ffca80 Options.env: 0x7f16889b6080
+2021/03/14-08:06:08.334371 7f1687ffca80 Options.info_log: 0x207ef60
+2021/03/14-08:06:08.334372 7f1687ffca80 Options.max_file_opening_threads: 16
+2021/03/14-08:06:08.334372 7f1687ffca80 Options.statistics: (nil)
+2021/03/14-08:06:08.334373 7f1687ffca80 Options.use_fsync: 0
+2021/03/14-08:06:08.334374 7f1687ffca80 Options.max_log_file_size: 0
+2021/03/14-08:06:08.334375 7f1687ffca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:06:08.334375 7f1687ffca80 Options.log_file_time_to_roll: 0
+2021/03/14-08:06:08.334376 7f1687ffca80 Options.keep_log_file_num: 1000
+2021/03/14-08:06:08.334376 7f1687ffca80 Options.recycle_log_file_num: 0
+2021/03/14-08:06:08.334377 7f1687ffca80 Options.allow_fallocate: 1
+2021/03/14-08:06:08.334378 7f1687ffca80 Options.allow_mmap_reads: 0
+2021/03/14-08:06:08.334378 7f1687ffca80 Options.allow_mmap_writes: 0
+2021/03/14-08:06:08.334379 7f1687ffca80 Options.use_direct_reads: 0
+2021/03/14-08:06:08.334380 7f1687ffca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:06:08.334380 7f1687ffca80 Options.create_missing_column_families: 0
+2021/03/14-08:06:08.334381 7f1687ffca80 Options.db_log_dir:
+2021/03/14-08:06:08.334381 7f1687ffca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:06:08.334382 7f1687ffca80 Options.table_cache_numshardbits: 6
+2021/03/14-08:06:08.334383 7f1687ffca80 Options.max_subcompactions: 1
+2021/03/14-08:06:08.334383 7f1687ffca80 Options.max_background_flushes: -1
+2021/03/14-08:06:08.334384 7f1687ffca80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:06:08.334385 7f1687ffca80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:06:08.334385 7f1687ffca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:06:08.334386 7f1687ffca80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:06:08.334387 7f1687ffca80 Options.advise_random_on_open: 1
+2021/03/14-08:06:08.334387 7f1687ffca80 Options.db_write_buffer_size: 0
+2021/03/14-08:06:08.334388 7f1687ffca80 Options.write_buffer_manager: 0x2066e70
+2021/03/14-08:06:08.334388 7f1687ffca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:06:08.334389 7f1687ffca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:06:08.334390 7f1687ffca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:06:08.334390 7f1687ffca80 Options.use_adaptive_mutex: 0
+2021/03/14-08:06:08.334391 7f1687ffca80 Options.rate_limiter: (nil)
+2021/03/14-08:06:08.334392 7f1687ffca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:06:08.334402 7f1687ffca80 Options.wal_recovery_mode: 2
+2021/03/14-08:06:08.334403 7f1687ffca80 Options.enable_thread_tracking: 0
+2021/03/14-08:06:08.334404 7f1687ffca80 Options.enable_pipelined_write: 0
+2021/03/14-08:06:08.334404 7f1687ffca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:06:08.334405 7f1687ffca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:06:08.334405 7f1687ffca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:06:08.334406 7f1687ffca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:06:08.334407 7f1687ffca80 Options.row_cache: None
+2021/03/14-08:06:08.334407 7f1687ffca80 Options.wal_filter: None
+2021/03/14-08:06:08.334408 7f1687ffca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:06:08.334409 7f1687ffca80 Options.allow_ingest_behind: 0
+2021/03/14-08:06:08.334409 7f1687ffca80 Options.preserve_deletes: 0
+2021/03/14-08:06:08.334410 7f1687ffca80 Options.two_write_queues: 0
+2021/03/14-08:06:08.334410 7f1687ffca80 Options.manual_wal_flush: 0
+2021/03/14-08:06:08.334412 7f1687ffca80 Options.max_background_jobs: 16
+2021/03/14-08:06:08.334412 7f1687ffca80 Options.max_background_compactions: -1
+2021/03/14-08:06:08.334413 7f1687ffca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:06:08.334413 7f1687ffca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:06:08.334414 7f1687ffca80 Options.delayed_write_rate : 16777216
+2021/03/14-08:06:08.334415 7f1687ffca80 Options.max_total_wal_size: 0
+2021/03/14-08:06:08.334415 7f1687ffca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:06:08.334416 7f1687ffca80 Options.stats_dump_period_sec: 600
+2021/03/14-08:06:08.334417 7f1687ffca80 Options.max_open_files: -1
+2021/03/14-08:06:08.334417 7f1687ffca80 Options.bytes_per_sync: 0
+2021/03/14-08:06:08.334418 7f1687ffca80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:06:08.334418 7f1687ffca80 Options.compaction_readahead_size: 0
+2021/03/14-08:06:08.334419 7f1687ffca80 Compression algorithms supported:
+2021/03/14-08:06:08.334420 7f1687ffca80 Snappy supported: 1
+2021/03/14-08:06:08.334420 7f1687ffca80 Zlib supported: 1
+2021/03/14-08:06:08.334421 7f1687ffca80 Bzip supported: 1
+2021/03/14-08:06:08.334422 7f1687ffca80 LZ4 supported: 1
+2021/03/14-08:06:08.334422 7f1687ffca80 ZSTDNotFinal supported: 1
+2021/03/14-08:06:08.334427 7f1687ffca80 ZSTD supported: 1
+2021/03/14-08:06:08.334431 7f1687ffca80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:06:08.334432 7f1687ffca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:06:08.334562 7f1687ffca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:06:08.334626 7f1687ffca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:06:08.334628 7f1687ffca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:06:08.334629 7f1687ffca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:06:08.334629 7f1687ffca80 Options.compaction_filter: None
+2021/03/14-08:06:08.334630 7f1687ffca80 Options.compaction_filter_factory: None
+2021/03/14-08:06:08.334631 7f1687ffca80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:06:08.334632 7f1687ffca80 Options.table_factory: BlockBasedTable
+2021/03/14-08:06:08.334650 7f1687ffca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2076800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x205bf00
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:06:08.334656 7f1687ffca80 Options.write_buffer_size: 134217728
+2021/03/14-08:06:08.334657 7f1687ffca80 Options.max_write_buffer_number: 6
+2021/03/14-08:06:08.334658 7f1687ffca80 Options.compression[0]: NoCompression
+2021/03/14-08:06:08.334659 7f1687ffca80 Options.compression[1]: NoCompression
+2021/03/14-08:06:08.334659 7f1687ffca80 Options.compression[2]: Snappy
+2021/03/14-08:06:08.334660 7f1687ffca80 Options.compression[3]: Snappy
+2021/03/14-08:06:08.334661 7f1687ffca80 Options.compression[4]: Snappy
+2021/03/14-08:06:08.334661 7f1687ffca80 Options.compression[5]: Snappy
+2021/03/14-08:06:08.334662 7f1687ffca80 Options.compression[6]: Snappy
+2021/03/14-08:06:08.334663 7f1687ffca80 Options.bottommost_compression: Disabled
+2021/03/14-08:06:08.334664 7f1687ffca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:06:08.334664 7f1687ffca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:06:08.334665 7f1687ffca80 Options.num_levels: 7
+2021/03/14-08:06:08.334665 7f1687ffca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:06:08.334666 7f1687ffca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:06:08.334667 7f1687ffca80 Options.compression_opts.window_bits: -14
+2021/03/14-08:06:08.334667 7f1687ffca80 Options.compression_opts.level: -1
+2021/03/14-08:06:08.334668 7f1687ffca80 Options.compression_opts.strategy: 0
+2021/03/14-08:06:08.334668 7f1687ffca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:06:08.334669 7f1687ffca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:06:08.334670 7f1687ffca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:06:08.334670 7f1687ffca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:06:08.334671 7f1687ffca80 Options.target_file_size_base: 67108864
+2021/03/14-08:06:08.334672 7f1687ffca80 Options.target_file_size_multiplier: 1
+2021/03/14-08:06:08.334672 7f1687ffca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:06:08.334673 7f1687ffca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:06:08.334673 7f1687ffca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:06:08.334675 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:06:08.334684 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:06:08.334684 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:06:08.334685 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:06:08.334686 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:06:08.334686 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:06:08.334687 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:06:08.334688 7f1687ffca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:06:08.334688 7f1687ffca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:06:08.334689 7f1687ffca80 Options.arena_block_size: 16777216
+2021/03/14-08:06:08.334690 7f1687ffca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:06:08.334690 7f1687ffca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:06:08.334691 7f1687ffca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:06:08.334691 7f1687ffca80 Options.disable_auto_compactions: 0
+2021/03/14-08:06:08.334693 7f1687ffca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:06:08.334694 7f1687ffca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:06:08.334695 7f1687ffca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:06:08.334695 7f1687ffca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:06:08.334696 7f1687ffca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:06:08.334697 7f1687ffca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:06:08.334697 7f1687ffca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:06:08.334698 7f1687ffca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:06:08.334699 7f1687ffca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:06:08.334700 7f1687ffca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:06:08.334700 7f1687ffca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:06:08.334701 7f1687ffca80 Options.table_properties_collectors:
+2021/03/14-08:06:08.334702 7f1687ffca80 Options.inplace_update_support: 0
+2021/03/14-08:06:08.334702 7f1687ffca80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:06:08.334703 7f1687ffca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:06:08.334704 7f1687ffca80 Options.memtable_huge_page_size: 0
+2021/03/14-08:06:08.334704 7f1687ffca80 Options.bloom_locality: 0
+2021/03/14-08:06:08.334705 7f1687ffca80 Options.max_successive_merges: 0
+2021/03/14-08:06:08.334706 7f1687ffca80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:06:08.334706 7f1687ffca80 Options.paranoid_file_checks: 0
+2021/03/14-08:06:08.334707 7f1687ffca80 Options.force_consistency_checks: 0
+2021/03/14-08:06:08.334707 7f1687ffca80 Options.report_bg_io_stats: 0
+2021/03/14-08:06:08.335114 7f1687ffca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:06:08.335117 7f1687ffca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:06:08.335302 7f1687ffca80 EVENT_LOG_v1 {"time_micros": 1615705568335291, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:06:08.335309 7f1687ffca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:06:09.068897 7f1687ffca80 EVENT_LOG_v1 {"time_micros": 1615705569068893, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705569805880 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705569805880
new file mode 100644
index 0000000..c566c8a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705569805880
@@ -0,0 +1,186 @@
+2021/03/14-08:06:09.082083 7f1687ffca80 RocksDB version: 5.11.3
+2021/03/14-08:06:09.082138 7f1687ffca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:06:09.082140 7f1687ffca80 Compile date Mar 13 2021
+2021/03/14-08:06:09.082142 7f1687ffca80 DB SUMMARY
+2021/03/14-08:06:09.082329 7f1687ffca80 CURRENT file: CURRENT
+2021/03/14-08:06:09.082331 7f1687ffca80 IDENTITY file: IDENTITY
+2021/03/14-08:06:09.082347 7f1687ffca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:06:09.082349 7f1687ffca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:06:09.082350 7f1687ffca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:06:09.082355 7f1687ffca80 Options.error_if_exists: 0
+2021/03/14-08:06:09.082356 7f1687ffca80 Options.create_if_missing: 1
+2021/03/14-08:06:09.082357 7f1687ffca80 Options.paranoid_checks: 1
+2021/03/14-08:06:09.082357 7f1687ffca80 Options.env: 0x7f16889b6080
+2021/03/14-08:06:09.082358 7f1687ffca80 Options.info_log: 0x207ef60
+2021/03/14-08:06:09.082359 7f1687ffca80 Options.max_file_opening_threads: 16
+2021/03/14-08:06:09.082359 7f1687ffca80 Options.statistics: (nil)
+2021/03/14-08:06:09.082360 7f1687ffca80 Options.use_fsync: 0
+2021/03/14-08:06:09.082361 7f1687ffca80 Options.max_log_file_size: 0
+2021/03/14-08:06:09.082361 7f1687ffca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:06:09.082362 7f1687ffca80 Options.log_file_time_to_roll: 0
+2021/03/14-08:06:09.082363 7f1687ffca80 Options.keep_log_file_num: 1000
+2021/03/14-08:06:09.082363 7f1687ffca80 Options.recycle_log_file_num: 0
+2021/03/14-08:06:09.082364 7f1687ffca80 Options.allow_fallocate: 1
+2021/03/14-08:06:09.082364 7f1687ffca80 Options.allow_mmap_reads: 0
+2021/03/14-08:06:09.082365 7f1687ffca80 Options.allow_mmap_writes: 0
+2021/03/14-08:06:09.082366 7f1687ffca80 Options.use_direct_reads: 0
+2021/03/14-08:06:09.082366 7f1687ffca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:06:09.082367 7f1687ffca80 Options.create_missing_column_families: 0
+2021/03/14-08:06:09.082367 7f1687ffca80 Options.db_log_dir:
+2021/03/14-08:06:09.082368 7f1687ffca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:06:09.082369 7f1687ffca80 Options.table_cache_numshardbits: 6
+2021/03/14-08:06:09.082369 7f1687ffca80 Options.max_subcompactions: 1
+2021/03/14-08:06:09.082370 7f1687ffca80 Options.max_background_flushes: -1
+2021/03/14-08:06:09.082370 7f1687ffca80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:06:09.082371 7f1687ffca80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:06:09.082372 7f1687ffca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:06:09.082372 7f1687ffca80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:06:09.082373 7f1687ffca80 Options.advise_random_on_open: 1
+2021/03/14-08:06:09.082373 7f1687ffca80 Options.db_write_buffer_size: 0
+2021/03/14-08:06:09.082374 7f1687ffca80 Options.write_buffer_manager: 0x2066e70
+2021/03/14-08:06:09.082375 7f1687ffca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:06:09.082375 7f1687ffca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:06:09.082376 7f1687ffca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:06:09.082376 7f1687ffca80 Options.use_adaptive_mutex: 0
+2021/03/14-08:06:09.082377 7f1687ffca80 Options.rate_limiter: (nil)
+2021/03/14-08:06:09.082378 7f1687ffca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:06:09.082387 7f1687ffca80 Options.wal_recovery_mode: 2
+2021/03/14-08:06:09.082388 7f1687ffca80 Options.enable_thread_tracking: 0
+2021/03/14-08:06:09.082388 7f1687ffca80 Options.enable_pipelined_write: 0
+2021/03/14-08:06:09.082389 7f1687ffca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:06:09.082389 7f1687ffca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:06:09.082390 7f1687ffca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:06:09.082391 7f1687ffca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:06:09.082391 7f1687ffca80 Options.row_cache: None
+2021/03/14-08:06:09.082392 7f1687ffca80 Options.wal_filter: None
+2021/03/14-08:06:09.082393 7f1687ffca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:06:09.082393 7f1687ffca80 Options.allow_ingest_behind: 0
+2021/03/14-08:06:09.082394 7f1687ffca80 Options.preserve_deletes: 0
+2021/03/14-08:06:09.082394 7f1687ffca80 Options.two_write_queues: 0
+2021/03/14-08:06:09.082395 7f1687ffca80 Options.manual_wal_flush: 0
+2021/03/14-08:06:09.082396 7f1687ffca80 Options.max_background_jobs: 16
+2021/03/14-08:06:09.082397 7f1687ffca80 Options.max_background_compactions: -1
+2021/03/14-08:06:09.082397 7f1687ffca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:06:09.082398 7f1687ffca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:06:09.082399 7f1687ffca80 Options.delayed_write_rate : 16777216
+2021/03/14-08:06:09.082399 7f1687ffca80 Options.max_total_wal_size: 0
+2021/03/14-08:06:09.082400 7f1687ffca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:06:09.082400 7f1687ffca80 Options.stats_dump_period_sec: 600
+2021/03/14-08:06:09.082401 7f1687ffca80 Options.max_open_files: -1
+2021/03/14-08:06:09.082402 7f1687ffca80 Options.bytes_per_sync: 0
+2021/03/14-08:06:09.082402 7f1687ffca80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:06:09.082403 7f1687ffca80 Options.compaction_readahead_size: 0
+2021/03/14-08:06:09.082403 7f1687ffca80 Compression algorithms supported:
+2021/03/14-08:06:09.082404 7f1687ffca80 Snappy supported: 1
+2021/03/14-08:06:09.082405 7f1687ffca80 Zlib supported: 1
+2021/03/14-08:06:09.082405 7f1687ffca80 Bzip supported: 1
+2021/03/14-08:06:09.082406 7f1687ffca80 LZ4 supported: 1
+2021/03/14-08:06:09.082406 7f1687ffca80 ZSTDNotFinal supported: 1
+2021/03/14-08:06:09.082410 7f1687ffca80 ZSTD supported: 1
+2021/03/14-08:06:09.082413 7f1687ffca80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:06:09.082415 7f1687ffca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:06:09.082511 7f1687ffca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:06:09.082568 7f1687ffca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:06:09.082570 7f1687ffca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:06:09.082571 7f1687ffca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:06:09.082572 7f1687ffca80 Options.compaction_filter: None
+2021/03/14-08:06:09.082572 7f1687ffca80 Options.compaction_filter_factory: None
+2021/03/14-08:06:09.082573 7f1687ffca80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:06:09.082574 7f1687ffca80 Options.table_factory: BlockBasedTable
+2021/03/14-08:06:09.082591 7f1687ffca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2076800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x205bf00
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:06:09.082597 7f1687ffca80 Options.write_buffer_size: 134217728
+2021/03/14-08:06:09.082598 7f1687ffca80 Options.max_write_buffer_number: 6
+2021/03/14-08:06:09.082599 7f1687ffca80 Options.compression[0]: NoCompression
+2021/03/14-08:06:09.082599 7f1687ffca80 Options.compression[1]: NoCompression
+2021/03/14-08:06:09.082600 7f1687ffca80 Options.compression[2]: Snappy
+2021/03/14-08:06:09.082601 7f1687ffca80 Options.compression[3]: Snappy
+2021/03/14-08:06:09.082601 7f1687ffca80 Options.compression[4]: Snappy
+2021/03/14-08:06:09.082602 7f1687ffca80 Options.compression[5]: Snappy
+2021/03/14-08:06:09.082602 7f1687ffca80 Options.compression[6]: Snappy
+2021/03/14-08:06:09.082603 7f1687ffca80 Options.bottommost_compression: Disabled
+2021/03/14-08:06:09.082604 7f1687ffca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:06:09.082605 7f1687ffca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:06:09.082605 7f1687ffca80 Options.num_levels: 7
+2021/03/14-08:06:09.082606 7f1687ffca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:06:09.082606 7f1687ffca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:06:09.082607 7f1687ffca80 Options.compression_opts.window_bits: -14
+2021/03/14-08:06:09.082608 7f1687ffca80 Options.compression_opts.level: -1
+2021/03/14-08:06:09.082608 7f1687ffca80 Options.compression_opts.strategy: 0
+2021/03/14-08:06:09.082609 7f1687ffca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:06:09.082609 7f1687ffca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:06:09.082610 7f1687ffca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:06:09.082610 7f1687ffca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:06:09.082611 7f1687ffca80 Options.target_file_size_base: 67108864
+2021/03/14-08:06:09.082612 7f1687ffca80 Options.target_file_size_multiplier: 1
+2021/03/14-08:06:09.082612 7f1687ffca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:06:09.082613 7f1687ffca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:06:09.082614 7f1687ffca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:06:09.082615 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:06:09.082623 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:06:09.082624 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:06:09.082624 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:06:09.082625 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:06:09.082625 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:06:09.082626 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:06:09.082627 7f1687ffca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:06:09.082627 7f1687ffca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:06:09.082628 7f1687ffca80 Options.arena_block_size: 16777216
+2021/03/14-08:06:09.082629 7f1687ffca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:06:09.082629 7f1687ffca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:06:09.082630 7f1687ffca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:06:09.082630 7f1687ffca80 Options.disable_auto_compactions: 0
+2021/03/14-08:06:09.082632 7f1687ffca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:06:09.082633 7f1687ffca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:06:09.082633 7f1687ffca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:06:09.082634 7f1687ffca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:06:09.082635 7f1687ffca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:06:09.082635 7f1687ffca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:06:09.082636 7f1687ffca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:06:09.082637 7f1687ffca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:06:09.082637 7f1687ffca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:06:09.082638 7f1687ffca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:06:09.082639 7f1687ffca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:06:09.082639 7f1687ffca80 Options.table_properties_collectors:
+2021/03/14-08:06:09.082640 7f1687ffca80 Options.inplace_update_support: 0
+2021/03/14-08:06:09.082640 7f1687ffca80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:06:09.082641 7f1687ffca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:06:09.082642 7f1687ffca80 Options.memtable_huge_page_size: 0
+2021/03/14-08:06:09.082642 7f1687ffca80 Options.bloom_locality: 0
+2021/03/14-08:06:09.082643 7f1687ffca80 Options.max_successive_merges: 0
+2021/03/14-08:06:09.082644 7f1687ffca80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:06:09.082644 7f1687ffca80 Options.paranoid_file_checks: 0
+2021/03/14-08:06:09.082645 7f1687ffca80 Options.force_consistency_checks: 0
+2021/03/14-08:06:09.082645 7f1687ffca80 Options.report_bg_io_stats: 0
+2021/03/14-08:06:09.083022 7f1687ffca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:06:09.083025 7f1687ffca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:06:09.083191 7f1687ffca80 EVENT_LOG_v1 {"time_micros": 1615705569083180, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:06:09.083197 7f1687ffca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:06:09.793346 7f1687ffca80 EVENT_LOG_v1 {"time_micros": 1615705569793343, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705570532625 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705570532625
new file mode 100644
index 0000000..6109721
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705570532625
@@ -0,0 +1,186 @@
+2021/03/14-08:06:09.806318 7f1687ffca80 RocksDB version: 5.11.3
+2021/03/14-08:06:09.806373 7f1687ffca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:06:09.806375 7f1687ffca80 Compile date Mar 13 2021
+2021/03/14-08:06:09.806377 7f1687ffca80 DB SUMMARY
+2021/03/14-08:06:09.806550 7f1687ffca80 CURRENT file: CURRENT
+2021/03/14-08:06:09.806551 7f1687ffca80 IDENTITY file: IDENTITY
+2021/03/14-08:06:09.806568 7f1687ffca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:06:09.806570 7f1687ffca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:06:09.806571 7f1687ffca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:06:09.806576 7f1687ffca80 Options.error_if_exists: 0
+2021/03/14-08:06:09.806577 7f1687ffca80 Options.create_if_missing: 1
+2021/03/14-08:06:09.806578 7f1687ffca80 Options.paranoid_checks: 1
+2021/03/14-08:06:09.806578 7f1687ffca80 Options.env: 0x7f16889b6080
+2021/03/14-08:06:09.806579 7f1687ffca80 Options.info_log: 0x207ef60
+2021/03/14-08:06:09.806580 7f1687ffca80 Options.max_file_opening_threads: 16
+2021/03/14-08:06:09.806580 7f1687ffca80 Options.statistics: (nil)
+2021/03/14-08:06:09.806581 7f1687ffca80 Options.use_fsync: 0
+2021/03/14-08:06:09.806582 7f1687ffca80 Options.max_log_file_size: 0
+2021/03/14-08:06:09.806582 7f1687ffca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:06:09.806583 7f1687ffca80 Options.log_file_time_to_roll: 0
+2021/03/14-08:06:09.806584 7f1687ffca80 Options.keep_log_file_num: 1000
+2021/03/14-08:06:09.806584 7f1687ffca80 Options.recycle_log_file_num: 0
+2021/03/14-08:06:09.806585 7f1687ffca80 Options.allow_fallocate: 1
+2021/03/14-08:06:09.806586 7f1687ffca80 Options.allow_mmap_reads: 0
+2021/03/14-08:06:09.806586 7f1687ffca80 Options.allow_mmap_writes: 0
+2021/03/14-08:06:09.806587 7f1687ffca80 Options.use_direct_reads: 0
+2021/03/14-08:06:09.806587 7f1687ffca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:06:09.806588 7f1687ffca80 Options.create_missing_column_families: 0
+2021/03/14-08:06:09.806588 7f1687ffca80 Options.db_log_dir:
+2021/03/14-08:06:09.806589 7f1687ffca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:06:09.806590 7f1687ffca80 Options.table_cache_numshardbits: 6
+2021/03/14-08:06:09.806590 7f1687ffca80 Options.max_subcompactions: 1
+2021/03/14-08:06:09.806591 7f1687ffca80 Options.max_background_flushes: -1
+2021/03/14-08:06:09.806591 7f1687ffca80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:06:09.806592 7f1687ffca80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:06:09.806593 7f1687ffca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:06:09.806593 7f1687ffca80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:06:09.806594 7f1687ffca80 Options.advise_random_on_open: 1
+2021/03/14-08:06:09.806594 7f1687ffca80 Options.db_write_buffer_size: 0
+2021/03/14-08:06:09.806595 7f1687ffca80 Options.write_buffer_manager: 0x2066e70
+2021/03/14-08:06:09.806595 7f1687ffca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:06:09.806596 7f1687ffca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:06:09.806597 7f1687ffca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:06:09.806597 7f1687ffca80 Options.use_adaptive_mutex: 0
+2021/03/14-08:06:09.806598 7f1687ffca80 Options.rate_limiter: (nil)
+2021/03/14-08:06:09.806599 7f1687ffca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:06:09.806607 7f1687ffca80 Options.wal_recovery_mode: 2
+2021/03/14-08:06:09.806608 7f1687ffca80 Options.enable_thread_tracking: 0
+2021/03/14-08:06:09.806608 7f1687ffca80 Options.enable_pipelined_write: 0
+2021/03/14-08:06:09.806609 7f1687ffca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:06:09.806609 7f1687ffca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:06:09.806610 7f1687ffca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:06:09.806611 7f1687ffca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:06:09.806611 7f1687ffca80 Options.row_cache: None
+2021/03/14-08:06:09.806612 7f1687ffca80 Options.wal_filter: None
+2021/03/14-08:06:09.806612 7f1687ffca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:06:09.806613 7f1687ffca80 Options.allow_ingest_behind: 0
+2021/03/14-08:06:09.806614 7f1687ffca80 Options.preserve_deletes: 0
+2021/03/14-08:06:09.806614 7f1687ffca80 Options.two_write_queues: 0
+2021/03/14-08:06:09.806615 7f1687ffca80 Options.manual_wal_flush: 0
+2021/03/14-08:06:09.806616 7f1687ffca80 Options.max_background_jobs: 16
+2021/03/14-08:06:09.806616 7f1687ffca80 Options.max_background_compactions: -1
+2021/03/14-08:06:09.806617 7f1687ffca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:06:09.806618 7f1687ffca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:06:09.806618 7f1687ffca80 Options.delayed_write_rate : 16777216
+2021/03/14-08:06:09.806619 7f1687ffca80 Options.max_total_wal_size: 0
+2021/03/14-08:06:09.806619 7f1687ffca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:06:09.806620 7f1687ffca80 Options.stats_dump_period_sec: 600
+2021/03/14-08:06:09.806621 7f1687ffca80 Options.max_open_files: -1
+2021/03/14-08:06:09.806621 7f1687ffca80 Options.bytes_per_sync: 0
+2021/03/14-08:06:09.806622 7f1687ffca80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:06:09.806622 7f1687ffca80 Options.compaction_readahead_size: 0
+2021/03/14-08:06:09.806623 7f1687ffca80 Compression algorithms supported:
+2021/03/14-08:06:09.806624 7f1687ffca80 Snappy supported: 1
+2021/03/14-08:06:09.806624 7f1687ffca80 Zlib supported: 1
+2021/03/14-08:06:09.806625 7f1687ffca80 Bzip supported: 1
+2021/03/14-08:06:09.806625 7f1687ffca80 LZ4 supported: 1
+2021/03/14-08:06:09.806626 7f1687ffca80 ZSTDNotFinal supported: 1
+2021/03/14-08:06:09.806630 7f1687ffca80 ZSTD supported: 1
+2021/03/14-08:06:09.806633 7f1687ffca80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:06:09.806634 7f1687ffca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:06:09.806730 7f1687ffca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:06:09.806785 7f1687ffca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:06:09.806787 7f1687ffca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:06:09.806787 7f1687ffca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:06:09.806788 7f1687ffca80 Options.compaction_filter: None
+2021/03/14-08:06:09.806789 7f1687ffca80 Options.compaction_filter_factory: None
+2021/03/14-08:06:09.806789 7f1687ffca80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:06:09.806790 7f1687ffca80 Options.table_factory: BlockBasedTable
+2021/03/14-08:06:09.806807 7f1687ffca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2076800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x205bf00
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:06:09.806813 7f1687ffca80 Options.write_buffer_size: 134217728
+2021/03/14-08:06:09.806814 7f1687ffca80 Options.max_write_buffer_number: 6
+2021/03/14-08:06:09.806814 7f1687ffca80 Options.compression[0]: NoCompression
+2021/03/14-08:06:09.806815 7f1687ffca80 Options.compression[1]: NoCompression
+2021/03/14-08:06:09.806816 7f1687ffca80 Options.compression[2]: Snappy
+2021/03/14-08:06:09.806817 7f1687ffca80 Options.compression[3]: Snappy
+2021/03/14-08:06:09.806817 7f1687ffca80 Options.compression[4]: Snappy
+2021/03/14-08:06:09.806818 7f1687ffca80 Options.compression[5]: Snappy
+2021/03/14-08:06:09.806818 7f1687ffca80 Options.compression[6]: Snappy
+2021/03/14-08:06:09.806819 7f1687ffca80 Options.bottommost_compression: Disabled
+2021/03/14-08:06:09.806820 7f1687ffca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:06:09.806820 7f1687ffca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:06:09.806821 7f1687ffca80 Options.num_levels: 7
+2021/03/14-08:06:09.806822 7f1687ffca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:06:09.806822 7f1687ffca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:06:09.806823 7f1687ffca80 Options.compression_opts.window_bits: -14
+2021/03/14-08:06:09.806823 7f1687ffca80 Options.compression_opts.level: -1
+2021/03/14-08:06:09.806824 7f1687ffca80 Options.compression_opts.strategy: 0
+2021/03/14-08:06:09.806824 7f1687ffca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:06:09.806825 7f1687ffca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:06:09.806826 7f1687ffca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:06:09.806826 7f1687ffca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:06:09.806827 7f1687ffca80 Options.target_file_size_base: 67108864
+2021/03/14-08:06:09.806827 7f1687ffca80 Options.target_file_size_multiplier: 1
+2021/03/14-08:06:09.806828 7f1687ffca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:06:09.806829 7f1687ffca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:06:09.806829 7f1687ffca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:06:09.806831 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:06:09.806839 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:06:09.806840 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:06:09.806840 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:06:09.806841 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:06:09.806841 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:06:09.806842 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:06:09.806843 7f1687ffca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:06:09.806843 7f1687ffca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:06:09.806844 7f1687ffca80 Options.arena_block_size: 16777216
+2021/03/14-08:06:09.806844 7f1687ffca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:06:09.806845 7f1687ffca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:06:09.806846 7f1687ffca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:06:09.806846 7f1687ffca80 Options.disable_auto_compactions: 0
+2021/03/14-08:06:09.806848 7f1687ffca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:06:09.806849 7f1687ffca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:06:09.806849 7f1687ffca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:06:09.806850 7f1687ffca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:06:09.806850 7f1687ffca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:06:09.806851 7f1687ffca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:06:09.806852 7f1687ffca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:06:09.806853 7f1687ffca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:06:09.806853 7f1687ffca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:06:09.806854 7f1687ffca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:06:09.806854 7f1687ffca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:06:09.806855 7f1687ffca80 Options.table_properties_collectors:
+2021/03/14-08:06:09.806856 7f1687ffca80 Options.inplace_update_support: 0
+2021/03/14-08:06:09.806856 7f1687ffca80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:06:09.806857 7f1687ffca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:06:09.806858 7f1687ffca80 Options.memtable_huge_page_size: 0
+2021/03/14-08:06:09.806859 7f1687ffca80 Options.bloom_locality: 0
+2021/03/14-08:06:09.806859 7f1687ffca80 Options.max_successive_merges: 0
+2021/03/14-08:06:09.806860 7f1687ffca80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:06:09.806860 7f1687ffca80 Options.paranoid_file_checks: 0
+2021/03/14-08:06:09.806861 7f1687ffca80 Options.force_consistency_checks: 0
+2021/03/14-08:06:09.806861 7f1687ffca80 Options.report_bg_io_stats: 0
+2021/03/14-08:06:09.807226 7f1687ffca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:06:09.807229 7f1687ffca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:06:09.807403 7f1687ffca80 EVENT_LOG_v1 {"time_micros": 1615705569807392, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:06:09.807408 7f1687ffca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:06:10.519637 7f1687ffca80 EVENT_LOG_v1 {"time_micros": 1615705570519633, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705764363935 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705764363935
new file mode 100644
index 0000000..33b3663
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705764363935
@@ -0,0 +1,186 @@
+2021/03/14-08:06:10.533045 7f1687ffca80 RocksDB version: 5.11.3
+2021/03/14-08:06:10.533100 7f1687ffca80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:06:10.533101 7f1687ffca80 Compile date Mar 13 2021
+2021/03/14-08:06:10.533104 7f1687ffca80 DB SUMMARY
+2021/03/14-08:06:10.533280 7f1687ffca80 CURRENT file: CURRENT
+2021/03/14-08:06:10.533281 7f1687ffca80 IDENTITY file: IDENTITY
+2021/03/14-08:06:10.533298 7f1687ffca80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:06:10.533299 7f1687ffca80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:06:10.533300 7f1687ffca80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:06:10.533306 7f1687ffca80 Options.error_if_exists: 0
+2021/03/14-08:06:10.533307 7f1687ffca80 Options.create_if_missing: 1
+2021/03/14-08:06:10.533307 7f1687ffca80 Options.paranoid_checks: 1
+2021/03/14-08:06:10.533308 7f1687ffca80 Options.env: 0x7f16889b6080
+2021/03/14-08:06:10.533309 7f1687ffca80 Options.info_log: 0x207ef60
+2021/03/14-08:06:10.533309 7f1687ffca80 Options.max_file_opening_threads: 16
+2021/03/14-08:06:10.533310 7f1687ffca80 Options.statistics: (nil)
+2021/03/14-08:06:10.533310 7f1687ffca80 Options.use_fsync: 0
+2021/03/14-08:06:10.533311 7f1687ffca80 Options.max_log_file_size: 0
+2021/03/14-08:06:10.533312 7f1687ffca80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:06:10.533312 7f1687ffca80 Options.log_file_time_to_roll: 0
+2021/03/14-08:06:10.533313 7f1687ffca80 Options.keep_log_file_num: 1000
+2021/03/14-08:06:10.533313 7f1687ffca80 Options.recycle_log_file_num: 0
+2021/03/14-08:06:10.533314 7f1687ffca80 Options.allow_fallocate: 1
+2021/03/14-08:06:10.533315 7f1687ffca80 Options.allow_mmap_reads: 0
+2021/03/14-08:06:10.533315 7f1687ffca80 Options.allow_mmap_writes: 0
+2021/03/14-08:06:10.533316 7f1687ffca80 Options.use_direct_reads: 0
+2021/03/14-08:06:10.533316 7f1687ffca80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:06:10.533317 7f1687ffca80 Options.create_missing_column_families: 0
+2021/03/14-08:06:10.533317 7f1687ffca80 Options.db_log_dir:
+2021/03/14-08:06:10.533318 7f1687ffca80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:06:10.533319 7f1687ffca80 Options.table_cache_numshardbits: 6
+2021/03/14-08:06:10.533319 7f1687ffca80 Options.max_subcompactions: 1
+2021/03/14-08:06:10.533320 7f1687ffca80 Options.max_background_flushes: -1
+2021/03/14-08:06:10.533320 7f1687ffca80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:06:10.533321 7f1687ffca80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:06:10.533321 7f1687ffca80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:06:10.533322 7f1687ffca80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:06:10.533323 7f1687ffca80 Options.advise_random_on_open: 1
+2021/03/14-08:06:10.533323 7f1687ffca80 Options.db_write_buffer_size: 0
+2021/03/14-08:06:10.533324 7f1687ffca80 Options.write_buffer_manager: 0x2066e70
+2021/03/14-08:06:10.533324 7f1687ffca80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:06:10.533325 7f1687ffca80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:06:10.533325 7f1687ffca80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:06:10.533326 7f1687ffca80 Options.use_adaptive_mutex: 0
+2021/03/14-08:06:10.533327 7f1687ffca80 Options.rate_limiter: (nil)
+2021/03/14-08:06:10.533328 7f1687ffca80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:06:10.533339 7f1687ffca80 Options.wal_recovery_mode: 2
+2021/03/14-08:06:10.533341 7f1687ffca80 Options.enable_thread_tracking: 0
+2021/03/14-08:06:10.533342 7f1687ffca80 Options.enable_pipelined_write: 0
+2021/03/14-08:06:10.533342 7f1687ffca80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:06:10.533343 7f1687ffca80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:06:10.533344 7f1687ffca80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:06:10.533346 7f1687ffca80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:06:10.533346 7f1687ffca80 Options.row_cache: None
+2021/03/14-08:06:10.533347 7f1687ffca80 Options.wal_filter: None
+2021/03/14-08:06:10.533349 7f1687ffca80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:06:10.533350 7f1687ffca80 Options.allow_ingest_behind: 0
+2021/03/14-08:06:10.533351 7f1687ffca80 Options.preserve_deletes: 0
+2021/03/14-08:06:10.533352 7f1687ffca80 Options.two_write_queues: 0
+2021/03/14-08:06:10.533352 7f1687ffca80 Options.manual_wal_flush: 0
+2021/03/14-08:06:10.533354 7f1687ffca80 Options.max_background_jobs: 16
+2021/03/14-08:06:10.533355 7f1687ffca80 Options.max_background_compactions: -1
+2021/03/14-08:06:10.533355 7f1687ffca80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:06:10.533356 7f1687ffca80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:06:10.533357 7f1687ffca80 Options.delayed_write_rate : 16777216
+2021/03/14-08:06:10.533357 7f1687ffca80 Options.max_total_wal_size: 0
+2021/03/14-08:06:10.533358 7f1687ffca80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:06:10.533358 7f1687ffca80 Options.stats_dump_period_sec: 600
+2021/03/14-08:06:10.533359 7f1687ffca80 Options.max_open_files: -1
+2021/03/14-08:06:10.533360 7f1687ffca80 Options.bytes_per_sync: 0
+2021/03/14-08:06:10.533360 7f1687ffca80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:06:10.533361 7f1687ffca80 Options.compaction_readahead_size: 0
+2021/03/14-08:06:10.533361 7f1687ffca80 Compression algorithms supported:
+2021/03/14-08:06:10.533362 7f1687ffca80 Snappy supported: 1
+2021/03/14-08:06:10.533362 7f1687ffca80 Zlib supported: 1
+2021/03/14-08:06:10.533363 7f1687ffca80 Bzip supported: 1
+2021/03/14-08:06:10.533364 7f1687ffca80 LZ4 supported: 1
+2021/03/14-08:06:10.533364 7f1687ffca80 ZSTDNotFinal supported: 1
+2021/03/14-08:06:10.533369 7f1687ffca80 ZSTD supported: 1
+2021/03/14-08:06:10.533372 7f1687ffca80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:06:10.533373 7f1687ffca80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:06:10.533483 7f1687ffca80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:06:10.533539 7f1687ffca80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:06:10.533541 7f1687ffca80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:06:10.533542 7f1687ffca80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:06:10.533543 7f1687ffca80 Options.compaction_filter: None
+2021/03/14-08:06:10.533543 7f1687ffca80 Options.compaction_filter_factory: None
+2021/03/14-08:06:10.533544 7f1687ffca80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:06:10.533545 7f1687ffca80 Options.table_factory: BlockBasedTable
+2021/03/14-08:06:10.533561 7f1687ffca80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2076800)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x205bf00
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:06:10.533566 7f1687ffca80 Options.write_buffer_size: 134217728
+2021/03/14-08:06:10.533567 7f1687ffca80 Options.max_write_buffer_number: 6
+2021/03/14-08:06:10.533568 7f1687ffca80 Options.compression[0]: NoCompression
+2021/03/14-08:06:10.533568 7f1687ffca80 Options.compression[1]: NoCompression
+2021/03/14-08:06:10.533569 7f1687ffca80 Options.compression[2]: Snappy
+2021/03/14-08:06:10.533570 7f1687ffca80 Options.compression[3]: Snappy
+2021/03/14-08:06:10.533570 7f1687ffca80 Options.compression[4]: Snappy
+2021/03/14-08:06:10.533571 7f1687ffca80 Options.compression[5]: Snappy
+2021/03/14-08:06:10.533571 7f1687ffca80 Options.compression[6]: Snappy
+2021/03/14-08:06:10.533572 7f1687ffca80 Options.bottommost_compression: Disabled
+2021/03/14-08:06:10.533573 7f1687ffca80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:06:10.533573 7f1687ffca80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:06:10.533574 7f1687ffca80 Options.num_levels: 7
+2021/03/14-08:06:10.533575 7f1687ffca80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:06:10.533575 7f1687ffca80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:06:10.533576 7f1687ffca80 Options.compression_opts.window_bits: -14
+2021/03/14-08:06:10.533576 7f1687ffca80 Options.compression_opts.level: -1
+2021/03/14-08:06:10.533577 7f1687ffca80 Options.compression_opts.strategy: 0
+2021/03/14-08:06:10.533578 7f1687ffca80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:06:10.533578 7f1687ffca80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:06:10.533579 7f1687ffca80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:06:10.533579 7f1687ffca80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:06:10.533580 7f1687ffca80 Options.target_file_size_base: 67108864
+2021/03/14-08:06:10.533580 7f1687ffca80 Options.target_file_size_multiplier: 1
+2021/03/14-08:06:10.533581 7f1687ffca80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:06:10.533582 7f1687ffca80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:06:10.533582 7f1687ffca80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:06:10.533584 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:06:10.533592 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:06:10.533592 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:06:10.533593 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:06:10.533594 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:06:10.533594 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:06:10.533595 7f1687ffca80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:06:10.533595 7f1687ffca80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:06:10.533596 7f1687ffca80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:06:10.533596 7f1687ffca80 Options.arena_block_size: 16777216
+2021/03/14-08:06:10.533597 7f1687ffca80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:06:10.533598 7f1687ffca80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:06:10.533598 7f1687ffca80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:06:10.533599 7f1687ffca80 Options.disable_auto_compactions: 0
+2021/03/14-08:06:10.533600 7f1687ffca80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:06:10.533601 7f1687ffca80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:06:10.533602 7f1687ffca80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:06:10.533602 7f1687ffca80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:06:10.533603 7f1687ffca80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:06:10.533603 7f1687ffca80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:06:10.533604 7f1687ffca80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:06:10.533605 7f1687ffca80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:06:10.533606 7f1687ffca80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:06:10.533606 7f1687ffca80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:06:10.533607 7f1687ffca80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:06:10.533608 7f1687ffca80 Options.table_properties_collectors:
+2021/03/14-08:06:10.533608 7f1687ffca80 Options.inplace_update_support: 0
+2021/03/14-08:06:10.533609 7f1687ffca80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:06:10.533609 7f1687ffca80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:06:10.533610 7f1687ffca80 Options.memtable_huge_page_size: 0
+2021/03/14-08:06:10.533611 7f1687ffca80 Options.bloom_locality: 0
+2021/03/14-08:06:10.533611 7f1687ffca80 Options.max_successive_merges: 0
+2021/03/14-08:06:10.533612 7f1687ffca80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:06:10.533613 7f1687ffca80 Options.paranoid_file_checks: 0
+2021/03/14-08:06:10.533613 7f1687ffca80 Options.force_consistency_checks: 0
+2021/03/14-08:06:10.533614 7f1687ffca80 Options.report_bg_io_stats: 0
+2021/03/14-08:06:10.534004 7f1687ffca80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:06:10.534006 7f1687ffca80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:06:10.534176 7f1687ffca80 EVENT_LOG_v1 {"time_micros": 1615705570534166, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:06:10.534182 7f1687ffca80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:06:11.240680 7f1687ffca80 EVENT_LOG_v1 {"time_micros": 1615705571240677, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705765131993 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705765131993
new file mode 100644
index 0000000..3503a16
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705765131993
@@ -0,0 +1,186 @@
+2021/03/14-08:09:24.364399 7f96b0113a80 RocksDB version: 5.11.3
+2021/03/14-08:09:24.364457 7f96b0113a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:09:24.364459 7f96b0113a80 Compile date Mar 13 2021
+2021/03/14-08:09:24.364466 7f96b0113a80 DB SUMMARY
+2021/03/14-08:09:24.364645 7f96b0113a80 CURRENT file: CURRENT
+2021/03/14-08:09:24.364646 7f96b0113a80 IDENTITY file: IDENTITY
+2021/03/14-08:09:24.364663 7f96b0113a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:09:24.364665 7f96b0113a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:09:24.364666 7f96b0113a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:09:24.364672 7f96b0113a80 Options.error_if_exists: 0
+2021/03/14-08:09:24.364672 7f96b0113a80 Options.create_if_missing: 1
+2021/03/14-08:09:24.364673 7f96b0113a80 Options.paranoid_checks: 1
+2021/03/14-08:09:24.364674 7f96b0113a80 Options.env: 0x7f96b0acd080
+2021/03/14-08:09:24.364674 7f96b0113a80 Options.info_log: 0x22c0fa0
+2021/03/14-08:09:24.364675 7f96b0113a80 Options.max_file_opening_threads: 16
+2021/03/14-08:09:24.364675 7f96b0113a80 Options.statistics: (nil)
+2021/03/14-08:09:24.364676 7f96b0113a80 Options.use_fsync: 0
+2021/03/14-08:09:24.364677 7f96b0113a80 Options.max_log_file_size: 0
+2021/03/14-08:09:24.364677 7f96b0113a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:09:24.364678 7f96b0113a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:09:24.364678 7f96b0113a80 Options.keep_log_file_num: 1000
+2021/03/14-08:09:24.364679 7f96b0113a80 Options.recycle_log_file_num: 0
+2021/03/14-08:09:24.364680 7f96b0113a80 Options.allow_fallocate: 1
+2021/03/14-08:09:24.364680 7f96b0113a80 Options.allow_mmap_reads: 0
+2021/03/14-08:09:24.364681 7f96b0113a80 Options.allow_mmap_writes: 0
+2021/03/14-08:09:24.364681 7f96b0113a80 Options.use_direct_reads: 0
+2021/03/14-08:09:24.364682 7f96b0113a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:09:24.364682 7f96b0113a80 Options.create_missing_column_families: 0
+2021/03/14-08:09:24.364683 7f96b0113a80 Options.db_log_dir:
+2021/03/14-08:09:24.364684 7f96b0113a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:09:24.364684 7f96b0113a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:09:24.364685 7f96b0113a80 Options.max_subcompactions: 1
+2021/03/14-08:09:24.364685 7f96b0113a80 Options.max_background_flushes: -1
+2021/03/14-08:09:24.364686 7f96b0113a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:09:24.364687 7f96b0113a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:09:24.364687 7f96b0113a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:09:24.364688 7f96b0113a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:09:24.364688 7f96b0113a80 Options.advise_random_on_open: 1
+2021/03/14-08:09:24.364689 7f96b0113a80 Options.db_write_buffer_size: 0
+2021/03/14-08:09:24.364689 7f96b0113a80 Options.write_buffer_manager: 0x22a8e90
+2021/03/14-08:09:24.364690 7f96b0113a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:09:24.364691 7f96b0113a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:09:24.364691 7f96b0113a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:09:24.364692 7f96b0113a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:09:24.364692 7f96b0113a80 Options.rate_limiter: (nil)
+2021/03/14-08:09:24.364694 7f96b0113a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:09:24.364702 7f96b0113a80 Options.wal_recovery_mode: 2
+2021/03/14-08:09:24.364702 7f96b0113a80 Options.enable_thread_tracking: 0
+2021/03/14-08:09:24.364703 7f96b0113a80 Options.enable_pipelined_write: 0
+2021/03/14-08:09:24.364703 7f96b0113a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:09:24.364704 7f96b0113a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:09:24.364705 7f96b0113a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:09:24.364705 7f96b0113a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:09:24.364706 7f96b0113a80 Options.row_cache: None
+2021/03/14-08:09:24.364706 7f96b0113a80 Options.wal_filter: None
+2021/03/14-08:09:24.364707 7f96b0113a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:09:24.364708 7f96b0113a80 Options.allow_ingest_behind: 0
+2021/03/14-08:09:24.364708 7f96b0113a80 Options.preserve_deletes: 0
+2021/03/14-08:09:24.364709 7f96b0113a80 Options.two_write_queues: 0
+2021/03/14-08:09:24.364709 7f96b0113a80 Options.manual_wal_flush: 0
+2021/03/14-08:09:24.364710 7f96b0113a80 Options.max_background_jobs: 16
+2021/03/14-08:09:24.364711 7f96b0113a80 Options.max_background_compactions: -1
+2021/03/14-08:09:24.364711 7f96b0113a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:09:24.364712 7f96b0113a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:09:24.364713 7f96b0113a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:09:24.364713 7f96b0113a80 Options.max_total_wal_size: 0
+2021/03/14-08:09:24.364714 7f96b0113a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:09:24.364714 7f96b0113a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:09:24.364715 7f96b0113a80 Options.max_open_files: -1
+2021/03/14-08:09:24.364715 7f96b0113a80 Options.bytes_per_sync: 0
+2021/03/14-08:09:24.364716 7f96b0113a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:09:24.364716 7f96b0113a80 Options.compaction_readahead_size: 0
+2021/03/14-08:09:24.364717 7f96b0113a80 Compression algorithms supported:
+2021/03/14-08:09:24.364718 7f96b0113a80 Snappy supported: 1
+2021/03/14-08:09:24.364718 7f96b0113a80 Zlib supported: 1
+2021/03/14-08:09:24.364719 7f96b0113a80 Bzip supported: 1
+2021/03/14-08:09:24.364719 7f96b0113a80 LZ4 supported: 1
+2021/03/14-08:09:24.364720 7f96b0113a80 ZSTDNotFinal supported: 1
+2021/03/14-08:09:24.364725 7f96b0113a80 ZSTD supported: 1
+2021/03/14-08:09:24.364728 7f96b0113a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:09:24.364729 7f96b0113a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:09:24.364825 7f96b0113a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:09:24.364880 7f96b0113a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:09:24.364882 7f96b0113a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:09:24.364883 7f96b0113a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:09:24.364883 7f96b0113a80 Options.compaction_filter: None
+2021/03/14-08:09:24.364884 7f96b0113a80 Options.compaction_filter_factory: None
+2021/03/14-08:09:24.364885 7f96b0113a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:09:24.364885 7f96b0113a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:09:24.364902 7f96b0113a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22b8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x229df20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:09:24.364907 7f96b0113a80 Options.write_buffer_size: 134217728
+2021/03/14-08:09:24.364908 7f96b0113a80 Options.max_write_buffer_number: 6
+2021/03/14-08:09:24.364909 7f96b0113a80 Options.compression[0]: NoCompression
+2021/03/14-08:09:24.364909 7f96b0113a80 Options.compression[1]: NoCompression
+2021/03/14-08:09:24.364910 7f96b0113a80 Options.compression[2]: Snappy
+2021/03/14-08:09:24.364911 7f96b0113a80 Options.compression[3]: Snappy
+2021/03/14-08:09:24.364911 7f96b0113a80 Options.compression[4]: Snappy
+2021/03/14-08:09:24.364912 7f96b0113a80 Options.compression[5]: Snappy
+2021/03/14-08:09:24.364912 7f96b0113a80 Options.compression[6]: Snappy
+2021/03/14-08:09:24.364913 7f96b0113a80 Options.bottommost_compression: Disabled
+2021/03/14-08:09:24.364914 7f96b0113a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:09:24.364914 7f96b0113a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:09:24.364915 7f96b0113a80 Options.num_levels: 7
+2021/03/14-08:09:24.364916 7f96b0113a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:09:24.364916 7f96b0113a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:09:24.364917 7f96b0113a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:09:24.364917 7f96b0113a80 Options.compression_opts.level: -1
+2021/03/14-08:09:24.364918 7f96b0113a80 Options.compression_opts.strategy: 0
+2021/03/14-08:09:24.364918 7f96b0113a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:09:24.364919 7f96b0113a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:09:24.364920 7f96b0113a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:09:24.364920 7f96b0113a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:09:24.364921 7f96b0113a80 Options.target_file_size_base: 67108864
+2021/03/14-08:09:24.364921 7f96b0113a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:09:24.364922 7f96b0113a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:09:24.364922 7f96b0113a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:09:24.364923 7f96b0113a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:09:24.364925 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:09:24.364932 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:09:24.364932 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:09:24.364933 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:09:24.364934 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:09:24.364934 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:09:24.364935 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:09:24.364935 7f96b0113a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:09:24.364936 7f96b0113a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:09:24.364936 7f96b0113a80 Options.arena_block_size: 16777216
+2021/03/14-08:09:24.364937 7f96b0113a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:09:24.364938 7f96b0113a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:09:24.364938 7f96b0113a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:09:24.364939 7f96b0113a80 Options.disable_auto_compactions: 0
+2021/03/14-08:09:24.364940 7f96b0113a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:09:24.364941 7f96b0113a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:09:24.364942 7f96b0113a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:09:24.364942 7f96b0113a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:09:24.364943 7f96b0113a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:09:24.364944 7f96b0113a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:09:24.364944 7f96b0113a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:09:24.364945 7f96b0113a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:09:24.364946 7f96b0113a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:09:24.364946 7f96b0113a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:09:24.364947 7f96b0113a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:09:24.364948 7f96b0113a80 Options.table_properties_collectors:
+2021/03/14-08:09:24.364948 7f96b0113a80 Options.inplace_update_support: 0
+2021/03/14-08:09:24.364949 7f96b0113a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:09:24.364949 7f96b0113a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:09:24.364950 7f96b0113a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:09:24.364951 7f96b0113a80 Options.bloom_locality: 0
+2021/03/14-08:09:24.364951 7f96b0113a80 Options.max_successive_merges: 0
+2021/03/14-08:09:24.364952 7f96b0113a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:09:24.364952 7f96b0113a80 Options.paranoid_file_checks: 0
+2021/03/14-08:09:24.364953 7f96b0113a80 Options.force_consistency_checks: 0
+2021/03/14-08:09:24.364953 7f96b0113a80 Options.report_bg_io_stats: 0
+2021/03/14-08:09:24.365344 7f96b0113a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:09:24.365346 7f96b0113a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:09:24.365511 7f96b0113a80 EVENT_LOG_v1 {"time_micros": 1615705764365501, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:09:24.365517 7f96b0113a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:09:25.119350 7f96b0113a80 EVENT_LOG_v1 {"time_micros": 1615705765119346, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705765891161 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705765891161
new file mode 100644
index 0000000..876c517
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705765891161
@@ -0,0 +1,186 @@
+2021/03/14-08:09:25.132426 7f96b0113a80 RocksDB version: 5.11.3
+2021/03/14-08:09:25.132480 7f96b0113a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:09:25.132482 7f96b0113a80 Compile date Mar 13 2021
+2021/03/14-08:09:25.132486 7f96b0113a80 DB SUMMARY
+2021/03/14-08:09:25.132659 7f96b0113a80 CURRENT file: CURRENT
+2021/03/14-08:09:25.132660 7f96b0113a80 IDENTITY file: IDENTITY
+2021/03/14-08:09:25.132677 7f96b0113a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:09:25.132678 7f96b0113a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:09:25.132679 7f96b0113a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:09:25.132685 7f96b0113a80 Options.error_if_exists: 0
+2021/03/14-08:09:25.132686 7f96b0113a80 Options.create_if_missing: 1
+2021/03/14-08:09:25.132686 7f96b0113a80 Options.paranoid_checks: 1
+2021/03/14-08:09:25.132687 7f96b0113a80 Options.env: 0x7f96b0acd080
+2021/03/14-08:09:25.132687 7f96b0113a80 Options.info_log: 0x22c0fa0
+2021/03/14-08:09:25.132688 7f96b0113a80 Options.max_file_opening_threads: 16
+2021/03/14-08:09:25.132689 7f96b0113a80 Options.statistics: (nil)
+2021/03/14-08:09:25.132689 7f96b0113a80 Options.use_fsync: 0
+2021/03/14-08:09:25.132690 7f96b0113a80 Options.max_log_file_size: 0
+2021/03/14-08:09:25.132691 7f96b0113a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:09:25.132691 7f96b0113a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:09:25.132692 7f96b0113a80 Options.keep_log_file_num: 1000
+2021/03/14-08:09:25.132692 7f96b0113a80 Options.recycle_log_file_num: 0
+2021/03/14-08:09:25.132693 7f96b0113a80 Options.allow_fallocate: 1
+2021/03/14-08:09:25.132694 7f96b0113a80 Options.allow_mmap_reads: 0
+2021/03/14-08:09:25.132694 7f96b0113a80 Options.allow_mmap_writes: 0
+2021/03/14-08:09:25.132695 7f96b0113a80 Options.use_direct_reads: 0
+2021/03/14-08:09:25.132695 7f96b0113a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:09:25.132696 7f96b0113a80 Options.create_missing_column_families: 0
+2021/03/14-08:09:25.132696 7f96b0113a80 Options.db_log_dir:
+2021/03/14-08:09:25.132697 7f96b0113a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:09:25.132697 7f96b0113a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:09:25.132698 7f96b0113a80 Options.max_subcompactions: 1
+2021/03/14-08:09:25.132699 7f96b0113a80 Options.max_background_flushes: -1
+2021/03/14-08:09:25.132699 7f96b0113a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:09:25.132700 7f96b0113a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:09:25.132700 7f96b0113a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:09:25.132701 7f96b0113a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:09:25.132702 7f96b0113a80 Options.advise_random_on_open: 1
+2021/03/14-08:09:25.132702 7f96b0113a80 Options.db_write_buffer_size: 0
+2021/03/14-08:09:25.132703 7f96b0113a80 Options.write_buffer_manager: 0x22a8e90
+2021/03/14-08:09:25.132703 7f96b0113a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:09:25.132704 7f96b0113a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:09:25.132704 7f96b0113a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:09:25.132705 7f96b0113a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:09:25.132705 7f96b0113a80 Options.rate_limiter: (nil)
+2021/03/14-08:09:25.132707 7f96b0113a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:09:25.132714 7f96b0113a80 Options.wal_recovery_mode: 2
+2021/03/14-08:09:25.132714 7f96b0113a80 Options.enable_thread_tracking: 0
+2021/03/14-08:09:25.132715 7f96b0113a80 Options.enable_pipelined_write: 0
+2021/03/14-08:09:25.132715 7f96b0113a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:09:25.132716 7f96b0113a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:09:25.132716 7f96b0113a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:09:25.132717 7f96b0113a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:09:25.132718 7f96b0113a80 Options.row_cache: None
+2021/03/14-08:09:25.132718 7f96b0113a80 Options.wal_filter: None
+2021/03/14-08:09:25.132719 7f96b0113a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:09:25.132719 7f96b0113a80 Options.allow_ingest_behind: 0
+2021/03/14-08:09:25.132720 7f96b0113a80 Options.preserve_deletes: 0
+2021/03/14-08:09:25.132720 7f96b0113a80 Options.two_write_queues: 0
+2021/03/14-08:09:25.132721 7f96b0113a80 Options.manual_wal_flush: 0
+2021/03/14-08:09:25.132722 7f96b0113a80 Options.max_background_jobs: 16
+2021/03/14-08:09:25.132723 7f96b0113a80 Options.max_background_compactions: -1
+2021/03/14-08:09:25.132723 7f96b0113a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:09:25.132724 7f96b0113a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:09:25.132724 7f96b0113a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:09:25.132725 7f96b0113a80 Options.max_total_wal_size: 0
+2021/03/14-08:09:25.132726 7f96b0113a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:09:25.132726 7f96b0113a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:09:25.132727 7f96b0113a80 Options.max_open_files: -1
+2021/03/14-08:09:25.132727 7f96b0113a80 Options.bytes_per_sync: 0
+2021/03/14-08:09:25.132728 7f96b0113a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:09:25.132729 7f96b0113a80 Options.compaction_readahead_size: 0
+2021/03/14-08:09:25.132729 7f96b0113a80 Compression algorithms supported:
+2021/03/14-08:09:25.132730 7f96b0113a80 Snappy supported: 1
+2021/03/14-08:09:25.132730 7f96b0113a80 Zlib supported: 1
+2021/03/14-08:09:25.132731 7f96b0113a80 Bzip supported: 1
+2021/03/14-08:09:25.132731 7f96b0113a80 LZ4 supported: 1
+2021/03/14-08:09:25.132732 7f96b0113a80 ZSTDNotFinal supported: 1
+2021/03/14-08:09:25.132736 7f96b0113a80 ZSTD supported: 1
+2021/03/14-08:09:25.132739 7f96b0113a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:09:25.132740 7f96b0113a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:09:25.132832 7f96b0113a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:09:25.132885 7f96b0113a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:09:25.132887 7f96b0113a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:09:25.132888 7f96b0113a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:09:25.132889 7f96b0113a80 Options.compaction_filter: None
+2021/03/14-08:09:25.132889 7f96b0113a80 Options.compaction_filter_factory: None
+2021/03/14-08:09:25.132890 7f96b0113a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:09:25.132891 7f96b0113a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:09:25.132907 7f96b0113a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22b8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x229df20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:09:25.132912 7f96b0113a80 Options.write_buffer_size: 134217728
+2021/03/14-08:09:25.132913 7f96b0113a80 Options.max_write_buffer_number: 6
+2021/03/14-08:09:25.132914 7f96b0113a80 Options.compression[0]: NoCompression
+2021/03/14-08:09:25.132914 7f96b0113a80 Options.compression[1]: NoCompression
+2021/03/14-08:09:25.132915 7f96b0113a80 Options.compression[2]: Snappy
+2021/03/14-08:09:25.132916 7f96b0113a80 Options.compression[3]: Snappy
+2021/03/14-08:09:25.132916 7f96b0113a80 Options.compression[4]: Snappy
+2021/03/14-08:09:25.132917 7f96b0113a80 Options.compression[5]: Snappy
+2021/03/14-08:09:25.132917 7f96b0113a80 Options.compression[6]: Snappy
+2021/03/14-08:09:25.132918 7f96b0113a80 Options.bottommost_compression: Disabled
+2021/03/14-08:09:25.132919 7f96b0113a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:09:25.132920 7f96b0113a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:09:25.132920 7f96b0113a80 Options.num_levels: 7
+2021/03/14-08:09:25.132921 7f96b0113a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:09:25.132921 7f96b0113a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:09:25.132922 7f96b0113a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:09:25.132923 7f96b0113a80 Options.compression_opts.level: -1
+2021/03/14-08:09:25.132923 7f96b0113a80 Options.compression_opts.strategy: 0
+2021/03/14-08:09:25.132924 7f96b0113a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:09:25.132924 7f96b0113a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:09:25.132925 7f96b0113a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:09:25.132925 7f96b0113a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:09:25.132926 7f96b0113a80 Options.target_file_size_base: 67108864
+2021/03/14-08:09:25.132927 7f96b0113a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:09:25.132927 7f96b0113a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:09:25.132928 7f96b0113a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:09:25.132928 7f96b0113a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:09:25.132930 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:09:25.132937 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:09:25.132938 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:09:25.132939 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:09:25.132939 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:09:25.132940 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:09:25.132940 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:09:25.132941 7f96b0113a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:09:25.132941 7f96b0113a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:09:25.132942 7f96b0113a80 Options.arena_block_size: 16777216
+2021/03/14-08:09:25.132943 7f96b0113a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:09:25.132943 7f96b0113a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:09:25.132944 7f96b0113a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:09:25.132944 7f96b0113a80 Options.disable_auto_compactions: 0
+2021/03/14-08:09:25.132946 7f96b0113a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:09:25.132947 7f96b0113a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:09:25.132947 7f96b0113a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:09:25.132948 7f96b0113a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:09:25.132948 7f96b0113a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:09:25.132949 7f96b0113a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:09:25.132950 7f96b0113a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:09:25.132951 7f96b0113a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:09:25.132951 7f96b0113a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:09:25.132952 7f96b0113a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:09:25.132952 7f96b0113a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:09:25.132953 7f96b0113a80 Options.table_properties_collectors:
+2021/03/14-08:09:25.132953 7f96b0113a80 Options.inplace_update_support: 0
+2021/03/14-08:09:25.132954 7f96b0113a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:09:25.132955 7f96b0113a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:09:25.132955 7f96b0113a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:09:25.132956 7f96b0113a80 Options.bloom_locality: 0
+2021/03/14-08:09:25.132956 7f96b0113a80 Options.max_successive_merges: 0
+2021/03/14-08:09:25.132957 7f96b0113a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:09:25.132958 7f96b0113a80 Options.paranoid_file_checks: 0
+2021/03/14-08:09:25.132958 7f96b0113a80 Options.force_consistency_checks: 0
+2021/03/14-08:09:25.132959 7f96b0113a80 Options.report_bg_io_stats: 0
+2021/03/14-08:09:25.133339 7f96b0113a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:09:25.133342 7f96b0113a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:09:25.133510 7f96b0113a80 EVENT_LOG_v1 {"time_micros": 1615705765133500, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:09:25.133515 7f96b0113a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:09:25.878281 7f96b0113a80 EVENT_LOG_v1 {"time_micros": 1615705765878277, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705766656096 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705766656096
new file mode 100644
index 0000000..5e34034
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705766656096
@@ -0,0 +1,186 @@
+2021/03/14-08:09:25.891653 7f96b0113a80 RocksDB version: 5.11.3
+2021/03/14-08:09:25.891713 7f96b0113a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:09:25.891715 7f96b0113a80 Compile date Mar 13 2021
+2021/03/14-08:09:25.891720 7f96b0113a80 DB SUMMARY
+2021/03/14-08:09:25.891901 7f96b0113a80 CURRENT file: CURRENT
+2021/03/14-08:09:25.891902 7f96b0113a80 IDENTITY file: IDENTITY
+2021/03/14-08:09:25.891920 7f96b0113a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:09:25.891922 7f96b0113a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:09:25.891923 7f96b0113a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:09:25.891929 7f96b0113a80 Options.error_if_exists: 0
+2021/03/14-08:09:25.891930 7f96b0113a80 Options.create_if_missing: 1
+2021/03/14-08:09:25.891930 7f96b0113a80 Options.paranoid_checks: 1
+2021/03/14-08:09:25.891931 7f96b0113a80 Options.env: 0x7f96b0acd080
+2021/03/14-08:09:25.891932 7f96b0113a80 Options.info_log: 0x22c0fa0
+2021/03/14-08:09:25.891932 7f96b0113a80 Options.max_file_opening_threads: 16
+2021/03/14-08:09:25.891933 7f96b0113a80 Options.statistics: (nil)
+2021/03/14-08:09:25.891934 7f96b0113a80 Options.use_fsync: 0
+2021/03/14-08:09:25.891934 7f96b0113a80 Options.max_log_file_size: 0
+2021/03/14-08:09:25.891935 7f96b0113a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:09:25.891936 7f96b0113a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:09:25.891936 7f96b0113a80 Options.keep_log_file_num: 1000
+2021/03/14-08:09:25.891937 7f96b0113a80 Options.recycle_log_file_num: 0
+2021/03/14-08:09:25.891937 7f96b0113a80 Options.allow_fallocate: 1
+2021/03/14-08:09:25.891938 7f96b0113a80 Options.allow_mmap_reads: 0
+2021/03/14-08:09:25.891939 7f96b0113a80 Options.allow_mmap_writes: 0
+2021/03/14-08:09:25.891939 7f96b0113a80 Options.use_direct_reads: 0
+2021/03/14-08:09:25.891940 7f96b0113a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:09:25.891940 7f96b0113a80 Options.create_missing_column_families: 0
+2021/03/14-08:09:25.891941 7f96b0113a80 Options.db_log_dir:
+2021/03/14-08:09:25.891942 7f96b0113a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:09:25.891942 7f96b0113a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:09:25.891943 7f96b0113a80 Options.max_subcompactions: 1
+2021/03/14-08:09:25.891943 7f96b0113a80 Options.max_background_flushes: -1
+2021/03/14-08:09:25.891944 7f96b0113a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:09:25.891945 7f96b0113a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:09:25.891945 7f96b0113a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:09:25.891946 7f96b0113a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:09:25.891947 7f96b0113a80 Options.advise_random_on_open: 1
+2021/03/14-08:09:25.891947 7f96b0113a80 Options.db_write_buffer_size: 0
+2021/03/14-08:09:25.891948 7f96b0113a80 Options.write_buffer_manager: 0x22a8e90
+2021/03/14-08:09:25.891948 7f96b0113a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:09:25.891949 7f96b0113a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:09:25.891950 7f96b0113a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:09:25.891950 7f96b0113a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:09:25.891951 7f96b0113a80 Options.rate_limiter: (nil)
+2021/03/14-08:09:25.891952 7f96b0113a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:09:25.891960 7f96b0113a80 Options.wal_recovery_mode: 2
+2021/03/14-08:09:25.891961 7f96b0113a80 Options.enable_thread_tracking: 0
+2021/03/14-08:09:25.891962 7f96b0113a80 Options.enable_pipelined_write: 0
+2021/03/14-08:09:25.891962 7f96b0113a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:09:25.891963 7f96b0113a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:09:25.891963 7f96b0113a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:09:25.891964 7f96b0113a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:09:25.891965 7f96b0113a80 Options.row_cache: None
+2021/03/14-08:09:25.891965 7f96b0113a80 Options.wal_filter: None
+2021/03/14-08:09:25.891966 7f96b0113a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:09:25.891966 7f96b0113a80 Options.allow_ingest_behind: 0
+2021/03/14-08:09:25.891967 7f96b0113a80 Options.preserve_deletes: 0
+2021/03/14-08:09:25.891968 7f96b0113a80 Options.two_write_queues: 0
+2021/03/14-08:09:25.891968 7f96b0113a80 Options.manual_wal_flush: 0
+2021/03/14-08:09:25.891969 7f96b0113a80 Options.max_background_jobs: 16
+2021/03/14-08:09:25.891970 7f96b0113a80 Options.max_background_compactions: -1
+2021/03/14-08:09:25.891971 7f96b0113a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:09:25.891971 7f96b0113a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:09:25.891972 7f96b0113a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:09:25.891972 7f96b0113a80 Options.max_total_wal_size: 0
+2021/03/14-08:09:25.891973 7f96b0113a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:09:25.891974 7f96b0113a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:09:25.891974 7f96b0113a80 Options.max_open_files: -1
+2021/03/14-08:09:25.891975 7f96b0113a80 Options.bytes_per_sync: 0
+2021/03/14-08:09:25.891975 7f96b0113a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:09:25.891976 7f96b0113a80 Options.compaction_readahead_size: 0
+2021/03/14-08:09:25.891977 7f96b0113a80 Compression algorithms supported:
+2021/03/14-08:09:25.891977 7f96b0113a80 Snappy supported: 1
+2021/03/14-08:09:25.891978 7f96b0113a80 Zlib supported: 1
+2021/03/14-08:09:25.891979 7f96b0113a80 Bzip supported: 1
+2021/03/14-08:09:25.891979 7f96b0113a80 LZ4 supported: 1
+2021/03/14-08:09:25.891980 7f96b0113a80 ZSTDNotFinal supported: 1
+2021/03/14-08:09:25.891984 7f96b0113a80 ZSTD supported: 1
+2021/03/14-08:09:25.891988 7f96b0113a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:09:25.891989 7f96b0113a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:09:25.892088 7f96b0113a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:09:25.892146 7f96b0113a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:09:25.892148 7f96b0113a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:09:25.892149 7f96b0113a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:09:25.892150 7f96b0113a80 Options.compaction_filter: None
+2021/03/14-08:09:25.892150 7f96b0113a80 Options.compaction_filter_factory: None
+2021/03/14-08:09:25.892151 7f96b0113a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:09:25.892152 7f96b0113a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:09:25.892170 7f96b0113a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22b8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x229df20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:09:25.892176 7f96b0113a80 Options.write_buffer_size: 134217728
+2021/03/14-08:09:25.892177 7f96b0113a80 Options.max_write_buffer_number: 6
+2021/03/14-08:09:25.892178 7f96b0113a80 Options.compression[0]: NoCompression
+2021/03/14-08:09:25.892178 7f96b0113a80 Options.compression[1]: NoCompression
+2021/03/14-08:09:25.892179 7f96b0113a80 Options.compression[2]: Snappy
+2021/03/14-08:09:25.892180 7f96b0113a80 Options.compression[3]: Snappy
+2021/03/14-08:09:25.892180 7f96b0113a80 Options.compression[4]: Snappy
+2021/03/14-08:09:25.892181 7f96b0113a80 Options.compression[5]: Snappy
+2021/03/14-08:09:25.892181 7f96b0113a80 Options.compression[6]: Snappy
+2021/03/14-08:09:25.892182 7f96b0113a80 Options.bottommost_compression: Disabled
+2021/03/14-08:09:25.892183 7f96b0113a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:09:25.892184 7f96b0113a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:09:25.892184 7f96b0113a80 Options.num_levels: 7
+2021/03/14-08:09:25.892185 7f96b0113a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:09:25.892185 7f96b0113a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:09:25.892186 7f96b0113a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:09:25.892187 7f96b0113a80 Options.compression_opts.level: -1
+2021/03/14-08:09:25.892187 7f96b0113a80 Options.compression_opts.strategy: 0
+2021/03/14-08:09:25.892188 7f96b0113a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:09:25.892188 7f96b0113a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:09:25.892189 7f96b0113a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:09:25.892190 7f96b0113a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:09:25.892190 7f96b0113a80 Options.target_file_size_base: 67108864
+2021/03/14-08:09:25.892191 7f96b0113a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:09:25.892191 7f96b0113a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:09:25.892192 7f96b0113a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:09:25.892193 7f96b0113a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:09:25.892194 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:09:25.892202 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:09:25.892203 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:09:25.892203 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:09:25.892204 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:09:25.892217 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:09:25.892218 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:09:25.892219 7f96b0113a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:09:25.892219 7f96b0113a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:09:25.892220 7f96b0113a80 Options.arena_block_size: 16777216
+2021/03/14-08:09:25.892221 7f96b0113a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:09:25.892221 7f96b0113a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:09:25.892222 7f96b0113a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:09:25.892222 7f96b0113a80 Options.disable_auto_compactions: 0
+2021/03/14-08:09:25.892224 7f96b0113a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:09:25.892225 7f96b0113a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:09:25.892226 7f96b0113a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:09:25.892226 7f96b0113a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:09:25.892227 7f96b0113a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:09:25.892228 7f96b0113a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:09:25.892228 7f96b0113a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:09:25.892229 7f96b0113a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:09:25.892230 7f96b0113a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:09:25.892231 7f96b0113a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:09:25.892231 7f96b0113a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:09:25.892232 7f96b0113a80 Options.table_properties_collectors:
+2021/03/14-08:09:25.892232 7f96b0113a80 Options.inplace_update_support: 0
+2021/03/14-08:09:25.892233 7f96b0113a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:09:25.892234 7f96b0113a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:09:25.892235 7f96b0113a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:09:25.892235 7f96b0113a80 Options.bloom_locality: 0
+2021/03/14-08:09:25.892236 7f96b0113a80 Options.max_successive_merges: 0
+2021/03/14-08:09:25.892236 7f96b0113a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:09:25.892237 7f96b0113a80 Options.paranoid_file_checks: 0
+2021/03/14-08:09:25.892246 7f96b0113a80 Options.force_consistency_checks: 0
+2021/03/14-08:09:25.892247 7f96b0113a80 Options.report_bg_io_stats: 0
+2021/03/14-08:09:25.892671 7f96b0113a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:09:25.892673 7f96b0113a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:09:25.892847 7f96b0113a80 EVENT_LOG_v1 {"time_micros": 1615705765892834, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:09:25.892852 7f96b0113a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:09:26.643116 7f96b0113a80 EVENT_LOG_v1 {"time_micros": 1615705766643112, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705960610694 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705960610694
new file mode 100644
index 0000000..68f2586
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705960610694
@@ -0,0 +1,186 @@
+2021/03/14-08:09:26.656543 7f96b0113a80 RocksDB version: 5.11.3
+2021/03/14-08:09:26.656598 7f96b0113a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:09:26.656600 7f96b0113a80 Compile date Mar 13 2021
+2021/03/14-08:09:26.656604 7f96b0113a80 DB SUMMARY
+2021/03/14-08:09:26.656779 7f96b0113a80 CURRENT file: CURRENT
+2021/03/14-08:09:26.656780 7f96b0113a80 IDENTITY file: IDENTITY
+2021/03/14-08:09:26.656797 7f96b0113a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:09:26.656798 7f96b0113a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:09:26.656799 7f96b0113a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:09:26.656805 7f96b0113a80 Options.error_if_exists: 0
+2021/03/14-08:09:26.656806 7f96b0113a80 Options.create_if_missing: 1
+2021/03/14-08:09:26.656806 7f96b0113a80 Options.paranoid_checks: 1
+2021/03/14-08:09:26.656807 7f96b0113a80 Options.env: 0x7f96b0acd080
+2021/03/14-08:09:26.656807 7f96b0113a80 Options.info_log: 0x22c0fa0
+2021/03/14-08:09:26.656808 7f96b0113a80 Options.max_file_opening_threads: 16
+2021/03/14-08:09:26.656809 7f96b0113a80 Options.statistics: (nil)
+2021/03/14-08:09:26.656809 7f96b0113a80 Options.use_fsync: 0
+2021/03/14-08:09:26.656810 7f96b0113a80 Options.max_log_file_size: 0
+2021/03/14-08:09:26.656810 7f96b0113a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:09:26.656811 7f96b0113a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:09:26.656812 7f96b0113a80 Options.keep_log_file_num: 1000
+2021/03/14-08:09:26.656812 7f96b0113a80 Options.recycle_log_file_num: 0
+2021/03/14-08:09:26.656813 7f96b0113a80 Options.allow_fallocate: 1
+2021/03/14-08:09:26.656814 7f96b0113a80 Options.allow_mmap_reads: 0
+2021/03/14-08:09:26.656814 7f96b0113a80 Options.allow_mmap_writes: 0
+2021/03/14-08:09:26.656815 7f96b0113a80 Options.use_direct_reads: 0
+2021/03/14-08:09:26.656815 7f96b0113a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:09:26.656816 7f96b0113a80 Options.create_missing_column_families: 0
+2021/03/14-08:09:26.656816 7f96b0113a80 Options.db_log_dir:
+2021/03/14-08:09:26.656817 7f96b0113a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:09:26.656817 7f96b0113a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:09:26.656818 7f96b0113a80 Options.max_subcompactions: 1
+2021/03/14-08:09:26.656819 7f96b0113a80 Options.max_background_flushes: -1
+2021/03/14-08:09:26.656819 7f96b0113a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:09:26.656820 7f96b0113a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:09:26.656820 7f96b0113a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:09:26.656821 7f96b0113a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:09:26.656822 7f96b0113a80 Options.advise_random_on_open: 1
+2021/03/14-08:09:26.656822 7f96b0113a80 Options.db_write_buffer_size: 0
+2021/03/14-08:09:26.656823 7f96b0113a80 Options.write_buffer_manager: 0x22a8e90
+2021/03/14-08:09:26.656823 7f96b0113a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:09:26.656824 7f96b0113a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:09:26.656824 7f96b0113a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:09:26.656825 7f96b0113a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:09:26.656825 7f96b0113a80 Options.rate_limiter: (nil)
+2021/03/14-08:09:26.656827 7f96b0113a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:09:26.656834 7f96b0113a80 Options.wal_recovery_mode: 2
+2021/03/14-08:09:26.656835 7f96b0113a80 Options.enable_thread_tracking: 0
+2021/03/14-08:09:26.656835 7f96b0113a80 Options.enable_pipelined_write: 0
+2021/03/14-08:09:26.656836 7f96b0113a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:09:26.656836 7f96b0113a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:09:26.656837 7f96b0113a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:09:26.656837 7f96b0113a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:09:26.656838 7f96b0113a80 Options.row_cache: None
+2021/03/14-08:09:26.656838 7f96b0113a80 Options.wal_filter: None
+2021/03/14-08:09:26.656839 7f96b0113a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:09:26.656840 7f96b0113a80 Options.allow_ingest_behind: 0
+2021/03/14-08:09:26.656840 7f96b0113a80 Options.preserve_deletes: 0
+2021/03/14-08:09:26.656841 7f96b0113a80 Options.two_write_queues: 0
+2021/03/14-08:09:26.656841 7f96b0113a80 Options.manual_wal_flush: 0
+2021/03/14-08:09:26.656842 7f96b0113a80 Options.max_background_jobs: 16
+2021/03/14-08:09:26.656843 7f96b0113a80 Options.max_background_compactions: -1
+2021/03/14-08:09:26.656844 7f96b0113a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:09:26.656844 7f96b0113a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:09:26.656845 7f96b0113a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:09:26.656845 7f96b0113a80 Options.max_total_wal_size: 0
+2021/03/14-08:09:26.656846 7f96b0113a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:09:26.656847 7f96b0113a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:09:26.656847 7f96b0113a80 Options.max_open_files: -1
+2021/03/14-08:09:26.656848 7f96b0113a80 Options.bytes_per_sync: 0
+2021/03/14-08:09:26.656848 7f96b0113a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:09:26.656849 7f96b0113a80 Options.compaction_readahead_size: 0
+2021/03/14-08:09:26.656849 7f96b0113a80 Compression algorithms supported:
+2021/03/14-08:09:26.656850 7f96b0113a80 Snappy supported: 1
+2021/03/14-08:09:26.656851 7f96b0113a80 Zlib supported: 1
+2021/03/14-08:09:26.656851 7f96b0113a80 Bzip supported: 1
+2021/03/14-08:09:26.656852 7f96b0113a80 LZ4 supported: 1
+2021/03/14-08:09:26.656852 7f96b0113a80 ZSTDNotFinal supported: 1
+2021/03/14-08:09:26.656856 7f96b0113a80 ZSTD supported: 1
+2021/03/14-08:09:26.656859 7f96b0113a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:09:26.656860 7f96b0113a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:09:26.656951 7f96b0113a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:09:26.657005 7f96b0113a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:09:26.657007 7f96b0113a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:09:26.657007 7f96b0113a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:09:26.657008 7f96b0113a80 Options.compaction_filter: None
+2021/03/14-08:09:26.657009 7f96b0113a80 Options.compaction_filter_factory: None
+2021/03/14-08:09:26.657009 7f96b0113a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:09:26.657010 7f96b0113a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:09:26.657027 7f96b0113a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x22b8820)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x229df20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:09:26.657032 7f96b0113a80 Options.write_buffer_size: 134217728
+2021/03/14-08:09:26.657033 7f96b0113a80 Options.max_write_buffer_number: 6
+2021/03/14-08:09:26.657033 7f96b0113a80 Options.compression[0]: NoCompression
+2021/03/14-08:09:26.657034 7f96b0113a80 Options.compression[1]: NoCompression
+2021/03/14-08:09:26.657035 7f96b0113a80 Options.compression[2]: Snappy
+2021/03/14-08:09:26.657035 7f96b0113a80 Options.compression[3]: Snappy
+2021/03/14-08:09:26.657036 7f96b0113a80 Options.compression[4]: Snappy
+2021/03/14-08:09:26.657036 7f96b0113a80 Options.compression[5]: Snappy
+2021/03/14-08:09:26.657037 7f96b0113a80 Options.compression[6]: Snappy
+2021/03/14-08:09:26.657038 7f96b0113a80 Options.bottommost_compression: Disabled
+2021/03/14-08:09:26.657038 7f96b0113a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:09:26.657039 7f96b0113a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:09:26.657040 7f96b0113a80 Options.num_levels: 7
+2021/03/14-08:09:26.657040 7f96b0113a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:09:26.657041 7f96b0113a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:09:26.657041 7f96b0113a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:09:26.657042 7f96b0113a80 Options.compression_opts.level: -1
+2021/03/14-08:09:26.657043 7f96b0113a80 Options.compression_opts.strategy: 0
+2021/03/14-08:09:26.657043 7f96b0113a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:09:26.657044 7f96b0113a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:09:26.657044 7f96b0113a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:09:26.657045 7f96b0113a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:09:26.657045 7f96b0113a80 Options.target_file_size_base: 67108864
+2021/03/14-08:09:26.657046 7f96b0113a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:09:26.657046 7f96b0113a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:09:26.657047 7f96b0113a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:09:26.657048 7f96b0113a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:09:26.657049 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:09:26.657057 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:09:26.657057 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:09:26.657058 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:09:26.657058 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:09:26.657059 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:09:26.657060 7f96b0113a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:09:26.657060 7f96b0113a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:09:26.657061 7f96b0113a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:09:26.657061 7f96b0113a80 Options.arena_block_size: 16777216
+2021/03/14-08:09:26.657062 7f96b0113a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:09:26.657062 7f96b0113a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:09:26.657063 7f96b0113a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:09:26.657064 7f96b0113a80 Options.disable_auto_compactions: 0
+2021/03/14-08:09:26.657065 7f96b0113a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:09:26.657066 7f96b0113a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:09:26.657067 7f96b0113a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:09:26.657067 7f96b0113a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:09:26.657068 7f96b0113a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:09:26.657069 7f96b0113a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:09:26.657069 7f96b0113a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:09:26.657070 7f96b0113a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:09:26.657071 7f96b0113a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:09:26.657071 7f96b0113a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:09:26.657072 7f96b0113a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:09:26.657072 7f96b0113a80 Options.table_properties_collectors:
+2021/03/14-08:09:26.657073 7f96b0113a80 Options.inplace_update_support: 0
+2021/03/14-08:09:26.657074 7f96b0113a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:09:26.657074 7f96b0113a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:09:26.657075 7f96b0113a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:09:26.657076 7f96b0113a80 Options.bloom_locality: 0
+2021/03/14-08:09:26.657076 7f96b0113a80 Options.max_successive_merges: 0
+2021/03/14-08:09:26.657077 7f96b0113a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:09:26.657077 7f96b0113a80 Options.paranoid_file_checks: 0
+2021/03/14-08:09:26.657078 7f96b0113a80 Options.force_consistency_checks: 0
+2021/03/14-08:09:26.657078 7f96b0113a80 Options.report_bg_io_stats: 0
+2021/03/14-08:09:26.657491 7f96b0113a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:09:26.657494 7f96b0113a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:09:26.657664 7f96b0113a80 EVENT_LOG_v1 {"time_micros": 1615705766657653, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:09:26.657669 7f96b0113a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:09:27.398915 7f96b0113a80 EVENT_LOG_v1 {"time_micros": 1615705767398911, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705961329733 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705961329733
new file mode 100644
index 0000000..7dca50b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705961329733
@@ -0,0 +1,186 @@
+2021/03/14-08:12:40.611213 7fd96f9a6a80 RocksDB version: 5.11.3
+2021/03/14-08:12:40.611293 7fd96f9a6a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:12:40.611295 7fd96f9a6a80 Compile date Mar 13 2021
+2021/03/14-08:12:40.611301 7fd96f9a6a80 DB SUMMARY
+2021/03/14-08:12:40.611490 7fd96f9a6a80 CURRENT file: CURRENT
+2021/03/14-08:12:40.611492 7fd96f9a6a80 IDENTITY file: IDENTITY
+2021/03/14-08:12:40.611510 7fd96f9a6a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:12:40.611511 7fd96f9a6a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:12:40.611512 7fd96f9a6a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:12:40.611518 7fd96f9a6a80 Options.error_if_exists: 0
+2021/03/14-08:12:40.611519 7fd96f9a6a80 Options.create_if_missing: 1
+2021/03/14-08:12:40.611520 7fd96f9a6a80 Options.paranoid_checks: 1
+2021/03/14-08:12:40.611520 7fd96f9a6a80 Options.env: 0x7fd970360080
+2021/03/14-08:12:40.611521 7fd96f9a6a80 Options.info_log: 0x1de4ca0
+2021/03/14-08:12:40.611521 7fd96f9a6a80 Options.max_file_opening_threads: 16
+2021/03/14-08:12:40.611522 7fd96f9a6a80 Options.statistics: (nil)
+2021/03/14-08:12:40.611523 7fd96f9a6a80 Options.use_fsync: 0
+2021/03/14-08:12:40.611523 7fd96f9a6a80 Options.max_log_file_size: 0
+2021/03/14-08:12:40.611524 7fd96f9a6a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:12:40.611525 7fd96f9a6a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:12:40.611525 7fd96f9a6a80 Options.keep_log_file_num: 1000
+2021/03/14-08:12:40.611526 7fd96f9a6a80 Options.recycle_log_file_num: 0
+2021/03/14-08:12:40.611526 7fd96f9a6a80 Options.allow_fallocate: 1
+2021/03/14-08:12:40.611527 7fd96f9a6a80 Options.allow_mmap_reads: 0
+2021/03/14-08:12:40.611528 7fd96f9a6a80 Options.allow_mmap_writes: 0
+2021/03/14-08:12:40.611528 7fd96f9a6a80 Options.use_direct_reads: 0
+2021/03/14-08:12:40.611529 7fd96f9a6a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:12:40.611529 7fd96f9a6a80 Options.create_missing_column_families: 0
+2021/03/14-08:12:40.611530 7fd96f9a6a80 Options.db_log_dir:
+2021/03/14-08:12:40.611530 7fd96f9a6a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:12:40.611531 7fd96f9a6a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:12:40.611532 7fd96f9a6a80 Options.max_subcompactions: 1
+2021/03/14-08:12:40.611532 7fd96f9a6a80 Options.max_background_flushes: -1
+2021/03/14-08:12:40.611533 7fd96f9a6a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:12:40.611533 7fd96f9a6a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:12:40.611534 7fd96f9a6a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:12:40.611535 7fd96f9a6a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:12:40.611535 7fd96f9a6a80 Options.advise_random_on_open: 1
+2021/03/14-08:12:40.611536 7fd96f9a6a80 Options.db_write_buffer_size: 0
+2021/03/14-08:12:40.611536 7fd96f9a6a80 Options.write_buffer_manager: 0x1dccb90
+2021/03/14-08:12:40.611537 7fd96f9a6a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:12:40.611537 7fd96f9a6a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:12:40.611538 7fd96f9a6a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:12:40.611538 7fd96f9a6a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:12:40.611539 7fd96f9a6a80 Options.rate_limiter: (nil)
+2021/03/14-08:12:40.611541 7fd96f9a6a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:12:40.611550 7fd96f9a6a80 Options.wal_recovery_mode: 2
+2021/03/14-08:12:40.611550 7fd96f9a6a80 Options.enable_thread_tracking: 0
+2021/03/14-08:12:40.611551 7fd96f9a6a80 Options.enable_pipelined_write: 0
+2021/03/14-08:12:40.611552 7fd96f9a6a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:12:40.611552 7fd96f9a6a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:12:40.611553 7fd96f9a6a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:12:40.611553 7fd96f9a6a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:12:40.611554 7fd96f9a6a80 Options.row_cache: None
+2021/03/14-08:12:40.611554 7fd96f9a6a80 Options.wal_filter: None
+2021/03/14-08:12:40.611555 7fd96f9a6a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:12:40.611556 7fd96f9a6a80 Options.allow_ingest_behind: 0
+2021/03/14-08:12:40.611556 7fd96f9a6a80 Options.preserve_deletes: 0
+2021/03/14-08:12:40.611557 7fd96f9a6a80 Options.two_write_queues: 0
+2021/03/14-08:12:40.611557 7fd96f9a6a80 Options.manual_wal_flush: 0
+2021/03/14-08:12:40.611559 7fd96f9a6a80 Options.max_background_jobs: 16
+2021/03/14-08:12:40.611559 7fd96f9a6a80 Options.max_background_compactions: -1
+2021/03/14-08:12:40.611560 7fd96f9a6a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:12:40.611561 7fd96f9a6a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:12:40.611561 7fd96f9a6a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:12:40.611562 7fd96f9a6a80 Options.max_total_wal_size: 0
+2021/03/14-08:12:40.611562 7fd96f9a6a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:12:40.611563 7fd96f9a6a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:12:40.611564 7fd96f9a6a80 Options.max_open_files: -1
+2021/03/14-08:12:40.611564 7fd96f9a6a80 Options.bytes_per_sync: 0
+2021/03/14-08:12:40.611565 7fd96f9a6a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:12:40.611565 7fd96f9a6a80 Options.compaction_readahead_size: 0
+2021/03/14-08:12:40.611566 7fd96f9a6a80 Compression algorithms supported:
+2021/03/14-08:12:40.611566 7fd96f9a6a80 Snappy supported: 1
+2021/03/14-08:12:40.611567 7fd96f9a6a80 Zlib supported: 1
+2021/03/14-08:12:40.611568 7fd96f9a6a80 Bzip supported: 1
+2021/03/14-08:12:40.611568 7fd96f9a6a80 LZ4 supported: 1
+2021/03/14-08:12:40.611569 7fd96f9a6a80 ZSTDNotFinal supported: 1
+2021/03/14-08:12:40.611574 7fd96f9a6a80 ZSTD supported: 1
+2021/03/14-08:12:40.611578 7fd96f9a6a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:12:40.611579 7fd96f9a6a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:12:40.611725 7fd96f9a6a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:12:40.611787 7fd96f9a6a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:12:40.611789 7fd96f9a6a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:12:40.611790 7fd96f9a6a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:12:40.611791 7fd96f9a6a80 Options.compaction_filter: None
+2021/03/14-08:12:40.611791 7fd96f9a6a80 Options.compaction_filter_factory: None
+2021/03/14-08:12:40.611792 7fd96f9a6a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:12:40.611793 7fd96f9a6a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:12:40.611813 7fd96f9a6a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1ddc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1dc1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:12:40.611819 7fd96f9a6a80 Options.write_buffer_size: 134217728
+2021/03/14-08:12:40.611819 7fd96f9a6a80 Options.max_write_buffer_number: 6
+2021/03/14-08:12:40.611820 7fd96f9a6a80 Options.compression[0]: NoCompression
+2021/03/14-08:12:40.611821 7fd96f9a6a80 Options.compression[1]: NoCompression
+2021/03/14-08:12:40.611822 7fd96f9a6a80 Options.compression[2]: Snappy
+2021/03/14-08:12:40.611822 7fd96f9a6a80 Options.compression[3]: Snappy
+2021/03/14-08:12:40.611823 7fd96f9a6a80 Options.compression[4]: Snappy
+2021/03/14-08:12:40.611823 7fd96f9a6a80 Options.compression[5]: Snappy
+2021/03/14-08:12:40.611824 7fd96f9a6a80 Options.compression[6]: Snappy
+2021/03/14-08:12:40.611825 7fd96f9a6a80 Options.bottommost_compression: Disabled
+2021/03/14-08:12:40.611826 7fd96f9a6a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:12:40.611826 7fd96f9a6a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:12:40.611827 7fd96f9a6a80 Options.num_levels: 7
+2021/03/14-08:12:40.611827 7fd96f9a6a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:12:40.611828 7fd96f9a6a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:12:40.611828 7fd96f9a6a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:12:40.611829 7fd96f9a6a80 Options.compression_opts.level: -1
+2021/03/14-08:12:40.611830 7fd96f9a6a80 Options.compression_opts.strategy: 0
+2021/03/14-08:12:40.611830 7fd96f9a6a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:12:40.611831 7fd96f9a6a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:12:40.611831 7fd96f9a6a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:12:40.611832 7fd96f9a6a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:12:40.611833 7fd96f9a6a80 Options.target_file_size_base: 67108864
+2021/03/14-08:12:40.611833 7fd96f9a6a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:12:40.611834 7fd96f9a6a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:12:40.611834 7fd96f9a6a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:12:40.611835 7fd96f9a6a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:12:40.611837 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:12:40.611845 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:12:40.611846 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:12:40.611847 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:12:40.611847 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:12:40.611848 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:12:40.611848 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:12:40.611849 7fd96f9a6a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:12:40.611849 7fd96f9a6a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:12:40.611850 7fd96f9a6a80 Options.arena_block_size: 16777216
+2021/03/14-08:12:40.611851 7fd96f9a6a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:12:40.611851 7fd96f9a6a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:12:40.611852 7fd96f9a6a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:12:40.611852 7fd96f9a6a80 Options.disable_auto_compactions: 0
+2021/03/14-08:12:40.611854 7fd96f9a6a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:12:40.611855 7fd96f9a6a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:12:40.611856 7fd96f9a6a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:12:40.611856 7fd96f9a6a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:12:40.611857 7fd96f9a6a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:12:40.611858 7fd96f9a6a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:12:40.611858 7fd96f9a6a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:12:40.611859 7fd96f9a6a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:12:40.611860 7fd96f9a6a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:12:40.611861 7fd96f9a6a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:12:40.611861 7fd96f9a6a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:12:40.611862 7fd96f9a6a80 Options.table_properties_collectors:
+2021/03/14-08:12:40.611862 7fd96f9a6a80 Options.inplace_update_support: 0
+2021/03/14-08:12:40.611863 7fd96f9a6a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:12:40.611864 7fd96f9a6a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:12:40.611864 7fd96f9a6a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:12:40.611865 7fd96f9a6a80 Options.bloom_locality: 0
+2021/03/14-08:12:40.611865 7fd96f9a6a80 Options.max_successive_merges: 0
+2021/03/14-08:12:40.611866 7fd96f9a6a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:12:40.611867 7fd96f9a6a80 Options.paranoid_file_checks: 0
+2021/03/14-08:12:40.611867 7fd96f9a6a80 Options.force_consistency_checks: 0
+2021/03/14-08:12:40.611868 7fd96f9a6a80 Options.report_bg_io_stats: 0
+2021/03/14-08:12:40.612321 7fd96f9a6a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:12:40.612324 7fd96f9a6a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:12:40.612515 7fd96f9a6a80 EVENT_LOG_v1 {"time_micros": 1615705960612501, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:12:40.612522 7fd96f9a6a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:12:41.317227 7fd96f9a6a80 EVENT_LOG_v1 {"time_micros": 1615705961317223, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705962048058 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705962048058
new file mode 100644
index 0000000..afc8172
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705962048058
@@ -0,0 +1,186 @@
+2021/03/14-08:12:41.330185 7fd96f9a6a80 RocksDB version: 5.11.3
+2021/03/14-08:12:41.330255 7fd96f9a6a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:12:41.330257 7fd96f9a6a80 Compile date Mar 13 2021
+2021/03/14-08:12:41.330262 7fd96f9a6a80 DB SUMMARY
+2021/03/14-08:12:41.330439 7fd96f9a6a80 CURRENT file: CURRENT
+2021/03/14-08:12:41.330440 7fd96f9a6a80 IDENTITY file: IDENTITY
+2021/03/14-08:12:41.330457 7fd96f9a6a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:12:41.330458 7fd96f9a6a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:12:41.330459 7fd96f9a6a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:12:41.330465 7fd96f9a6a80 Options.error_if_exists: 0
+2021/03/14-08:12:41.330466 7fd96f9a6a80 Options.create_if_missing: 1
+2021/03/14-08:12:41.330467 7fd96f9a6a80 Options.paranoid_checks: 1
+2021/03/14-08:12:41.330467 7fd96f9a6a80 Options.env: 0x7fd970360080
+2021/03/14-08:12:41.330468 7fd96f9a6a80 Options.info_log: 0x1de4ca0
+2021/03/14-08:12:41.330469 7fd96f9a6a80 Options.max_file_opening_threads: 16
+2021/03/14-08:12:41.330469 7fd96f9a6a80 Options.statistics: (nil)
+2021/03/14-08:12:41.330470 7fd96f9a6a80 Options.use_fsync: 0
+2021/03/14-08:12:41.330470 7fd96f9a6a80 Options.max_log_file_size: 0
+2021/03/14-08:12:41.330471 7fd96f9a6a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:12:41.330472 7fd96f9a6a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:12:41.330472 7fd96f9a6a80 Options.keep_log_file_num: 1000
+2021/03/14-08:12:41.330473 7fd96f9a6a80 Options.recycle_log_file_num: 0
+2021/03/14-08:12:41.330473 7fd96f9a6a80 Options.allow_fallocate: 1
+2021/03/14-08:12:41.330474 7fd96f9a6a80 Options.allow_mmap_reads: 0
+2021/03/14-08:12:41.330475 7fd96f9a6a80 Options.allow_mmap_writes: 0
+2021/03/14-08:12:41.330475 7fd96f9a6a80 Options.use_direct_reads: 0
+2021/03/14-08:12:41.330476 7fd96f9a6a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:12:41.330476 7fd96f9a6a80 Options.create_missing_column_families: 0
+2021/03/14-08:12:41.330477 7fd96f9a6a80 Options.db_log_dir:
+2021/03/14-08:12:41.330477 7fd96f9a6a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:12:41.330478 7fd96f9a6a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:12:41.330478 7fd96f9a6a80 Options.max_subcompactions: 1
+2021/03/14-08:12:41.330479 7fd96f9a6a80 Options.max_background_flushes: -1
+2021/03/14-08:12:41.330480 7fd96f9a6a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:12:41.330480 7fd96f9a6a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:12:41.330481 7fd96f9a6a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:12:41.330481 7fd96f9a6a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:12:41.330482 7fd96f9a6a80 Options.advise_random_on_open: 1
+2021/03/14-08:12:41.330482 7fd96f9a6a80 Options.db_write_buffer_size: 0
+2021/03/14-08:12:41.330483 7fd96f9a6a80 Options.write_buffer_manager: 0x1dccb90
+2021/03/14-08:12:41.330483 7fd96f9a6a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:12:41.330484 7fd96f9a6a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:12:41.330485 7fd96f9a6a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:12:41.330485 7fd96f9a6a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:12:41.330486 7fd96f9a6a80 Options.rate_limiter: (nil)
+2021/03/14-08:12:41.330487 7fd96f9a6a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:12:41.330495 7fd96f9a6a80 Options.wal_recovery_mode: 2
+2021/03/14-08:12:41.330496 7fd96f9a6a80 Options.enable_thread_tracking: 0
+2021/03/14-08:12:41.330497 7fd96f9a6a80 Options.enable_pipelined_write: 0
+2021/03/14-08:12:41.330497 7fd96f9a6a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:12:41.330498 7fd96f9a6a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:12:41.330498 7fd96f9a6a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:12:41.330499 7fd96f9a6a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:12:41.330500 7fd96f9a6a80 Options.row_cache: None
+2021/03/14-08:12:41.330500 7fd96f9a6a80 Options.wal_filter: None
+2021/03/14-08:12:41.330501 7fd96f9a6a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:12:41.330501 7fd96f9a6a80 Options.allow_ingest_behind: 0
+2021/03/14-08:12:41.330502 7fd96f9a6a80 Options.preserve_deletes: 0
+2021/03/14-08:12:41.330502 7fd96f9a6a80 Options.two_write_queues: 0
+2021/03/14-08:12:41.330503 7fd96f9a6a80 Options.manual_wal_flush: 0
+2021/03/14-08:12:41.330504 7fd96f9a6a80 Options.max_background_jobs: 16
+2021/03/14-08:12:41.330505 7fd96f9a6a80 Options.max_background_compactions: -1
+2021/03/14-08:12:41.330505 7fd96f9a6a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:12:41.330506 7fd96f9a6a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:12:41.330506 7fd96f9a6a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:12:41.330507 7fd96f9a6a80 Options.max_total_wal_size: 0
+2021/03/14-08:12:41.330507 7fd96f9a6a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:12:41.330508 7fd96f9a6a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:12:41.330509 7fd96f9a6a80 Options.max_open_files: -1
+2021/03/14-08:12:41.330509 7fd96f9a6a80 Options.bytes_per_sync: 0
+2021/03/14-08:12:41.330510 7fd96f9a6a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:12:41.330510 7fd96f9a6a80 Options.compaction_readahead_size: 0
+2021/03/14-08:12:41.330511 7fd96f9a6a80 Compression algorithms supported:
+2021/03/14-08:12:41.330511 7fd96f9a6a80 Snappy supported: 1
+2021/03/14-08:12:41.330512 7fd96f9a6a80 Zlib supported: 1
+2021/03/14-08:12:41.330513 7fd96f9a6a80 Bzip supported: 1
+2021/03/14-08:12:41.330513 7fd96f9a6a80 LZ4 supported: 1
+2021/03/14-08:12:41.330514 7fd96f9a6a80 ZSTDNotFinal supported: 1
+2021/03/14-08:12:41.330518 7fd96f9a6a80 ZSTD supported: 1
+2021/03/14-08:12:41.330521 7fd96f9a6a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:12:41.330522 7fd96f9a6a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:12:41.330626 7fd96f9a6a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:12:41.330679 7fd96f9a6a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:12:41.330681 7fd96f9a6a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:12:41.330681 7fd96f9a6a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:12:41.330682 7fd96f9a6a80 Options.compaction_filter: None
+2021/03/14-08:12:41.330683 7fd96f9a6a80 Options.compaction_filter_factory: None
+2021/03/14-08:12:41.330683 7fd96f9a6a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:12:41.330684 7fd96f9a6a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:12:41.330701 7fd96f9a6a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1ddc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1dc1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:12:41.330707 7fd96f9a6a80 Options.write_buffer_size: 134217728
+2021/03/14-08:12:41.330708 7fd96f9a6a80 Options.max_write_buffer_number: 6
+2021/03/14-08:12:41.330709 7fd96f9a6a80 Options.compression[0]: NoCompression
+2021/03/14-08:12:41.330709 7fd96f9a6a80 Options.compression[1]: NoCompression
+2021/03/14-08:12:41.330710 7fd96f9a6a80 Options.compression[2]: Snappy
+2021/03/14-08:12:41.330710 7fd96f9a6a80 Options.compression[3]: Snappy
+2021/03/14-08:12:41.330711 7fd96f9a6a80 Options.compression[4]: Snappy
+2021/03/14-08:12:41.330712 7fd96f9a6a80 Options.compression[5]: Snappy
+2021/03/14-08:12:41.330712 7fd96f9a6a80 Options.compression[6]: Snappy
+2021/03/14-08:12:41.330713 7fd96f9a6a80 Options.bottommost_compression: Disabled
+2021/03/14-08:12:41.330714 7fd96f9a6a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:12:41.330714 7fd96f9a6a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:12:41.330715 7fd96f9a6a80 Options.num_levels: 7
+2021/03/14-08:12:41.330715 7fd96f9a6a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:12:41.330716 7fd96f9a6a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:12:41.330716 7fd96f9a6a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:12:41.330717 7fd96f9a6a80 Options.compression_opts.level: -1
+2021/03/14-08:12:41.330718 7fd96f9a6a80 Options.compression_opts.strategy: 0
+2021/03/14-08:12:41.330718 7fd96f9a6a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:12:41.330719 7fd96f9a6a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:12:41.330719 7fd96f9a6a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:12:41.330720 7fd96f9a6a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:12:41.330720 7fd96f9a6a80 Options.target_file_size_base: 67108864
+2021/03/14-08:12:41.330721 7fd96f9a6a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:12:41.330722 7fd96f9a6a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:12:41.330722 7fd96f9a6a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:12:41.330723 7fd96f9a6a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:12:41.330725 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:12:41.330733 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:12:41.330733 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:12:41.330734 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:12:41.330734 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:12:41.330735 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:12:41.330736 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:12:41.330736 7fd96f9a6a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:12:41.330737 7fd96f9a6a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:12:41.330737 7fd96f9a6a80 Options.arena_block_size: 16777216
+2021/03/14-08:12:41.330738 7fd96f9a6a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:12:41.330738 7fd96f9a6a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:12:41.330739 7fd96f9a6a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:12:41.330740 7fd96f9a6a80 Options.disable_auto_compactions: 0
+2021/03/14-08:12:41.330741 7fd96f9a6a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:12:41.330742 7fd96f9a6a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:12:41.330743 7fd96f9a6a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:12:41.330743 7fd96f9a6a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:12:41.330744 7fd96f9a6a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:12:41.330745 7fd96f9a6a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:12:41.330745 7fd96f9a6a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:12:41.330746 7fd96f9a6a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:12:41.330747 7fd96f9a6a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:12:41.330747 7fd96f9a6a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:12:41.330748 7fd96f9a6a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:12:41.330748 7fd96f9a6a80 Options.table_properties_collectors:
+2021/03/14-08:12:41.330749 7fd96f9a6a80 Options.inplace_update_support: 0
+2021/03/14-08:12:41.330750 7fd96f9a6a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:12:41.330750 7fd96f9a6a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:12:41.330751 7fd96f9a6a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:12:41.330752 7fd96f9a6a80 Options.bloom_locality: 0
+2021/03/14-08:12:41.330752 7fd96f9a6a80 Options.max_successive_merges: 0
+2021/03/14-08:12:41.330753 7fd96f9a6a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:12:41.330753 7fd96f9a6a80 Options.paranoid_file_checks: 0
+2021/03/14-08:12:41.330754 7fd96f9a6a80 Options.force_consistency_checks: 0
+2021/03/14-08:12:41.330755 7fd96f9a6a80 Options.report_bg_io_stats: 0
+2021/03/14-08:12:41.331128 7fd96f9a6a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:12:41.331130 7fd96f9a6a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:12:41.331306 7fd96f9a6a80 EVENT_LOG_v1 {"time_micros": 1615705961331296, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:12:41.331311 7fd96f9a6a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:12:42.035458 7fd96f9a6a80 EVENT_LOG_v1 {"time_micros": 1615705962035454, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615705962753027 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705962753027
new file mode 100644
index 0000000..660bc8b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615705962753027
@@ -0,0 +1,186 @@
+2021/03/14-08:12:42.048504 7fd96f9a6a80 RocksDB version: 5.11.3
+2021/03/14-08:12:42.048556 7fd96f9a6a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:12:42.048558 7fd96f9a6a80 Compile date Mar 13 2021
+2021/03/14-08:12:42.048562 7fd96f9a6a80 DB SUMMARY
+2021/03/14-08:12:42.048738 7fd96f9a6a80 CURRENT file: CURRENT
+2021/03/14-08:12:42.048739 7fd96f9a6a80 IDENTITY file: IDENTITY
+2021/03/14-08:12:42.048756 7fd96f9a6a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:12:42.048757 7fd96f9a6a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:12:42.048758 7fd96f9a6a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:12:42.048764 7fd96f9a6a80 Options.error_if_exists: 0
+2021/03/14-08:12:42.048765 7fd96f9a6a80 Options.create_if_missing: 1
+2021/03/14-08:12:42.048766 7fd96f9a6a80 Options.paranoid_checks: 1
+2021/03/14-08:12:42.048766 7fd96f9a6a80 Options.env: 0x7fd970360080
+2021/03/14-08:12:42.048767 7fd96f9a6a80 Options.info_log: 0x1de4ca0
+2021/03/14-08:12:42.048767 7fd96f9a6a80 Options.max_file_opening_threads: 16
+2021/03/14-08:12:42.048768 7fd96f9a6a80 Options.statistics: (nil)
+2021/03/14-08:12:42.048769 7fd96f9a6a80 Options.use_fsync: 0
+2021/03/14-08:12:42.048769 7fd96f9a6a80 Options.max_log_file_size: 0
+2021/03/14-08:12:42.048770 7fd96f9a6a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:12:42.048771 7fd96f9a6a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:12:42.048771 7fd96f9a6a80 Options.keep_log_file_num: 1000
+2021/03/14-08:12:42.048772 7fd96f9a6a80 Options.recycle_log_file_num: 0
+2021/03/14-08:12:42.048772 7fd96f9a6a80 Options.allow_fallocate: 1
+2021/03/14-08:12:42.048773 7fd96f9a6a80 Options.allow_mmap_reads: 0
+2021/03/14-08:12:42.048773 7fd96f9a6a80 Options.allow_mmap_writes: 0
+2021/03/14-08:12:42.048774 7fd96f9a6a80 Options.use_direct_reads: 0
+2021/03/14-08:12:42.048775 7fd96f9a6a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:12:42.048775 7fd96f9a6a80 Options.create_missing_column_families: 0
+2021/03/14-08:12:42.048776 7fd96f9a6a80 Options.db_log_dir:
+2021/03/14-08:12:42.048776 7fd96f9a6a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:12:42.048777 7fd96f9a6a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:12:42.048777 7fd96f9a6a80 Options.max_subcompactions: 1
+2021/03/14-08:12:42.048778 7fd96f9a6a80 Options.max_background_flushes: -1
+2021/03/14-08:12:42.048779 7fd96f9a6a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:12:42.048779 7fd96f9a6a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:12:42.048780 7fd96f9a6a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:12:42.048780 7fd96f9a6a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:12:42.048781 7fd96f9a6a80 Options.advise_random_on_open: 1
+2021/03/14-08:12:42.048782 7fd96f9a6a80 Options.db_write_buffer_size: 0
+2021/03/14-08:12:42.048782 7fd96f9a6a80 Options.write_buffer_manager: 0x1dccb90
+2021/03/14-08:12:42.048783 7fd96f9a6a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:12:42.048783 7fd96f9a6a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:12:42.048784 7fd96f9a6a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:12:42.048784 7fd96f9a6a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:12:42.048785 7fd96f9a6a80 Options.rate_limiter: (nil)
+2021/03/14-08:12:42.048786 7fd96f9a6a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:12:42.048794 7fd96f9a6a80 Options.wal_recovery_mode: 2
+2021/03/14-08:12:42.048795 7fd96f9a6a80 Options.enable_thread_tracking: 0
+2021/03/14-08:12:42.048795 7fd96f9a6a80 Options.enable_pipelined_write: 0
+2021/03/14-08:12:42.048796 7fd96f9a6a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:12:42.048796 7fd96f9a6a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:12:42.048797 7fd96f9a6a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:12:42.048798 7fd96f9a6a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:12:42.048798 7fd96f9a6a80 Options.row_cache: None
+2021/03/14-08:12:42.048799 7fd96f9a6a80 Options.wal_filter: None
+2021/03/14-08:12:42.048799 7fd96f9a6a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:12:42.048800 7fd96f9a6a80 Options.allow_ingest_behind: 0
+2021/03/14-08:12:42.048800 7fd96f9a6a80 Options.preserve_deletes: 0
+2021/03/14-08:12:42.048801 7fd96f9a6a80 Options.two_write_queues: 0
+2021/03/14-08:12:42.048802 7fd96f9a6a80 Options.manual_wal_flush: 0
+2021/03/14-08:12:42.048803 7fd96f9a6a80 Options.max_background_jobs: 16
+2021/03/14-08:12:42.048803 7fd96f9a6a80 Options.max_background_compactions: -1
+2021/03/14-08:12:42.048804 7fd96f9a6a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:12:42.048804 7fd96f9a6a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:12:42.048805 7fd96f9a6a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:12:42.048806 7fd96f9a6a80 Options.max_total_wal_size: 0
+2021/03/14-08:12:42.048806 7fd96f9a6a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:12:42.048807 7fd96f9a6a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:12:42.048807 7fd96f9a6a80 Options.max_open_files: -1
+2021/03/14-08:12:42.048808 7fd96f9a6a80 Options.bytes_per_sync: 0
+2021/03/14-08:12:42.048809 7fd96f9a6a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:12:42.048809 7fd96f9a6a80 Options.compaction_readahead_size: 0
+2021/03/14-08:12:42.048810 7fd96f9a6a80 Compression algorithms supported:
+2021/03/14-08:12:42.048810 7fd96f9a6a80 Snappy supported: 1
+2021/03/14-08:12:42.048811 7fd96f9a6a80 Zlib supported: 1
+2021/03/14-08:12:42.048811 7fd96f9a6a80 Bzip supported: 1
+2021/03/14-08:12:42.048812 7fd96f9a6a80 LZ4 supported: 1
+2021/03/14-08:12:42.048813 7fd96f9a6a80 ZSTDNotFinal supported: 1
+2021/03/14-08:12:42.048816 7fd96f9a6a80 ZSTD supported: 1
+2021/03/14-08:12:42.048819 7fd96f9a6a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:12:42.048821 7fd96f9a6a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:12:42.048911 7fd96f9a6a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:12:42.048961 7fd96f9a6a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:12:42.048963 7fd96f9a6a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:12:42.048964 7fd96f9a6a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:12:42.048964 7fd96f9a6a80 Options.compaction_filter: None
+2021/03/14-08:12:42.048965 7fd96f9a6a80 Options.compaction_filter_factory: None
+2021/03/14-08:12:42.048966 7fd96f9a6a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:12:42.048966 7fd96f9a6a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:12:42.048983 7fd96f9a6a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1ddc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1dc1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:12:42.048989 7fd96f9a6a80 Options.write_buffer_size: 134217728
+2021/03/14-08:12:42.048989 7fd96f9a6a80 Options.max_write_buffer_number: 6
+2021/03/14-08:12:42.048990 7fd96f9a6a80 Options.compression[0]: NoCompression
+2021/03/14-08:12:42.048991 7fd96f9a6a80 Options.compression[1]: NoCompression
+2021/03/14-08:12:42.048992 7fd96f9a6a80 Options.compression[2]: Snappy
+2021/03/14-08:12:42.048992 7fd96f9a6a80 Options.compression[3]: Snappy
+2021/03/14-08:12:42.048993 7fd96f9a6a80 Options.compression[4]: Snappy
+2021/03/14-08:12:42.048993 7fd96f9a6a80 Options.compression[5]: Snappy
+2021/03/14-08:12:42.048994 7fd96f9a6a80 Options.compression[6]: Snappy
+2021/03/14-08:12:42.048995 7fd96f9a6a80 Options.bottommost_compression: Disabled
+2021/03/14-08:12:42.048995 7fd96f9a6a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:12:42.048996 7fd96f9a6a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:12:42.048996 7fd96f9a6a80 Options.num_levels: 7
+2021/03/14-08:12:42.048997 7fd96f9a6a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:12:42.048998 7fd96f9a6a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:12:42.048998 7fd96f9a6a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:12:42.048999 7fd96f9a6a80 Options.compression_opts.level: -1
+2021/03/14-08:12:42.048999 7fd96f9a6a80 Options.compression_opts.strategy: 0
+2021/03/14-08:12:42.049000 7fd96f9a6a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:12:42.049000 7fd96f9a6a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:12:42.049001 7fd96f9a6a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:12:42.049002 7fd96f9a6a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:12:42.049002 7fd96f9a6a80 Options.target_file_size_base: 67108864
+2021/03/14-08:12:42.049003 7fd96f9a6a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:12:42.049003 7fd96f9a6a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:12:42.049004 7fd96f9a6a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:12:42.049005 7fd96f9a6a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:12:42.049006 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:12:42.049014 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:12:42.049015 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:12:42.049015 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:12:42.049016 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:12:42.049016 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:12:42.049017 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:12:42.049017 7fd96f9a6a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:12:42.049018 7fd96f9a6a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:12:42.049019 7fd96f9a6a80 Options.arena_block_size: 16777216
+2021/03/14-08:12:42.049019 7fd96f9a6a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:12:42.049020 7fd96f9a6a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:12:42.049020 7fd96f9a6a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:12:42.049021 7fd96f9a6a80 Options.disable_auto_compactions: 0
+2021/03/14-08:12:42.049023 7fd96f9a6a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:12:42.049023 7fd96f9a6a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:12:42.049024 7fd96f9a6a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:12:42.049024 7fd96f9a6a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:12:42.049025 7fd96f9a6a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:12:42.049026 7fd96f9a6a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:12:42.049026 7fd96f9a6a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:12:42.049027 7fd96f9a6a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:12:42.049028 7fd96f9a6a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:12:42.049028 7fd96f9a6a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:12:42.049029 7fd96f9a6a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:12:42.049029 7fd96f9a6a80 Options.table_properties_collectors:
+2021/03/14-08:12:42.049030 7fd96f9a6a80 Options.inplace_update_support: 0
+2021/03/14-08:12:42.049031 7fd96f9a6a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:12:42.049031 7fd96f9a6a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:12:42.049032 7fd96f9a6a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:12:42.049033 7fd96f9a6a80 Options.bloom_locality: 0
+2021/03/14-08:12:42.049033 7fd96f9a6a80 Options.max_successive_merges: 0
+2021/03/14-08:12:42.049034 7fd96f9a6a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:12:42.049034 7fd96f9a6a80 Options.paranoid_file_checks: 0
+2021/03/14-08:12:42.049035 7fd96f9a6a80 Options.force_consistency_checks: 0
+2021/03/14-08:12:42.049035 7fd96f9a6a80 Options.report_bg_io_stats: 0
+2021/03/14-08:12:42.049428 7fd96f9a6a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:12:42.049431 7fd96f9a6a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:12:42.049602 7fd96f9a6a80 EVENT_LOG_v1 {"time_micros": 1615705962049591, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:12:42.049607 7fd96f9a6a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:12:42.740377 7fd96f9a6a80 EVENT_LOG_v1 {"time_micros": 1615705962740374, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708418389546 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708418389546
new file mode 100644
index 0000000..051191c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708418389546
@@ -0,0 +1,186 @@
+2021/03/14-08:12:42.753470 7fd96f9a6a80 RocksDB version: 5.11.3
+2021/03/14-08:12:42.753523 7fd96f9a6a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:12:42.753524 7fd96f9a6a80 Compile date Mar 13 2021
+2021/03/14-08:12:42.753529 7fd96f9a6a80 DB SUMMARY
+2021/03/14-08:12:42.753706 7fd96f9a6a80 CURRENT file: CURRENT
+2021/03/14-08:12:42.753707 7fd96f9a6a80 IDENTITY file: IDENTITY
+2021/03/14-08:12:42.753724 7fd96f9a6a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:12:42.753725 7fd96f9a6a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:12:42.753726 7fd96f9a6a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:12:42.753732 7fd96f9a6a80 Options.error_if_exists: 0
+2021/03/14-08:12:42.753733 7fd96f9a6a80 Options.create_if_missing: 1
+2021/03/14-08:12:42.753734 7fd96f9a6a80 Options.paranoid_checks: 1
+2021/03/14-08:12:42.753734 7fd96f9a6a80 Options.env: 0x7fd970360080
+2021/03/14-08:12:42.753735 7fd96f9a6a80 Options.info_log: 0x1de4ca0
+2021/03/14-08:12:42.753735 7fd96f9a6a80 Options.max_file_opening_threads: 16
+2021/03/14-08:12:42.753736 7fd96f9a6a80 Options.statistics: (nil)
+2021/03/14-08:12:42.753737 7fd96f9a6a80 Options.use_fsync: 0
+2021/03/14-08:12:42.753737 7fd96f9a6a80 Options.max_log_file_size: 0
+2021/03/14-08:12:42.753738 7fd96f9a6a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:12:42.753738 7fd96f9a6a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:12:42.753739 7fd96f9a6a80 Options.keep_log_file_num: 1000
+2021/03/14-08:12:42.753739 7fd96f9a6a80 Options.recycle_log_file_num: 0
+2021/03/14-08:12:42.753740 7fd96f9a6a80 Options.allow_fallocate: 1
+2021/03/14-08:12:42.753741 7fd96f9a6a80 Options.allow_mmap_reads: 0
+2021/03/14-08:12:42.753741 7fd96f9a6a80 Options.allow_mmap_writes: 0
+2021/03/14-08:12:42.753742 7fd96f9a6a80 Options.use_direct_reads: 0
+2021/03/14-08:12:42.753742 7fd96f9a6a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:12:42.753743 7fd96f9a6a80 Options.create_missing_column_families: 0
+2021/03/14-08:12:42.753743 7fd96f9a6a80 Options.db_log_dir:
+2021/03/14-08:12:42.753744 7fd96f9a6a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:12:42.753744 7fd96f9a6a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:12:42.753745 7fd96f9a6a80 Options.max_subcompactions: 1
+2021/03/14-08:12:42.753746 7fd96f9a6a80 Options.max_background_flushes: -1
+2021/03/14-08:12:42.753746 7fd96f9a6a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:12:42.753747 7fd96f9a6a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:12:42.753747 7fd96f9a6a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:12:42.753748 7fd96f9a6a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:12:42.753748 7fd96f9a6a80 Options.advise_random_on_open: 1
+2021/03/14-08:12:42.753749 7fd96f9a6a80 Options.db_write_buffer_size: 0
+2021/03/14-08:12:42.753750 7fd96f9a6a80 Options.write_buffer_manager: 0x1dccb90
+2021/03/14-08:12:42.753750 7fd96f9a6a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:12:42.753751 7fd96f9a6a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:12:42.753751 7fd96f9a6a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:12:42.753752 7fd96f9a6a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:12:42.753752 7fd96f9a6a80 Options.rate_limiter: (nil)
+2021/03/14-08:12:42.753754 7fd96f9a6a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:12:42.753761 7fd96f9a6a80 Options.wal_recovery_mode: 2
+2021/03/14-08:12:42.753762 7fd96f9a6a80 Options.enable_thread_tracking: 0
+2021/03/14-08:12:42.753763 7fd96f9a6a80 Options.enable_pipelined_write: 0
+2021/03/14-08:12:42.753763 7fd96f9a6a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:12:42.753764 7fd96f9a6a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:12:42.753764 7fd96f9a6a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:12:42.753765 7fd96f9a6a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:12:42.753766 7fd96f9a6a80 Options.row_cache: None
+2021/03/14-08:12:42.753766 7fd96f9a6a80 Options.wal_filter: None
+2021/03/14-08:12:42.753767 7fd96f9a6a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:12:42.753767 7fd96f9a6a80 Options.allow_ingest_behind: 0
+2021/03/14-08:12:42.753768 7fd96f9a6a80 Options.preserve_deletes: 0
+2021/03/14-08:12:42.753768 7fd96f9a6a80 Options.two_write_queues: 0
+2021/03/14-08:12:42.753769 7fd96f9a6a80 Options.manual_wal_flush: 0
+2021/03/14-08:12:42.753770 7fd96f9a6a80 Options.max_background_jobs: 16
+2021/03/14-08:12:42.753771 7fd96f9a6a80 Options.max_background_compactions: -1
+2021/03/14-08:12:42.753771 7fd96f9a6a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:12:42.753772 7fd96f9a6a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:12:42.753772 7fd96f9a6a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:12:42.753773 7fd96f9a6a80 Options.max_total_wal_size: 0
+2021/03/14-08:12:42.753774 7fd96f9a6a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:12:42.753774 7fd96f9a6a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:12:42.753775 7fd96f9a6a80 Options.max_open_files: -1
+2021/03/14-08:12:42.753775 7fd96f9a6a80 Options.bytes_per_sync: 0
+2021/03/14-08:12:42.753776 7fd96f9a6a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:12:42.753776 7fd96f9a6a80 Options.compaction_readahead_size: 0
+2021/03/14-08:12:42.753777 7fd96f9a6a80 Compression algorithms supported:
+2021/03/14-08:12:42.753778 7fd96f9a6a80 Snappy supported: 1
+2021/03/14-08:12:42.753778 7fd96f9a6a80 Zlib supported: 1
+2021/03/14-08:12:42.753779 7fd96f9a6a80 Bzip supported: 1
+2021/03/14-08:12:42.753780 7fd96f9a6a80 LZ4 supported: 1
+2021/03/14-08:12:42.753780 7fd96f9a6a80 ZSTDNotFinal supported: 1
+2021/03/14-08:12:42.753784 7fd96f9a6a80 ZSTD supported: 1
+2021/03/14-08:12:42.753787 7fd96f9a6a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:12:42.753788 7fd96f9a6a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:12:42.753879 7fd96f9a6a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:12:42.753929 7fd96f9a6a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:12:42.753931 7fd96f9a6a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:12:42.753932 7fd96f9a6a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:12:42.753933 7fd96f9a6a80 Options.compaction_filter: None
+2021/03/14-08:12:42.753933 7fd96f9a6a80 Options.compaction_filter_factory: None
+2021/03/14-08:12:42.753934 7fd96f9a6a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:12:42.753935 7fd96f9a6a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:12:42.753951 7fd96f9a6a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1ddc520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1dc1c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:12:42.753957 7fd96f9a6a80 Options.write_buffer_size: 134217728
+2021/03/14-08:12:42.753958 7fd96f9a6a80 Options.max_write_buffer_number: 6
+2021/03/14-08:12:42.753958 7fd96f9a6a80 Options.compression[0]: NoCompression
+2021/03/14-08:12:42.753959 7fd96f9a6a80 Options.compression[1]: NoCompression
+2021/03/14-08:12:42.753960 7fd96f9a6a80 Options.compression[2]: Snappy
+2021/03/14-08:12:42.753960 7fd96f9a6a80 Options.compression[3]: Snappy
+2021/03/14-08:12:42.753961 7fd96f9a6a80 Options.compression[4]: Snappy
+2021/03/14-08:12:42.753961 7fd96f9a6a80 Options.compression[5]: Snappy
+2021/03/14-08:12:42.753962 7fd96f9a6a80 Options.compression[6]: Snappy
+2021/03/14-08:12:42.753963 7fd96f9a6a80 Options.bottommost_compression: Disabled
+2021/03/14-08:12:42.753963 7fd96f9a6a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:12:42.753964 7fd96f9a6a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:12:42.753964 7fd96f9a6a80 Options.num_levels: 7
+2021/03/14-08:12:42.753965 7fd96f9a6a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:12:42.753966 7fd96f9a6a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:12:42.753966 7fd96f9a6a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:12:42.753967 7fd96f9a6a80 Options.compression_opts.level: -1
+2021/03/14-08:12:42.753967 7fd96f9a6a80 Options.compression_opts.strategy: 0
+2021/03/14-08:12:42.753968 7fd96f9a6a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:12:42.753968 7fd96f9a6a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:12:42.753969 7fd96f9a6a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:12:42.753970 7fd96f9a6a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:12:42.753970 7fd96f9a6a80 Options.target_file_size_base: 67108864
+2021/03/14-08:12:42.753971 7fd96f9a6a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:12:42.753971 7fd96f9a6a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:12:42.753972 7fd96f9a6a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:12:42.753972 7fd96f9a6a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:12:42.753974 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:12:42.753981 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:12:42.753982 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:12:42.753983 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:12:42.753983 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:12:42.753984 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:12:42.753984 7fd96f9a6a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:12:42.753985 7fd96f9a6a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:12:42.753986 7fd96f9a6a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:12:42.753986 7fd96f9a6a80 Options.arena_block_size: 16777216
+2021/03/14-08:12:42.753987 7fd96f9a6a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:12:42.753987 7fd96f9a6a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:12:42.753988 7fd96f9a6a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:12:42.753989 7fd96f9a6a80 Options.disable_auto_compactions: 0
+2021/03/14-08:12:42.753990 7fd96f9a6a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:12:42.753991 7fd96f9a6a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:12:42.753992 7fd96f9a6a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:12:42.753992 7fd96f9a6a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:12:42.753993 7fd96f9a6a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:12:42.753993 7fd96f9a6a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:12:42.753994 7fd96f9a6a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:12:42.753995 7fd96f9a6a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:12:42.753995 7fd96f9a6a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:12:42.753996 7fd96f9a6a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:12:42.753997 7fd96f9a6a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:12:42.753997 7fd96f9a6a80 Options.table_properties_collectors:
+2021/03/14-08:12:42.753998 7fd96f9a6a80 Options.inplace_update_support: 0
+2021/03/14-08:12:42.753999 7fd96f9a6a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:12:42.753999 7fd96f9a6a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:12:42.754000 7fd96f9a6a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:12:42.754001 7fd96f9a6a80 Options.bloom_locality: 0
+2021/03/14-08:12:42.754001 7fd96f9a6a80 Options.max_successive_merges: 0
+2021/03/14-08:12:42.754002 7fd96f9a6a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:12:42.754002 7fd96f9a6a80 Options.paranoid_file_checks: 0
+2021/03/14-08:12:42.754003 7fd96f9a6a80 Options.force_consistency_checks: 0
+2021/03/14-08:12:42.754003 7fd96f9a6a80 Options.report_bg_io_stats: 0
+2021/03/14-08:12:42.754381 7fd96f9a6a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:12:42.754384 7fd96f9a6a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:12:42.754555 7fd96f9a6a80 EVENT_LOG_v1 {"time_micros": 1615705962754545, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:12:42.754561 7fd96f9a6a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:12:43.461784 7fd96f9a6a80 EVENT_LOG_v1 {"time_micros": 1615705963461780, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708419108364 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708419108364
new file mode 100644
index 0000000..fed0958
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708419108364
@@ -0,0 +1,186 @@
+2021/03/14-08:53:38.390015 7fa8d4583a80 RocksDB version: 5.11.3
+2021/03/14-08:53:38.390073 7fa8d4583a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:53:38.390075 7fa8d4583a80 Compile date Mar 13 2021
+2021/03/14-08:53:38.390080 7fa8d4583a80 DB SUMMARY
+2021/03/14-08:53:38.390275 7fa8d4583a80 CURRENT file: CURRENT
+2021/03/14-08:53:38.390276 7fa8d4583a80 IDENTITY file: IDENTITY
+2021/03/14-08:53:38.390294 7fa8d4583a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:53:38.390296 7fa8d4583a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:53:38.390296 7fa8d4583a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:53:38.390303 7fa8d4583a80 Options.error_if_exists: 0
+2021/03/14-08:53:38.390304 7fa8d4583a80 Options.create_if_missing: 1
+2021/03/14-08:53:38.390304 7fa8d4583a80 Options.paranoid_checks: 1
+2021/03/14-08:53:38.390305 7fa8d4583a80 Options.env: 0x7fa8d4f3d080
+2021/03/14-08:53:38.390306 7fa8d4583a80 Options.info_log: 0x2950ca0
+2021/03/14-08:53:38.390306 7fa8d4583a80 Options.max_file_opening_threads: 16
+2021/03/14-08:53:38.390307 7fa8d4583a80 Options.statistics: (nil)
+2021/03/14-08:53:38.390308 7fa8d4583a80 Options.use_fsync: 0
+2021/03/14-08:53:38.390308 7fa8d4583a80 Options.max_log_file_size: 0
+2021/03/14-08:53:38.390309 7fa8d4583a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:53:38.390309 7fa8d4583a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:53:38.390310 7fa8d4583a80 Options.keep_log_file_num: 1000
+2021/03/14-08:53:38.390311 7fa8d4583a80 Options.recycle_log_file_num: 0
+2021/03/14-08:53:38.390311 7fa8d4583a80 Options.allow_fallocate: 1
+2021/03/14-08:53:38.390312 7fa8d4583a80 Options.allow_mmap_reads: 0
+2021/03/14-08:53:38.390312 7fa8d4583a80 Options.allow_mmap_writes: 0
+2021/03/14-08:53:38.390313 7fa8d4583a80 Options.use_direct_reads: 0
+2021/03/14-08:53:38.390314 7fa8d4583a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:53:38.390314 7fa8d4583a80 Options.create_missing_column_families: 0
+2021/03/14-08:53:38.390315 7fa8d4583a80 Options.db_log_dir:
+2021/03/14-08:53:38.390315 7fa8d4583a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:53:38.390316 7fa8d4583a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:53:38.390317 7fa8d4583a80 Options.max_subcompactions: 1
+2021/03/14-08:53:38.390317 7fa8d4583a80 Options.max_background_flushes: -1
+2021/03/14-08:53:38.390318 7fa8d4583a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:53:38.390318 7fa8d4583a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:53:38.390319 7fa8d4583a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:53:38.390320 7fa8d4583a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:53:38.390320 7fa8d4583a80 Options.advise_random_on_open: 1
+2021/03/14-08:53:38.390321 7fa8d4583a80 Options.db_write_buffer_size: 0
+2021/03/14-08:53:38.390321 7fa8d4583a80 Options.write_buffer_manager: 0x2938b90
+2021/03/14-08:53:38.390322 7fa8d4583a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:53:38.390322 7fa8d4583a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:53:38.390323 7fa8d4583a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:53:38.390324 7fa8d4583a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:53:38.390324 7fa8d4583a80 Options.rate_limiter: (nil)
+2021/03/14-08:53:38.390326 7fa8d4583a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:53:38.390335 7fa8d4583a80 Options.wal_recovery_mode: 2
+2021/03/14-08:53:38.390336 7fa8d4583a80 Options.enable_thread_tracking: 0
+2021/03/14-08:53:38.390337 7fa8d4583a80 Options.enable_pipelined_write: 0
+2021/03/14-08:53:38.390337 7fa8d4583a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:53:38.390338 7fa8d4583a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:53:38.390338 7fa8d4583a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:53:38.390339 7fa8d4583a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:53:38.390340 7fa8d4583a80 Options.row_cache: None
+2021/03/14-08:53:38.390340 7fa8d4583a80 Options.wal_filter: None
+2021/03/14-08:53:38.390341 7fa8d4583a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:53:38.390341 7fa8d4583a80 Options.allow_ingest_behind: 0
+2021/03/14-08:53:38.390342 7fa8d4583a80 Options.preserve_deletes: 0
+2021/03/14-08:53:38.390342 7fa8d4583a80 Options.two_write_queues: 0
+2021/03/14-08:53:38.390343 7fa8d4583a80 Options.manual_wal_flush: 0
+2021/03/14-08:53:38.390344 7fa8d4583a80 Options.max_background_jobs: 16
+2021/03/14-08:53:38.390345 7fa8d4583a80 Options.max_background_compactions: -1
+2021/03/14-08:53:38.390346 7fa8d4583a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:53:38.390346 7fa8d4583a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:53:38.390347 7fa8d4583a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:53:38.390347 7fa8d4583a80 Options.max_total_wal_size: 0
+2021/03/14-08:53:38.390348 7fa8d4583a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:53:38.390349 7fa8d4583a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:53:38.390349 7fa8d4583a80 Options.max_open_files: -1
+2021/03/14-08:53:38.390350 7fa8d4583a80 Options.bytes_per_sync: 0
+2021/03/14-08:53:38.390350 7fa8d4583a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:53:38.390351 7fa8d4583a80 Options.compaction_readahead_size: 0
+2021/03/14-08:53:38.390351 7fa8d4583a80 Compression algorithms supported:
+2021/03/14-08:53:38.390352 7fa8d4583a80 Snappy supported: 1
+2021/03/14-08:53:38.390353 7fa8d4583a80 Zlib supported: 1
+2021/03/14-08:53:38.390354 7fa8d4583a80 Bzip supported: 1
+2021/03/14-08:53:38.390354 7fa8d4583a80 LZ4 supported: 1
+2021/03/14-08:53:38.390355 7fa8d4583a80 ZSTDNotFinal supported: 1
+2021/03/14-08:53:38.390359 7fa8d4583a80 ZSTD supported: 1
+2021/03/14-08:53:38.390363 7fa8d4583a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:53:38.390365 7fa8d4583a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:53:38.390593 7fa8d4583a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:53:38.390657 7fa8d4583a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:53:38.390659 7fa8d4583a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:53:38.390660 7fa8d4583a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:53:38.390661 7fa8d4583a80 Options.compaction_filter: None
+2021/03/14-08:53:38.390661 7fa8d4583a80 Options.compaction_filter_factory: None
+2021/03/14-08:53:38.390662 7fa8d4583a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:53:38.390663 7fa8d4583a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:53:38.390681 7fa8d4583a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2948520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x292dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:53:38.390687 7fa8d4583a80 Options.write_buffer_size: 134217728
+2021/03/14-08:53:38.390688 7fa8d4583a80 Options.max_write_buffer_number: 6
+2021/03/14-08:53:38.390688 7fa8d4583a80 Options.compression[0]: NoCompression
+2021/03/14-08:53:38.390689 7fa8d4583a80 Options.compression[1]: NoCompression
+2021/03/14-08:53:38.390690 7fa8d4583a80 Options.compression[2]: Snappy
+2021/03/14-08:53:38.390690 7fa8d4583a80 Options.compression[3]: Snappy
+2021/03/14-08:53:38.390691 7fa8d4583a80 Options.compression[4]: Snappy
+2021/03/14-08:53:38.390692 7fa8d4583a80 Options.compression[5]: Snappy
+2021/03/14-08:53:38.390692 7fa8d4583a80 Options.compression[6]: Snappy
+2021/03/14-08:53:38.390693 7fa8d4583a80 Options.bottommost_compression: Disabled
+2021/03/14-08:53:38.390694 7fa8d4583a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:53:38.390694 7fa8d4583a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:53:38.390695 7fa8d4583a80 Options.num_levels: 7
+2021/03/14-08:53:38.390695 7fa8d4583a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:53:38.390696 7fa8d4583a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:53:38.390697 7fa8d4583a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:53:38.390697 7fa8d4583a80 Options.compression_opts.level: -1
+2021/03/14-08:53:38.390698 7fa8d4583a80 Options.compression_opts.strategy: 0
+2021/03/14-08:53:38.390698 7fa8d4583a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:53:38.390699 7fa8d4583a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:53:38.390700 7fa8d4583a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:53:38.390700 7fa8d4583a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:53:38.390701 7fa8d4583a80 Options.target_file_size_base: 67108864
+2021/03/14-08:53:38.390701 7fa8d4583a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:53:38.390702 7fa8d4583a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:53:38.390703 7fa8d4583a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:53:38.390703 7fa8d4583a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:53:38.390705 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:53:38.390714 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:53:38.390715 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:53:38.390715 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:53:38.390716 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:53:38.390717 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:53:38.390717 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:53:38.390718 7fa8d4583a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:53:38.390718 7fa8d4583a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:53:38.390719 7fa8d4583a80 Options.arena_block_size: 16777216
+2021/03/14-08:53:38.390720 7fa8d4583a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:53:38.390720 7fa8d4583a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:53:38.390721 7fa8d4583a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:53:38.390722 7fa8d4583a80 Options.disable_auto_compactions: 0
+2021/03/14-08:53:38.390724 7fa8d4583a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:53:38.390724 7fa8d4583a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:53:38.390725 7fa8d4583a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:53:38.390726 7fa8d4583a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:53:38.390726 7fa8d4583a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:53:38.390727 7fa8d4583a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:53:38.390727 7fa8d4583a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:53:38.390728 7fa8d4583a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:53:38.390729 7fa8d4583a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:53:38.390730 7fa8d4583a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:53:38.390730 7fa8d4583a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:53:38.390731 7fa8d4583a80 Options.table_properties_collectors:
+2021/03/14-08:53:38.390731 7fa8d4583a80 Options.inplace_update_support: 0
+2021/03/14-08:53:38.390732 7fa8d4583a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:53:38.390733 7fa8d4583a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:53:38.390733 7fa8d4583a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:53:38.390734 7fa8d4583a80 Options.bloom_locality: 0
+2021/03/14-08:53:38.390735 7fa8d4583a80 Options.max_successive_merges: 0
+2021/03/14-08:53:38.390735 7fa8d4583a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:53:38.390736 7fa8d4583a80 Options.paranoid_file_checks: 0
+2021/03/14-08:53:38.390736 7fa8d4583a80 Options.force_consistency_checks: 0
+2021/03/14-08:53:38.390737 7fa8d4583a80 Options.report_bg_io_stats: 0
+2021/03/14-08:53:38.391307 7fa8d4583a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:53:38.391311 7fa8d4583a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:53:38.391570 7fa8d4583a80 EVENT_LOG_v1 {"time_micros": 1615708418391548, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:53:38.391580 7fa8d4583a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:53:39.096227 7fa8d4583a80 EVENT_LOG_v1 {"time_micros": 1615708419096223, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708419813226 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708419813226
new file mode 100644
index 0000000..b2f69cc
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708419813226
@@ -0,0 +1,186 @@
+2021/03/14-08:53:39.108791 7fa8d4583a80 RocksDB version: 5.11.3
+2021/03/14-08:53:39.108844 7fa8d4583a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:53:39.108845 7fa8d4583a80 Compile date Mar 13 2021
+2021/03/14-08:53:39.108850 7fa8d4583a80 DB SUMMARY
+2021/03/14-08:53:39.109027 7fa8d4583a80 CURRENT file: CURRENT
+2021/03/14-08:53:39.109028 7fa8d4583a80 IDENTITY file: IDENTITY
+2021/03/14-08:53:39.109046 7fa8d4583a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:53:39.109047 7fa8d4583a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:53:39.109048 7fa8d4583a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:53:39.109054 7fa8d4583a80 Options.error_if_exists: 0
+2021/03/14-08:53:39.109055 7fa8d4583a80 Options.create_if_missing: 1
+2021/03/14-08:53:39.109055 7fa8d4583a80 Options.paranoid_checks: 1
+2021/03/14-08:53:39.109056 7fa8d4583a80 Options.env: 0x7fa8d4f3d080
+2021/03/14-08:53:39.109056 7fa8d4583a80 Options.info_log: 0x2950ca0
+2021/03/14-08:53:39.109057 7fa8d4583a80 Options.max_file_opening_threads: 16
+2021/03/14-08:53:39.109058 7fa8d4583a80 Options.statistics: (nil)
+2021/03/14-08:53:39.109058 7fa8d4583a80 Options.use_fsync: 0
+2021/03/14-08:53:39.109059 7fa8d4583a80 Options.max_log_file_size: 0
+2021/03/14-08:53:39.109060 7fa8d4583a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:53:39.109060 7fa8d4583a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:53:39.109061 7fa8d4583a80 Options.keep_log_file_num: 1000
+2021/03/14-08:53:39.109061 7fa8d4583a80 Options.recycle_log_file_num: 0
+2021/03/14-08:53:39.109062 7fa8d4583a80 Options.allow_fallocate: 1
+2021/03/14-08:53:39.109063 7fa8d4583a80 Options.allow_mmap_reads: 0
+2021/03/14-08:53:39.109063 7fa8d4583a80 Options.allow_mmap_writes: 0
+2021/03/14-08:53:39.109064 7fa8d4583a80 Options.use_direct_reads: 0
+2021/03/14-08:53:39.109064 7fa8d4583a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:53:39.109065 7fa8d4583a80 Options.create_missing_column_families: 0
+2021/03/14-08:53:39.109065 7fa8d4583a80 Options.db_log_dir:
+2021/03/14-08:53:39.109066 7fa8d4583a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:53:39.109066 7fa8d4583a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:53:39.109067 7fa8d4583a80 Options.max_subcompactions: 1
+2021/03/14-08:53:39.109068 7fa8d4583a80 Options.max_background_flushes: -1
+2021/03/14-08:53:39.109068 7fa8d4583a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:53:39.109069 7fa8d4583a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:53:39.109069 7fa8d4583a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:53:39.109070 7fa8d4583a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:53:39.109070 7fa8d4583a80 Options.advise_random_on_open: 1
+2021/03/14-08:53:39.109071 7fa8d4583a80 Options.db_write_buffer_size: 0
+2021/03/14-08:53:39.109071 7fa8d4583a80 Options.write_buffer_manager: 0x2938b90
+2021/03/14-08:53:39.109072 7fa8d4583a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:53:39.109073 7fa8d4583a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:53:39.109073 7fa8d4583a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:53:39.109074 7fa8d4583a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:53:39.109074 7fa8d4583a80 Options.rate_limiter: (nil)
+2021/03/14-08:53:39.109076 7fa8d4583a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:53:39.109084 7fa8d4583a80 Options.wal_recovery_mode: 2
+2021/03/14-08:53:39.109084 7fa8d4583a80 Options.enable_thread_tracking: 0
+2021/03/14-08:53:39.109085 7fa8d4583a80 Options.enable_pipelined_write: 0
+2021/03/14-08:53:39.109085 7fa8d4583a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:53:39.109086 7fa8d4583a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:53:39.109086 7fa8d4583a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:53:39.109087 7fa8d4583a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:53:39.109088 7fa8d4583a80 Options.row_cache: None
+2021/03/14-08:53:39.109088 7fa8d4583a80 Options.wal_filter: None
+2021/03/14-08:53:39.109089 7fa8d4583a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:53:39.109089 7fa8d4583a80 Options.allow_ingest_behind: 0
+2021/03/14-08:53:39.109090 7fa8d4583a80 Options.preserve_deletes: 0
+2021/03/14-08:53:39.109090 7fa8d4583a80 Options.two_write_queues: 0
+2021/03/14-08:53:39.109091 7fa8d4583a80 Options.manual_wal_flush: 0
+2021/03/14-08:53:39.109092 7fa8d4583a80 Options.max_background_jobs: 16
+2021/03/14-08:53:39.109093 7fa8d4583a80 Options.max_background_compactions: -1
+2021/03/14-08:53:39.109093 7fa8d4583a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:53:39.109094 7fa8d4583a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:53:39.109094 7fa8d4583a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:53:39.109095 7fa8d4583a80 Options.max_total_wal_size: 0
+2021/03/14-08:53:39.109095 7fa8d4583a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:53:39.109096 7fa8d4583a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:53:39.109097 7fa8d4583a80 Options.max_open_files: -1
+2021/03/14-08:53:39.109097 7fa8d4583a80 Options.bytes_per_sync: 0
+2021/03/14-08:53:39.109098 7fa8d4583a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:53:39.109098 7fa8d4583a80 Options.compaction_readahead_size: 0
+2021/03/14-08:53:39.109099 7fa8d4583a80 Compression algorithms supported:
+2021/03/14-08:53:39.109099 7fa8d4583a80 Snappy supported: 1
+2021/03/14-08:53:39.109100 7fa8d4583a80 Zlib supported: 1
+2021/03/14-08:53:39.109101 7fa8d4583a80 Bzip supported: 1
+2021/03/14-08:53:39.109101 7fa8d4583a80 LZ4 supported: 1
+2021/03/14-08:53:39.109102 7fa8d4583a80 ZSTDNotFinal supported: 1
+2021/03/14-08:53:39.109106 7fa8d4583a80 ZSTD supported: 1
+2021/03/14-08:53:39.109109 7fa8d4583a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:53:39.109110 7fa8d4583a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:53:39.109201 7fa8d4583a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:53:39.109264 7fa8d4583a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:53:39.109266 7fa8d4583a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:53:39.109267 7fa8d4583a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:53:39.109267 7fa8d4583a80 Options.compaction_filter: None
+2021/03/14-08:53:39.109268 7fa8d4583a80 Options.compaction_filter_factory: None
+2021/03/14-08:53:39.109269 7fa8d4583a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:53:39.109269 7fa8d4583a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:53:39.109301 7fa8d4583a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2948520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x292dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:53:39.109306 7fa8d4583a80 Options.write_buffer_size: 134217728
+2021/03/14-08:53:39.109307 7fa8d4583a80 Options.max_write_buffer_number: 6
+2021/03/14-08:53:39.109308 7fa8d4583a80 Options.compression[0]: NoCompression
+2021/03/14-08:53:39.109308 7fa8d4583a80 Options.compression[1]: NoCompression
+2021/03/14-08:53:39.109309 7fa8d4583a80 Options.compression[2]: Snappy
+2021/03/14-08:53:39.109310 7fa8d4583a80 Options.compression[3]: Snappy
+2021/03/14-08:53:39.109310 7fa8d4583a80 Options.compression[4]: Snappy
+2021/03/14-08:53:39.109311 7fa8d4583a80 Options.compression[5]: Snappy
+2021/03/14-08:53:39.109311 7fa8d4583a80 Options.compression[6]: Snappy
+2021/03/14-08:53:39.109312 7fa8d4583a80 Options.bottommost_compression: Disabled
+2021/03/14-08:53:39.109313 7fa8d4583a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:53:39.109313 7fa8d4583a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:53:39.109314 7fa8d4583a80 Options.num_levels: 7
+2021/03/14-08:53:39.109314 7fa8d4583a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:53:39.109315 7fa8d4583a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:53:39.109315 7fa8d4583a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:53:39.109316 7fa8d4583a80 Options.compression_opts.level: -1
+2021/03/14-08:53:39.109317 7fa8d4583a80 Options.compression_opts.strategy: 0
+2021/03/14-08:53:39.109317 7fa8d4583a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:53:39.109318 7fa8d4583a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:53:39.109318 7fa8d4583a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:53:39.109319 7fa8d4583a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:53:39.109319 7fa8d4583a80 Options.target_file_size_base: 67108864
+2021/03/14-08:53:39.109320 7fa8d4583a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:53:39.109320 7fa8d4583a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:53:39.109321 7fa8d4583a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:53:39.109322 7fa8d4583a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:53:39.109323 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:53:39.109332 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:53:39.109333 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:53:39.109333 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:53:39.109334 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:53:39.109334 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:53:39.109335 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:53:39.109335 7fa8d4583a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:53:39.109336 7fa8d4583a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:53:39.109336 7fa8d4583a80 Options.arena_block_size: 16777216
+2021/03/14-08:53:39.109337 7fa8d4583a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:53:39.109338 7fa8d4583a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:53:39.109338 7fa8d4583a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:53:39.109339 7fa8d4583a80 Options.disable_auto_compactions: 0
+2021/03/14-08:53:39.109340 7fa8d4583a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:53:39.109341 7fa8d4583a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:53:39.109342 7fa8d4583a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:53:39.109342 7fa8d4583a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:53:39.109343 7fa8d4583a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:53:39.109343 7fa8d4583a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:53:39.109344 7fa8d4583a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:53:39.109345 7fa8d4583a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:53:39.109345 7fa8d4583a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:53:39.109346 7fa8d4583a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:53:39.109346 7fa8d4583a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:53:39.109347 7fa8d4583a80 Options.table_properties_collectors:
+2021/03/14-08:53:39.109348 7fa8d4583a80 Options.inplace_update_support: 0
+2021/03/14-08:53:39.109348 7fa8d4583a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:53:39.109349 7fa8d4583a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:53:39.109350 7fa8d4583a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:53:39.109350 7fa8d4583a80 Options.bloom_locality: 0
+2021/03/14-08:53:39.109351 7fa8d4583a80 Options.max_successive_merges: 0
+2021/03/14-08:53:39.109351 7fa8d4583a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:53:39.109352 7fa8d4583a80 Options.paranoid_file_checks: 0
+2021/03/14-08:53:39.109352 7fa8d4583a80 Options.force_consistency_checks: 0
+2021/03/14-08:53:39.109353 7fa8d4583a80 Options.report_bg_io_stats: 0
+2021/03/14-08:53:39.109984 7fa8d4583a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:53:39.109987 7fa8d4583a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:53:39.110160 7fa8d4583a80 EVENT_LOG_v1 {"time_micros": 1615708419110149, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:53:39.110166 7fa8d4583a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:53:39.801108 7fa8d4583a80 EVENT_LOG_v1 {"time_micros": 1615708419801104, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708420520208 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708420520208
new file mode 100644
index 0000000..7d395b8
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708420520208
@@ -0,0 +1,186 @@
+2021/03/14-08:53:39.813686 7fa8d4583a80 RocksDB version: 5.11.3
+2021/03/14-08:53:39.813740 7fa8d4583a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:53:39.813742 7fa8d4583a80 Compile date Mar 13 2021
+2021/03/14-08:53:39.813746 7fa8d4583a80 DB SUMMARY
+2021/03/14-08:53:39.813924 7fa8d4583a80 CURRENT file: CURRENT
+2021/03/14-08:53:39.813925 7fa8d4583a80 IDENTITY file: IDENTITY
+2021/03/14-08:53:39.813943 7fa8d4583a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:53:39.813944 7fa8d4583a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:53:39.813945 7fa8d4583a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:53:39.813951 7fa8d4583a80 Options.error_if_exists: 0
+2021/03/14-08:53:39.813952 7fa8d4583a80 Options.create_if_missing: 1
+2021/03/14-08:53:39.813952 7fa8d4583a80 Options.paranoid_checks: 1
+2021/03/14-08:53:39.813953 7fa8d4583a80 Options.env: 0x7fa8d4f3d080
+2021/03/14-08:53:39.813953 7fa8d4583a80 Options.info_log: 0x2950ca0
+2021/03/14-08:53:39.813954 7fa8d4583a80 Options.max_file_opening_threads: 16
+2021/03/14-08:53:39.813955 7fa8d4583a80 Options.statistics: (nil)
+2021/03/14-08:53:39.813955 7fa8d4583a80 Options.use_fsync: 0
+2021/03/14-08:53:39.813956 7fa8d4583a80 Options.max_log_file_size: 0
+2021/03/14-08:53:39.813956 7fa8d4583a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:53:39.813957 7fa8d4583a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:53:39.813958 7fa8d4583a80 Options.keep_log_file_num: 1000
+2021/03/14-08:53:39.813958 7fa8d4583a80 Options.recycle_log_file_num: 0
+2021/03/14-08:53:39.813959 7fa8d4583a80 Options.allow_fallocate: 1
+2021/03/14-08:53:39.813959 7fa8d4583a80 Options.allow_mmap_reads: 0
+2021/03/14-08:53:39.813960 7fa8d4583a80 Options.allow_mmap_writes: 0
+2021/03/14-08:53:39.813960 7fa8d4583a80 Options.use_direct_reads: 0
+2021/03/14-08:53:39.813961 7fa8d4583a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:53:39.813962 7fa8d4583a80 Options.create_missing_column_families: 0
+2021/03/14-08:53:39.813962 7fa8d4583a80 Options.db_log_dir:
+2021/03/14-08:53:39.813963 7fa8d4583a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:53:39.813963 7fa8d4583a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:53:39.813964 7fa8d4583a80 Options.max_subcompactions: 1
+2021/03/14-08:53:39.813964 7fa8d4583a80 Options.max_background_flushes: -1
+2021/03/14-08:53:39.813965 7fa8d4583a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:53:39.813966 7fa8d4583a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:53:39.813966 7fa8d4583a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:53:39.813967 7fa8d4583a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:53:39.813967 7fa8d4583a80 Options.advise_random_on_open: 1
+2021/03/14-08:53:39.813968 7fa8d4583a80 Options.db_write_buffer_size: 0
+2021/03/14-08:53:39.813968 7fa8d4583a80 Options.write_buffer_manager: 0x2938b90
+2021/03/14-08:53:39.813969 7fa8d4583a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:53:39.813970 7fa8d4583a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:53:39.813970 7fa8d4583a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:53:39.813971 7fa8d4583a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:53:39.813971 7fa8d4583a80 Options.rate_limiter: (nil)
+2021/03/14-08:53:39.813973 7fa8d4583a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:53:39.813980 7fa8d4583a80 Options.wal_recovery_mode: 2
+2021/03/14-08:53:39.813981 7fa8d4583a80 Options.enable_thread_tracking: 0
+2021/03/14-08:53:39.813981 7fa8d4583a80 Options.enable_pipelined_write: 0
+2021/03/14-08:53:39.813982 7fa8d4583a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:53:39.813982 7fa8d4583a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:53:39.813983 7fa8d4583a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:53:39.813984 7fa8d4583a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:53:39.813984 7fa8d4583a80 Options.row_cache: None
+2021/03/14-08:53:39.813985 7fa8d4583a80 Options.wal_filter: None
+2021/03/14-08:53:39.813985 7fa8d4583a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:53:39.813986 7fa8d4583a80 Options.allow_ingest_behind: 0
+2021/03/14-08:53:39.813986 7fa8d4583a80 Options.preserve_deletes: 0
+2021/03/14-08:53:39.813987 7fa8d4583a80 Options.two_write_queues: 0
+2021/03/14-08:53:39.813987 7fa8d4583a80 Options.manual_wal_flush: 0
+2021/03/14-08:53:39.813989 7fa8d4583a80 Options.max_background_jobs: 16
+2021/03/14-08:53:39.813989 7fa8d4583a80 Options.max_background_compactions: -1
+2021/03/14-08:53:39.813990 7fa8d4583a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:53:39.813990 7fa8d4583a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:53:39.813991 7fa8d4583a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:53:39.813991 7fa8d4583a80 Options.max_total_wal_size: 0
+2021/03/14-08:53:39.813992 7fa8d4583a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:53:39.813993 7fa8d4583a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:53:39.813993 7fa8d4583a80 Options.max_open_files: -1
+2021/03/14-08:53:39.813994 7fa8d4583a80 Options.bytes_per_sync: 0
+2021/03/14-08:53:39.813994 7fa8d4583a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:53:39.813995 7fa8d4583a80 Options.compaction_readahead_size: 0
+2021/03/14-08:53:39.813995 7fa8d4583a80 Compression algorithms supported:
+2021/03/14-08:53:39.813996 7fa8d4583a80 Snappy supported: 1
+2021/03/14-08:53:39.813997 7fa8d4583a80 Zlib supported: 1
+2021/03/14-08:53:39.813997 7fa8d4583a80 Bzip supported: 1
+2021/03/14-08:53:39.813998 7fa8d4583a80 LZ4 supported: 1
+2021/03/14-08:53:39.813998 7fa8d4583a80 ZSTDNotFinal supported: 1
+2021/03/14-08:53:39.814002 7fa8d4583a80 ZSTD supported: 1
+2021/03/14-08:53:39.814005 7fa8d4583a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:53:39.814007 7fa8d4583a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:53:39.814100 7fa8d4583a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:53:39.814156 7fa8d4583a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:53:39.814157 7fa8d4583a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:53:39.814158 7fa8d4583a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:53:39.814159 7fa8d4583a80 Options.compaction_filter: None
+2021/03/14-08:53:39.814159 7fa8d4583a80 Options.compaction_filter_factory: None
+2021/03/14-08:53:39.814160 7fa8d4583a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:53:39.814161 7fa8d4583a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:53:39.814178 7fa8d4583a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2948520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x292dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:53:39.814184 7fa8d4583a80 Options.write_buffer_size: 134217728
+2021/03/14-08:53:39.814184 7fa8d4583a80 Options.max_write_buffer_number: 6
+2021/03/14-08:53:39.814185 7fa8d4583a80 Options.compression[0]: NoCompression
+2021/03/14-08:53:39.814186 7fa8d4583a80 Options.compression[1]: NoCompression
+2021/03/14-08:53:39.814186 7fa8d4583a80 Options.compression[2]: Snappy
+2021/03/14-08:53:39.814187 7fa8d4583a80 Options.compression[3]: Snappy
+2021/03/14-08:53:39.814188 7fa8d4583a80 Options.compression[4]: Snappy
+2021/03/14-08:53:39.814188 7fa8d4583a80 Options.compression[5]: Snappy
+2021/03/14-08:53:39.814189 7fa8d4583a80 Options.compression[6]: Snappy
+2021/03/14-08:53:39.814189 7fa8d4583a80 Options.bottommost_compression: Disabled
+2021/03/14-08:53:39.814190 7fa8d4583a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:53:39.814191 7fa8d4583a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:53:39.814191 7fa8d4583a80 Options.num_levels: 7
+2021/03/14-08:53:39.814192 7fa8d4583a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:53:39.814192 7fa8d4583a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:53:39.814193 7fa8d4583a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:53:39.814194 7fa8d4583a80 Options.compression_opts.level: -1
+2021/03/14-08:53:39.814194 7fa8d4583a80 Options.compression_opts.strategy: 0
+2021/03/14-08:53:39.814195 7fa8d4583a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:53:39.814195 7fa8d4583a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:53:39.814196 7fa8d4583a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:53:39.814196 7fa8d4583a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:53:39.814197 7fa8d4583a80 Options.target_file_size_base: 67108864
+2021/03/14-08:53:39.814197 7fa8d4583a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:53:39.814198 7fa8d4583a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:53:39.814199 7fa8d4583a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:53:39.814199 7fa8d4583a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:53:39.814201 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:53:39.814208 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:53:39.814209 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:53:39.814210 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:53:39.814210 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:53:39.814211 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:53:39.814211 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:53:39.814212 7fa8d4583a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:53:39.814213 7fa8d4583a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:53:39.814213 7fa8d4583a80 Options.arena_block_size: 16777216
+2021/03/14-08:53:39.814214 7fa8d4583a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:53:39.814214 7fa8d4583a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:53:39.814215 7fa8d4583a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:53:39.814216 7fa8d4583a80 Options.disable_auto_compactions: 0
+2021/03/14-08:53:39.814218 7fa8d4583a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:53:39.814218 7fa8d4583a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:53:39.814219 7fa8d4583a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:53:39.814219 7fa8d4583a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:53:39.814220 7fa8d4583a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:53:39.814221 7fa8d4583a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:53:39.814221 7fa8d4583a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:53:39.814222 7fa8d4583a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:53:39.814223 7fa8d4583a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:53:39.814223 7fa8d4583a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:53:39.814224 7fa8d4583a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:53:39.814224 7fa8d4583a80 Options.table_properties_collectors:
+2021/03/14-08:53:39.814225 7fa8d4583a80 Options.inplace_update_support: 0
+2021/03/14-08:53:39.814226 7fa8d4583a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:53:39.814226 7fa8d4583a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:53:39.814227 7fa8d4583a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:53:39.814228 7fa8d4583a80 Options.bloom_locality: 0
+2021/03/14-08:53:39.814228 7fa8d4583a80 Options.max_successive_merges: 0
+2021/03/14-08:53:39.814229 7fa8d4583a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:53:39.814229 7fa8d4583a80 Options.paranoid_file_checks: 0
+2021/03/14-08:53:39.814230 7fa8d4583a80 Options.force_consistency_checks: 0
+2021/03/14-08:53:39.814230 7fa8d4583a80 Options.report_bg_io_stats: 0
+2021/03/14-08:53:39.814743 7fa8d4583a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:53:39.814745 7fa8d4583a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:53:39.814918 7fa8d4583a80 EVENT_LOG_v1 {"time_micros": 1615708419814907, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:53:39.814923 7fa8d4583a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:53:40.507922 7fa8d4583a80 EVENT_LOG_v1 {"time_micros": 1615708420507919, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708688427842 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708688427842
new file mode 100644
index 0000000..7683e39
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708688427842
@@ -0,0 +1,186 @@
+2021/03/14-08:53:40.520642 7fa8d4583a80 RocksDB version: 5.11.3
+2021/03/14-08:53:40.520696 7fa8d4583a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:53:40.520697 7fa8d4583a80 Compile date Mar 13 2021
+2021/03/14-08:53:40.520702 7fa8d4583a80 DB SUMMARY
+2021/03/14-08:53:40.520879 7fa8d4583a80 CURRENT file: CURRENT
+2021/03/14-08:53:40.520880 7fa8d4583a80 IDENTITY file: IDENTITY
+2021/03/14-08:53:40.520897 7fa8d4583a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:53:40.520898 7fa8d4583a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:53:40.520899 7fa8d4583a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:53:40.520905 7fa8d4583a80 Options.error_if_exists: 0
+2021/03/14-08:53:40.520906 7fa8d4583a80 Options.create_if_missing: 1
+2021/03/14-08:53:40.520907 7fa8d4583a80 Options.paranoid_checks: 1
+2021/03/14-08:53:40.520907 7fa8d4583a80 Options.env: 0x7fa8d4f3d080
+2021/03/14-08:53:40.520908 7fa8d4583a80 Options.info_log: 0x2950ca0
+2021/03/14-08:53:40.520908 7fa8d4583a80 Options.max_file_opening_threads: 16
+2021/03/14-08:53:40.520909 7fa8d4583a80 Options.statistics: (nil)
+2021/03/14-08:53:40.520910 7fa8d4583a80 Options.use_fsync: 0
+2021/03/14-08:53:40.520910 7fa8d4583a80 Options.max_log_file_size: 0
+2021/03/14-08:53:40.520911 7fa8d4583a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:53:40.520912 7fa8d4583a80 Options.log_file_time_to_roll: 0
+2021/03/14-08:53:40.520912 7fa8d4583a80 Options.keep_log_file_num: 1000
+2021/03/14-08:53:40.520913 7fa8d4583a80 Options.recycle_log_file_num: 0
+2021/03/14-08:53:40.520913 7fa8d4583a80 Options.allow_fallocate: 1
+2021/03/14-08:53:40.520914 7fa8d4583a80 Options.allow_mmap_reads: 0
+2021/03/14-08:53:40.520914 7fa8d4583a80 Options.allow_mmap_writes: 0
+2021/03/14-08:53:40.520915 7fa8d4583a80 Options.use_direct_reads: 0
+2021/03/14-08:53:40.520916 7fa8d4583a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:53:40.520916 7fa8d4583a80 Options.create_missing_column_families: 0
+2021/03/14-08:53:40.520917 7fa8d4583a80 Options.db_log_dir:
+2021/03/14-08:53:40.520917 7fa8d4583a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:53:40.520918 7fa8d4583a80 Options.table_cache_numshardbits: 6
+2021/03/14-08:53:40.520918 7fa8d4583a80 Options.max_subcompactions: 1
+2021/03/14-08:53:40.520919 7fa8d4583a80 Options.max_background_flushes: -1
+2021/03/14-08:53:40.520920 7fa8d4583a80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:53:40.520920 7fa8d4583a80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:53:40.520921 7fa8d4583a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:53:40.520921 7fa8d4583a80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:53:40.520922 7fa8d4583a80 Options.advise_random_on_open: 1
+2021/03/14-08:53:40.520922 7fa8d4583a80 Options.db_write_buffer_size: 0
+2021/03/14-08:53:40.520923 7fa8d4583a80 Options.write_buffer_manager: 0x2938b90
+2021/03/14-08:53:40.520923 7fa8d4583a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:53:40.520924 7fa8d4583a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:53:40.520925 7fa8d4583a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:53:40.520925 7fa8d4583a80 Options.use_adaptive_mutex: 0
+2021/03/14-08:53:40.520926 7fa8d4583a80 Options.rate_limiter: (nil)
+2021/03/14-08:53:40.520927 7fa8d4583a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:53:40.520935 7fa8d4583a80 Options.wal_recovery_mode: 2
+2021/03/14-08:53:40.520936 7fa8d4583a80 Options.enable_thread_tracking: 0
+2021/03/14-08:53:40.520936 7fa8d4583a80 Options.enable_pipelined_write: 0
+2021/03/14-08:53:40.520937 7fa8d4583a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:53:40.520937 7fa8d4583a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:53:40.520938 7fa8d4583a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:53:40.520938 7fa8d4583a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:53:40.520939 7fa8d4583a80 Options.row_cache: None
+2021/03/14-08:53:40.520939 7fa8d4583a80 Options.wal_filter: None
+2021/03/14-08:53:40.520940 7fa8d4583a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:53:40.520941 7fa8d4583a80 Options.allow_ingest_behind: 0
+2021/03/14-08:53:40.520941 7fa8d4583a80 Options.preserve_deletes: 0
+2021/03/14-08:53:40.520942 7fa8d4583a80 Options.two_write_queues: 0
+2021/03/14-08:53:40.520942 7fa8d4583a80 Options.manual_wal_flush: 0
+2021/03/14-08:53:40.520944 7fa8d4583a80 Options.max_background_jobs: 16
+2021/03/14-08:53:40.520944 7fa8d4583a80 Options.max_background_compactions: -1
+2021/03/14-08:53:40.520945 7fa8d4583a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:53:40.520945 7fa8d4583a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:53:40.520946 7fa8d4583a80 Options.delayed_write_rate : 16777216
+2021/03/14-08:53:40.520946 7fa8d4583a80 Options.max_total_wal_size: 0
+2021/03/14-08:53:40.520947 7fa8d4583a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:53:40.520948 7fa8d4583a80 Options.stats_dump_period_sec: 600
+2021/03/14-08:53:40.520948 7fa8d4583a80 Options.max_open_files: -1
+2021/03/14-08:53:40.520949 7fa8d4583a80 Options.bytes_per_sync: 0
+2021/03/14-08:53:40.520949 7fa8d4583a80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:53:40.520950 7fa8d4583a80 Options.compaction_readahead_size: 0
+2021/03/14-08:53:40.520950 7fa8d4583a80 Compression algorithms supported:
+2021/03/14-08:53:40.520951 7fa8d4583a80 Snappy supported: 1
+2021/03/14-08:53:40.520952 7fa8d4583a80 Zlib supported: 1
+2021/03/14-08:53:40.520952 7fa8d4583a80 Bzip supported: 1
+2021/03/14-08:53:40.520953 7fa8d4583a80 LZ4 supported: 1
+2021/03/14-08:53:40.520953 7fa8d4583a80 ZSTDNotFinal supported: 1
+2021/03/14-08:53:40.520957 7fa8d4583a80 ZSTD supported: 1
+2021/03/14-08:53:40.520960 7fa8d4583a80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:53:40.520962 7fa8d4583a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:53:40.521052 7fa8d4583a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:53:40.521106 7fa8d4583a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:53:40.521107 7fa8d4583a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:53:40.521108 7fa8d4583a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:53:40.521109 7fa8d4583a80 Options.compaction_filter: None
+2021/03/14-08:53:40.521109 7fa8d4583a80 Options.compaction_filter_factory: None
+2021/03/14-08:53:40.521110 7fa8d4583a80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:53:40.521111 7fa8d4583a80 Options.table_factory: BlockBasedTable
+2021/03/14-08:53:40.521127 7fa8d4583a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2948520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x292dc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:53:40.521133 7fa8d4583a80 Options.write_buffer_size: 134217728
+2021/03/14-08:53:40.521133 7fa8d4583a80 Options.max_write_buffer_number: 6
+2021/03/14-08:53:40.521134 7fa8d4583a80 Options.compression[0]: NoCompression
+2021/03/14-08:53:40.521135 7fa8d4583a80 Options.compression[1]: NoCompression
+2021/03/14-08:53:40.521135 7fa8d4583a80 Options.compression[2]: Snappy
+2021/03/14-08:53:40.521136 7fa8d4583a80 Options.compression[3]: Snappy
+2021/03/14-08:53:40.521137 7fa8d4583a80 Options.compression[4]: Snappy
+2021/03/14-08:53:40.521137 7fa8d4583a80 Options.compression[5]: Snappy
+2021/03/14-08:53:40.521138 7fa8d4583a80 Options.compression[6]: Snappy
+2021/03/14-08:53:40.521138 7fa8d4583a80 Options.bottommost_compression: Disabled
+2021/03/14-08:53:40.521139 7fa8d4583a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:53:40.521140 7fa8d4583a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:53:40.521140 7fa8d4583a80 Options.num_levels: 7
+2021/03/14-08:53:40.521141 7fa8d4583a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:53:40.521141 7fa8d4583a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:53:40.521142 7fa8d4583a80 Options.compression_opts.window_bits: -14
+2021/03/14-08:53:40.521143 7fa8d4583a80 Options.compression_opts.level: -1
+2021/03/14-08:53:40.521143 7fa8d4583a80 Options.compression_opts.strategy: 0
+2021/03/14-08:53:40.521144 7fa8d4583a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:53:40.521144 7fa8d4583a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:53:40.521145 7fa8d4583a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:53:40.521145 7fa8d4583a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:53:40.521146 7fa8d4583a80 Options.target_file_size_base: 67108864
+2021/03/14-08:53:40.521147 7fa8d4583a80 Options.target_file_size_multiplier: 1
+2021/03/14-08:53:40.521147 7fa8d4583a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:53:40.521148 7fa8d4583a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:53:40.521148 7fa8d4583a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:53:40.521150 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:53:40.521158 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:53:40.521158 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:53:40.521159 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:53:40.521159 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:53:40.521160 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:53:40.521161 7fa8d4583a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:53:40.521161 7fa8d4583a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:53:40.521162 7fa8d4583a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:53:40.521162 7fa8d4583a80 Options.arena_block_size: 16777216
+2021/03/14-08:53:40.521163 7fa8d4583a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:53:40.521163 7fa8d4583a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:53:40.521164 7fa8d4583a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:53:40.521165 7fa8d4583a80 Options.disable_auto_compactions: 0
+2021/03/14-08:53:40.521166 7fa8d4583a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:53:40.521167 7fa8d4583a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:53:40.521168 7fa8d4583a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:53:40.521168 7fa8d4583a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:53:40.521169 7fa8d4583a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:53:40.521169 7fa8d4583a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:53:40.521170 7fa8d4583a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:53:40.521171 7fa8d4583a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:53:40.521171 7fa8d4583a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:53:40.521172 7fa8d4583a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:53:40.521173 7fa8d4583a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:53:40.521173 7fa8d4583a80 Options.table_properties_collectors:
+2021/03/14-08:53:40.521174 7fa8d4583a80 Options.inplace_update_support: 0
+2021/03/14-08:53:40.521174 7fa8d4583a80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:53:40.521175 7fa8d4583a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:53:40.521176 7fa8d4583a80 Options.memtable_huge_page_size: 0
+2021/03/14-08:53:40.521176 7fa8d4583a80 Options.bloom_locality: 0
+2021/03/14-08:53:40.521177 7fa8d4583a80 Options.max_successive_merges: 0
+2021/03/14-08:53:40.521177 7fa8d4583a80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:53:40.521178 7fa8d4583a80 Options.paranoid_file_checks: 0
+2021/03/14-08:53:40.521178 7fa8d4583a80 Options.force_consistency_checks: 0
+2021/03/14-08:53:40.521179 7fa8d4583a80 Options.report_bg_io_stats: 0
+2021/03/14-08:53:40.521550 7fa8d4583a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:53:40.521552 7fa8d4583a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:53:40.521724 7fa8d4583a80 EVENT_LOG_v1 {"time_micros": 1615708420521713, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:53:40.521730 7fa8d4583a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:53:41.207577 7fa8d4583a80 EVENT_LOG_v1 {"time_micros": 1615708421207574, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708689147708 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708689147708
new file mode 100644
index 0000000..b86ba90
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708689147708
@@ -0,0 +1,186 @@
+2021/03/14-08:58:08.428405 7f60592ffa80 RocksDB version: 5.11.3
+2021/03/14-08:58:08.428482 7f60592ffa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:58:08.428484 7f60592ffa80 Compile date Mar 13 2021
+2021/03/14-08:58:08.428487 7f60592ffa80 DB SUMMARY
+2021/03/14-08:58:08.428682 7f60592ffa80 CURRENT file: CURRENT
+2021/03/14-08:58:08.428683 7f60592ffa80 IDENTITY file: IDENTITY
+2021/03/14-08:58:08.428701 7f60592ffa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:58:08.428703 7f60592ffa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:58:08.428703 7f60592ffa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:58:08.428710 7f60592ffa80 Options.error_if_exists: 0
+2021/03/14-08:58:08.428711 7f60592ffa80 Options.create_if_missing: 1
+2021/03/14-08:58:08.428712 7f60592ffa80 Options.paranoid_checks: 1
+2021/03/14-08:58:08.428712 7f60592ffa80 Options.env: 0x7f6059cb9080
+2021/03/14-08:58:08.428713 7f60592ffa80 Options.info_log: 0x276cca0
+2021/03/14-08:58:08.428714 7f60592ffa80 Options.max_file_opening_threads: 16
+2021/03/14-08:58:08.428714 7f60592ffa80 Options.statistics: (nil)
+2021/03/14-08:58:08.428715 7f60592ffa80 Options.use_fsync: 0
+2021/03/14-08:58:08.428716 7f60592ffa80 Options.max_log_file_size: 0
+2021/03/14-08:58:08.428716 7f60592ffa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:58:08.428717 7f60592ffa80 Options.log_file_time_to_roll: 0
+2021/03/14-08:58:08.428718 7f60592ffa80 Options.keep_log_file_num: 1000
+2021/03/14-08:58:08.428718 7f60592ffa80 Options.recycle_log_file_num: 0
+2021/03/14-08:58:08.428719 7f60592ffa80 Options.allow_fallocate: 1
+2021/03/14-08:58:08.428720 7f60592ffa80 Options.allow_mmap_reads: 0
+2021/03/14-08:58:08.428720 7f60592ffa80 Options.allow_mmap_writes: 0
+2021/03/14-08:58:08.428721 7f60592ffa80 Options.use_direct_reads: 0
+2021/03/14-08:58:08.428722 7f60592ffa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:58:08.428722 7f60592ffa80 Options.create_missing_column_families: 0
+2021/03/14-08:58:08.428723 7f60592ffa80 Options.db_log_dir:
+2021/03/14-08:58:08.428723 7f60592ffa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:58:08.428724 7f60592ffa80 Options.table_cache_numshardbits: 6
+2021/03/14-08:58:08.428725 7f60592ffa80 Options.max_subcompactions: 1
+2021/03/14-08:58:08.428725 7f60592ffa80 Options.max_background_flushes: -1
+2021/03/14-08:58:08.428726 7f60592ffa80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:58:08.428727 7f60592ffa80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:58:08.428727 7f60592ffa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:58:08.428728 7f60592ffa80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:58:08.428728 7f60592ffa80 Options.advise_random_on_open: 1
+2021/03/14-08:58:08.428729 7f60592ffa80 Options.db_write_buffer_size: 0
+2021/03/14-08:58:08.428730 7f60592ffa80 Options.write_buffer_manager: 0x2754b90
+2021/03/14-08:58:08.428730 7f60592ffa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:58:08.428731 7f60592ffa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:58:08.428731 7f60592ffa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:58:08.428732 7f60592ffa80 Options.use_adaptive_mutex: 0
+2021/03/14-08:58:08.428733 7f60592ffa80 Options.rate_limiter: (nil)
+2021/03/14-08:58:08.428734 7f60592ffa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:58:08.428744 7f60592ffa80 Options.wal_recovery_mode: 2
+2021/03/14-08:58:08.428744 7f60592ffa80 Options.enable_thread_tracking: 0
+2021/03/14-08:58:08.428745 7f60592ffa80 Options.enable_pipelined_write: 0
+2021/03/14-08:58:08.428746 7f60592ffa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:58:08.428746 7f60592ffa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:58:08.428747 7f60592ffa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:58:08.428747 7f60592ffa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:58:08.428748 7f60592ffa80 Options.row_cache: None
+2021/03/14-08:58:08.428749 7f60592ffa80 Options.wal_filter: None
+2021/03/14-08:58:08.428749 7f60592ffa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:58:08.428750 7f60592ffa80 Options.allow_ingest_behind: 0
+2021/03/14-08:58:08.428750 7f60592ffa80 Options.preserve_deletes: 0
+2021/03/14-08:58:08.428751 7f60592ffa80 Options.two_write_queues: 0
+2021/03/14-08:58:08.428752 7f60592ffa80 Options.manual_wal_flush: 0
+2021/03/14-08:58:08.428753 7f60592ffa80 Options.max_background_jobs: 16
+2021/03/14-08:58:08.428754 7f60592ffa80 Options.max_background_compactions: -1
+2021/03/14-08:58:08.428754 7f60592ffa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:58:08.428755 7f60592ffa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:58:08.428756 7f60592ffa80 Options.delayed_write_rate : 16777216
+2021/03/14-08:58:08.428756 7f60592ffa80 Options.max_total_wal_size: 0
+2021/03/14-08:58:08.428757 7f60592ffa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:58:08.428758 7f60592ffa80 Options.stats_dump_period_sec: 600
+2021/03/14-08:58:08.428758 7f60592ffa80 Options.max_open_files: -1
+2021/03/14-08:58:08.428759 7f60592ffa80 Options.bytes_per_sync: 0
+2021/03/14-08:58:08.428759 7f60592ffa80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:58:08.428760 7f60592ffa80 Options.compaction_readahead_size: 0
+2021/03/14-08:58:08.428761 7f60592ffa80 Compression algorithms supported:
+2021/03/14-08:58:08.428761 7f60592ffa80 Snappy supported: 1
+2021/03/14-08:58:08.428762 7f60592ffa80 Zlib supported: 1
+2021/03/14-08:58:08.428762 7f60592ffa80 Bzip supported: 1
+2021/03/14-08:58:08.428763 7f60592ffa80 LZ4 supported: 1
+2021/03/14-08:58:08.428764 7f60592ffa80 ZSTDNotFinal supported: 1
+2021/03/14-08:58:08.428769 7f60592ffa80 ZSTD supported: 1
+2021/03/14-08:58:08.428773 7f60592ffa80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:58:08.428774 7f60592ffa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:58:08.428907 7f60592ffa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:58:08.428973 7f60592ffa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:58:08.428975 7f60592ffa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:58:08.428976 7f60592ffa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:58:08.428977 7f60592ffa80 Options.compaction_filter: None
+2021/03/14-08:58:08.428977 7f60592ffa80 Options.compaction_filter_factory: None
+2021/03/14-08:58:08.428978 7f60592ffa80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:58:08.428979 7f60592ffa80 Options.table_factory: BlockBasedTable
+2021/03/14-08:58:08.428998 7f60592ffa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2764520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2749c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:58:08.429004 7f60592ffa80 Options.write_buffer_size: 134217728
+2021/03/14-08:58:08.429005 7f60592ffa80 Options.max_write_buffer_number: 6
+2021/03/14-08:58:08.429006 7f60592ffa80 Options.compression[0]: NoCompression
+2021/03/14-08:58:08.429007 7f60592ffa80 Options.compression[1]: NoCompression
+2021/03/14-08:58:08.429007 7f60592ffa80 Options.compression[2]: Snappy
+2021/03/14-08:58:08.429008 7f60592ffa80 Options.compression[3]: Snappy
+2021/03/14-08:58:08.429009 7f60592ffa80 Options.compression[4]: Snappy
+2021/03/14-08:58:08.429009 7f60592ffa80 Options.compression[5]: Snappy
+2021/03/14-08:58:08.429010 7f60592ffa80 Options.compression[6]: Snappy
+2021/03/14-08:58:08.429011 7f60592ffa80 Options.bottommost_compression: Disabled
+2021/03/14-08:58:08.429012 7f60592ffa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:58:08.429012 7f60592ffa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:58:08.429013 7f60592ffa80 Options.num_levels: 7
+2021/03/14-08:58:08.429013 7f60592ffa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:58:08.429014 7f60592ffa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:58:08.429015 7f60592ffa80 Options.compression_opts.window_bits: -14
+2021/03/14-08:58:08.429015 7f60592ffa80 Options.compression_opts.level: -1
+2021/03/14-08:58:08.429016 7f60592ffa80 Options.compression_opts.strategy: 0
+2021/03/14-08:58:08.429017 7f60592ffa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:58:08.429017 7f60592ffa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:58:08.429018 7f60592ffa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:58:08.429019 7f60592ffa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:58:08.429019 7f60592ffa80 Options.target_file_size_base: 67108864
+2021/03/14-08:58:08.429020 7f60592ffa80 Options.target_file_size_multiplier: 1
+2021/03/14-08:58:08.429021 7f60592ffa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:58:08.429021 7f60592ffa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:58:08.429022 7f60592ffa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:58:08.429024 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:58:08.429032 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:58:08.429033 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:58:08.429033 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:58:08.429034 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:58:08.429035 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:58:08.429035 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:58:08.429036 7f60592ffa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:58:08.429036 7f60592ffa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:58:08.429037 7f60592ffa80 Options.arena_block_size: 16777216
+2021/03/14-08:58:08.429038 7f60592ffa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:58:08.429038 7f60592ffa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:58:08.429039 7f60592ffa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:58:08.429040 7f60592ffa80 Options.disable_auto_compactions: 0
+2021/03/14-08:58:08.429042 7f60592ffa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:58:08.429042 7f60592ffa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:58:08.429043 7f60592ffa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:58:08.429044 7f60592ffa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:58:08.429044 7f60592ffa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:58:08.429045 7f60592ffa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:58:08.429045 7f60592ffa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:58:08.429047 7f60592ffa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:58:08.429047 7f60592ffa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:58:08.429048 7f60592ffa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:58:08.429048 7f60592ffa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:58:08.429049 7f60592ffa80 Options.table_properties_collectors:
+2021/03/14-08:58:08.429050 7f60592ffa80 Options.inplace_update_support: 0
+2021/03/14-08:58:08.429050 7f60592ffa80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:58:08.429051 7f60592ffa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:58:08.429052 7f60592ffa80 Options.memtable_huge_page_size: 0
+2021/03/14-08:58:08.429052 7f60592ffa80 Options.bloom_locality: 0
+2021/03/14-08:58:08.429053 7f60592ffa80 Options.max_successive_merges: 0
+2021/03/14-08:58:08.429054 7f60592ffa80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:58:08.429054 7f60592ffa80 Options.paranoid_file_checks: 0
+2021/03/14-08:58:08.429055 7f60592ffa80 Options.force_consistency_checks: 0
+2021/03/14-08:58:08.429055 7f60592ffa80 Options.report_bg_io_stats: 0
+2021/03/14-08:58:08.429522 7f60592ffa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:58:08.429525 7f60592ffa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:58:08.429727 7f60592ffa80 EVENT_LOG_v1 {"time_micros": 1615708688429713, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:58:08.429735 7f60592ffa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:58:09.135420 7f60592ffa80 EVENT_LOG_v1 {"time_micros": 1615708689135417, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708689862029 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708689862029
new file mode 100644
index 0000000..7c6df82
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708689862029
@@ -0,0 +1,186 @@
+2021/03/14-08:58:09.148138 7f60592ffa80 RocksDB version: 5.11.3
+2021/03/14-08:58:09.148196 7f60592ffa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:58:09.148197 7f60592ffa80 Compile date Mar 13 2021
+2021/03/14-08:58:09.148199 7f60592ffa80 DB SUMMARY
+2021/03/14-08:58:09.148383 7f60592ffa80 CURRENT file: CURRENT
+2021/03/14-08:58:09.148384 7f60592ffa80 IDENTITY file: IDENTITY
+2021/03/14-08:58:09.148402 7f60592ffa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:58:09.148403 7f60592ffa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:58:09.148404 7f60592ffa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:58:09.148410 7f60592ffa80 Options.error_if_exists: 0
+2021/03/14-08:58:09.148411 7f60592ffa80 Options.create_if_missing: 1
+2021/03/14-08:58:09.148412 7f60592ffa80 Options.paranoid_checks: 1
+2021/03/14-08:58:09.148412 7f60592ffa80 Options.env: 0x7f6059cb9080
+2021/03/14-08:58:09.148413 7f60592ffa80 Options.info_log: 0x276cca0
+2021/03/14-08:58:09.148414 7f60592ffa80 Options.max_file_opening_threads: 16
+2021/03/14-08:58:09.148414 7f60592ffa80 Options.statistics: (nil)
+2021/03/14-08:58:09.148415 7f60592ffa80 Options.use_fsync: 0
+2021/03/14-08:58:09.148416 7f60592ffa80 Options.max_log_file_size: 0
+2021/03/14-08:58:09.148416 7f60592ffa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:58:09.148417 7f60592ffa80 Options.log_file_time_to_roll: 0
+2021/03/14-08:58:09.148417 7f60592ffa80 Options.keep_log_file_num: 1000
+2021/03/14-08:58:09.148418 7f60592ffa80 Options.recycle_log_file_num: 0
+2021/03/14-08:58:09.148419 7f60592ffa80 Options.allow_fallocate: 1
+2021/03/14-08:58:09.148419 7f60592ffa80 Options.allow_mmap_reads: 0
+2021/03/14-08:58:09.148420 7f60592ffa80 Options.allow_mmap_writes: 0
+2021/03/14-08:58:09.148420 7f60592ffa80 Options.use_direct_reads: 0
+2021/03/14-08:58:09.148421 7f60592ffa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:58:09.148421 7f60592ffa80 Options.create_missing_column_families: 0
+2021/03/14-08:58:09.148422 7f60592ffa80 Options.db_log_dir:
+2021/03/14-08:58:09.148423 7f60592ffa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:58:09.148423 7f60592ffa80 Options.table_cache_numshardbits: 6
+2021/03/14-08:58:09.148424 7f60592ffa80 Options.max_subcompactions: 1
+2021/03/14-08:58:09.148424 7f60592ffa80 Options.max_background_flushes: -1
+2021/03/14-08:58:09.148425 7f60592ffa80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:58:09.148426 7f60592ffa80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:58:09.148426 7f60592ffa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:58:09.148427 7f60592ffa80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:58:09.148427 7f60592ffa80 Options.advise_random_on_open: 1
+2021/03/14-08:58:09.148428 7f60592ffa80 Options.db_write_buffer_size: 0
+2021/03/14-08:58:09.148428 7f60592ffa80 Options.write_buffer_manager: 0x2754b90
+2021/03/14-08:58:09.148429 7f60592ffa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:58:09.148430 7f60592ffa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:58:09.148430 7f60592ffa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:58:09.148431 7f60592ffa80 Options.use_adaptive_mutex: 0
+2021/03/14-08:58:09.148431 7f60592ffa80 Options.rate_limiter: (nil)
+2021/03/14-08:58:09.148433 7f60592ffa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:58:09.148441 7f60592ffa80 Options.wal_recovery_mode: 2
+2021/03/14-08:58:09.148442 7f60592ffa80 Options.enable_thread_tracking: 0
+2021/03/14-08:58:09.148442 7f60592ffa80 Options.enable_pipelined_write: 0
+2021/03/14-08:58:09.148443 7f60592ffa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:58:09.148443 7f60592ffa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:58:09.148444 7f60592ffa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:58:09.148445 7f60592ffa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:58:09.148445 7f60592ffa80 Options.row_cache: None
+2021/03/14-08:58:09.148446 7f60592ffa80 Options.wal_filter: None
+2021/03/14-08:58:09.148446 7f60592ffa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:58:09.148447 7f60592ffa80 Options.allow_ingest_behind: 0
+2021/03/14-08:58:09.148448 7f60592ffa80 Options.preserve_deletes: 0
+2021/03/14-08:58:09.148448 7f60592ffa80 Options.two_write_queues: 0
+2021/03/14-08:58:09.148449 7f60592ffa80 Options.manual_wal_flush: 0
+2021/03/14-08:58:09.148450 7f60592ffa80 Options.max_background_jobs: 16
+2021/03/14-08:58:09.148451 7f60592ffa80 Options.max_background_compactions: -1
+2021/03/14-08:58:09.148451 7f60592ffa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:58:09.148452 7f60592ffa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:58:09.148452 7f60592ffa80 Options.delayed_write_rate : 16777216
+2021/03/14-08:58:09.148453 7f60592ffa80 Options.max_total_wal_size: 0
+2021/03/14-08:58:09.148454 7f60592ffa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:58:09.148454 7f60592ffa80 Options.stats_dump_period_sec: 600
+2021/03/14-08:58:09.148455 7f60592ffa80 Options.max_open_files: -1
+2021/03/14-08:58:09.148455 7f60592ffa80 Options.bytes_per_sync: 0
+2021/03/14-08:58:09.148456 7f60592ffa80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:58:09.148456 7f60592ffa80 Options.compaction_readahead_size: 0
+2021/03/14-08:58:09.148457 7f60592ffa80 Compression algorithms supported:
+2021/03/14-08:58:09.148458 7f60592ffa80 Snappy supported: 1
+2021/03/14-08:58:09.148458 7f60592ffa80 Zlib supported: 1
+2021/03/14-08:58:09.148459 7f60592ffa80 Bzip supported: 1
+2021/03/14-08:58:09.148459 7f60592ffa80 LZ4 supported: 1
+2021/03/14-08:58:09.148460 7f60592ffa80 ZSTDNotFinal supported: 1
+2021/03/14-08:58:09.148464 7f60592ffa80 ZSTD supported: 1
+2021/03/14-08:58:09.148467 7f60592ffa80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:58:09.148468 7f60592ffa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:58:09.148560 7f60592ffa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:58:09.148614 7f60592ffa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:58:09.148615 7f60592ffa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:58:09.148616 7f60592ffa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:58:09.148617 7f60592ffa80 Options.compaction_filter: None
+2021/03/14-08:58:09.148617 7f60592ffa80 Options.compaction_filter_factory: None
+2021/03/14-08:58:09.148618 7f60592ffa80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:58:09.148619 7f60592ffa80 Options.table_factory: BlockBasedTable
+2021/03/14-08:58:09.148635 7f60592ffa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2764520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2749c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:58:09.148641 7f60592ffa80 Options.write_buffer_size: 134217728
+2021/03/14-08:58:09.148642 7f60592ffa80 Options.max_write_buffer_number: 6
+2021/03/14-08:58:09.148642 7f60592ffa80 Options.compression[0]: NoCompression
+2021/03/14-08:58:09.148643 7f60592ffa80 Options.compression[1]: NoCompression
+2021/03/14-08:58:09.148644 7f60592ffa80 Options.compression[2]: Snappy
+2021/03/14-08:58:09.148644 7f60592ffa80 Options.compression[3]: Snappy
+2021/03/14-08:58:09.148645 7f60592ffa80 Options.compression[4]: Snappy
+2021/03/14-08:58:09.148646 7f60592ffa80 Options.compression[5]: Snappy
+2021/03/14-08:58:09.148646 7f60592ffa80 Options.compression[6]: Snappy
+2021/03/14-08:58:09.148647 7f60592ffa80 Options.bottommost_compression: Disabled
+2021/03/14-08:58:09.148648 7f60592ffa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:58:09.148648 7f60592ffa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:58:09.148649 7f60592ffa80 Options.num_levels: 7
+2021/03/14-08:58:09.148649 7f60592ffa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:58:09.148650 7f60592ffa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:58:09.148651 7f60592ffa80 Options.compression_opts.window_bits: -14
+2021/03/14-08:58:09.148651 7f60592ffa80 Options.compression_opts.level: -1
+2021/03/14-08:58:09.148652 7f60592ffa80 Options.compression_opts.strategy: 0
+2021/03/14-08:58:09.148652 7f60592ffa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:58:09.148653 7f60592ffa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:58:09.148654 7f60592ffa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:58:09.148654 7f60592ffa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:58:09.148655 7f60592ffa80 Options.target_file_size_base: 67108864
+2021/03/14-08:58:09.148655 7f60592ffa80 Options.target_file_size_multiplier: 1
+2021/03/14-08:58:09.148656 7f60592ffa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:58:09.148657 7f60592ffa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:58:09.148657 7f60592ffa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:58:09.148659 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:58:09.148667 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:58:09.148667 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:58:09.148668 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:58:09.148668 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:58:09.148669 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:58:09.148670 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:58:09.148670 7f60592ffa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:58:09.148671 7f60592ffa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:58:09.148671 7f60592ffa80 Options.arena_block_size: 16777216
+2021/03/14-08:58:09.148672 7f60592ffa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:58:09.148673 7f60592ffa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:58:09.148673 7f60592ffa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:58:09.148674 7f60592ffa80 Options.disable_auto_compactions: 0
+2021/03/14-08:58:09.148675 7f60592ffa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:58:09.148676 7f60592ffa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:58:09.148677 7f60592ffa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:58:09.148677 7f60592ffa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:58:09.148678 7f60592ffa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:58:09.148678 7f60592ffa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:58:09.148679 7f60592ffa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:58:09.148680 7f60592ffa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:58:09.148681 7f60592ffa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:58:09.148681 7f60592ffa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:58:09.148682 7f60592ffa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:58:09.148682 7f60592ffa80 Options.table_properties_collectors:
+2021/03/14-08:58:09.148683 7f60592ffa80 Options.inplace_update_support: 0
+2021/03/14-08:58:09.148683 7f60592ffa80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:58:09.148684 7f60592ffa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:58:09.148685 7f60592ffa80 Options.memtable_huge_page_size: 0
+2021/03/14-08:58:09.148686 7f60592ffa80 Options.bloom_locality: 0
+2021/03/14-08:58:09.148686 7f60592ffa80 Options.max_successive_merges: 0
+2021/03/14-08:58:09.148687 7f60592ffa80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:58:09.148687 7f60592ffa80 Options.paranoid_file_checks: 0
+2021/03/14-08:58:09.148688 7f60592ffa80 Options.force_consistency_checks: 0
+2021/03/14-08:58:09.148688 7f60592ffa80 Options.report_bg_io_stats: 0
+2021/03/14-08:58:09.149081 7f60592ffa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:58:09.149084 7f60592ffa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:58:09.149270 7f60592ffa80 EVENT_LOG_v1 {"time_micros": 1615708689149259, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:58:09.149276 7f60592ffa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:58:09.849564 7f60592ffa80 EVENT_LOG_v1 {"time_micros": 1615708689849560, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708690571546 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708690571546
new file mode 100644
index 0000000..36b41ae
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708690571546
@@ -0,0 +1,186 @@
+2021/03/14-08:58:09.862458 7f60592ffa80 RocksDB version: 5.11.3
+2021/03/14-08:58:09.862516 7f60592ffa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:58:09.862517 7f60592ffa80 Compile date Mar 13 2021
+2021/03/14-08:58:09.862520 7f60592ffa80 DB SUMMARY
+2021/03/14-08:58:09.862701 7f60592ffa80 CURRENT file: CURRENT
+2021/03/14-08:58:09.862703 7f60592ffa80 IDENTITY file: IDENTITY
+2021/03/14-08:58:09.862720 7f60592ffa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:58:09.862721 7f60592ffa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:58:09.862722 7f60592ffa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:58:09.862730 7f60592ffa80 Options.error_if_exists: 0
+2021/03/14-08:58:09.862732 7f60592ffa80 Options.create_if_missing: 1
+2021/03/14-08:58:09.862733 7f60592ffa80 Options.paranoid_checks: 1
+2021/03/14-08:58:09.862733 7f60592ffa80 Options.env: 0x7f6059cb9080
+2021/03/14-08:58:09.862734 7f60592ffa80 Options.info_log: 0x276cca0
+2021/03/14-08:58:09.862735 7f60592ffa80 Options.max_file_opening_threads: 16
+2021/03/14-08:58:09.862735 7f60592ffa80 Options.statistics: (nil)
+2021/03/14-08:58:09.862736 7f60592ffa80 Options.use_fsync: 0
+2021/03/14-08:58:09.862736 7f60592ffa80 Options.max_log_file_size: 0
+2021/03/14-08:58:09.862737 7f60592ffa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:58:09.862738 7f60592ffa80 Options.log_file_time_to_roll: 0
+2021/03/14-08:58:09.862738 7f60592ffa80 Options.keep_log_file_num: 1000
+2021/03/14-08:58:09.862739 7f60592ffa80 Options.recycle_log_file_num: 0
+2021/03/14-08:58:09.862740 7f60592ffa80 Options.allow_fallocate: 1
+2021/03/14-08:58:09.862740 7f60592ffa80 Options.allow_mmap_reads: 0
+2021/03/14-08:58:09.862741 7f60592ffa80 Options.allow_mmap_writes: 0
+2021/03/14-08:58:09.862741 7f60592ffa80 Options.use_direct_reads: 0
+2021/03/14-08:58:09.862742 7f60592ffa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:58:09.862742 7f60592ffa80 Options.create_missing_column_families: 0
+2021/03/14-08:58:09.862743 7f60592ffa80 Options.db_log_dir:
+2021/03/14-08:58:09.862744 7f60592ffa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:58:09.862744 7f60592ffa80 Options.table_cache_numshardbits: 6
+2021/03/14-08:58:09.862745 7f60592ffa80 Options.max_subcompactions: 1
+2021/03/14-08:58:09.862745 7f60592ffa80 Options.max_background_flushes: -1
+2021/03/14-08:58:09.862746 7f60592ffa80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:58:09.862746 7f60592ffa80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:58:09.862747 7f60592ffa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:58:09.862748 7f60592ffa80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:58:09.862748 7f60592ffa80 Options.advise_random_on_open: 1
+2021/03/14-08:58:09.862749 7f60592ffa80 Options.db_write_buffer_size: 0
+2021/03/14-08:58:09.862749 7f60592ffa80 Options.write_buffer_manager: 0x2754b90
+2021/03/14-08:58:09.862750 7f60592ffa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:58:09.862751 7f60592ffa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:58:09.862751 7f60592ffa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:58:09.862752 7f60592ffa80 Options.use_adaptive_mutex: 0
+2021/03/14-08:58:09.862752 7f60592ffa80 Options.rate_limiter: (nil)
+2021/03/14-08:58:09.862754 7f60592ffa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:58:09.862761 7f60592ffa80 Options.wal_recovery_mode: 2
+2021/03/14-08:58:09.862762 7f60592ffa80 Options.enable_thread_tracking: 0
+2021/03/14-08:58:09.862763 7f60592ffa80 Options.enable_pipelined_write: 0
+2021/03/14-08:58:09.862763 7f60592ffa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:58:09.862764 7f60592ffa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:58:09.862765 7f60592ffa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:58:09.862765 7f60592ffa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:58:09.862766 7f60592ffa80 Options.row_cache: None
+2021/03/14-08:58:09.862766 7f60592ffa80 Options.wal_filter: None
+2021/03/14-08:58:09.862767 7f60592ffa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:58:09.862768 7f60592ffa80 Options.allow_ingest_behind: 0
+2021/03/14-08:58:09.862768 7f60592ffa80 Options.preserve_deletes: 0
+2021/03/14-08:58:09.862769 7f60592ffa80 Options.two_write_queues: 0
+2021/03/14-08:58:09.862769 7f60592ffa80 Options.manual_wal_flush: 0
+2021/03/14-08:58:09.862770 7f60592ffa80 Options.max_background_jobs: 16
+2021/03/14-08:58:09.862771 7f60592ffa80 Options.max_background_compactions: -1
+2021/03/14-08:58:09.862772 7f60592ffa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:58:09.862772 7f60592ffa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:58:09.862773 7f60592ffa80 Options.delayed_write_rate : 16777216
+2021/03/14-08:58:09.862773 7f60592ffa80 Options.max_total_wal_size: 0
+2021/03/14-08:58:09.862774 7f60592ffa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:58:09.862775 7f60592ffa80 Options.stats_dump_period_sec: 600
+2021/03/14-08:58:09.862775 7f60592ffa80 Options.max_open_files: -1
+2021/03/14-08:58:09.862776 7f60592ffa80 Options.bytes_per_sync: 0
+2021/03/14-08:58:09.862776 7f60592ffa80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:58:09.862777 7f60592ffa80 Options.compaction_readahead_size: 0
+2021/03/14-08:58:09.862778 7f60592ffa80 Compression algorithms supported:
+2021/03/14-08:58:09.862778 7f60592ffa80 Snappy supported: 1
+2021/03/14-08:58:09.862779 7f60592ffa80 Zlib supported: 1
+2021/03/14-08:58:09.862779 7f60592ffa80 Bzip supported: 1
+2021/03/14-08:58:09.862780 7f60592ffa80 LZ4 supported: 1
+2021/03/14-08:58:09.862780 7f60592ffa80 ZSTDNotFinal supported: 1
+2021/03/14-08:58:09.862784 7f60592ffa80 ZSTD supported: 1
+2021/03/14-08:58:09.862787 7f60592ffa80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:58:09.862788 7f60592ffa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:58:09.862881 7f60592ffa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:58:09.862933 7f60592ffa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:58:09.862935 7f60592ffa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:58:09.862936 7f60592ffa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:58:09.862936 7f60592ffa80 Options.compaction_filter: None
+2021/03/14-08:58:09.862937 7f60592ffa80 Options.compaction_filter_factory: None
+2021/03/14-08:58:09.862938 7f60592ffa80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:58:09.862938 7f60592ffa80 Options.table_factory: BlockBasedTable
+2021/03/14-08:58:09.862955 7f60592ffa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2764520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2749c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:58:09.862960 7f60592ffa80 Options.write_buffer_size: 134217728
+2021/03/14-08:58:09.862961 7f60592ffa80 Options.max_write_buffer_number: 6
+2021/03/14-08:58:09.862962 7f60592ffa80 Options.compression[0]: NoCompression
+2021/03/14-08:58:09.862962 7f60592ffa80 Options.compression[1]: NoCompression
+2021/03/14-08:58:09.862963 7f60592ffa80 Options.compression[2]: Snappy
+2021/03/14-08:58:09.862964 7f60592ffa80 Options.compression[3]: Snappy
+2021/03/14-08:58:09.862964 7f60592ffa80 Options.compression[4]: Snappy
+2021/03/14-08:58:09.862965 7f60592ffa80 Options.compression[5]: Snappy
+2021/03/14-08:58:09.862966 7f60592ffa80 Options.compression[6]: Snappy
+2021/03/14-08:58:09.862966 7f60592ffa80 Options.bottommost_compression: Disabled
+2021/03/14-08:58:09.862967 7f60592ffa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:58:09.862968 7f60592ffa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:58:09.862968 7f60592ffa80 Options.num_levels: 7
+2021/03/14-08:58:09.862969 7f60592ffa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:58:09.862969 7f60592ffa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:58:09.862970 7f60592ffa80 Options.compression_opts.window_bits: -14
+2021/03/14-08:58:09.862971 7f60592ffa80 Options.compression_opts.level: -1
+2021/03/14-08:58:09.862971 7f60592ffa80 Options.compression_opts.strategy: 0
+2021/03/14-08:58:09.862972 7f60592ffa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:58:09.862972 7f60592ffa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:58:09.862973 7f60592ffa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:58:09.862973 7f60592ffa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:58:09.862974 7f60592ffa80 Options.target_file_size_base: 67108864
+2021/03/14-08:58:09.862975 7f60592ffa80 Options.target_file_size_multiplier: 1
+2021/03/14-08:58:09.862975 7f60592ffa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:58:09.862976 7f60592ffa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:58:09.862976 7f60592ffa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:58:09.862978 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:58:09.862986 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:58:09.862987 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:58:09.862987 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:58:09.862988 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:58:09.862988 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:58:09.862989 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:58:09.862989 7f60592ffa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:58:09.862990 7f60592ffa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:58:09.862991 7f60592ffa80 Options.arena_block_size: 16777216
+2021/03/14-08:58:09.862991 7f60592ffa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:58:09.862992 7f60592ffa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:58:09.862992 7f60592ffa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:58:09.862993 7f60592ffa80 Options.disable_auto_compactions: 0
+2021/03/14-08:58:09.862995 7f60592ffa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:58:09.862995 7f60592ffa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:58:09.862996 7f60592ffa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:58:09.862997 7f60592ffa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:58:09.862997 7f60592ffa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:58:09.862998 7f60592ffa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:58:09.862998 7f60592ffa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:58:09.862999 7f60592ffa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:58:09.863000 7f60592ffa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:58:09.863001 7f60592ffa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:58:09.863001 7f60592ffa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:58:09.863002 7f60592ffa80 Options.table_properties_collectors:
+2021/03/14-08:58:09.863002 7f60592ffa80 Options.inplace_update_support: 0
+2021/03/14-08:58:09.863003 7f60592ffa80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:58:09.863004 7f60592ffa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:58:09.863004 7f60592ffa80 Options.memtable_huge_page_size: 0
+2021/03/14-08:58:09.863005 7f60592ffa80 Options.bloom_locality: 0
+2021/03/14-08:58:09.863006 7f60592ffa80 Options.max_successive_merges: 0
+2021/03/14-08:58:09.863006 7f60592ffa80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:58:09.863007 7f60592ffa80 Options.paranoid_file_checks: 0
+2021/03/14-08:58:09.863007 7f60592ffa80 Options.force_consistency_checks: 0
+2021/03/14-08:58:09.863008 7f60592ffa80 Options.report_bg_io_stats: 0
+2021/03/14-08:58:09.863379 7f60592ffa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:58:09.863381 7f60592ffa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:58:09.863554 7f60592ffa80 EVENT_LOG_v1 {"time_micros": 1615708689863543, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:58:09.863559 7f60592ffa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:58:10.559475 7f60592ffa80 EVENT_LOG_v1 {"time_micros": 1615708690559472, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708743974186 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708743974186
new file mode 100644
index 0000000..3d6d5ed
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708743974186
@@ -0,0 +1,186 @@
+2021/03/14-08:58:10.571966 7f60592ffa80 RocksDB version: 5.11.3
+2021/03/14-08:58:10.572023 7f60592ffa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:58:10.572024 7f60592ffa80 Compile date Mar 13 2021
+2021/03/14-08:58:10.572027 7f60592ffa80 DB SUMMARY
+2021/03/14-08:58:10.572207 7f60592ffa80 CURRENT file: CURRENT
+2021/03/14-08:58:10.572208 7f60592ffa80 IDENTITY file: IDENTITY
+2021/03/14-08:58:10.572226 7f60592ffa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:58:10.572227 7f60592ffa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:58:10.572228 7f60592ffa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:58:10.572234 7f60592ffa80 Options.error_if_exists: 0
+2021/03/14-08:58:10.572235 7f60592ffa80 Options.create_if_missing: 1
+2021/03/14-08:58:10.572235 7f60592ffa80 Options.paranoid_checks: 1
+2021/03/14-08:58:10.572236 7f60592ffa80 Options.env: 0x7f6059cb9080
+2021/03/14-08:58:10.572236 7f60592ffa80 Options.info_log: 0x276cca0
+2021/03/14-08:58:10.572237 7f60592ffa80 Options.max_file_opening_threads: 16
+2021/03/14-08:58:10.572244 7f60592ffa80 Options.statistics: (nil)
+2021/03/14-08:58:10.572245 7f60592ffa80 Options.use_fsync: 0
+2021/03/14-08:58:10.572245 7f60592ffa80 Options.max_log_file_size: 0
+2021/03/14-08:58:10.572246 7f60592ffa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:58:10.572247 7f60592ffa80 Options.log_file_time_to_roll: 0
+2021/03/14-08:58:10.572247 7f60592ffa80 Options.keep_log_file_num: 1000
+2021/03/14-08:58:10.572248 7f60592ffa80 Options.recycle_log_file_num: 0
+2021/03/14-08:58:10.572249 7f60592ffa80 Options.allow_fallocate: 1
+2021/03/14-08:58:10.572249 7f60592ffa80 Options.allow_mmap_reads: 0
+2021/03/14-08:58:10.572250 7f60592ffa80 Options.allow_mmap_writes: 0
+2021/03/14-08:58:10.572250 7f60592ffa80 Options.use_direct_reads: 0
+2021/03/14-08:58:10.572251 7f60592ffa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:58:10.572251 7f60592ffa80 Options.create_missing_column_families: 0
+2021/03/14-08:58:10.572252 7f60592ffa80 Options.db_log_dir:
+2021/03/14-08:58:10.572252 7f60592ffa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:58:10.572253 7f60592ffa80 Options.table_cache_numshardbits: 6
+2021/03/14-08:58:10.572254 7f60592ffa80 Options.max_subcompactions: 1
+2021/03/14-08:58:10.572254 7f60592ffa80 Options.max_background_flushes: -1
+2021/03/14-08:58:10.572255 7f60592ffa80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:58:10.572255 7f60592ffa80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:58:10.572256 7f60592ffa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:58:10.572257 7f60592ffa80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:58:10.572257 7f60592ffa80 Options.advise_random_on_open: 1
+2021/03/14-08:58:10.572258 7f60592ffa80 Options.db_write_buffer_size: 0
+2021/03/14-08:58:10.572258 7f60592ffa80 Options.write_buffer_manager: 0x2754b90
+2021/03/14-08:58:10.572259 7f60592ffa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:58:10.572259 7f60592ffa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:58:10.572260 7f60592ffa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:58:10.572260 7f60592ffa80 Options.use_adaptive_mutex: 0
+2021/03/14-08:58:10.572261 7f60592ffa80 Options.rate_limiter: (nil)
+2021/03/14-08:58:10.572262 7f60592ffa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:58:10.572271 7f60592ffa80 Options.wal_recovery_mode: 2
+2021/03/14-08:58:10.572272 7f60592ffa80 Options.enable_thread_tracking: 0
+2021/03/14-08:58:10.572272 7f60592ffa80 Options.enable_pipelined_write: 0
+2021/03/14-08:58:10.572273 7f60592ffa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:58:10.572273 7f60592ffa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:58:10.572274 7f60592ffa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:58:10.572275 7f60592ffa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:58:10.572275 7f60592ffa80 Options.row_cache: None
+2021/03/14-08:58:10.572276 7f60592ffa80 Options.wal_filter: None
+2021/03/14-08:58:10.572276 7f60592ffa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:58:10.572277 7f60592ffa80 Options.allow_ingest_behind: 0
+2021/03/14-08:58:10.572277 7f60592ffa80 Options.preserve_deletes: 0
+2021/03/14-08:58:10.572278 7f60592ffa80 Options.two_write_queues: 0
+2021/03/14-08:58:10.572278 7f60592ffa80 Options.manual_wal_flush: 0
+2021/03/14-08:58:10.572280 7f60592ffa80 Options.max_background_jobs: 16
+2021/03/14-08:58:10.572280 7f60592ffa80 Options.max_background_compactions: -1
+2021/03/14-08:58:10.572281 7f60592ffa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:58:10.572281 7f60592ffa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:58:10.572282 7f60592ffa80 Options.delayed_write_rate : 16777216
+2021/03/14-08:58:10.572283 7f60592ffa80 Options.max_total_wal_size: 0
+2021/03/14-08:58:10.572283 7f60592ffa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:58:10.572284 7f60592ffa80 Options.stats_dump_period_sec: 600
+2021/03/14-08:58:10.572284 7f60592ffa80 Options.max_open_files: -1
+2021/03/14-08:58:10.572285 7f60592ffa80 Options.bytes_per_sync: 0
+2021/03/14-08:58:10.572285 7f60592ffa80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:58:10.572286 7f60592ffa80 Options.compaction_readahead_size: 0
+2021/03/14-08:58:10.572287 7f60592ffa80 Compression algorithms supported:
+2021/03/14-08:58:10.572287 7f60592ffa80 Snappy supported: 1
+2021/03/14-08:58:10.572288 7f60592ffa80 Zlib supported: 1
+2021/03/14-08:58:10.572288 7f60592ffa80 Bzip supported: 1
+2021/03/14-08:58:10.572289 7f60592ffa80 LZ4 supported: 1
+2021/03/14-08:58:10.572289 7f60592ffa80 ZSTDNotFinal supported: 1
+2021/03/14-08:58:10.572293 7f60592ffa80 ZSTD supported: 1
+2021/03/14-08:58:10.572297 7f60592ffa80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:58:10.572298 7f60592ffa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:58:10.572393 7f60592ffa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:58:10.572445 7f60592ffa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:58:10.572447 7f60592ffa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:58:10.572448 7f60592ffa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:58:10.572448 7f60592ffa80 Options.compaction_filter: None
+2021/03/14-08:58:10.572449 7f60592ffa80 Options.compaction_filter_factory: None
+2021/03/14-08:58:10.572449 7f60592ffa80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:58:10.572450 7f60592ffa80 Options.table_factory: BlockBasedTable
+2021/03/14-08:58:10.572467 7f60592ffa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x2764520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2749c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:58:10.572472 7f60592ffa80 Options.write_buffer_size: 134217728
+2021/03/14-08:58:10.572473 7f60592ffa80 Options.max_write_buffer_number: 6
+2021/03/14-08:58:10.572474 7f60592ffa80 Options.compression[0]: NoCompression
+2021/03/14-08:58:10.572474 7f60592ffa80 Options.compression[1]: NoCompression
+2021/03/14-08:58:10.572475 7f60592ffa80 Options.compression[2]: Snappy
+2021/03/14-08:58:10.572476 7f60592ffa80 Options.compression[3]: Snappy
+2021/03/14-08:58:10.572476 7f60592ffa80 Options.compression[4]: Snappy
+2021/03/14-08:58:10.572477 7f60592ffa80 Options.compression[5]: Snappy
+2021/03/14-08:58:10.572477 7f60592ffa80 Options.compression[6]: Snappy
+2021/03/14-08:58:10.572478 7f60592ffa80 Options.bottommost_compression: Disabled
+2021/03/14-08:58:10.572479 7f60592ffa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:58:10.572479 7f60592ffa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:58:10.572480 7f60592ffa80 Options.num_levels: 7
+2021/03/14-08:58:10.572480 7f60592ffa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:58:10.572481 7f60592ffa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:58:10.572481 7f60592ffa80 Options.compression_opts.window_bits: -14
+2021/03/14-08:58:10.572482 7f60592ffa80 Options.compression_opts.level: -1
+2021/03/14-08:58:10.572483 7f60592ffa80 Options.compression_opts.strategy: 0
+2021/03/14-08:58:10.572483 7f60592ffa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:58:10.572484 7f60592ffa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:58:10.572484 7f60592ffa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:58:10.572485 7f60592ffa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:58:10.572485 7f60592ffa80 Options.target_file_size_base: 67108864
+2021/03/14-08:58:10.572486 7f60592ffa80 Options.target_file_size_multiplier: 1
+2021/03/14-08:58:10.572487 7f60592ffa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:58:10.572487 7f60592ffa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:58:10.572488 7f60592ffa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:58:10.572489 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:58:10.572497 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:58:10.572498 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:58:10.572498 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:58:10.572499 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:58:10.572500 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:58:10.572500 7f60592ffa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:58:10.572501 7f60592ffa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:58:10.572501 7f60592ffa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:58:10.572502 7f60592ffa80 Options.arena_block_size: 16777216
+2021/03/14-08:58:10.572502 7f60592ffa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:58:10.572503 7f60592ffa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:58:10.572504 7f60592ffa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:58:10.572504 7f60592ffa80 Options.disable_auto_compactions: 0
+2021/03/14-08:58:10.572506 7f60592ffa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:58:10.572506 7f60592ffa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:58:10.572507 7f60592ffa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:58:10.572508 7f60592ffa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:58:10.572508 7f60592ffa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:58:10.572509 7f60592ffa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:58:10.572509 7f60592ffa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:58:10.572510 7f60592ffa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:58:10.572511 7f60592ffa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:58:10.572511 7f60592ffa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:58:10.572512 7f60592ffa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:58:10.572512 7f60592ffa80 Options.table_properties_collectors:
+2021/03/14-08:58:10.572513 7f60592ffa80 Options.inplace_update_support: 0
+2021/03/14-08:58:10.572514 7f60592ffa80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:58:10.572514 7f60592ffa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:58:10.572515 7f60592ffa80 Options.memtable_huge_page_size: 0
+2021/03/14-08:58:10.572516 7f60592ffa80 Options.bloom_locality: 0
+2021/03/14-08:58:10.572516 7f60592ffa80 Options.max_successive_merges: 0
+2021/03/14-08:58:10.572517 7f60592ffa80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:58:10.572517 7f60592ffa80 Options.paranoid_file_checks: 0
+2021/03/14-08:58:10.572518 7f60592ffa80 Options.force_consistency_checks: 0
+2021/03/14-08:58:10.572518 7f60592ffa80 Options.report_bg_io_stats: 0
+2021/03/14-08:58:10.572884 7f60592ffa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:58:10.572887 7f60592ffa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:58:10.573065 7f60592ffa80 EVENT_LOG_v1 {"time_micros": 1615708690573055, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:58:10.573070 7f60592ffa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:58:11.269424 7f60592ffa80 EVENT_LOG_v1 {"time_micros": 1615708691269420, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708744716035 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708744716035
new file mode 100644
index 0000000..6ad18a5
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708744716035
@@ -0,0 +1,186 @@
+2021/03/14-08:59:03.974754 7f59968dda80 RocksDB version: 5.11.3
+2021/03/14-08:59:03.974828 7f59968dda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:59:03.974830 7f59968dda80 Compile date Mar 13 2021
+2021/03/14-08:59:03.974834 7f59968dda80 DB SUMMARY
+2021/03/14-08:59:03.975046 7f59968dda80 CURRENT file: CURRENT
+2021/03/14-08:59:03.975047 7f59968dda80 IDENTITY file: IDENTITY
+2021/03/14-08:59:03.975068 7f59968dda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:59:03.975070 7f59968dda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:59:03.975071 7f59968dda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:59:03.975078 7f59968dda80 Options.error_if_exists: 0
+2021/03/14-08:59:03.975079 7f59968dda80 Options.create_if_missing: 1
+2021/03/14-08:59:03.975080 7f59968dda80 Options.paranoid_checks: 1
+2021/03/14-08:59:03.975081 7f59968dda80 Options.env: 0x7f5997297080
+2021/03/14-08:59:03.975081 7f59968dda80 Options.info_log: 0x2432c90
+2021/03/14-08:59:03.975082 7f59968dda80 Options.max_file_opening_threads: 16
+2021/03/14-08:59:03.975083 7f59968dda80 Options.statistics: (nil)
+2021/03/14-08:59:03.975084 7f59968dda80 Options.use_fsync: 0
+2021/03/14-08:59:03.975084 7f59968dda80 Options.max_log_file_size: 0
+2021/03/14-08:59:03.975085 7f59968dda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:59:03.975086 7f59968dda80 Options.log_file_time_to_roll: 0
+2021/03/14-08:59:03.975086 7f59968dda80 Options.keep_log_file_num: 1000
+2021/03/14-08:59:03.975087 7f59968dda80 Options.recycle_log_file_num: 0
+2021/03/14-08:59:03.975088 7f59968dda80 Options.allow_fallocate: 1
+2021/03/14-08:59:03.975089 7f59968dda80 Options.allow_mmap_reads: 0
+2021/03/14-08:59:03.975089 7f59968dda80 Options.allow_mmap_writes: 0
+2021/03/14-08:59:03.975090 7f59968dda80 Options.use_direct_reads: 0
+2021/03/14-08:59:03.975091 7f59968dda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:59:03.975091 7f59968dda80 Options.create_missing_column_families: 0
+2021/03/14-08:59:03.975092 7f59968dda80 Options.db_log_dir:
+2021/03/14-08:59:03.975093 7f59968dda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:59:03.975093 7f59968dda80 Options.table_cache_numshardbits: 6
+2021/03/14-08:59:03.975094 7f59968dda80 Options.max_subcompactions: 1
+2021/03/14-08:59:03.975095 7f59968dda80 Options.max_background_flushes: -1
+2021/03/14-08:59:03.975096 7f59968dda80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:59:03.975096 7f59968dda80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:59:03.975097 7f59968dda80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:59:03.975098 7f59968dda80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:59:03.975098 7f59968dda80 Options.advise_random_on_open: 1
+2021/03/14-08:59:03.975099 7f59968dda80 Options.db_write_buffer_size: 0
+2021/03/14-08:59:03.975099 7f59968dda80 Options.write_buffer_manager: 0x241ab90
+2021/03/14-08:59:03.975100 7f59968dda80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:59:03.975101 7f59968dda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:59:03.975101 7f59968dda80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:59:03.975102 7f59968dda80 Options.use_adaptive_mutex: 0
+2021/03/14-08:59:03.975103 7f59968dda80 Options.rate_limiter: (nil)
+2021/03/14-08:59:03.975105 7f59968dda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:59:03.975114 7f59968dda80 Options.wal_recovery_mode: 2
+2021/03/14-08:59:03.975115 7f59968dda80 Options.enable_thread_tracking: 0
+2021/03/14-08:59:03.975116 7f59968dda80 Options.enable_pipelined_write: 0
+2021/03/14-08:59:03.975117 7f59968dda80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:59:03.975117 7f59968dda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:59:03.975118 7f59968dda80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:59:03.975119 7f59968dda80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:59:03.975120 7f59968dda80 Options.row_cache: None
+2021/03/14-08:59:03.975120 7f59968dda80 Options.wal_filter: None
+2021/03/14-08:59:03.975121 7f59968dda80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:59:03.975122 7f59968dda80 Options.allow_ingest_behind: 0
+2021/03/14-08:59:03.975122 7f59968dda80 Options.preserve_deletes: 0
+2021/03/14-08:59:03.975123 7f59968dda80 Options.two_write_queues: 0
+2021/03/14-08:59:03.975124 7f59968dda80 Options.manual_wal_flush: 0
+2021/03/14-08:59:03.975125 7f59968dda80 Options.max_background_jobs: 16
+2021/03/14-08:59:03.975126 7f59968dda80 Options.max_background_compactions: -1
+2021/03/14-08:59:03.975127 7f59968dda80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:59:03.975127 7f59968dda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:59:03.975128 7f59968dda80 Options.delayed_write_rate : 16777216
+2021/03/14-08:59:03.975129 7f59968dda80 Options.max_total_wal_size: 0
+2021/03/14-08:59:03.975129 7f59968dda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:59:03.975130 7f59968dda80 Options.stats_dump_period_sec: 600
+2021/03/14-08:59:03.975131 7f59968dda80 Options.max_open_files: -1
+2021/03/14-08:59:03.975132 7f59968dda80 Options.bytes_per_sync: 0
+2021/03/14-08:59:03.975132 7f59968dda80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:59:03.975133 7f59968dda80 Options.compaction_readahead_size: 0
+2021/03/14-08:59:03.975134 7f59968dda80 Compression algorithms supported:
+2021/03/14-08:59:03.975134 7f59968dda80 Snappy supported: 1
+2021/03/14-08:59:03.975135 7f59968dda80 Zlib supported: 1
+2021/03/14-08:59:03.975136 7f59968dda80 Bzip supported: 1
+2021/03/14-08:59:03.975136 7f59968dda80 LZ4 supported: 1
+2021/03/14-08:59:03.975137 7f59968dda80 ZSTDNotFinal supported: 1
+2021/03/14-08:59:03.975143 7f59968dda80 ZSTD supported: 1
+2021/03/14-08:59:03.975148 7f59968dda80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:59:03.975149 7f59968dda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:59:03.975288 7f59968dda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:59:03.975361 7f59968dda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:59:03.975363 7f59968dda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:59:03.975364 7f59968dda80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:59:03.975365 7f59968dda80 Options.compaction_filter: None
+2021/03/14-08:59:03.975366 7f59968dda80 Options.compaction_filter_factory: None
+2021/03/14-08:59:03.975366 7f59968dda80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:59:03.975367 7f59968dda80 Options.table_factory: BlockBasedTable
+2021/03/14-08:59:03.975388 7f59968dda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x242a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x240fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:59:03.975395 7f59968dda80 Options.write_buffer_size: 134217728
+2021/03/14-08:59:03.975396 7f59968dda80 Options.max_write_buffer_number: 6
+2021/03/14-08:59:03.975397 7f59968dda80 Options.compression[0]: NoCompression
+2021/03/14-08:59:03.975398 7f59968dda80 Options.compression[1]: NoCompression
+2021/03/14-08:59:03.975398 7f59968dda80 Options.compression[2]: Snappy
+2021/03/14-08:59:03.975399 7f59968dda80 Options.compression[3]: Snappy
+2021/03/14-08:59:03.975400 7f59968dda80 Options.compression[4]: Snappy
+2021/03/14-08:59:03.975400 7f59968dda80 Options.compression[5]: Snappy
+2021/03/14-08:59:03.975401 7f59968dda80 Options.compression[6]: Snappy
+2021/03/14-08:59:03.975402 7f59968dda80 Options.bottommost_compression: Disabled
+2021/03/14-08:59:03.975403 7f59968dda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:59:03.975404 7f59968dda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:59:03.975404 7f59968dda80 Options.num_levels: 7
+2021/03/14-08:59:03.975405 7f59968dda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:59:03.975406 7f59968dda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:59:03.975406 7f59968dda80 Options.compression_opts.window_bits: -14
+2021/03/14-08:59:03.975407 7f59968dda80 Options.compression_opts.level: -1
+2021/03/14-08:59:03.975408 7f59968dda80 Options.compression_opts.strategy: 0
+2021/03/14-08:59:03.975408 7f59968dda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:59:03.975409 7f59968dda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:59:03.975410 7f59968dda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:59:03.975410 7f59968dda80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:59:03.975411 7f59968dda80 Options.target_file_size_base: 67108864
+2021/03/14-08:59:03.975412 7f59968dda80 Options.target_file_size_multiplier: 1
+2021/03/14-08:59:03.975412 7f59968dda80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:59:03.975413 7f59968dda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:59:03.975414 7f59968dda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:59:03.975416 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:59:03.975426 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:59:03.975427 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:59:03.975428 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:59:03.975428 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:59:03.975429 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:59:03.975430 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:59:03.975430 7f59968dda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:59:03.975431 7f59968dda80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:59:03.975432 7f59968dda80 Options.arena_block_size: 16777216
+2021/03/14-08:59:03.975432 7f59968dda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:59:03.975433 7f59968dda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:59:03.975434 7f59968dda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:59:03.975435 7f59968dda80 Options.disable_auto_compactions: 0
+2021/03/14-08:59:03.975437 7f59968dda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:59:03.975438 7f59968dda80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:59:03.975438 7f59968dda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:59:03.975439 7f59968dda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:59:03.975440 7f59968dda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:59:03.975440 7f59968dda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:59:03.975441 7f59968dda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:59:03.975442 7f59968dda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:59:03.975443 7f59968dda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:59:03.975443 7f59968dda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:59:03.975444 7f59968dda80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:59:03.975445 7f59968dda80 Options.table_properties_collectors:
+2021/03/14-08:59:03.975445 7f59968dda80 Options.inplace_update_support: 0
+2021/03/14-08:59:03.975446 7f59968dda80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:59:03.975447 7f59968dda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:59:03.975448 7f59968dda80 Options.memtable_huge_page_size: 0
+2021/03/14-08:59:03.975449 7f59968dda80 Options.bloom_locality: 0
+2021/03/14-08:59:03.975449 7f59968dda80 Options.max_successive_merges: 0
+2021/03/14-08:59:03.975450 7f59968dda80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:59:03.975450 7f59968dda80 Options.paranoid_file_checks: 0
+2021/03/14-08:59:03.975451 7f59968dda80 Options.force_consistency_checks: 0
+2021/03/14-08:59:03.975452 7f59968dda80 Options.report_bg_io_stats: 0
+2021/03/14-08:59:03.975974 7f59968dda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:59:03.975978 7f59968dda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:59:03.976197 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708743976182, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:59:03.976204 7f59968dda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:59:04.704246 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708744704237, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708745457143 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708745457143
new file mode 100644
index 0000000..d0b64e6
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708745457143
@@ -0,0 +1,186 @@
+2021/03/14-08:59:04.716477 7f59968dda80 RocksDB version: 5.11.3
+2021/03/14-08:59:04.716531 7f59968dda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:59:04.716533 7f59968dda80 Compile date Mar 13 2021
+2021/03/14-08:59:04.716535 7f59968dda80 DB SUMMARY
+2021/03/14-08:59:04.716715 7f59968dda80 CURRENT file: CURRENT
+2021/03/14-08:59:04.716716 7f59968dda80 IDENTITY file: IDENTITY
+2021/03/14-08:59:04.716734 7f59968dda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:59:04.716736 7f59968dda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:59:04.716737 7f59968dda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:59:04.716743 7f59968dda80 Options.error_if_exists: 0
+2021/03/14-08:59:04.716744 7f59968dda80 Options.create_if_missing: 1
+2021/03/14-08:59:04.716744 7f59968dda80 Options.paranoid_checks: 1
+2021/03/14-08:59:04.716745 7f59968dda80 Options.env: 0x7f5997297080
+2021/03/14-08:59:04.716745 7f59968dda80 Options.info_log: 0x2432c90
+2021/03/14-08:59:04.716746 7f59968dda80 Options.max_file_opening_threads: 16
+2021/03/14-08:59:04.716747 7f59968dda80 Options.statistics: (nil)
+2021/03/14-08:59:04.716747 7f59968dda80 Options.use_fsync: 0
+2021/03/14-08:59:04.716748 7f59968dda80 Options.max_log_file_size: 0
+2021/03/14-08:59:04.716748 7f59968dda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:59:04.716749 7f59968dda80 Options.log_file_time_to_roll: 0
+2021/03/14-08:59:04.716750 7f59968dda80 Options.keep_log_file_num: 1000
+2021/03/14-08:59:04.716750 7f59968dda80 Options.recycle_log_file_num: 0
+2021/03/14-08:59:04.716751 7f59968dda80 Options.allow_fallocate: 1
+2021/03/14-08:59:04.716752 7f59968dda80 Options.allow_mmap_reads: 0
+2021/03/14-08:59:04.716752 7f59968dda80 Options.allow_mmap_writes: 0
+2021/03/14-08:59:04.716753 7f59968dda80 Options.use_direct_reads: 0
+2021/03/14-08:59:04.716753 7f59968dda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:59:04.716754 7f59968dda80 Options.create_missing_column_families: 0
+2021/03/14-08:59:04.716754 7f59968dda80 Options.db_log_dir:
+2021/03/14-08:59:04.716755 7f59968dda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:59:04.716756 7f59968dda80 Options.table_cache_numshardbits: 6
+2021/03/14-08:59:04.716756 7f59968dda80 Options.max_subcompactions: 1
+2021/03/14-08:59:04.716757 7f59968dda80 Options.max_background_flushes: -1
+2021/03/14-08:59:04.716757 7f59968dda80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:59:04.716758 7f59968dda80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:59:04.716758 7f59968dda80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:59:04.716759 7f59968dda80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:59:04.716760 7f59968dda80 Options.advise_random_on_open: 1
+2021/03/14-08:59:04.716760 7f59968dda80 Options.db_write_buffer_size: 0
+2021/03/14-08:59:04.716761 7f59968dda80 Options.write_buffer_manager: 0x241ab90
+2021/03/14-08:59:04.716761 7f59968dda80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:59:04.716762 7f59968dda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:59:04.716762 7f59968dda80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:59:04.716763 7f59968dda80 Options.use_adaptive_mutex: 0
+2021/03/14-08:59:04.716764 7f59968dda80 Options.rate_limiter: (nil)
+2021/03/14-08:59:04.716765 7f59968dda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:59:04.716773 7f59968dda80 Options.wal_recovery_mode: 2
+2021/03/14-08:59:04.716773 7f59968dda80 Options.enable_thread_tracking: 0
+2021/03/14-08:59:04.716774 7f59968dda80 Options.enable_pipelined_write: 0
+2021/03/14-08:59:04.716775 7f59968dda80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:59:04.716775 7f59968dda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:59:04.716776 7f59968dda80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:59:04.716776 7f59968dda80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:59:04.716777 7f59968dda80 Options.row_cache: None
+2021/03/14-08:59:04.716777 7f59968dda80 Options.wal_filter: None
+2021/03/14-08:59:04.716778 7f59968dda80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:59:04.716779 7f59968dda80 Options.allow_ingest_behind: 0
+2021/03/14-08:59:04.716779 7f59968dda80 Options.preserve_deletes: 0
+2021/03/14-08:59:04.716780 7f59968dda80 Options.two_write_queues: 0
+2021/03/14-08:59:04.716780 7f59968dda80 Options.manual_wal_flush: 0
+2021/03/14-08:59:04.716782 7f59968dda80 Options.max_background_jobs: 16
+2021/03/14-08:59:04.716782 7f59968dda80 Options.max_background_compactions: -1
+2021/03/14-08:59:04.716783 7f59968dda80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:59:04.716783 7f59968dda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:59:04.716784 7f59968dda80 Options.delayed_write_rate : 16777216
+2021/03/14-08:59:04.716785 7f59968dda80 Options.max_total_wal_size: 0
+2021/03/14-08:59:04.716785 7f59968dda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:59:04.716786 7f59968dda80 Options.stats_dump_period_sec: 600
+2021/03/14-08:59:04.716786 7f59968dda80 Options.max_open_files: -1
+2021/03/14-08:59:04.716787 7f59968dda80 Options.bytes_per_sync: 0
+2021/03/14-08:59:04.716787 7f59968dda80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:59:04.716788 7f59968dda80 Options.compaction_readahead_size: 0
+2021/03/14-08:59:04.716789 7f59968dda80 Compression algorithms supported:
+2021/03/14-08:59:04.716789 7f59968dda80 Snappy supported: 1
+2021/03/14-08:59:04.716790 7f59968dda80 Zlib supported: 1
+2021/03/14-08:59:04.716790 7f59968dda80 Bzip supported: 1
+2021/03/14-08:59:04.716791 7f59968dda80 LZ4 supported: 1
+2021/03/14-08:59:04.716792 7f59968dda80 ZSTDNotFinal supported: 1
+2021/03/14-08:59:04.716795 7f59968dda80 ZSTD supported: 1
+2021/03/14-08:59:04.716798 7f59968dda80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:59:04.716801 7f59968dda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:59:04.716897 7f59968dda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:59:04.716951 7f59968dda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:59:04.716953 7f59968dda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:59:04.716953 7f59968dda80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:59:04.716954 7f59968dda80 Options.compaction_filter: None
+2021/03/14-08:59:04.716955 7f59968dda80 Options.compaction_filter_factory: None
+2021/03/14-08:59:04.716955 7f59968dda80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:59:04.716956 7f59968dda80 Options.table_factory: BlockBasedTable
+2021/03/14-08:59:04.716973 7f59968dda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x242a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x240fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:59:04.716979 7f59968dda80 Options.write_buffer_size: 134217728
+2021/03/14-08:59:04.716979 7f59968dda80 Options.max_write_buffer_number: 6
+2021/03/14-08:59:04.716980 7f59968dda80 Options.compression[0]: NoCompression
+2021/03/14-08:59:04.716981 7f59968dda80 Options.compression[1]: NoCompression
+2021/03/14-08:59:04.716982 7f59968dda80 Options.compression[2]: Snappy
+2021/03/14-08:59:04.716982 7f59968dda80 Options.compression[3]: Snappy
+2021/03/14-08:59:04.716983 7f59968dda80 Options.compression[4]: Snappy
+2021/03/14-08:59:04.716983 7f59968dda80 Options.compression[5]: Snappy
+2021/03/14-08:59:04.716984 7f59968dda80 Options.compression[6]: Snappy
+2021/03/14-08:59:04.716985 7f59968dda80 Options.bottommost_compression: Disabled
+2021/03/14-08:59:04.716985 7f59968dda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:59:04.716986 7f59968dda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:59:04.716987 7f59968dda80 Options.num_levels: 7
+2021/03/14-08:59:04.716987 7f59968dda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:59:04.716988 7f59968dda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:59:04.716988 7f59968dda80 Options.compression_opts.window_bits: -14
+2021/03/14-08:59:04.716989 7f59968dda80 Options.compression_opts.level: -1
+2021/03/14-08:59:04.716990 7f59968dda80 Options.compression_opts.strategy: 0
+2021/03/14-08:59:04.716990 7f59968dda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:59:04.716991 7f59968dda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:59:04.716991 7f59968dda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:59:04.716992 7f59968dda80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:59:04.716992 7f59968dda80 Options.target_file_size_base: 67108864
+2021/03/14-08:59:04.716993 7f59968dda80 Options.target_file_size_multiplier: 1
+2021/03/14-08:59:04.716994 7f59968dda80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:59:04.716994 7f59968dda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:59:04.716995 7f59968dda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:59:04.716997 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:59:04.717004 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:59:04.717005 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:59:04.717006 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:59:04.717006 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:59:04.717007 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:59:04.717008 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:59:04.717008 7f59968dda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:59:04.717009 7f59968dda80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:59:04.717009 7f59968dda80 Options.arena_block_size: 16777216
+2021/03/14-08:59:04.717010 7f59968dda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:59:04.717011 7f59968dda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:59:04.717011 7f59968dda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:59:04.717012 7f59968dda80 Options.disable_auto_compactions: 0
+2021/03/14-08:59:04.717013 7f59968dda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:59:04.717014 7f59968dda80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:59:04.717015 7f59968dda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:59:04.717015 7f59968dda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:59:04.717016 7f59968dda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:59:04.717017 7f59968dda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:59:04.717017 7f59968dda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:59:04.717018 7f59968dda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:59:04.717019 7f59968dda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:59:04.717019 7f59968dda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:59:04.717020 7f59968dda80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:59:04.717020 7f59968dda80 Options.table_properties_collectors:
+2021/03/14-08:59:04.717021 7f59968dda80 Options.inplace_update_support: 0
+2021/03/14-08:59:04.717022 7f59968dda80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:59:04.717022 7f59968dda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:59:04.717023 7f59968dda80 Options.memtable_huge_page_size: 0
+2021/03/14-08:59:04.717024 7f59968dda80 Options.bloom_locality: 0
+2021/03/14-08:59:04.717024 7f59968dda80 Options.max_successive_merges: 0
+2021/03/14-08:59:04.717025 7f59968dda80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:59:04.717025 7f59968dda80 Options.paranoid_file_checks: 0
+2021/03/14-08:59:04.717026 7f59968dda80 Options.force_consistency_checks: 0
+2021/03/14-08:59:04.717026 7f59968dda80 Options.report_bg_io_stats: 0
+2021/03/14-08:59:04.717457 7f59968dda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:59:04.717460 7f59968dda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:59:04.717650 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708744717637, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:59:04.717657 7f59968dda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:59:05.445068 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708745445065, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708746195291 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708746195291
new file mode 100644
index 0000000..b1227d1
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708746195291
@@ -0,0 +1,186 @@
+2021/03/14-08:59:05.457581 7f59968dda80 RocksDB version: 5.11.3
+2021/03/14-08:59:05.457634 7f59968dda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:59:05.457636 7f59968dda80 Compile date Mar 13 2021
+2021/03/14-08:59:05.457638 7f59968dda80 DB SUMMARY
+2021/03/14-08:59:05.457819 7f59968dda80 CURRENT file: CURRENT
+2021/03/14-08:59:05.457820 7f59968dda80 IDENTITY file: IDENTITY
+2021/03/14-08:59:05.457838 7f59968dda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:59:05.457839 7f59968dda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:59:05.457840 7f59968dda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:59:05.457846 7f59968dda80 Options.error_if_exists: 0
+2021/03/14-08:59:05.457847 7f59968dda80 Options.create_if_missing: 1
+2021/03/14-08:59:05.457847 7f59968dda80 Options.paranoid_checks: 1
+2021/03/14-08:59:05.457848 7f59968dda80 Options.env: 0x7f5997297080
+2021/03/14-08:59:05.457849 7f59968dda80 Options.info_log: 0x2432c90
+2021/03/14-08:59:05.457849 7f59968dda80 Options.max_file_opening_threads: 16
+2021/03/14-08:59:05.457850 7f59968dda80 Options.statistics: (nil)
+2021/03/14-08:59:05.457851 7f59968dda80 Options.use_fsync: 0
+2021/03/14-08:59:05.457851 7f59968dda80 Options.max_log_file_size: 0
+2021/03/14-08:59:05.457852 7f59968dda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:59:05.457852 7f59968dda80 Options.log_file_time_to_roll: 0
+2021/03/14-08:59:05.457853 7f59968dda80 Options.keep_log_file_num: 1000
+2021/03/14-08:59:05.457854 7f59968dda80 Options.recycle_log_file_num: 0
+2021/03/14-08:59:05.457854 7f59968dda80 Options.allow_fallocate: 1
+2021/03/14-08:59:05.457855 7f59968dda80 Options.allow_mmap_reads: 0
+2021/03/14-08:59:05.457856 7f59968dda80 Options.allow_mmap_writes: 0
+2021/03/14-08:59:05.457856 7f59968dda80 Options.use_direct_reads: 0
+2021/03/14-08:59:05.457857 7f59968dda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:59:05.457857 7f59968dda80 Options.create_missing_column_families: 0
+2021/03/14-08:59:05.457858 7f59968dda80 Options.db_log_dir:
+2021/03/14-08:59:05.457858 7f59968dda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:59:05.457859 7f59968dda80 Options.table_cache_numshardbits: 6
+2021/03/14-08:59:05.457860 7f59968dda80 Options.max_subcompactions: 1
+2021/03/14-08:59:05.457860 7f59968dda80 Options.max_background_flushes: -1
+2021/03/14-08:59:05.457861 7f59968dda80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:59:05.457861 7f59968dda80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:59:05.457862 7f59968dda80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:59:05.457863 7f59968dda80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:59:05.457863 7f59968dda80 Options.advise_random_on_open: 1
+2021/03/14-08:59:05.457864 7f59968dda80 Options.db_write_buffer_size: 0
+2021/03/14-08:59:05.457864 7f59968dda80 Options.write_buffer_manager: 0x241ab90
+2021/03/14-08:59:05.457865 7f59968dda80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:59:05.457865 7f59968dda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:59:05.457866 7f59968dda80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:59:05.457867 7f59968dda80 Options.use_adaptive_mutex: 0
+2021/03/14-08:59:05.457867 7f59968dda80 Options.rate_limiter: (nil)
+2021/03/14-08:59:05.457869 7f59968dda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:59:05.457877 7f59968dda80 Options.wal_recovery_mode: 2
+2021/03/14-08:59:05.457878 7f59968dda80 Options.enable_thread_tracking: 0
+2021/03/14-08:59:05.457878 7f59968dda80 Options.enable_pipelined_write: 0
+2021/03/14-08:59:05.457879 7f59968dda80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:59:05.457879 7f59968dda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:59:05.457880 7f59968dda80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:59:05.457881 7f59968dda80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:59:05.457881 7f59968dda80 Options.row_cache: None
+2021/03/14-08:59:05.457882 7f59968dda80 Options.wal_filter: None
+2021/03/14-08:59:05.457882 7f59968dda80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:59:05.457883 7f59968dda80 Options.allow_ingest_behind: 0
+2021/03/14-08:59:05.457883 7f59968dda80 Options.preserve_deletes: 0
+2021/03/14-08:59:05.457884 7f59968dda80 Options.two_write_queues: 0
+2021/03/14-08:59:05.457885 7f59968dda80 Options.manual_wal_flush: 0
+2021/03/14-08:59:05.457886 7f59968dda80 Options.max_background_jobs: 16
+2021/03/14-08:59:05.457887 7f59968dda80 Options.max_background_compactions: -1
+2021/03/14-08:59:05.457887 7f59968dda80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:59:05.457888 7f59968dda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:59:05.457888 7f59968dda80 Options.delayed_write_rate : 16777216
+2021/03/14-08:59:05.457889 7f59968dda80 Options.max_total_wal_size: 0
+2021/03/14-08:59:05.457890 7f59968dda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:59:05.457890 7f59968dda80 Options.stats_dump_period_sec: 600
+2021/03/14-08:59:05.457891 7f59968dda80 Options.max_open_files: -1
+2021/03/14-08:59:05.457891 7f59968dda80 Options.bytes_per_sync: 0
+2021/03/14-08:59:05.457892 7f59968dda80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:59:05.457893 7f59968dda80 Options.compaction_readahead_size: 0
+2021/03/14-08:59:05.457893 7f59968dda80 Compression algorithms supported:
+2021/03/14-08:59:05.457894 7f59968dda80 Snappy supported: 1
+2021/03/14-08:59:05.457894 7f59968dda80 Zlib supported: 1
+2021/03/14-08:59:05.457895 7f59968dda80 Bzip supported: 1
+2021/03/14-08:59:05.457895 7f59968dda80 LZ4 supported: 1
+2021/03/14-08:59:05.457896 7f59968dda80 ZSTDNotFinal supported: 1
+2021/03/14-08:59:05.457900 7f59968dda80 ZSTD supported: 1
+2021/03/14-08:59:05.457903 7f59968dda80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:59:05.457904 7f59968dda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:59:05.457999 7f59968dda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:59:05.458054 7f59968dda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:59:05.458056 7f59968dda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:59:05.458056 7f59968dda80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:59:05.458057 7f59968dda80 Options.compaction_filter: None
+2021/03/14-08:59:05.458058 7f59968dda80 Options.compaction_filter_factory: None
+2021/03/14-08:59:05.458058 7f59968dda80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:59:05.458059 7f59968dda80 Options.table_factory: BlockBasedTable
+2021/03/14-08:59:05.458076 7f59968dda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x242a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x240fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:59:05.458082 7f59968dda80 Options.write_buffer_size: 134217728
+2021/03/14-08:59:05.458082 7f59968dda80 Options.max_write_buffer_number: 6
+2021/03/14-08:59:05.458083 7f59968dda80 Options.compression[0]: NoCompression
+2021/03/14-08:59:05.458084 7f59968dda80 Options.compression[1]: NoCompression
+2021/03/14-08:59:05.458084 7f59968dda80 Options.compression[2]: Snappy
+2021/03/14-08:59:05.458085 7f59968dda80 Options.compression[3]: Snappy
+2021/03/14-08:59:05.458086 7f59968dda80 Options.compression[4]: Snappy
+2021/03/14-08:59:05.458086 7f59968dda80 Options.compression[5]: Snappy
+2021/03/14-08:59:05.458087 7f59968dda80 Options.compression[6]: Snappy
+2021/03/14-08:59:05.458087 7f59968dda80 Options.bottommost_compression: Disabled
+2021/03/14-08:59:05.458088 7f59968dda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:59:05.458089 7f59968dda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:59:05.458089 7f59968dda80 Options.num_levels: 7
+2021/03/14-08:59:05.458090 7f59968dda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:59:05.458091 7f59968dda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:59:05.458091 7f59968dda80 Options.compression_opts.window_bits: -14
+2021/03/14-08:59:05.458092 7f59968dda80 Options.compression_opts.level: -1
+2021/03/14-08:59:05.458092 7f59968dda80 Options.compression_opts.strategy: 0
+2021/03/14-08:59:05.458093 7f59968dda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:59:05.458094 7f59968dda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:59:05.458094 7f59968dda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:59:05.458095 7f59968dda80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:59:05.458095 7f59968dda80 Options.target_file_size_base: 67108864
+2021/03/14-08:59:05.458096 7f59968dda80 Options.target_file_size_multiplier: 1
+2021/03/14-08:59:05.458096 7f59968dda80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:59:05.458097 7f59968dda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:59:05.458098 7f59968dda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:59:05.458099 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:59:05.458107 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:59:05.458108 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:59:05.458109 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:59:05.458109 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:59:05.458110 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:59:05.458110 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:59:05.458111 7f59968dda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:59:05.458111 7f59968dda80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:59:05.458112 7f59968dda80 Options.arena_block_size: 16777216
+2021/03/14-08:59:05.458113 7f59968dda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:59:05.458113 7f59968dda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:59:05.458114 7f59968dda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:59:05.458115 7f59968dda80 Options.disable_auto_compactions: 0
+2021/03/14-08:59:05.458116 7f59968dda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:59:05.458117 7f59968dda80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:59:05.458117 7f59968dda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:59:05.458118 7f59968dda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:59:05.458118 7f59968dda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:59:05.458119 7f59968dda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:59:05.458120 7f59968dda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:59:05.458121 7f59968dda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:59:05.458121 7f59968dda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:59:05.458122 7f59968dda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:59:05.458122 7f59968dda80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:59:05.458123 7f59968dda80 Options.table_properties_collectors:
+2021/03/14-08:59:05.458124 7f59968dda80 Options.inplace_update_support: 0
+2021/03/14-08:59:05.458124 7f59968dda80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:59:05.458125 7f59968dda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:59:05.458126 7f59968dda80 Options.memtable_huge_page_size: 0
+2021/03/14-08:59:05.458126 7f59968dda80 Options.bloom_locality: 0
+2021/03/14-08:59:05.458127 7f59968dda80 Options.max_successive_merges: 0
+2021/03/14-08:59:05.458127 7f59968dda80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:59:05.458128 7f59968dda80 Options.paranoid_file_checks: 0
+2021/03/14-08:59:05.458129 7f59968dda80 Options.force_consistency_checks: 0
+2021/03/14-08:59:05.458129 7f59968dda80 Options.report_bg_io_stats: 0
+2021/03/14-08:59:05.458513 7f59968dda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:59:05.458516 7f59968dda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:59:05.458692 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708745458682, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:59:05.458698 7f59968dda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:59:06.182886 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708746182882, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708746928273 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708746928273
new file mode 100644
index 0000000..97d6ea0
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708746928273
@@ -0,0 +1,186 @@
+2021/03/14-08:59:06.195713 7f59968dda80 RocksDB version: 5.11.3
+2021/03/14-08:59:06.195765 7f59968dda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:59:06.195767 7f59968dda80 Compile date Mar 13 2021
+2021/03/14-08:59:06.195769 7f59968dda80 DB SUMMARY
+2021/03/14-08:59:06.195949 7f59968dda80 CURRENT file: CURRENT
+2021/03/14-08:59:06.195951 7f59968dda80 IDENTITY file: IDENTITY
+2021/03/14-08:59:06.195968 7f59968dda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:59:06.195970 7f59968dda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:59:06.195971 7f59968dda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:59:06.195977 7f59968dda80 Options.error_if_exists: 0
+2021/03/14-08:59:06.195978 7f59968dda80 Options.create_if_missing: 1
+2021/03/14-08:59:06.195978 7f59968dda80 Options.paranoid_checks: 1
+2021/03/14-08:59:06.195979 7f59968dda80 Options.env: 0x7f5997297080
+2021/03/14-08:59:06.195979 7f59968dda80 Options.info_log: 0x2432c90
+2021/03/14-08:59:06.195980 7f59968dda80 Options.max_file_opening_threads: 16
+2021/03/14-08:59:06.195981 7f59968dda80 Options.statistics: (nil)
+2021/03/14-08:59:06.195981 7f59968dda80 Options.use_fsync: 0
+2021/03/14-08:59:06.195982 7f59968dda80 Options.max_log_file_size: 0
+2021/03/14-08:59:06.195983 7f59968dda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:59:06.195983 7f59968dda80 Options.log_file_time_to_roll: 0
+2021/03/14-08:59:06.195984 7f59968dda80 Options.keep_log_file_num: 1000
+2021/03/14-08:59:06.195984 7f59968dda80 Options.recycle_log_file_num: 0
+2021/03/14-08:59:06.195985 7f59968dda80 Options.allow_fallocate: 1
+2021/03/14-08:59:06.195986 7f59968dda80 Options.allow_mmap_reads: 0
+2021/03/14-08:59:06.195986 7f59968dda80 Options.allow_mmap_writes: 0
+2021/03/14-08:59:06.195987 7f59968dda80 Options.use_direct_reads: 0
+2021/03/14-08:59:06.195987 7f59968dda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:59:06.195988 7f59968dda80 Options.create_missing_column_families: 0
+2021/03/14-08:59:06.195988 7f59968dda80 Options.db_log_dir:
+2021/03/14-08:59:06.195989 7f59968dda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:59:06.195989 7f59968dda80 Options.table_cache_numshardbits: 6
+2021/03/14-08:59:06.195990 7f59968dda80 Options.max_subcompactions: 1
+2021/03/14-08:59:06.195991 7f59968dda80 Options.max_background_flushes: -1
+2021/03/14-08:59:06.195991 7f59968dda80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:59:06.195992 7f59968dda80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:59:06.195992 7f59968dda80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:59:06.195993 7f59968dda80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:59:06.195994 7f59968dda80 Options.advise_random_on_open: 1
+2021/03/14-08:59:06.195994 7f59968dda80 Options.db_write_buffer_size: 0
+2021/03/14-08:59:06.195995 7f59968dda80 Options.write_buffer_manager: 0x241ab90
+2021/03/14-08:59:06.195995 7f59968dda80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:59:06.195996 7f59968dda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:59:06.195996 7f59968dda80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:59:06.195997 7f59968dda80 Options.use_adaptive_mutex: 0
+2021/03/14-08:59:06.195998 7f59968dda80 Options.rate_limiter: (nil)
+2021/03/14-08:59:06.195999 7f59968dda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:59:06.196007 7f59968dda80 Options.wal_recovery_mode: 2
+2021/03/14-08:59:06.196008 7f59968dda80 Options.enable_thread_tracking: 0
+2021/03/14-08:59:06.196008 7f59968dda80 Options.enable_pipelined_write: 0
+2021/03/14-08:59:06.196009 7f59968dda80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:59:06.196009 7f59968dda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:59:06.196010 7f59968dda80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:59:06.196011 7f59968dda80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:59:06.196011 7f59968dda80 Options.row_cache: None
+2021/03/14-08:59:06.196012 7f59968dda80 Options.wal_filter: None
+2021/03/14-08:59:06.196012 7f59968dda80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:59:06.196013 7f59968dda80 Options.allow_ingest_behind: 0
+2021/03/14-08:59:06.196014 7f59968dda80 Options.preserve_deletes: 0
+2021/03/14-08:59:06.196014 7f59968dda80 Options.two_write_queues: 0
+2021/03/14-08:59:06.196015 7f59968dda80 Options.manual_wal_flush: 0
+2021/03/14-08:59:06.196016 7f59968dda80 Options.max_background_jobs: 16
+2021/03/14-08:59:06.196017 7f59968dda80 Options.max_background_compactions: -1
+2021/03/14-08:59:06.196017 7f59968dda80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:59:06.196018 7f59968dda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:59:06.196018 7f59968dda80 Options.delayed_write_rate : 16777216
+2021/03/14-08:59:06.196019 7f59968dda80 Options.max_total_wal_size: 0
+2021/03/14-08:59:06.196020 7f59968dda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:59:06.196020 7f59968dda80 Options.stats_dump_period_sec: 600
+2021/03/14-08:59:06.196021 7f59968dda80 Options.max_open_files: -1
+2021/03/14-08:59:06.196021 7f59968dda80 Options.bytes_per_sync: 0
+2021/03/14-08:59:06.196022 7f59968dda80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:59:06.196023 7f59968dda80 Options.compaction_readahead_size: 0
+2021/03/14-08:59:06.196023 7f59968dda80 Compression algorithms supported:
+2021/03/14-08:59:06.196024 7f59968dda80 Snappy supported: 1
+2021/03/14-08:59:06.196024 7f59968dda80 Zlib supported: 1
+2021/03/14-08:59:06.196025 7f59968dda80 Bzip supported: 1
+2021/03/14-08:59:06.196025 7f59968dda80 LZ4 supported: 1
+2021/03/14-08:59:06.196026 7f59968dda80 ZSTDNotFinal supported: 1
+2021/03/14-08:59:06.196030 7f59968dda80 ZSTD supported: 1
+2021/03/14-08:59:06.196033 7f59968dda80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:59:06.196034 7f59968dda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:59:06.196128 7f59968dda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:59:06.196183 7f59968dda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:59:06.196185 7f59968dda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:59:06.196185 7f59968dda80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:59:06.196186 7f59968dda80 Options.compaction_filter: None
+2021/03/14-08:59:06.196187 7f59968dda80 Options.compaction_filter_factory: None
+2021/03/14-08:59:06.196187 7f59968dda80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:59:06.196188 7f59968dda80 Options.table_factory: BlockBasedTable
+2021/03/14-08:59:06.196204 7f59968dda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x242a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x240fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:59:06.196209 7f59968dda80 Options.write_buffer_size: 134217728
+2021/03/14-08:59:06.196210 7f59968dda80 Options.max_write_buffer_number: 6
+2021/03/14-08:59:06.196211 7f59968dda80 Options.compression[0]: NoCompression
+2021/03/14-08:59:06.196212 7f59968dda80 Options.compression[1]: NoCompression
+2021/03/14-08:59:06.196212 7f59968dda80 Options.compression[2]: Snappy
+2021/03/14-08:59:06.196213 7f59968dda80 Options.compression[3]: Snappy
+2021/03/14-08:59:06.196214 7f59968dda80 Options.compression[4]: Snappy
+2021/03/14-08:59:06.196214 7f59968dda80 Options.compression[5]: Snappy
+2021/03/14-08:59:06.196215 7f59968dda80 Options.compression[6]: Snappy
+2021/03/14-08:59:06.196215 7f59968dda80 Options.bottommost_compression: Disabled
+2021/03/14-08:59:06.196216 7f59968dda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:59:06.196217 7f59968dda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:59:06.196218 7f59968dda80 Options.num_levels: 7
+2021/03/14-08:59:06.196218 7f59968dda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:59:06.196219 7f59968dda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:59:06.196219 7f59968dda80 Options.compression_opts.window_bits: -14
+2021/03/14-08:59:06.196220 7f59968dda80 Options.compression_opts.level: -1
+2021/03/14-08:59:06.196221 7f59968dda80 Options.compression_opts.strategy: 0
+2021/03/14-08:59:06.196221 7f59968dda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:59:06.196222 7f59968dda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:59:06.196222 7f59968dda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:59:06.196223 7f59968dda80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:59:06.196223 7f59968dda80 Options.target_file_size_base: 67108864
+2021/03/14-08:59:06.196224 7f59968dda80 Options.target_file_size_multiplier: 1
+2021/03/14-08:59:06.196225 7f59968dda80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:59:06.196225 7f59968dda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:59:06.196226 7f59968dda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:59:06.196227 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:59:06.196235 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:59:06.196236 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:59:06.196237 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:59:06.196251 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:59:06.196252 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:59:06.196253 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:59:06.196254 7f59968dda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:59:06.196254 7f59968dda80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:59:06.196255 7f59968dda80 Options.arena_block_size: 16777216
+2021/03/14-08:59:06.196256 7f59968dda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:59:06.196256 7f59968dda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:59:06.196257 7f59968dda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:59:06.196258 7f59968dda80 Options.disable_auto_compactions: 0
+2021/03/14-08:59:06.196259 7f59968dda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:59:06.196260 7f59968dda80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:59:06.196261 7f59968dda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:59:06.196261 7f59968dda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:59:06.196262 7f59968dda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:59:06.196263 7f59968dda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:59:06.196263 7f59968dda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:59:06.196265 7f59968dda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:59:06.196265 7f59968dda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:59:06.196266 7f59968dda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:59:06.196266 7f59968dda80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:59:06.196267 7f59968dda80 Options.table_properties_collectors:
+2021/03/14-08:59:06.196268 7f59968dda80 Options.inplace_update_support: 0
+2021/03/14-08:59:06.196268 7f59968dda80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:59:06.196269 7f59968dda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:59:06.196270 7f59968dda80 Options.memtable_huge_page_size: 0
+2021/03/14-08:59:06.196271 7f59968dda80 Options.bloom_locality: 0
+2021/03/14-08:59:06.196271 7f59968dda80 Options.max_successive_merges: 0
+2021/03/14-08:59:06.196272 7f59968dda80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:59:06.196272 7f59968dda80 Options.paranoid_file_checks: 0
+2021/03/14-08:59:06.196273 7f59968dda80 Options.force_consistency_checks: 0
+2021/03/14-08:59:06.196274 7f59968dda80 Options.report_bg_io_stats: 0
+2021/03/14-08:59:06.196701 7f59968dda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:59:06.196704 7f59968dda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:59:06.196883 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708746196873, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:59:06.196889 7f59968dda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:59:06.915370 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708746915366, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708850531744 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708850531744
new file mode 100644
index 0000000..4e0fed0
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708850531744
@@ -0,0 +1,186 @@
+2021/03/14-08:59:06.928697 7f59968dda80 RocksDB version: 5.11.3
+2021/03/14-08:59:06.928751 7f59968dda80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-08:59:06.928752 7f59968dda80 Compile date Mar 13 2021
+2021/03/14-08:59:06.928755 7f59968dda80 DB SUMMARY
+2021/03/14-08:59:06.928936 7f59968dda80 CURRENT file: CURRENT
+2021/03/14-08:59:06.928937 7f59968dda80 IDENTITY file: IDENTITY
+2021/03/14-08:59:06.928954 7f59968dda80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-08:59:06.928956 7f59968dda80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-08:59:06.928957 7f59968dda80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-08:59:06.928963 7f59968dda80 Options.error_if_exists: 0
+2021/03/14-08:59:06.928964 7f59968dda80 Options.create_if_missing: 1
+2021/03/14-08:59:06.928964 7f59968dda80 Options.paranoid_checks: 1
+2021/03/14-08:59:06.928965 7f59968dda80 Options.env: 0x7f5997297080
+2021/03/14-08:59:06.928966 7f59968dda80 Options.info_log: 0x2432c90
+2021/03/14-08:59:06.928966 7f59968dda80 Options.max_file_opening_threads: 16
+2021/03/14-08:59:06.928967 7f59968dda80 Options.statistics: (nil)
+2021/03/14-08:59:06.928967 7f59968dda80 Options.use_fsync: 0
+2021/03/14-08:59:06.928968 7f59968dda80 Options.max_log_file_size: 0
+2021/03/14-08:59:06.928969 7f59968dda80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-08:59:06.928969 7f59968dda80 Options.log_file_time_to_roll: 0
+2021/03/14-08:59:06.928970 7f59968dda80 Options.keep_log_file_num: 1000
+2021/03/14-08:59:06.928970 7f59968dda80 Options.recycle_log_file_num: 0
+2021/03/14-08:59:06.928971 7f59968dda80 Options.allow_fallocate: 1
+2021/03/14-08:59:06.928972 7f59968dda80 Options.allow_mmap_reads: 0
+2021/03/14-08:59:06.928972 7f59968dda80 Options.allow_mmap_writes: 0
+2021/03/14-08:59:06.928973 7f59968dda80 Options.use_direct_reads: 0
+2021/03/14-08:59:06.928974 7f59968dda80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-08:59:06.928974 7f59968dda80 Options.create_missing_column_families: 0
+2021/03/14-08:59:06.928975 7f59968dda80 Options.db_log_dir:
+2021/03/14-08:59:06.928975 7f59968dda80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-08:59:06.928976 7f59968dda80 Options.table_cache_numshardbits: 6
+2021/03/14-08:59:06.928976 7f59968dda80 Options.max_subcompactions: 1
+2021/03/14-08:59:06.928977 7f59968dda80 Options.max_background_flushes: -1
+2021/03/14-08:59:06.928978 7f59968dda80 Options.WAL_ttl_seconds: 0
+2021/03/14-08:59:06.928978 7f59968dda80 Options.WAL_size_limit_MB: 0
+2021/03/14-08:59:06.928979 7f59968dda80 Options.manifest_preallocation_size: 4194304
+2021/03/14-08:59:06.928979 7f59968dda80 Options.is_fd_close_on_exec: 1
+2021/03/14-08:59:06.928980 7f59968dda80 Options.advise_random_on_open: 1
+2021/03/14-08:59:06.928980 7f59968dda80 Options.db_write_buffer_size: 0
+2021/03/14-08:59:06.928981 7f59968dda80 Options.write_buffer_manager: 0x241ab90
+2021/03/14-08:59:06.928982 7f59968dda80 Options.access_hint_on_compaction_start: 1
+2021/03/14-08:59:06.928982 7f59968dda80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-08:59:06.928983 7f59968dda80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-08:59:06.928983 7f59968dda80 Options.use_adaptive_mutex: 0
+2021/03/14-08:59:06.928984 7f59968dda80 Options.rate_limiter: (nil)
+2021/03/14-08:59:06.928985 7f59968dda80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-08:59:06.928994 7f59968dda80 Options.wal_recovery_mode: 2
+2021/03/14-08:59:06.928995 7f59968dda80 Options.enable_thread_tracking: 0
+2021/03/14-08:59:06.928995 7f59968dda80 Options.enable_pipelined_write: 0
+2021/03/14-08:59:06.928996 7f59968dda80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-08:59:06.928996 7f59968dda80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-08:59:06.928997 7f59968dda80 Options.write_thread_max_yield_usec: 100
+2021/03/14-08:59:06.928998 7f59968dda80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-08:59:06.928998 7f59968dda80 Options.row_cache: None
+2021/03/14-08:59:06.928999 7f59968dda80 Options.wal_filter: None
+2021/03/14-08:59:06.928999 7f59968dda80 Options.avoid_flush_during_recovery: 0
+2021/03/14-08:59:06.929000 7f59968dda80 Options.allow_ingest_behind: 0
+2021/03/14-08:59:06.929000 7f59968dda80 Options.preserve_deletes: 0
+2021/03/14-08:59:06.929001 7f59968dda80 Options.two_write_queues: 0
+2021/03/14-08:59:06.929002 7f59968dda80 Options.manual_wal_flush: 0
+2021/03/14-08:59:06.929003 7f59968dda80 Options.max_background_jobs: 16
+2021/03/14-08:59:06.929003 7f59968dda80 Options.max_background_compactions: -1
+2021/03/14-08:59:06.929004 7f59968dda80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-08:59:06.929005 7f59968dda80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-08:59:06.929005 7f59968dda80 Options.delayed_write_rate : 16777216
+2021/03/14-08:59:06.929006 7f59968dda80 Options.max_total_wal_size: 0
+2021/03/14-08:59:06.929006 7f59968dda80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-08:59:06.929007 7f59968dda80 Options.stats_dump_period_sec: 600
+2021/03/14-08:59:06.929008 7f59968dda80 Options.max_open_files: -1
+2021/03/14-08:59:06.929008 7f59968dda80 Options.bytes_per_sync: 0
+2021/03/14-08:59:06.929009 7f59968dda80 Options.wal_bytes_per_sync: 0
+2021/03/14-08:59:06.929009 7f59968dda80 Options.compaction_readahead_size: 0
+2021/03/14-08:59:06.929010 7f59968dda80 Compression algorithms supported:
+2021/03/14-08:59:06.929011 7f59968dda80 Snappy supported: 1
+2021/03/14-08:59:06.929011 7f59968dda80 Zlib supported: 1
+2021/03/14-08:59:06.929012 7f59968dda80 Bzip supported: 1
+2021/03/14-08:59:06.929012 7f59968dda80 LZ4 supported: 1
+2021/03/14-08:59:06.929013 7f59968dda80 ZSTDNotFinal supported: 1
+2021/03/14-08:59:06.929017 7f59968dda80 ZSTD supported: 1
+2021/03/14-08:59:06.929020 7f59968dda80 Fast CRC32 supported: Supported on x86
+2021/03/14-08:59:06.929021 7f59968dda80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-08:59:06.929115 7f59968dda80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-08:59:06.929170 7f59968dda80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-08:59:06.929172 7f59968dda80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-08:59:06.929172 7f59968dda80 Options.merge_operator: UInt64AddOperator
+2021/03/14-08:59:06.929173 7f59968dda80 Options.compaction_filter: None
+2021/03/14-08:59:06.929174 7f59968dda80 Options.compaction_filter_factory: None
+2021/03/14-08:59:06.929174 7f59968dda80 Options.memtable_factory: SkipListFactory
+2021/03/14-08:59:06.929175 7f59968dda80 Options.table_factory: BlockBasedTable
+2021/03/14-08:59:06.929192 7f59968dda80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x242a520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x240fc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-08:59:06.929197 7f59968dda80 Options.write_buffer_size: 134217728
+2021/03/14-08:59:06.929198 7f59968dda80 Options.max_write_buffer_number: 6
+2021/03/14-08:59:06.929199 7f59968dda80 Options.compression[0]: NoCompression
+2021/03/14-08:59:06.929200 7f59968dda80 Options.compression[1]: NoCompression
+2021/03/14-08:59:06.929200 7f59968dda80 Options.compression[2]: Snappy
+2021/03/14-08:59:06.929201 7f59968dda80 Options.compression[3]: Snappy
+2021/03/14-08:59:06.929202 7f59968dda80 Options.compression[4]: Snappy
+2021/03/14-08:59:06.929202 7f59968dda80 Options.compression[5]: Snappy
+2021/03/14-08:59:06.929203 7f59968dda80 Options.compression[6]: Snappy
+2021/03/14-08:59:06.929204 7f59968dda80 Options.bottommost_compression: Disabled
+2021/03/14-08:59:06.929204 7f59968dda80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-08:59:06.929205 7f59968dda80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-08:59:06.929206 7f59968dda80 Options.num_levels: 7
+2021/03/14-08:59:06.929206 7f59968dda80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-08:59:06.929207 7f59968dda80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-08:59:06.929207 7f59968dda80 Options.compression_opts.window_bits: -14
+2021/03/14-08:59:06.929208 7f59968dda80 Options.compression_opts.level: -1
+2021/03/14-08:59:06.929208 7f59968dda80 Options.compression_opts.strategy: 0
+2021/03/14-08:59:06.929209 7f59968dda80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-08:59:06.929210 7f59968dda80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-08:59:06.929210 7f59968dda80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-08:59:06.929211 7f59968dda80 Options.level0_stop_writes_trigger: 36
+2021/03/14-08:59:06.929211 7f59968dda80 Options.target_file_size_base: 67108864
+2021/03/14-08:59:06.929212 7f59968dda80 Options.target_file_size_multiplier: 1
+2021/03/14-08:59:06.929213 7f59968dda80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-08:59:06.929213 7f59968dda80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-08:59:06.929214 7f59968dda80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-08:59:06.929216 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-08:59:06.929223 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-08:59:06.929224 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-08:59:06.929225 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-08:59:06.929225 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-08:59:06.929226 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-08:59:06.929226 7f59968dda80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-08:59:06.929227 7f59968dda80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-08:59:06.929228 7f59968dda80 Options.max_compaction_bytes: 1677721600
+2021/03/14-08:59:06.929228 7f59968dda80 Options.arena_block_size: 16777216
+2021/03/14-08:59:06.929229 7f59968dda80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-08:59:06.929229 7f59968dda80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-08:59:06.929230 7f59968dda80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-08:59:06.929231 7f59968dda80 Options.disable_auto_compactions: 0
+2021/03/14-08:59:06.929232 7f59968dda80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-08:59:06.929233 7f59968dda80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-08:59:06.929233 7f59968dda80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-08:59:06.929234 7f59968dda80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-08:59:06.929235 7f59968dda80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-08:59:06.929235 7f59968dda80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-08:59:06.929236 7f59968dda80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-08:59:06.929237 7f59968dda80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-08:59:06.929244 7f59968dda80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-08:59:06.929244 7f59968dda80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-08:59:06.929245 7f59968dda80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-08:59:06.929246 7f59968dda80 Options.table_properties_collectors:
+2021/03/14-08:59:06.929246 7f59968dda80 Options.inplace_update_support: 0
+2021/03/14-08:59:06.929247 7f59968dda80 Options.inplace_update_num_locks: 10000
+2021/03/14-08:59:06.929247 7f59968dda80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-08:59:06.929248 7f59968dda80 Options.memtable_huge_page_size: 0
+2021/03/14-08:59:06.929249 7f59968dda80 Options.bloom_locality: 0
+2021/03/14-08:59:06.929249 7f59968dda80 Options.max_successive_merges: 0
+2021/03/14-08:59:06.929250 7f59968dda80 Options.optimize_filters_for_hits: 0
+2021/03/14-08:59:06.929251 7f59968dda80 Options.paranoid_file_checks: 0
+2021/03/14-08:59:06.929251 7f59968dda80 Options.force_consistency_checks: 0
+2021/03/14-08:59:06.929252 7f59968dda80 Options.report_bg_io_stats: 0
+2021/03/14-08:59:06.929637 7f59968dda80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-08:59:06.929639 7f59968dda80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-08:59:06.929817 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708746929806, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-08:59:06.929822 7f59968dda80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-08:59:07.649348 7f59968dda80 EVENT_LOG_v1 {"time_micros": 1615708747649344, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708851257288 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708851257288
new file mode 100644
index 0000000..943b25f
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708851257288
@@ -0,0 +1,186 @@
+2021/03/14-09:00:50.532369 7f473178aa80 RocksDB version: 5.11.3
+2021/03/14-09:00:50.532456 7f473178aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:00:50.532459 7f473178aa80 Compile date Mar 13 2021
+2021/03/14-09:00:50.532467 7f473178aa80 DB SUMMARY
+2021/03/14-09:00:50.532704 7f473178aa80 CURRENT file: CURRENT
+2021/03/14-09:00:50.532706 7f473178aa80 IDENTITY file: IDENTITY
+2021/03/14-09:00:50.532730 7f473178aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:00:50.532732 7f473178aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:00:50.532734 7f473178aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:00:50.532744 7f473178aa80 Options.error_if_exists: 0
+2021/03/14-09:00:50.532746 7f473178aa80 Options.create_if_missing: 1
+2021/03/14-09:00:50.532747 7f473178aa80 Options.paranoid_checks: 1
+2021/03/14-09:00:50.532748 7f473178aa80 Options.env: 0x7f4732144080
+2021/03/14-09:00:50.532749 7f473178aa80 Options.info_log: 0x1fe2c90
+2021/03/14-09:00:50.532750 7f473178aa80 Options.max_file_opening_threads: 16
+2021/03/14-09:00:50.532751 7f473178aa80 Options.statistics: (nil)
+2021/03/14-09:00:50.532752 7f473178aa80 Options.use_fsync: 0
+2021/03/14-09:00:50.532753 7f473178aa80 Options.max_log_file_size: 0
+2021/03/14-09:00:50.532755 7f473178aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:00:50.532756 7f473178aa80 Options.log_file_time_to_roll: 0
+2021/03/14-09:00:50.532757 7f473178aa80 Options.keep_log_file_num: 1000
+2021/03/14-09:00:50.532758 7f473178aa80 Options.recycle_log_file_num: 0
+2021/03/14-09:00:50.532759 7f473178aa80 Options.allow_fallocate: 1
+2021/03/14-09:00:50.532760 7f473178aa80 Options.allow_mmap_reads: 0
+2021/03/14-09:00:50.532761 7f473178aa80 Options.allow_mmap_writes: 0
+2021/03/14-09:00:50.532762 7f473178aa80 Options.use_direct_reads: 0
+2021/03/14-09:00:50.532763 7f473178aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:00:50.532765 7f473178aa80 Options.create_missing_column_families: 0
+2021/03/14-09:00:50.532765 7f473178aa80 Options.db_log_dir:
+2021/03/14-09:00:50.532766 7f473178aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:00:50.532768 7f473178aa80 Options.table_cache_numshardbits: 6
+2021/03/14-09:00:50.532769 7f473178aa80 Options.max_subcompactions: 1
+2021/03/14-09:00:50.532770 7f473178aa80 Options.max_background_flushes: -1
+2021/03/14-09:00:50.532771 7f473178aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:00:50.532772 7f473178aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:00:50.532773 7f473178aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:00:50.532775 7f473178aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:00:50.532776 7f473178aa80 Options.advise_random_on_open: 1
+2021/03/14-09:00:50.532777 7f473178aa80 Options.db_write_buffer_size: 0
+2021/03/14-09:00:50.532778 7f473178aa80 Options.write_buffer_manager: 0x1fcab90
+2021/03/14-09:00:50.532779 7f473178aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:00:50.532780 7f473178aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:00:50.532781 7f473178aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:00:50.532781 7f473178aa80 Options.use_adaptive_mutex: 0
+2021/03/14-09:00:50.532782 7f473178aa80 Options.rate_limiter: (nil)
+2021/03/14-09:00:50.532784 7f473178aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:00:50.532795 7f473178aa80 Options.wal_recovery_mode: 2
+2021/03/14-09:00:50.532796 7f473178aa80 Options.enable_thread_tracking: 0
+2021/03/14-09:00:50.532797 7f473178aa80 Options.enable_pipelined_write: 0
+2021/03/14-09:00:50.532798 7f473178aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:00:50.532798 7f473178aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:00:50.532799 7f473178aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:00:50.532800 7f473178aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:00:50.532800 7f473178aa80 Options.row_cache: None
+2021/03/14-09:00:50.532801 7f473178aa80 Options.wal_filter: None
+2021/03/14-09:00:50.532802 7f473178aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:00:50.532802 7f473178aa80 Options.allow_ingest_behind: 0
+2021/03/14-09:00:50.532803 7f473178aa80 Options.preserve_deletes: 0
+2021/03/14-09:00:50.532804 7f473178aa80 Options.two_write_queues: 0
+2021/03/14-09:00:50.532804 7f473178aa80 Options.manual_wal_flush: 0
+2021/03/14-09:00:50.532806 7f473178aa80 Options.max_background_jobs: 16
+2021/03/14-09:00:50.532807 7f473178aa80 Options.max_background_compactions: -1
+2021/03/14-09:00:50.532807 7f473178aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:00:50.532808 7f473178aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:00:50.532809 7f473178aa80 Options.delayed_write_rate : 16777216
+2021/03/14-09:00:50.532809 7f473178aa80 Options.max_total_wal_size: 0
+2021/03/14-09:00:50.532810 7f473178aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:00:50.532811 7f473178aa80 Options.stats_dump_period_sec: 600
+2021/03/14-09:00:50.532811 7f473178aa80 Options.max_open_files: -1
+2021/03/14-09:00:50.532812 7f473178aa80 Options.bytes_per_sync: 0
+2021/03/14-09:00:50.532813 7f473178aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:00:50.532813 7f473178aa80 Options.compaction_readahead_size: 0
+2021/03/14-09:00:50.532814 7f473178aa80 Compression algorithms supported:
+2021/03/14-09:00:50.532815 7f473178aa80 Snappy supported: 1
+2021/03/14-09:00:50.532815 7f473178aa80 Zlib supported: 1
+2021/03/14-09:00:50.532816 7f473178aa80 Bzip supported: 1
+2021/03/14-09:00:50.532817 7f473178aa80 LZ4 supported: 1
+2021/03/14-09:00:50.532817 7f473178aa80 ZSTDNotFinal supported: 1
+2021/03/14-09:00:50.532823 7f473178aa80 ZSTD supported: 1
+2021/03/14-09:00:50.532827 7f473178aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:00:50.532830 7f473178aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:00:50.532965 7f473178aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:00:50.533043 7f473178aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:00:50.533045 7f473178aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:00:50.533047 7f473178aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:00:50.533047 7f473178aa80 Options.compaction_filter: None
+2021/03/14-09:00:50.533048 7f473178aa80 Options.compaction_filter_factory: None
+2021/03/14-09:00:50.533049 7f473178aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:00:50.533050 7f473178aa80 Options.table_factory: BlockBasedTable
+2021/03/14-09:00:50.533071 7f473178aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fda520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fbfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:00:50.533078 7f473178aa80 Options.write_buffer_size: 134217728
+2021/03/14-09:00:50.533079 7f473178aa80 Options.max_write_buffer_number: 6
+2021/03/14-09:00:50.533080 7f473178aa80 Options.compression[0]: NoCompression
+2021/03/14-09:00:50.533081 7f473178aa80 Options.compression[1]: NoCompression
+2021/03/14-09:00:50.533081 7f473178aa80 Options.compression[2]: Snappy
+2021/03/14-09:00:50.533082 7f473178aa80 Options.compression[3]: Snappy
+2021/03/14-09:00:50.533083 7f473178aa80 Options.compression[4]: Snappy
+2021/03/14-09:00:50.533083 7f473178aa80 Options.compression[5]: Snappy
+2021/03/14-09:00:50.533084 7f473178aa80 Options.compression[6]: Snappy
+2021/03/14-09:00:50.533085 7f473178aa80 Options.bottommost_compression: Disabled
+2021/03/14-09:00:50.533086 7f473178aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:00:50.533087 7f473178aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:00:50.533087 7f473178aa80 Options.num_levels: 7
+2021/03/14-09:00:50.533088 7f473178aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:00:50.533089 7f473178aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:00:50.533089 7f473178aa80 Options.compression_opts.window_bits: -14
+2021/03/14-09:00:50.533090 7f473178aa80 Options.compression_opts.level: -1
+2021/03/14-09:00:50.533091 7f473178aa80 Options.compression_opts.strategy: 0
+2021/03/14-09:00:50.533091 7f473178aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:00:50.533092 7f473178aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:00:50.533093 7f473178aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:00:50.533093 7f473178aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:00:50.533094 7f473178aa80 Options.target_file_size_base: 67108864
+2021/03/14-09:00:50.533095 7f473178aa80 Options.target_file_size_multiplier: 1
+2021/03/14-09:00:50.533095 7f473178aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:00:50.533096 7f473178aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:00:50.533096 7f473178aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:00:50.533099 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:00:50.533109 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:00:50.533109 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:00:50.533110 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:00:50.533111 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:00:50.533111 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:00:50.533112 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:00:50.533113 7f473178aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:00:50.533113 7f473178aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:00:50.533114 7f473178aa80 Options.arena_block_size: 16777216
+2021/03/14-09:00:50.533115 7f473178aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:00:50.533115 7f473178aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:00:50.533116 7f473178aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:00:50.533117 7f473178aa80 Options.disable_auto_compactions: 0
+2021/03/14-09:00:50.533119 7f473178aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:00:50.533120 7f473178aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:00:50.533121 7f473178aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:00:50.533122 7f473178aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:00:50.533122 7f473178aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:00:50.533123 7f473178aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:00:50.533124 7f473178aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:00:50.533125 7f473178aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:00:50.533126 7f473178aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:00:50.533126 7f473178aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:00:50.533127 7f473178aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:00:50.533128 7f473178aa80 Options.table_properties_collectors:
+2021/03/14-09:00:50.533128 7f473178aa80 Options.inplace_update_support: 0
+2021/03/14-09:00:50.533129 7f473178aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:00:50.533130 7f473178aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:00:50.533131 7f473178aa80 Options.memtable_huge_page_size: 0
+2021/03/14-09:00:50.533131 7f473178aa80 Options.bloom_locality: 0
+2021/03/14-09:00:50.533132 7f473178aa80 Options.max_successive_merges: 0
+2021/03/14-09:00:50.533133 7f473178aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:00:50.533133 7f473178aa80 Options.paranoid_file_checks: 0
+2021/03/14-09:00:50.533134 7f473178aa80 Options.force_consistency_checks: 0
+2021/03/14-09:00:50.533134 7f473178aa80 Options.report_bg_io_stats: 0
+2021/03/14-09:00:50.533672 7f473178aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:00:50.533676 7f473178aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:00:50.533895 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708850533879, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:00:50.533903 7f473178aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:00:51.245487 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708851245484, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708851977157 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708851977157
new file mode 100644
index 0000000..d5b2a5c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708851977157
@@ -0,0 +1,186 @@
+2021/03/14-09:00:51.257735 7f473178aa80 RocksDB version: 5.11.3
+2021/03/14-09:00:51.257788 7f473178aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:00:51.257790 7f473178aa80 Compile date Mar 13 2021
+2021/03/14-09:00:51.257794 7f473178aa80 DB SUMMARY
+2021/03/14-09:00:51.257977 7f473178aa80 CURRENT file: CURRENT
+2021/03/14-09:00:51.257978 7f473178aa80 IDENTITY file: IDENTITY
+2021/03/14-09:00:51.257996 7f473178aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:00:51.257997 7f473178aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:00:51.257998 7f473178aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:00:51.258004 7f473178aa80 Options.error_if_exists: 0
+2021/03/14-09:00:51.258005 7f473178aa80 Options.create_if_missing: 1
+2021/03/14-09:00:51.258006 7f473178aa80 Options.paranoid_checks: 1
+2021/03/14-09:00:51.258006 7f473178aa80 Options.env: 0x7f4732144080
+2021/03/14-09:00:51.258007 7f473178aa80 Options.info_log: 0x1fe2c90
+2021/03/14-09:00:51.258008 7f473178aa80 Options.max_file_opening_threads: 16
+2021/03/14-09:00:51.258008 7f473178aa80 Options.statistics: (nil)
+2021/03/14-09:00:51.258009 7f473178aa80 Options.use_fsync: 0
+2021/03/14-09:00:51.258009 7f473178aa80 Options.max_log_file_size: 0
+2021/03/14-09:00:51.258010 7f473178aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:00:51.258011 7f473178aa80 Options.log_file_time_to_roll: 0
+2021/03/14-09:00:51.258011 7f473178aa80 Options.keep_log_file_num: 1000
+2021/03/14-09:00:51.258012 7f473178aa80 Options.recycle_log_file_num: 0
+2021/03/14-09:00:51.258012 7f473178aa80 Options.allow_fallocate: 1
+2021/03/14-09:00:51.258013 7f473178aa80 Options.allow_mmap_reads: 0
+2021/03/14-09:00:51.258013 7f473178aa80 Options.allow_mmap_writes: 0
+2021/03/14-09:00:51.258014 7f473178aa80 Options.use_direct_reads: 0
+2021/03/14-09:00:51.258015 7f473178aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:00:51.258015 7f473178aa80 Options.create_missing_column_families: 0
+2021/03/14-09:00:51.258016 7f473178aa80 Options.db_log_dir:
+2021/03/14-09:00:51.258016 7f473178aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:00:51.258017 7f473178aa80 Options.table_cache_numshardbits: 6
+2021/03/14-09:00:51.258017 7f473178aa80 Options.max_subcompactions: 1
+2021/03/14-09:00:51.258018 7f473178aa80 Options.max_background_flushes: -1
+2021/03/14-09:00:51.258019 7f473178aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:00:51.258019 7f473178aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:00:51.258020 7f473178aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:00:51.258020 7f473178aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:00:51.258021 7f473178aa80 Options.advise_random_on_open: 1
+2021/03/14-09:00:51.258021 7f473178aa80 Options.db_write_buffer_size: 0
+2021/03/14-09:00:51.258022 7f473178aa80 Options.write_buffer_manager: 0x1fcab90
+2021/03/14-09:00:51.258023 7f473178aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:00:51.258023 7f473178aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:00:51.258024 7f473178aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:00:51.258024 7f473178aa80 Options.use_adaptive_mutex: 0
+2021/03/14-09:00:51.258025 7f473178aa80 Options.rate_limiter: (nil)
+2021/03/14-09:00:51.258026 7f473178aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:00:51.258034 7f473178aa80 Options.wal_recovery_mode: 2
+2021/03/14-09:00:51.258035 7f473178aa80 Options.enable_thread_tracking: 0
+2021/03/14-09:00:51.258035 7f473178aa80 Options.enable_pipelined_write: 0
+2021/03/14-09:00:51.258036 7f473178aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:00:51.258036 7f473178aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:00:51.258037 7f473178aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:00:51.258037 7f473178aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:00:51.258038 7f473178aa80 Options.row_cache: None
+2021/03/14-09:00:51.258039 7f473178aa80 Options.wal_filter: None
+2021/03/14-09:00:51.258039 7f473178aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:00:51.258040 7f473178aa80 Options.allow_ingest_behind: 0
+2021/03/14-09:00:51.258040 7f473178aa80 Options.preserve_deletes: 0
+2021/03/14-09:00:51.258041 7f473178aa80 Options.two_write_queues: 0
+2021/03/14-09:00:51.258041 7f473178aa80 Options.manual_wal_flush: 0
+2021/03/14-09:00:51.258043 7f473178aa80 Options.max_background_jobs: 16
+2021/03/14-09:00:51.258043 7f473178aa80 Options.max_background_compactions: -1
+2021/03/14-09:00:51.258044 7f473178aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:00:51.258044 7f473178aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:00:51.258045 7f473178aa80 Options.delayed_write_rate : 16777216
+2021/03/14-09:00:51.258045 7f473178aa80 Options.max_total_wal_size: 0
+2021/03/14-09:00:51.258046 7f473178aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:00:51.258047 7f473178aa80 Options.stats_dump_period_sec: 600
+2021/03/14-09:00:51.258047 7f473178aa80 Options.max_open_files: -1
+2021/03/14-09:00:51.258048 7f473178aa80 Options.bytes_per_sync: 0
+2021/03/14-09:00:51.258048 7f473178aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:00:51.258049 7f473178aa80 Options.compaction_readahead_size: 0
+2021/03/14-09:00:51.258049 7f473178aa80 Compression algorithms supported:
+2021/03/14-09:00:51.258050 7f473178aa80 Snappy supported: 1
+2021/03/14-09:00:51.258051 7f473178aa80 Zlib supported: 1
+2021/03/14-09:00:51.258051 7f473178aa80 Bzip supported: 1
+2021/03/14-09:00:51.258052 7f473178aa80 LZ4 supported: 1
+2021/03/14-09:00:51.258052 7f473178aa80 ZSTDNotFinal supported: 1
+2021/03/14-09:00:51.258056 7f473178aa80 ZSTD supported: 1
+2021/03/14-09:00:51.258059 7f473178aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:00:51.258060 7f473178aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:00:51.258150 7f473178aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:00:51.258204 7f473178aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:00:51.258205 7f473178aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:00:51.258206 7f473178aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:00:51.258207 7f473178aa80 Options.compaction_filter: None
+2021/03/14-09:00:51.258207 7f473178aa80 Options.compaction_filter_factory: None
+2021/03/14-09:00:51.258208 7f473178aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:00:51.258209 7f473178aa80 Options.table_factory: BlockBasedTable
+2021/03/14-09:00:51.258225 7f473178aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fda520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fbfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:00:51.258230 7f473178aa80 Options.write_buffer_size: 134217728
+2021/03/14-09:00:51.258231 7f473178aa80 Options.max_write_buffer_number: 6
+2021/03/14-09:00:51.258232 7f473178aa80 Options.compression[0]: NoCompression
+2021/03/14-09:00:51.258232 7f473178aa80 Options.compression[1]: NoCompression
+2021/03/14-09:00:51.258233 7f473178aa80 Options.compression[2]: Snappy
+2021/03/14-09:00:51.258234 7f473178aa80 Options.compression[3]: Snappy
+2021/03/14-09:00:51.258234 7f473178aa80 Options.compression[4]: Snappy
+2021/03/14-09:00:51.258235 7f473178aa80 Options.compression[5]: Snappy
+2021/03/14-09:00:51.258235 7f473178aa80 Options.compression[6]: Snappy
+2021/03/14-09:00:51.258236 7f473178aa80 Options.bottommost_compression: Disabled
+2021/03/14-09:00:51.258237 7f473178aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:00:51.258242 7f473178aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:00:51.258243 7f473178aa80 Options.num_levels: 7
+2021/03/14-09:00:51.258244 7f473178aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:00:51.258244 7f473178aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:00:51.258245 7f473178aa80 Options.compression_opts.window_bits: -14
+2021/03/14-09:00:51.258245 7f473178aa80 Options.compression_opts.level: -1
+2021/03/14-09:00:51.258246 7f473178aa80 Options.compression_opts.strategy: 0
+2021/03/14-09:00:51.258247 7f473178aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:00:51.258247 7f473178aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:00:51.258248 7f473178aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:00:51.258248 7f473178aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:00:51.258249 7f473178aa80 Options.target_file_size_base: 67108864
+2021/03/14-09:00:51.258249 7f473178aa80 Options.target_file_size_multiplier: 1
+2021/03/14-09:00:51.258250 7f473178aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:00:51.258251 7f473178aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:00:51.258251 7f473178aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:00:51.258253 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:00:51.258261 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:00:51.258261 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:00:51.258262 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:00:51.258263 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:00:51.258263 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:00:51.258264 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:00:51.258264 7f473178aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:00:51.258265 7f473178aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:00:51.258265 7f473178aa80 Options.arena_block_size: 16777216
+2021/03/14-09:00:51.258266 7f473178aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:00:51.258267 7f473178aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:00:51.258267 7f473178aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:00:51.258268 7f473178aa80 Options.disable_auto_compactions: 0
+2021/03/14-09:00:51.258270 7f473178aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:00:51.258270 7f473178aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:00:51.258271 7f473178aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:00:51.258271 7f473178aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:00:51.258272 7f473178aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:00:51.258273 7f473178aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:00:51.258273 7f473178aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:00:51.258275 7f473178aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:00:51.258275 7f473178aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:00:51.258276 7f473178aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:00:51.258276 7f473178aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:00:51.258277 7f473178aa80 Options.table_properties_collectors:
+2021/03/14-09:00:51.258278 7f473178aa80 Options.inplace_update_support: 0
+2021/03/14-09:00:51.258278 7f473178aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:00:51.258279 7f473178aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:00:51.258280 7f473178aa80 Options.memtable_huge_page_size: 0
+2021/03/14-09:00:51.258280 7f473178aa80 Options.bloom_locality: 0
+2021/03/14-09:00:51.258281 7f473178aa80 Options.max_successive_merges: 0
+2021/03/14-09:00:51.258281 7f473178aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:00:51.258282 7f473178aa80 Options.paranoid_file_checks: 0
+2021/03/14-09:00:51.258283 7f473178aa80 Options.force_consistency_checks: 0
+2021/03/14-09:00:51.258283 7f473178aa80 Options.report_bg_io_stats: 0
+2021/03/14-09:00:51.258668 7f473178aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:00:51.258671 7f473178aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:00:51.258849 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708851258839, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:00:51.258854 7f473178aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:00:51.965625 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708851965622, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708852697175 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708852697175
new file mode 100644
index 0000000..dffbd72
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708852697175
@@ -0,0 +1,186 @@
+2021/03/14-09:00:51.977598 7f473178aa80 RocksDB version: 5.11.3
+2021/03/14-09:00:51.977651 7f473178aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:00:51.977653 7f473178aa80 Compile date Mar 13 2021
+2021/03/14-09:00:51.977657 7f473178aa80 DB SUMMARY
+2021/03/14-09:00:51.977841 7f473178aa80 CURRENT file: CURRENT
+2021/03/14-09:00:51.977842 7f473178aa80 IDENTITY file: IDENTITY
+2021/03/14-09:00:51.977860 7f473178aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:00:51.977861 7f473178aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:00:51.977862 7f473178aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:00:51.977868 7f473178aa80 Options.error_if_exists: 0
+2021/03/14-09:00:51.977869 7f473178aa80 Options.create_if_missing: 1
+2021/03/14-09:00:51.977869 7f473178aa80 Options.paranoid_checks: 1
+2021/03/14-09:00:51.977870 7f473178aa80 Options.env: 0x7f4732144080
+2021/03/14-09:00:51.977871 7f473178aa80 Options.info_log: 0x1fe2c90
+2021/03/14-09:00:51.977871 7f473178aa80 Options.max_file_opening_threads: 16
+2021/03/14-09:00:51.977872 7f473178aa80 Options.statistics: (nil)
+2021/03/14-09:00:51.977873 7f473178aa80 Options.use_fsync: 0
+2021/03/14-09:00:51.977873 7f473178aa80 Options.max_log_file_size: 0
+2021/03/14-09:00:51.977874 7f473178aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:00:51.977874 7f473178aa80 Options.log_file_time_to_roll: 0
+2021/03/14-09:00:51.977875 7f473178aa80 Options.keep_log_file_num: 1000
+2021/03/14-09:00:51.977876 7f473178aa80 Options.recycle_log_file_num: 0
+2021/03/14-09:00:51.977876 7f473178aa80 Options.allow_fallocate: 1
+2021/03/14-09:00:51.977877 7f473178aa80 Options.allow_mmap_reads: 0
+2021/03/14-09:00:51.977877 7f473178aa80 Options.allow_mmap_writes: 0
+2021/03/14-09:00:51.977878 7f473178aa80 Options.use_direct_reads: 0
+2021/03/14-09:00:51.977878 7f473178aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:00:51.977879 7f473178aa80 Options.create_missing_column_families: 0
+2021/03/14-09:00:51.977879 7f473178aa80 Options.db_log_dir:
+2021/03/14-09:00:51.977880 7f473178aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:00:51.977881 7f473178aa80 Options.table_cache_numshardbits: 6
+2021/03/14-09:00:51.977881 7f473178aa80 Options.max_subcompactions: 1
+2021/03/14-09:00:51.977882 7f473178aa80 Options.max_background_flushes: -1
+2021/03/14-09:00:51.977883 7f473178aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:00:51.977883 7f473178aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:00:51.977884 7f473178aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:00:51.977884 7f473178aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:00:51.977885 7f473178aa80 Options.advise_random_on_open: 1
+2021/03/14-09:00:51.977885 7f473178aa80 Options.db_write_buffer_size: 0
+2021/03/14-09:00:51.977886 7f473178aa80 Options.write_buffer_manager: 0x1fcab90
+2021/03/14-09:00:51.977887 7f473178aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:00:51.977887 7f473178aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:00:51.977888 7f473178aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:00:51.977888 7f473178aa80 Options.use_adaptive_mutex: 0
+2021/03/14-09:00:51.977889 7f473178aa80 Options.rate_limiter: (nil)
+2021/03/14-09:00:51.977890 7f473178aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:00:51.977898 7f473178aa80 Options.wal_recovery_mode: 2
+2021/03/14-09:00:51.977899 7f473178aa80 Options.enable_thread_tracking: 0
+2021/03/14-09:00:51.977899 7f473178aa80 Options.enable_pipelined_write: 0
+2021/03/14-09:00:51.977900 7f473178aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:00:51.977900 7f473178aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:00:51.977901 7f473178aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:00:51.977901 7f473178aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:00:51.977902 7f473178aa80 Options.row_cache: None
+2021/03/14-09:00:51.977903 7f473178aa80 Options.wal_filter: None
+2021/03/14-09:00:51.977903 7f473178aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:00:51.977904 7f473178aa80 Options.allow_ingest_behind: 0
+2021/03/14-09:00:51.977904 7f473178aa80 Options.preserve_deletes: 0
+2021/03/14-09:00:51.977905 7f473178aa80 Options.two_write_queues: 0
+2021/03/14-09:00:51.977905 7f473178aa80 Options.manual_wal_flush: 0
+2021/03/14-09:00:51.977907 7f473178aa80 Options.max_background_jobs: 16
+2021/03/14-09:00:51.977907 7f473178aa80 Options.max_background_compactions: -1
+2021/03/14-09:00:51.977908 7f473178aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:00:51.977908 7f473178aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:00:51.977909 7f473178aa80 Options.delayed_write_rate : 16777216
+2021/03/14-09:00:51.977910 7f473178aa80 Options.max_total_wal_size: 0
+2021/03/14-09:00:51.977910 7f473178aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:00:51.977911 7f473178aa80 Options.stats_dump_period_sec: 600
+2021/03/14-09:00:51.977911 7f473178aa80 Options.max_open_files: -1
+2021/03/14-09:00:51.977912 7f473178aa80 Options.bytes_per_sync: 0
+2021/03/14-09:00:51.977912 7f473178aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:00:51.977913 7f473178aa80 Options.compaction_readahead_size: 0
+2021/03/14-09:00:51.977914 7f473178aa80 Compression algorithms supported:
+2021/03/14-09:00:51.977914 7f473178aa80 Snappy supported: 1
+2021/03/14-09:00:51.977915 7f473178aa80 Zlib supported: 1
+2021/03/14-09:00:51.977915 7f473178aa80 Bzip supported: 1
+2021/03/14-09:00:51.977916 7f473178aa80 LZ4 supported: 1
+2021/03/14-09:00:51.977916 7f473178aa80 ZSTDNotFinal supported: 1
+2021/03/14-09:00:51.977920 7f473178aa80 ZSTD supported: 1
+2021/03/14-09:00:51.977923 7f473178aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:00:51.977925 7f473178aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:00:51.978016 7f473178aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:00:51.978070 7f473178aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:00:51.978071 7f473178aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:00:51.978072 7f473178aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:00:51.978073 7f473178aa80 Options.compaction_filter: None
+2021/03/14-09:00:51.978073 7f473178aa80 Options.compaction_filter_factory: None
+2021/03/14-09:00:51.978074 7f473178aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:00:51.978075 7f473178aa80 Options.table_factory: BlockBasedTable
+2021/03/14-09:00:51.978091 7f473178aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fda520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fbfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:00:51.978097 7f473178aa80 Options.write_buffer_size: 134217728
+2021/03/14-09:00:51.978097 7f473178aa80 Options.max_write_buffer_number: 6
+2021/03/14-09:00:51.978098 7f473178aa80 Options.compression[0]: NoCompression
+2021/03/14-09:00:51.978099 7f473178aa80 Options.compression[1]: NoCompression
+2021/03/14-09:00:51.978100 7f473178aa80 Options.compression[2]: Snappy
+2021/03/14-09:00:51.978100 7f473178aa80 Options.compression[3]: Snappy
+2021/03/14-09:00:51.978101 7f473178aa80 Options.compression[4]: Snappy
+2021/03/14-09:00:51.978102 7f473178aa80 Options.compression[5]: Snappy
+2021/03/14-09:00:51.978102 7f473178aa80 Options.compression[6]: Snappy
+2021/03/14-09:00:51.978103 7f473178aa80 Options.bottommost_compression: Disabled
+2021/03/14-09:00:51.978103 7f473178aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:00:51.978104 7f473178aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:00:51.978105 7f473178aa80 Options.num_levels: 7
+2021/03/14-09:00:51.978105 7f473178aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:00:51.978106 7f473178aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:00:51.978106 7f473178aa80 Options.compression_opts.window_bits: -14
+2021/03/14-09:00:51.978107 7f473178aa80 Options.compression_opts.level: -1
+2021/03/14-09:00:51.978107 7f473178aa80 Options.compression_opts.strategy: 0
+2021/03/14-09:00:51.978108 7f473178aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:00:51.978109 7f473178aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:00:51.978109 7f473178aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:00:51.978110 7f473178aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:00:51.978110 7f473178aa80 Options.target_file_size_base: 67108864
+2021/03/14-09:00:51.978111 7f473178aa80 Options.target_file_size_multiplier: 1
+2021/03/14-09:00:51.978111 7f473178aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:00:51.978112 7f473178aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:00:51.978113 7f473178aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:00:51.978114 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:00:51.978122 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:00:51.978123 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:00:51.978123 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:00:51.978124 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:00:51.978124 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:00:51.978125 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:00:51.978125 7f473178aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:00:51.978126 7f473178aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:00:51.978127 7f473178aa80 Options.arena_block_size: 16777216
+2021/03/14-09:00:51.978127 7f473178aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:00:51.978128 7f473178aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:00:51.978128 7f473178aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:00:51.978129 7f473178aa80 Options.disable_auto_compactions: 0
+2021/03/14-09:00:51.978131 7f473178aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:00:51.978131 7f473178aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:00:51.978132 7f473178aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:00:51.978132 7f473178aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:00:51.978133 7f473178aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:00:51.978134 7f473178aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:00:51.978134 7f473178aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:00:51.978135 7f473178aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:00:51.978136 7f473178aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:00:51.978137 7f473178aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:00:51.978137 7f473178aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:00:51.978138 7f473178aa80 Options.table_properties_collectors:
+2021/03/14-09:00:51.978138 7f473178aa80 Options.inplace_update_support: 0
+2021/03/14-09:00:51.978139 7f473178aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:00:51.978139 7f473178aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:00:51.978140 7f473178aa80 Options.memtable_huge_page_size: 0
+2021/03/14-09:00:51.978141 7f473178aa80 Options.bloom_locality: 0
+2021/03/14-09:00:51.978141 7f473178aa80 Options.max_successive_merges: 0
+2021/03/14-09:00:51.978142 7f473178aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:00:51.978143 7f473178aa80 Options.paranoid_file_checks: 0
+2021/03/14-09:00:51.978143 7f473178aa80 Options.force_consistency_checks: 0
+2021/03/14-09:00:51.978144 7f473178aa80 Options.report_bg_io_stats: 0
+2021/03/14-09:00:51.978525 7f473178aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:00:51.978528 7f473178aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:00:51.978704 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708851978693, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:00:51.978709 7f473178aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:00:52.685267 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708852685263, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708853425433 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708853425433
new file mode 100644
index 0000000..63db8b4
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708853425433
@@ -0,0 +1,186 @@
+2021/03/14-09:00:52.697618 7f473178aa80 RocksDB version: 5.11.3
+2021/03/14-09:00:52.697672 7f473178aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:00:52.697673 7f473178aa80 Compile date Mar 13 2021
+2021/03/14-09:00:52.697678 7f473178aa80 DB SUMMARY
+2021/03/14-09:00:52.697862 7f473178aa80 CURRENT file: CURRENT
+2021/03/14-09:00:52.697863 7f473178aa80 IDENTITY file: IDENTITY
+2021/03/14-09:00:52.697880 7f473178aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:00:52.697881 7f473178aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:00:52.697882 7f473178aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:00:52.697888 7f473178aa80 Options.error_if_exists: 0
+2021/03/14-09:00:52.697889 7f473178aa80 Options.create_if_missing: 1
+2021/03/14-09:00:52.697890 7f473178aa80 Options.paranoid_checks: 1
+2021/03/14-09:00:52.697890 7f473178aa80 Options.env: 0x7f4732144080
+2021/03/14-09:00:52.697891 7f473178aa80 Options.info_log: 0x1fe2c90
+2021/03/14-09:00:52.697892 7f473178aa80 Options.max_file_opening_threads: 16
+2021/03/14-09:00:52.697892 7f473178aa80 Options.statistics: (nil)
+2021/03/14-09:00:52.697893 7f473178aa80 Options.use_fsync: 0
+2021/03/14-09:00:52.697894 7f473178aa80 Options.max_log_file_size: 0
+2021/03/14-09:00:52.697894 7f473178aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:00:52.697895 7f473178aa80 Options.log_file_time_to_roll: 0
+2021/03/14-09:00:52.697895 7f473178aa80 Options.keep_log_file_num: 1000
+2021/03/14-09:00:52.697896 7f473178aa80 Options.recycle_log_file_num: 0
+2021/03/14-09:00:52.697897 7f473178aa80 Options.allow_fallocate: 1
+2021/03/14-09:00:52.697897 7f473178aa80 Options.allow_mmap_reads: 0
+2021/03/14-09:00:52.697898 7f473178aa80 Options.allow_mmap_writes: 0
+2021/03/14-09:00:52.697898 7f473178aa80 Options.use_direct_reads: 0
+2021/03/14-09:00:52.697899 7f473178aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:00:52.697899 7f473178aa80 Options.create_missing_column_families: 0
+2021/03/14-09:00:52.697900 7f473178aa80 Options.db_log_dir:
+2021/03/14-09:00:52.697900 7f473178aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:00:52.697901 7f473178aa80 Options.table_cache_numshardbits: 6
+2021/03/14-09:00:52.697902 7f473178aa80 Options.max_subcompactions: 1
+2021/03/14-09:00:52.697902 7f473178aa80 Options.max_background_flushes: -1
+2021/03/14-09:00:52.697903 7f473178aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:00:52.697903 7f473178aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:00:52.697904 7f473178aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:00:52.697905 7f473178aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:00:52.697905 7f473178aa80 Options.advise_random_on_open: 1
+2021/03/14-09:00:52.697906 7f473178aa80 Options.db_write_buffer_size: 0
+2021/03/14-09:00:52.697906 7f473178aa80 Options.write_buffer_manager: 0x1fcab90
+2021/03/14-09:00:52.697907 7f473178aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:00:52.697907 7f473178aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:00:52.697908 7f473178aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:00:52.697908 7f473178aa80 Options.use_adaptive_mutex: 0
+2021/03/14-09:00:52.697909 7f473178aa80 Options.rate_limiter: (nil)
+2021/03/14-09:00:52.697911 7f473178aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:00:52.697919 7f473178aa80 Options.wal_recovery_mode: 2
+2021/03/14-09:00:52.697919 7f473178aa80 Options.enable_thread_tracking: 0
+2021/03/14-09:00:52.697920 7f473178aa80 Options.enable_pipelined_write: 0
+2021/03/14-09:00:52.697921 7f473178aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:00:52.697921 7f473178aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:00:52.697922 7f473178aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:00:52.697922 7f473178aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:00:52.697923 7f473178aa80 Options.row_cache: None
+2021/03/14-09:00:52.697923 7f473178aa80 Options.wal_filter: None
+2021/03/14-09:00:52.697924 7f473178aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:00:52.697925 7f473178aa80 Options.allow_ingest_behind: 0
+2021/03/14-09:00:52.697925 7f473178aa80 Options.preserve_deletes: 0
+2021/03/14-09:00:52.697926 7f473178aa80 Options.two_write_queues: 0
+2021/03/14-09:00:52.697926 7f473178aa80 Options.manual_wal_flush: 0
+2021/03/14-09:00:52.697927 7f473178aa80 Options.max_background_jobs: 16
+2021/03/14-09:00:52.697928 7f473178aa80 Options.max_background_compactions: -1
+2021/03/14-09:00:52.697929 7f473178aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:00:52.697929 7f473178aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:00:52.697930 7f473178aa80 Options.delayed_write_rate : 16777216
+2021/03/14-09:00:52.697930 7f473178aa80 Options.max_total_wal_size: 0
+2021/03/14-09:00:52.697931 7f473178aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:00:52.697932 7f473178aa80 Options.stats_dump_period_sec: 600
+2021/03/14-09:00:52.697932 7f473178aa80 Options.max_open_files: -1
+2021/03/14-09:00:52.697933 7f473178aa80 Options.bytes_per_sync: 0
+2021/03/14-09:00:52.697933 7f473178aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:00:52.697934 7f473178aa80 Options.compaction_readahead_size: 0
+2021/03/14-09:00:52.697934 7f473178aa80 Compression algorithms supported:
+2021/03/14-09:00:52.697935 7f473178aa80 Snappy supported: 1
+2021/03/14-09:00:52.697936 7f473178aa80 Zlib supported: 1
+2021/03/14-09:00:52.697936 7f473178aa80 Bzip supported: 1
+2021/03/14-09:00:52.697937 7f473178aa80 LZ4 supported: 1
+2021/03/14-09:00:52.697937 7f473178aa80 ZSTDNotFinal supported: 1
+2021/03/14-09:00:52.697941 7f473178aa80 ZSTD supported: 1
+2021/03/14-09:00:52.697944 7f473178aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:00:52.697945 7f473178aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:00:52.698036 7f473178aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:00:52.698090 7f473178aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:00:52.698092 7f473178aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:00:52.698092 7f473178aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:00:52.698093 7f473178aa80 Options.compaction_filter: None
+2021/03/14-09:00:52.698094 7f473178aa80 Options.compaction_filter_factory: None
+2021/03/14-09:00:52.698094 7f473178aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:00:52.698095 7f473178aa80 Options.table_factory: BlockBasedTable
+2021/03/14-09:00:52.698112 7f473178aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fda520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fbfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:00:52.698117 7f473178aa80 Options.write_buffer_size: 134217728
+2021/03/14-09:00:52.698118 7f473178aa80 Options.max_write_buffer_number: 6
+2021/03/14-09:00:52.698119 7f473178aa80 Options.compression[0]: NoCompression
+2021/03/14-09:00:52.698119 7f473178aa80 Options.compression[1]: NoCompression
+2021/03/14-09:00:52.698120 7f473178aa80 Options.compression[2]: Snappy
+2021/03/14-09:00:52.698121 7f473178aa80 Options.compression[3]: Snappy
+2021/03/14-09:00:52.698121 7f473178aa80 Options.compression[4]: Snappy
+2021/03/14-09:00:52.698122 7f473178aa80 Options.compression[5]: Snappy
+2021/03/14-09:00:52.698122 7f473178aa80 Options.compression[6]: Snappy
+2021/03/14-09:00:52.698123 7f473178aa80 Options.bottommost_compression: Disabled
+2021/03/14-09:00:52.698124 7f473178aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:00:52.698124 7f473178aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:00:52.698125 7f473178aa80 Options.num_levels: 7
+2021/03/14-09:00:52.698125 7f473178aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:00:52.698126 7f473178aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:00:52.698127 7f473178aa80 Options.compression_opts.window_bits: -14
+2021/03/14-09:00:52.698127 7f473178aa80 Options.compression_opts.level: -1
+2021/03/14-09:00:52.698128 7f473178aa80 Options.compression_opts.strategy: 0
+2021/03/14-09:00:52.698128 7f473178aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:00:52.698129 7f473178aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:00:52.698129 7f473178aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:00:52.698130 7f473178aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:00:52.698131 7f473178aa80 Options.target_file_size_base: 67108864
+2021/03/14-09:00:52.698131 7f473178aa80 Options.target_file_size_multiplier: 1
+2021/03/14-09:00:52.698132 7f473178aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:00:52.698132 7f473178aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:00:52.698133 7f473178aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:00:52.698135 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:00:52.698142 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:00:52.698143 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:00:52.698144 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:00:52.698144 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:00:52.698145 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:00:52.698145 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:00:52.698146 7f473178aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:00:52.698146 7f473178aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:00:52.698147 7f473178aa80 Options.arena_block_size: 16777216
+2021/03/14-09:00:52.698148 7f473178aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:00:52.698148 7f473178aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:00:52.698149 7f473178aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:00:52.698149 7f473178aa80 Options.disable_auto_compactions: 0
+2021/03/14-09:00:52.698151 7f473178aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:00:52.698152 7f473178aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:00:52.698152 7f473178aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:00:52.698153 7f473178aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:00:52.698153 7f473178aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:00:52.698154 7f473178aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:00:52.698155 7f473178aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:00:52.698156 7f473178aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:00:52.698156 7f473178aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:00:52.698157 7f473178aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:00:52.698157 7f473178aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:00:52.698158 7f473178aa80 Options.table_properties_collectors:
+2021/03/14-09:00:52.698159 7f473178aa80 Options.inplace_update_support: 0
+2021/03/14-09:00:52.698159 7f473178aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:00:52.698160 7f473178aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:00:52.698161 7f473178aa80 Options.memtable_huge_page_size: 0
+2021/03/14-09:00:52.698161 7f473178aa80 Options.bloom_locality: 0
+2021/03/14-09:00:52.698162 7f473178aa80 Options.max_successive_merges: 0
+2021/03/14-09:00:52.698162 7f473178aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:00:52.698163 7f473178aa80 Options.paranoid_file_checks: 0
+2021/03/14-09:00:52.698163 7f473178aa80 Options.force_consistency_checks: 0
+2021/03/14-09:00:52.698164 7f473178aa80 Options.report_bg_io_stats: 0
+2021/03/14-09:00:52.698548 7f473178aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:00:52.698551 7f473178aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:00:52.698727 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708852698717, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:00:52.698732 7f473178aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:00:53.412910 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708853412907, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708874697228 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708874697228
new file mode 100644
index 0000000..a29411c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708874697228
@@ -0,0 +1,186 @@
+2021/03/14-09:00:53.425868 7f473178aa80 RocksDB version: 5.11.3
+2021/03/14-09:00:53.425920 7f473178aa80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:00:53.425921 7f473178aa80 Compile date Mar 13 2021
+2021/03/14-09:00:53.425926 7f473178aa80 DB SUMMARY
+2021/03/14-09:00:53.426110 7f473178aa80 CURRENT file: CURRENT
+2021/03/14-09:00:53.426112 7f473178aa80 IDENTITY file: IDENTITY
+2021/03/14-09:00:53.426130 7f473178aa80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:00:53.426131 7f473178aa80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:00:53.426132 7f473178aa80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:00:53.426138 7f473178aa80 Options.error_if_exists: 0
+2021/03/14-09:00:53.426139 7f473178aa80 Options.create_if_missing: 1
+2021/03/14-09:00:53.426139 7f473178aa80 Options.paranoid_checks: 1
+2021/03/14-09:00:53.426140 7f473178aa80 Options.env: 0x7f4732144080
+2021/03/14-09:00:53.426140 7f473178aa80 Options.info_log: 0x1fe2c90
+2021/03/14-09:00:53.426141 7f473178aa80 Options.max_file_opening_threads: 16
+2021/03/14-09:00:53.426142 7f473178aa80 Options.statistics: (nil)
+2021/03/14-09:00:53.426142 7f473178aa80 Options.use_fsync: 0
+2021/03/14-09:00:53.426143 7f473178aa80 Options.max_log_file_size: 0
+2021/03/14-09:00:53.426144 7f473178aa80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:00:53.426144 7f473178aa80 Options.log_file_time_to_roll: 0
+2021/03/14-09:00:53.426145 7f473178aa80 Options.keep_log_file_num: 1000
+2021/03/14-09:00:53.426145 7f473178aa80 Options.recycle_log_file_num: 0
+2021/03/14-09:00:53.426146 7f473178aa80 Options.allow_fallocate: 1
+2021/03/14-09:00:53.426147 7f473178aa80 Options.allow_mmap_reads: 0
+2021/03/14-09:00:53.426147 7f473178aa80 Options.allow_mmap_writes: 0
+2021/03/14-09:00:53.426148 7f473178aa80 Options.use_direct_reads: 0
+2021/03/14-09:00:53.426148 7f473178aa80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:00:53.426149 7f473178aa80 Options.create_missing_column_families: 0
+2021/03/14-09:00:53.426149 7f473178aa80 Options.db_log_dir:
+2021/03/14-09:00:53.426150 7f473178aa80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:00:53.426150 7f473178aa80 Options.table_cache_numshardbits: 6
+2021/03/14-09:00:53.426151 7f473178aa80 Options.max_subcompactions: 1
+2021/03/14-09:00:53.426152 7f473178aa80 Options.max_background_flushes: -1
+2021/03/14-09:00:53.426152 7f473178aa80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:00:53.426153 7f473178aa80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:00:53.426153 7f473178aa80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:00:53.426154 7f473178aa80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:00:53.426155 7f473178aa80 Options.advise_random_on_open: 1
+2021/03/14-09:00:53.426155 7f473178aa80 Options.db_write_buffer_size: 0
+2021/03/14-09:00:53.426156 7f473178aa80 Options.write_buffer_manager: 0x1fcab90
+2021/03/14-09:00:53.426156 7f473178aa80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:00:53.426157 7f473178aa80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:00:53.426157 7f473178aa80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:00:53.426158 7f473178aa80 Options.use_adaptive_mutex: 0
+2021/03/14-09:00:53.426158 7f473178aa80 Options.rate_limiter: (nil)
+2021/03/14-09:00:53.426160 7f473178aa80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:00:53.426168 7f473178aa80 Options.wal_recovery_mode: 2
+2021/03/14-09:00:53.426168 7f473178aa80 Options.enable_thread_tracking: 0
+2021/03/14-09:00:53.426169 7f473178aa80 Options.enable_pipelined_write: 0
+2021/03/14-09:00:53.426169 7f473178aa80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:00:53.426170 7f473178aa80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:00:53.426170 7f473178aa80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:00:53.426171 7f473178aa80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:00:53.426172 7f473178aa80 Options.row_cache: None
+2021/03/14-09:00:53.426172 7f473178aa80 Options.wal_filter: None
+2021/03/14-09:00:53.426173 7f473178aa80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:00:53.426173 7f473178aa80 Options.allow_ingest_behind: 0
+2021/03/14-09:00:53.426174 7f473178aa80 Options.preserve_deletes: 0
+2021/03/14-09:00:53.426174 7f473178aa80 Options.two_write_queues: 0
+2021/03/14-09:00:53.426175 7f473178aa80 Options.manual_wal_flush: 0
+2021/03/14-09:00:53.426176 7f473178aa80 Options.max_background_jobs: 16
+2021/03/14-09:00:53.426177 7f473178aa80 Options.max_background_compactions: -1
+2021/03/14-09:00:53.426177 7f473178aa80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:00:53.426178 7f473178aa80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:00:53.426179 7f473178aa80 Options.delayed_write_rate : 16777216
+2021/03/14-09:00:53.426179 7f473178aa80 Options.max_total_wal_size: 0
+2021/03/14-09:00:53.426180 7f473178aa80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:00:53.426180 7f473178aa80 Options.stats_dump_period_sec: 600
+2021/03/14-09:00:53.426181 7f473178aa80 Options.max_open_files: -1
+2021/03/14-09:00:53.426182 7f473178aa80 Options.bytes_per_sync: 0
+2021/03/14-09:00:53.426182 7f473178aa80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:00:53.426183 7f473178aa80 Options.compaction_readahead_size: 0
+2021/03/14-09:00:53.426183 7f473178aa80 Compression algorithms supported:
+2021/03/14-09:00:53.426184 7f473178aa80 Snappy supported: 1
+2021/03/14-09:00:53.426184 7f473178aa80 Zlib supported: 1
+2021/03/14-09:00:53.426185 7f473178aa80 Bzip supported: 1
+2021/03/14-09:00:53.426186 7f473178aa80 LZ4 supported: 1
+2021/03/14-09:00:53.426186 7f473178aa80 ZSTDNotFinal supported: 1
+2021/03/14-09:00:53.426190 7f473178aa80 ZSTD supported: 1
+2021/03/14-09:00:53.426193 7f473178aa80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:00:53.426194 7f473178aa80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:00:53.426292 7f473178aa80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:00:53.426347 7f473178aa80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:00:53.426348 7f473178aa80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:00:53.426349 7f473178aa80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:00:53.426350 7f473178aa80 Options.compaction_filter: None
+2021/03/14-09:00:53.426350 7f473178aa80 Options.compaction_filter_factory: None
+2021/03/14-09:00:53.426351 7f473178aa80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:00:53.426352 7f473178aa80 Options.table_factory: BlockBasedTable
+2021/03/14-09:00:53.426369 7f473178aa80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x1fda520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x1fbfc20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:00:53.426374 7f473178aa80 Options.write_buffer_size: 134217728
+2021/03/14-09:00:53.426375 7f473178aa80 Options.max_write_buffer_number: 6
+2021/03/14-09:00:53.426375 7f473178aa80 Options.compression[0]: NoCompression
+2021/03/14-09:00:53.426376 7f473178aa80 Options.compression[1]: NoCompression
+2021/03/14-09:00:53.426377 7f473178aa80 Options.compression[2]: Snappy
+2021/03/14-09:00:53.426377 7f473178aa80 Options.compression[3]: Snappy
+2021/03/14-09:00:53.426378 7f473178aa80 Options.compression[4]: Snappy
+2021/03/14-09:00:53.426378 7f473178aa80 Options.compression[5]: Snappy
+2021/03/14-09:00:53.426379 7f473178aa80 Options.compression[6]: Snappy
+2021/03/14-09:00:53.426380 7f473178aa80 Options.bottommost_compression: Disabled
+2021/03/14-09:00:53.426380 7f473178aa80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:00:53.426381 7f473178aa80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:00:53.426382 7f473178aa80 Options.num_levels: 7
+2021/03/14-09:00:53.426382 7f473178aa80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:00:53.426383 7f473178aa80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:00:53.426383 7f473178aa80 Options.compression_opts.window_bits: -14
+2021/03/14-09:00:53.426384 7f473178aa80 Options.compression_opts.level: -1
+2021/03/14-09:00:53.426384 7f473178aa80 Options.compression_opts.strategy: 0
+2021/03/14-09:00:53.426385 7f473178aa80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:00:53.426386 7f473178aa80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:00:53.426386 7f473178aa80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:00:53.426387 7f473178aa80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:00:53.426387 7f473178aa80 Options.target_file_size_base: 67108864
+2021/03/14-09:00:53.426388 7f473178aa80 Options.target_file_size_multiplier: 1
+2021/03/14-09:00:53.426388 7f473178aa80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:00:53.426389 7f473178aa80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:00:53.426390 7f473178aa80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:00:53.426391 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:00:53.426400 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:00:53.426400 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:00:53.426401 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:00:53.426402 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:00:53.426402 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:00:53.426403 7f473178aa80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:00:53.426403 7f473178aa80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:00:53.426404 7f473178aa80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:00:53.426404 7f473178aa80 Options.arena_block_size: 16777216
+2021/03/14-09:00:53.426405 7f473178aa80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:00:53.426406 7f473178aa80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:00:53.426406 7f473178aa80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:00:53.426407 7f473178aa80 Options.disable_auto_compactions: 0
+2021/03/14-09:00:53.426408 7f473178aa80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:00:53.426409 7f473178aa80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:00:53.426410 7f473178aa80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:00:53.426410 7f473178aa80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:00:53.426411 7f473178aa80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:00:53.426411 7f473178aa80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:00:53.426412 7f473178aa80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:00:53.426413 7f473178aa80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:00:53.426414 7f473178aa80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:00:53.426414 7f473178aa80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:00:53.426415 7f473178aa80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:00:53.426415 7f473178aa80 Options.table_properties_collectors:
+2021/03/14-09:00:53.426416 7f473178aa80 Options.inplace_update_support: 0
+2021/03/14-09:00:53.426416 7f473178aa80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:00:53.426417 7f473178aa80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:00:53.426418 7f473178aa80 Options.memtable_huge_page_size: 0
+2021/03/14-09:00:53.426418 7f473178aa80 Options.bloom_locality: 0
+2021/03/14-09:00:53.426419 7f473178aa80 Options.max_successive_merges: 0
+2021/03/14-09:00:53.426420 7f473178aa80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:00:53.426420 7f473178aa80 Options.paranoid_file_checks: 0
+2021/03/14-09:00:53.426421 7f473178aa80 Options.force_consistency_checks: 0
+2021/03/14-09:00:53.426421 7f473178aa80 Options.report_bg_io_stats: 0
+2021/03/14-09:00:53.426802 7f473178aa80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:00:53.426805 7f473178aa80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:00:53.426985 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708853426974, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:00:53.426990 7f473178aa80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:00:54.134366 7f473178aa80 EVENT_LOG_v1 {"time_micros": 1615708854134363, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708875415275 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708875415275
new file mode 100644
index 0000000..172856c
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708875415275
@@ -0,0 +1,186 @@
+2021/03/14-09:01:14.697822 7ff7910d0a80 RocksDB version: 5.11.3
+2021/03/14-09:01:14.697903 7ff7910d0a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:01:14.697906 7ff7910d0a80 Compile date Mar 13 2021
+2021/03/14-09:01:14.697909 7ff7910d0a80 DB SUMMARY
+2021/03/14-09:01:14.698132 7ff7910d0a80 CURRENT file: CURRENT
+2021/03/14-09:01:14.698133 7ff7910d0a80 IDENTITY file: IDENTITY
+2021/03/14-09:01:14.698155 7ff7910d0a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:01:14.698156 7ff7910d0a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:01:14.698157 7ff7910d0a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:01:14.698165 7ff7910d0a80 Options.error_if_exists: 0
+2021/03/14-09:01:14.698166 7ff7910d0a80 Options.create_if_missing: 1
+2021/03/14-09:01:14.698167 7ff7910d0a80 Options.paranoid_checks: 1
+2021/03/14-09:01:14.698167 7ff7910d0a80 Options.env: 0x7ff791a8a080
+2021/03/14-09:01:14.698168 7ff7910d0a80 Options.info_log: 0x24e8c90
+2021/03/14-09:01:14.698169 7ff7910d0a80 Options.max_file_opening_threads: 16
+2021/03/14-09:01:14.698169 7ff7910d0a80 Options.statistics: (nil)
+2021/03/14-09:01:14.698170 7ff7910d0a80 Options.use_fsync: 0
+2021/03/14-09:01:14.698171 7ff7910d0a80 Options.max_log_file_size: 0
+2021/03/14-09:01:14.698172 7ff7910d0a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:01:14.698172 7ff7910d0a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:01:14.698173 7ff7910d0a80 Options.keep_log_file_num: 1000
+2021/03/14-09:01:14.698174 7ff7910d0a80 Options.recycle_log_file_num: 0
+2021/03/14-09:01:14.698175 7ff7910d0a80 Options.allow_fallocate: 1
+2021/03/14-09:01:14.698175 7ff7910d0a80 Options.allow_mmap_reads: 0
+2021/03/14-09:01:14.698176 7ff7910d0a80 Options.allow_mmap_writes: 0
+2021/03/14-09:01:14.698177 7ff7910d0a80 Options.use_direct_reads: 0
+2021/03/14-09:01:14.698177 7ff7910d0a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:01:14.698178 7ff7910d0a80 Options.create_missing_column_families: 0
+2021/03/14-09:01:14.698179 7ff7910d0a80 Options.db_log_dir:
+2021/03/14-09:01:14.698179 7ff7910d0a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:01:14.698180 7ff7910d0a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:01:14.698181 7ff7910d0a80 Options.max_subcompactions: 1
+2021/03/14-09:01:14.698181 7ff7910d0a80 Options.max_background_flushes: -1
+2021/03/14-09:01:14.698182 7ff7910d0a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:01:14.698183 7ff7910d0a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:01:14.698183 7ff7910d0a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:01:14.698184 7ff7910d0a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:01:14.698185 7ff7910d0a80 Options.advise_random_on_open: 1
+2021/03/14-09:01:14.698185 7ff7910d0a80 Options.db_write_buffer_size: 0
+2021/03/14-09:01:14.698186 7ff7910d0a80 Options.write_buffer_manager: 0x24d0b90
+2021/03/14-09:01:14.698187 7ff7910d0a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:01:14.698188 7ff7910d0a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:01:14.698188 7ff7910d0a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:01:14.698189 7ff7910d0a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:01:14.698189 7ff7910d0a80 Options.rate_limiter: (nil)
+2021/03/14-09:01:14.698192 7ff7910d0a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:01:14.698201 7ff7910d0a80 Options.wal_recovery_mode: 2
+2021/03/14-09:01:14.698202 7ff7910d0a80 Options.enable_thread_tracking: 0
+2021/03/14-09:01:14.698202 7ff7910d0a80 Options.enable_pipelined_write: 0
+2021/03/14-09:01:14.698203 7ff7910d0a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:01:14.698204 7ff7910d0a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:01:14.698204 7ff7910d0a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:01:14.698205 7ff7910d0a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:01:14.698206 7ff7910d0a80 Options.row_cache: None
+2021/03/14-09:01:14.698206 7ff7910d0a80 Options.wal_filter: None
+2021/03/14-09:01:14.698207 7ff7910d0a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:01:14.698208 7ff7910d0a80 Options.allow_ingest_behind: 0
+2021/03/14-09:01:14.698208 7ff7910d0a80 Options.preserve_deletes: 0
+2021/03/14-09:01:14.698209 7ff7910d0a80 Options.two_write_queues: 0
+2021/03/14-09:01:14.698210 7ff7910d0a80 Options.manual_wal_flush: 0
+2021/03/14-09:01:14.698211 7ff7910d0a80 Options.max_background_jobs: 16
+2021/03/14-09:01:14.698212 7ff7910d0a80 Options.max_background_compactions: -1
+2021/03/14-09:01:14.698213 7ff7910d0a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:01:14.698213 7ff7910d0a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:01:14.698214 7ff7910d0a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:01:14.698215 7ff7910d0a80 Options.max_total_wal_size: 0
+2021/03/14-09:01:14.698216 7ff7910d0a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:01:14.698216 7ff7910d0a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:01:14.698217 7ff7910d0a80 Options.max_open_files: -1
+2021/03/14-09:01:14.698218 7ff7910d0a80 Options.bytes_per_sync: 0
+2021/03/14-09:01:14.698218 7ff7910d0a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:01:14.698219 7ff7910d0a80 Options.compaction_readahead_size: 0
+2021/03/14-09:01:14.698220 7ff7910d0a80 Compression algorithms supported:
+2021/03/14-09:01:14.698220 7ff7910d0a80 Snappy supported: 1
+2021/03/14-09:01:14.698221 7ff7910d0a80 Zlib supported: 1
+2021/03/14-09:01:14.698222 7ff7910d0a80 Bzip supported: 1
+2021/03/14-09:01:14.698223 7ff7910d0a80 LZ4 supported: 1
+2021/03/14-09:01:14.698223 7ff7910d0a80 ZSTDNotFinal supported: 1
+2021/03/14-09:01:14.698229 7ff7910d0a80 ZSTD supported: 1
+2021/03/14-09:01:14.698233 7ff7910d0a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:01:14.698235 7ff7910d0a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:01:14.698385 7ff7910d0a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:01:14.698457 7ff7910d0a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:01:14.698459 7ff7910d0a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:01:14.698460 7ff7910d0a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:01:14.698461 7ff7910d0a80 Options.compaction_filter: None
+2021/03/14-09:01:14.698462 7ff7910d0a80 Options.compaction_filter_factory: None
+2021/03/14-09:01:14.698463 7ff7910d0a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:01:14.698464 7ff7910d0a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:01:14.698485 7ff7910d0a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x24e0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x24c5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:01:14.698491 7ff7910d0a80 Options.write_buffer_size: 134217728
+2021/03/14-09:01:14.698492 7ff7910d0a80 Options.max_write_buffer_number: 6
+2021/03/14-09:01:14.698493 7ff7910d0a80 Options.compression[0]: NoCompression
+2021/03/14-09:01:14.698494 7ff7910d0a80 Options.compression[1]: NoCompression
+2021/03/14-09:01:14.698495 7ff7910d0a80 Options.compression[2]: Snappy
+2021/03/14-09:01:14.698495 7ff7910d0a80 Options.compression[3]: Snappy
+2021/03/14-09:01:14.698496 7ff7910d0a80 Options.compression[4]: Snappy
+2021/03/14-09:01:14.698497 7ff7910d0a80 Options.compression[5]: Snappy
+2021/03/14-09:01:14.698497 7ff7910d0a80 Options.compression[6]: Snappy
+2021/03/14-09:01:14.698498 7ff7910d0a80 Options.bottommost_compression: Disabled
+2021/03/14-09:01:14.698499 7ff7910d0a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:01:14.698500 7ff7910d0a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:01:14.698501 7ff7910d0a80 Options.num_levels: 7
+2021/03/14-09:01:14.698501 7ff7910d0a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:01:14.698502 7ff7910d0a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:01:14.698503 7ff7910d0a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:01:14.698503 7ff7910d0a80 Options.compression_opts.level: -1
+2021/03/14-09:01:14.698504 7ff7910d0a80 Options.compression_opts.strategy: 0
+2021/03/14-09:01:14.698505 7ff7910d0a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:01:14.698505 7ff7910d0a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:01:14.698506 7ff7910d0a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:01:14.698507 7ff7910d0a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:01:14.698507 7ff7910d0a80 Options.target_file_size_base: 67108864
+2021/03/14-09:01:14.698508 7ff7910d0a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:01:14.698509 7ff7910d0a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:01:14.698509 7ff7910d0a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:01:14.698510 7ff7910d0a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:01:14.698512 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:01:14.698521 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:01:14.698522 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:01:14.698523 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:01:14.698523 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:01:14.698524 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:01:14.698525 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:01:14.698525 7ff7910d0a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:01:14.698526 7ff7910d0a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:01:14.698527 7ff7910d0a80 Options.arena_block_size: 16777216
+2021/03/14-09:01:14.698527 7ff7910d0a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:01:14.698528 7ff7910d0a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:01:14.698529 7ff7910d0a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:01:14.698529 7ff7910d0a80 Options.disable_auto_compactions: 0
+2021/03/14-09:01:14.698531 7ff7910d0a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:01:14.698532 7ff7910d0a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:01:14.698533 7ff7910d0a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:01:14.698534 7ff7910d0a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:01:14.698534 7ff7910d0a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:01:14.698535 7ff7910d0a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:01:14.698536 7ff7910d0a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:01:14.698537 7ff7910d0a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:01:14.698538 7ff7910d0a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:01:14.698539 7ff7910d0a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:01:14.698539 7ff7910d0a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:01:14.698540 7ff7910d0a80 Options.table_properties_collectors:
+2021/03/14-09:01:14.698541 7ff7910d0a80 Options.inplace_update_support: 0
+2021/03/14-09:01:14.698542 7ff7910d0a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:01:14.698542 7ff7910d0a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:01:14.698543 7ff7910d0a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:01:14.698544 7ff7910d0a80 Options.bloom_locality: 0
+2021/03/14-09:01:14.698545 7ff7910d0a80 Options.max_successive_merges: 0
+2021/03/14-09:01:14.698545 7ff7910d0a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:01:14.698546 7ff7910d0a80 Options.paranoid_file_checks: 0
+2021/03/14-09:01:14.698547 7ff7910d0a80 Options.force_consistency_checks: 0
+2021/03/14-09:01:14.698547 7ff7910d0a80 Options.report_bg_io_stats: 0
+2021/03/14-09:01:14.699067 7ff7910d0a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:01:14.699070 7ff7910d0a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:01:14.699321 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708874699299, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:01:14.699330 7ff7910d0a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:01:15.403497 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708875403494, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708876134261 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708876134261
new file mode 100644
index 0000000..f1b114a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708876134261
@@ -0,0 +1,186 @@
+2021/03/14-09:01:15.415718 7ff7910d0a80 RocksDB version: 5.11.3
+2021/03/14-09:01:15.415772 7ff7910d0a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:01:15.415774 7ff7910d0a80 Compile date Mar 13 2021
+2021/03/14-09:01:15.415776 7ff7910d0a80 DB SUMMARY
+2021/03/14-09:01:15.415962 7ff7910d0a80 CURRENT file: CURRENT
+2021/03/14-09:01:15.415964 7ff7910d0a80 IDENTITY file: IDENTITY
+2021/03/14-09:01:15.415982 7ff7910d0a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:01:15.415983 7ff7910d0a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:01:15.415984 7ff7910d0a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:01:15.415990 7ff7910d0a80 Options.error_if_exists: 0
+2021/03/14-09:01:15.415991 7ff7910d0a80 Options.create_if_missing: 1
+2021/03/14-09:01:15.415991 7ff7910d0a80 Options.paranoid_checks: 1
+2021/03/14-09:01:15.415992 7ff7910d0a80 Options.env: 0x7ff791a8a080
+2021/03/14-09:01:15.415993 7ff7910d0a80 Options.info_log: 0x24e8c90
+2021/03/14-09:01:15.415993 7ff7910d0a80 Options.max_file_opening_threads: 16
+2021/03/14-09:01:15.415994 7ff7910d0a80 Options.statistics: (nil)
+2021/03/14-09:01:15.415995 7ff7910d0a80 Options.use_fsync: 0
+2021/03/14-09:01:15.415995 7ff7910d0a80 Options.max_log_file_size: 0
+2021/03/14-09:01:15.415996 7ff7910d0a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:01:15.415996 7ff7910d0a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:01:15.415997 7ff7910d0a80 Options.keep_log_file_num: 1000
+2021/03/14-09:01:15.415998 7ff7910d0a80 Options.recycle_log_file_num: 0
+2021/03/14-09:01:15.415998 7ff7910d0a80 Options.allow_fallocate: 1
+2021/03/14-09:01:15.415999 7ff7910d0a80 Options.allow_mmap_reads: 0
+2021/03/14-09:01:15.415999 7ff7910d0a80 Options.allow_mmap_writes: 0
+2021/03/14-09:01:15.416000 7ff7910d0a80 Options.use_direct_reads: 0
+2021/03/14-09:01:15.416000 7ff7910d0a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:01:15.416001 7ff7910d0a80 Options.create_missing_column_families: 0
+2021/03/14-09:01:15.416001 7ff7910d0a80 Options.db_log_dir:
+2021/03/14-09:01:15.416002 7ff7910d0a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:01:15.416003 7ff7910d0a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:01:15.416003 7ff7910d0a80 Options.max_subcompactions: 1
+2021/03/14-09:01:15.416004 7ff7910d0a80 Options.max_background_flushes: -1
+2021/03/14-09:01:15.416004 7ff7910d0a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:01:15.416005 7ff7910d0a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:01:15.416006 7ff7910d0a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:01:15.416006 7ff7910d0a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:01:15.416007 7ff7910d0a80 Options.advise_random_on_open: 1
+2021/03/14-09:01:15.416007 7ff7910d0a80 Options.db_write_buffer_size: 0
+2021/03/14-09:01:15.416008 7ff7910d0a80 Options.write_buffer_manager: 0x24d0b90
+2021/03/14-09:01:15.416008 7ff7910d0a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:01:15.416009 7ff7910d0a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:01:15.416010 7ff7910d0a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:01:15.416010 7ff7910d0a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:01:15.416011 7ff7910d0a80 Options.rate_limiter: (nil)
+2021/03/14-09:01:15.416012 7ff7910d0a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:01:15.416020 7ff7910d0a80 Options.wal_recovery_mode: 2
+2021/03/14-09:01:15.416021 7ff7910d0a80 Options.enable_thread_tracking: 0
+2021/03/14-09:01:15.416022 7ff7910d0a80 Options.enable_pipelined_write: 0
+2021/03/14-09:01:15.416022 7ff7910d0a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:01:15.416023 7ff7910d0a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:01:15.416023 7ff7910d0a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:01:15.416024 7ff7910d0a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:01:15.416025 7ff7910d0a80 Options.row_cache: None
+2021/03/14-09:01:15.416025 7ff7910d0a80 Options.wal_filter: None
+2021/03/14-09:01:15.416026 7ff7910d0a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:01:15.416026 7ff7910d0a80 Options.allow_ingest_behind: 0
+2021/03/14-09:01:15.416027 7ff7910d0a80 Options.preserve_deletes: 0
+2021/03/14-09:01:15.416027 7ff7910d0a80 Options.two_write_queues: 0
+2021/03/14-09:01:15.416028 7ff7910d0a80 Options.manual_wal_flush: 0
+2021/03/14-09:01:15.416029 7ff7910d0a80 Options.max_background_jobs: 16
+2021/03/14-09:01:15.416030 7ff7910d0a80 Options.max_background_compactions: -1
+2021/03/14-09:01:15.416030 7ff7910d0a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:01:15.416031 7ff7910d0a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:01:15.416031 7ff7910d0a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:01:15.416032 7ff7910d0a80 Options.max_total_wal_size: 0
+2021/03/14-09:01:15.416033 7ff7910d0a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:01:15.416033 7ff7910d0a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:01:15.416034 7ff7910d0a80 Options.max_open_files: -1
+2021/03/14-09:01:15.416034 7ff7910d0a80 Options.bytes_per_sync: 0
+2021/03/14-09:01:15.416035 7ff7910d0a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:01:15.416036 7ff7910d0a80 Options.compaction_readahead_size: 0
+2021/03/14-09:01:15.416036 7ff7910d0a80 Compression algorithms supported:
+2021/03/14-09:01:15.416037 7ff7910d0a80 Snappy supported: 1
+2021/03/14-09:01:15.416037 7ff7910d0a80 Zlib supported: 1
+2021/03/14-09:01:15.416038 7ff7910d0a80 Bzip supported: 1
+2021/03/14-09:01:15.416038 7ff7910d0a80 LZ4 supported: 1
+2021/03/14-09:01:15.416039 7ff7910d0a80 ZSTDNotFinal supported: 1
+2021/03/14-09:01:15.416043 7ff7910d0a80 ZSTD supported: 1
+2021/03/14-09:01:15.416046 7ff7910d0a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:01:15.416047 7ff7910d0a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:01:15.416139 7ff7910d0a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:01:15.416193 7ff7910d0a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:01:15.416195 7ff7910d0a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:01:15.416195 7ff7910d0a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:01:15.416196 7ff7910d0a80 Options.compaction_filter: None
+2021/03/14-09:01:15.416197 7ff7910d0a80 Options.compaction_filter_factory: None
+2021/03/14-09:01:15.416197 7ff7910d0a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:01:15.416198 7ff7910d0a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:01:15.416215 7ff7910d0a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x24e0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x24c5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:01:15.416220 7ff7910d0a80 Options.write_buffer_size: 134217728
+2021/03/14-09:01:15.416221 7ff7910d0a80 Options.max_write_buffer_number: 6
+2021/03/14-09:01:15.416222 7ff7910d0a80 Options.compression[0]: NoCompression
+2021/03/14-09:01:15.416222 7ff7910d0a80 Options.compression[1]: NoCompression
+2021/03/14-09:01:15.416223 7ff7910d0a80 Options.compression[2]: Snappy
+2021/03/14-09:01:15.416224 7ff7910d0a80 Options.compression[3]: Snappy
+2021/03/14-09:01:15.416224 7ff7910d0a80 Options.compression[4]: Snappy
+2021/03/14-09:01:15.416225 7ff7910d0a80 Options.compression[5]: Snappy
+2021/03/14-09:01:15.416225 7ff7910d0a80 Options.compression[6]: Snappy
+2021/03/14-09:01:15.416226 7ff7910d0a80 Options.bottommost_compression: Disabled
+2021/03/14-09:01:15.416227 7ff7910d0a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:01:15.416227 7ff7910d0a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:01:15.416228 7ff7910d0a80 Options.num_levels: 7
+2021/03/14-09:01:15.416229 7ff7910d0a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:01:15.416229 7ff7910d0a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:01:15.416230 7ff7910d0a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:01:15.416230 7ff7910d0a80 Options.compression_opts.level: -1
+2021/03/14-09:01:15.416231 7ff7910d0a80 Options.compression_opts.strategy: 0
+2021/03/14-09:01:15.416231 7ff7910d0a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:01:15.416232 7ff7910d0a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:01:15.416233 7ff7910d0a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:01:15.416233 7ff7910d0a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:01:15.416234 7ff7910d0a80 Options.target_file_size_base: 67108864
+2021/03/14-09:01:15.416234 7ff7910d0a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:01:15.416235 7ff7910d0a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:01:15.416235 7ff7910d0a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:01:15.416236 7ff7910d0a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:01:15.416250 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:01:15.416260 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:01:15.416261 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:01:15.416262 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:01:15.416262 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:01:15.416263 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:01:15.416263 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:01:15.416264 7ff7910d0a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:01:15.416264 7ff7910d0a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:01:15.416265 7ff7910d0a80 Options.arena_block_size: 16777216
+2021/03/14-09:01:15.416266 7ff7910d0a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:01:15.416266 7ff7910d0a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:01:15.416267 7ff7910d0a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:01:15.416267 7ff7910d0a80 Options.disable_auto_compactions: 0
+2021/03/14-09:01:15.416269 7ff7910d0a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:01:15.416270 7ff7910d0a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:01:15.416270 7ff7910d0a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:01:15.416271 7ff7910d0a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:01:15.416272 7ff7910d0a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:01:15.416272 7ff7910d0a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:01:15.416273 7ff7910d0a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:01:15.416274 7ff7910d0a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:01:15.416274 7ff7910d0a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:01:15.416275 7ff7910d0a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:01:15.416276 7ff7910d0a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:01:15.416276 7ff7910d0a80 Options.table_properties_collectors:
+2021/03/14-09:01:15.416277 7ff7910d0a80 Options.inplace_update_support: 0
+2021/03/14-09:01:15.416277 7ff7910d0a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:01:15.416278 7ff7910d0a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:01:15.416279 7ff7910d0a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:01:15.416279 7ff7910d0a80 Options.bloom_locality: 0
+2021/03/14-09:01:15.416280 7ff7910d0a80 Options.max_successive_merges: 0
+2021/03/14-09:01:15.416281 7ff7910d0a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:01:15.416281 7ff7910d0a80 Options.paranoid_file_checks: 0
+2021/03/14-09:01:15.416282 7ff7910d0a80 Options.force_consistency_checks: 0
+2021/03/14-09:01:15.416282 7ff7910d0a80 Options.report_bg_io_stats: 0
+2021/03/14-09:01:15.416766 7ff7910d0a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:01:15.416769 7ff7910d0a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:01:15.416947 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708875416935, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:01:15.416953 7ff7910d0a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:01:16.122474 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708876122471, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708876835318 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708876835318
new file mode 100644
index 0000000..10186fd
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708876835318
@@ -0,0 +1,186 @@
+2021/03/14-09:01:16.134718 7ff7910d0a80 RocksDB version: 5.11.3
+2021/03/14-09:01:16.134773 7ff7910d0a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:01:16.134775 7ff7910d0a80 Compile date Mar 13 2021
+2021/03/14-09:01:16.134777 7ff7910d0a80 DB SUMMARY
+2021/03/14-09:01:16.134965 7ff7910d0a80 CURRENT file: CURRENT
+2021/03/14-09:01:16.134967 7ff7910d0a80 IDENTITY file: IDENTITY
+2021/03/14-09:01:16.134985 7ff7910d0a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:01:16.134986 7ff7910d0a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:01:16.134987 7ff7910d0a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:01:16.134998 7ff7910d0a80 Options.error_if_exists: 0
+2021/03/14-09:01:16.134998 7ff7910d0a80 Options.create_if_missing: 1
+2021/03/14-09:01:16.134999 7ff7910d0a80 Options.paranoid_checks: 1
+2021/03/14-09:01:16.135000 7ff7910d0a80 Options.env: 0x7ff791a8a080
+2021/03/14-09:01:16.135000 7ff7910d0a80 Options.info_log: 0x24e8c90
+2021/03/14-09:01:16.135001 7ff7910d0a80 Options.max_file_opening_threads: 16
+2021/03/14-09:01:16.135001 7ff7910d0a80 Options.statistics: (nil)
+2021/03/14-09:01:16.135002 7ff7910d0a80 Options.use_fsync: 0
+2021/03/14-09:01:16.135003 7ff7910d0a80 Options.max_log_file_size: 0
+2021/03/14-09:01:16.135003 7ff7910d0a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:01:16.135004 7ff7910d0a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:01:16.135005 7ff7910d0a80 Options.keep_log_file_num: 1000
+2021/03/14-09:01:16.135005 7ff7910d0a80 Options.recycle_log_file_num: 0
+2021/03/14-09:01:16.135006 7ff7910d0a80 Options.allow_fallocate: 1
+2021/03/14-09:01:16.135006 7ff7910d0a80 Options.allow_mmap_reads: 0
+2021/03/14-09:01:16.135007 7ff7910d0a80 Options.allow_mmap_writes: 0
+2021/03/14-09:01:16.135007 7ff7910d0a80 Options.use_direct_reads: 0
+2021/03/14-09:01:16.135008 7ff7910d0a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:01:16.135009 7ff7910d0a80 Options.create_missing_column_families: 0
+2021/03/14-09:01:16.135009 7ff7910d0a80 Options.db_log_dir:
+2021/03/14-09:01:16.135010 7ff7910d0a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:01:16.135010 7ff7910d0a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:01:16.135011 7ff7910d0a80 Options.max_subcompactions: 1
+2021/03/14-09:01:16.135011 7ff7910d0a80 Options.max_background_flushes: -1
+2021/03/14-09:01:16.135012 7ff7910d0a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:01:16.135013 7ff7910d0a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:01:16.135013 7ff7910d0a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:01:16.135014 7ff7910d0a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:01:16.135014 7ff7910d0a80 Options.advise_random_on_open: 1
+2021/03/14-09:01:16.135015 7ff7910d0a80 Options.db_write_buffer_size: 0
+2021/03/14-09:01:16.135015 7ff7910d0a80 Options.write_buffer_manager: 0x24d0b90
+2021/03/14-09:01:16.135016 7ff7910d0a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:01:16.135016 7ff7910d0a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:01:16.135017 7ff7910d0a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:01:16.135018 7ff7910d0a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:01:16.135018 7ff7910d0a80 Options.rate_limiter: (nil)
+2021/03/14-09:01:16.135019 7ff7910d0a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:01:16.135027 7ff7910d0a80 Options.wal_recovery_mode: 2
+2021/03/14-09:01:16.135028 7ff7910d0a80 Options.enable_thread_tracking: 0
+2021/03/14-09:01:16.135029 7ff7910d0a80 Options.enable_pipelined_write: 0
+2021/03/14-09:01:16.135029 7ff7910d0a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:01:16.135030 7ff7910d0a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:01:16.135030 7ff7910d0a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:01:16.135031 7ff7910d0a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:01:16.135032 7ff7910d0a80 Options.row_cache: None
+2021/03/14-09:01:16.135032 7ff7910d0a80 Options.wal_filter: None
+2021/03/14-09:01:16.135033 7ff7910d0a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:01:16.135033 7ff7910d0a80 Options.allow_ingest_behind: 0
+2021/03/14-09:01:16.135034 7ff7910d0a80 Options.preserve_deletes: 0
+2021/03/14-09:01:16.135034 7ff7910d0a80 Options.two_write_queues: 0
+2021/03/14-09:01:16.135035 7ff7910d0a80 Options.manual_wal_flush: 0
+2021/03/14-09:01:16.135036 7ff7910d0a80 Options.max_background_jobs: 16
+2021/03/14-09:01:16.135037 7ff7910d0a80 Options.max_background_compactions: -1
+2021/03/14-09:01:16.135037 7ff7910d0a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:01:16.135038 7ff7910d0a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:01:16.135038 7ff7910d0a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:01:16.135039 7ff7910d0a80 Options.max_total_wal_size: 0
+2021/03/14-09:01:16.135039 7ff7910d0a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:01:16.135040 7ff7910d0a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:01:16.135041 7ff7910d0a80 Options.max_open_files: -1
+2021/03/14-09:01:16.135041 7ff7910d0a80 Options.bytes_per_sync: 0
+2021/03/14-09:01:16.135042 7ff7910d0a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:01:16.135042 7ff7910d0a80 Options.compaction_readahead_size: 0
+2021/03/14-09:01:16.135043 7ff7910d0a80 Compression algorithms supported:
+2021/03/14-09:01:16.135043 7ff7910d0a80 Snappy supported: 1
+2021/03/14-09:01:16.135044 7ff7910d0a80 Zlib supported: 1
+2021/03/14-09:01:16.135045 7ff7910d0a80 Bzip supported: 1
+2021/03/14-09:01:16.135045 7ff7910d0a80 LZ4 supported: 1
+2021/03/14-09:01:16.135046 7ff7910d0a80 ZSTDNotFinal supported: 1
+2021/03/14-09:01:16.135050 7ff7910d0a80 ZSTD supported: 1
+2021/03/14-09:01:16.135053 7ff7910d0a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:01:16.135054 7ff7910d0a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:01:16.135152 7ff7910d0a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:01:16.135223 7ff7910d0a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:01:16.135226 7ff7910d0a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:01:16.135226 7ff7910d0a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:01:16.135227 7ff7910d0a80 Options.compaction_filter: None
+2021/03/14-09:01:16.135228 7ff7910d0a80 Options.compaction_filter_factory: None
+2021/03/14-09:01:16.135228 7ff7910d0a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:01:16.135229 7ff7910d0a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:01:16.135255 7ff7910d0a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x24e0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x24c5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:01:16.135262 7ff7910d0a80 Options.write_buffer_size: 134217728
+2021/03/14-09:01:16.135263 7ff7910d0a80 Options.max_write_buffer_number: 6
+2021/03/14-09:01:16.135264 7ff7910d0a80 Options.compression[0]: NoCompression
+2021/03/14-09:01:16.135264 7ff7910d0a80 Options.compression[1]: NoCompression
+2021/03/14-09:01:16.135265 7ff7910d0a80 Options.compression[2]: Snappy
+2021/03/14-09:01:16.135266 7ff7910d0a80 Options.compression[3]: Snappy
+2021/03/14-09:01:16.135266 7ff7910d0a80 Options.compression[4]: Snappy
+2021/03/14-09:01:16.135267 7ff7910d0a80 Options.compression[5]: Snappy
+2021/03/14-09:01:16.135267 7ff7910d0a80 Options.compression[6]: Snappy
+2021/03/14-09:01:16.135268 7ff7910d0a80 Options.bottommost_compression: Disabled
+2021/03/14-09:01:16.135269 7ff7910d0a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:01:16.135269 7ff7910d0a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:01:16.135270 7ff7910d0a80 Options.num_levels: 7
+2021/03/14-09:01:16.135271 7ff7910d0a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:01:16.135271 7ff7910d0a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:01:16.135272 7ff7910d0a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:01:16.135272 7ff7910d0a80 Options.compression_opts.level: -1
+2021/03/14-09:01:16.135273 7ff7910d0a80 Options.compression_opts.strategy: 0
+2021/03/14-09:01:16.135274 7ff7910d0a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:01:16.135274 7ff7910d0a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:01:16.135275 7ff7910d0a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:01:16.135275 7ff7910d0a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:01:16.135276 7ff7910d0a80 Options.target_file_size_base: 67108864
+2021/03/14-09:01:16.135276 7ff7910d0a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:01:16.135277 7ff7910d0a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:01:16.135278 7ff7910d0a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:01:16.135278 7ff7910d0a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:01:16.135280 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:01:16.135291 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:01:16.135292 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:01:16.135293 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:01:16.135294 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:01:16.135295 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:01:16.135296 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:01:16.135297 7ff7910d0a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:01:16.135298 7ff7910d0a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:01:16.135299 7ff7910d0a80 Options.arena_block_size: 16777216
+2021/03/14-09:01:16.135300 7ff7910d0a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:01:16.135301 7ff7910d0a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:01:16.135302 7ff7910d0a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:01:16.135303 7ff7910d0a80 Options.disable_auto_compactions: 0
+2021/03/14-09:01:16.135306 7ff7910d0a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:01:16.135307 7ff7910d0a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:01:16.135307 7ff7910d0a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:01:16.135308 7ff7910d0a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:01:16.135309 7ff7910d0a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:01:16.135309 7ff7910d0a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:01:16.135310 7ff7910d0a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:01:16.135311 7ff7910d0a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:01:16.135312 7ff7910d0a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:01:16.135312 7ff7910d0a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:01:16.135313 7ff7910d0a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:01:16.135313 7ff7910d0a80 Options.table_properties_collectors:
+2021/03/14-09:01:16.135314 7ff7910d0a80 Options.inplace_update_support: 0
+2021/03/14-09:01:16.135314 7ff7910d0a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:01:16.135315 7ff7910d0a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:01:16.135316 7ff7910d0a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:01:16.135317 7ff7910d0a80 Options.bloom_locality: 0
+2021/03/14-09:01:16.135317 7ff7910d0a80 Options.max_successive_merges: 0
+2021/03/14-09:01:16.135318 7ff7910d0a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:01:16.135318 7ff7910d0a80 Options.paranoid_file_checks: 0
+2021/03/14-09:01:16.135319 7ff7910d0a80 Options.force_consistency_checks: 0
+2021/03/14-09:01:16.135319 7ff7910d0a80 Options.report_bg_io_stats: 0
+2021/03/14-09:01:16.135745 7ff7910d0a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:01:16.135748 7ff7910d0a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:01:16.135928 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708876135914, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:01:16.135933 7ff7910d0a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:01:16.823541 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708876823538, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708877552234 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708877552234
new file mode 100644
index 0000000..46bab55
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708877552234
@@ -0,0 +1,186 @@
+2021/03/14-09:01:16.835758 7ff7910d0a80 RocksDB version: 5.11.3
+2021/03/14-09:01:16.835812 7ff7910d0a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:01:16.835813 7ff7910d0a80 Compile date Mar 13 2021
+2021/03/14-09:01:16.835816 7ff7910d0a80 DB SUMMARY
+2021/03/14-09:01:16.836002 7ff7910d0a80 CURRENT file: CURRENT
+2021/03/14-09:01:16.836003 7ff7910d0a80 IDENTITY file: IDENTITY
+2021/03/14-09:01:16.836021 7ff7910d0a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:01:16.836022 7ff7910d0a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:01:16.836023 7ff7910d0a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:01:16.836029 7ff7910d0a80 Options.error_if_exists: 0
+2021/03/14-09:01:16.836030 7ff7910d0a80 Options.create_if_missing: 1
+2021/03/14-09:01:16.836031 7ff7910d0a80 Options.paranoid_checks: 1
+2021/03/14-09:01:16.836031 7ff7910d0a80 Options.env: 0x7ff791a8a080
+2021/03/14-09:01:16.836032 7ff7910d0a80 Options.info_log: 0x24e8c90
+2021/03/14-09:01:16.836033 7ff7910d0a80 Options.max_file_opening_threads: 16
+2021/03/14-09:01:16.836033 7ff7910d0a80 Options.statistics: (nil)
+2021/03/14-09:01:16.836034 7ff7910d0a80 Options.use_fsync: 0
+2021/03/14-09:01:16.836034 7ff7910d0a80 Options.max_log_file_size: 0
+2021/03/14-09:01:16.836035 7ff7910d0a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:01:16.836036 7ff7910d0a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:01:16.836036 7ff7910d0a80 Options.keep_log_file_num: 1000
+2021/03/14-09:01:16.836037 7ff7910d0a80 Options.recycle_log_file_num: 0
+2021/03/14-09:01:16.836037 7ff7910d0a80 Options.allow_fallocate: 1
+2021/03/14-09:01:16.836038 7ff7910d0a80 Options.allow_mmap_reads: 0
+2021/03/14-09:01:16.836039 7ff7910d0a80 Options.allow_mmap_writes: 0
+2021/03/14-09:01:16.836039 7ff7910d0a80 Options.use_direct_reads: 0
+2021/03/14-09:01:16.836040 7ff7910d0a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:01:16.836040 7ff7910d0a80 Options.create_missing_column_families: 0
+2021/03/14-09:01:16.836041 7ff7910d0a80 Options.db_log_dir:
+2021/03/14-09:01:16.836041 7ff7910d0a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:01:16.836042 7ff7910d0a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:01:16.836043 7ff7910d0a80 Options.max_subcompactions: 1
+2021/03/14-09:01:16.836043 7ff7910d0a80 Options.max_background_flushes: -1
+2021/03/14-09:01:16.836044 7ff7910d0a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:01:16.836044 7ff7910d0a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:01:16.836045 7ff7910d0a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:01:16.836045 7ff7910d0a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:01:16.836046 7ff7910d0a80 Options.advise_random_on_open: 1
+2021/03/14-09:01:16.836047 7ff7910d0a80 Options.db_write_buffer_size: 0
+2021/03/14-09:01:16.836047 7ff7910d0a80 Options.write_buffer_manager: 0x24d0b90
+2021/03/14-09:01:16.836048 7ff7910d0a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:01:16.836048 7ff7910d0a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:01:16.836049 7ff7910d0a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:01:16.836049 7ff7910d0a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:01:16.836050 7ff7910d0a80 Options.rate_limiter: (nil)
+2021/03/14-09:01:16.836051 7ff7910d0a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:01:16.836059 7ff7910d0a80 Options.wal_recovery_mode: 2
+2021/03/14-09:01:16.836060 7ff7910d0a80 Options.enable_thread_tracking: 0
+2021/03/14-09:01:16.836060 7ff7910d0a80 Options.enable_pipelined_write: 0
+2021/03/14-09:01:16.836061 7ff7910d0a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:01:16.836061 7ff7910d0a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:01:16.836062 7ff7910d0a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:01:16.836063 7ff7910d0a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:01:16.836063 7ff7910d0a80 Options.row_cache: None
+2021/03/14-09:01:16.836064 7ff7910d0a80 Options.wal_filter: None
+2021/03/14-09:01:16.836064 7ff7910d0a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:01:16.836065 7ff7910d0a80 Options.allow_ingest_behind: 0
+2021/03/14-09:01:16.836065 7ff7910d0a80 Options.preserve_deletes: 0
+2021/03/14-09:01:16.836066 7ff7910d0a80 Options.two_write_queues: 0
+2021/03/14-09:01:16.836066 7ff7910d0a80 Options.manual_wal_flush: 0
+2021/03/14-09:01:16.836068 7ff7910d0a80 Options.max_background_jobs: 16
+2021/03/14-09:01:16.836068 7ff7910d0a80 Options.max_background_compactions: -1
+2021/03/14-09:01:16.836069 7ff7910d0a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:01:16.836070 7ff7910d0a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:01:16.836070 7ff7910d0a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:01:16.836071 7ff7910d0a80 Options.max_total_wal_size: 0
+2021/03/14-09:01:16.836071 7ff7910d0a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:01:16.836072 7ff7910d0a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:01:16.836073 7ff7910d0a80 Options.max_open_files: -1
+2021/03/14-09:01:16.836073 7ff7910d0a80 Options.bytes_per_sync: 0
+2021/03/14-09:01:16.836074 7ff7910d0a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:01:16.836074 7ff7910d0a80 Options.compaction_readahead_size: 0
+2021/03/14-09:01:16.836075 7ff7910d0a80 Compression algorithms supported:
+2021/03/14-09:01:16.836075 7ff7910d0a80 Snappy supported: 1
+2021/03/14-09:01:16.836076 7ff7910d0a80 Zlib supported: 1
+2021/03/14-09:01:16.836077 7ff7910d0a80 Bzip supported: 1
+2021/03/14-09:01:16.836077 7ff7910d0a80 LZ4 supported: 1
+2021/03/14-09:01:16.836078 7ff7910d0a80 ZSTDNotFinal supported: 1
+2021/03/14-09:01:16.836082 7ff7910d0a80 ZSTD supported: 1
+2021/03/14-09:01:16.836085 7ff7910d0a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:01:16.836086 7ff7910d0a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:01:16.836197 7ff7910d0a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:01:16.836262 7ff7910d0a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:01:16.836265 7ff7910d0a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:01:16.836265 7ff7910d0a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:01:16.836266 7ff7910d0a80 Options.compaction_filter: None
+2021/03/14-09:01:16.836267 7ff7910d0a80 Options.compaction_filter_factory: None
+2021/03/14-09:01:16.836267 7ff7910d0a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:01:16.836268 7ff7910d0a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:01:16.836286 7ff7910d0a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x24e0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x24c5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:01:16.836291 7ff7910d0a80 Options.write_buffer_size: 134217728
+2021/03/14-09:01:16.836292 7ff7910d0a80 Options.max_write_buffer_number: 6
+2021/03/14-09:01:16.836293 7ff7910d0a80 Options.compression[0]: NoCompression
+2021/03/14-09:01:16.836294 7ff7910d0a80 Options.compression[1]: NoCompression
+2021/03/14-09:01:16.836294 7ff7910d0a80 Options.compression[2]: Snappy
+2021/03/14-09:01:16.836295 7ff7910d0a80 Options.compression[3]: Snappy
+2021/03/14-09:01:16.836295 7ff7910d0a80 Options.compression[4]: Snappy
+2021/03/14-09:01:16.836296 7ff7910d0a80 Options.compression[5]: Snappy
+2021/03/14-09:01:16.836297 7ff7910d0a80 Options.compression[6]: Snappy
+2021/03/14-09:01:16.836297 7ff7910d0a80 Options.bottommost_compression: Disabled
+2021/03/14-09:01:16.836298 7ff7910d0a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:01:16.836299 7ff7910d0a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:01:16.836299 7ff7910d0a80 Options.num_levels: 7
+2021/03/14-09:01:16.836300 7ff7910d0a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:01:16.836300 7ff7910d0a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:01:16.836301 7ff7910d0a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:01:16.836301 7ff7910d0a80 Options.compression_opts.level: -1
+2021/03/14-09:01:16.836302 7ff7910d0a80 Options.compression_opts.strategy: 0
+2021/03/14-09:01:16.836303 7ff7910d0a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:01:16.836303 7ff7910d0a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:01:16.836304 7ff7910d0a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:01:16.836304 7ff7910d0a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:01:16.836305 7ff7910d0a80 Options.target_file_size_base: 67108864
+2021/03/14-09:01:16.836306 7ff7910d0a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:01:16.836306 7ff7910d0a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:01:16.836307 7ff7910d0a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:01:16.836308 7ff7910d0a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:01:16.836309 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:01:16.836318 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:01:16.836319 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:01:16.836320 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:01:16.836320 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:01:16.836321 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:01:16.836321 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:01:16.836322 7ff7910d0a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:01:16.836323 7ff7910d0a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:01:16.836323 7ff7910d0a80 Options.arena_block_size: 16777216
+2021/03/14-09:01:16.836324 7ff7910d0a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:01:16.836324 7ff7910d0a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:01:16.836325 7ff7910d0a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:01:16.836326 7ff7910d0a80 Options.disable_auto_compactions: 0
+2021/03/14-09:01:16.836327 7ff7910d0a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:01:16.836328 7ff7910d0a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:01:16.836329 7ff7910d0a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:01:16.836329 7ff7910d0a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:01:16.836330 7ff7910d0a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:01:16.836330 7ff7910d0a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:01:16.836331 7ff7910d0a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:01:16.836332 7ff7910d0a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:01:16.836333 7ff7910d0a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:01:16.836333 7ff7910d0a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:01:16.836334 7ff7910d0a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:01:16.836334 7ff7910d0a80 Options.table_properties_collectors:
+2021/03/14-09:01:16.836335 7ff7910d0a80 Options.inplace_update_support: 0
+2021/03/14-09:01:16.836335 7ff7910d0a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:01:16.836336 7ff7910d0a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:01:16.836337 7ff7910d0a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:01:16.836337 7ff7910d0a80 Options.bloom_locality: 0
+2021/03/14-09:01:16.836338 7ff7910d0a80 Options.max_successive_merges: 0
+2021/03/14-09:01:16.836339 7ff7910d0a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:01:16.836339 7ff7910d0a80 Options.paranoid_file_checks: 0
+2021/03/14-09:01:16.836340 7ff7910d0a80 Options.force_consistency_checks: 0
+2021/03/14-09:01:16.836340 7ff7910d0a80 Options.report_bg_io_stats: 0
+2021/03/14-09:01:16.836739 7ff7910d0a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:01:16.836742 7ff7910d0a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:01:16.836919 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708876836907, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:01:16.836925 7ff7910d0a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:01:17.539773 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708877539769, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708959669310 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708959669310
new file mode 100644
index 0000000..cc0f5f2
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708959669310
@@ -0,0 +1,186 @@
+2021/03/14-09:01:17.552685 7ff7910d0a80 RocksDB version: 5.11.3
+2021/03/14-09:01:17.552739 7ff7910d0a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:01:17.552741 7ff7910d0a80 Compile date Mar 13 2021
+2021/03/14-09:01:17.552743 7ff7910d0a80 DB SUMMARY
+2021/03/14-09:01:17.552951 7ff7910d0a80 CURRENT file: CURRENT
+2021/03/14-09:01:17.552953 7ff7910d0a80 IDENTITY file: IDENTITY
+2021/03/14-09:01:17.552971 7ff7910d0a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:01:17.552972 7ff7910d0a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:01:17.552973 7ff7910d0a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:01:17.552979 7ff7910d0a80 Options.error_if_exists: 0
+2021/03/14-09:01:17.552980 7ff7910d0a80 Options.create_if_missing: 1
+2021/03/14-09:01:17.552981 7ff7910d0a80 Options.paranoid_checks: 1
+2021/03/14-09:01:17.552981 7ff7910d0a80 Options.env: 0x7ff791a8a080
+2021/03/14-09:01:17.552982 7ff7910d0a80 Options.info_log: 0x24e8c90
+2021/03/14-09:01:17.552983 7ff7910d0a80 Options.max_file_opening_threads: 16
+2021/03/14-09:01:17.552983 7ff7910d0a80 Options.statistics: (nil)
+2021/03/14-09:01:17.552984 7ff7910d0a80 Options.use_fsync: 0
+2021/03/14-09:01:17.552984 7ff7910d0a80 Options.max_log_file_size: 0
+2021/03/14-09:01:17.552985 7ff7910d0a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:01:17.552986 7ff7910d0a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:01:17.552986 7ff7910d0a80 Options.keep_log_file_num: 1000
+2021/03/14-09:01:17.552987 7ff7910d0a80 Options.recycle_log_file_num: 0
+2021/03/14-09:01:17.552987 7ff7910d0a80 Options.allow_fallocate: 1
+2021/03/14-09:01:17.552988 7ff7910d0a80 Options.allow_mmap_reads: 0
+2021/03/14-09:01:17.552988 7ff7910d0a80 Options.allow_mmap_writes: 0
+2021/03/14-09:01:17.552989 7ff7910d0a80 Options.use_direct_reads: 0
+2021/03/14-09:01:17.552990 7ff7910d0a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:01:17.552990 7ff7910d0a80 Options.create_missing_column_families: 0
+2021/03/14-09:01:17.552991 7ff7910d0a80 Options.db_log_dir:
+2021/03/14-09:01:17.552991 7ff7910d0a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:01:17.552992 7ff7910d0a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:01:17.552992 7ff7910d0a80 Options.max_subcompactions: 1
+2021/03/14-09:01:17.552993 7ff7910d0a80 Options.max_background_flushes: -1
+2021/03/14-09:01:17.552994 7ff7910d0a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:01:17.552994 7ff7910d0a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:01:17.552995 7ff7910d0a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:01:17.552995 7ff7910d0a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:01:17.552996 7ff7910d0a80 Options.advise_random_on_open: 1
+2021/03/14-09:01:17.552996 7ff7910d0a80 Options.db_write_buffer_size: 0
+2021/03/14-09:01:17.552997 7ff7910d0a80 Options.write_buffer_manager: 0x24d0b90
+2021/03/14-09:01:17.552998 7ff7910d0a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:01:17.552998 7ff7910d0a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:01:17.552999 7ff7910d0a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:01:17.552999 7ff7910d0a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:01:17.553000 7ff7910d0a80 Options.rate_limiter: (nil)
+2021/03/14-09:01:17.553001 7ff7910d0a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:01:17.553010 7ff7910d0a80 Options.wal_recovery_mode: 2
+2021/03/14-09:01:17.553011 7ff7910d0a80 Options.enable_thread_tracking: 0
+2021/03/14-09:01:17.553012 7ff7910d0a80 Options.enable_pipelined_write: 0
+2021/03/14-09:01:17.553012 7ff7910d0a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:01:17.553013 7ff7910d0a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:01:17.553013 7ff7910d0a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:01:17.553014 7ff7910d0a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:01:17.553015 7ff7910d0a80 Options.row_cache: None
+2021/03/14-09:01:17.553015 7ff7910d0a80 Options.wal_filter: None
+2021/03/14-09:01:17.553016 7ff7910d0a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:01:17.553016 7ff7910d0a80 Options.allow_ingest_behind: 0
+2021/03/14-09:01:17.553017 7ff7910d0a80 Options.preserve_deletes: 0
+2021/03/14-09:01:17.553017 7ff7910d0a80 Options.two_write_queues: 0
+2021/03/14-09:01:17.553018 7ff7910d0a80 Options.manual_wal_flush: 0
+2021/03/14-09:01:17.553019 7ff7910d0a80 Options.max_background_jobs: 16
+2021/03/14-09:01:17.553020 7ff7910d0a80 Options.max_background_compactions: -1
+2021/03/14-09:01:17.553020 7ff7910d0a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:01:17.553021 7ff7910d0a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:01:17.553021 7ff7910d0a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:01:17.553022 7ff7910d0a80 Options.max_total_wal_size: 0
+2021/03/14-09:01:17.553023 7ff7910d0a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:01:17.553023 7ff7910d0a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:01:17.553024 7ff7910d0a80 Options.max_open_files: -1
+2021/03/14-09:01:17.553024 7ff7910d0a80 Options.bytes_per_sync: 0
+2021/03/14-09:01:17.553025 7ff7910d0a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:01:17.553025 7ff7910d0a80 Options.compaction_readahead_size: 0
+2021/03/14-09:01:17.553026 7ff7910d0a80 Compression algorithms supported:
+2021/03/14-09:01:17.553027 7ff7910d0a80 Snappy supported: 1
+2021/03/14-09:01:17.553027 7ff7910d0a80 Zlib supported: 1
+2021/03/14-09:01:17.553028 7ff7910d0a80 Bzip supported: 1
+2021/03/14-09:01:17.553028 7ff7910d0a80 LZ4 supported: 1
+2021/03/14-09:01:17.553029 7ff7910d0a80 ZSTDNotFinal supported: 1
+2021/03/14-09:01:17.553033 7ff7910d0a80 ZSTD supported: 1
+2021/03/14-09:01:17.553036 7ff7910d0a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:01:17.553038 7ff7910d0a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:01:17.553150 7ff7910d0a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:01:17.553213 7ff7910d0a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:01:17.553215 7ff7910d0a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:01:17.553216 7ff7910d0a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:01:17.553217 7ff7910d0a80 Options.compaction_filter: None
+2021/03/14-09:01:17.553217 7ff7910d0a80 Options.compaction_filter_factory: None
+2021/03/14-09:01:17.553218 7ff7910d0a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:01:17.553219 7ff7910d0a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:01:17.553236 7ff7910d0a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x24e0520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x24c5c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:01:17.553248 7ff7910d0a80 Options.write_buffer_size: 134217728
+2021/03/14-09:01:17.553249 7ff7910d0a80 Options.max_write_buffer_number: 6
+2021/03/14-09:01:17.553251 7ff7910d0a80 Options.compression[0]: NoCompression
+2021/03/14-09:01:17.553252 7ff7910d0a80 Options.compression[1]: NoCompression
+2021/03/14-09:01:17.553253 7ff7910d0a80 Options.compression[2]: Snappy
+2021/03/14-09:01:17.553254 7ff7910d0a80 Options.compression[3]: Snappy
+2021/03/14-09:01:17.553254 7ff7910d0a80 Options.compression[4]: Snappy
+2021/03/14-09:01:17.553255 7ff7910d0a80 Options.compression[5]: Snappy
+2021/03/14-09:01:17.553256 7ff7910d0a80 Options.compression[6]: Snappy
+2021/03/14-09:01:17.553257 7ff7910d0a80 Options.bottommost_compression: Disabled
+2021/03/14-09:01:17.553258 7ff7910d0a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:01:17.553259 7ff7910d0a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:01:17.553260 7ff7910d0a80 Options.num_levels: 7
+2021/03/14-09:01:17.553261 7ff7910d0a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:01:17.553262 7ff7910d0a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:01:17.553263 7ff7910d0a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:01:17.553263 7ff7910d0a80 Options.compression_opts.level: -1
+2021/03/14-09:01:17.553264 7ff7910d0a80 Options.compression_opts.strategy: 0
+2021/03/14-09:01:17.553264 7ff7910d0a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:01:17.553265 7ff7910d0a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:01:17.553266 7ff7910d0a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:01:17.553266 7ff7910d0a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:01:17.553267 7ff7910d0a80 Options.target_file_size_base: 67108864
+2021/03/14-09:01:17.553267 7ff7910d0a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:01:17.553268 7ff7910d0a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:01:17.553269 7ff7910d0a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:01:17.553269 7ff7910d0a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:01:17.553271 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:01:17.553281 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:01:17.553282 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:01:17.553282 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:01:17.553283 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:01:17.553283 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:01:17.553284 7ff7910d0a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:01:17.553284 7ff7910d0a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:01:17.553285 7ff7910d0a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:01:17.553286 7ff7910d0a80 Options.arena_block_size: 16777216
+2021/03/14-09:01:17.553286 7ff7910d0a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:01:17.553287 7ff7910d0a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:01:17.553287 7ff7910d0a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:01:17.553288 7ff7910d0a80 Options.disable_auto_compactions: 0
+2021/03/14-09:01:17.553290 7ff7910d0a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:01:17.553290 7ff7910d0a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:01:17.553291 7ff7910d0a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:01:17.553292 7ff7910d0a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:01:17.553292 7ff7910d0a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:01:17.553293 7ff7910d0a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:01:17.553294 7ff7910d0a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:01:17.553296 7ff7910d0a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:01:17.553297 7ff7910d0a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:01:17.553298 7ff7910d0a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:01:17.553299 7ff7910d0a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:01:17.553300 7ff7910d0a80 Options.table_properties_collectors:
+2021/03/14-09:01:17.553301 7ff7910d0a80 Options.inplace_update_support: 0
+2021/03/14-09:01:17.553302 7ff7910d0a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:01:17.553302 7ff7910d0a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:01:17.553304 7ff7910d0a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:01:17.553320 7ff7910d0a80 Options.bloom_locality: 0
+2021/03/14-09:01:17.553321 7ff7910d0a80 Options.max_successive_merges: 0
+2021/03/14-09:01:17.553321 7ff7910d0a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:01:17.553322 7ff7910d0a80 Options.paranoid_file_checks: 0
+2021/03/14-09:01:17.553323 7ff7910d0a80 Options.force_consistency_checks: 0
+2021/03/14-09:01:17.553324 7ff7910d0a80 Options.report_bg_io_stats: 0
+2021/03/14-09:01:17.553898 7ff7910d0a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:01:17.553900 7ff7910d0a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:01:17.554098 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708877554083, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:01:17.554104 7ff7910d0a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:01:18.253966 7ff7910d0a80 EVENT_LOG_v1 {"time_micros": 1615708878253963, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708960423298 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708960423298
new file mode 100644
index 0000000..f079356
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708960423298
@@ -0,0 +1,186 @@
+2021/03/14-09:02:39.669911 7f559c0c3a80 RocksDB version: 5.11.3
+2021/03/14-09:02:39.670006 7f559c0c3a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:02:39.670010 7f559c0c3a80 Compile date Mar 13 2021
+2021/03/14-09:02:39.670019 7f559c0c3a80 DB SUMMARY
+2021/03/14-09:02:39.670287 7f559c0c3a80 CURRENT file: CURRENT
+2021/03/14-09:02:39.670289 7f559c0c3a80 IDENTITY file: IDENTITY
+2021/03/14-09:02:39.670311 7f559c0c3a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:02:39.670312 7f559c0c3a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:02:39.670313 7f559c0c3a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:02:39.670321 7f559c0c3a80 Options.error_if_exists: 0
+2021/03/14-09:02:39.670322 7f559c0c3a80 Options.create_if_missing: 1
+2021/03/14-09:02:39.670322 7f559c0c3a80 Options.paranoid_checks: 1
+2021/03/14-09:02:39.670323 7f559c0c3a80 Options.env: 0x7f559ca7d080
+2021/03/14-09:02:39.670324 7f559c0c3a80 Options.info_log: 0x20a6c90
+2021/03/14-09:02:39.670324 7f559c0c3a80 Options.max_file_opening_threads: 16
+2021/03/14-09:02:39.670325 7f559c0c3a80 Options.statistics: (nil)
+2021/03/14-09:02:39.670326 7f559c0c3a80 Options.use_fsync: 0
+2021/03/14-09:02:39.670327 7f559c0c3a80 Options.max_log_file_size: 0
+2021/03/14-09:02:39.670327 7f559c0c3a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:02:39.670328 7f559c0c3a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:02:39.670329 7f559c0c3a80 Options.keep_log_file_num: 1000
+2021/03/14-09:02:39.670329 7f559c0c3a80 Options.recycle_log_file_num: 0
+2021/03/14-09:02:39.670330 7f559c0c3a80 Options.allow_fallocate: 1
+2021/03/14-09:02:39.670331 7f559c0c3a80 Options.allow_mmap_reads: 0
+2021/03/14-09:02:39.670331 7f559c0c3a80 Options.allow_mmap_writes: 0
+2021/03/14-09:02:39.670332 7f559c0c3a80 Options.use_direct_reads: 0
+2021/03/14-09:02:39.670333 7f559c0c3a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:02:39.670333 7f559c0c3a80 Options.create_missing_column_families: 0
+2021/03/14-09:02:39.670334 7f559c0c3a80 Options.db_log_dir:
+2021/03/14-09:02:39.670335 7f559c0c3a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:02:39.670335 7f559c0c3a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:02:39.670336 7f559c0c3a80 Options.max_subcompactions: 1
+2021/03/14-09:02:39.670337 7f559c0c3a80 Options.max_background_flushes: -1
+2021/03/14-09:02:39.670337 7f559c0c3a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:02:39.670338 7f559c0c3a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:02:39.670339 7f559c0c3a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:02:39.670339 7f559c0c3a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:02:39.670340 7f559c0c3a80 Options.advise_random_on_open: 1
+2021/03/14-09:02:39.670341 7f559c0c3a80 Options.db_write_buffer_size: 0
+2021/03/14-09:02:39.670341 7f559c0c3a80 Options.write_buffer_manager: 0x208eb90
+2021/03/14-09:02:39.670342 7f559c0c3a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:02:39.670343 7f559c0c3a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:02:39.670343 7f559c0c3a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:02:39.670344 7f559c0c3a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:02:39.670345 7f559c0c3a80 Options.rate_limiter: (nil)
+2021/03/14-09:02:39.670347 7f559c0c3a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:02:39.670360 7f559c0c3a80 Options.wal_recovery_mode: 2
+2021/03/14-09:02:39.670361 7f559c0c3a80 Options.enable_thread_tracking: 0
+2021/03/14-09:02:39.670362 7f559c0c3a80 Options.enable_pipelined_write: 0
+2021/03/14-09:02:39.670363 7f559c0c3a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:02:39.670363 7f559c0c3a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:02:39.670364 7f559c0c3a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:02:39.670365 7f559c0c3a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:02:39.670365 7f559c0c3a80 Options.row_cache: None
+2021/03/14-09:02:39.670366 7f559c0c3a80 Options.wal_filter: None
+2021/03/14-09:02:39.670367 7f559c0c3a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:02:39.670367 7f559c0c3a80 Options.allow_ingest_behind: 0
+2021/03/14-09:02:39.670368 7f559c0c3a80 Options.preserve_deletes: 0
+2021/03/14-09:02:39.670369 7f559c0c3a80 Options.two_write_queues: 0
+2021/03/14-09:02:39.670369 7f559c0c3a80 Options.manual_wal_flush: 0
+2021/03/14-09:02:39.670371 7f559c0c3a80 Options.max_background_jobs: 16
+2021/03/14-09:02:39.670371 7f559c0c3a80 Options.max_background_compactions: -1
+2021/03/14-09:02:39.670372 7f559c0c3a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:02:39.670373 7f559c0c3a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:02:39.670373 7f559c0c3a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:02:39.670374 7f559c0c3a80 Options.max_total_wal_size: 0
+2021/03/14-09:02:39.670375 7f559c0c3a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:02:39.670376 7f559c0c3a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:02:39.670376 7f559c0c3a80 Options.max_open_files: -1
+2021/03/14-09:02:39.670377 7f559c0c3a80 Options.bytes_per_sync: 0
+2021/03/14-09:02:39.670378 7f559c0c3a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:02:39.670378 7f559c0c3a80 Options.compaction_readahead_size: 0
+2021/03/14-09:02:39.670379 7f559c0c3a80 Compression algorithms supported:
+2021/03/14-09:02:39.670380 7f559c0c3a80 Snappy supported: 1
+2021/03/14-09:02:39.670380 7f559c0c3a80 Zlib supported: 1
+2021/03/14-09:02:39.670381 7f559c0c3a80 Bzip supported: 1
+2021/03/14-09:02:39.670382 7f559c0c3a80 LZ4 supported: 1
+2021/03/14-09:02:39.670382 7f559c0c3a80 ZSTDNotFinal supported: 1
+2021/03/14-09:02:39.670389 7f559c0c3a80 ZSTD supported: 1
+2021/03/14-09:02:39.670393 7f559c0c3a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:02:39.670395 7f559c0c3a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:02:39.670531 7f559c0c3a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:02:39.670602 7f559c0c3a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:02:39.670604 7f559c0c3a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:02:39.670605 7f559c0c3a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:02:39.670606 7f559c0c3a80 Options.compaction_filter: None
+2021/03/14-09:02:39.670606 7f559c0c3a80 Options.compaction_filter_factory: None
+2021/03/14-09:02:39.670607 7f559c0c3a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:02:39.670608 7f559c0c3a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:02:39.670630 7f559c0c3a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x209e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2083c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:02:39.670636 7f559c0c3a80 Options.write_buffer_size: 134217728
+2021/03/14-09:02:39.670637 7f559c0c3a80 Options.max_write_buffer_number: 6
+2021/03/14-09:02:39.670638 7f559c0c3a80 Options.compression[0]: NoCompression
+2021/03/14-09:02:39.670639 7f559c0c3a80 Options.compression[1]: NoCompression
+2021/03/14-09:02:39.670640 7f559c0c3a80 Options.compression[2]: Snappy
+2021/03/14-09:02:39.670640 7f559c0c3a80 Options.compression[3]: Snappy
+2021/03/14-09:02:39.670641 7f559c0c3a80 Options.compression[4]: Snappy
+2021/03/14-09:02:39.670642 7f559c0c3a80 Options.compression[5]: Snappy
+2021/03/14-09:02:39.670642 7f559c0c3a80 Options.compression[6]: Snappy
+2021/03/14-09:02:39.670643 7f559c0c3a80 Options.bottommost_compression: Disabled
+2021/03/14-09:02:39.670644 7f559c0c3a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:02:39.670645 7f559c0c3a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:02:39.670645 7f559c0c3a80 Options.num_levels: 7
+2021/03/14-09:02:39.670646 7f559c0c3a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:02:39.670647 7f559c0c3a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:02:39.670647 7f559c0c3a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:02:39.670648 7f559c0c3a80 Options.compression_opts.level: -1
+2021/03/14-09:02:39.670649 7f559c0c3a80 Options.compression_opts.strategy: 0
+2021/03/14-09:02:39.670650 7f559c0c3a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:02:39.670650 7f559c0c3a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:02:39.670651 7f559c0c3a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:02:39.670651 7f559c0c3a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:02:39.670652 7f559c0c3a80 Options.target_file_size_base: 67108864
+2021/03/14-09:02:39.670653 7f559c0c3a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:02:39.670653 7f559c0c3a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:02:39.670654 7f559c0c3a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:02:39.670655 7f559c0c3a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:02:39.670657 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:02:39.670666 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:02:39.670667 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:02:39.670668 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:02:39.670669 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:02:39.670669 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:02:39.670670 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:02:39.670670 7f559c0c3a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:02:39.670671 7f559c0c3a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:02:39.670672 7f559c0c3a80 Options.arena_block_size: 16777216
+2021/03/14-09:02:39.670673 7f559c0c3a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:02:39.670673 7f559c0c3a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:02:39.670674 7f559c0c3a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:02:39.670675 7f559c0c3a80 Options.disable_auto_compactions: 0
+2021/03/14-09:02:39.670677 7f559c0c3a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:02:39.670678 7f559c0c3a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:02:39.670678 7f559c0c3a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:02:39.670679 7f559c0c3a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:02:39.670680 7f559c0c3a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:02:39.670680 7f559c0c3a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:02:39.670681 7f559c0c3a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:02:39.670683 7f559c0c3a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:02:39.670683 7f559c0c3a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:02:39.670684 7f559c0c3a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:02:39.670684 7f559c0c3a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:02:39.670685 7f559c0c3a80 Options.table_properties_collectors:
+2021/03/14-09:02:39.670686 7f559c0c3a80 Options.inplace_update_support: 0
+2021/03/14-09:02:39.670687 7f559c0c3a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:02:39.670687 7f559c0c3a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:02:39.670688 7f559c0c3a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:02:39.670689 7f559c0c3a80 Options.bloom_locality: 0
+2021/03/14-09:02:39.670690 7f559c0c3a80 Options.max_successive_merges: 0
+2021/03/14-09:02:39.670690 7f559c0c3a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:02:39.670691 7f559c0c3a80 Options.paranoid_file_checks: 0
+2021/03/14-09:02:39.670691 7f559c0c3a80 Options.force_consistency_checks: 0
+2021/03/14-09:02:39.670692 7f559c0c3a80 Options.report_bg_io_stats: 0
+2021/03/14-09:02:39.671198 7f559c0c3a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:02:39.671201 7f559c0c3a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:02:39.671434 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708959671418, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:02:39.671442 7f559c0c3a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:02:40.411607 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708960411603, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708961143112 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708961143112
new file mode 100644
index 0000000..12df30e
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708961143112
@@ -0,0 +1,186 @@
+2021/03/14-09:02:40.423741 7f559c0c3a80 RocksDB version: 5.11.3
+2021/03/14-09:02:40.423796 7f559c0c3a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:02:40.423797 7f559c0c3a80 Compile date Mar 13 2021
+2021/03/14-09:02:40.423802 7f559c0c3a80 DB SUMMARY
+2021/03/14-09:02:40.423991 7f559c0c3a80 CURRENT file: CURRENT
+2021/03/14-09:02:40.423992 7f559c0c3a80 IDENTITY file: IDENTITY
+2021/03/14-09:02:40.424010 7f559c0c3a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:02:40.424011 7f559c0c3a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:02:40.424012 7f559c0c3a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:02:40.424019 7f559c0c3a80 Options.error_if_exists: 0
+2021/03/14-09:02:40.424019 7f559c0c3a80 Options.create_if_missing: 1
+2021/03/14-09:02:40.424020 7f559c0c3a80 Options.paranoid_checks: 1
+2021/03/14-09:02:40.424021 7f559c0c3a80 Options.env: 0x7f559ca7d080
+2021/03/14-09:02:40.424021 7f559c0c3a80 Options.info_log: 0x20a6c90
+2021/03/14-09:02:40.424022 7f559c0c3a80 Options.max_file_opening_threads: 16
+2021/03/14-09:02:40.424022 7f559c0c3a80 Options.statistics: (nil)
+2021/03/14-09:02:40.424023 7f559c0c3a80 Options.use_fsync: 0
+2021/03/14-09:02:40.424024 7f559c0c3a80 Options.max_log_file_size: 0
+2021/03/14-09:02:40.424024 7f559c0c3a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:02:40.424025 7f559c0c3a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:02:40.424026 7f559c0c3a80 Options.keep_log_file_num: 1000
+2021/03/14-09:02:40.424026 7f559c0c3a80 Options.recycle_log_file_num: 0
+2021/03/14-09:02:40.424027 7f559c0c3a80 Options.allow_fallocate: 1
+2021/03/14-09:02:40.424027 7f559c0c3a80 Options.allow_mmap_reads: 0
+2021/03/14-09:02:40.424028 7f559c0c3a80 Options.allow_mmap_writes: 0
+2021/03/14-09:02:40.424028 7f559c0c3a80 Options.use_direct_reads: 0
+2021/03/14-09:02:40.424029 7f559c0c3a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:02:40.424030 7f559c0c3a80 Options.create_missing_column_families: 0
+2021/03/14-09:02:40.424030 7f559c0c3a80 Options.db_log_dir:
+2021/03/14-09:02:40.424031 7f559c0c3a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:02:40.424031 7f559c0c3a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:02:40.424032 7f559c0c3a80 Options.max_subcompactions: 1
+2021/03/14-09:02:40.424032 7f559c0c3a80 Options.max_background_flushes: -1
+2021/03/14-09:02:40.424033 7f559c0c3a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:02:40.424034 7f559c0c3a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:02:40.424034 7f559c0c3a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:02:40.424035 7f559c0c3a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:02:40.424035 7f559c0c3a80 Options.advise_random_on_open: 1
+2021/03/14-09:02:40.424036 7f559c0c3a80 Options.db_write_buffer_size: 0
+2021/03/14-09:02:40.424036 7f559c0c3a80 Options.write_buffer_manager: 0x208eb90
+2021/03/14-09:02:40.424037 7f559c0c3a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:02:40.424038 7f559c0c3a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:02:40.424038 7f559c0c3a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:02:40.424039 7f559c0c3a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:02:40.424039 7f559c0c3a80 Options.rate_limiter: (nil)
+2021/03/14-09:02:40.424041 7f559c0c3a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:02:40.424049 7f559c0c3a80 Options.wal_recovery_mode: 2
+2021/03/14-09:02:40.424049 7f559c0c3a80 Options.enable_thread_tracking: 0
+2021/03/14-09:02:40.424050 7f559c0c3a80 Options.enable_pipelined_write: 0
+2021/03/14-09:02:40.424050 7f559c0c3a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:02:40.424051 7f559c0c3a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:02:40.424052 7f559c0c3a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:02:40.424052 7f559c0c3a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:02:40.424053 7f559c0c3a80 Options.row_cache: None
+2021/03/14-09:02:40.424053 7f559c0c3a80 Options.wal_filter: None
+2021/03/14-09:02:40.424054 7f559c0c3a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:02:40.424054 7f559c0c3a80 Options.allow_ingest_behind: 0
+2021/03/14-09:02:40.424055 7f559c0c3a80 Options.preserve_deletes: 0
+2021/03/14-09:02:40.424056 7f559c0c3a80 Options.two_write_queues: 0
+2021/03/14-09:02:40.424056 7f559c0c3a80 Options.manual_wal_flush: 0
+2021/03/14-09:02:40.424057 7f559c0c3a80 Options.max_background_jobs: 16
+2021/03/14-09:02:40.424058 7f559c0c3a80 Options.max_background_compactions: -1
+2021/03/14-09:02:40.424059 7f559c0c3a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:02:40.424059 7f559c0c3a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:02:40.424060 7f559c0c3a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:02:40.424060 7f559c0c3a80 Options.max_total_wal_size: 0
+2021/03/14-09:02:40.424061 7f559c0c3a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:02:40.424061 7f559c0c3a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:02:40.424062 7f559c0c3a80 Options.max_open_files: -1
+2021/03/14-09:02:40.424063 7f559c0c3a80 Options.bytes_per_sync: 0
+2021/03/14-09:02:40.424063 7f559c0c3a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:02:40.424064 7f559c0c3a80 Options.compaction_readahead_size: 0
+2021/03/14-09:02:40.424064 7f559c0c3a80 Compression algorithms supported:
+2021/03/14-09:02:40.424065 7f559c0c3a80 Snappy supported: 1
+2021/03/14-09:02:40.424066 7f559c0c3a80 Zlib supported: 1
+2021/03/14-09:02:40.424066 7f559c0c3a80 Bzip supported: 1
+2021/03/14-09:02:40.424067 7f559c0c3a80 LZ4 supported: 1
+2021/03/14-09:02:40.424067 7f559c0c3a80 ZSTDNotFinal supported: 1
+2021/03/14-09:02:40.424071 7f559c0c3a80 ZSTD supported: 1
+2021/03/14-09:02:40.424074 7f559c0c3a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:02:40.424076 7f559c0c3a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:02:40.424168 7f559c0c3a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:02:40.424222 7f559c0c3a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:02:40.424224 7f559c0c3a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:02:40.424225 7f559c0c3a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:02:40.424225 7f559c0c3a80 Options.compaction_filter: None
+2021/03/14-09:02:40.424226 7f559c0c3a80 Options.compaction_filter_factory: None
+2021/03/14-09:02:40.424227 7f559c0c3a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:02:40.424227 7f559c0c3a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:02:40.424261 7f559c0c3a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x209e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2083c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:02:40.424267 7f559c0c3a80 Options.write_buffer_size: 134217728
+2021/03/14-09:02:40.424268 7f559c0c3a80 Options.max_write_buffer_number: 6
+2021/03/14-09:02:40.424269 7f559c0c3a80 Options.compression[0]: NoCompression
+2021/03/14-09:02:40.424269 7f559c0c3a80 Options.compression[1]: NoCompression
+2021/03/14-09:02:40.424270 7f559c0c3a80 Options.compression[2]: Snappy
+2021/03/14-09:02:40.424271 7f559c0c3a80 Options.compression[3]: Snappy
+2021/03/14-09:02:40.424271 7f559c0c3a80 Options.compression[4]: Snappy
+2021/03/14-09:02:40.424272 7f559c0c3a80 Options.compression[5]: Snappy
+2021/03/14-09:02:40.424272 7f559c0c3a80 Options.compression[6]: Snappy
+2021/03/14-09:02:40.424273 7f559c0c3a80 Options.bottommost_compression: Disabled
+2021/03/14-09:02:40.424274 7f559c0c3a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:02:40.424274 7f559c0c3a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:02:40.424275 7f559c0c3a80 Options.num_levels: 7
+2021/03/14-09:02:40.424276 7f559c0c3a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:02:40.424276 7f559c0c3a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:02:40.424277 7f559c0c3a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:02:40.424277 7f559c0c3a80 Options.compression_opts.level: -1
+2021/03/14-09:02:40.424278 7f559c0c3a80 Options.compression_opts.strategy: 0
+2021/03/14-09:02:40.424278 7f559c0c3a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:02:40.424279 7f559c0c3a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:02:40.424280 7f559c0c3a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:02:40.424280 7f559c0c3a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:02:40.424281 7f559c0c3a80 Options.target_file_size_base: 67108864
+2021/03/14-09:02:40.424281 7f559c0c3a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:02:40.424282 7f559c0c3a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:02:40.424283 7f559c0c3a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:02:40.424283 7f559c0c3a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:02:40.424285 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:02:40.424294 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:02:40.424295 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:02:40.424295 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:02:40.424296 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:02:40.424296 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:02:40.424297 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:02:40.424297 7f559c0c3a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:02:40.424298 7f559c0c3a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:02:40.424299 7f559c0c3a80 Options.arena_block_size: 16777216
+2021/03/14-09:02:40.424299 7f559c0c3a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:02:40.424300 7f559c0c3a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:02:40.424300 7f559c0c3a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:02:40.424301 7f559c0c3a80 Options.disable_auto_compactions: 0
+2021/03/14-09:02:40.424303 7f559c0c3a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:02:40.424304 7f559c0c3a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:02:40.424304 7f559c0c3a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:02:40.424305 7f559c0c3a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:02:40.424305 7f559c0c3a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:02:40.424306 7f559c0c3a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:02:40.424306 7f559c0c3a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:02:40.424308 7f559c0c3a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:02:40.424308 7f559c0c3a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:02:40.424309 7f559c0c3a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:02:40.424309 7f559c0c3a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:02:40.424310 7f559c0c3a80 Options.table_properties_collectors:
+2021/03/14-09:02:40.424310 7f559c0c3a80 Options.inplace_update_support: 0
+2021/03/14-09:02:40.424311 7f559c0c3a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:02:40.424312 7f559c0c3a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:02:40.424312 7f559c0c3a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:02:40.424313 7f559c0c3a80 Options.bloom_locality: 0
+2021/03/14-09:02:40.424314 7f559c0c3a80 Options.max_successive_merges: 0
+2021/03/14-09:02:40.424314 7f559c0c3a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:02:40.424315 7f559c0c3a80 Options.paranoid_file_checks: 0
+2021/03/14-09:02:40.424315 7f559c0c3a80 Options.force_consistency_checks: 0
+2021/03/14-09:02:40.424316 7f559c0c3a80 Options.report_bg_io_stats: 0
+2021/03/14-09:02:40.424721 7f559c0c3a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:02:40.424724 7f559c0c3a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:02:40.424903 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708960424893, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:02:40.424908 7f559c0c3a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:02:41.131532 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708961131529, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708961859030 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708961859030
new file mode 100644
index 0000000..dfa15db
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708961859030
@@ -0,0 +1,186 @@
+2021/03/14-09:02:41.143572 7f559c0c3a80 RocksDB version: 5.11.3
+2021/03/14-09:02:41.150972 7f559c0c3a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:02:41.150978 7f559c0c3a80 Compile date Mar 13 2021
+2021/03/14-09:02:41.150990 7f559c0c3a80 DB SUMMARY
+2021/03/14-09:02:41.151218 7f559c0c3a80 CURRENT file: CURRENT
+2021/03/14-09:02:41.151219 7f559c0c3a80 IDENTITY file: IDENTITY
+2021/03/14-09:02:41.151244 7f559c0c3a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:02:41.151245 7f559c0c3a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:02:41.151246 7f559c0c3a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:02:41.151253 7f559c0c3a80 Options.error_if_exists: 0
+2021/03/14-09:02:41.151254 7f559c0c3a80 Options.create_if_missing: 1
+2021/03/14-09:02:41.151255 7f559c0c3a80 Options.paranoid_checks: 1
+2021/03/14-09:02:41.151255 7f559c0c3a80 Options.env: 0x7f559ca7d080
+2021/03/14-09:02:41.151256 7f559c0c3a80 Options.info_log: 0x20a6c90
+2021/03/14-09:02:41.151257 7f559c0c3a80 Options.max_file_opening_threads: 16
+2021/03/14-09:02:41.151257 7f559c0c3a80 Options.statistics: (nil)
+2021/03/14-09:02:41.151258 7f559c0c3a80 Options.use_fsync: 0
+2021/03/14-09:02:41.151259 7f559c0c3a80 Options.max_log_file_size: 0
+2021/03/14-09:02:41.151259 7f559c0c3a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:02:41.151260 7f559c0c3a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:02:41.151260 7f559c0c3a80 Options.keep_log_file_num: 1000
+2021/03/14-09:02:41.151261 7f559c0c3a80 Options.recycle_log_file_num: 0
+2021/03/14-09:02:41.151262 7f559c0c3a80 Options.allow_fallocate: 1
+2021/03/14-09:02:41.151262 7f559c0c3a80 Options.allow_mmap_reads: 0
+2021/03/14-09:02:41.151263 7f559c0c3a80 Options.allow_mmap_writes: 0
+2021/03/14-09:02:41.151263 7f559c0c3a80 Options.use_direct_reads: 0
+2021/03/14-09:02:41.151264 7f559c0c3a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:02:41.151265 7f559c0c3a80 Options.create_missing_column_families: 0
+2021/03/14-09:02:41.151265 7f559c0c3a80 Options.db_log_dir:
+2021/03/14-09:02:41.151266 7f559c0c3a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:02:41.151266 7f559c0c3a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:02:41.151267 7f559c0c3a80 Options.max_subcompactions: 1
+2021/03/14-09:02:41.151268 7f559c0c3a80 Options.max_background_flushes: -1
+2021/03/14-09:02:41.151268 7f559c0c3a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:02:41.151269 7f559c0c3a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:02:41.151269 7f559c0c3a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:02:41.151270 7f559c0c3a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:02:41.151271 7f559c0c3a80 Options.advise_random_on_open: 1
+2021/03/14-09:02:41.151271 7f559c0c3a80 Options.db_write_buffer_size: 0
+2021/03/14-09:02:41.151272 7f559c0c3a80 Options.write_buffer_manager: 0x208eb90
+2021/03/14-09:02:41.151272 7f559c0c3a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:02:41.151273 7f559c0c3a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:02:41.151273 7f559c0c3a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:02:41.151274 7f559c0c3a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:02:41.151274 7f559c0c3a80 Options.rate_limiter: (nil)
+2021/03/14-09:02:41.151277 7f559c0c3a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:02:41.151287 7f559c0c3a80 Options.wal_recovery_mode: 2
+2021/03/14-09:02:41.151287 7f559c0c3a80 Options.enable_thread_tracking: 0
+2021/03/14-09:02:41.151288 7f559c0c3a80 Options.enable_pipelined_write: 0
+2021/03/14-09:02:41.151288 7f559c0c3a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:02:41.151289 7f559c0c3a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:02:41.151290 7f559c0c3a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:02:41.151290 7f559c0c3a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:02:41.151291 7f559c0c3a80 Options.row_cache: None
+2021/03/14-09:02:41.151291 7f559c0c3a80 Options.wal_filter: None
+2021/03/14-09:02:41.151292 7f559c0c3a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:02:41.151293 7f559c0c3a80 Options.allow_ingest_behind: 0
+2021/03/14-09:02:41.151293 7f559c0c3a80 Options.preserve_deletes: 0
+2021/03/14-09:02:41.151294 7f559c0c3a80 Options.two_write_queues: 0
+2021/03/14-09:02:41.151294 7f559c0c3a80 Options.manual_wal_flush: 0
+2021/03/14-09:02:41.151296 7f559c0c3a80 Options.max_background_jobs: 16
+2021/03/14-09:02:41.151296 7f559c0c3a80 Options.max_background_compactions: -1
+2021/03/14-09:02:41.151297 7f559c0c3a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:02:41.151297 7f559c0c3a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:02:41.151298 7f559c0c3a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:02:41.151298 7f559c0c3a80 Options.max_total_wal_size: 0
+2021/03/14-09:02:41.151299 7f559c0c3a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:02:41.151300 7f559c0c3a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:02:41.151300 7f559c0c3a80 Options.max_open_files: -1
+2021/03/14-09:02:41.151301 7f559c0c3a80 Options.bytes_per_sync: 0
+2021/03/14-09:02:41.151301 7f559c0c3a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:02:41.151302 7f559c0c3a80 Options.compaction_readahead_size: 0
+2021/03/14-09:02:41.151302 7f559c0c3a80 Compression algorithms supported:
+2021/03/14-09:02:41.151303 7f559c0c3a80 Snappy supported: 1
+2021/03/14-09:02:41.151304 7f559c0c3a80 Zlib supported: 1
+2021/03/14-09:02:41.151304 7f559c0c3a80 Bzip supported: 1
+2021/03/14-09:02:41.151305 7f559c0c3a80 LZ4 supported: 1
+2021/03/14-09:02:41.151305 7f559c0c3a80 ZSTDNotFinal supported: 1
+2021/03/14-09:02:41.151312 7f559c0c3a80 ZSTD supported: 1
+2021/03/14-09:02:41.151317 7f559c0c3a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:02:41.151319 7f559c0c3a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:02:41.151460 7f559c0c3a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:02:41.151530 7f559c0c3a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:02:41.151532 7f559c0c3a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:02:41.151533 7f559c0c3a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:02:41.151534 7f559c0c3a80 Options.compaction_filter: None
+2021/03/14-09:02:41.151534 7f559c0c3a80 Options.compaction_filter_factory: None
+2021/03/14-09:02:41.151535 7f559c0c3a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:02:41.151536 7f559c0c3a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:02:41.151559 7f559c0c3a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x209e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2083c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:02:41.151568 7f559c0c3a80 Options.write_buffer_size: 134217728
+2021/03/14-09:02:41.151569 7f559c0c3a80 Options.max_write_buffer_number: 6
+2021/03/14-09:02:41.151570 7f559c0c3a80 Options.compression[0]: NoCompression
+2021/03/14-09:02:41.151571 7f559c0c3a80 Options.compression[1]: NoCompression
+2021/03/14-09:02:41.151571 7f559c0c3a80 Options.compression[2]: Snappy
+2021/03/14-09:02:41.151572 7f559c0c3a80 Options.compression[3]: Snappy
+2021/03/14-09:02:41.151572 7f559c0c3a80 Options.compression[4]: Snappy
+2021/03/14-09:02:41.151573 7f559c0c3a80 Options.compression[5]: Snappy
+2021/03/14-09:02:41.151573 7f559c0c3a80 Options.compression[6]: Snappy
+2021/03/14-09:02:41.151574 7f559c0c3a80 Options.bottommost_compression: Disabled
+2021/03/14-09:02:41.151575 7f559c0c3a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:02:41.151576 7f559c0c3a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:02:41.151577 7f559c0c3a80 Options.num_levels: 7
+2021/03/14-09:02:41.151577 7f559c0c3a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:02:41.151578 7f559c0c3a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:02:41.151579 7f559c0c3a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:02:41.151579 7f559c0c3a80 Options.compression_opts.level: -1
+2021/03/14-09:02:41.151580 7f559c0c3a80 Options.compression_opts.strategy: 0
+2021/03/14-09:02:41.151580 7f559c0c3a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:02:41.151581 7f559c0c3a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:02:41.151582 7f559c0c3a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:02:41.151582 7f559c0c3a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:02:41.151583 7f559c0c3a80 Options.target_file_size_base: 67108864
+2021/03/14-09:02:41.151583 7f559c0c3a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:02:41.151584 7f559c0c3a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:02:41.151585 7f559c0c3a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:02:41.151585 7f559c0c3a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:02:41.151587 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:02:41.151595 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:02:41.151596 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:02:41.151596 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:02:41.151597 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:02:41.151597 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:02:41.151598 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:02:41.151598 7f559c0c3a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:02:41.151599 7f559c0c3a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:02:41.151600 7f559c0c3a80 Options.arena_block_size: 16777216
+2021/03/14-09:02:41.151600 7f559c0c3a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:02:41.151601 7f559c0c3a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:02:41.151601 7f559c0c3a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:02:41.151602 7f559c0c3a80 Options.disable_auto_compactions: 0
+2021/03/14-09:02:41.151604 7f559c0c3a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:02:41.151605 7f559c0c3a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:02:41.151605 7f559c0c3a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:02:41.151606 7f559c0c3a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:02:41.151606 7f559c0c3a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:02:41.151607 7f559c0c3a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:02:41.151607 7f559c0c3a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:02:41.151609 7f559c0c3a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:02:41.151609 7f559c0c3a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:02:41.151610 7f559c0c3a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:02:41.151610 7f559c0c3a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:02:41.151611 7f559c0c3a80 Options.table_properties_collectors:
+2021/03/14-09:02:41.151611 7f559c0c3a80 Options.inplace_update_support: 0
+2021/03/14-09:02:41.151612 7f559c0c3a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:02:41.151613 7f559c0c3a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:02:41.151613 7f559c0c3a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:02:41.151614 7f559c0c3a80 Options.bloom_locality: 0
+2021/03/14-09:02:41.151615 7f559c0c3a80 Options.max_successive_merges: 0
+2021/03/14-09:02:41.151615 7f559c0c3a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:02:41.151616 7f559c0c3a80 Options.paranoid_file_checks: 0
+2021/03/14-09:02:41.151616 7f559c0c3a80 Options.force_consistency_checks: 0
+2021/03/14-09:02:41.151617 7f559c0c3a80 Options.report_bg_io_stats: 0
+2021/03/14-09:02:41.152137 7f559c0c3a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:02:41.152140 7f559c0c3a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:02:41.152348 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708961152335, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:02:41.152354 7f559c0c3a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:02:41.847098 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708961847095, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/LOG.old.1615708962575114 b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708962575114
new file mode 100644
index 0000000..987802b
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/LOG.old.1615708962575114
@@ -0,0 +1,186 @@
+2021/03/14-09:02:41.859483 7f559c0c3a80 RocksDB version: 5.11.3
+2021/03/14-09:02:41.859537 7f559c0c3a80 Git sha rocksdb_build_git_sha:dbd8fa09b823826dd2a30bc119dad7a6fa9a4c6d
+2021/03/14-09:02:41.859538 7f559c0c3a80 Compile date Mar 13 2021
+2021/03/14-09:02:41.859543 7f559c0c3a80 DB SUMMARY
+2021/03/14-09:02:41.859731 7f559c0c3a80 CURRENT file: CURRENT
+2021/03/14-09:02:41.859732 7f559c0c3a80 IDENTITY file: IDENTITY
+2021/03/14-09:02:41.859751 7f559c0c3a80 MANIFEST file: MANIFEST-000001 size: 13 Bytes
+2021/03/14-09:02:41.859752 7f559c0c3a80 SST files in tests/data/wpd19_10000.rocksdb dir, Total Num: 0, files:
+2021/03/14-09:02:41.859753 7f559c0c3a80 Write Ahead Log file in tests/data/wpd19_10000.rocksdb: 000003.log size: 16248008 ;
+2021/03/14-09:02:41.859759 7f559c0c3a80 Options.error_if_exists: 0
+2021/03/14-09:02:41.859760 7f559c0c3a80 Options.create_if_missing: 1
+2021/03/14-09:02:41.859761 7f559c0c3a80 Options.paranoid_checks: 1
+2021/03/14-09:02:41.859761 7f559c0c3a80 Options.env: 0x7f559ca7d080
+2021/03/14-09:02:41.859762 7f559c0c3a80 Options.info_log: 0x20a6c90
+2021/03/14-09:02:41.859763 7f559c0c3a80 Options.max_file_opening_threads: 16
+2021/03/14-09:02:41.859763 7f559c0c3a80 Options.statistics: (nil)
+2021/03/14-09:02:41.859764 7f559c0c3a80 Options.use_fsync: 0
+2021/03/14-09:02:41.859764 7f559c0c3a80 Options.max_log_file_size: 0
+2021/03/14-09:02:41.859765 7f559c0c3a80 Options.max_manifest_file_size: 18446744073709551615
+2021/03/14-09:02:41.859766 7f559c0c3a80 Options.log_file_time_to_roll: 0
+2021/03/14-09:02:41.859766 7f559c0c3a80 Options.keep_log_file_num: 1000
+2021/03/14-09:02:41.859767 7f559c0c3a80 Options.recycle_log_file_num: 0
+2021/03/14-09:02:41.859767 7f559c0c3a80 Options.allow_fallocate: 1
+2021/03/14-09:02:41.859768 7f559c0c3a80 Options.allow_mmap_reads: 0
+2021/03/14-09:02:41.859769 7f559c0c3a80 Options.allow_mmap_writes: 0
+2021/03/14-09:02:41.859769 7f559c0c3a80 Options.use_direct_reads: 0
+2021/03/14-09:02:41.859770 7f559c0c3a80 Options.use_direct_io_for_flush_and_compaction: 0
+2021/03/14-09:02:41.859770 7f559c0c3a80 Options.create_missing_column_families: 0
+2021/03/14-09:02:41.859771 7f559c0c3a80 Options.db_log_dir:
+2021/03/14-09:02:41.859771 7f559c0c3a80 Options.wal_dir: tests/data/wpd19_10000.rocksdb
+2021/03/14-09:02:41.859772 7f559c0c3a80 Options.table_cache_numshardbits: 6
+2021/03/14-09:02:41.859772 7f559c0c3a80 Options.max_subcompactions: 1
+2021/03/14-09:02:41.859773 7f559c0c3a80 Options.max_background_flushes: -1
+2021/03/14-09:02:41.859774 7f559c0c3a80 Options.WAL_ttl_seconds: 0
+2021/03/14-09:02:41.859774 7f559c0c3a80 Options.WAL_size_limit_MB: 0
+2021/03/14-09:02:41.859775 7f559c0c3a80 Options.manifest_preallocation_size: 4194304
+2021/03/14-09:02:41.859775 7f559c0c3a80 Options.is_fd_close_on_exec: 1
+2021/03/14-09:02:41.859776 7f559c0c3a80 Options.advise_random_on_open: 1
+2021/03/14-09:02:41.859777 7f559c0c3a80 Options.db_write_buffer_size: 0
+2021/03/14-09:02:41.859777 7f559c0c3a80 Options.write_buffer_manager: 0x208eb90
+2021/03/14-09:02:41.859778 7f559c0c3a80 Options.access_hint_on_compaction_start: 1
+2021/03/14-09:02:41.859778 7f559c0c3a80 Options.new_table_reader_for_compaction_inputs: 0
+2021/03/14-09:02:41.859779 7f559c0c3a80 Options.random_access_max_buffer_size: 1048576
+2021/03/14-09:02:41.859779 7f559c0c3a80 Options.use_adaptive_mutex: 0
+2021/03/14-09:02:41.859780 7f559c0c3a80 Options.rate_limiter: (nil)
+2021/03/14-09:02:41.859781 7f559c0c3a80 Options.sst_file_manager.rate_bytes_per_sec: 0
+2021/03/14-09:02:41.859789 7f559c0c3a80 Options.wal_recovery_mode: 2
+2021/03/14-09:02:41.859790 7f559c0c3a80 Options.enable_thread_tracking: 0
+2021/03/14-09:02:41.859791 7f559c0c3a80 Options.enable_pipelined_write: 0
+2021/03/14-09:02:41.859791 7f559c0c3a80 Options.allow_concurrent_memtable_write: 1
+2021/03/14-09:02:41.859792 7f559c0c3a80 Options.enable_write_thread_adaptive_yield: 1
+2021/03/14-09:02:41.859792 7f559c0c3a80 Options.write_thread_max_yield_usec: 100
+2021/03/14-09:02:41.859793 7f559c0c3a80 Options.write_thread_slow_yield_usec: 3
+2021/03/14-09:02:41.859794 7f559c0c3a80 Options.row_cache: None
+2021/03/14-09:02:41.859794 7f559c0c3a80 Options.wal_filter: None
+2021/03/14-09:02:41.859795 7f559c0c3a80 Options.avoid_flush_during_recovery: 0
+2021/03/14-09:02:41.859795 7f559c0c3a80 Options.allow_ingest_behind: 0
+2021/03/14-09:02:41.859796 7f559c0c3a80 Options.preserve_deletes: 0
+2021/03/14-09:02:41.859796 7f559c0c3a80 Options.two_write_queues: 0
+2021/03/14-09:02:41.859797 7f559c0c3a80 Options.manual_wal_flush: 0
+2021/03/14-09:02:41.859798 7f559c0c3a80 Options.max_background_jobs: 16
+2021/03/14-09:02:41.859799 7f559c0c3a80 Options.max_background_compactions: -1
+2021/03/14-09:02:41.859799 7f559c0c3a80 Options.avoid_flush_during_shutdown: 0
+2021/03/14-09:02:41.859800 7f559c0c3a80 Options.writable_file_max_buffer_size: 1048576
+2021/03/14-09:02:41.859800 7f559c0c3a80 Options.delayed_write_rate : 16777216
+2021/03/14-09:02:41.859801 7f559c0c3a80 Options.max_total_wal_size: 0
+2021/03/14-09:02:41.859802 7f559c0c3a80 Options.delete_obsolete_files_period_micros: 21600000000
+2021/03/14-09:02:41.859802 7f559c0c3a80 Options.stats_dump_period_sec: 600
+2021/03/14-09:02:41.859803 7f559c0c3a80 Options.max_open_files: -1
+2021/03/14-09:02:41.859803 7f559c0c3a80 Options.bytes_per_sync: 0
+2021/03/14-09:02:41.859804 7f559c0c3a80 Options.wal_bytes_per_sync: 0
+2021/03/14-09:02:41.859804 7f559c0c3a80 Options.compaction_readahead_size: 0
+2021/03/14-09:02:41.859805 7f559c0c3a80 Compression algorithms supported:
+2021/03/14-09:02:41.859806 7f559c0c3a80 Snappy supported: 1
+2021/03/14-09:02:41.859806 7f559c0c3a80 Zlib supported: 1
+2021/03/14-09:02:41.859807 7f559c0c3a80 Bzip supported: 1
+2021/03/14-09:02:41.859807 7f559c0c3a80 LZ4 supported: 1
+2021/03/14-09:02:41.859808 7f559c0c3a80 ZSTDNotFinal supported: 1
+2021/03/14-09:02:41.859812 7f559c0c3a80 ZSTD supported: 1
+2021/03/14-09:02:41.859815 7f559c0c3a80 Fast CRC32 supported: Supported on x86
+2021/03/14-09:02:41.859816 7f559c0c3a80 [db/db_impl_readonly.cc:22] Opening the db in read only mode
+2021/03/14-09:02:41.859906 7f559c0c3a80 [db/version_set.cc:2833] Recovering from manifest file: MANIFEST-000001
+2021/03/14-09:02:41.859958 7f559c0c3a80 [db/column_family.cc:429] --------------- Options for column family [default]:
+2021/03/14-09:02:41.859960 7f559c0c3a80 Options.comparator: leveldb.BytewiseComparator
+2021/03/14-09:02:41.859961 7f559c0c3a80 Options.merge_operator: UInt64AddOperator
+2021/03/14-09:02:41.859961 7f559c0c3a80 Options.compaction_filter: None
+2021/03/14-09:02:41.859962 7f559c0c3a80 Options.compaction_filter_factory: None
+2021/03/14-09:02:41.859963 7f559c0c3a80 Options.memtable_factory: SkipListFactory
+2021/03/14-09:02:41.859964 7f559c0c3a80 Options.table_factory: BlockBasedTable
+2021/03/14-09:02:41.859980 7f559c0c3a80 table_factory options: flush_block_policy_factory: FlushBlockBySizePolicyFactory (0x209e520)
+ cache_index_and_filter_blocks: 0
+ cache_index_and_filter_blocks_with_high_priority: 0
+ pin_l0_filter_and_index_blocks_in_cache: 0
+ index_type: 0
+ hash_index_allow_collision: 1
+ checksum: 1
+ no_block_cache: 0
+ block_cache: 0x2083c20
+ block_cache_name: LRUCache
+ block_cache_options:
+ capacity : 8388608
+ num_shard_bits : 4
+ strict_capacity_limit : 0
+ high_pri_pool_ratio: 0.000
+ block_cache_compressed: (nil)
+ persistent_cache: (nil)
+ block_size: 4096
+ block_size_deviation: 10
+ block_restart_interval: 16
+ index_block_restart_interval: 1
+ metadata_block_size: 4096
+ partition_filters: 0
+ use_delta_encoding: 1
+ filter_policy: nullptr
+ whole_key_filtering: 1
+ verify_compression: 0
+ read_amp_bytes_per_bit: 0
+ format_version: 2
+2021/03/14-09:02:41.859986 7f559c0c3a80 Options.write_buffer_size: 134217728
+2021/03/14-09:02:41.859986 7f559c0c3a80 Options.max_write_buffer_number: 6
+2021/03/14-09:02:41.859987 7f559c0c3a80 Options.compression[0]: NoCompression
+2021/03/14-09:02:41.859988 7f559c0c3a80 Options.compression[1]: NoCompression
+2021/03/14-09:02:41.859989 7f559c0c3a80 Options.compression[2]: Snappy
+2021/03/14-09:02:41.859989 7f559c0c3a80 Options.compression[3]: Snappy
+2021/03/14-09:02:41.859990 7f559c0c3a80 Options.compression[4]: Snappy
+2021/03/14-09:02:41.859990 7f559c0c3a80 Options.compression[5]: Snappy
+2021/03/14-09:02:41.859991 7f559c0c3a80 Options.compression[6]: Snappy
+2021/03/14-09:02:41.859991 7f559c0c3a80 Options.bottommost_compression: Disabled
+2021/03/14-09:02:41.859992 7f559c0c3a80 Options.prefix_extractor: rocksdb.FixedPrefix.3
+2021/03/14-09:02:41.859993 7f559c0c3a80 Options.memtable_insert_with_hint_prefix_extractor: nullptr
+2021/03/14-09:02:41.859993 7f559c0c3a80 Options.num_levels: 7
+2021/03/14-09:02:41.859994 7f559c0c3a80 Options.min_write_buffer_number_to_merge: 2
+2021/03/14-09:02:41.859995 7f559c0c3a80 Options.max_write_buffer_number_to_maintain: 0
+2021/03/14-09:02:41.859995 7f559c0c3a80 Options.compression_opts.window_bits: -14
+2021/03/14-09:02:41.859996 7f559c0c3a80 Options.compression_opts.level: -1
+2021/03/14-09:02:41.859996 7f559c0c3a80 Options.compression_opts.strategy: 0
+2021/03/14-09:02:41.859997 7f559c0c3a80 Options.compression_opts.max_dict_bytes: 0
+2021/03/14-09:02:41.859997 7f559c0c3a80 Options.level0_file_num_compaction_trigger: 2
+2021/03/14-09:02:41.859998 7f559c0c3a80 Options.level0_slowdown_writes_trigger: 20
+2021/03/14-09:02:41.859999 7f559c0c3a80 Options.level0_stop_writes_trigger: 36
+2021/03/14-09:02:41.859999 7f559c0c3a80 Options.target_file_size_base: 67108864
+2021/03/14-09:02:41.860000 7f559c0c3a80 Options.target_file_size_multiplier: 1
+2021/03/14-09:02:41.860000 7f559c0c3a80 Options.max_bytes_for_level_base: 536870912
+2021/03/14-09:02:41.860001 7f559c0c3a80 Options.level_compaction_dynamic_level_bytes: 0
+2021/03/14-09:02:41.860001 7f559c0c3a80 Options.max_bytes_for_level_multiplier: 10.000000
+2021/03/14-09:02:41.860003 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[0]: 1
+2021/03/14-09:02:41.860011 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[1]: 1
+2021/03/14-09:02:41.860012 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[2]: 1
+2021/03/14-09:02:41.860012 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[3]: 1
+2021/03/14-09:02:41.860013 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[4]: 1
+2021/03/14-09:02:41.860013 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[5]: 1
+2021/03/14-09:02:41.860014 7f559c0c3a80 Options.max_bytes_for_level_multiplier_addtl[6]: 1
+2021/03/14-09:02:41.860014 7f559c0c3a80 Options.max_sequential_skip_in_iterations: 8
+2021/03/14-09:02:41.860015 7f559c0c3a80 Options.max_compaction_bytes: 1677721600
+2021/03/14-09:02:41.860016 7f559c0c3a80 Options.arena_block_size: 16777216
+2021/03/14-09:02:41.860016 7f559c0c3a80 Options.soft_pending_compaction_bytes_limit: 68719476736
+2021/03/14-09:02:41.860017 7f559c0c3a80 Options.hard_pending_compaction_bytes_limit: 274877906944
+2021/03/14-09:02:41.860017 7f559c0c3a80 Options.rate_limit_delay_max_milliseconds: 100
+2021/03/14-09:02:41.860018 7f559c0c3a80 Options.disable_auto_compactions: 0
+2021/03/14-09:02:41.860020 7f559c0c3a80 Options.compaction_style: kCompactionStyleLevel
+2021/03/14-09:02:41.860020 7f559c0c3a80 Options.compaction_pri: kByCompensatedSize
+2021/03/14-09:02:41.860021 7f559c0c3a80 Options.compaction_options_universal.size_ratio: 1
+2021/03/14-09:02:41.860022 7f559c0c3a80 Options.compaction_options_universal.min_merge_width: 2
+2021/03/14-09:02:41.860022 7f559c0c3a80 Options.compaction_options_universal.max_merge_width: 4294967295
+2021/03/14-09:02:41.860023 7f559c0c3a80 Options.compaction_options_universal.max_size_amplification_percent: 200
+2021/03/14-09:02:41.860023 7f559c0c3a80 Options.compaction_options_universal.compression_size_percent: -1
+2021/03/14-09:02:41.860024 7f559c0c3a80 Options.compaction_options_universal.stop_style: kCompactionStopStyleTotalSize
+2021/03/14-09:02:41.860025 7f559c0c3a80 Options.compaction_options_fifo.max_table_files_size: 1073741824
+2021/03/14-09:02:41.860025 7f559c0c3a80 Options.compaction_options_fifo.allow_compaction: 0
+2021/03/14-09:02:41.860026 7f559c0c3a80 Options.compaction_options_fifo.ttl: 0
+2021/03/14-09:02:41.860027 7f559c0c3a80 Options.table_properties_collectors:
+2021/03/14-09:02:41.860027 7f559c0c3a80 Options.inplace_update_support: 0
+2021/03/14-09:02:41.860028 7f559c0c3a80 Options.inplace_update_num_locks: 10000
+2021/03/14-09:02:41.860028 7f559c0c3a80 Options.memtable_prefix_bloom_size_ratio: 0.000000
+2021/03/14-09:02:41.860029 7f559c0c3a80 Options.memtable_huge_page_size: 0
+2021/03/14-09:02:41.860030 7f559c0c3a80 Options.bloom_locality: 0
+2021/03/14-09:02:41.860030 7f559c0c3a80 Options.max_successive_merges: 0
+2021/03/14-09:02:41.860031 7f559c0c3a80 Options.optimize_filters_for_hits: 0
+2021/03/14-09:02:41.860032 7f559c0c3a80 Options.paranoid_file_checks: 0
+2021/03/14-09:02:41.860032 7f559c0c3a80 Options.force_consistency_checks: 0
+2021/03/14-09:02:41.860033 7f559c0c3a80 Options.report_bg_io_stats: 0
+2021/03/14-09:02:41.860417 7f559c0c3a80 [db/version_set.cc:3090] Recovered from manifest file:tests/data/wpd19_10000.rocksdb/MANIFEST-000001 succeeded,manifest_file_number is 1, next_file_number is 3, last_sequence is 0, log_number is 0,prev_log_number is 0,max_column_family is 0
+2021/03/14-09:02:41.860419 7f559c0c3a80 [db/version_set.cc:3106] Column family [default] (ID 0), log number is 0
+2021/03/14-09:02:41.860614 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708961860604, "job": 1, "event": "recovery_started", "log_files": [3]}
+2021/03/14-09:02:41.860621 7f559c0c3a80 [db/db_impl_open.cc:516] Recovering log #3 mode 2
+2021/03/14-09:02:42.562493 7f559c0c3a80 EVENT_LOG_v1 {"time_micros": 1615708962562489, "job": 1, "event": "recovery_finished"}
diff --git a/tests/data/wpd19_10000.rocksdb/MANIFEST-000001 b/tests/data/wpd19_10000.rocksdb/MANIFEST-000001
new file mode 100644
index 0000000..d89025a
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/MANIFEST-000001
Binary files differ
diff --git a/tests/data/wpd19_10000.rocksdb/OPTIONS-000005 b/tests/data/wpd19_10000.rocksdb/OPTIONS-000005
new file mode 100644
index 0000000..d972293
--- /dev/null
+++ b/tests/data/wpd19_10000.rocksdb/OPTIONS-000005
@@ -0,0 +1,144 @@
+# This is a RocksDB option file.
+#
+# For detailed file format spec, please refer to the example file
+# in examples/rocksdb_option_file_example.ini
+#
+
+[Version]
+ rocksdb_version=5.10.0
+ options_file_version=1.1
+
+[DBOptions]
+ manual_wal_flush=false
+ allow_ingest_behind=false
+ avoid_flush_during_shutdown=false
+ avoid_flush_during_recovery=false
+ info_log_level=INFO_LEVEL
+ access_hint_on_compaction_start=NORMAL
+ write_thread_max_yield_usec=100
+ write_thread_slow_yield_usec=3
+ wal_recovery_mode=kPointInTimeRecovery
+ allow_concurrent_memtable_write=true
+ enable_pipelined_write=false
+ fail_if_options_file_error=false
+ stats_dump_period_sec=600
+ wal_bytes_per_sync=0
+ max_total_wal_size=0
+ delayed_write_rate=16777216
+ two_write_queues=false
+ bytes_per_sync=0
+ writable_file_max_buffer_size=1048576
+ wal_dir=models/wpd19_10000.rocksdb
+ log_file_time_to_roll=0
+ keep_log_file_num=1000
+ WAL_ttl_seconds=0
+ db_write_buffer_size=0
+ table_cache_numshardbits=6
+ max_open_files=-1
+ max_file_opening_threads=16
+ WAL_size_limit_MB=0
+ max_background_flushes=-1
+ db_log_dir=
+ max_background_compactions=-1
+ max_subcompactions=1
+ max_background_jobs=16
+ random_access_max_buffer_size=1048576
+ delete_obsolete_files_period_micros=21600000000
+ skip_stats_update_on_db_open=false
+ skip_log_error_on_recovery=false
+ dump_malloc_stats=false
+ paranoid_checks=true
+ is_fd_close_on_exec=true
+ max_manifest_file_size=18446744073709551615
+ error_if_exists=false
+ use_adaptive_mutex=false
+ enable_thread_tracking=false
+ create_missing_column_families=false
+ create_if_missing=true
+ manifest_preallocation_size=4194304
+ base_background_compactions=-1
+ use_fsync=false
+ allow_2pc=false
+ recycle_log_file_num=0
+ use_direct_io_for_flush_and_compaction=false
+ compaction_readahead_size=0
+ use_direct_reads=false
+ allow_mmap_writes=false
+ preserve_deletes=false
+ enable_write_thread_adaptive_yield=true
+ max_log_file_size=0
+ allow_fallocate=true
+ allow_mmap_reads=false
+ new_table_reader_for_compaction_inputs=false
+ advise_random_on_open=true
+
+
+[CFOptions "default"]
+ compaction_style=kCompactionStyleLevel
+ compaction_filter_factory=nullptr
+ memtable_factory=SkipListFactory
+ memtable_insert_with_hint_prefix_extractor=nullptr
+ merge_operator=UInt64AddOperator
+ prefix_extractor=nullptr
+ comparator=leveldb.BytewiseComparator
+ bottommost_compression=kDisableCompressionOption
+ compression=kSnappyCompression
+ max_bytes_for_level_multiplier_additional=1:1:1:1:1:1:1
+ max_sequential_skip_in_iterations=8
+ memtable_prefix_bloom_size_ratio=0,000000
+ bloom_locality=0
+ memtable_huge_page_size=0
+ inplace_update_num_locks=10000
+ arena_block_size=16777216
+ target_file_size_multiplier=1
+ num_levels=7
+ min_write_buffer_number_to_merge=2
+ max_write_buffer_number_to_maintain=0
+ write_buffer_size=134217728
+ level0_stop_writes_trigger=36
+ level0_slowdown_writes_trigger=20
+ level0_file_num_compaction_trigger=2
+ max_bytes_for_level_multiplier=10,000000
+ hard_pending_compaction_bytes_limit=274877906944
+ max_compaction_bytes=1677721600
+ force_consistency_checks=false
+ optimize_filters_for_hits=false
+ compaction_options_fifo={allow_compaction=false;max_table_files_size=1073741824;ttl=0;}
+ max_bytes_for_level_base=536870912
+ level_compaction_dynamic_level_bytes=false
+ target_file_size_base=67108864
+ max_write_buffer_number=6
+ soft_pending_compaction_bytes_limit=68719476736
+ inplace_update_support=false
+ compression_per_level=kNoCompression:kNoCompression:kSnappyCompression:kSnappyCompression:kSnappyCompression:kSnappyCompression:kSnappyCompression
+ paranoid_file_checks=false
+ table_factory=BlockBasedTable
+ disable_auto_compactions=false
+ compaction_options_universal={allow_trivial_move=false;size_ratio=1;min_merge_width=2;max_size_amplification_percent=200;max_merge_width=4294967295;compression_size_percent=-1;stop_style=kCompactionStopStyleTotalSize;}
+ compaction_filter=nullptr
+ compaction_pri=kByCompensatedSize
+ max_successive_merges=0
+ report_bg_io_stats=false
+
+[TableOptions/BlockBasedTable "default"]
+ enable_index_compression=true
+ read_amp_bytes_per_bit=8589934592
+ format_version=2
+ whole_key_filtering=true
+ filter_policy=nullptr
+ verify_compression=false
+ block_size_deviation=10
+ block_size=4096
+ partition_filters=false
+ checksum=kCRC32c
+ hash_index_allow_collision=true
+ index_block_restart_interval=1
+ block_restart_interval=16
+ no_block_cache=false
+ pin_l0_filter_and_index_blocks_in_cache=false
+ cache_index_and_filter_blocks_with_high_priority=false
+ metadata_block_size=4096
+ cache_index_and_filter_blocks=false
+ index_type=kBinarySearch
+ flush_block_policy_factory=FlushBlockBySizePolicyFactory
+